A partial bandwidth determination method, apparatus and storage medium

Abstract

The present disclosure relates to a partial bandwidth determination method, device and storage medium. The BWP determination method is applied to a terminal, and the BWP determination method comprises: determining a first BWP, wherein the first BWP is a BWP monitored by the terminal after completing random access; the first BWP is different from a second BWP, and the second BWP is a BWP used by the terminal when performing random access. The present disclosure realizes determination of a BWP monitored by the terminal after completing random access.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, apparatus and storage medium for determining partial bandwidth. Background Technology

[0002] In Long Term Evolution (LTE) 4G systems, two major technologies were proposed to support IoT services: Machine Type Communication (MTC) and Narrow Band Internet of Things (NB-IoT). These technologies primarily target scenarios with low data rates and high latency, such as meter reading and environmental monitoring. Currently, NB-IoT can only support speeds of a few hundred kilobytes per second (Mbps), while MTC can only support speeds of a few megabytes per second (Mbps). With the continuous development of IoT services, such as video surveillance, smart homes, wearable devices, and industrial sensing and monitoring, these services typically require speeds of tens to 100 megabytes per second (Mbps) and relatively high latency. Therefore, MTC makes it difficult for NB-IoT to meet these requirements. Consequently, the need to design a new terminal type in 5G New Radio (NR) to cover mid-range IoT devices was proposed. In the current 3GPP standardization, this new terminal type is called a low-capability terminal, sometimes also referred to as a Reduced Capability UE, a Redcap terminal, or simply NR-lite.

[0003] In related technologies, considering factors such as the time-division multiplexing center frequency alignment of Redcap terminals and the overhead of the Synchronization Signal and PBCH block (SSB), a new type of Initial Downlink Bandwidth (Initial DLBWP) has been introduced. This newly introduced Initial DL BWP is dedicated to Random Access Channel (RACH) and may not contain SSB.

[0004] Based on the aforementioned Initial DL BWP dedicated to random access, Redcap terminals can complete random access. However, after a Redcap terminal completes random access using this dedicated Initial DL BWP, determining which BWP the terminal should monitor is a problem that urgently needs to be solved. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this disclosure provides a method, apparatus and storage medium for determining partial bandwidth.

[0006] According to a first aspect of the present disclosure, a BWP determination method is provided, applied to a terminal, the BWP determination method comprising:

[0007] A first BWP is determined, which is the BWP monitored after the terminal completes random access; the first BWP is different from the second BWP, which is the BWP used by the terminal when performing random access.

[0008] In one embodiment, the BWP determination method further includes: in response to the terminal completing random access, switching from the second BWP to the first BWP for monitoring.

[0009] In one implementation, determining the first BWP includes:

[0010] Obtain instructions sent by the network device, the instructions being used to configure a first BWP that the terminal needs to monitor subsequently; determine the first BWP based on the instructions.

[0011] In one embodiment, the instruction includes dedicated signaling for the terminal, wherein the dedicated signaling configures a first BWP that the terminal needs to monitor subsequently; or the instruction includes broadcast signaling shared by a first type of terminal, wherein the broadcast signaling is used to configure the first BWP, the communication capability of the first type of terminal is lower than a capability threshold, and the communication capability includes one or more of the following: transceiver bandwidth, number of transceiver antennas, maximum number of bits in a transmission block, and processing time delay.

[0012] In one embodiment, the BWP determination method further includes: determining a third BWP in response to the fact that the first BWP is not configured in the obtained instruction; the third BWP is the default BWP used by the terminal and is determined based on a common control resource set.

[0013] In one embodiment, the method further includes: determining, based on configuration information, to switch to the first BWP for monitoring; the configuration information includes an information field for indicating whether to enable or disable the first BWP.

[0014] In one implementation, in response to the satisfaction of a predefined condition, the configuration information includes an information field for indicating the enabling of the first BWP; the predefined condition includes at least one of the following conditions: the second BWP is a BWP dedicated to random access: the terminal's default BWP is not configured in the terminal's dedicated signaling.

[0015] In one embodiment, the first BWP includes a synchronous broadcast signal block.

[0016] In one embodiment, the method further includes: in response to the timer corresponding to the fourth BWP indicating a dynamic network indication from the terminal timeout, reverting to the first BWP; the timer is a timer configured by the network when configuring dynamic BWP switching for the terminal.

[0017] According to a second aspect of the present disclosure, a method for determining partial bandwidth bandwidth (BWP) is provided, applied to a network device, the BWP determination method comprising:

[0018] Sending an instruction, the instruction being used to configure the first BWP that the terminal needs to monitor subsequently; the first BWP is the BWP that the terminal monitors after completing random access; the first BWP is different from the second BWP, the second BWP is the BWP used by the terminal when performing random access.

[0019] In one embodiment, the instruction includes dedicated signaling for the terminal, wherein the dedicated signaling configures a first BWP that the terminal needs to monitor subsequently; or the instruction includes broadcast signaling shared by a first type of terminal, wherein the broadcast signaling is used to configure the first BWP, the communication capability of the first type of terminal is lower than a capability threshold, and the communication capability includes one or more of the following: transceiver bandwidth, number of transceiver antennas, maximum number of bits in a transmission block, and processing time delay.

[0020] In one embodiment, the method further includes:

[0021] Send configuration information, which includes an information field for indicating whether to enable or disable the first BWP.

[0022] In one implementation, in response to the satisfaction of a predefined condition, the configuration information includes an information field for indicating that the first BWP is enabled;

[0023] The predefined conditions include at least one of the following conditions:

[0024] The second BWP is a BWP dedicated to random access:

[0025] The terminal's default BWP is not configured in the terminal's dedicated signaling.

[0026] In one embodiment, the method further includes: communicating with the terminal based on the first BWP.

[0027] According to a third aspect of the present disclosure, a partial bandwidth (BWP) determination device is provided, applied to a terminal, the BWP determination device comprising:

[0028] The processing unit is configured to determine a first BWP, which is a BWP monitored after the terminal completes random access; the first BWP is different from the second BWP, which is the BWP used by the terminal when performing random access.

[0029] In one embodiment, the processing unit is further configured to: switch from the second BWP to the first BWP for monitoring in response to the terminal completing random access.

[0030] In one embodiment, the BWP determining device further includes an acquisition unit, which is configured to: acquire an instruction sent by a network device, the instruction being used to configure a first BWP that the terminal needs to monitor subsequently; and the processing unit is configured to determine the first BWP based on the instruction.

[0031] In one embodiment, the instruction includes dedicated signaling for the terminal, wherein the dedicated signaling configures a first BWP that the terminal needs to monitor subsequently; or the instruction includes broadcast signaling shared by a first type of terminal, wherein the broadcast signaling is used to configure the first BWP, the communication capability of the first type of terminal is lower than a capability threshold, and the communication capability includes one or more of the following: transceiver bandwidth, number of transceiver antennas, maximum number of bits in a transmission block, and processing time delay.

[0032] In one embodiment, the BWP processing unit is further configured to: determine a third BWP in response to the received instruction that the first BWP is not configured; the third BWP is the default BWP used by the terminal and is determined based on a common control resource set.

[0033] In one embodiment, the processing unit is configured to: determine, based on configuration information, to switch to the first BWP for monitoring; the configuration information includes an information field for indicating whether to enable or disable the first BWP.

[0034] In one implementation, in response to a predefined condition being met, the configuration information includes an information field for indicating that the first BWP is enabled; the predefined condition includes at least one of the following conditions:

[0035] The second BWP is a BWP dedicated to random access: the terminal's default BWP is not configured in the terminal's dedicated signaling.

[0036] In one embodiment, the first BWP includes a synchronous broadcast signal block.

[0037] In one embodiment, the processing unit is further configured to: fall back to the first BWP in response to the timer corresponding to the fourth BWP that the terminal monitors for network dynamic indication timeout; the timer is a timer configured by the network when configuring dynamic BWP switching for the terminal.

[0038] According to a fourth aspect of the present disclosure, a partial bandwidth (BWP) determination apparatus is provided, comprising:

[0039] The sending unit is configured to send instructions, which are used to configure a first BWP that the terminal needs to monitor subsequently; the first BWP is the BWP that the terminal monitors after completing random access; the first BWP is different from the second BWP, which is the BWP used by the terminal when performing random access.

[0040] In one embodiment, the instruction includes dedicated signaling for the terminal, wherein the dedicated signaling configures a first BWP that the terminal needs to monitor subsequently; or the instruction includes broadcast signaling shared by a first type of terminal, wherein the broadcast signaling is used to configure the first BWP, the communication capability of the first type of terminal is lower than a capability threshold, and the communication capability includes one or more of the following: transceiver bandwidth, number of transceiver antennas, maximum number of bits in a transmission block, and processing time delay.

[0041] In one embodiment, the sending unit is further configured to send configuration information, the configuration information including an information field for indicating whether the first BWP is enabled or disabled.

[0042] In one implementation, in response to a predefined condition being met, the configuration information includes an information field for indicating that the first BWP is enabled.

[0043] The predefined conditions include at least one of the following conditions: the second BWP is a BWP dedicated to random access; the terminal's default BWP is not configured in the terminal's dedicated signaling.

[0044] In one embodiment, the sending unit is further configured to communicate with the terminal based on the first BWP.

[0045] According to a fifth aspect of the present disclosure, a partial bandwidth (BWP) determination apparatus is provided, comprising:

[0046] Processor; memory used to store processor-executable instructions;

[0047] The processor is configured to execute the BWP determination method described in the first aspect or any embodiment of the first aspect.

[0048] According to a sixth aspect of the present disclosure, a partial bandwidth (BWP) determination apparatus is provided, comprising:

[0049] Processor; memory used to store processor-executable instructions;

[0050] The processor is configured to execute the BWP determination method described in the second aspect or any embodiment of the second aspect.

[0051] According to a seventh aspect of the present disclosure, a storage medium is provided, the storage medium storing instructions that, when executed by a processor of a terminal, enable the terminal to execute the BWP determination method described in the first aspect or any embodiment of the first aspect.

[0052] According to an eighth aspect of the present disclosure, a storage medium is provided, the storage medium storing instructions that, when executed by a processor of a terminal, enable the terminal to execute the BWP determination method described in the second aspect or any embodiment of the second aspect.

[0053] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: determining a first BWP for monitoring after the terminal completes random access, wherein the first BWP is different from the second BWP used by the terminal for random access, thereby realizing the determination of the BWP that needs to be monitored after the terminal completes random access.

[0054] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0055] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0056] Figure 1 This is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0057] Figure 2 This is a flowchart illustrating a BWP determination method according to an exemplary embodiment.

[0058] Figure 3 This is a flowchart illustrating a BWP determination method according to an exemplary embodiment.

[0059] Figures 4A to 4B This is a flowchart illustrating a BWP determination method according to an exemplary embodiment.

[0060] Figures 5A to 5BThis is a flowchart illustrating a BWP determination method according to an exemplary embodiment.

[0061] Figure 6 This is a flowchart illustrating a BWP determination method according to an exemplary embodiment.

[0062] Figure 7 This is a flowchart illustrating a BWP determination method according to an exemplary embodiment.

[0063] Figure 8 This is a flowchart illustrating a BWP determination method according to an exemplary embodiment.

[0064] Figure 9 This is a block diagram of a BWP determining device according to an exemplary embodiment.

[0065] Figure 10 This is a block diagram of a BWP determining device according to an exemplary embodiment.

[0066] Figure 11 This is a block diagram of an apparatus for determining a BWP according to an exemplary embodiment.

[0067] Figure 12 This is a block diagram of an apparatus for determining a BWP according to an exemplary embodiment. Detailed Implementation

[0068] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure.

[0069] The initial partial bandwidth determination method provided in this disclosure can be applied to... Figure 1 The wireless communication system shown. (See attached image) Figure 1 As shown, this wireless communication system includes a terminal and a network device. The terminal and the network device send and receive information through wireless resources.

[0070] Understandable Figure 1 The wireless communication system shown is for illustrative purposes only. A wireless communication system may also include other network devices, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Figure 1 Not shown in the diagram. This disclosure does not limit the number of network devices and terminals included in the wireless communication system.

[0071] It is further understood that the wireless communication system of this disclosure is a network providing wireless communication functionality. The wireless communication system can employ different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), 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 carrier sense multiple access with collision avoidance. Based on factors such as capacity, speed, and latency, networks can be categorized as 2G networks, 3G networks, 4G networks, or future evolution networks, such as 5G networks. 5G networks can also be referred to as New Radio (NR). For ease of description, this disclosure may sometimes simply refer to the wireless communication network as a network.

[0072] Furthermore, the network device involved in this disclosure can also be referred to as a wireless access network device. This wireless access network device can be: a base station, an evolved Node B (eB) base station, a home base station, an access point (AP) in a Wi-Fi system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a transmission and reception point (TRP), etc. It can also be a gNB in ​​an NR system, or a component or part of a base station. When it is a vehicle-to-everything (V2X) communication system, the network device can also be an in-vehicle device. It should be understood that the specific technologies and device forms used in the embodiments of this disclosure are not limited.

[0073] Furthermore, the terminal involved in this disclosure can also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., and is a device that provides voice and / or data connectivity to a user. For example, a terminal can be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals include: smartphones (Mobile Phones), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be an in-vehicle device. It should be understood that the embodiments of this disclosure do not limit the specific technology or specific device form adopted by the terminal.

[0074] The terminal involved in the embodiments of this disclosure can be understood as a new type of terminal designed in 5G NR: a low-capability terminal. Low-capability terminals are sometimes also called Reduced Capability UEs, Redcap terminals, or simply NR-lite. In the embodiments of this disclosure, this new terminal is referred to as a Redcap terminal.

[0075] Similar to Internet of Things (IoT) devices in Long Term Evolution (LTE), 5G NR-lite typically needs to meet the following requirements:

[0076] -Low cost, low complexity

[0077] - Some degree of coverage enhancement

[0078] - Power saving

[0079] Since current NR systems are designed for high-end terminals requiring high speed and low latency, they cannot meet the requirements of NR-lite. Therefore, the current NR system needs to be modified to meet the requirements of NR-lite. For example, to meet requirements such as low cost and low complexity, the radio frequency (RF) bandwidth of NR-IoT can be limited, for example, to 5 MHz or 10 MHz, or the size of the NR-lite buffer can be limited, thereby limiting the size of each received transmission block, etc. Regarding power saving, possible optimization directions include simplifying the communication process and reducing the number of times the NR-lite terminal detects the downlink control channel.

[0080] In related technologies, to better support terminals that cannot handle the entire carrier bandwidth and to adapt the receive bandwidth, the NR standard defines a Baseband Window (BWP). In NR systems, an Initial BWP is configured for terminals in idle / inactive states. When a terminal transitions from a connected state to an inactive state, it camps on the Initial BWP and monitors it. In related technologies, considering factors such as TDD center frequency alignment and SSB overhead for Redcap terminals, a dedicated Initial DL BWP for random access by Redcap terminals is also defined. This dedicated Initial DL BWP for random access does not include the Synchronization Signal and PBCH block (SSB).

[0081] However, which BWP to monitor after the terminal completes random access based on the Initial DL BWP dedicated to random access is still under discussion. One approach is to configure an active BWP for the terminal in random access message 4 (Msg.4). However, this approach incurs significant overhead. Furthermore, it results in a larger transmission block size (TBS) in Msg.4, potentially causing congestion of the initial DL BWP.

[0082] This disclosure provides a method for determining a BWP (Browser Window), which is used to determine the BWP monitored after a terminal completes random access.

[0083] In one embodiment, embodiments of this disclosure can determine a BWP that is different from the BWP used when the terminal makes a random access, and use it as the BWP monitored after the terminal makes a random access.

[0084] For ease of description in this embodiment, the BWP used for monitoring after the terminal completes random access is referred to as the first BWP, and the BWP used by the terminal for random access is referred to as the second BWP.

[0085] Figure 2 This is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be performed alone or in conjunction with other embodiments of this disclosure. Figure 2 As shown, the BWP determination method used in the terminal includes the following steps.

[0086] In step S11, the first BWP is determined.

[0087] The first BWP is the BWP monitored after the terminal completes random access. The first BWP is different from the second BWP, which is the BWP used by the terminal during random access.

[0088] The terminal can determine the first BWP based on either the network device configuration or predefined rules.

[0089] The differences between the first BWP and the second BWP include: different bandwidths, different subcarrier spacings, and different frequency domain positions.

[0090] In this embodiment of the disclosure, a first BWP for monitoring after the terminal completes random access is determined. The first BWP is different from the second BWP used by the terminal for random access, thereby realizing the determination of the BWP that needs to be monitored after the terminal completes random access.

[0091] In this embodiment of the disclosure, after the terminal completes random access, it can switch to a determined first BWP for monitoring.

[0092] Figure 3 This is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be performed alone or in conjunction with other embodiments of this disclosure. Figure 3 As shown, the BWP determination method used in the terminal includes the following steps.

[0093] In step S21, it is determined that the terminal uses the second BWP to complete random access.

[0094] The random access process performed by the terminal using the second BWP is similar to the random access process in related technologies. For example, it can be a four-step random access or a two-step random access.

[0095] In step S22, the monitoring is switched from the second BWP to the first BWP.

[0096] In this embodiment of the disclosure, since the terminal has already determined the first BWP that needs to be monitored after random access, it can automatically switch to the first BWP for monitoring after the terminal completes random access.

[0097] The process of determining the first BWP by the terminal will be described below according to the embodiments of this disclosure.

[0098] In one implementation, the terminal determines the first BWP based on the configuration of the network device.

[0099] In one example, the terminal can determine the first BWP based on signaling configured by the network device. The network device sends signaling to configure the first BWP, and the terminal receives the signaling sent by the network device and determines the first BWP based on the signaling.

[0100] In one embodiment of this disclosure, the network device can configure dedicated signaling for a terminal, meaning the network device sends signaling configured with a first BWP to the terminal dedicated to that signaling. The dedicated signaling for the terminal may include the BWP (first BWP) that the terminal needs to monitor subsequently. Alternatively, the dedicated signaling may not include the BWP that the terminal needs to monitor subsequently.

[0101] In one embodiment of this disclosure, when the terminal's dedicated signaling is configured with a first BWP that the terminal needs to monitor subsequently, the terminal determines that the BWP that needs to be monitored subsequently is the first BWP.

[0102] Figure 4A This is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be performed alone or in conjunction with other embodiments of this disclosure. Figure 4A As shown, the BWP determination method used in the terminal includes the following steps.

[0103] In step S31, the terminal's dedicated signaling is obtained.

[0104] In this embodiment of the disclosure, the terminal's dedicated signaling includes a first BWP for configuring the terminal to subsequently monitor.

[0105] In step S32, the first BWP is determined based on the terminal's dedicated signaling.

[0106] Furthermore, in this embodiment of the present disclosure, after the terminal determines that random access has been completed, it can switch to the first BWP included in the dedicated signaling for monitoring.

[0107] Figure 4B This is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be performed alone or in conjunction with other embodiments of this disclosure. Figure 4B As shown, the BWP determination method used in the terminal includes the following steps.

[0108] In step S33, in response to the terminal completing random access and the terminal's dedicated signaling being configured with a first BWP that the terminal needs to monitor subsequently, the system switches to the first BWP for monitoring.

[0109] In this embodiment of the disclosure, when the terminal configures the first BWP that the terminal needs to monitor in the dedicated signaling, switching to the first BWP for monitoring can avoid the problem of unclear BWP after random access is completed.

[0110] In the BWP determination method provided in this disclosure, the first BWP used for monitoring after random access can be configured in broadcast signaling.

[0111] In another example, the network device can be configured to include broadcast signaling with a first BWP. This broadcast signaling with the first BWP can be shared among terminals; that is, the network device can send the broadcast signaling with the first BWP to multiple terminals, for example, all terminals of the same type. In this embodiment, the terminals sharing the first BWP broadcast signaling are referred to as first-type terminals. The first-type terminal can be a Redcap terminal.

[0112] Figure 5A Figure 5 is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be executed alone or in conjunction with other embodiments of this disclosure. As shown in Figure 5, the BWP determination method is used in a terminal and includes the following steps.

[0113] In step S41, broadcast signaling shared by the first type of terminal is obtained, and the broadcast signaling is used to configure the first BWP.

[0114] In step S42, the first BWP is determined based on broadcast signaling.

[0115] In the BWP determination method provided in this embodiment, the first type of terminal can be a bandwidth capability suitable for a Redcap terminal, enabling the Redcap terminal to communicate in a first BWP suitable for the Redcap terminal. The communication capability of the first type of terminal is lower than a capability threshold. The communication capability of the terminal includes one or more of the following: transmit / receive bandwidth, number of transmit / receive antennas, maximum number of bits in a transmission block, and processing time delay.

[0116] Furthermore, in this embodiment of the present disclosure, after the terminal determines that random access has been completed, it can switch to the first BWP included in the dedicated signaling for monitoring.

[0117] Figure 5B This is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be performed alone or in conjunction with other embodiments of this disclosure. Figure 5B As shown, the BWP determination method used in the terminal includes the following steps.

[0118] In step S43, in response to the first BWP that the terminal needs to monitor after completing random access and being shared by the first type of terminals, the monitoring is switched to the first BWP.

[0119] In this embodiment of the disclosure, when the first BWP that the terminal needs to monitor is configured in the broadcast signaling, switching to the first BWP for monitoring can avoid the problem of unclear BWP being monitored after random access is completed.

[0120] In another implementation, the terminal can determine the subsequent switch to the first BWP for monitoring based on predefined conditions.

[0121] The predefined conditions include at least one of the following: the second BWP is a BWP dedicated to random access. The terminal's default BWP is not configured in the terminal's dedicated signaling. The default BWP used by the terminal will be referred to as the third BWP below.

[0122] If the predefined conditions are met, the terminal expects to switch to the first BWP for monitoring. If the predefined conditions are not met, the terminal switches to the third BWP for monitoring.

[0123] The BWP determination method provided in this disclosure can determine the first BWP monitored after the terminal completes random access based on a predefined definition. This can be understood as determining whether the terminal switches to the first BWP for monitoring after completing random access based on configuration information. The configuration information includes an information field for indicating the first BWP.

[0124] In one implementation, the information field indicating the first BWP can be enabled or disabled. When the first BWP is enabled, the terminal can switch to the first BWP for monitoring after completing random access. When the first BWP is disabled, the terminal will not be able to switch to the first BWP for monitoring after completing random access.

[0125] Furthermore, it can be understood that in this embodiment of the disclosure, if the network device does not configure a first BWP, the terminal determines the BWP to be monitored subsequently based on predefined conditions. In one example, if the terminal's dedicated signaling does not configure a first BWP, the terminal can switch to the default BWP used by the terminal for monitoring after completing random access. Alternatively, if the broadcast signaling shared by the first type of terminals does not configure a first BWP, the terminal can switch to the default BWP used by the terminal for monitoring after completing random access.

[0126] Figure 6This is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be performed alone or in conjunction with other embodiments of this disclosure. Figure 6 As shown, the BWP determination method used in the terminal includes the following steps.

[0127] In step S51, the instructions sent by the network device are obtained.

[0128] The instructions sent by the network device can be terminal-specific signaling or broadcast signaling shared between terminals.

[0129] In step S52, in response to the acquired signaling indicating that the first BWP is not configured, the third BWP is determined.

[0130] In step S53, in response to the terminal completing random access, the system switches to the third BWP for monitoring.

[0131] The third BWP is the default BWP used by the terminal. The default BWP used by the terminal can be determined based on a common control resource set (CORESET). For example, the third BWP can be a BWP defined in CORESET#0.

[0132] In one embodiment provided by this disclosure, the first BWP includes an SSB. The SSB included in the first BWP can be a cell-defined SSB or a non-cell-defined SSB.

[0133] Furthermore, in Release 15 / R16, when a terminal is configured with dynamic BWP handover, it indicates the BWP to be switched to, hereinafter referred to as the fourth BWP. In related technologies, this is a timer for switching to the fourth BWP. After the timer expires, the terminal will fall back to the default BWP. The default BWP can be configured by the network; if the network is not configured, the terminal will fall back to the initial BWP by default. However, in scenarios where the initial BWP is dedicated to random access, it is not suitable for connected mode because it is only used for random access.

[0134] Applying the BWP determination method provided in this embodiment, in response to the terminal determining the first BWP, the terminal monitors the timer corresponding to the fourth BWP indicated by the network dynamics and it times out, then falls back to the first BWP.

[0135] Figure 7This is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be performed alone or in conjunction with other embodiments of this disclosure. Figure 7 As shown, the BWP determination method used in the terminal includes the following steps.

[0136] In step S61, the first BWP is determined.

[0137] In step S62, the timer corresponding to the fourth BWP indicated by the network dynamics monitoring of the terminal times out, and the terminal reverts to the first BWP.

[0138] The timer corresponding to the fourth BWP can be understood as the timer configured by the network when configuring dynamic BWP switching for the terminal.

[0139] The BWP determination method provided in this disclosure involves the terminal determining a first BWP, which is different from the BWP used during random access. When a second BWP dedicated to random access is configured, the terminal monitors the timer corresponding to the fourth BWP dynamically indicated by the network and when it times out, then falls back to the first BWP. This solves the problem in related technologies where the default BWP is unclear when the corresponding timer times out during dynamic BWP switching.

[0140] It is understood that the BWP determination method provided in the embodiments of this disclosure can be applied to Redcap terminals.

[0141] When a RedCap terminal is configured with a BWP dedicated to random access (Initial DL BWP only for RACH), the BWP monitored after random access can be determined based on the method provided in this disclosure for determining the BWP monitored after random access is completed. Furthermore, the method for determining the BWP provided in this disclosure clarifies the terminal's behavior; for example, if a timer times out during dynamic BWP switching, the terminal can revert to the first BWP.

[0142] Based on the same concept, embodiments of this disclosure also provide a method for determining the BWP of a network device.

[0143] Figure 8 This is a flowchart illustrating a BWP determination method according to an exemplary embodiment. This BWP determination method can be performed alone or in conjunction with other embodiments of this disclosure. Figure 8 As shown, the BWP determination method is used in network devices and includes the following steps.

[0144] In step S71, an instruction is sent to configure the first BWP that the terminal needs to monitor subsequently.

[0145] Among them, the first BWP is the BWP monitored after the terminal completes random access; the first BWP is different from the second BWP, which is the BWP used by the terminal when performing random access.

[0146] In one implementation, the instructions sent by the network device include dedicated signaling for the terminal, in which the dedicated signaling configures the first BWP that the terminal needs to monitor subsequently.

[0147] In another implementation, the instructions sent by the network device include broadcast signaling shared by the first type of terminals. The broadcast signaling is used to configure the first BWP. The communication capability of the first type of terminals is lower than the capability threshold. The communication capability includes one or more of the following: transmit / receive bandwidth, number of transmit / receive antennas, maximum number of bits in a transmission block, and processing time delay.

[0148] In this embodiment of the disclosure, the network device can also send configuration information to the terminal, including an information field for indicating whether to enable or disable the first BWP. When the first BWP is enabled, the terminal can switch to the first BWP for monitoring after completing random access. When the first BWP is disabled, the terminal will not be able to switch to the first BWP for monitoring after completing random access.

[0149] In one implementation, the network device may include an information field in its configuration information indicating the enabling of a first BWP, provided that predefined conditions are met. The predefined conditions include at least one of the following: the second BWP is a BWP dedicated to random access; the terminal's default BWP is not configured in the terminal's dedicated signaling.

[0150] It is understood that in this embodiment of the disclosure, the network device can communicate with the terminal based on the first BWP. For example, the network device can identify the first BWP monitored after the terminal completes random access, and then perform subsequent communication scheduling for the terminal based on the first BWP.

[0151] The BWP determination method provided in this disclosure configures the first BWP used by the network device after the terminal performs random access, so that the terminal can clearly identify the BWP used after random access.

[0152] It is understood that the BWP determination method provided in this disclosure can be applied to implementation schemes where terminal and network device interact to determine BWP.

[0153] It should be noted that those skilled in the art will understand that the various implementation methods / embodiments described above in this disclosure can be used in conjunction with the foregoing embodiments, or they can be used independently. Whether used alone or in conjunction with the foregoing embodiments, the implementation principle is similar. In this disclosure, some embodiments are described as implementations used together. Of course, those skilled in the art will understand that such illustrative examples are not intended to limit the embodiments of this disclosure.

[0154] Based on the same concept, this disclosure also provides a BWP determining device.

[0155] It is understood that the BWP determining device provided in this disclosure includes hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of this disclosure.

[0156] Figure 9 This is a block diagram illustrating a BWP determining device according to an exemplary embodiment. (Refer to...) Figure 9 The BWP determination device 100 is applied to a terminal and includes a processing unit 101.

[0157] Processing unit 101 is configured to determine a first BWP, which is the BWP monitored after the terminal completes random access. The first BWP is different from the second BWP, which is the BWP used by the terminal during random access.

[0158] In one embodiment, the processing unit 101 is further configured to: switch from the second BWP to the first BWP for monitoring in response to the terminal completing random access.

[0159] In one embodiment, the BWP determination device further includes an acquisition unit 102 that acquires instructions sent by a network device, the instructions being used to configure a first BWP that the terminal needs to monitor subsequently. The processing unit 101 is configured to determine the first BWP based on the instructions.

[0160] In one embodiment, the acquisition unit 102 is configured to acquire the terminal's dedicated signaling, wherein the terminal's dedicated signaling contains a first BWP that the terminal needs to monitor subsequently.

[0161] In one embodiment, the acquisition unit 102 is configured to: acquire broadcast signaling shared by a first type of terminal, the broadcast signaling being used to configure a first BWP, the communication capability of the first type of terminal being lower than a capability threshold, the communication capability including one or more of the following: transceiver bandwidth, number of transceiver antennas, maximum number of bits in a transmission block, and processing time delay.

[0162] In one embodiment, the BWP processing unit 101 is further configured to: determine a third BWP in response to the received instruction not having a first BWP configured. The third BWP is the default BWP used by the terminal and is determined based on a common control resource set.

[0163] In one embodiment, the processing unit 101 is configured to: determine, based on configuration information, to switch to monitoring a first BWP. The configuration information includes an information field for indicating whether to enable or disable the first BWP.

[0164] In one implementation, in response to the satisfaction of predefined conditions, the configuration information includes an information field for indicating the enabling of the first BWP. The predefined conditions include at least one of the following:

[0165] The second BWP is a BWP dedicated to random access: the terminal's default BWP is not configured in the terminal's dedicated signaling.

[0166] In one implementation, the first BWP includes a synchronous broadcast signal block.

[0167] In one embodiment, the processing unit 101 is further configured to: fall back to the first BWP in response to the timer corresponding to the fourth BWP indicating network dynamics by the terminal timing out. The timer is a timer configured by the network when configuring dynamic BWP switching for the terminal.

[0168] Figure 10 This is a block diagram illustrating a BWP determining device according to an exemplary embodiment. (Refer to...) Figure 10 The BWP determination device 200 is applied to network equipment and includes a transmission unit 201.

[0169] The sending unit 201 is configured to send instructions, which are used to configure the first BWP that the terminal needs to monitor subsequently; the first BWP is the BWP that the terminal monitors after completing random access; the first BWP is different from the second BWP, which is the BWP used by the terminal when performing random access.

[0170] In one embodiment, the instruction includes dedicated signaling for the terminal, which configures a first BWP that the terminal needs to monitor subsequently; or the instruction includes broadcast signaling shared by a first type of terminal, which is used to configure the first BWP. The communication capability of the first type of terminal is lower than the capability threshold, and the communication capability includes one or more of the following: transmit / receive bandwidth, number of transmit / receive antennas, maximum number of bits in a transmission block, and processing time delay.

[0171] In one embodiment, the sending unit 201 is further configured to send configuration information, the configuration information including an information field for indicating whether to enable or disable the first BWP.

[0172] In one implementation, in response to the fulfillment of predefined conditions, the configuration information includes an information field for indicating the enabling of the first BWP.

[0173] The predefined conditions include at least one of the following: The second BWP is a BWP dedicated to random access: The terminal's default BWP is not configured in the terminal's dedicated signaling.

[0174] In one embodiment, the sending unit 201 is further configured to communicate with the terminal based on the first BWP.

[0175] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0176] Figure 11 This is a block diagram illustrating an apparatus for BWP determination according to an exemplary embodiment. The BWP determination apparatus 300 can be provided as a terminal as described in the above embodiments. For example, apparatus 300 can be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0177] Reference Figure 11 The device 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input / output (I / O) interface 312, sensor component 314, and communication component 316.

[0178] Processing component 302 typically controls the overall operation of device 300, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 302 may include one or more processors 320 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 302 may include one or more modules to facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302.

[0179] Memory 304 is configured to store various types of data to support the operation of device 300. Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, etc. Memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0180] The power supply component 306 provides power to the various components of the device 300. The power supply component 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 300.

[0181] Multimedia component 308 includes a screen that provides an output interface between the device 300 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 308 includes a front-facing camera and / or a rear-facing camera. When the device 300 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0182] Audio component 310 is configured to output and / or input audio signals. For example, audio component 310 includes a microphone (MIC) configured to receive external audio signals when device 300 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 304 or transmitted via communication component 316. In some embodiments, audio component 310 also includes a speaker for outputting audio signals.

[0183] I / O interface 312 provides an interface between processing component 302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0184] Sensor assembly 314 includes one or more sensors for providing status assessments of various aspects of device 300. For example, sensor assembly 314 may detect the on / off state of device 300, the relative positioning of components such as the display and keypad of device 300, changes in the position of device 300 or a component of device 300, the presence or absence of user contact with device 300, the orientation or acceleration / deceleration of device 300, and temperature changes of device 300. Sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 314 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0185] Communication component 316 is configured to facilitate wired or wireless communication between device 300 and other devices. Device 300 can access wireless networks based on communication standards, such as WiFi, 2G, or a combination thereof. In one exemplary embodiment, communication component 316 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 316 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0186] In an exemplary embodiment, the apparatus 300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0187] In an exemplary embodiment, a storage medium including instructions is also provided, such as a memory 304 including instructions, which can be executed by a processor 320 of the device 300 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0188] Figure 12 This is a block diagram illustrating an apparatus 400 for BWP determination according to an exemplary embodiment. For example, apparatus 400 may be provided as a network device. (Refer to...) Figure 12 The apparatus 400 includes a processing component 422, which further includes one or more processors, and memory resources represented by memory 432 for storing instructions, such as application programs, that can be executed by the processing component 422. The application programs stored in memory 432 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 422 is configured to execute instructions to perform the methods described above.

[0189] Device 400 may also include a power supply component 426 configured to perform power management of device 400, a wired or wireless network interface 450 configured to connect device 400 to a network, and an input / output (I / O) interface 458. Device 400 may operate on an operating system stored in memory 432, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0190] In an exemplary embodiment, the apparatus 400 is applied to include: a processor; and a memory for storing processor-executable instructions. The processor is configured to execute the random access method described above.

[0191] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 432 including instructions, which can be executed by a processing component 422 of the apparatus 400 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0192] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0193] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0194] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0195] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.

[0196] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for determining a bandwidth part (BWP), comprising: The BWP determination method applied to a terminal comprises: determining a first BWP, wherein the first BWP is a BWP monitored by the terminal after completing random access, and the first BWP is different from a second BWP, wherein the second BWP is a BWP used by the terminal when performing random access; based on configuration information, determining to switch to the first BWP for monitoring, wherein the configuration information comprises an information field indicating enabling or disabling the first BWP; in response to satisfying a predefined condition, the configuration information comprises an information field indicating enabling the first BWP; the predefined condition comprises at least one of the following conditions: the second BWP is a BWP dedicated to random access; a default BWP of the terminal is not configured in exclusive signaling of the terminal.

2. The BWP determination method of claim 1, wherein, The BWP determination method further comprises: in response to the terminal completing random access, switching from the second BWP to the first BWP for monitoring.

3. The BWP determination method of claim 1, wherein, The determination of the first BWP comprises: obtaining an instruction sent by a network device, wherein the instruction is used to configure a first BWP which needs to be monitored by the terminal subsequently; and based on the instruction, determining the first BWP.

4. The BWP determination method of claim 3, wherein, The instruction comprises exclusive signaling of the terminal, wherein the exclusive signaling of the terminal is used to configure the first BWP which needs to be monitored by the terminal subsequently; or the instruction comprises broadcast signaling shared by a first type of terminal, wherein the broadcast signaling is used to configure the first BWP, and the communication capability of the first type of terminal is lower than a capability threshold, and the communication capability comprises one or more of the following: transmission bandwidth, number of transmission antennas, maximum number of bits of a transmission block, and processing time delay.

5. The BWP determination method of claim 3 or 4, wherein, The BWP determination method further comprises: in response to the first BWP not being configured in the obtained instruction, determining a third BWP; the third BWP is a default BWP used by the terminal, and is determined based on a common control resource set.

6. The BWP determination method of claim 1, wherein, The first BWP comprises a synchronization broadcast signal block.

7. The BWP determination method of claim 1, wherein, The method further comprises: in response to a timer corresponding to a fourth BWP monitored by the terminal by network dynamic indication expiring, falling back to the first BWP; the timer is a timer configured by the network when configuring dynamic BWP switching for the terminal.

8. A method for determining a bandwidth part (BWP), the method comprising: The BWP determination method applied to a network device comprises: sending an instruction, wherein the instruction is used to configure a first BWP which needs to be monitored by a terminal subsequently, and the first BWP is a BWP monitored by the terminal after completing random access, and the first BWP is different from a second BWP, wherein the second BWP is a BWP used by the terminal when performing random access; sending configuration information, wherein the configuration information comprises an information field indicating enabling or disabling the first BWP; in response to satisfying a predefined condition, the configuration information comprises an information field indicating enabling the first BWP; the predefined condition comprises at least one of the following conditions: the second BWP is a BWP dedicated to random access; a default BWP of the terminal is not configured in exclusive signaling of the terminal.

9. The BWP determination method of claim 8, wherein, The instruction comprises exclusive signaling of the terminal, wherein the exclusive signaling of the terminal is used to configure the first BWP which needs to be monitored by the terminal subsequently; or The instructions include broadcast signaling shared by terminals of a first type, the broadcast signaling being used for configuring the first BWP, the terminals of the first type having a communication capability lower than a capability threshold, the communication capability including one or more of a transceiving bandwidth, a number of transceiving antennas, a maximum number of bits of a transport block, and a processing time delay.

10. The BWP determination method of claim 8 or 9, wherein, The method further includes: communicating with the terminal based on the first BWP.

11. A partial bandwidth (BWP) determination device, characterized in that, Comprising: a processing unit configured to determine a first BWP, the first BWP being a BWP for the terminal to monitor after completing random access; based on configuration information, determine to switch to the first BWP for monitoring, the configuration information including an information field indicating enabling or disabling the first BWP, the first BWP being different from a second BWP, the second BWP being a BWP used by the terminal for random access; in response to satisfying a predefined condition, the configuration information including an information field indicating enabling the first BWP; the predefined condition including at least one of the following conditions: the second BWP being a BWP dedicated for random access; a default BWP of the terminal not being configured in dedicated signaling of the terminal.

12. A partial bandwidth (BWP) determination apparatus, comprising: Comprising: a sending unit configured to send instructions for configuring a first BWP for the terminal to monitor subsequently, and send configuration information, the configuration information including an information field indicating enabling or disabling the first BWP, the first BWP being a BWP for the terminal to monitor after completing random access, the first BWP being different from a second BWP, the second BWP being a BWP used by the terminal for random access; in response to satisfying a predefined condition, the configuration information including an information field indicating enabling the first BWP; the predefined condition including at least one of the following conditions: the second BWP being a BWP dedicated for random access; a default BWP of the terminal not being configured in dedicated signaling of the terminal.

13. A partial bandwidth (BWP) determination device, characterized in that, Comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the BWP determination method of any one of claims 1-7.

14. A partial bandwidth (BWP) determination device, characterized in that, Comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the BWP determination method of any one of claims 8-10.

15. A storage medium, characterized by The storage medium has instructions stored therein, when the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to perform the BWP determination method of any one of claims 1-7.

16. A storage medium, characterized by The storage medium has instructions stored therein, when the instructions in the storage medium are executed by a processor of a network device, the network device is enabled to perform the BWP determination method of any one of claims 8-10.

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