Physical random access channel resource determination method and apparatus, and physical random access channel resource configuration method and apparatus

Abstract

The present application provides a physical random access channel (PRACH) resource determination method and apparatus, and a PRACH resource configuration method and apparatus. The PRACH resource determination method comprises: receiving first signaling; if the first signaling carries a first index, determining a first resource on the basis of the first index, and using the first resource to perform contention access, and when second signaling is received, switching to use a second resource to perform contention access; if the first signaling carries a third index and PRACH resource configuration indication information, decoding the third index on the basis of the PRACH resource configuration indication information, and if the decoding result comprises the second resource, using the second resource to perform contention access; and if the first signaling carries a fourth index, determining the second resource on the basis of the fourth index, and using the second resource to perform contention access, wherein the second resource is updated by means of the second signaling. The present application allows for configuration or selection of PRACH resources of UEs other than a legacy UE, thereby realizing network energy saving.

Description

Physical random access channel resource determination method, configuration method and device

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on April 3, 2024, with application number 202410403765.3 and application name “Physical Random Access Channel Resource Determination Method, Configuration Method and Device,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a method for determining and configuring physical random access channel resources, and a device. Background Art

[0003] Energy consumption is a key metric for operators in network energy conservation research. The vast majority of energy consumption in mobile networks comes from the radio access network. Currently, fifth-generation mobile communication technology (5G) networks consume approximately two to three times as much energy as fourth-generation mobile communication technology (4G). Therefore, research on energy-saving technologies for 5G networks is urgent.

[0004] In related technologies, a user equipment (UE) obtains the specific configuration of a random access opportunity (RACH Occasion, RO) by decoding the system information block (SIB) signaling sent by the base station in the current cell, and initiates contention-based random access to the currently located cell.

[0005] However, the related art cannot configure or select PRACH resources for UEs other than legacy UEs, and thus cannot achieve network energy saving. Summary of the Invention

[0006] The present application provides a method for determining, configuring, and apparatus for physical random access channel resources, which solves the technical problem in related technologies of being unable to configure or select PRACH resources for UEs other than legacy UEs, thereby failing to achieve network energy saving.

[0007] In a first aspect, the present application provides a method for determining physical random access channel resources, applied to a terminal, the method comprising:

[0008] receiving a first signaling;

[0009] If the first signaling carries a first index, determine a first resource according to the first index, and use the first resource for competitive access; upon receiving the second signaling, switch to using a second resource for competitive access, where the second resource is determined according to a second index carried in the second signaling;

[0010] If the first signaling carries a third index and physical random access channel (PRACH) resource configuration indication information, decoding the third index according to the PRACH resource configuration indication information, and if the decoded result contains a second resource, using the second resource for contention access;

[0011] If the first signaling carries a fourth index, determining a second resource according to the fourth index, and using the second resource for contention access, where the fourth index includes the first index and the second index;

[0012] The second resource is updated through the second signaling.

[0013] In an embodiment of the present application, the target terminal determines to use resources that can achieve energy saving, i.e., the second resource, through the index carried by the first signaling, thereby configuring additional RO resources for the target terminal (here referring to UE other than legacy UE, such as user terminals applicable to the Release 19 standard, i.e., R-19UE) without affecting the legacy UE, so that network side devices (e.g., base stations) have more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0014] In some embodiments, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0015] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0016] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling, and subsequent updates of the second resources can be based on the second signaling carrying the index for determining the second resource and / or PRACH resource configuration indication information to achieve rapid updates of the second resources.

[0017] In some embodiments, the first resource is configured by SIB1, and the first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE;

[0018] The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

[0019] In some embodiments, determining the first resource according to the first index includes:

[0020] Decoding the first index according to the first index table to determine the first resource;

[0021] The first index table is an index table used by legacy UEs; the first resource is a long-period RO resource, which is used to indicate an RO resource with a period longer than that configured when both the target terminal and the legacy UE exist.

[0022] In the embodiment of the present application, the first resource determined by the first index is a PRACH resource with a long period RO (resource) (such as 160ms), which ensures that the initial access process of the first terminal (such as a legacy UE) is not affected.

[0023] In some embodiments, upon receiving the second signaling, switching to use the second resource for contention access includes:

[0024] Upon receiving the second signaling, decoding the second index carried in the second signaling according to the second index table to obtain the second resource;

[0025] Switching the first resource and using the second resource for contention access;

[0026] The second index table adopts a more centralized RO resource configuration, and the more centralized RO resource configuration is used to indicate that the distribution of RO resources in the subframe is more centralized.

[0027] In an embodiment of the present application, the second resource determined by the second index can be a short-cycle or long-cycle PRACH cycle (e.g., 10ms, 20ms, 40ms, 80ms, 160ms), which can ensure a flexible initial access process for the second terminal; the second resource can also be a PRACH resource of 160ms and above (e.g., 160ms, 320ms, 640ms) to achieve higher energy-saving gains.

[0028] In some embodiments, the second index table is determined by any of the following:

[0029] Modify some parameters in the first index table;

[0030] Introducing a new row based on the configuration of the first index table;

[0031] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0032] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0033] In some embodiments, decoding the third index according to the PRACH resource configuration indication information includes:

[0034] If the PRACH resource configuration indication information is used to instruct the target terminal to use an offset to decode the third index, upon receiving the offset, decoding the third index according to the first index table and the offset to obtain the first resource and the second resource;

[0035] If the PRACH resource configuration indication information is used to instruct the target terminal to use the second index table to decode the third index, decoding the third index according to the second index table to obtain the second resource;

[0036] If the PRACH resource configuration indication information is used to instruct the target terminal to use a bitmap to decode the third index, upon receiving the bitmap, the third index is decoded according to the first index table and the bitmap to obtain the first resource and the second resource.

[0037] In some embodiments, the PRACH resource configuration indication information is carried by the first signaling or the second signaling.

[0038] In some embodiments, the offset is carried by the first signaling or the second signaling; the bitmap is carried by the first signaling or the second signaling.

[0039] In an embodiment of the present application, the PRACH resource configuration indication information can be transmitted in the first signaling or the second signaling, and updated as the first signaling or the second signaling is updated, thereby realizing the update of the second resource, so that the network side device has more opportunities to enter the energy-saving state, thereby realizing network energy saving.

[0040] In some embodiments, determining the second resource according to the fourth index includes:

[0041] According to the second index table, the second index in the fourth index is decoded to determine the second resource.

[0042] In some embodiments, the method further comprises:

[0043] Decoding the first index in the fourth index according to the first index table to obtain a first resource; wherein the use priority of the second resource is higher than the use priority of the first resource;

[0044] When the process using the second resource does not respond after sending the random access request for a preset time period, using the first resource for PRACH transmission;

[0045] When the process using the second resource does not respond after sending the random access request a preset number of times, the first resource is used for PRACH transmission.

[0046] In this embodiment of the present application, the fourth index includes two parts: a first index for determining the first resource, and a second index for determining the second resource. After the target terminal receives the second resource in the first signaling, the second resource is subsequently updated by the second index in the second signaling. That is, subsequent updates of the second resource are updated by the second index carried by the second signaling, thereby achieving rapid updates of the second resource and thus achieving network energy conservation.

[0047] In some embodiments, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0048] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0049] In some embodiments, the method further comprises:

[0050] Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or,

[0051] Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

[0052] In some embodiments, the method further comprises:

[0053] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0054] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0055] In some embodiments, adjusting the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling includes:

[0056] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0057] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0058] In some embodiments, the method further comprises:

[0059] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

[0060] In some embodiments, adjusting activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling includes:

[0061] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0062] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0063] In a second aspect, the present application provides a physical random access channel resource configuration method, which is applied to a network side device, and the method includes:

[0064] Configuring a first resource for a target terminal through a first index, and configuring or updating a second resource for the target terminal through a second index, wherein the first index is carried by a first signaling and the second index is carried by a second signaling; or

[0065] Configuring or updating the first resource and the second resource for the target terminal through a third index or a fourth index, where the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling;

[0066] The second resource is updated through the second signaling.

[0067] In an embodiment of the present application, a network-side device configures a first resource for a target terminal based on a first index, the first index being carried by a first signaling, and a network-side device configures a second resource for the target terminal based on a second index; or, the network-side device configures a second resource for the target terminal based on a third index or a fourth index that includes the second index. By configuring a second resource that can be quickly updated, the network-side device can adjust the second resource in a timely and flexible manner, thereby providing more opportunities to enter an energy-saving state, thereby achieving network energy saving.

[0068] In some embodiments, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0069] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0070] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling. For subsequent updates of the second resource, the index of the second resource configured by the network side device and / or the PRACH resource configuration indication information can be carried based on the second signaling, and the second signaling can be sent to the target terminal to achieve rapid updates of the second resource, thereby achieving network energy saving.

[0071] In some embodiments, the method further comprises:

[0072] Configuring the first resource through SIB1;

[0073] The first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE.

[0074] In some embodiments, the first signaling further carries PRACH resource configuration indication information; the PRACH resource configuration indication information is used to indicate any of the following:

[0075] The target terminal decodes the third index using the offset;

[0076] The target terminal decodes the third index using the second index table;

[0077] The target terminal uses bitmap to decode the third index.

[0078] In an embodiment of the present application, the network side device can configure PRACH resource configuration indication information, which is carried by the first signaling or the second signaling. For example, during the initial configuration, the first signaling can carry the third index and the PRACH resource configuration indication information, indicating the start or stop of decoding the third index and / or the use of an offset (or bitmap) to decode the third index to obtain the second resource; in the subsequent update process, the PRACH resource configuration indication information can be carried by the second signaling to achieve rapid update, so that the second resource can be quickly updated, thereby achieving network energy saving.

[0079] In some embodiments, the second index table is determined by any of the following:

[0080] Modify some parameters in the first index table;

[0081] Introducing a new row based on the configuration of the first index table;

[0082] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0083] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0084] In some embodiments, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0085] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0086] In some embodiments, the method further comprises:

[0087] Determine the dynamic plan for SSB adjustment;

[0088] The SSB adjustment dynamic scheme is carried by the second signaling, and the SSB adjustment dynamic scheme is used to instruct the target terminal to dynamically adjust the second resource; the second resource is an RO time-frequency resource other than the first resource and cannot be decoded or used by the legacy UE.

[0089] In some embodiments, the SSB adjustment dynamic scheme is specifically used to instruct the target terminal to adjust the mapping relationship between the second resource and SSB according to the SSB adjustment dynamic scheme; or, the target terminal adjusts the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme.

[0090] In an embodiment of the present application, the network side device determines the indication information for adjusting the mapping relationship between the second resource and the SSB or adjusting the activation / deactivation of the second resource based on the SSB dynamic adjustment scheme, and carries the indication information by the second signaling to the target terminal, so that the target terminal updates the second resource based on the SSB dynamic adjustment scheme to achieve update diversity. At the same time, the RACH-ConfigCommon parameter or activation or deactivation indication information carried by the second signaling can be quickly updated, thereby achieving rapid update of the second resource, ensuring that the network side device has a greater chance of entering the energy-saving state and achieving network energy saving.

[0091] In a third aspect, the present application provides a device for determining physical random access channel resources, which is applied to a target terminal and includes a memory, a transceiver, and a processor:

[0092] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0093] receiving a first signaling;

[0094] If the first signaling carries a first index, determine a first resource according to the first index, and use the first resource for competitive access; upon receiving the second signaling, switch to using a second resource for competitive access, where the second resource is determined according to a second index carried in the second signaling;

[0095] If the first signaling carries a third index and physical random access channel (PRACH) resource configuration indication information, decoding the third index according to the PRACH resource configuration indication information, and if the decoded result contains a second resource, using the second resource for contention access;

[0096] If the first signaling carries a fourth index, determining a second resource according to the fourth index, and using the second resource for contention access, where the fourth index includes the first index and the second index;

[0097] The second resource is updated through the second signaling.

[0098] In an embodiment of the present application, the terminal determines to use resources that can achieve energy saving, i.e., the second resource, through the index carried by the first signaling, thereby configuring additional RO resources for the target terminal (e.g., R-19UE) without affecting the legacy UE, so that the network side equipment (e.g., base station) has more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0099] In some embodiments, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0100] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0101] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling, and subsequent updates of the second resources can be based on the second signaling carrying the index for determining the second resource and / or PRACH resource configuration indication information to achieve rapid updates of the second resources.

[0102] In some embodiments, the first resource is configured by SIB1, and the first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE;

[0103] The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

[0104] In some embodiments, the processor, configured to determine the first resource according to the first index, includes:

[0105] Decoding the first index according to the first index table to determine the first resource;

[0106] The first index table is an index table used by legacy UEs; the first resource is a long-period RO resource, which is used to indicate an RO resource with a period longer than that configured when both the target terminal and the legacy UE exist.

[0107] In the embodiment of the present application, the first resource determined by the first index is a PRACH resource with a long period RO (resource) (such as 160ms), which ensures that the initial access process of the first terminal (such as a legacy UE) is not affected.

[0108] In some embodiments, the processor is configured to, upon receiving the second signaling, switch to using the second resource for contention access, specifically including:

[0109] Upon receiving the second signaling, decoding the second index carried in the second signaling according to the second index table to obtain the second resource;

[0110] Switching the first resource and using the second resource for contention access;

[0111] The second index table adopts a more centralized RO resource configuration, and the more centralized RO resource configuration is used to indicate that the distribution of RO resources in the subframe is more centralized.

[0112] In an embodiment of the present application, the second resource determined by the second index can be a short-cycle or long-cycle PRACH cycle (e.g., 10ms, 20ms, 40ms, 80ms, 160ms), which can ensure a flexible initial access process for the second terminal; the second resource can also be a PRACH resource of 160ms and above (e.g., 160ms, 320ms, 640ms) to achieve higher energy-saving gains.

[0113] In some embodiments, the second index table is determined by any of the following:

[0114] Modify some parameters in the first index table;

[0115] Introducing a new row based on the configuration of the first index table;

[0116] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0117] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0118] In some embodiments, the processor is configured to decode the third index according to the PRACH resource configuration indication information, specifically including:

[0119] If the PRACH resource configuration indication information is used to instruct the target terminal to use an offset to decode the third index, upon receiving the offset, decoding the third index according to the first index table and the offset to obtain the first resource and the second resource;

[0120] If the PRACH resource configuration indication information is used to instruct the target terminal to use the second index table to decode the third index, decoding the third index according to the second index table to obtain the second resource;

[0121] If the PRACH resource configuration indication information is used to instruct the target terminal to use a bitmap to decode the third index, upon receiving the bitmap, the third index is decoded according to the first index table and the bitmap to obtain the first resource and the second resource.

[0122] In some embodiments, the PRACH resource configuration indication information is carried by the first signaling or the second signaling.

[0123] In some embodiments, the offset is carried by the first signaling or the second signaling; the bitmap is carried by the first signaling or the second signaling.

[0124] In an embodiment of the present application, the PRACH resource configuration indication information can be transmitted in the first signaling or the second signaling, and updated as the first signaling or the second signaling is updated, thereby realizing the update of the second resource, so that the network side device has more opportunities to enter the energy-saving state, thereby realizing network energy saving.

[0125] In some embodiments, the processor is configured to determine the second resource according to the fourth index, specifically including:

[0126] According to the second index table, the second index in the fourth index is decoded to determine the second resource.

[0127] In some embodiments, the processor is further configured to perform the following operations:

[0128] Decoding the first index in the fourth index according to the first index table to obtain a first resource; wherein the use priority of the second resource is higher than the use priority of the first resource;

[0129] When the process using the second resource does not respond after sending the random access request for a preset time period, using the first resource for PRACH transmission;

[0130] When the process using the second resource does not respond after sending the random access request a preset number of times, the first resource is used for PRACH transmission.

[0131] In this embodiment of the present application, the fourth index includes two parts: a first index for determining the first resource, and a second index for determining the second resource. After the target terminal receives the second resource in the first signaling, the second resource is subsequently updated by the second index in the second signaling. That is, subsequent updates of the second resource are updated by the second index carried by the second signaling, thereby achieving rapid updates of the second resource and thus achieving network energy conservation.

[0132] In some embodiments, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0133] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0134] In some embodiments, the processor is further configured to perform the following operations:

[0135] Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or,

[0136] Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

[0137] In some embodiments, the processor is further configured to perform the following operations:

[0138] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0139] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0140] In some embodiments, the processor is configured to adjust the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, specifically including:

[0141] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0142] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0143] In some embodiments, the processor is further configured to perform the following operations:

[0144] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

[0145] In some embodiments, the processor is configured to adjust activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, specifically including:

[0146] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0147] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0148] In a fourth aspect, the present application provides a physical random access channel resource configuration device, which is applied to a network-side device and includes: a memory, a transceiver, and a processor:

[0149] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0150] Configuring a first resource for a target terminal through a first index, and configuring or updating a second resource for the target terminal through a second index, wherein the first index is carried by a first signaling and the second index is carried by a second signaling; or

[0151] Configuring or updating the first resource and the second resource for the target terminal through a third index or a fourth index, where the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling;

[0152] The second resource is updated through the second signaling.

[0153] In an embodiment of the present application, a network-side device configures a first resource for a target terminal based on a first index, the first index being carried by a first signaling, and a network-side device configures a second resource for the target terminal based on a second index; or, the network-side device configures a second resource for the target terminal based on a third index or a fourth index that includes the second index. By configuring a second resource that can be quickly updated, the network-side device can adjust the second resource in a timely and flexible manner, thereby providing more opportunities to enter an energy-saving state, thereby achieving network energy saving.

[0154] In some embodiments, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0155] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0156] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling. For subsequent updates of the second resource, the index of the second resource configured by the network side device and / or the PRACH resource configuration indication information can be carried based on the second signaling, and the second signaling can be sent to the target terminal to achieve rapid updates of the second resource, thereby achieving network energy saving.

[0157] In some embodiments, the processor is further configured to perform the following operations:

[0158] Configuring the first resource through SIB1;

[0159] The first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE.

[0160] In some embodiments, the first signaling further carries PRACH resource configuration indication information; the PRACH resource configuration indication information is used to indicate any of the following:

[0161] The target terminal decodes the third index using the offset;

[0162] The target terminal decodes the third index using the second index table;

[0163] The target terminal uses bitmap to decode the third index.

[0164] In an embodiment of the present application, the network side device can configure PRACH resource configuration indication information, which is carried by the first signaling or the second signaling. For example, during the initial configuration, the first signaling can carry the third index and the PRACH resource configuration indication information, indicating the start or stop of decoding the third index and / or the use of an offset (or bitmap) to decode the third index to obtain the second resource; in the subsequent update process, the PRACH resource configuration indication information can be carried by the second signaling to achieve rapid update, so that the second resource can be quickly updated, thereby achieving network energy saving.

[0165] In some embodiments, the second index table is determined by any of the following:

[0166] Modify some parameters in the first index table;

[0167] Introducing a new row based on the configuration of the first index table;

[0168] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0169] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0170] In some embodiments, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0171] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0172] In some embodiments, the processor is further configured to perform the following operations:

[0173] Determine the dynamic plan for SSB adjustment;

[0174] The SSB adjustment dynamic scheme is carried by the second signaling, and the SSB adjustment dynamic scheme is used to instruct the target terminal to dynamically adjust the second resource; the second resource is an RO time-frequency resource other than the first resource and cannot be decoded or used by the legacy UE.

[0175] In some embodiments, the SSB adjustment dynamic scheme is specifically used to instruct the target terminal to adjust the mapping relationship between the second resource and SSB according to the SSB adjustment dynamic scheme; or, the target terminal adjusts the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme.

[0176] In an embodiment of the present application, the network side device determines the indication information for adjusting the mapping relationship between the second resource and the SSB or adjusting the activation / deactivation of the second resource based on the SSB dynamic adjustment scheme, and carries the indication information by the second signaling to the target terminal, so that the target terminal updates the second resource based on the SSB dynamic adjustment scheme to achieve update diversity. At the same time, the RACH-ConfigCommon parameter or activation or deactivation indication information carried by the second signaling can be quickly updated, thereby achieving rapid update of the second resource, ensuring that the network side device has a greater chance of entering the energy-saving state and achieving network energy saving.

[0177] In a fifth aspect, the present application provides a device for determining physical random access channel resources, the device being applied to a target terminal, the device comprising:

[0178] A receiving unit, configured to receive a first signaling;

[0179] a determining unit, configured to, when a first index is carried in the first signaling, determine a first resource according to the first index, and use the first resource for competitive access; and upon receiving the second signaling, switch to using a second resource for competitive access, where the second resource is determined according to a second index carried in the second signaling;

[0180] The determining unit is further configured to, when the first signaling carries a third index and physical random access channel (PRACH) resource configuration indication information, decode the third index according to the PRACH resource configuration indication information, and if the decoded index contains a second resource, use the second resource for contention access;

[0181] The determining unit is further configured to, when a fourth index is carried in the first signaling, determine a second resource according to the fourth index, and use the second resource for contention access, where the fourth index includes the first index and the second index;

[0182] The second resource is updated through the second signaling.

[0183] In an embodiment of the present application, the terminal determines to use resources that can achieve energy saving, i.e., the second resource, through the index carried by the first signaling, thereby configuring additional RO resources for the target terminal (e.g., R-19UE) without affecting the legacy UE, so that the network side equipment (e.g., base station) has more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0184] In a sixth aspect, the present application provides a physical random access channel resource configuration device, which is applied to a network side device, and includes:

[0185] A first configuration unit is configured to configure a first resource for a target terminal through a first index, and to configure or update a second resource for the target terminal through a second index, wherein the first index is carried by a first signaling and the second index is carried by a second signaling; or

[0186] A second configuration unit, configured to configure or update the first resource and the second resource for the target terminal through a third index or a fourth index, where the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling;

[0187] The second resource is updated through the second signaling.

[0188] In an embodiment of the present application, a network-side device configures a first resource for a target terminal based on a first index, the first index being carried by a first signaling, and a network-side device configures a second resource for the target terminal based on a second index; or, the network-side device configures a second resource for the target terminal based on a third index or a fourth index that includes the second index. By configuring a second resource that can be quickly updated, the network-side device can adjust the second resource in a timely and flexible manner, thereby providing more opportunities to enter an energy-saving state, thereby achieving network energy saving.

[0189] In a seventh aspect, the present application provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method described in any one of the first aspect or the second aspect.

[0190] The present application provides a method, a configuration method, and an apparatus for determining physical random access channel resources. By receiving a first signaling, based on an index carried by the first signaling or in combination with PRACH resource configuration indication information, it is determined to use a resource that can achieve energy saving, i.e., a second resource. This configuration enables additional RO resources to be configured for a target terminal (e.g., R-19 UE) without affecting legacy UEs, giving network-side devices (e.g., base stations) more opportunities to enter an energy-saving state, thereby achieving network energy saving.

[0191] It should be understood that the contents described in the above summary of the invention are not intended to limit the key or important features of the embodiments of the present application, nor are they intended to limit the scope of the present application. Other features of the present application will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0192] In order to more clearly illustrate the technical solutions in this application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0193] FIG1 is a schematic diagram of a flow chart of a method for determining physical random access channel resources according to an embodiment of the present application;

[0194] FIG2 is a first interactive diagram of a method for determining physical random access channel resources provided in an embodiment of the present application;

[0195] FIG3 is a second interactive diagram of a method for determining physical random access channel resources provided in an embodiment of the present application;

[0196] FIG4 is a schematic diagram of a flow chart of a method for configuring physical random access channel resources according to an embodiment of the present application;

[0197] FIG5 is a structural diagram 1 of a device for determining physical random access channel resources provided in an embodiment of the present application;

[0198] FIG6 is a second structural diagram of a device for determining physical random access channel resources provided in an embodiment of the present application;

[0199] FIG7 is a structural diagram of a physical random access channel resource configuration device according to an embodiment of the present application;

[0200] FIG8 is a second structural diagram of the device for configuring physical random access channel resources provided in an embodiment of the present application. DETAILED DESCRIPTION

[0201] In the embodiments of this application, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0202] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0203] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and they can be performed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0204] In order to clearly understand the technical solution of this application, the solution of the related technology is first introduced in detail.

[0205] In the related art, the UE obtains the specific configuration of the random access opportunity (RACH Occasion, RO) by decoding the system information block (SIB) signaling sent by the base station in the current cell, and initiates contention-based random access to the currently located cell.

[0206] However, the related art cannot configure or select PRACH resources for UEs other than legacy UEs, and thus cannot achieve network energy saving.

[0207] Therefore, based on the above research, the physical random access channel resource determination method, configuration method and device proposed in this application are proposed. In this application, the target terminal determines the RO resource used for contention access (for example, giving priority to the second resource, which can be quickly updated) by receiving the index of the physical random access channel (English: Physical Random Acess Channel, abbreviated as: PRACH) resource configured by the network side device, thereby realizing the configuration of additional RO resources for the target terminal without affecting the legacy UE, so that the network side device (for example, the base station) has more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0208] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0209] The following embodiments of the present application will be described with reference to the accompanying drawings. In the absence of conflicts between the embodiments, the following embodiments and the features of the embodiments may be combined with each other. In addition, the step timings in the following method embodiments are only examples and are not strictly limiting.

[0210] Referring to Figure 1 , Figure 1 is a flow chart illustrating a method for determining physical random access channel resources according to an embodiment of the present application. The method for determining physical random access channel resources according to this embodiment is performed by a target terminal, such as a UE other than a legacy UE or a UE to be deployed in the future. The method for determining physical random access channel resources is described in detail below.

[0211] The method for determining physical random access channel resources provided in the embodiment of the present application includes the following steps:

[0212] Step 101: Receive first signaling.

[0213] Step 102: If the first signaling carries a first index, determine a first resource based on the first index, and use the first resource for competitive access. When receiving the second signaling, switch to using the second resource for competitive access. The second resource is determined based on the second index carried by the second signaling.

[0214] Step 103: If the first signaling carries a third index and physical random access channel PRACH resource configuration indication information, decode the third index according to the PRACH resource configuration indication information. If the decoded index contains a second resource, use the second resource for competitive access.

[0215] Step 104: If the first signaling carries a fourth index, determine a second resource based on the fourth index, and use the second resource for competitive access, where the fourth index includes the first index and the second index.

[0216] In an embodiment of the present application, the target terminal receives a first signaling sent by a network-side device. The target terminal determines to use a second resource that can achieve energy saving for competitive access through an index carried in the first signaling. Since the second signaling can be updated faster than the first signaling, the second resource is updated through the update of the second signaling during subsequent updates, giving the network-side device (for example, a base station) more opportunities to enter an energy-saving state, thereby achieving network energy saving.

[0217] Specifically, the target terminal receives a first signaling sent by a network-side device, and the first signaling may carry at least one of the following: a first index, a second index, a third index, a fourth index, and PRACH resource configuration indication information (e.g., additional 1-bit indication information). When initially determining or configuring resources, the index is carried by the first signaling. Since the second signaling can be updated more quickly than the first signaling, during subsequent resource updates, the second signaling may be used to carry the second index or fourth index for resource (e.g., second resource) updates, or the PRACH resource configuration indication information.

[0218] The target terminal here may have at least one function of decoding the first index, the second index, the third index, and the fourth index, and then determine the corresponding resources.

[0219] If the index carried in the first signaling received by the target terminal is an existing index, for example, the first index, it is determined to use the first resource obtained by decoding the first index for competitive access. When the second signaling sent by the network side device is received, it is determined that the index carried in the second signaling is the second index. Based on the second index, the second resource is determined, and the second resource is switched to be used for subsequent competitive access.

[0220] Specifically, the target terminal determines the first resource according to the first index in the first signaling, and uses the first resource to compete for access, and then determines the second resource according to the second index in the second signaling; after the target terminal receives the second index, the target terminal no longer uses the first resource, but instead uses the second resource.

[0221] If the first signaling received by the target terminal carries an index and the received first signaling also carries PRACH resource configuration indication information, the index is determined to be a third index. The third index and the PRACH resource configuration indication information can be carried by the same first signaling or by different first signalings, which is not specifically limited here.

[0222] Specifically, the following takes the example of the first signaling carrying both the third index and the PRACH resource configuration indication information. The target terminal determines the first resource and the second resource based on the third index in the first signaling. The first signaling carries the PRACH resource configuration indication information (for example, an additional 1-bit configuration indication) to instruct the target terminal to decode the third index. The target terminal decodes the third index based on the PRACH resource configuration indication information. If the second resource is decoded, the target terminal uses the second resource for competitive access.

[0223] If the index carried in the first signaling received by the target terminal includes two parts, namely the first index and the second index, the index is determined to be the fourth index. The target terminal can decode the first resource using the first index table based on the first index of the fourth index; and the target terminal can decode the second index using the second index table (for example, an index table updated based on the first index table) based on the second index of the fourth index to obtain the second resource. Since the second resource can be updated quickly, in order to ensure that network-side devices have more opportunities to enter an energy-saving state and achieve network energy saving, the target terminal has a higher priority for using the second resource than the first resource. Therefore, when decoding and obtaining the second resource, the target terminal prioritizes using the second resource for competitive access.

[0224] For example, referring to FIG. 2 , FIG. 2 is an interactive diagram 1 of a method for determining physical random access channel resources provided in an embodiment of the present application. The following takes the network-side device as a base station as an example:

[0225] Step 1: The base station configures PRACH resources, such as RO resources, for the target terminal.

[0226] Specifically, the configuration decoding obtains the index of the PRACH resource, such as the first index, the second index, the third index, the fourth index, etc., and the PRACH resource configuration indication information can also be configured. The PRACH resource configuration indication information can be transmitted synchronously with the third index. In subsequent updates, the PRACH resource configuration indication information can be carried by the second signaling to achieve rapid updates.

[0227] Step 2: The target terminal receives a first signaling sent by the base station. During initial configuration, the index is carried by the first signaling, and the base station sends the first signaling to the target terminal.

[0228] For example, in step 2a, the target terminal receives a first signaling carrying a first index sent by the base station, and then sends a second signaling carrying a second index;

[0229] Step 2b: The target terminal receives first signaling sent by the base station and carrying the third index and PRACH resource configuration indication information;

[0230] Step 2c: The target terminal receives the first signaling carrying the fourth index sent by the base station;

[0231] Step 3: The target terminal decodes the index carried in the first signaling according to the received first signaling, obtains the second resource through decoding, and uses the second resource for contention access.

[0232] For example, step 3a is performed after step 2a. The target terminal decodes the first index based on the first index table, obtains the first resource, and uses the first resource for competitive access; after receiving the second signaling carrying the second index, the second index is decoded based on the second index table, the second resource is determined, the first resource is no longer used, and the second resource is switched to be used for competitive access.

[0233] Step 3b: This step is performed after step 2b. The target terminal decodes the third index based on the first index table and the PRACH resource configuration indication information, and when the second resource is obtained through decoding, the target terminal uses the second resource for contention access.

[0234] Step 3c: This step is performed after step 2c. The target terminal decodes the fourth index table to obtain the first resource and the second resource, and preferentially uses the second resource for competitive access. Specifically, the target terminal decodes the first index in the fourth index based on the first index table to obtain the first resource; and decodes the second index in the fourth index based on the second index table to obtain the second resource. Because the priority of using the second resource is higher than the priority of using the first resource, the target terminal preferentially uses the second resource for competitive access.

[0235] In an embodiment of the present application, the target terminal receives the first signaling and determines to use resources that can achieve energy saving, i.e., the second resource, based on the index carried by the first signaling or in combination with the PRACH resource configuration indication information. This achieves the configuration of additional RO resources for the target terminal (e.g., R-19UE) without affecting the legacy UE, so that the network side equipment (e.g., base station) has more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0236] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0237] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0238] Among them, the first signaling: SIB1 signaling or radio resource control (English: Radio Resource Control, abbreviated: RRC) signaling; the second signaling: including but not limited to downlink control information (English: Downlink Control Information, abbreviated: DCI) (dedicated or common) signaling, SIBx (here refers to SIB1, SIB2, ... and other system information blocks (English: System Information Block, abbreviated: SIB)) signaling, RRC signaling, i.e. RRC signaling (dedicated or common), media access control layer control element (English: Media Access Control-Control Element, abbreviated: MAC CE), etc. The second signaling can achieve faster updates compared to the first signaling.

[0239] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling, and subsequent updates of the second resources can be based on the second signaling carrying the index for determining the second resource and / or PRACH resource configuration indication information to achieve rapid updates of the second resources.

[0240] Optionally, the first resource is configured by SIB1, and the first resource is a random access opportunity RO time-frequency resource decoded and used by a currently deployed terminal legacy UE;

[0241] The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

[0242] The first resource refers to the RO time-frequency resource configured by SIB1 and can be decoded and used by legacy UEs. The second resource refers to the RO time-frequency resource other than the first resource that cannot be decoded or used by legacy UEs. The second resource and the first resource do not overlap in the time domain. The first terminal (here, the legacy UE) can only use the first resource, and the second terminal (here, the target terminal) can use either the first resource or the second resource.

[0243] Optionally, determining the first resource according to the first index includes:

[0244] Decoding the first index according to the first index table to determine the first resource;

[0245] The first index uses 8 bits to indicate 256 configurations for the legacy UE or target terminal. The first index table is the index table used by the legacy UE. The first resource is a long-period RO resource, which is used to indicate an RO resource with a period longer than the period configured when only the legacy UE is present when both the target terminal and the legacy UE are present.

[0246] Specifically, for the first index, the network-side device configures a first resource: a PRACH resource with a long RO period (e.g., 160ms) is configured to ensure that the initial access process of the first terminal is not affected. The first index is carried by the first signaling and is updated when the first signaling is updated. The first index uses the existing index table (e.g., the first index table) without enhancement.

[0247] In the embodiment of the present application, the first resource determined by the first index is a PRACH resource with a long period RO (resource) (such as 160ms), which ensures that the initial access process of the first terminal (such as a legacy UE) is not affected.

[0248] Optionally, upon receiving the second signaling, switching to use the second resource for contention access includes:

[0249] Upon receiving the second signaling, decoding the second index carried in the second signaling according to the second index table to obtain the second resource;

[0250] Switching the first resource and using the second resource for contention access;

[0251] The second index table adopts a more centralized RO resource configuration, which indicates that the RO resources are more centralized in the subframe. The second resource is carried by the second signaling and updated quickly. The second terminal receives the second signaling in real time and updates the second resource.

[0252] For the second index, the network side device configures the second resource: a short or long PRACH period (such as 10ms, 20ms, 40ms, 80ms, 160ms) can be configured for the target terminal to ensure a flexible initial access process for the second terminal; or a PRACH resource of 160ms or more (such as 160ms, 320ms, 640ms) can be configured for the second terminal to obtain higher energy-saving gains.

[0253] The second index is carried by the first signaling or the second signaling and is updated when both are updated. The first signaling can carry both the first index and the second index, while the second signaling can carry only the second index. The target terminal can decode the RO resource (herein, the second resource) based on the second index in the first signaling, or can decode the RO resource (herein, the second resource) based on the second index in the second signaling. The network-side device can use the second signaling to quickly update the RO resource (herein, the second resource) of the target terminal, thereby achieving energy-saving gains.

[0254] The second index uses a new index table (herein referred to as the second index table). The new index is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0255] The more centralized RO (resource) configuration means that the RO (resource) is more concentrated in the subframe. The design scheme of RO centralization is:

[0256] Solution 1: Based on the existing table design, the RO (resource) distribution in the subframe is concentrated in consecutive subframes and distributed as much as possible in the middle of the radio frame. Only the parameters of the subframe number column are changed.

[0257] Solution 2: Design a new table, where the subframe number column contains consecutive subframe numbers.

[0258] Solution 3: Let n=1, then the RO (resource) of the first resource and the second resource are distributed on adjacent subframe numbers (the RO subframe numbers of the two are adjacent), but this solution is not suitable for index rows with consecutive subframe numbers (it violates the principle that the first resource and the second resource do not overlap).

[0259] Therefore, the solution based on the RO centralized design requires the base station to perform monitoring for a shorter time or change the monitoring state less frequently.

[0260] Optionally, the second index table is determined by any one of the following:

[0261] Modify some parameters in the first index table;

[0262] Introducing a new row based on the configuration of the first index table;

[0263] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0264] The design methods of the new table (here referring to the second index table) include but are not limited to the following four:

[0265] Method 1: Configure a new index table. You can modify some parameters in the existing index table (here refers to the first index table). For example, modify the parameters in the subframe number column. The original index of the subframe number {1, 4, 7} is changed to {3, 4, 5}, and the original index of the subframe number {1, 3, 5, 7, 9} is changed to {3, 4, 5, 6, 7}:

[0266] Method 2: Configure a new index table, introduce new rows based on the 256 configurations (8 bits) of the original index table (here refers to the first index table), and use more bits (for example, 9 bits or more) to indicate these newly introduced indexes (of the three existing tables (i.e., tables, here refers to index tables), two tables are used for frequency division duplex (FDD) / time division duplex (TDD) in the FR1 frequency band, and these two tables use 8 bits to indicate 256 configurations; the other table is used in the FR2 frequency band and has introduced a ninth bit to indicate several additional configurations. For this table, there is no need to introduce more bits, and the new configuration can be directly added after the table).

[0267] Method 3: Configure a new index table designed specifically for the target terminal.

[0268] Method 4: Instead of introducing a new index table, based on the existing RO index table (here, the first index table), ROs with multiple periods are centralized into one period. This allows for more centralized RO configuration while maintaining the same number of ROs. This configuration method only applies to configurations with periods of 80ms or less in the index.

[0269] For example, in the index table corresponding to FR1 FDD, for index 16, that is, the period is 10ms, and the RO distribution subframe number is configured as 1, 8 consecutive original PRACH periods can be configured as 1 new PRACH period, and 8 non-consecutive RO distributions can be configured in consecutive subframes within a radio frame.

[0270] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0271] Optionally, the decoding the third index according to the PRACH resource configuration indication information includes:

[0272] If the PRACH resource configuration indication information is used to instruct the target terminal to use an offset to decode the third index, upon receiving the offset, decoding the third index according to the first index table and the offset to obtain the first resource and the second resource;

[0273] If the PRACH resource configuration indication information is used to instruct the target terminal to use the second index table to decode the third index, decoding the third index according to the second index table to obtain the second resource;

[0274] If the PRACH resource configuration indication information is used to instruct the target terminal to use a bitmap to decode the third index, upon receiving the bitmap, the third index is decoded according to the first index table and the bitmap to obtain the first resource and the second resource.

[0275] Among them, the third index indicates RO resources for both the legacy UE and the target terminal, including the first resource and the second resource. The third index is carried by the first signaling and is updated when the first signaling is updated; the first signaling or the second signaling also carries two indication quantities (including an on / off indication indicating that the target terminal uses the second index table to decode the third index, and an indication of the offset n (or bitmap)): a 1-bit on / off indication and / or an indication of the offset n (or bitmap). The two indication quantities can be transmitted in the first signaling or the second signaling and updated when both are updated.

[0276] The additional 1-bit configuration indicates (here, the PRACH resource configuration indication information indicates) whether the target terminal uses the offset n (or bitmap) or the new table (here, the second index table) to decode the third index. The two indicators can be transmitted independently and may not be dependent on the third index.

[0277] The RO resource locations obtained by the legacy UE and the target terminal after decoding the third index are different. For the legacy UE, the third index uses the existing index table, and the first resource is obtained after decoding. For the target terminal, in addition to the first resource, the third index corresponds to additional information (for example, PRACH resource configuration indication information), and the second resource is obtained after decoding the two indications. Or,

[0278] The legacy UE and the target terminal use different index tables for decoding the third index. The target terminal uses a new index table (here, the new index table configured specifically for the target terminal in method three above) to decode the third index and obtain the RO resource distribution. The RO resources in the new index table are more concentrated in the time domain. The network-side device (e.g., base station) does not send the offset n (or bitmap).

[0279] Optionally, the PRACH resource configuration indication information is carried by the first signaling or the second signaling.

[0280] Optionally, the offset is carried by the first signaling or the second signaling; the bitmap is carried by the first signaling or the second signaling.

[0281] Among them, for the offset n:

[0282] In the index table corresponding to FR1 TDD, the subframe number obtained by decoding the target terminal is increased by an offset on the original basis, for example, +n (or -n) on the original subframe number. For the index that occupies all subframes, the offset is not increased; or

[0283] In the index table corresponding to FR1 FDD, the subframe number obtained by decoding the target terminal is increased by an offset on the original basis, for example, +n (or -n) is added to the original subframe number. For indices occupying 6 or more subframes (such as {2, 3, 4, 7, 8, 9}, the offset is not increased; or,

[0284] In the index table corresponding to FR2, the subframe number obtained by decoding the target terminal is increased by an offset on the original basis, for example, +n (or -n) is added to the original subframe number.

[0285] For the two index tables corresponding to FR1, 1≤n≤5, and for the FR2 table, 1≤n≤20.

[0286] For bitmap:

[0287] It can indicate whether the RO is turned on or off within a certain period. For example, bitmap=10101010 means that the RO is alternately turned on in 8 consecutive periods; bitmap=1101 means that in the next 4 periods, the RO resource is turned off in the third period.

[0288] In an embodiment of the present application, the PRACH resource configuration indication information can be transmitted in the first signaling or the second signaling, and updated as the first signaling or the second signaling is updated, thereby realizing the update of the second resource, so that the network side device has more opportunities to enter the energy-saving state, thereby realizing network energy saving.

[0289] Optionally, determining the second resource according to the fourth index includes:

[0290] According to the second index table, the second index in the fourth index is decoded to determine the second resource.

[0291] For the fourth index table, configure the second resource:

[0292] The fourth index can be divided into two parts. In addition to the index corresponding to the first resource (i.e., the first part, referred to as the first index here), it also includes a second part index (i.e., the second part, referred to as the second index here), and the second part index indicates the second resource for the target terminal. For example, the first part still uses 8 bits to indicate 256 configurations for the legacy UE or target terminal, and the second part uses an additional 8 bits to indicate 256 configurations for the target terminal. The first and second parts of the fourth index can be counted as two different indexes.

[0293] Optionally, the method further includes:

[0294] Decoding the first index in the fourth index according to the first index table to obtain a first resource; wherein the use priority of the second resource is higher than the use priority of the first resource;

[0295] When the process using the second resource does not respond after sending the random access request for a preset time period, using the first resource for PRACH transmission;

[0296] When the process using the second resource does not respond after sending the random access request a preset number of times, the first resource is used for PRACH transmission.

[0297] Specifically, the target terminal can also decode the first part of the fourth index, obtain the first resource, and use the first resource. The use of the first resource requires the following triggering conditions:

[0298] For the target terminal, the second resource has a higher priority. When the process using the second resource still has no response after the signal is sent for time T (here refers to the preset duration), the target terminal can use the first resource; when the process using the second resource still has no response after the signal is sent N times (here refers to the preset number of times), the target terminal can use the first resource.

[0299] When the target terminal does not receive the second index or the third index, the first resource may be used;

[0300] When the target terminal receives the second index or the third index, the first resource is not used.

[0301] After the target terminal receives the second resource of the first signaling, the second resource is subsequently updated by the second index of the second signaling. For the specific implementation method, please refer to the above step 102, which involves decoding the second index after receiving the second index carried by the second signaling to obtain the specific implementation process of the second resource. It will not be repeated here.

[0302] The method for decoding the second index.

[0303] Among them, the configuration of the first index, the second index, the third index, and the fourth index is determined by the network side device (for example, the base station).

[0304] The target terminal can also decode the second part of the fourth index, obtain the second resource, and use the second resource.

[0305] In this embodiment of the present application, the fourth index includes two parts: a first index for determining the first resource, and a second index for determining the second resource. After the target terminal receives the second resource in the first signaling, the second resource is subsequently updated by the second index in the second signaling. That is, subsequent updates of the second resource are updated by the second index carried by the second signaling, thereby achieving rapid updates of the second resource and thus achieving network energy conservation.

[0306] Optionally, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0307] Since in the related art, the update of the PRACH Configuration Index parameter is completed in SIB1 or RRC, resulting in a large update delay (taking SIB1 as an example, the new SIB1 information is obtained after the next MP of the Paging DCI is received, and the new PRACH cycle is applied at the earliest at the next adjustment opportunity MP start position). In the embodiment of the present application, the update of the PRACH Configuration Index parameter is completed in the second signaling. The second signaling can achieve faster update than the first signaling, thereby reducing the delay.

[0308] Referring to FIG. 3 , FIG. 3 is a second interactive diagram of a method for determining physical random access channel resources provided in an embodiment of the present application, taking a base station as an example of a network-side device:

[0309] Step 1: The base station configures updated PRACH resources, such as the second resource, for the target terminal.

[0310] Specifically, the base station configures decoding to obtain an index of the PRACH resource, such as a second index, and may further configure PRACH resource configuration indication information. The second index or the PRACH resource configuration indication information is carried by the second signaling to achieve rapid update.

[0311] Step 2: The target terminal receives the second signaling sent by the base station. In subsequent second resource updates, the second index or PRACH resource configuration indication information is carried by the second signaling, that is, the second signaling carries the second index or PRACH resource configuration indication information, and the base station sends the second signaling to the target terminal.

[0312] Step 3: The target terminal decodes the third index carried in the first signaling or the second index carried in the second signaling according to the received second signaling, obtains the second resource through decoding, and quickly updates the second resource and uses the second resource for competitive access.

[0313] Specifically, if the second signaling carries a second index, the second index is decoded using the second index table to obtain the second resource; if the second signaling carries PRACH resource configuration indication information, the third index is decoded using the first index table in combination with the PRACH resource configuration indication information to obtain the second resource. The second resource can be quickly updated based on the second signaling carrying the second index, giving network-side devices (e.g., base stations) more opportunities to enter an energy-saving state. This solves the problem in the existing PRACH index table (here, the first index table), where the base station always monitors at the same period in a single parameter configuration. When the configured period is small, the base station will have difficulty entering an energy-saving state.

[0314] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0315] Optionally, the method further includes:

[0316] Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or,

[0317] Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

[0318] In an embodiment of the present application, the dynamic SSB adjustment scheme is determined by the base station according to a predefined or base station implementation method. The SSB adjustment scheme includes but is not limited to the adjustment of the number of SSBs and the SSB burst (period, direction). The adjustment of the SSB will affect the configuration of the second resource. The SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling.

[0319] Optionally, the method further includes:

[0320] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0321] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0322] In the embodiment of the present application, the target terminal decodes the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship, and then determines the first and second resources by the first index (or other index). The RACH-ConfigCommon parameter in the second signaling can be quickly updated.

[0323] Optionally, adjusting the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling includes:

[0324] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0325] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0326] Among them, the target terminal receives the RACH-ConfigCommon parameter in the second signaling and uses the adjusted RO mapping relationship. For the RACH-ConfigCommon parameter set, the SSB-RO mapping relationship is configured by the ssb-perRACH-OccasionAndCB-PreamblesPerSSB parameter, including one-to-eight, one-to-four, one-to-two, one-to-one, two-to-one, four-to-one, eight-to-one, sixteen-to-one and other situations, which are not specifically limited here.

[0327] Optionally, the method further includes:

[0328] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

[0329] Optionally, adjusting activation or deactivation of the second resource according to the SSB dynamic adjustment scheme in the second signaling includes:

[0330] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0331] The network side device (e.g., a base station) determines activation / deactivation of the second resource part RO according to the SSB adjustment scheme. The SSB adjustment scheme includes but is not limited to adjustment of the number of SSBs and the SSB burst (period, direction). The adjustment of the SSB will affect the configuration of the second resource. The activation / deactivation signaling (or the dynamic SSB adjustment scheme) is carried by the second signaling. The activation / deactivation signaling (or the dynamic SSB adjustment scheme) includes but is not limited to the form of a bitmap.

[0332] The target terminal activates / deactivates ROs for a certain period or number according to the activation / deactivation signaling (or SSB adjustment dynamic solution) sent by the base station. The activation / deactivation signaling (or SSB adjustment dynamic solution) is carried by the second signaling and can be quickly updated.

[0333] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0334] Exemplary embodiment 1 (the target terminal uses the first resource to compete for access; after receiving the second index, the target terminal no longer uses the first resource and instead uses the second resource)

[0335] The target terminal decodes the second resource using a second index table (new or modified index table) to obtain PRACH configuration parameters. The index table uses a more centralized RO configuration to obtain energy-saving gains, including the following methods:

[0336] Method 1A: The new index table (herein referred to as the second index table) modifies the values ​​in the subframe number column based on the original table (herein referred to as the first index table) so that the distribution of ROs in the subframe is concentrated in consecutive subframes and is distributed as much as possible in the middle of the radio frame. For example, the index of the subframe number {1, 4, 7} is changed to {3, 4, 5}, and the index of the original subframe number {1, 3, 5, 7, 9} is changed to {3, 4, 5, 6, 7}.

[0337] For example, based on Table 6.3.3.2-2, the original row subframe numbers corresponding to index = 22 are {1, 4, 7}. In accordance with the principle of concentrating the distribution of ROs in subframes in consecutive subframes and distributing them as much as possible in the middle of the radio frame, a more concentrated distribution {3, 4, 5} is used. See Table 1:

[0338] Table 1

[0339] In addition to the above methods, method 1A also includes introducing new rows based on the 256 configurations (8 bits) of the original table (here refers to the first index table), and using more bits (for example, 9 bits or more) to indicate these newly introduced indexes;

[0340] Method 2A: Based on the existing RO index table (for example, the first index table), ROs of multiple periods are centrally configured into one period, achieving more centralized RO configuration while ensuring that the number of ROs remains unchanged. This configuration method is only for configurations with a period of 80ms or less in the index. For example, in the index table corresponding to FR1 TDD, for index 16, that is, a period of 10ms, and a configuration with an RO distribution subframe number of 1, 8 consecutive PRACH periods can be configured as 1 PRACH period, and 8 non-continuous ROs can be distributed in consecutive subframes within a radio frame.

[0341] For example, based on Table 6.3.3.2-2, the original index = 16 corresponds to the row subframe number {1}, the period x = 1, and the corresponding period is 10ms. In 8 consecutive periods, there is 1 RO in 8 radio frames within 80ms, distributed in subframe 1 of each radio frame. The corresponding modification can be x = 8, corresponding to a period of 80ms, and subframe numbers {1, 2, 3, 4, 5, 6, 7, 8}, thereby achieving a more centralized RO configuration while ensuring that the number of ROs remains unchanged. See Table 2:

[0342] Table 2

[0343] Method 3A: Configure a new index table designed specifically for the target terminal.

[0344] The new index table can directly use a more centralized design, for example, the subframe number is configured as a continuous number, and the period can be a value such as {1, 2, 4, 8, 16}. See Table 3:

[0345] Table 3

[0346] The second resource is carried by the second signaling and is quickly updated. The target terminal receives the second signaling in real time and updates the second resource.

[0347] Exemplarily, embodiment 2 (the target terminal determines the first resource and the second resource according to the fourth index in the first signaling) specifically includes the following steps:

[0348] The target terminal uses the first resource or the second resource to perform processes such as initial access. There is a priority order for the use of the first resource or the second resource. For the target terminal, the use of the second resource has a higher priority.

[0349] When the process using the second resource still does not respond after the signal sending time T, the target terminal can use the first resource;

[0350] When the process using the second resource still does not respond after the signal is sent N times, the target terminal can use the first resource.

[0351] After the target terminal receives the second resource of the first signaling, the second resource is subsequently updated by the second index of the second signaling, which is the same as in the first embodiment.

[0352] Exemplarily, embodiment three (the target terminal determines the first resource and the second resource according to the third index in the first signaling, and the target terminal decodes the third index using the offset n) specifically includes:

[0353] An additional 1-bit configuration indication (here, PRACH resource configuration indication information) is used to instruct the target terminal to decode the third index; after receiving the third index, the target terminal receives the offset n from the first signaling or the second signaling to obtain the second resource;

[0354] When the offset n is sent in the first signaling, the target terminal directly uses the second resource indicated by the third index to perform an initial access process;

[0355] When the offset n is sent in the second signaling, the target terminal directly uses the first resource indicated by the third index to perform the initial access process, and then uses the second resource indicated by the third index after decoding the second signaling to obtain n.

[0356] The target terminal uses the existing index table and offset n to decode and obtain the second resource, including the following methods:

[0357] The target terminal decodes the third index to obtain the subframe number (subframe number column) and adds an offset n to the original one, for example, +n (or -n) to the original subframe number. This solution is not applicable to indices that occupy more than half of the subframes in the wireless frame.

[0358] The target terminal waits for the first signaling or the second signaling to update the second resource.

[0359] The above-mentioned offset n works as follows: Taking n=1 as an example, based on Table 6.3.3.2-2, the original row subframe numbers corresponding to index=22 are {1, 4, 7}. According to the offset n=1 principle, the original subframe numbers are increased by n, and a more concentrated distribution {2, 5, 8} is used. The original row subframe numbers corresponding to index=23 are {2, 5, 8}, which are changed to {3, 6, 9}. This change avoids the collision of the first resource and the second resource, and the actual RO occupancy after the change is {2, 3, 5, 6, 8, 9}, which is also more concentrated than the configuration of the existing table (here referring to the first index table). See Table 4:

[0360] Table 4

[0361] Exemplary embodiment 4 (the target terminal determines the first resource and the second resource according to the third index in the first signaling, and the target terminal can use a new index table to decode the third index and obtain the second resource distribution. At this time, the network side device (eg, base station) no longer needs to send the offset n), specifically including:

[0362] In the new index table (here referring to the new index table in method 3), the RO resources are more concentrated in the time domain. The concentration method includes concentrating the distribution of ROs in consecutive subframes and trying to distribute them in the middle of the radio frame;

[0363] The index table is preconfigured;

[0364] The new index table design is the same as method 3A in embodiment 1.

[0365] Exemplarily, embodiment five (the target terminal determines the first resource and the second resource according to the third index in the first signaling, and the target terminal decodes the third index according to the bitmap) specifically includes:

[0366] An additional 1-bit configuration indication (here, PRACH resource configuration indication information) is used to instruct the target terminal to decode the third index; after receiving the third index, the target terminal receives a bitmap from the first signaling or the second signaling to obtain an available second resource;

[0367] The target terminal uses the Bitmap (ie, bitmap) in the second signaling to quickly update the second resource.

[0368] The additional 1-bit configuration indication can indicate whether the RO is turned on or off within a certain period. For example, bitmap=10101010 means that the RO is alternately turned on in 8 consecutive periods; bitmap=1101 means that the RO resource is turned off in the third period of the next 4 periods.

[0369] Exemplarily, embodiment six (the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling) specifically includes:

[0370] The dynamic SSB adjustment scheme is determined by the network side device (for example, the base station) according to a predefined or base station implementation method. The SSB adjustment scheme includes but is not limited to the adjustment of the number of SSBs and the SSB burst (period, direction). The adjustment of the SSB will affect the configuration of the second resource. The adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling.

[0371] The target terminal decodes the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship, and then determines the first and second resources through the first index (or other index).

[0372] The target terminal receives the RACH-ConfigCommon parameter in the second signaling and uses the new RO mapping relationship;

[0373] The RACH-ConfigCommon parameter in the second signaling can be quickly updated.

[0374] Exemplary embodiment seven (the target terminal adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling) specifically includes:

[0375] The base station determines activation / deactivation of the second resource portion RO according to the SSB adjustment scheme. The SSB adjustment scheme includes but is not limited to adjustment of the number of SSBs and SSB burst (period, direction). The adjustment of the SSB will affect the configuration of the second resource. The activation / deactivation signaling is carried by the second signaling. The activation / deactivation signaling includes but is not limited to the form of a bitmap.

[0376] The target terminal activates / deactivates ROs for a certain period or number according to the activation / deactivation signaling sent by the base station.

[0377] The activation / deactivation signaling is carried by the second signaling and can be updated quickly.

[0378] Among them, the bitmap indicates the method:

[0379] The specific indication granularity of the bitmap is predefined and configured by the base station. The configuration parameter and the bitmap are independent and can indicate the activation / deactivation of one RO, a group of ROs, or a period of ROs.

[0380] The length of the bitmap is predefined and configured by the base station. This configuration parameter is independent of the bitmap.

[0381] For example, to indicate the validity of K consecutive ROs: bitmap = 1, 1, 0, 0. Then, among the 4K consecutive ROs, the first 2K are valid and the last 2K are invalid.

[0382] For example, to indicate the validity of RO for K consecutive cycles: bitmap = 1, 0, 0, 1. Then, in four consecutive RO cycles, the first and fourth are valid, and the second and third are invalid.

[0383] The period includes but is not limited to an RO configuration period and an SSB-RO mapping period.

[0384] In this application, additional RO resources can be configured for the target terminal without affecting the legacy UE, so that the network side equipment (such as the base station) has more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0385] Optionally, another embodiment of the present application provides a method for determining physical random access channel resources, which is applied to a target terminal. The method includes:

[0386] Receive a first signaling message, wherein the first signaling message carries a first index;

[0387] Determining a first resource according to a first index carried in the first signaling, and using the first resource for contention access;

[0388] Upon receiving the second signaling, switching to use a second resource for contention access, where the second resource is determined according to a second index carried in the second signaling;

[0389] The second resource is updated through the second signaling.

[0390] In an embodiment of the present application, the target terminal determines to use resources that can achieve energy saving, i.e., the second resource, through the index carried by the first signaling, thereby configuring additional RO resources for the target terminal (here referring to UE other than legacy UE, such as user terminals applicable to the Release 19 standard, i.e., R-19UE) without affecting the legacy UE, so that network side devices (e.g., base stations) have more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0391] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0392] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0393] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling, and subsequent updates of the second resources can be based on the second signaling carrying the index for determining the second resource and / or PRACH resource configuration indication information to achieve rapid updates of the second resources.

[0394] Optionally, the first resource is configured by SIB1, and the first resource is a random access opportunity RO time-frequency resource decoded and used by a currently deployed terminal legacy UE;

[0395] The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

[0396] Optionally, determining the first resource according to the first index carried in the first signaling includes:

[0397] Decoding the first index according to the first index table to determine the first resource;

[0398] The first index table is an index table used by legacy UEs; the first resource is a long-period RO resource, which is used to indicate an RO resource with a period longer than that configured when both the target terminal and the legacy UE exist.

[0399] In the embodiment of the present application, the first resource determined by the first index is a PRACH resource with a long period RO (resource) (such as 160ms), which ensures that the initial access process of the first terminal (such as a legacy UE) is not affected.

[0400] Optionally, upon receiving the second signaling, switching to use the second resource for contention access includes:

[0401] Upon receiving the second signaling, decoding the second index carried in the second signaling according to the second index table to obtain the second resource;

[0402] Switching the first resource and using the second resource for contention access;

[0403] The second index table adopts a more centralized RO resource configuration, and the more centralized RO resource configuration is used to indicate that the distribution of RO resources in the subframe is more centralized.

[0404] In an embodiment of the present application, the second resource determined by the second index can be a short-cycle or long-cycle PRACH cycle (e.g., 10ms, 20ms, 40ms, 80ms, 160ms), which can ensure a flexible initial access process for the second terminal; the second resource can also be a PRACH resource of 160ms and above (e.g., 160ms, 320ms, 640ms) to achieve higher energy-saving gains.

[0405] Optionally, the second index table is determined by any one of the following:

[0406] Modify some parameters in the first index table;

[0407] Introducing a new row based on the configuration of the first index table;

[0408] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0409] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0410] Optionally, the second resource is updated based on a second index carried in the second signaling.

[0411] Optionally, the method further includes:

[0412] Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or,

[0413] Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

[0414] Optionally, the method further includes:

[0415] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0416] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0417] Optionally, adjusting the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling includes:

[0418] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0419] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0420] Optionally, the method further includes:

[0421] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index.

[0422] Optionally, adjusting activation or deactivation of the second resource according to the SSB dynamic adjustment scheme in the second signaling includes:

[0423] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0424] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0425] Optionally, another embodiment of the present application provides a physical random access channel resource configuration method, applied to a target terminal, the method including:

[0426] receiving a first signaling; wherein the first signaling carries a third index and physical random access channel PRACH resource configuration indication information;

[0427] Decoding the third index according to the PRACH resource configuration indication information, and if the decoded index contains a second resource, using the second resource for contention access;

[0428] The second resource is updated through the second signaling.

[0429] In an embodiment of the present application, the target terminal determines to use resources that can achieve energy saving, i.e., the second resource, through the index carried by the first signaling, thereby configuring additional RO resources for the target terminal (here referring to UE other than legacy UE, such as user terminals applicable to the Release 19 standard, i.e., R-19UE) without affecting the legacy UE, so that network side devices (e.g., base stations) have more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0430] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0431] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0432] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling, and subsequent updates of the second resources can be based on the second signaling carrying the index for determining the second resource and / or PRACH resource configuration indication information to achieve rapid updates of the second resources.

[0433] Optionally, the first resource is configured by SIB1, and the first resource is a random access opportunity RO time-frequency resource decoded and used by a currently deployed terminal legacy UE;

[0434] The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

[0435] Optionally, the decoding the third index according to the PRACH resource configuration indication information includes:

[0436] If the PRACH resource configuration indication information is used to instruct the target terminal to use an offset to decode the third index, upon receiving the offset, decoding the third index according to the first index table and the offset to obtain the first resource and the second resource;

[0437] If the PRACH resource configuration indication information is used to instruct the target terminal to use the second index table to decode the third index, decoding the third index according to the second index table to obtain the second resource;

[0438] If the PRACH resource configuration indication information is used to instruct the target terminal to use a bitmap to decode the third index, upon receiving the bitmap, the third index is decoded according to the first index table and the bitmap to obtain the first resource and the second resource.

[0439] Optionally, the PRACH resource configuration indication information is carried by the first signaling or the second signaling.

[0440] Optionally, the offset is carried by the first signaling or the second signaling; the bitmap is carried by the first signaling or the second signaling.

[0441] In an embodiment of the present application, the PRACH resource configuration indication information can be transmitted in the first signaling or the second signaling, and updated as the first signaling or the second signaling is updated, thereby realizing the update of the second resource, so that the network side device has more opportunities to enter the energy-saving state, thereby realizing network energy saving.

[0442] Optionally, the second resource is updated based on a third index carried in the first signaling and PRACH resource configuration indication information carried in the second signaling.

[0443] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0444] Optionally, the method further includes:

[0445] Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or,

[0446] Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

[0447] Optionally, the method further includes:

[0448] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0449] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0450] Optionally, adjusting the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling includes:

[0451] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0452] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0453] Optionally, the method further includes:

[0454] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

[0455] Optionally, adjusting activation or deactivation of the second resource according to the SSB dynamic adjustment scheme in the second signaling includes:

[0456] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0457] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0458] Optionally, another embodiment of the present application provides a method for determining physical random access channel resources, which is applied to a target terminal. The method includes:

[0459] receiving a first signaling, wherein the first signaling carries a fourth index;

[0460] Determine a second resource according to the fourth index, and use the second resource for contention access, where the fourth index includes the first index and the second index;

[0461] The second resource is updated through the second signaling.

[0462] In an embodiment of the present application, the target terminal determines to use resources that can achieve energy saving, i.e., the second resource, through the index carried by the first signaling, thereby configuring additional RO resources for the target terminal (here referring to UE other than legacy UE, such as user terminals applicable to the Release 19 standard, i.e., R-19UE) without affecting the legacy UE, so that network side devices (e.g., base stations) have more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0463] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0464] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0465] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling, and subsequent updates of the second resources can be based on the second signaling carrying the index for determining the second resource and / or PRACH resource configuration indication information to achieve rapid updates of the second resources.

[0466] Optionally, the first resource is configured by SIB1, and the first resource is a random access opportunity RO time-frequency resource decoded and used by a currently deployed terminal legacy UE;

[0467] The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

[0468] Optionally, determining the second resource according to the fourth index includes:

[0469] According to the second index table, the second index in the fourth index is decoded to determine the second resource.

[0470] Optionally, the second index table is determined by any one of the following:

[0471] Modify some parameters in the first index table;

[0472] Introducing a new row based on the configuration of the first index table;

[0473] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0474] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0475] Optionally, the second resource is updated based on a second index carried in the second signaling.

[0476] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0477] Optionally, the method further includes:

[0478] Decoding the first index in the fourth index according to the first index table to obtain a first resource; wherein the use priority of the second resource is higher than the use priority of the first resource;

[0479] When the process using the second resource does not respond after sending the random access request for a preset time period, using the first resource for PRACH transmission;

[0480] When the process using the second resource does not respond after sending the random access request a preset number of times, the first resource is used for PRACH transmission.

[0481] In this embodiment of the present application, the fourth index includes two parts: a first index for determining the first resource, and a second index for determining the second resource. After the target terminal receives the second resource in the first signaling, the second resource is subsequently updated by the second index in the second signaling. That is, subsequent updates of the second resource are updated by the second index carried by the second signaling, thereby achieving rapid updates of the second resource and thus achieving network energy conservation.

[0482] Optionally, the method further includes:

[0483] Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or,

[0484] Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

[0485] Optionally, the method further includes:

[0486] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0487] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0488] Optionally, adjusting the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling includes:

[0489] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0490] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0491] Optionally, the method further includes:

[0492] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

[0493] Optionally, adjusting activation or deactivation of the second resource according to the SSB dynamic adjustment scheme in the second signaling includes:

[0494] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0495] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0496] Optionally, another embodiment of the present application provides a method for determining physical random access channel resources, which is applied to a target terminal. The method includes:

[0497] receiving a second signaling, where the second signaling carries a dynamic SSB adjustment scheme;

[0498] According to the SSB adjustment dynamic scheme in the second signaling, the mapping relationship between the second resource and SSB is adjusted; or, according to the SSB adjustment dynamic scheme in the second signaling, the activation or deactivation of the second resource is adjusted.

[0499] Optionally, the method further includes:

[0500] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0501] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0502] Optionally, adjusting the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling includes:

[0503] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0504] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0505] Optionally, the method further includes:

[0506] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

[0507] Optionally, adjusting activation or deactivation of the second resource according to the SSB dynamic adjustment scheme in the second signaling includes:

[0508] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0509] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0510] Optionally, another embodiment of the present application provides a method for determining physical random access channel resources, which is applied to a target terminal. The method includes:

[0511] receiving a second signaling;

[0512] The second resource is determined according to the second index carried by the second signaling; or the second resource is determined according to the PRACH resource configuration indication information carried by the second signaling and the third index carried by the received first signaling.

[0513] It should be noted here that the physical random access channel resource determination method provided in this application with the target terminal as the execution subject, its specific implementation process can refer to the embodiments shown in Figures 1 to 3, and the specific implementation process will not be repeated here.

[0514] Referring to Figure 4, Figure 4 is a flow chart of a method for configuring physical random access channel resources provided in an embodiment of the present application. The method for configuring physical random access channel resources is applied to a network-side device. The method includes (configuring resources for a target terminal):

[0515] Step 401: configure a first resource for a target terminal using a first index, and configure or update a second resource for the target terminal using a second index, wherein the first index is carried by a first signaling and the second index is carried by a second signaling; or

[0516] Step 402: Configure or update the first resource and the second resource for the target terminal using a third index or a fourth index, where the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling.

[0517] The second resource is updated through the second signaling.

[0518] The network side device (for example, the base station is used as an example below) configures the target terminal with a different PRACH configuration index (i.e., PRACH additional resource) than the Legacy UE in the following two ways:

[0519] Method 1: The base station uses the first index to configure a long-period RO resource (first resource) for the legacy UE and the target terminal, and then uses the second signaling to carry the second index to configure a PRACH additional resource (second resource) for the target terminal.

[0520] Method 2: The base station uses a third index to indicate RO resources for both the legacy UE and the target terminal. The third index is carried by the first signaling and is updated as the first signaling is updated. The second terminal can obtain the PRACH additional resource (second resource) after decoding the third index.

[0521] Method 3: The base station dynamically adjusts the second resource according to the SSB dynamic adjustment scheme, including re-changing the SSB-RO mapping relationship and activating / deactivating the RO. The second resource dynamic adjustment scheme is carried by the second signaling.

[0522] Mode 4: The base station uses the fourth index (including the first index and the second index) to indicate the first resource for the legacy UE and the first resource or the second resource for the target terminal, and uses the second index carried by the second signaling to update the PRACH additional resource (second resource) for the target terminal.

[0523] In an embodiment of the present application, a network-side device configures a first resource for a target terminal based on a first index, the first index being carried by a first signaling, and a network-side device configures a second resource for the target terminal based on a second index; or, the network-side device configures a second resource for the target terminal based on a third index or a fourth index that includes the second index. By configuring a second resource that can be quickly updated, the network-side device can adjust the second resource in a timely and flexible manner, thereby providing more opportunities to enter an energy-saving state, thereby achieving network energy saving.

[0524] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0525] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0526] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling. For subsequent updates of the second resource, the index of the second resource configured by the network side device and / or the PRACH resource configuration indication information can be carried based on the second signaling, and the second signaling can be sent to the target terminal to achieve rapid updates of the second resource, thereby achieving network energy saving.

[0527] Optionally, the method further includes:

[0528] Configuring the first resource through SIB1;

[0529] The first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE.

[0530] Optionally, the first signaling further carries PRACH resource configuration indication information; the PRACH resource configuration indication information is used to indicate any one of the following:

[0531] The target terminal decodes the third index using the offset;

[0532] The target terminal decodes the third index using the second index table;

[0533] The target terminal uses bitmap to decode the third index.

[0534] In an embodiment of the present application, the network side device can configure PRACH resource configuration indication information, which is carried by the first signaling or the second signaling. For example, during the initial configuration, the first signaling can carry the third index and the PRACH resource configuration indication information, indicating the start or stop of decoding the third index and / or the use of an offset (or bitmap) to decode the third index to obtain the second resource; in the subsequent update process, the PRACH resource configuration indication information can be carried by the second signaling to achieve rapid update, so that the second resource can be quickly updated, thereby achieving network energy saving.

[0535] Optionally, the second index table is determined by any one of the following:

[0536] Modify some parameters in the first index table;

[0537] Introducing a new row based on the configuration of the first index table;

[0538] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0539] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0540] Optionally, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0541] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0542] Optionally, the method further includes:

[0543] Determine the dynamic plan for SSB adjustment;

[0544] The SSB adjustment dynamic scheme is carried by the second signaling, and the SSB adjustment dynamic scheme is used to instruct the target terminal to dynamically adjust the second resource; the second resource is an RO time-frequency resource other than the first resource and cannot be decoded or used by the legacy UE.

[0545] Optionally, the SSB adjustment dynamic scheme is specifically used to instruct the target terminal to adjust the mapping relationship between the second resource and SSB according to the SSB adjustment dynamic scheme; or, the target terminal adjusts the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme.

[0546] In an embodiment of the present application, the network side device determines the indication information for adjusting the mapping relationship between the second resource and the SSB or adjusting the activation / deactivation of the second resource based on the SSB dynamic adjustment scheme, and carries the indication information by the second signaling to the target terminal, so that the target terminal updates the second resource based on the SSB dynamic adjustment scheme to achieve update diversity. At the same time, the RACH-ConfigCommon parameter or activation or deactivation indication information carried by the second signaling can be quickly updated, thereby achieving rapid update of the second resource, ensuring that the network side device has a greater chance of entering the energy-saving state and achieving network energy saving.

[0547] It should be noted here that the physical random access channel resource configuration method provided in this application with the network side device as the execution body, its specific implementation process can refer to the embodiments shown in Figures 2 to 4, and the specific implementation process will not be repeated here.

[0548] Figure 5 is a structural schematic diagram of the physical random access channel resource determination device provided in an embodiment of the present application. As shown in Figure 5, the physical random access channel resource determination device provided in this embodiment is applied to the target terminal. The physical random access channel resource determination device provided in this embodiment includes: a transceiver 500, which is used to receive and send data under the control of a processor 510.

[0549] In FIG5 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 510 and memory represented by memory 520. The bus architecture may also connect various other circuits such as peripheral devices, 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 transceiver 500 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 530 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0550] The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 510 when performing operations.

[0551] Optionally, the processor 510 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0552] The processor 510 is configured to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the program stored in the memory 520. The processor 510 and the memory 520 may also be physically separated.

[0553] In this embodiment, the memory 520 is used to store a computer program; the transceiver 500 is used to send and receive data under the control of the processor; and the processor 510 is used to read the computer program in the memory and perform the following operations:

[0554] receiving a first signaling;

[0555] If the first signaling carries a first index, determine a first resource according to the first index, and use the first resource for competitive access; upon receiving the second signaling, switch to using a second resource for competitive access, where the second resource is determined according to a second index carried in the second signaling;

[0556] If the first signaling carries a third index and physical random access channel (PRACH) resource configuration indication information, decoding the third index according to the PRACH resource configuration indication information, and if the decoded result contains a second resource, using the second resource for contention access;

[0557] If the first signaling carries a fourth index, determining a second resource according to the fourth index, and using the second resource for contention access, where the fourth index includes the first index and the second index;

[0558] The second resource is updated through the second signaling.

[0559] In an embodiment of the present application, the terminal determines to use resources that can achieve energy saving, i.e., the second resource, through the index carried by the first signaling, thereby configuring additional RO resources for the target terminal (e.g., R-19UE) without affecting the legacy UE, so that the network side equipment (e.g., base station) has more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0560] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0561] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0562] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling, and subsequent updates of the second resources can be based on the second signaling carrying the index for determining the second resource and / or PRACH resource configuration indication information to achieve rapid updates of the second resources.

[0563] Optionally, the first resource is configured by SIB1, and the first resource is a random access opportunity RO time-frequency resource decoded and used by a currently deployed terminal legacy UE;

[0564] The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

[0565] Optionally, the processor 510 is configured to determine the first resource according to the first index, including:

[0566] Decoding the first index according to the first index table to determine the first resource;

[0567] The first index table is an index table used by legacy UEs; the first resource is a long-period RO resource, which is used to indicate an RO resource with a period longer than that configured when both the target terminal and the legacy UE exist.

[0568] In the embodiment of the present application, the first resource determined by the first index is a PRACH resource with a long period RO (resource) (such as 160ms), which ensures that the initial access process of the first terminal (such as a legacy UE) is not affected.

[0569] Optionally, the processor 510 is configured to, upon receiving the second signaling, switch to using the second resource for contention access, specifically including:

[0570] Upon receiving the second signaling, decoding the second index carried in the second signaling according to the second index table to obtain the second resource;

[0571] Switching the first resource and using the second resource for contention access;

[0572] The second index table adopts a more centralized RO resource configuration, and the more centralized RO resource configuration is used to indicate that the distribution of RO resources in the subframe is more centralized.

[0573] In an embodiment of the present application, the second resource determined by the second index can be a short-cycle or long-cycle PRACH cycle (e.g., 10ms, 20ms, 40ms, 80ms, 160ms), which can ensure a flexible initial access process for the second terminal; the second resource can also be a PRACH resource of 160ms and above (e.g., 160ms, 320ms, 640ms) to achieve higher energy-saving gains.

[0574] Optionally, the second index table is determined by any one of the following:

[0575] Modify some parameters in the first index table;

[0576] Introducing a new row based on the configuration of the first index table;

[0577] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0578] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0579] Optionally, the processor 510 is configured to decode the third index according to the PRACH resource configuration indication information, specifically including:

[0580] If the PRACH resource configuration indication information is used to instruct the target terminal to use an offset to decode the third index, upon receiving the offset, decoding the third index according to the first index table and the offset to obtain the first resource and the second resource;

[0581] If the PRACH resource configuration indication information is used to instruct the target terminal to use the second index table to decode the third index, decoding the third index according to the second index table to obtain the second resource;

[0582] If the PRACH resource configuration indication information is used to instruct the target terminal to use a bitmap to decode the third index, upon receiving the bitmap, the third index is decoded according to the first index table and the bitmap to obtain the first resource and the second resource.

[0583] Optionally, the PRACH resource configuration indication information is carried by the first signaling or the second signaling.

[0584] Optionally, the offset is carried by the first signaling or the second signaling; the bitmap is carried by the first signaling or the second signaling.

[0585] In an embodiment of the present application, the PRACH resource configuration indication information can be transmitted in the first signaling or the second signaling, and updated as the first signaling or the second signaling is updated, thereby realizing the update of the second resource, so that the network side device has more opportunities to enter the energy-saving state, thereby realizing network energy saving.

[0586] Optionally, the processor 510 is configured to determine the second resource according to the fourth index, specifically including:

[0587] According to the second index table, the second index in the fourth index is decoded to determine the second resource.

[0588] Optionally, the processor 510 is further configured to perform the following operations:

[0589] Decoding the first index in the fourth index according to the first index table to obtain a first resource; wherein the use priority of the second resource is higher than the use priority of the first resource;

[0590] When the process using the second resource does not respond after sending the random access request for a preset time period, using the first resource for PRACH transmission;

[0591] When the process using the second resource does not respond after sending the random access request a preset number of times, the first resource is used for PRACH transmission.

[0592] In this embodiment of the present application, the fourth index includes two parts: a first index for determining the first resource, and a second index for determining the second resource. After the target terminal receives the second resource in the first signaling, the second resource is subsequently updated by the second index in the second signaling. That is, subsequent updates of the second resource are updated by the second index carried by the second signaling, thereby achieving rapid updates of the second resource and thus achieving network energy conservation.

[0593] Optionally, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0594] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0595] Optionally, the processor 510 is further configured to perform the following operations:

[0596] Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or,

[0597] Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

[0598] Optionally, the processor 510 is further configured to perform the following operations:

[0599] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0600] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0601] Optionally, the processor 510 is configured to adjust a mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, specifically including:

[0602] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0603] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0604] Optionally, the processor 510 is further configured to perform the following operations:

[0605] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

[0606] Optionally, the processor 510 is configured to adjust activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, specifically including:

[0607] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0608] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0609] It should be noted here that the physical random access channel resource determination device provided in the present application can implement all the method steps implemented by the method embodiment described in the first aspect above, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be described in detail here.

[0610] FIG6 is a second structural diagram of a device for determining physical random access channel resources provided in an embodiment of the present application. The device for determining physical random access channel resources provided in this embodiment is applied to a target terminal. The device for determining physical random access channel resources 600 provided in this embodiment includes:

[0611] The receiving unit 601 is configured to receive a first signaling;

[0612] a determining unit 602, configured to, when the first signaling carries a first index, determine a first resource according to the first index, and use the first resource for competitive access; and upon receiving a second signaling, switch to using a second resource for competitive access, where the second resource is determined according to a second index carried in the second signaling;

[0613] The determining unit 602 is further configured to, when the first signaling carries a third index and physical random access channel (PRACH) resource configuration indication information, decode the third index according to the PRACH resource configuration indication information, and if the decoded index contains a second resource, use the second resource for contention access;

[0614] The determining unit 602 is further configured to, when a fourth index is carried in the first signaling, determine a second resource according to the fourth index, and use the second resource for contention access, where the fourth index includes the first index and the second index;

[0615] The second resource is updated through the second signaling.

[0616] In an embodiment of the present application, the terminal determines to use resources that can achieve energy saving, i.e., the second resource, through the index carried by the first signaling, thereby configuring additional RO resources for the target terminal (e.g., R-19UE) without affecting the legacy UE, so that the network side equipment (e.g., base station) has more opportunities to enter the energy-saving state, thereby achieving network energy saving.

[0617] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0618] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0619] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling, and subsequent updates of the second resources can be based on the second signaling carrying the index for determining the second resource and / or PRACH resource configuration indication information to achieve rapid updates of the second resources.

[0620] Optionally, the first resource is configured by SIB1, and the first resource is a random access opportunity RO time-frequency resource decoded and used by a currently deployed terminal legacy UE;

[0621] The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

[0622] Optionally, the determining unit 602 is specifically configured to:

[0623] Decoding the first index according to the first index table to determine the first resource;

[0624] The first index table is an index table used by legacy UEs; the first resource is a long-period RO resource, which is used to indicate an RO resource with a period longer than that configured when both the target terminal and the legacy UE exist.

[0625] In the embodiment of the present application, the first resource determined by the first index is a PRACH resource with a long period RO (resource) (such as 160ms), which ensures that the initial access process of the first terminal (such as a legacy UE) is not affected.

[0626] Optionally, the determining unit 602 is specifically configured to:

[0627] Upon receiving the second signaling, decoding the second index carried in the second signaling according to the second index table to obtain the second resource;

[0628] Switching the first resource and using the second resource for contention access;

[0629] The second index table adopts a more centralized RO resource configuration, and the more centralized RO resource configuration is used to indicate that the distribution of RO resources in the subframe is more centralized.

[0630] In an embodiment of the present application, the second resource determined by the second index can be a short-cycle or long-cycle PRACH cycle (e.g., 10ms, 20ms, 40ms, 80ms, 160ms), which can ensure a flexible initial access process for the second terminal; the second resource can also be a PRACH resource of 160ms and above (e.g., 160ms, 320ms, 640ms) to achieve higher energy-saving gains.

[0631] Optionally, the second index table is determined by any one of the following:

[0632] Modify some parameters in the first index table;

[0633] Introducing a new row based on the configuration of the first index table;

[0634] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0635] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0636] Optionally, the determining unit 602 is specifically configured to:

[0637] If the PRACH resource configuration indication information is used to instruct the target terminal to use an offset to decode the third index, upon receiving the offset, decoding the third index according to the first index table and the offset to obtain the first resource and the second resource;

[0638] If the PRACH resource configuration indication information is used to instruct the target terminal to use the second index table to decode the third index, decoding the third index according to the second index table to obtain the second resource;

[0639] If the PRACH resource configuration indication information is used to instruct the target terminal to use a bitmap to decode the third index, upon receiving the bitmap, the third index is decoded according to the first index table and the bitmap to obtain the first resource and the second resource.

[0640] Optionally, the PRACH resource configuration indication information is carried by the first signaling or the second signaling.

[0641] Optionally, the offset is carried by the first signaling or the second signaling; the bitmap is carried by the first signaling or the second signaling.

[0642] In an embodiment of the present application, the PRACH resource configuration indication information can be transmitted in the first signaling or the second signaling, and updated as the first signaling or the second signaling is updated, thereby realizing the update of the second resource, so that the network side device has more opportunities to enter the energy-saving state, thereby realizing network energy saving.

[0643] Optionally, the determining unit 602 is specifically configured to:

[0644] According to the second index table, the second index in the fourth index is decoded to determine the second resource.

[0645] Optionally, the device further includes: a processing unit; the processing unit is configured to:

[0646] Decoding the first index in the fourth index according to the first index table to obtain a first resource; wherein the use priority of the second resource is higher than the use priority of the first resource;

[0647] When the process using the second resource does not respond after sending the random access request for a preset time period, using the first resource for PRACH transmission;

[0648] When the process using the second resource does not respond after sending the random access request a preset number of times, the first resource is used for PRACH transmission.

[0649] In this embodiment of the present application, the fourth index includes two parts: a first index for determining the first resource, and a second index for determining the second resource. After the target terminal receives the second resource in the first signaling, the second resource is subsequently updated by the second index in the second signaling. That is, subsequent updates of the second resource are updated by the second index carried by the second signaling, thereby achieving rapid updates of the second resource and thus achieving network energy conservation.

[0650] Optionally, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0651] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0652] Optionally, the device further includes an updating unit, wherein the updating unit is configured to:

[0653] Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or,

[0654] Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

[0655] Optionally, the processing unit is further configured to:

[0656] Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship;

[0657] The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

[0658] Optionally, the updating unit is specifically configured to:

[0659] receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling;

[0660] According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

[0661] Optionally, the updating unit is specifically configured to:

[0662] According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

[0663] Optionally, the updating unit is specifically configured to:

[0664] According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

[0665] In an embodiment of the present application, the target terminal adjusts the mapping relationship between the second resource and the SSB according to the SSB adjustment dynamic scheme in the second signaling, or adjusts the activation / deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, thereby realizing the diversity of second resource updates based on the SSB adjustment dynamic scheme. At the same time, the RACH-ConfigCommon parameter or activation or deactivation information carried by the second signaling can be quickly updated, thereby realizing a rapid update of the second resource, so that the network side device can have a greater chance of entering the energy-saving state and realizing network energy saving.

[0666] It should be noted here that the physical random access channel resource determination device provided in the present application can implement all the method steps implemented by the method embodiment described in the first aspect above, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be described in detail here.

[0667] Figure 7 is a structural schematic diagram of the physical random access channel resource configuration device provided in an embodiment of the present application. As shown in Figure 7, the physical random access channel resource configuration device provided in this embodiment is applied to a network side device. The physical random access channel resource configuration device provided in this embodiment includes: a transceiver 700, which is used to receive and send data under the control of a processor 710.

[0668] In FIG7 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 710 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripheral devices, 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 transceiver 700 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like. The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 710 when performing operations.

[0669] The processor 710 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0670] In this embodiment, the memory 720 is used to store computer programs; the transceiver 700 is used to send and receive data under the control of the processor; and the processor 710 is used to read the computer program in the memory and perform the following operations:

[0671] Configuring a first resource for a target terminal through a first index, and configuring or updating a second resource for the target terminal through a second index, wherein the first index is carried by a first signaling and the second index is carried by a second signaling; or

[0672] Configuring or updating the first resource and the second resource for the target terminal through a third index or a fourth index, where the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling;

[0673] The second resource is updated through the second signaling.

[0674] In an embodiment of the present application, a network-side device configures a first resource for a target terminal based on a first index, the first index being carried by a first signaling, and a network-side device configures a second resource for the target terminal based on a second index; or, the network-side device configures a second resource for the target terminal based on a third index or a fourth index that includes the second index. By configuring a second resource that can be quickly updated, the network-side device can adjust the second resource in a timely and flexible manner, thereby providing more opportunities to enter an energy-saving state, thereby achieving network energy saving.

[0675] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0676] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0677] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling. For subsequent updates of the second resource, the index of the second resource configured by the network side device and / or the PRACH resource configuration indication information can be carried based on the second signaling, and the second signaling can be sent to the target terminal to achieve rapid updates of the second resource, thereby achieving network energy saving.

[0678] Optionally, the processor 710 is further configured to perform the following operations:

[0679] Configuring the first resource through SIB1;

[0680] The first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE.

[0681] Optionally, the first signaling further carries PRACH resource configuration indication information; the PRACH resource configuration indication information is used to indicate any one of the following:

[0682] The target terminal decodes the third index using the offset;

[0683] The target terminal decodes the third index using the second index table;

[0684] The target terminal uses bitmap to decode the third index.

[0685] In an embodiment of the present application, the network side device can configure PRACH resource configuration indication information, which is carried by the first signaling or the second signaling. For example, during the initial configuration, the first signaling can carry the third index and the PRACH resource configuration indication information, indicating the start or stop of decoding the third index and / or the use of an offset (or bitmap) to decode the third index to obtain the second resource; in the subsequent update process, the PRACH resource configuration indication information can be carried by the second signaling to achieve rapid update, so that the second resource can be quickly updated, thereby achieving network energy saving.

[0686] Optionally, the second index table is determined by any one of the following:

[0687] Modify some parameters in the first index table;

[0688] Introducing a new row based on the configuration of the first index table;

[0689] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0690] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0691] Optionally, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0692] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0693] Optionally, the processor 710 is further configured to perform the following operations:

[0694] Determine the dynamic plan for SSB adjustment;

[0695] The SSB adjustment dynamic scheme is carried by the second signaling, and the SSB adjustment dynamic scheme is used to instruct the target terminal to dynamically adjust the second resource; the second resource is an RO time-frequency resource other than the first resource and cannot be decoded or used by the legacy UE.

[0696] Optionally, the SSB adjustment dynamic scheme is specifically used to instruct the target terminal to adjust the mapping relationship between the second resource and SSB according to the SSB adjustment dynamic scheme; or, the target terminal adjusts the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme.

[0697] In an embodiment of the present application, the network side device determines the indication information for adjusting the mapping relationship between the second resource and the SSB or adjusting the activation / deactivation of the second resource based on the SSB dynamic adjustment scheme, and carries the indication information by the second signaling to the target terminal, so that the target terminal updates the second resource based on the SSB dynamic adjustment scheme to achieve update diversity. At the same time, the RACH-ConfigCommon parameter or activation or deactivation indication information carried by the second signaling can be quickly updated, thereby achieving rapid update of the second resource, ensuring that the network side device has a greater chance of entering the energy-saving state and achieving network energy saving.

[0698] It should be noted here that the physical random access channel resource configuration device provided in the present application can implement all the method steps implemented by the method embodiment described in the second aspect above, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be described in detail here.

[0699] FIG8 is a second structural diagram of a physical random access channel resource configuration apparatus provided in an embodiment of the present application. As shown in FIG8 , the physical random access channel resource configuration apparatus provided in this embodiment is applied to a network-side device. The physical random access channel resource configuration apparatus 800 provided in this embodiment includes:

[0700] The first configuration unit 801 is configured to configure a first resource for a target terminal through a first index, and configure or update a second resource for the target terminal through a second index, where the first index is carried by a first signaling and the second index is carried by a second signaling; or

[0701] A second configuration unit 802 is configured to configure or update a first resource and a second resource for the target terminal through a third index or a fourth index, where the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling;

[0702] The second resource is updated through the second signaling.

[0703] In an embodiment of the present application, a network-side device configures a first resource for a target terminal based on a first index, the first index being carried by a first signaling, and a network-side device configures a second resource for the target terminal based on a second index; or, the network-side device configures a second resource for the target terminal based on a third index or a fourth index that includes the second index. By configuring a second resource that can be quickly updated, the network-side device can adjust the second resource in a timely and flexible manner, thereby providing more opportunities to enter an energy-saving state, thereby achieving network energy saving.

[0704] Optionally, the first signaling is system information block SIB1 signaling or radio resource control RRC signaling;

[0705] The second signaling includes any one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

[0706] In an embodiment of the present application, the second signaling can achieve faster updates compared to the first signaling. For subsequent updates of the second resource, the index of the second resource configured by the network side device and / or the PRACH resource configuration indication information can be carried based on the second signaling, and the second signaling can be sent to the target terminal to achieve rapid updates of the second resource, thereby achieving network energy saving.

[0707] Optionally, the first configuration unit 801 is further configured to:

[0708] Configuring the first resource through SIB1;

[0709] The first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE.

[0710] Optionally, the first signaling further carries PRACH resource configuration indication information; the PRACH resource configuration indication information is used to indicate any one of the following:

[0711] The target terminal decodes the third index using the offset;

[0712] The target terminal decodes the third index using the second index table;

[0713] The target terminal uses bitmap to decode the third index.

[0714] In an embodiment of the present application, the network side device can configure PRACH resource configuration indication information, which is carried by the first signaling or the second signaling. For example, during the initial configuration, the first signaling can carry the third index and the PRACH resource configuration indication information, indicating the start or stop of decoding the third index and / or the use of an offset (or bitmap) to decode the third index to obtain the second resource; in the subsequent update process, the PRACH resource configuration indication information can be carried by the second signaling to achieve rapid update, so that the second resource can be quickly updated, thereby achieving network energy saving.

[0715] Optionally, the second index table is determined by any one of the following:

[0716] Modify some parameters in the first index table;

[0717] Introducing a new row based on the configuration of the first index table;

[0718] Based on the first index table, RO resources of multiple periods are centrally configured into one period.

[0719] In the embodiment of the present application, the second index table is enhanced on the original basis and uses a more centralized RO configuration to obtain energy-saving gains.

[0720] Optionally, the second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

[0721] In an embodiment of the present application, since the second resource is updated along with the second signaling, and the second signaling can be updated faster than the first signaling, the second resource can be updated faster, thereby ensuring that the network side device has a greater chance of entering an energy-saving state and achieving network energy saving.

[0722] Optionally, the device further comprises: a determining unit; the determining unit is configured to

[0723] Determine the dynamic plan for SSB adjustment;

[0724] The SSB adjustment dynamic scheme is carried by the second signaling, and the SSB adjustment dynamic scheme is used to instruct the target terminal to dynamically adjust the second resource; the second resource is an RO time-frequency resource other than the first resource and cannot be decoded or used by the legacy UE.

[0725] Optionally, the SSB adjustment dynamic scheme is specifically used to instruct the target terminal to adjust the mapping relationship between the second resource and SSB according to the SSB adjustment dynamic scheme; or, the target terminal adjusts the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme.

[0726] In an embodiment of the present application, the network side device determines the indication information for adjusting the mapping relationship between the second resource and the SSB or adjusting the activation / deactivation of the second resource based on the SSB dynamic adjustment scheme, and carries the indication information by the second signaling to the target terminal, so that the target terminal updates the second resource based on the SSB dynamic adjustment scheme to achieve update diversity. At the same time, the RACH-ConfigCommon parameter or activation or deactivation indication information carried by the second signaling can be quickly updated, thereby achieving rapid update of the second resource, ensuring that the network side device has a greater chance of entering the energy-saving state and achieving network energy saving.

[0727] It should be noted here that the physical random access channel resource configuration device provided in the present application can implement all the method steps implemented by the method embodiment described in the second aspect above, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be described in detail here.

[0728] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0729] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the method described in each embodiment of the present application.

[0730] The present application also provides a non-transitory readable storage medium that stores a computer program configured to cause a processor to execute any of the above method embodiments.

[0731] Among them, the non-transitory readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drives (SSDs)), etc.

[0732] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can 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 can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) that contain computer-usable program code.

[0733] The present application is described with reference to the flowchart and / or block diagram of the method, device (system), and computer program product according to the embodiment of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, and the combination of the process and / or box in the flowchart and / or block diagram can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processing machine 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 produce a device for implementing the function specified in one process or multiple processes in the flowchart and / or one box or multiple boxes in the block diagram.

[0734] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0735] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A method for determining physical random access channel resources, wherein: Applied to a target terminal, the method includes: receiving a first signaling; If the first signaling carries a first index, determine a first resource according to the first index, and use the first resource for competitive access; upon receiving the second signaling, switch to using a second resource for competitive access, where the second resource is determined according to a second index carried in the second signaling; If the first signaling carries a third index and physical random access channel (PRACH) resource configuration indication information, decoding the third index according to the PRACH resource configuration indication information, and if the decoded result contains a second resource, using the second resource for contention access; If the first signaling carries a fourth index, a second resource is determined according to the fourth index, and the second resource is used for competitive access, where the fourth index includes the first index and the second index.

2. The method according to claim 1, wherein The second resource is updated through the second signaling.

3. The method according to claim 1 or 2, wherein: The first signaling is system information block SIB1 signaling or radio resource control RRC signaling; The second signaling includes at least one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

4. The method according to claim 1 or 2, wherein: The first resource is configured by SIB1, and the first resource is a random access opportunity RO time-frequency resource decoded and used by a currently deployed terminal legacy UE; The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

5. The method according to any one of claims 1 to 4, wherein: The determining the first resource according to the first index includes: Decoding the first index according to the first index table to determine the first resource; The first index table is an index table used by legacy UEs; the first resource is a long-period RO resource, which is used to indicate an RO resource with a period longer than that configured when both the target terminal and the legacy UE exist.

6. The method according to claim 5, wherein: The switching to use the second resource for contention access upon receiving the second signaling includes: Upon receiving the second signaling, decoding the second index carried in the second signaling according to the second index table to obtain the second resource; Switching the first resource and using the second resource for contention access; The second index table adopts a more centralized RO resource configuration, and the more centralized RO resource configuration is used to indicate that the distribution of RO resources in the subframe is more centralized.

7. The method according to claim 6, wherein: The second index table is determined by any one of the following: Modify some parameters in the first index table; Introducing a new row based on the configuration of the first index table; Based on the first index table, RO resources of multiple periods are centrally configured into one period.

8. The method according to claim 7, wherein: The decoding the third index according to the PRACH resource configuration indication information includes: If the PRACH resource configuration indication information is used to instruct the target terminal to use an offset to decode the third index, upon receiving the offset, decoding the third index according to the first index table and the offset to obtain the first resource and the second resource; If the PRACH resource configuration indication information is used to instruct the target terminal to use the second index table to decode the third index, decoding the third index according to the second index table to obtain the second resource; If the PRACH resource configuration indication information is used to instruct the target terminal to use a bitmap to decode the third index, upon receiving the bitmap, the third index is decoded according to the first index table and the bitmap to obtain the first resource and the second resource.

9. The method according to claim 1, wherein The PRACH resource configuration indication information is carried by the first signaling or the second signaling.

10. The method according to claim 8, wherein The offset is carried by the first signaling or the second signaling; the bitmap is carried by the first signaling or the second signaling.

11. The method according to claim 6, wherein: The determining the second resource according to the fourth index includes: According to the second index table, the second index in the fourth index is decoded to determine the second resource.

12. The method according to claim 11, wherein The method further comprises: Decoding the first index in the fourth index according to the first index table to obtain a first resource; wherein the use priority of the second resource is higher than the use priority of the first resource; When the process using the second resource does not respond after sending the random access request for a preset time period, using the first resource for PRACH transmission; When the process using the second resource does not respond after sending the random access request a preset number of times, the first resource is used for PRACH transmission.

13. The method according to any one of claims 1 to 4, wherein: The second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

14. The method according to any one of claims 1 to 4, wherein: The method further comprises: Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or, Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

15. The method according to claim 14, wherein The method further comprises: Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship; The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

16. The method according to claim 15, wherein The adjusting, according to the dynamic SSB adjustment scheme in the second signaling, the mapping relationship between the second resource and the SSB includes: receiving a RACH-ConfigCommon parameter in the second signaling; wherein the dynamic SSB adjustment scheme is carried by the RACH-ConfigCommon parameter in the second signaling; According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

17. The method according to claim 16, wherein The method further comprises: According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

18. The method according to claim 15, wherein The adjusting activation or deactivation of the second resource according to the SSB dynamic adjustment scheme in the second signaling includes: According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

19. A method for configuring physical random access channel resources, wherein: Applied to a network-side device, the method includes: Configuring a first resource for a target terminal through a first index, and configuring or updating a second resource for the target terminal through a second index, wherein the first index is carried by a first signaling and the second index is carried by a second signaling; or The first resource and the second resource are configured or updated for the target terminal through the third index or the fourth index, the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling.

20. The method according to claim 19, wherein The second signaling is SIB signaling.

21. The method according to claim 19 or 20, wherein The first signaling is system information block SIB1 signaling or radio resource control RRC signaling; The second signaling includes at least one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

22. The method according to claim 19, wherein The method further comprises: Configuring the first resource through SIB1; The first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE.

23. The method according to any one of claims 19 to 22, wherein: The first signaling further carries PRACH resource configuration indication information; the PRACH resource configuration indication information is used to indicate any of the following: The target terminal decodes the third index using the offset; The target terminal decodes the third index using the second index table; The target terminal uses bitmap to decode the third index.

24. The method according to claim 23, wherein The second index table is determined by any one of the following: Modify some parameters in the first index table; Introducing a new row based on the configuration of the first index table; Based on the first index table, RO resources of multiple periods are centrally configured into one period.

25. The method according to any one of claims 19 to 22, wherein: The second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

26. The method according to claim 23, wherein The method further comprises: Determine the dynamic plan for SSB adjustment; The SSB adjustment dynamic scheme is carried by the second signaling, and the SSB adjustment dynamic scheme is used to instruct the target terminal to dynamically adjust the second resource; the second resource is an RO time-frequency resource other than the first resource and cannot be decoded or used by the legacy UE.

27. The method according to claim 26, wherein The SSB adjustment dynamic scheme is used to instruct the target terminal to adjust the mapping relationship between the second resource and SSB according to the SSB adjustment dynamic scheme; or, the target terminal adjusts the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme.

28. A device for determining physical random access channel resources, wherein: The device is applied to a target terminal and includes a memory, a transceiver, and a processor. Memory for storing computer programs; a transceiver, configured to transmit and receive data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: receiving a first signaling; If the first signaling carries a first index, determine a first resource according to the first index, and use the first resource for competitive access; upon receiving the second signaling, switch to using a second resource for competitive access, where the second resource is determined according to a second index carried in the second signaling; If the first signaling carries a third index and physical random access channel (PRACH) resource configuration indication information, decoding the third index according to the PRACH resource configuration indication information, and if the decoded result contains a second resource, using the second resource for contention access; If the first signaling carries a fourth index, a second resource is determined according to the fourth index, and the second resource is used for competitive access, where the fourth index includes the first index and the second index.

29. The apparatus according to claim 28, wherein The second resource is updated through the second signaling.

30. The device according to claim 28 or 29, wherein The first signaling is system information block SIB1 signaling or radio resource control RRC signaling; The second signaling includes at least one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

31. The apparatus according to claim 28 or 29, wherein The first resource is configured by SIB1, and the first resource is a random access opportunity RO time-frequency resource decoded and used by a currently deployed terminal legacy UE; The second resource is an RO time-frequency resource other than the first resource and which cannot be decoded or used by the legacy UE.

32. The device according to any one of claims 28 to 31, wherein The processor is configured to determine a first resource according to the first index, including: Decoding the first index according to the first index table to determine the first resource; The first index table is an index table used by legacy UEs; the first resource is a long-period RO resource, which is used to indicate an RO resource with a period longer than that configured when both the target terminal and the legacy UE exist.

33. The apparatus according to claim 32, wherein The processor is configured to switch to using the second resource for contention access upon receiving the second signaling, including: Upon receiving the second signaling, decoding the second index carried in the second signaling according to the second index table to obtain the second resource; Switching the first resource and using the second resource for contention access; The second index table adopts a more centralized RO resource configuration, and the more centralized RO resource configuration is used to indicate that the distribution of RO resources in the subframe is more centralized.

34. The apparatus according to claim 33, wherein The second index table is determined by any one of the following: Modify some parameters in the first index table; Introducing a new row based on the configuration of the first index table; Based on the first index table, RO resources of multiple periods are centrally configured into one period.

35. The apparatus of claim 34, wherein: The processor is configured to decode the third index according to the PRACH resource configuration indication information, including: If the PRACH resource configuration indication information is used to instruct the target terminal to use an offset to decode the third index, upon receiving the offset, decoding the third index according to the first index table and the offset to obtain the first resource and the second resource; If the PRACH resource configuration indication information is used to instruct the target terminal to use the second index table to decode the third index, decoding the third index according to the second index table to obtain the second resource; If the PRACH resource configuration indication information is used to instruct the target terminal to use a bitmap to decode the third index, upon receiving the bitmap, the third index is decoded according to the first index table and the bitmap to obtain the first resource and the second resource.

36. The apparatus of claim 28, wherein: The PRACH resource configuration indication information is carried by the first signaling or the second signaling.

37. The apparatus according to claim 36, wherein The offset is carried by the first signaling or the second signaling; the bitmap is carried by the first signaling or the second signaling.

38. The apparatus of claim 33, wherein: The processor is configured to determine the second resource according to the fourth index, including: According to the second index table, the second index in the fourth index is decoded to determine the second resource.

39. The apparatus according to claim 38, wherein The processor is further configured to perform the following operations: Decoding the first index in the fourth index according to the first index table to obtain a first resource; wherein the use priority of the second resource is higher than the use priority of the first resource; When the process using the second resource does not respond after sending the random access request for a preset time period, using the first resource for PRACH transmission; When the process using the second resource does not respond after sending the random access request a preset number of times, the first resource is used for PRACH transmission.

40. The device according to any one of claims 28 to 31, wherein The second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

41. The device according to any one of claims 28 to 31, wherein The processor is further configured to perform the following operations: Adjust the mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling; or, Adjust the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling.

42. The apparatus according to claim 41, wherein The processor is further configured to perform the following operations: Decoding the RACH-ConfigCommon parameter in the first signaling to obtain the initially configured SSB-RO mapping relationship; The first resource and the second resource are determined according to the initially configured SSB-RO mapping relationship.

43. The apparatus according to claim 42, wherein The processor is configured to adjust a mapping relationship between the second resource and the SSB according to the dynamic SSB adjustment scheme in the second signaling, including: receiving a RACH-ConfigCommon parameter in the second signaling; wherein the SSB adjustment dynamic scheme is carried by the RACH-ConfigCommon parameter in the second signaling; According to the SSB dynamic adjustment scheme, the mapping relationship between the second resource and the SSB in the SSB-RO mapping relationship is adjusted to determine the adjusted SSB-RO mapping relationship.

44. The apparatus of claim 43, wherein: The processor is further configured to perform the following operations: According to the adjusted SSB-RO mapping relationship, the first resource and / or the second resource is determined through the target index; wherein the target index includes any one of the following: the first index, the second index, the third index, and the fourth index.

45. The apparatus of claim 42, wherein: The processor is configured to adjust activation or deactivation of the second resource according to the SSB adjustment dynamic scheme in the second signaling, including: According to the SSB dynamic adjustment scheme in the second signaling, the second resources of a predefined period or a predefined number are activated or deactivated.

46. ​​A physical random access channel resource configuration device, wherein: The device is applied to a network side device, and includes: a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Configuring a first resource for a target terminal through a first index, and configuring or updating a second resource for the target terminal through a second index, wherein the first index is carried by a first signaling and the second index is carried by a second signaling; or The first resource and the second resource are configured or updated for the target terminal through the third index or the fourth index, the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling.

47. The apparatus of claim 46, wherein: The second resource is updated through the second signaling.

48. The apparatus according to claim 46 or 47, wherein The first signaling is system information block SIB1 signaling or radio resource control RRC signaling; The second signaling includes at least one of the following: downlink control information DCI signaling, SIB signaling, RRC signaling, and media access control layer control element MAC CE signaling.

49. The apparatus of claim 46, wherein The processor is further configured to perform the following operations: Configuring the first resource through SIB1; The first resource is a random access opportunity (RO) time-frequency resource decoded and used by a currently deployed terminal legacy UE.

50. The device according to any one of claims 46 to 49, wherein The first signaling further carries PRACH resource configuration indication information; the PRACH resource configuration indication information is used to indicate any of the following: The target terminal decodes the third index using the offset; The target terminal decodes the third index using the second index table; The target terminal uses bitmap to decode the third index.

51. The apparatus of claim 50, wherein: The second index table is determined by any one of the following: Modify some parameters in the first index table; Introducing a new row based on the configuration of the first index table; Based on the first index table, RO resources of multiple periods are centrally configured into one period.

52. The device according to any one of claims 46 to 59, wherein The second resource is updated based on the third index carried in the first signaling and the PRACH resource configuration indication information carried in the second signaling, or the second resource is updated based on the second index carried in the second signaling.

53. The apparatus of claim 50, wherein: The processor is further configured to perform the following operations: Determine the dynamic plan for SSB adjustment; The SSB adjustment dynamic scheme is carried by the second signaling, and the SSB adjustment dynamic scheme is used to instruct the target terminal to dynamically adjust the second resource; the second resource is an RO time-frequency resource other than the first resource and cannot be decoded or used by the legacy UE.

54. The apparatus of claim 53, wherein: The SSB adjustment dynamic scheme is used to instruct the target terminal to adjust the mapping relationship between the second resource and SSB according to the SSB adjustment dynamic scheme; or, the target terminal adjusts the activation or deactivation of the second resource according to the SSB adjustment dynamic scheme.

55. A device for determining physical random access channel resources, wherein: The device is applied to a target terminal, and includes: A receiving unit, configured to receive a first signaling; a determining unit, configured to, when a first index is carried in the first signaling, determine a first resource according to the first index, and use the first resource for competitive access; and upon receiving the second signaling, switch to using a second resource for competitive access, where the second resource is determined according to a second index carried in the second signaling; The determining unit is further configured to, when the first signaling carries a third index and physical random access channel (PRACH) resource configuration indication information, decode the third index according to the PRACH resource configuration indication information, and if the decoded index contains a second resource, use the second resource for contention access; The determination unit is further configured to determine a second resource according to a fourth index carried in the first signaling, and use the second resource for competitive access, where the fourth index includes the first index and the second index.

56. A physical random access channel resource configuration device, wherein: The device is applied to a network side device, and the device includes: A first configuration unit is configured to configure a first resource for a target terminal through a first index, and to configure or update a second resource for the target terminal through a second index, wherein the first index is carried by a first signaling and the second index is carried by a second signaling; or The second configuration unit is used to configure or update the first resource and the second resource for the target terminal through a third index or a fourth index, where the fourth index includes the first index and the second index, and the third index or the fourth index is carried by the first signaling.

57. A non-transitory readable storage medium, wherein: The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 27.

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