A random access resource configuration and random access method and device

Abstract

The present invention provides a random access resource configuration and random access method and device, the method comprising: determining, based on the initial partial bandwidth BWP configuration information of a cell, a UE number threshold corresponding to random access at the initial BWP when a preset random access success rate requirement is met; comparing the total number of UEs in the cell with the UE number threshold, and determining, based on the comparison result, whether to configure a random access resource dedicated to a connection state for the UE in the cell. The solution provided by the present invention solves the problem that the existing random access resource configuration method and the corresponding random access method cannot reduce the waste of frequency band resources while improving the UE access success rate.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a random access resource configuration and a random access method and device. Background Art

[0002] In the 5G NR system, the uplink and downlink bandwidth resources used by UEs in a network cell are variable, which is achieved by configuring different partial bandwidths (Bandwidth Part, BWP) for UEs by network-side devices. BWP is a combination of multiple continuous resource blocks (Resource Block, RB) in a transmission carrier. The network-side device divides a carrier of a bandwidth into several BWPs, and allocates part of the bandwidth in the entire large carrier to UEs for access and data transmission. The UE only needs to perform corresponding operations within the BWP configured by the network-side device, without the need to perform full bandwidth detection and maintenance. Therefore, BWP enables the UE to better use a larger carrier bandwidth.

[0003] When the UE enters the Radio Resource Control (RRC) connected state from the idle state, the BWP of the cell where it resides is called the initial BWP, and the working bandwidth used by the UE within the corresponding bandwidth of the cell where it resides is the UE-activated BWP. In the NR system, UEs in different states use different BWPs for access. When supporting multiple BWPs, a UE in the idle state can only perform random access on the initial BWP. For a UE in the connected state, there are also a variety of scenarios where random access is required, but the UE does not necessarily perform random access on the initial BWP.

[0004] At present, when a connected UE performs random access, if the activated BWP is the initial BWP, it will access the initial BWP together with the idle UE. In the case of a large number of UEs in the cell or a large connection scenario, the success rate of random access will be greatly reduced. In order to improve the success rate of UE random access, all connected UEs can be diverted to other BWPs other than the initial BWP for random access. However, this requires the network side equipment to configure the Physical Random Access Channel (PRACH) resources on the corresponding UL (uplink) BWP on all BWPs, and configure the common search space on the corresponding DL (downlink) BWP.

[0005] Based on this, the commonly used method to improve the success rate of UE random access is to configure PRACH resources on the initial BWP and the UL BWP corresponding to all other BWPs, and also configure the corresponding common search space on the corresponding DL BWP, so as to divert the UE in the connected state whose currently activated BWP is not the initial BWP to the currently activated BWP for access. However, this method performs corresponding configuration on the UL BWP and DL BWP corresponding to all BWPs, which will cause a huge waste of frequency band resources.

[0006] Therefore, the current method for configuring random access resources and the method for UE to perform random access according to the random access resource configuration have the problem of being unable to reduce the waste of frequency band resources while improving the UE access success rate. Summary of the invention

[0007] The present invention provides a random access resource configuration and random access method and device, which are used to solve the problem that the existing random access resource configuration method and the corresponding random access method cannot reduce the waste of frequency band resources while improving the UE access success rate.

[0008] According to a first aspect of an embodiment of the present invention, a random access resource configuration method is provided, which is applied to a network side device, and the method includes:

[0009] Determine, according to the initial partial bandwidth BWP configuration information of the cell, a threshold value of the number of UEs corresponding to random access at the initial BWP when a preset random access success rate requirement is met;

[0010] The total number of UEs in the cell is compared with the UE number threshold, and according to the comparison result, it is determined whether to configure a random access resource dedicated to the connected state for the UEs in the cell.

[0011] Optionally, the determining, according to the comparison result, whether to configure a random access resource dedicated to a connected state for a UE in the cell includes:

[0012] When it is determined that the total number of the UEs is not less than the UE number threshold, configuring a random access resource dedicated to the connected state for the UEs in the cell, and indicating it to the corresponding UEs;

[0013] Otherwise, no random access resources dedicated to the connected state are configured for the UE in the cell, and the UE is instructed to perform random access on the initial BWP.

[0014] Optionally, configuring a random access resource dedicated to a connected state for a UE in a cell includes:

[0015] For BWPs outside the initial BWP, physical random access channel PRACH resources on the uplink UL BWP and a common search space on the downlink DL BWP are configured.

[0016] Optionally, configuring a random access resource dedicated to a connected state for a UE in a cell, and indicating it to a corresponding UE, includes:

[0017] The configured connection-state dedicated random access resources are indicated to the corresponding UE through radio resource control RRC signaling or broadcast messages.

[0018] Optionally, the total number of UEs in the cell is an estimated number of UEs in the cell, or is the number of UEs accessing the cell.

[0019] Optionally, configuring a random access resource dedicated to a connected state for a UE in a cell includes:

[0020] According to the total number of UEs in the cell, static connected state dedicated random access resources are configured for the UEs in the cell; or

[0021] When it is determined that a UE has accessed the cell, a random access resource dedicated to the connected state is dynamically configured for the accessed UE.

[0022] Optionally, when determining that the total number of UEs is not less than the UE number threshold, configuring a connected state dedicated random access resource for the UEs in the cell includes:

[0023] When it is determined that there is an accessed UE in the cell, a random access resource dedicated to the connected state is configured for the UE in the cell;

[0024] When it is determined that there is no accessed UE in the cell, the random access resources dedicated to the connected state are not configured for the UE in the cell, or the random access resources dedicated to the connected state configured for the UE in the cell are released.

[0025] Optionally, configuring a random access resource dedicated to a connected state for a UE in a cell includes:

[0026] configuring a fixed random access resource as a random access resource dedicated to the connection state; or

[0027] configuring currently unoccupied random access resources as random access resources dedicated to the connection state; or

[0028] The fixed random access resources are preferentially configured as the random access resources dedicated to the connection state, and when the fixed random access resources are insufficient, the currently unoccupied random access resources are configured as the random access resources dedicated to the connection state.

[0029] Optionally, after configuring a random access resource dedicated to a connected state for a UE in a cell and indicating it to a corresponding UE, the method further includes:

[0030] When it is determined that the success rate of random access of the currently connected UE is lower than a set threshold, a newly configured connected state dedicated random access resource is added for the UE in the cell.

[0031] Optionally, after configuring a random access resource dedicated to a connected state for a UE in a cell and indicating it to a corresponding UE, the method further includes:

[0032] After determining that the corresponding UE completes random access, instruct the corresponding UE to switch to the BWP before random access or other BWP for service data transmission, and the other BWP is a BWP other than the BWP before random access and the random access resource dedicated to the connection state.

[0033] According to a second aspect of an embodiment of the present invention, a random access method is provided, which is applied to a user terminal UE. The method includes:

[0034] When random access is triggered in the connected state, determine whether the network side configures random access resources dedicated to the connected state for the UE in the cell;

[0035] If so, random access is performed on the configured random access resources dedicated to the connection state.

[0036] Optionally, it also includes:

[0037] If the network side does not configure random access resources dedicated to the connected state for the UE in the cell, random access is performed on the initial BWP according to the instruction of the network side.

[0038] Optionally, the BWP corresponding to the random access resource dedicated to the connection state is configured with a physical random access channel PRACH resource on the uplink UL BWP and a common search space on the downlink DL BWP.

[0039] Optionally, it also includes:

[0040] The connection-state dedicated random access resources configured by the network side device are determined through radio resource control RRC signaling or broadcast messages.

[0041] Optionally, the connection-state-specific random access resource is a static connection-state-specific random access resource configured by the network side according to the total number of UEs in the cell; or is a connection-state-specific random access resource configured by the network side for the accessed UE in a dynamic manner.

[0042] Optionally, the connection-state dedicated random access resource is a fixed random access resource or a currently unoccupied random access resource.

[0043] Optionally, it also includes:

[0044] After completing the random access, switch to the BWP before the random access or other BWP for service data transmission according to the instruction of the network side, and the other BWP is the BWP other than the BWP before the random access and the random access resource dedicated to the connection state.

[0045] According to a third aspect of an embodiment of the present invention, a network side device is provided, including:

[0046] A parameter determination module, configured to determine, based on the initial partial bandwidth BWP configuration information of the cell, a threshold value of the number of UEs corresponding to random access at the initial BWP when a preset random access success rate requirement is met;

[0047] The resource configuration module is used to compare the total number of UEs in the cell with the UE number threshold, and determine whether to configure random access resources dedicated to the connected state for the UEs in the cell according to the comparison result.

[0048] According to a fourth aspect of an embodiment of the present invention, a user terminal UE is provided, including:

[0049] A resource determination module, used to determine whether the network side configures a random access resource dedicated to the connected state for the UE in the cell when random access is triggered in the connected state;

[0050] The random access module is used to perform random access on the configured random access resources dedicated to the connection state.

[0051] According to a fifth aspect of an embodiment of the present invention, a network side device is provided, including: a memory and a processor; wherein:

[0052] The memory is used to store computer programs;

[0053] The processor is used to read the program in the memory and execute:

[0054] Determine, according to the initial partial bandwidth BWP configuration information of the cell, a threshold value of the number of UEs corresponding to random access at the initial BWP when a preset random access success rate requirement is met;

[0055] The total number of UEs in the cell is compared with the UE number threshold, and according to the comparison result, it is determined whether to configure a random access resource dedicated to the connected state for the UEs in the cell.

[0056] According to a sixth aspect of an embodiment of the present invention, a user terminal UE is provided, including: a memory and a processor; wherein:

[0057] The memory is used to store computer programs;

[0058] The processor is used to read the program in the memory and execute:

[0059] When random access is triggered in the connected state, determine whether the network side configures random access resources dedicated to the connected state for the UE in the cell;

[0060] If so, random access is performed on the configured random access resources dedicated to the connection state.

[0061] The random access resource configuration and random access method and device provided by the present invention have the following beneficial effects:

[0062] The random access resource configuration and random access method and device provided by the present invention determine the UE number threshold that can ensure the random access success rate according to the initial BWP configuration information of the cell through the network side device, compare the total number of UEs in the cell with the UE number threshold, so as to determine whether to configure the random access resources dedicated to the connected state for the UEs in the cell, and can specify the dedicated resources for random access in the connected state for the UEs accessing the cell when the number of UEs is large, so as to achieve the effect of diverting the random access resources of the connected state UEs from the initial BWP. The problem of the existing random access resource configuration method and the corresponding random access method that cannot reduce the waste of frequency band resources while improving the UE access success rate is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0064] Figure 1 A schematic diagram of the architecture of a system for random access resource configuration and random access method application provided in an embodiment of the present invention;

[0065] Figure 2 A schematic diagram of a random access resource configuration method provided in an embodiment of the present invention;

[0066] Figure 3 A schematic diagram of a random access method provided in an embodiment of the present invention;

[0067] Figure 4 A schematic diagram of a random access resource configuration and a random access method provided in an embodiment of the present invention;

[0068] Figure 5 A schematic diagram of a network side device provided in an embodiment of the present invention;

[0069] Figure 6A schematic diagram of a user terminal UE provided in an embodiment of the present invention;

[0070] Figure 7 A schematic diagram of the structure of a network side device provided in an embodiment of the present invention;

[0071] Figure 8 A schematic diagram of the structure of a user terminal UE provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] In the embodiments of the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0074] For ease of understanding, the terms involved in the embodiments of the present invention are explained below:

[0075] BWP (Bandwidth Part): A part of the total bandwidth corresponding to a cell is called BWP. BWP is a group of continuous resource blocks corresponding to a specific parameter set on a specific transmission carrier. By configuring one or more BWPs for the user terminal UE through the network side equipment and instructing the UE which BWP to activate, bandwidth adaptation can be achieved to ensure that UE with low bandwidth capability can work in a large system bandwidth cell. Each BWP can correspond to different configurations. For example, the subcarrier spacing, cyclic prefix type, SSB (Synchronization Signal and PBCH block) period of each BWP can be configured differently to adapt to different services.

[0076] At present, the 5G NR system supports the configuration of multiple BWPs corresponding to one cell. For UEs in idle state, random access can only be completed on the initial BWP. For UEs in connected state, there are also many scenarios that require random access, such as: cell switching scenarios; uplink or downlink data arrival in the case of uplink desynchronization; UE does not have any PUCCH (Physical Up Control Channel) resource SR (Scheduling Request) processing, etc. In these scenarios, the UE does not necessarily perform random access on the initial BWP.

[0077] According to the current protocol, only one uplink and downlink BWP (activated BWP) is in working state in the 5G R15 version. If the currently activated BWP of the UE is the initial BWP, the connected UE needs to perform random access on the initial BWP together with the idle UE. Therefore, if a large number of UEs perform random access on the initial BWP, the success rate of random access will be greatly reduced, especially for large connection scenarios, where the challenges faced by random access concentrated on the initial BWP are more obvious.

[0078] According to the current protocol, if the currently activated BWP of the UE is not the initial BWP, the UE can access the currently activated BWP, but the premise is that the PRACH resources need to be configured on the currently activated UL BWP, and the corresponding common search space also needs to be configured on the corresponding DLBWP.

[0079] According to the provisions in the current protocol, if the BWP currently activated by the UE is not the initial BWP, and if the currently activated BWP is not configured with PRACH resources, the UE will still access on the initial BWP.

[0080] In order to improve the success rate of random access, all connected UEs can be diverted to other BWPs outside the initial BWP for random access. According to the above existing protocol, if all connected UEs are to be diverted, PRACH resources need to be configured on the UL BWP corresponding to all BWPs, and a common search space also needs to be configured on the corresponding DL BWP.

[0081] Although PRACH resources are configured on the UL BWP corresponding to the initial BWP and all other BWPs, and corresponding public search spaces are also configured on the corresponding DL BWPs, it is possible to shunt connected UEs whose currently activated BWP is not the initial BWP to the currently activated BWP for random access to a certain extent. However, configuring PRACH on the UL BWP corresponding to all BWPs and configuring public search spaces on the DL BWPs will be a huge waste of frequency band resources.

[0082] In view of this, an embodiment of the present invention proposes a random access resource configuration and a random access method, which configures dedicated random access resources for connected UEs and diverts the connected UEs to the dedicated random access resources for random access, thereby improving the random access success rate on the initial BWP. At the same time, there is no need to configure resources for all BWPs, which can maximize the utilization of frequency band resources and avoid resource waste.

[0083] Reference Figure 1 , is a schematic diagram of the architecture of a system for random access resource configuration and random access method application provided in an embodiment of the present invention. As shown in the figure, the system for random access resource configuration and random access method application provided in an embodiment of the present invention includes a network side device 101 and a user terminal 102.

[0084] The network side device 101 is used to determine, based on the initial partial bandwidth BWP configuration information of the cell, a UE number threshold corresponding to random access at the initial BWP when a preset random access success rate requirement is met; compare the total number of UEs in the cell with the UE number threshold, and determine whether to configure a random access resource dedicated to the connected state for the UE in the cell based on the comparison result.

[0085] The user terminal 102 is used to determine whether the network side configures a random access resource dedicated to the connected state for the UE in the cell when the random access is triggered in the connected state;

[0086] If so, random access is performed on the configured random access resources dedicated to the connection state.

[0087] In the embodiment of the present invention, the user terminal UE may specifically refer to an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a mobile station in a 5G network or a subscription device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0088] The network side device can be a next-generation base station (generation Node B, gNB) in a 5G system, a base station (Base Transceiver Station, BTS) in a Global System of Mobile communication (GSM) system or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (LTE) system, etc.

[0089] Figure 1 For the convenience of description, only one user terminal and one network-side device are exemplified. In an actual system, multiple terminals and network-side devices may coexist, which will not be described in detail here.

[0090] It should be noted that the above system architecture is only an example of the system architecture applicable to the embodiment of the present invention. Figure 1 The system architecture shown may also include other entities or some entities may be reduced.

[0091] Example 1

[0092] The embodiment of the present invention provides a random access resource configuration method, which is applied to a network side device. Figure 2 As shown, the method includes:

[0093] Step S201, determining, based on the initial partial bandwidth BWP configuration information of the cell, a threshold value of the number of UEs corresponding to random access in the initial BWP when a preset random access success rate requirement is met;

[0094] In the embodiment of the present invention, when establishing a cell, the network side device will configure the BWP information corresponding to the cell, including the initial BWP of the cell and configuration information of other BWPs.

[0095] When the network side device performs random access resource configuration, when determining that the preset random access success rate requirement is met according to the initial BWP configuration information of the cell, the UE number threshold corresponding to random access on the initial BWP is determined. Among them, the preset random access success rate requirement is: to ensure that the random access success rate corresponding to the initial BWP is not lower than the set success rate threshold.

[0096] In the embodiment of the present invention, when it is determined that the random access success rate corresponding to the initial BWP is the set success rate threshold, the number of UEs supported for access on the corresponding initial BWP is N. UE , when the preset random access success rate requirement is met, the UE number threshold corresponding to random access in the initial BWP is not greater than the N UE The setting value of UE It is also the maximum number of UEs corresponding to random access in the initial BWP when the preset random access success rate requirement is met.

[0097] In the embodiment of the present invention, the above N UE It can be determined through experiments or field tests, or estimated based on experience.

[0098] Step S202: compare the total number of UEs in the cell with the UE number threshold, and determine whether to configure connected state dedicated random access resources for the UEs in the cell according to the comparison result.

[0099] When the network side device determines that the preset random access success rate requirement is met, after the UE number threshold corresponding to the random access of the initial BWP is reached, the total number of UEs in the cell is compared with the UE number threshold.

[0100] When it is determined that the total number of the UEs is not less than the UE number threshold, a connection-state dedicated random access resource is configured for the UEs in the cell and the corresponding UE is indicated; otherwise, no connection-state dedicated random access resource is configured for the UEs in the cell, and the UE is indicated to perform random access on the initial BWP. The following is a detailed description.

[0101] In the embodiment of the present invention, the total number of UEs in a cell is the estimated number of UEs in the cell, or the number of UEs accessing the cell.

[0102] Specifically, when a cell is initially established, the number of UEs corresponding to the cell is estimated. The network-side device can estimate the number of UEs corresponding to the established cell by counting the daily users in the area covered by itself, and use the estimated number of UEs as the total number of UEs in the cell. The relevant data for the above statistics can be obtained from the corresponding operator. If the number of daily users in the area covered by the network-side device fluctuates greatly, a relatively accurate number of UEs in the cell may not be obtained based on the statistical results. At this time, it can be considered that the number of UEs in the cell cannot be estimated, and the number of UEs accessed in the current cell is used as the total number of UEs in the cell.

[0103] In the embodiment of the present invention, when the network side device determines that the total number of UEs is not less than the UE number threshold, when configuring the random access resources dedicated to the connected state for the UEs in the cell, any of the following methods is adopted:

[0104] Method 1

[0105] According to the total number of UEs in the cell, static connected-state dedicated random access resources are configured for the UEs in the cell.

[0106] When the above-mentioned network side device determines that the total number of UEs in the cell is not less than the UE number threshold, it configures random access resources dedicated to the connection state for all UEs accessing the cell, including UEs that have accessed before and UEs to be accessed later. All of them are configured with random access resources dedicated to the connection state, so that all UEs in the cell use the random access resources dedicated to the connection state configured by the network side device when performing random access in the subsequent connection state.

[0107] Method 2

[0108] When it is determined that a UE has accessed the cell, a random access resource dedicated to the connected state is dynamically configured for the accessed UE.

[0109] When the above-mentioned network side device determines that the total number of UEs in the cell is not less than the UE number threshold, it configures random access resources dedicated to the connection state for the UEs accessing the cell after the current moment, so that the UEs accessing the cell after the current moment use the random access resources dedicated to the connection state configured by the network side device when performing random access in the subsequent connection state, while the UEs accessing the cell before the current moment use the random access resources on the initial BWP when performing random access in the subsequent connection state.

[0110] In the above-mentioned method 1 or method 2, the network side device can adopt any of the following methods to select a random access resource from the BWP corresponding to the cell, and configure it as the above-mentioned random access resource dedicated to the connection state:

[0111] 1) configuring a fixed random access resource as a random access resource dedicated to the connection state;

[0112] The network side device selects a fixed random access resource in the BWP corresponding to the cell as a random access resource dedicated to the connected state. The fixed random access resource is only used for the random access process of the connected state UE. If the random access resource selected by the network side device is currently occupied, the UE occupying the random access resource can be switched to other unoccupied random access resources.

[0113] 2) configuring currently unoccupied random access resources as random access resources dedicated to the connection state;

[0114] The network side device selects a currently unoccupied random access resource in the BWP corresponding to the cell as a random access resource dedicated to the connected state.

[0115] 3) preferentially configuring fixed random access resources as the random access resources dedicated to the connection state, and when the fixed random access resources are insufficient, configuring currently unoccupied random access resources as the random access resources dedicated to the connection state.

[0116] The network-side device selects a fixed random access resource in the BWP corresponding to the cell as a random access resource dedicated to the connected state, and the fixed random access resource is only used for the random access process of the connected state UE. In the subsequent process, when the network-side device determines that the fixed random access resource cannot meet the needs of the connected state UE for random access, it means that the fixed random access resources are insufficient, and then selects a currently unoccupied random access resource in the BWP corresponding to the cell as a random access resource dedicated to the connected state. Among them, when the network-side device determines that the number of connected state UEs that can be supported by the fixed random access resources is less than the number of connected state UEs that currently need to perform random access when the pre-set random access success rate condition is met, it determines that the fixed random access resources are insufficient.

[0117] As an optional implementation, in an embodiment of the present invention, the network side device may configure one or more connection-state dedicated random access resources for UEs in a cell. If the network side device configures multiple connection-state dedicated random access resources, when it is determined that the success rate of random access of the current connection-state UE is lower than a set threshold, a newly configured connection-state dedicated random access resource is added for the UE in the cell.

[0118] The network side device may configure one or more random access resources for the UE in the cell according to the scale of the UE in the cell. When there are multiple random access resources configured, the corresponding configuration principle is: when the network side device determines that the success rate of random access of the connected UE on a currently configured random access resource is lower than the set threshold, a newly configured connected state dedicated random access resource is added for the UE in the cell. Each connected state UE performs random access only on one connected state dedicated random access resource.

[0119] In the process of configuring the random access resources dedicated to the connected state for the UE in the cell, when it is determined that there is an accessed UE in the cell, the network side device configures the random access resources dedicated to the connected state for the UE in the cell; when it is determined that there is no accessed UE in the cell, the random access resources dedicated to the connected state are not configured for the UE in the cell, or the random access resources dedicated to the connected state configured for the UE in the cell are released.

[0120] In an embodiment of the present invention, the random access resources dedicated to the connection state are divided into two parts: uplink UL random access resources and downlink DL random access resources. Therefore, when the network side device configures the random access resources dedicated to the connection state for the UE in the cell, for the BWP outside the initial BWP, the physical random access channel PRACH resources on the uplink UL BWP and the common search space on the downlink DL BWP are respectively configured.

[0121] In the embodiment of the present invention, the random access resources dedicated to the connection state configured by the network side device for the UE in the cell may overlap with the resources corresponding to one or more BWPs in the BWP corresponding to the cell, or may overlap with the resources corresponding to one or more BWPs in the BWP corresponding to the cell except the initial BWP. In this case, after configuring the random access resources dedicated to the connection state, the network side device needs to configure that other services are not allowed to occupy the overlapping resources, and other services are services other than the random access services of the UE in the connection state.

[0122] After the network side device configures the connection-state dedicated random access resources for the UE in the cell, the configured connection-state dedicated random access resources can be indicated to the corresponding UE through radio resource control RRC signaling or broadcast messages.

[0123] In an embodiment of the present invention, after the network side device configures a random access resource dedicated to the connection state for the UE in the cell and instructs the corresponding UE, the corresponding UE performs random access on the configured random access resource dedicated to the connection state when in the connection state. After the access is completed, the network side device can determine that the UE has completed the random access in the connection state, and instruct the corresponding UE to switch to the BWP before the random access or other BWP for service data transmission, and the other BWP is the BWP other than the BWP before the random access and the random access resource dedicated to the connection state. Among them, the network side device instructs the corresponding UE to switch to the BWP before the random access or other BWP for service data transmission through RRC signaling or MAC (Media Access Control) entity.

[0124] In an embodiment of the present invention, except for the random access resources dedicated to the connected state, for other BWPs other than the initial BWP of the cell, the network side device no longer configures the resources required for random access. Therefore, when a connected state UE performs random access, it is performed on the random access resources dedicated to the connected state configured by the network side device, and when a non-connected state UE performs random access, it is performed on the initial BWP.

[0125] In the embodiment of the present invention, the network side device may further configure the random access resources dedicated to the connection state in a frequency band with relatively good transmission performance, which can further improve the success rate of random access.

[0126] The embodiment of the present invention further provides a random access method, which is applied to a user terminal UE. Figure 3 As shown, the method includes:

[0127] Step S301, when random access is triggered in the connected state, determining whether the network side configures a random access resource dedicated to the connected state for the UE in the cell;

[0128] Step S302: If yes, random access is performed on the configured random access resources dedicated to the connection state.

[0129] In an embodiment of the present invention, when a UE triggers random access, if it is determined that it is currently in an idle state, random access is initiated on the initial BWP of the corresponding cell; if it is determined that it is currently in a connected state, it is further determined whether the network side configures random access resources dedicated to the connected state for the UE in the cell.

[0130] If the UE receives a connection-state-specific random access resource indicated by a network-side device, it is determined that the network side configures a connection-state-specific random access resource for the UE in the cell, and performs random access on the configured connection-state-specific random access resource. If the UE does not receive a connection-state-specific random access resource indicated by a network-side device, it is determined that the network side does not configure a connection-state-specific random access resource for the UE in the cell, and then performs random access on the initial BWP according to the instruction of the network side.

[0131] In the embodiment of the present invention, the UE determines the connection-state dedicated random access resources configured by the network side device through radio resource control RRC signaling or broadcast messages. The UE receives the connection-state dedicated random access resources indicated by the network side device through radio resource control RRC signaling or broadcast messages for subsequent connection-state random access.

[0132] The connection-state-specific random access resources configured by the network side device determined by the above UE are static connection-state-specific random access resources configured by the network side according to the total number of UEs in the cell; or are connection-state-specific random access resources configured by the network side dynamically for the accessed UE.

[0133] In an embodiment of the present invention, the UE receives an indication from a network side device and determines a random access resource dedicated to a connection state indicated by the network side device, wherein the network side device configures the random access resource dedicated to a connection state corresponding to the UE using the above-mentioned method 1 or method 2. In specific implementation, the same method as the above-mentioned embodiment is used and will not be described in detail here.

[0134] In this embodiment, the above-mentioned random access resource dedicated to the connection state is selected by the network side device from the BWP corresponding to the cell through any of the above-mentioned methods 1) to 3) and configured as the random access resource dedicated to the connection state, and then indicated to the UE. Therefore, the above-mentioned random access resource dedicated to the connection state is a fixed random access resource or a random access resource that is not currently occupied.

[0135] When the network side device selects a random access resource from the BWP corresponding to the cell and configures it as a random access resource dedicated to the connected state, the same method as the above embodiment is adopted, which will not be described in detail here.

[0136] In an embodiment of the present invention, the connection-state dedicated random access resources indicated by the network side device received by the UE are divided into two parts: uplink UL random access resources and downlink DL random access resources. They are the configurations performed by the network side device on the BWP outside the initial BWP respectively. Therefore, the BWP corresponding to the connection-state dedicated random access resources received by the UE is configured with the physical random access channel PRACH resources on the uplink UL BWP and the common search space on the downlink DL BWP.

[0137] After the UE triggers random access, if it determines that it is currently in a connected state, it performs random access on the random access resources dedicated to the connected state indicated by the network side device. If no instruction from the network side is received, it can perform random access on the initial BWP of the cell.

[0138] After the above-mentioned UE triggers random access in the connected state and completes random access on the random access resources dedicated to the connected state indicated by the network side device, it switches to the BWP before random access or other BWP for service data transmission according to the instruction of the network side. The other BWP is the BWP other than the BWP before random access and the random access resources dedicated to the connected state.

[0139] In the embodiment of the present invention, only the connected state UE performs random access on the connected state dedicated random access resources indicated by the network side device. Therefore, the service data transmission after the UE performs random access in the connected state is performed on the non-connected state dedicated random access resources. Specifically, the UE receives the instruction of the network side device and switches to the BWP before random access or other BWP for service data transmission according to the instruction, thereby reducing the utilization rate of the connected state dedicated random access resources and improving the success rate of the connected state UE random access.

[0140] The random access resource configuration and random access method provided in the embodiment of the present invention, when the number of UEs in a cell is too large, the network side device configures the connected state dedicated random access resources for the UEs in the cell, and the connected state UEs perform random access on the configured connected state dedicated random access resources, which can shunt the connected state UEs to the dedicated random access resources for random access, thereby improving the success rate of random access on the initial BWP, and at the same time, there is no need to configure resources on all BWPs in the cell, thus avoiding unnecessary waste of resources. In addition, the connected state dedicated random access resources configured for the UEs in the cell are configured in a frequency band with relatively good transmission performance, further improving the success rate of random access of the UEs in the cell.

[0141] The system architecture and business scenarios described in the embodiments of the present invention are intended to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. A person of ordinary skill in the art can appreciate that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

[0142] Example 2

[0143] Reference Figure 4 , is a flow chart of a random access resource configuration and a random access method provided by an embodiment of the present invention. As shown in the figure, the flow of the method includes:

[0144] Step S401: The network side device determines the UE number threshold N when the random access success rate is guaranteed to be the set success rate threshold on the initial BWP according to the initial partial bandwidth BWP configuration information of the cell. UE ;

[0145] In step S402, the network side device determines whether the UE number threshold N corresponding to the cell can be estimated. If so, execute step S403; otherwise, execute step S406.

[0146] In step S403, the network side device determines whether the estimated number of UEs corresponding to the cell is greater than the UE number threshold, and if so, executes step S404, otherwise, executes step S405.

[0147] In step S404, the network side device configures random access resources dedicated to the connected state for all UEs accessing the cell, and executes step S408.

[0148] Step S405: The network side device instructs the UE to perform random access on the initial BWP when in the connected state, and executes step S411.

[0149] Step S406, the network side device determines whether the number of UEs currently accessing the cell is greater than the UE number threshold, if so, execute step S407, otherwise, execute step S405.

[0150] Step S407, the network side device configures a random access resource dedicated to the connected state for the UE accessing the cell after the current time;

[0151] Step S408, the network side device indicates the configured connection state dedicated random access resource to the corresponding UE;

[0152] Step S409, when the UE triggers random access, it determines whether it is currently in a connected state and receives a random access resource dedicated to the connected state indicated by the network side device. If so, execute step S410, otherwise, execute step S411.

[0153] In step S410, the UE performs random access on the random access resources dedicated to the connection state indicated by the network side device, and executes step S412.

[0154] Step S411, the UE performs random access on the initial BWP according to the protocol provisions or the instructions of the network side device;

[0155] When the UE performs random access in the idle state, random access is performed on the initial BWP according to the protocol.

[0156] When the UE performs random access in a connected state, it performs random access on the initial BWP according to the instruction of the network side device and executes step S412.

[0157] According to the protocol, an idle UE can only perform random access on the initial BWP.

[0158] Step S412: After the network side device determines that the UE's connected state random access is completed, it instructs the UE to switch to the BWP before the random access or other BWP for service data transmission;

[0159] Step S413: After completing random access, the UE receives an instruction from the network side device and switches to the BWP before random access or other BWP for service data transmission according to the instruction.

[0160] For the specific implementation of the above steps, reference may be made to the above-mentioned specific embodiments of random access resource configuration and random access method, which will not be repeated here.

[0161] It should be noted that the above method flow is only an example of the method flow applicable to the embodiment of the present invention. Figure 4 The method flow shown may also be supplemented with other steps, or some steps may be reduced.

[0162] Example 3

[0163] The above is a description of a random access resource configuration and a random access method in the present invention. The following is a description of a device that executes the random access resource configuration and the random access method.

[0164] See also Figure 5 , an embodiment of the present invention provides a network side device, including:

[0165] The parameter determination module 501 is used to determine, according to the initial partial bandwidth BWP configuration information of the cell, a threshold value of the number of UEs corresponding to random access at the initial BWP when a preset random access success rate requirement is met;

[0166] The resource configuration module 502 is used to compare the total number of UEs in the cell with the UE number threshold, and determine whether to configure connected state dedicated random access resources for the UEs in the cell according to the comparison result.

[0167] Optionally, the resource configuration module determines, according to the comparison result, whether to configure a random access resource dedicated to a connected state for a UE in the cell, including:

[0168] When it is determined that the total number of the UEs is not less than the UE number threshold, configuring a random access resource dedicated to the connected state for the UEs in the cell, and indicating it to the corresponding UEs;

[0169] Otherwise, no random access resources dedicated to the connected state are configured for the UE in the cell, and the UE is instructed to perform random access on the initial BWP.

[0170] Optionally, the resource configuration module configures a random access resource dedicated to a connected state for a UE in a cell, including:

[0171] For BWPs outside the initial BWP, physical random access channel PRACH resources on the uplink UL BWP and a common search space on the downlink DL BWP are configured.

[0172] Optionally, the resource configuration module configures a random access resource dedicated to a connected state for a UE in a cell, and indicates it to a corresponding UE, including:

[0173] The configured connection-state dedicated random access resources are indicated to the corresponding UE through radio resource control RRC signaling or broadcast messages.

[0174] Optionally, the total number of UEs in the cell is an estimated number of UEs in the cell, or is the number of UEs accessing the cell.

[0175] Optionally, the resource configuration module configures a random access resource dedicated to a connected state for a UE in a cell, including:

[0176] According to the total number of UEs in the cell, static connected state dedicated random access resources are configured for the UEs in the cell; or

[0177] When it is determined that a UE has accessed the cell, a random access resource dedicated to the connected state is dynamically configured for the accessed UE.

[0178] Optionally, when the resource configuration module determines that the total number of the UEs is not less than the UE number threshold, configuring a connected state dedicated random access resource for the UEs in the cell includes:

[0179] When it is determined that there is an accessed UE in the cell, a random access resource dedicated to the connected state is configured for the UE in the cell;

[0180] When it is determined that there is no accessed UE in the cell, the random access resources dedicated to the connected state are not configured for the UE in the cell, or the random access resources dedicated to the connected state configured for the UE in the cell are released.

[0181] Optionally, the resource configuration module configures a random access resource dedicated to a connected state for a UE in a cell, including:

[0182] configuring a fixed random access resource as a random access resource dedicated to the connection state; or

[0183] configuring currently unoccupied random access resources as random access resources dedicated to the connection state; or

[0184] The fixed random access resources are preferentially configured as the random access resources dedicated to the connection state, and when the fixed random access resources are insufficient, the currently unoccupied random access resources are configured as the random access resources dedicated to the connection state.

[0185] Optionally, after the resource configuration module configures a random access resource dedicated to a connected state for a UE in a cell and indicates it to a corresponding UE, it is further used to:

[0186] When it is determined that the success rate of random access of the currently connected UE is lower than a set threshold, a newly configured connected state dedicated random access resource is added for the UE in the cell.

[0187] Optionally, after the resource configuration module configures a random access resource dedicated to a connected state for a UE in a cell and indicates it to a corresponding UE, it is further used to:

[0188] After determining that the corresponding UE completes random access, instruct the corresponding UE to switch to the BWP before random access or other BWP for service data transmission, and the other BWP is a BWP other than the BWP before random access and the random access resource dedicated to the connection state.

[0189] The above-mentioned network side device provided in the embodiment of the present invention and the random access resource configuration method provided in the above-mentioned embodiment 1 of the present invention belong to the same inventive concept. The various implementation methods of the random access resource configuration method provided in the above-mentioned embodiment 1 can be applied to the network side device in this embodiment for implementation, and will not be repeated here.

[0190] See also Figure 6 The embodiment of the present invention further provides a user terminal UE, including:

[0191] The resource determination module 601 is used to determine whether the network side configures a random access resource dedicated to the connected state for the UE in the cell when the random access is triggered in the connected state;

[0192] The random access module 602 is configured to perform random access on the configured random access resource dedicated to the connection state.

[0193] Optionally, the resource determination module is further used to:

[0194] If the network side does not configure random access resources dedicated to the connected state for the UE in the cell, random access is performed on the initial BWP according to the instruction of the network side.

[0195] Optionally, the BWP corresponding to the random access resource dedicated to the connection state is configured with a physical random access channel PRACH resource on the uplink UL BWP and a common search space on the downlink DL BWP.

[0196] Optionally, the resource determination module is further used to:

[0197] The connection-state dedicated random access resources configured by the network side device are determined through radio resource control RRC signaling or broadcast messages.

[0198] Optionally, the connection-state-specific random access resource is a static connection-state-specific random access resource configured by the network side according to the total number of UEs in the cell; or is a connection-state-specific random access resource configured by the network side for the accessed UE in a dynamic manner.

[0199] Optionally, the connection-state dedicated random access resource is a fixed random access resource or a currently unoccupied random access resource.

[0200] Optionally, the random access module is further used to:

[0201] After completing the random access, switch to the BWP before the random access or other BWP for service data transmission according to the instruction of the network side, and the other BWP is the BWP other than the BWP before the random access and the random access resource dedicated to the connection state.

[0202] The above-mentioned user terminal UE provided in the embodiment of the present invention and the random access method provided in the above-mentioned embodiment 1 of the present invention belong to the same inventive concept. The various implementation methods of the random access method provided in the above-mentioned embodiment 1 can be applied to the user terminal UE in this embodiment for implementation, and will not be repeated here.

[0203] The user terminal UE and the network side device in the embodiment of the present application are described above from the perspective of modular functional entities. The user terminal UE and the network side device in the embodiment of the present application are described below from the perspective of hardware processing.

[0204] Example 4

[0205] See also Figure 7 , another embodiment of the network side device in the embodiment of the present application includes:

[0206] Processor 700 , memory 701 , transceiver 702 , and bus interface 703 .

[0207] The processor 700 is responsible for managing the bus architecture and general processing, and the memory 701 can store data used by the processor 700 when performing operations. The transceiver 702 is used to receive and send data under the control of the processor 700.

[0208] The bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 700 and memory represented by memory 701. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 701 may store data used by the processor 700 when performing operations.

[0209] The process disclosed in the embodiment of the present invention can be applied to the processor 700, or implemented by the processor 700. In the implementation process, each step of the signal processing process can be completed by the hardware integrated logic circuit or software instructions in the processor 700. The processor 700 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware processor to be executed, or a combination of hardware and software modules in the processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 701, and the processor 700 reads the information in the memory 701 and completes the steps of the signal processing process in combination with its hardware.

[0210] Specifically, the processor 700 is used to read the program in the memory 701 and execute:

[0211] Determine, according to the initial partial bandwidth BWP configuration information of the cell, a threshold value of the number of UEs corresponding to random access at the initial BWP when a preset random access success rate requirement is met;

[0212] The total number of UEs in the cell is compared with the UE number threshold, and according to the comparison result, it is determined whether to configure a random access resource dedicated to the connected state for the UEs in the cell.

[0213] Optionally, the processor determines, according to the comparison result, whether to configure a random access resource dedicated to a connected state for a UE in the cell, including:

[0214] When it is determined that the total number of the UEs is not less than the UE number threshold, configuring a random access resource dedicated to the connected state for the UEs in the cell, and indicating it to the corresponding UEs;

[0215] Otherwise, no random access resources dedicated to the connected state are configured for the UE in the cell, and the UE is instructed to perform random access on the initial BWP.

[0216] Optionally, the processor configures a random access resource dedicated to a connected state for a UE in a cell, including:

[0217] For BWPs outside the initial BWP, physical random access channel PRACH resources on the uplink UL BWP and a common search space on the downlink DL BWP are configured.

[0218] Optionally, the processor configures a random access resource dedicated to a connected state for a UE in a cell, and indicates the resource to the corresponding UE, including:

[0219] The configured connection-state dedicated random access resources are indicated to the corresponding UE through radio resource control RRC signaling or broadcast messages.

[0220] Optionally, the total number of UEs in the cell is an estimated number of UEs in the cell, or is the number of UEs accessing the cell.

[0221] Optionally, the processor configures a random access resource dedicated to a connected state for a UE in a cell, including:

[0222] According to the total number of UEs in the cell, static connected state dedicated random access resources are configured for the UEs in the cell; or

[0223] When it is determined that a UE has accessed the cell, a random access resource dedicated to the connected state is dynamically configured for the accessed UE.

[0224] Optionally, when the processor determines that the total number of the UEs is not less than the UE number threshold, configuring a random access resource dedicated to a connected state for the UEs in the cell includes:

[0225] When it is determined that there is an accessed UE in the cell, a random access resource dedicated to the connected state is configured for the UE in the cell;

[0226] When it is determined that there is no accessed UE in the cell, the random access resources dedicated to the connected state are not configured for the UE in the cell, or the random access resources dedicated to the connected state configured for the UE in the cell are released.

[0227] Optionally, the processor configures a random access resource dedicated to a connected state for a UE in a cell, including:

[0228] configuring a fixed random access resource as a random access resource dedicated to the connection state; or

[0229] configuring currently unoccupied random access resources as random access resources dedicated to the connection state; or

[0230] The fixed random access resources are preferentially configured as the random access resources dedicated to the connection state, and when the fixed random access resources are insufficient, the currently unoccupied random access resources are configured as the random access resources dedicated to the connection state.

[0231] Optionally, after the processor configures a random access resource dedicated to a connected state for a UE in a cell and indicates it to a corresponding UE, it is further configured to:

[0232] When it is determined that the success rate of random access of the currently connected UE is lower than a set threshold, a newly configured connected state dedicated random access resource is added for the UE in the cell.

[0233] Optionally, after the processor configures a random access resource dedicated to a connected state for a UE in a cell and indicates it to a corresponding UE, it is further configured to:

[0234] After determining that the corresponding UE completes random access, instruct the corresponding UE to switch to the BWP before random access or other BWP for service data transmission, and the other BWP is a BWP other than the BWP before random access and the random access resource dedicated to the connection state.

[0235] The above-mentioned network side device provided in the embodiment of the present invention and the random access resource configuration method provided in the above-mentioned embodiment 1 of the present invention belong to the same inventive concept. The various implementation methods of the random access resource configuration method provided in the above-mentioned embodiment 1 can be applied to the network side device in this embodiment for implementation, and will not be repeated here.

[0236] See also Figure 8 Another embodiment of the user terminal UE in the embodiment of the present application includes:

[0237] Processor 800 , memory 801 , transceiver 802 , and bus interface 803 .

[0238] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 801 can store data used by the processor 800 when performing operations. The transceiver 802 is used to receive and send data under the control of the processor 800.

[0239] The bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 800 and memory represented by memory 801. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 801 may store data used by the processor 800 when performing operations.

[0240] The process disclosed in the embodiment of the present invention can be applied to the processor 800, or implemented by the processor 800. In the implementation process, each step of the signal processing process can be completed by the hardware integrated logic circuit or software instructions in the processor 800. The processor 800 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware processor to be executed, or the hardware and software modules in the processor can be combined and executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 801, and the processor 800 reads the information in the memory 801 and completes the steps of the signal processing process in combination with its hardware.

[0241] Specifically, the processor 800 is used to read the program in the memory 801 and execute:

[0242] When random access is triggered in the connected state, determine whether the network side configures random access resources dedicated to the connected state for the UE in the cell;

[0243] If so, random access is performed on the configured random access resources dedicated to the connection state.

[0244] Optionally, the processor is further configured to:

[0245] If the network side does not configure random access resources dedicated to the connected state for the UE in the cell, random access is performed on the initial BWP according to the instruction of the network side.

[0246] Optionally, the BWP corresponding to the random access resource dedicated to the connection state is configured with a physical random access channel PRACH resource on the uplink UL BWP and a common search space on the downlink DL BWP.

[0247] Optionally, the processor is further configured to:

[0248] The connection-state dedicated random access resources configured by the network side device are determined through radio resource control RRC signaling or broadcast messages.

[0249] Optionally, the connection-state-specific random access resource is a static connection-state-specific random access resource configured by the network side according to the total number of UEs in the cell; or is a connection-state-specific random access resource configured by the network side for the accessed UE in a dynamic manner.

[0250] Optionally, the connection-state dedicated random access resource is a fixed random access resource or a currently unoccupied random access resource.

[0251] Optionally, the processor is further configured to:

[0252] After completing the random access, switch to the BWP before the random access or other BWP for service data transmission according to the instruction of the network side, and the other BWP is the BWP other than the BWP before the random access and the random access resource dedicated to the connection state.

[0253] The above-mentioned user terminal UE provided in the embodiment of the present invention and the random access method provided in the above-mentioned embodiment 1 of the present invention belong to the same inventive concept. The various implementation methods of the random access method provided in the above-mentioned embodiment 1 can be applied to the user terminal UE in this embodiment for implementation, and will not be repeated here.

[0254] An embodiment of the present invention further provides a computer-readable storage medium, comprising instructions, which, when executed on a computer, enables the computer to execute the random access configuration and random access method provided in the above embodiments.

[0255] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and modules can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0256] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0257] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0258] In addition, each functional module in each embodiment of the present application can be integrated into a processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The above-mentioned integrated module can be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium.

[0259] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0260] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, a computer, a server, or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server, or data center. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integrations. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

[0261] The technical solution provided by the present application is introduced in detail above. The principles and implementation methods of the present application are explained by using specific examples in the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

[0262] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0263] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0264] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0265] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0266] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A random access resource configuration method, applied to a network side device, characterized in that: include: Determine, according to the initial partial bandwidth BWP configuration information of the cell, a threshold value of the number of UEs corresponding to random access at the initial BWP when a preset random access success rate requirement is met; The total number of UEs in the cell is compared with the UE number threshold, and according to the comparison result, it is determined whether to configure a random access resource dedicated to the connected state for the UEs in the cell.

2. The method according to claim 1, characterized in that The determining, according to the comparison result, whether to configure a random access resource dedicated to a connected state for the UE in the cell includes: When it is determined that the total number of the UEs is not less than the UE number threshold, configuring a random access resource dedicated to the connected state for the UEs in the cell, and indicating it to the corresponding UEs; Otherwise, no random access resources dedicated to the connected state are configured for the UE in the cell, and the UE is instructed to perform random access on the initial BWP.

3. The method according to claim 2, characterized in that The configuring of a random access resource dedicated to a connected state for a UE in a cell includes: For BWPs outside the initial BWP, physical random access channel PRACH resources on the uplink UL BWP and a common search space on the downlink DL BWP are configured.

4. The method according to claim 2, characterized in that: The configuring of a random access resource dedicated to a connected state for a UE in a cell and indicating it to a corresponding UE includes: The configured connection-state dedicated random access resources are indicated to the corresponding UE through radio resource control RRC signaling or broadcast messages.

5. The method according to claim 1 or 2, characterized in that: The total number of UEs in the cell is the estimated number of UEs in the cell, or the number of UEs accessing the cell.

6. The method according to claim 2, characterized in that The configuring of a random access resource dedicated to a connected state for a UE in a cell includes: According to the total number of UEs in the cell, static connected state dedicated random access resources are configured for the UEs in the cell; or When it is determined that a UE has accessed the cell, a random access resource dedicated to the connected state is dynamically configured for the accessed UE.

7. The method according to claim 2, characterized in that When determining that the total number of UEs is not less than the UE number threshold, configuring a connected state dedicated random access resource for the UEs in the cell includes: When it is determined that there is an accessed UE in the cell, a random access resource dedicated to the connected state is configured for the UE in the cell; When it is determined that there is no accessed UE in the cell, the random access resources dedicated to the connected state are not configured for the UE in the cell, or the random access resources dedicated to the connected state configured for the UE in the cell are released.

8. The method according to claim 2, characterized in that: The configuring of a random access resource dedicated to a connected state for a UE in a cell includes: configuring a fixed random access resource as a random access resource dedicated to the connection state; or configuring currently unoccupied random access resources as random access resources dedicated to the connection state; or The fixed random access resources are preferentially configured as the random access resources dedicated to the connection state, and when the fixed random access resources are insufficient, the currently unoccupied random access resources are configured as the random access resources dedicated to the connection state.

9. The method according to claim 2, characterized in that: After configuring the random access resource dedicated to the connected state for the UE in the cell and indicating it to the corresponding UE, the method further includes: When it is determined that the success rate of random access of the currently connected UE is lower than a set threshold, a newly configured connected state dedicated random access resource is added for the UE in the cell.

10. The method according to claim 1, characterized in that After configuring the random access resource dedicated to the connected state for the UE in the cell and indicating it to the corresponding UE, the method further includes: After determining that the corresponding UE completes random access, instruct the corresponding UE to switch to the BWP before random access or other BWP for service data transmission, and the other BWP is a BWP other than the BWP before random access and the random access resource dedicated to the connection state.

11. A random access method, applied to a user terminal UE, characterized in that: include: When random access is triggered in a connected state, determining whether the network side configures a random access resource dedicated to the connected state for the UE in the cell, wherein the network side determines, based on the initial partial bandwidth BWP configuration information of the cell, a UE number threshold corresponding to random access at the initial BWP when a preset random access success rate requirement is met; comparing the total number of UEs in the cell with the UE number threshold, and determining, based on the comparison result, whether to configure a random access resource dedicated to the connected state for the UE in the cell; If so, random access is performed on the configured random access resources dedicated to the connection state.

12. The method according to claim 11, characterized in that Also includes: If the network side does not configure random access resources dedicated to the connected state for the UE in the cell, random access is performed on the initial BWP according to the instruction of the network side.

13. The method according to claim 11, characterized in that The BWP corresponding to the random access resource dedicated to the connection state is configured with a physical random access channel PRACH resource on the uplink UL BWP and a common search space on the downlink DL BWP.

14. The method according to claim 11, characterized in that Also includes: The connection-state dedicated random access resources configured by the network side device are determined through radio resource control RRC signaling or broadcast messages.

15. The method according to claim 11, characterized in that The connection-state dedicated random access resource is a static connection-state dedicated random access resource configured by the network side according to the total number of UEs in the cell; or is a connection-state dedicated random access resource configured by the network side for the accessed UE in a dynamic manner.

16. The method according to claim 11, characterized in that The random access resource dedicated to the connection state is a fixed random access resource or a random access resource that is not currently occupied.

17. The method according to claim 11, characterized in that Also includes: After completing the random access, switch to the BWP before the random access or other BWP for service data transmission according to the instruction of the network side, and the other BWP is the BWP other than the BWP before the random access and the random access resource dedicated to the connection state.

18. A network side device, characterized in that: include: Memory and processor; Wherein, the memory is used to store computer programs; The processor is used to read the program in the memory and execute the steps of any one of the methods according to claims 1 to 10.

19. A user terminal UE, characterized in that: include: Memory and processor; Wherein, the memory is used to store computer programs; The processor is used to read the program in the memory and execute the steps of any one of the methods according to claims 11 to 17.

20. A network side device, characterized in that: include: A parameter determination module, configured to determine, based on the initial partial bandwidth BWP configuration information of the cell, a threshold value of the number of UEs corresponding to random access at the initial BWP when a preset random access success rate requirement is met; The resource configuration module is used to compare the total number of UEs in the cell with the UE number threshold, and determine whether to configure random access resources dedicated to the connected state for the UEs in the cell according to the comparison result.

21. A user terminal UE, characterized in that: include: A resource determination module, configured to determine whether the network side configures a random access resource dedicated to the connection state for the UE in the cell when random access is triggered in the connection state, wherein the network side determines, based on the initial partial bandwidth BWP configuration information of the cell, a UE number threshold corresponding to random access at the initial BWP when a preset random access success rate requirement is met; compare the total number of UEs in the cell with the UE number threshold, and determine whether to configure a random access resource dedicated to the connection state for the UE in the cell according to the comparison result; The random access module is used to perform random access on the configured random access resources dedicated to the connection state.

22. A computer program medium, characterized in that A computer program is stored thereon, characterized in that when the program is executed by a processor, the steps of the method according to any one of claims 1 to 10 are implemented, or the steps of the method according to any one of claims 11 to 17 are implemented.

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