Method and apparatus for determining random access occasion set, and storage medium

Abstract

Provided in the present disclosure are a method and apparatus for determining a random access occasion (RO) set, and a storage medium. The method for determining a RO set is applied to a terminal, and comprises: determining a target PO set, and then determining a target RO set on the basis of the target PO set and a first association relationship, wherein the target PO set is one of M PO sets, the target RO set is one of N RO sets, the M PO sets have the first association relationship with the N RO sets, and M and N are both positive integers.

Description

Method and device for determining random access occasion set and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application No. 2024110942652, filed on August 9, 2024, and entitled "Method and device for determining random access occasion set and storage medium", which is incorporated by reference herein in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the field of communication technology, and in particular, to a method and device for determining a random access occasion set and a storage medium. BACKGROUND

[0004] In the current network energy saving (NES) method, more paging occasions (POs) / paging frames (PFs) are concentrated in a unit of time to reduce the number of paging initiated by a base station, thereby achieving energy saving.

[0005] However, the concentration of POs / PFs can cause some user equipment / terminals (UEs) to fail to successfully access, increase the random access latency, and cause energy waste. SUMMARY

[0006] Embodiments of the present disclosure provide a method and device for determining a random access occasion set and a storage medium to solve the technical problem of energy waste caused by the concentration of POs / PFs in related technologies.

[0007] In a first aspect, embodiments of the present disclosure provide a method for determining a random access occasion set, applied to a terminal UE, comprising:

[0008] determining a target paging occasion (PO) set; the target PO set is one of M PO sets;

[0009] determining a target random access occasion (RO) set based on the target PO set and a first association relationship; the target RO set is one of N RO sets, and the M PO sets and the N RO sets have a first association relationship; M and N are both positive integers.

[0010] In some embodiments, the ROs included in one RO set include at least one of the following:

[0011] ROs corresponding to J times of synchronization signal block (SSB) to RO mapping; J is a positive integer;

[0012] K PRACH occasions (ROs) associated with a PRACH association period, where K is a positive integer;

[0013] L ROs associated with a PRACH association pattern period, where L is a positive integer;

[0014] S ROs associated with a PRACH configuration period, where S is a positive integer;

[0015] ROs corresponding to a first time duration, where the first time duration is predefined or configured by a network.

[0016] In some embodiments, the first association relationship includes at least one of:

[0017] An i-th PO set in the M PO sets is associated with a j-th RO set in the N RO sets, where i is a positive integer and the value range of i is 1 to M, and j is a positive integer and the value range of j is 1 to N;

[0018] An i-th PO set in the M PO sets is associated with an i+k-th RO set in the N RO sets, where k is a mapping relationship shift parameter and the mapping relationship shift parameter is configured by a network device;

[0019] A plurality of PO sets in the M PO sets are associated with a j-th RO set in the N RO sets;

[0020] An i-th PO set in the M PO sets is associated with a plurality of RO sets in the N RO sets.

[0021] In some embodiments, the method further includes:

[0022] determining a first parameter, where the first parameter includes at least one of:

[0023] a first grouping number parameter, where the first grouping number parameter is a number of PO sets;

[0024] a PO set size parameter, where the PO set size parameter is a number of POs in each set to which each mapping in each round of grouping is performed, and each round of grouping includes one or more mappings;

[0025] a PO number parameter, where the PO number parameter is a logical sequence number of a PO in a paging radio frame (PF).

[0026] In some embodiments, the determining of the target PO set includes:

[0027] determining a number of the target PO set based on the first parameter;

[0028] determining the target PO set from the M PO sets according to the number of the target PO set.

[0029] In some embodiments, the determining the number of the target PO set based on the first parameter comprises:

[0030] taking the quotient of the number of POs that the UE monitors and the first group quantity parameter as the number of the target PO set; or

[0031] taking the modulo of the number of POs that the UE monitors and the first group quantity parameter as the number of the target PO set; or

[0032] taking the difference between the number of POs that the UE monitors and the first PO quantity as the number of the target PO set; the first PO quantity is the number of POs of a first type contained in a PF to which the POs that the UE monitors belong.

[0033] In some embodiments, the method further comprises:

[0034] grouping the POs in one PF based on the first parameter to obtain M PO sets.

[0035] In some embodiments, in the case that the number of POs in the PF is an integer multiple of the first group quantity parameter, the grouping the POs in one PF based on the first parameter to obtain M PO sets comprises:

[0036] equally dividing the POs in the PF based on the first group quantity parameter to obtain the first group quantity parameter PO sets.

[0037] In some embodiments, in the case that the number of POs in the PF is not an integer multiple of the first group quantity parameter, the grouping the POs in one PF based on the first parameter to obtain M PO sets comprises:

[0038] grouping the POs in the PF based on the first group quantity parameter to obtain the first group quantity parameter initial sets; the number of POs in each initial set is equal to the value obtained by taking the quotient of the number of POs in the PF and the first group quantity parameter as an integer.

[0039] allocating the tail POs to the first initial set or the last initial set among the first group quantity parameter initial sets to obtain the first group quantity parameter PO sets; the tail POs refer to the POs remaining after the POs in the PF are grouped into the first group quantity parameter initial sets.

[0040] In some embodiments, the grouping the POs in one PF based on the first parameter comprises:

[0041] Mapping the POs in the PF to the first grouping number parameter of PO sets based on the first grouping number parameter and through one or more rounds of grouping, with a PO set size parameter of POs as a mapping unit.

[0042] In some embodiments, the mapping the POs in the PF to the first grouping number parameter of PO sets comprises:

[0043] Arranging the POs in the PF in ascending order according to a number parameter of the POs;

[0044] Mapping the POs in the PF to the first grouping number parameter of PO sets in sequence.

[0045] In some embodiments, the determining the first parameter comprises:

[0046] Receiving the first grouping number parameter sent by the network device; or

[0047] Receiving the PO set size parameter sent by the network device;

[0048] Determining the first grouping number parameter based on the number of POs contained in the PF to which the PO listened by the UE belongs and the PO set size parameter.

[0049] In some embodiments, the determining the first parameter comprises:

[0050] Receiving the PO set size parameter sent by the network device; or

[0051] Receiving the first grouping number parameter sent by the network device;

[0052] Determining the PO set size parameter based on the number of POs contained in the PF to which the PO listened by the UE belongs and the first grouping number parameter.

[0053] In some embodiments, the determining the target RO set based on the target PO set and the first association relationship comprises:

[0054] Determining the number of the target RO set corresponding to the number of the target PO set based on the first association relationship;

[0055] Determining the target RO set according to the number of the target RO set.

[0056] In some embodiments, the method further comprises:

[0057] Receiving the second parameter sent by the network device;

[0058] grouping the ROs between the two adjacent PFs based on the second parameter to obtain N RO sets;

[0059] The second parameter comprises at least one of:

[0060] a second grouping number parameter; the second grouping number parameter is the number of RO sets;

[0061] a minimum RO grouping granularity parameter;

[0062] an RO group size parameter; the RO group size parameter is used to indicate the length of an RO group.

[0063] In some embodiments, the grouping the ROs between the two adjacent PFs based on the second parameter to obtain N RO sets comprises:

[0064] mapping the ROs between the two adjacent PFs to the second grouping number parameter of RO sets based on the second grouping number parameter and through one or more rounds of grouping, taking one RO group as one mapping unit; the length of the one RO group is the minimum RO grouping granularity parameter multiplied by the RO group length parameter.

[0065] In some embodiments, in the case that the number of ROs between the two adjacent PFs is an integer multiple of the minimum RO grouping granularity parameter, the method further comprises:

[0066] allocating the last RO that cannot form an RO group to a nearby RO set; the nearby RO set refers to the RO set to which the last RO group is mapped.

[0067] In some embodiments, in the case that the number of ROs between the two adjacent PFs is not an integer multiple of the minimum RO grouping granularity parameter, the method further comprises:

[0068] discarding the last RO that does not meet the minimum RO grouping granularity parameter.

[0069] In some embodiments, the method further comprises:

[0070] receiving RO switching indication information sent by a network device;

[0071] performing RO switching according to the RO switching indication information, and grouping the ROs after switching is completed.

[0072] In some embodiments, the method further comprises:

[0073] receiving RO grouping indication information sent by a network device.

[0074] In some embodiments, the grouping the ROs after switching is completed comprises:

[0075] grouping the ROs after the switching completion based on the RO grouping indication information.

[0076] In some embodiments, the grouping the ROs after the switching completion comprises:

[0077] re-grouping the ROs between two adjacent PFs based on the second parameter.

[0078] In a second aspect, the embodiments of the present disclosure provide a method for determining a random access occasion set, applied to a network device, comprising:

[0079] sending a first grouping number parameter and a second grouping number parameter to the UE; the first grouping number parameter is the number of PO sets; the second grouping number parameter is the number of RO sets; the first grouping number parameter of PO sets and the second grouping number parameter of RO sets have a first association relationship.

[0080] In some embodiments, the method further comprises:

[0081] sending a PO set size parameter to the UE; the PO set size parameter is the number of POs in each set mapped in each round of grouping, and each round of grouping comprises one or more mappings.

[0082] In some embodiments, the method further comprises:

[0083] sending an RO group size parameter and a minimum RO grouping granularity parameter to the UE; the RO group size parameter is used to indicate the length of an RO group, and the length of the RO group is the RO group length parameter multiplied by the minimum RO grouping granularity parameter.

[0084] In some embodiments, the method further comprises:

[0085] sending RO switching indication information to the UE.

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

[0087] sending RO grouping indication information to the UE; the RO grouping indication information is used to indicate the grouping manner of the ROs after the switching completion.

[0088] In some embodiments, the method further comprises:

[0089] sending a mapping relationship shift parameter to the UE; the mapping relationship shift parameter is used to indicate the first association relationship.

[0090] In a third aspect, the embodiments of the present disclosure provide a terminal, comprising a memory, a transceiver, and a processor.

[0091] a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

[0092] determining a target set of paging occasions (POs); the target set of POs is one of M sets of POs;

[0093] determining a target set of random access occasions (ROs) based on the target set of POs and a first association relationship; the target set of ROs is one of N sets of ROs, and the M sets of POs and the N sets of ROs have the first association relationship; M and N are both positive integers.

[0094] In some embodiments, an RO included in one set of ROs includes at least one of the following:

[0095] an RO corresponding to J times of mapping of synchronization signal blocks (SSBs) to ROs; J is a positive integer;

[0096] an RO corresponding to K physical random access channel (PRACH) association periods; K is a positive integer;

[0097] an RO corresponding to L PRACH association pattern periods; L is a positive integer;

[0098] an RO corresponding to S PRACH configuration periods; S is a positive integer;

[0099] an RO corresponding to a first time duration; the first time duration is predefined or configured by a network.

[0100] In some embodiments, the first association relationship includes at least one of the following:

[0101] an i-th set of POs in the M sets of POs is associated with a j-th set of ROs in the N sets of ROs; i is a positive integer and the value range of i is 1 to M; j is a positive integer and the value range of j is 1 to N;

[0102] an i-th set of POs in the M sets of POs is associated with an i+k-th set of ROs in the N sets of ROs; k is a mapping relationship shift parameter, and the mapping relationship shift parameter is configured by a network device;

[0103] a plurality of sets of POs in the M sets of POs are associated with a j-th set of ROs in the N sets of ROs;

[0104] an i-th set of POs in the M sets of POs is associated with a plurality of sets of ROs in the N sets of ROs.

[0105] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0106] determining a first parameter; the first parameter comprises at least one of:

[0107] a first group number parameter; the first group number parameter is a number of PO sets;

[0108] a PO set size parameter; the PO set size parameter is a number of POs in each set to which each mapping in each round of grouping is mapped, each round of grouping comprising one or more mappings;

[0109] a PO number parameter; the PO number parameter is a logical sequence number of a PO in a paging radio frame (PF).

[0110] In some embodiments, the determining a target paging occasion (PO) set comprises:

[0111] determining a number of the target PO set based on the first parameter;

[0112] determining the target PO set from the M PO sets according to the number of the target PO set.

[0113] In some embodiments, the determining a number of the target PO set based on the first parameter comprises:

[0114] taking an integer division of the PO number parameter of the PO listened to by the UE and the first group number parameter to obtain the number of the target PO set; or

[0115] taking a modulo of the PO number parameter of the PO listened to by the UE and the first group number parameter to obtain the number of the target PO set; or

[0116] taking a difference between the PO number parameter of the PO listened to by the UE and a first PO number as the number of the target PO set; the first PO number is a number of POs of a first type contained in a PF to which the PO listened to by the UE belongs.

[0117] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0118] grouping POs in one PF based on the first parameter to obtain M PO sets.

[0119] In some embodiments, when a number of the POs in the PF is an integer multiple of the first group number parameter, the grouping POs in one PF based on the first parameter to obtain M PO sets comprises:

[0120] The POs in the PF are equally divided based on the first grouping number parameter to obtain the first grouping number parameter sets of POs.

[0121] In some embodiments, in the case that the number of POs in the PF is not an integer multiple of the first grouping number parameter, the grouping of the POs in one PF based on the first parameter to obtain M sets of POs comprises:

[0122] The POs in the PF are grouped based on the first grouping number parameter to obtain the first grouping number parameter initial sets; the number of POs in each initial set is equal to the value obtained by rounding down the quotient of the number of POs in the PF and the first grouping number parameter;

[0123] The last POs are allocated to the first or last initial set in the first grouping number parameter initial sets to obtain the first grouping number parameter sets of POs; the last POs refer to the POs remaining after the POs in the PF are grouped into the first grouping number parameter initial sets.

[0124] In some embodiments, the grouping of the POs in one PF based on the first parameter to obtain M sets of POs comprises:

[0125] The POs in the PF are mapped to the first grouping number parameter sets of POs based on the first grouping number parameter and through one or more rounds of grouping with the PO set size parameter POs as a mapping unit.

[0126] In some embodiments, the mapping of the POs in the PF to the first grouping number parameter sets of POs comprises:

[0127] The POs in the PF are arranged in ascending order according to the number parameter of the POs;

[0128] The POs in the PF are sequentially mapped to the first grouping number parameter sets of POs.

[0129] In some embodiments, the determination of the first parameter comprises:

[0130] receiving the first grouping number parameter sent by the network device; or

[0131] receiving the PO set size parameter sent by the network device;

[0132] determining the first grouping number parameter based on the number of POs contained in the PF to which the PO listened by the UE and the PO set size parameter.

[0133] In some embodiments, the determination of the first parameter comprises:

[0134] receiving a PO set size parameter sent by the network device; or

[0135] receiving a first grouping number parameter sent by the network device;

[0136] determining a PO set size parameter based on the number of POs contained in a PF to which the UE listens and the first grouping number parameter.

[0137] In some embodiments, the determining the target RO set based on the target PO set and the first association relationship comprises:

[0138] determining the number of the target RO set corresponding to the number of the target PO set based on the first association relationship;

[0139] determining the target RO set according to the number of the target RO set.

[0140] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0141] receiving a second parameter sent by the network device;

[0142] grouping ROs between adjacent two PFs based on the second parameter to obtain N RO sets;

[0143] the second parameter comprises at least one of the following:

[0144] a second grouping number parameter; the second grouping number parameter is the number of RO sets;

[0145] a minimum RO grouping granularity parameter;

[0146] an RO group size parameter; the RO group size parameter is used to indicate the length of an RO group.

[0147] In some embodiments, the grouping the ROs between the adjacent two PFs based on the second parameter to obtain N RO sets comprises:

[0148] taking an RO group as a mapping unit, mapping the ROs between the adjacent two PFs to the second grouping number parameter of RO sets based on the second grouping number parameter and through one or more rounds of grouping; the length of the RO group is the minimum RO grouping granularity parameter multiplied by the RO group length parameter.

[0149] In some embodiments, in the case that the number of ROs between the adjacent two PFs is an integer multiple of the minimum RO grouping granularity parameter, the processor is further configured to read the computer program in the memory and perform the following operations:

[0150] assigning the tail ROs that cannot form a RO group to a neighboring RO set; the neighboring RO set refers to the RO set mapped by the last RO group.

[0151] In some embodiments, in a case that the number of ROs between the two adjacent PFs is not an integer multiple of the minimum RO grouping granularity parameter, the processor is further configured to read the computer program in the memory and perform the following operations:

[0152] discarding the tail ROs that do not meet the minimum RO grouping granularity parameter.

[0153] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0154] receiving RO switching indication information sent by a network device;

[0155] performing RO switching according to the RO switching indication information, and grouping the ROs after switching is completed.

[0156] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0157] receiving RO grouping indication information sent by a network device.

[0158] In some embodiments, the grouping the ROs after switching is completed comprises:

[0159] grouping the ROs after switching is completed based on the RO grouping indication information.

[0160] In some embodiments, the grouping the ROs after switching is completed comprises:

[0161] re-grouping the ROs between the two adjacent PFs based on the second parameter.

[0162] In a fourth aspect, the embodiments of the present disclosure provide a network device, comprising a memory, a transceiver, and a processor.

[0163] the memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0164] sending a first grouping number parameter and a second grouping number parameter to a UE; the first grouping number parameter is the number of PO sets; the second grouping number parameter is the number of RO sets; and the first grouping number parameter of PO sets and the second grouping number parameter of RO sets have a first association relationship.

[0165] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0166] sending a PO set size parameter to the UE; the PO set size parameter is a number of POs mapped to each set in each round of grouping, each round of grouping including one or more mappings.

[0167] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0168] sending a RO group size parameter and a minimum RO grouping granularity parameter to the UE; the RO group size parameter is used to indicate a length of a RO group, the length of the RO group being the RO group length parameter multiplied by the minimum RO grouping granularity parameter.

[0169] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0170] sending a RO switching indication to the UE.

[0171] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0172] sending a RO grouping indication to the UE; the RO grouping indication is used to indicate a manner of grouping ROs after RO switching is completed.

[0173] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0174] sending a mapping relationship shift parameter to the UE; the mapping relationship shift parameter is used to indicate the first association relationship.

[0175] In a fifth aspect, an embodiment of the present disclosure provides a determination apparatus of a random access occasion set, including:

[0176] a target PO set determination module configured to determine a target PO set; the target PO set is one of M PO sets;

[0177] a target RO set determination module configured to determine a target RO set based on the target PO set and a first association relationship; the target RO set is one of N RO sets, the M PO sets and the N RO sets having the first association relationship; M and N are both positive integers.

[0178] In a sixth aspect, an embodiment of the present disclosure provides a determination apparatus of a random access occasion set, including:

[0179] The first sending module is configured to send a first packet quantity parameter and a second packet quantity parameter to the UE; the first packet quantity parameter is the number of PO sets; the second packet quantity parameter is the number of RO sets; the first packet quantity parameter has a first association relationship with the second packet quantity parameter.

[0180] In a seventh aspect, the embodiments of the present disclosure further provide a non-transitory readable storage medium, which stores a computer program, and the computer program is used to make a processor execute the method for determining a random access occasion set as described in the first aspect or the second aspect.

[0181] In an eighth aspect, the embodiments of the present disclosure further provide a processor readable storage medium, which stores a computer program, and the computer program is used to make a processor execute the method for determining a random access occasion set as described in the first aspect or the second aspect.

[0182] In a ninth aspect, the embodiments of the present disclosure further provide a computer readable storage medium, which stores a computer program, and the computer program is used to make a computer execute the method for determining a random access occasion set as described in the first aspect or the second aspect.

[0183] In a tenth aspect, the embodiments of the present disclosure further provide a communication device, which stores a computer program, and the computer program is used to make the communication device execute the method for determining a random access occasion set as described in the first aspect or the second aspect.

[0184] In an eleventh aspect, the embodiments of the present disclosure further provide a chip product, which stores a computer program, and the computer program is used to make the chip product execute the method for determining a random access occasion set as described in the first aspect or the second aspect.

[0185] The method, device and storage medium for determining a random access occasion set provided by the embodiments of the present disclosure are used for a UE to first determine a target PO set, and then determine a target RO set based on the target PO set and a first association relationship, wherein the target PO set is one of M PO sets, the target RO set is one of N RO sets, and the M PO sets and the N RO sets have the first association relationship, and M and N are both positive integers. Through obtaining a plurality of PO sets and a plurality of RO sets, and based on the mapping relationship between the plurality of PO sets and the plurality of RO sets, the UE can quickly determine the target RO set corresponding to the PO listened by the UE, without competing for the RO immediately after the PF, but determining the target RO from the target RO set, and successfully starting the initial random access process, thereby reducing the waste of power consumption. BRIEF DESCRIPTION OF DRAWINGS

[0186] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art description. Obviously, the drawings in the following description are some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these drawings without creative work.

[0187] FIG. 1 is a flow diagram of a method for determining a set of random access occasions according to an embodiment of the present disclosure;

[0188] FIG. 2 is a scenario diagram of PO grouping according to an embodiment of the present disclosure;

[0189] FIG. 3 is a scenario diagram of PO grouping according to an embodiment of the present disclosure;

[0190] FIG. 4 is a scenario diagram of RO grouping according to an embodiment of the present disclosure;

[0191] FIG. 5 is a scenario diagram of legacy RO not participating in RO grouping according to an embodiment of the present disclosure;

[0192] FIG. 6 is a scenario diagram of RO adaptive adjustment according to an embodiment of the present disclosure;

[0193] FIG. 7 is a flow diagram of a method for determining a set of random access occasions according to an embodiment of the present disclosure;

[0194] FIG. 8 is a structural diagram of a terminal according to an embodiment of the present disclosure;

[0195] FIG. 9 is a structural diagram of a network device according to an embodiment of the present disclosure;

[0196] FIG. 10 is a structural diagram of a device for determining a set of random access occasions according to an embodiment of the present disclosure;

[0197] FIG. 11 is a structural diagram of a device for determining a set of random access occasions according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0198] The purpose of paging is to make the UE in IDLE (idle state) and INACTIVE (inactive state) reconnect to the network to start a new data service, and the network initiates the paging process by sending a paging message and / or a paging indication at the paging occasion (PO) of the UE.

[0199] For power saving, the paging reception of UE follows the principle of discontinuous reception, and each UE acquires its own paging cycle in at most three ways, and the final paging cycle is determined according to the principle of the shortest cycle. In each paging cycle, the UE will only listen to one PO. The PFs are uniformly distributed in a paging cycle.

[0200] The determination of the PO of the UE includes the following two steps: first, the position of the PF, that is, the corresponding system frame number (SFN), is determined, and the calculation formula of the position of the PF is (SFN+PF_offset)mod T=(T÷N)×(UE_ID mod N), wherein PF_offset is the position offset of the PF, T is the discontinuous reception (DRX) cycle (that is, the paging cycle) of the UE, N is the total number of PFs in a paging cycle, and UE_ID is the identifier (ID) of the UE. Then, the specific position of the PO, that is, the logical sequence number i_s of the PO in the PF, is determined, and the calculation formula is i_s=floor((UE_ID) / N)mod Ns, wherein Ns represents the number of POs contained in one PF, and floor() is a floor function.

[0201] A PF can contain multiple POs, and the first PO belonging to a PF is always set from the starting position of the PF, and all POs must strictly avoid the uplink slot position.

[0202] The maximum configuration of Ns allowed by the current UE is 4, that is, there are at most 4 POs in one PF.

[0203] After the UE calculates the position of the PO, the paging downlink control information (Paging DCI) sent by the base station is received at the corresponding position, and it is determined whether the UE needs to initiate access, and the timing (that is, the RO) of initiating access is determined by the UE, and one possible way is that the UE initiates the access process at the RO adjacent to the PO. The default configuration parameters of the PO and the RO are issued by the base station through the system information block (System Information Block-1, SIB1).

[0204] One potential direction of Paging enhancement is to increase T (or decrease N) and increase Ns at the same time, so as to ensure that the total number of POs per unit time does not change, and the number of base station wake-up times is reduced (that is, the PF is sparse), but it will be limited by the value of Ns.

[0205] A potential evolution direction of the current NES is to concentrate more POs / PFs in a unit of time. After receiving the Paging DCI, the UE can immediately perform the initial random access (i.e., initial access) process, and the dense PO distribution in a PF causes a large number of UEs to have a large demand for ROs in a short time, which leads to a large number of UEs competing for ROs after the adjacent PF, so that some UEs cannot always successfully access, causing an impact on the time delay and waste of power consumption.

[0206] Based on the above technical problems, the embodiment of the present disclosure proposes a method for determining a random access occasion set. The UE first determines a target PO set, and then determines a target RO set based on the target PO set and a first association relationship. The target PO set is one of M PO sets, the target RO set is one of N RO sets, and the M PO sets and the N RO sets have the first association relationship. M and N are both positive integers. By obtaining a plurality of PO sets and a plurality of RO sets, and based on the mapping relationship between the plurality of PO sets and the plurality of RO sets, the UE can quickly determine the target RO set corresponding to the PO listened by the UE, without competing for the RO after the adjacent PF, but determining the target RO from the target RO set to smoothly start the initial random access process, thereby reducing the waste of power consumption.

[0207] To make the objects, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present disclosure.

[0208] FIG. 1 is a flowchart of a method for determining a random access occasion set according to an embodiment of the present disclosure. As shown in FIG. 1, the embodiment of the present disclosure provides a method for determining a random access occasion set, and the execution subject of the method can be a terminal, such as a mobile phone or the like. The method comprises the following steps.

[0209] Step 101: determining a target paging occasion (PO) set; the target PO set is one of M PO sets.

[0210] Specifically, the UE first determines the target PO set from the M PO sets, and M is a positive integer.

[0211] Each PO set contains one or more POs, and the target PO set refers to the PO set to which the PO listened by the UE belongs.

[0212] For example, the UE groups the POs in one PF into M PO sets, and the UE determines the PO set to which the monitored PO belongs, which is the target PO set.

[0213] For another example, the UE groups the POs in one paging cycle into M PO sets, and the UE determines the PO set to which the monitored PO belongs, which can be specifically that an index is set for each PO in the PO set, the index is composed of the SFN of the PF to which the PO belongs and the logical sequence number of the PO in the PF, the UE determines which PO is monitored, i.e., determines the index of the monitored PO, and thus determines the PO set to which the PO belongs, which is the target PO set.

[0214] Step 102, determining a target random access occasion (RO) set based on the target PO set and a first association relationship; the target RO set is one of N RO sets, and the M PO sets and the N RO sets have the first association relationship.

[0215] Specifically, after the UE determines the target PO set, the UE determines the target RO set corresponding to the target PO set from the N RO sets based on the first association relationship, where N is a positive integer.

[0216] The N RO sets are obtained by grouping the ROs in a time period, for example, the ROs between the nth PF and the (n+1)th PF are grouped into N RO sets.

[0217] The number M of the PO sets and the number N of the RO sets can be equal or not equal. The M PO sets and the N RO sets have the first association relationship.

[0218] For example, the first association relationship includes a one-to-one correspondence relationship between the PO sets and the RO sets, i.e., a certain PO set in the M PO sets is associated with only a certain RO set in the N RO sets.

[0219] For another example, the first association relationship includes a one-to-more correspondence relationship between the PO sets and the RO sets, i.e., multiple PO sets in the M PO sets are associated with a certain RO set in the N RO sets.

[0220] For another example, the first association relationship includes a one-to-more correspondence relationship between the PO sets and the RO sets, i.e., a certain PO set in the M PO sets is associated with multiple RO sets in the N RO sets. If the target PO set is associated with multiple RO sets in the N RO sets, one RO set is selected (randomly or according to a predetermined rule) from the multiple RO sets as the target RO set.

[0221] After the target RO set is determined, the UE can initiate initial random access from one RO in the target RO set.

[0222] The method for determining a set of random access occasions provided by the embodiments of the present disclosure comprises: a UE first determines a target PO set, and then determines a target RO set based on the target PO set and a first association relationship, wherein the target PO set is one of M PO sets, the target RO set is one of N RO sets, the M PO sets and the N RO sets have the first association relationship, and M and N are positive integers. By obtaining a plurality of PO sets and a plurality of RO sets, and based on the mapping relationship between the plurality of PO sets and the plurality of RO sets, the UE can quickly determine the target RO set corresponding to the PO listened to by the UE, without competing for the RO after the PF, but determining the target RO from the target RO set, successfully starting the initial random access process, reducing the latency of initial access, and reducing power waste.

[0223] In some embodiments, the ROs included in one RO set comprise at least one of the following:

[0224] ROs corresponding to completion of J times of mapping of synchronization signal blocks (SSBs) to ROs, J being a positive integer;

[0225] ROs corresponding to K physical random access channel (PRACH) association periods, K being a positive integer;

[0226] ROs corresponding to L PRACH association pattern periods, L being a positive integer;

[0227] ROs corresponding to S PRACH configuration periods, S being a positive integer;

[0228] ROs corresponding to a first time length, the first time length being predefined or configured by a network.

[0229] Specifically, the ROs included in one RO set can comprise ROs corresponding to completion of J times of mapping of synchronization signal blocks (SSBs) to ROs, and / or ROs corresponding to K physical random access channel (PRACH) association periods, and / or ROs corresponding to L PRACH association pattern periods, and / or ROs corresponding to S PRACH configuration periods, and / or ROs corresponding to a first time length, and the like, wherein J, K, L, and S are positive integers, and the first time length is predefined or configured by a network.

[0230] In the embodiments of the present disclosure, the number of ROs included in one RO set is at least the number of ROs required for completion of one time of mapping of SSBs to ROs.

[0231] The method for determining a random access occasion set provided by the embodiments of the present disclosure includes one or more SSB-to-RO mapping corresponding ROs, one or more PRACH association period corresponding ROs, one or more PRACH association pattern period corresponding ROs, one or more PRACH configuration period corresponding ROs, and a first time length corresponding ROs, so that the UE can successfully perform an initial random access procedure in the ROs in the determined target RO set, thereby improving the success rate of the initial random access.

[0232] In some embodiments, the first association relationship includes at least one of the following:

[0233] The i-th PO set in the M PO sets is associated with the j-th RO set in the N RO sets; i ranges from 1 to M; j ranges from 1 to N; i and j are positive integers;

[0234] The i-th PO set in the M PO sets is associated with the i+k-th RO set in the N RO sets; k is a mapping relationship shift parameter, and the mapping relationship shift parameter is configured by a network device;

[0235] A plurality of PO sets in the M PO sets are associated with the j-th RO set in the N RO sets;

[0236] The i-th PO set in the M PO sets is associated with a plurality of RO sets in the N RO sets.

[0237] Specifically, the M PO sets and the N RO sets have a first association relationship.

[0238] The first association relationship can include a one-to-one correspondence between the PO sets and the RO sets, that is, the i-th PO set in the M PO sets is associated with the j-th RO set in the N RO sets (i ranges from 1 to M, j ranges from 1 to N, i and j are positive integers, and in this embodiment, the number of sets is represented). That is, a PO set with a certain number in the M PO sets is associated with an RO set with a certain number in the N RO sets. This first association relationship can be predefined or configured by a network device, such as in a SIB1 parameter set.

[0239] i can be equal to j, that is, the i-th PO set in the M PO sets is associated with the i-th RO set in the N RO sets, that is, a PO set with a certain number in the M PO sets is associated with an RO set with an equal number in the N RO sets.

[0240] For example, the first PO set in the M PO sets is associated with the first RO set in the N RO sets, the fourth PO set in the M PO sets is associated with the fourth RO set in the N RO sets, and so on, and the ith PO set in the M PO sets is associated with the ith RO set in the N RO sets.

[0241] i and j can not be equal, that is, a PO set in the M PO sets is associated with a RO set in the N RO sets with different numbers.

[0242] For example, the first PO set in the M PO sets is associated with the second RO set in the N RO sets, the second PO set in the M PO sets is associated with the fourth RO set in the N RO sets, and so on.

[0243] For another example, the ith PO set in the M PO sets is associated with the ith+k RO set in the N RO sets, and k is a mapping relationship shift parameter. If k is a positive integer, when i+k is greater than N, the first RO set is re-corresponded, that is, the ith+k-N RO set is corresponded at this time (for example, k=2, N=4, the second PO set corresponds to the fourth RO set, the third PO set corresponds to the first RO set, the fourth PO set corresponds to the second RO set, and so on). If k is a negative integer, when i+k is less than 0, the N-1th RO set is re-corresponded, that is, the N-i RO set is corresponded at this time (for example, k=-2, N=4, the first PO set corresponds to the third RO set, the second PO set corresponds to the fourth RO set, the third PO set corresponds to the first RO set, and so on).

[0244] The mapping relationship shift parameter k is configured by the network device, and the network device can add a parameter k in the PCCH-Config IE signaling (the signaling is used to configure the PO parameter) or the RACH-ConfigGeneric IE signaling (the signaling is used to configure the RO parameter) and send it to the UE.

[0245] Specifically, the first association relationship can include the corresponding relationship between a plurality of PO sets and one RO set, that is, a plurality of PO sets in the M PO sets are associated with the jth RO set in the N RO sets. The first association relationship can be predefined or configured by the network device, such as in the SIB1 parameter set.

[0246] For example, the first PO set, the second PO set, and the third PO set in the M PO sets are all associated with the first RO set in the N RO sets.

[0247] The first association relationship can also include a correspondence relationship between one PO set and multiple RO sets, that is, the ith PO set in the M PO sets is associated with multiple RO sets in the N RO sets. The first association relationship can be predefined or configured by the network device, such as in the SIB1 parameter set.

[0248] For example, the first PO set in the M PO sets is associated with the first RO set in the N RO sets, and is also associated with the second RO set in the N RO sets.

[0249] In the embodiments of the present disclosure, the first association relationship can include only one of the above association relationships, or a mixture of several association relationships, for example, a part of the PO sets are one-to-one corresponding to the same number of RO sets, and another part of the PO sets are each corresponding to one RO set (one-to-many correspondence).

[0250] In the embodiments of the present disclosure, the first association relationship can be predefined, and the first association relationship can be adjusted or updated by information sent by the network device.

[0251] For example, the predefined first association relationship is one-to-one correspondence between the PO set and the RO set, the UE understands the mapping relationship according to the predefined manner, the first PO set corresponds to the first RO set, and so on. When receiving the mapping relationship shift parameter k sent by the network device (for example, k = 2), the mapping relationship understood by the UE changes to the first PO set corresponding to the third RO set, the second set corresponding to the fourth RO set, the third PO set corresponding to the first RO set, and the fourth PO set corresponding to the second RO set.

[0252] The method for determining a random access occasion set provided by the embodiments of the present disclosure can quickly lock the target RO set associated with the target PO set after the UE determines the target PO set by presetting the first association relationship or configuring the first association relationship by the network device, so that the UE can initiate initial access in a certain RO in the target RO set, thereby ensuring that the UE can successfully access and reducing the access delay and power consumption.

[0253] In some embodiments, the method further includes:

[0254] determining a first parameter; the first parameter includes at least one of:

[0255] a first group number parameter; the first group number parameter is the number of PO sets;

[0256] a PO set size parameter; the PO set size parameter is the number of POs mapped to each set in each round of grouping, and each round of grouping includes one or more mappings;

[0257] a number parameter of the POs; the number parameter of the POs is a logical sequence number of the POs in a paging radio frame PF.

[0258] Specifically, before determining the target PO set, a first parameter needs to be determined, which can be used for PO grouping and determining the number of the target PO set. The first parameter includes a first grouping number parameter, a PO set size parameter, and / or a number parameter of the POs, etc.

[0259] The first grouping number parameter is the number of PO sets, i.e., a parameter M in M PO sets.

[0260] The PO set size parameter is the number of POs mapped to each set in each round of grouping, and each round of grouping includes one or more mappings.

[0261] For example, the PO set size parameter is b, in the first round of PO grouping, the first b POs in the POs to be grouped are mapped to the first PO set, the b+1 th PO to 2×b th PO in the POs to be grouped are mapped to the second PO set, and so on. Each time b POs are mapped, since there are M sets, one round of grouping includes M mappings. If there are still POs to be grouped after one round of grouping, a new round of grouping is started until all POs are mapped to the PO sets.

[0262] The number parameter of the POs is a logical sequence number of the POs in the PF to which the POs belong.

[0263] The method for determining a random access occasion set provided by the embodiments of the present disclosure can enable the UE to determine one or more first parameters for PO grouping and determining a target PO set, and can be flexibly applied to various demand scenarios.

[0264] In some embodiments, the determining the first parameter includes:

[0265] receiving a first grouping number parameter sent by the network device; or

[0266] receiving a PO set size parameter sent by the network device;

[0267] determining the first grouping number parameter based on the number of POs included in the PF to which the PO listened by the UE belongs and the PO set size parameter.

[0268] Specifically, if the first parameter to be determined is the first grouping number parameter, the first grouping number parameter can be determined in the following two ways.

[0269] One way of determining the first grouping number parameter is that the network device sends the first grouping number parameter to the UE, and the UE receives the first grouping number parameter.

[0270] Another determination manner of the first group quantity parameter is that the network device does not send the first group quantity parameter but sends a PO set size parameter (the network device does not simultaneously configure the first group quantity parameter and the PO set size parameter), and the UE receives the PO set size parameter. Then, the first group quantity parameter is determined based on the quantity of POs contained in the PF and the PO set size parameter, specifically, the quotient obtained by dividing the quantity Ns of POs contained in the PF by the PO set size parameter is the first group quantity parameter.

[0271] In some embodiments, the determining the first parameter comprises:

[0272] receiving the PO set size parameter sent by the network device; or

[0273] receiving the first group quantity parameter sent by the network device.

[0274] determining the PO set size parameter based on the quantity of POs contained in the PF to which the PO listened by the UE and the first group quantity parameter.

[0275] Specifically, if the first parameter to be determined is the PO set size parameter, the PO set size parameter can be determined in the following two manners.

[0276] One determination manner of the PO set size parameter is that the network device sends the PO set size parameter to the UE, and the UE receives the PO set size parameter.

[0277] Another determination manner of the PO set size parameter is that the network device does not send the PO set size parameter but sends the first group quantity parameter, and the UE receives the first group quantity parameter. Then, the first group quantity parameter is determined based on the quantity of POs contained in the PF and the first group quantity parameter, specifically, the quotient obtained by dividing the quantity Ns of POs contained in the PF by the first group quantity parameter is the PO set size parameter.

[0278] The determination method of the random access occasion set provided by the embodiments of the present disclosure can obtain the first parameter through network device configuration or obtain the first parameter based on the information configured by the network device, and can be flexibly applied to various target PO set determination manners.

[0279] In some embodiments, the determining the target paging occasion PO set comprises:

[0280] determining the number of the target PO set based on the first parameter;

[0281] determining the target PO set from the M PO sets according to the number of the target PO set.

[0282] Specifically, after determining the first parameter, a number of the target PO set is determined based on the first parameter, so as to determine the target PO set from the M PO sets according to the number of the target PO set.

[0283] For example, the number of the target PO set is determined based on the first group number parameter, and the target PO set is determined from the M PO sets according to the number of the target PO set.

[0284] For another example, the number of the target PO set is determined based on the first group number parameter, the PO set size parameter and the PO number parameter, and the target PO set is determined from the M PO sets according to the number of the target PO set.

[0285] The method for determining a random access occasion set provided by the embodiments of the present disclosure determines the number of the target PO set based on the first parameter, simply and directly determines the target PO set, improves the determination efficiency of the target PO set, and is beneficial to reducing the initial access delay of the UE.

[0286] In some embodiments, the number of the target PO set is determined based on the first parameter, including:

[0287] The quotient of the number parameter of the PO monitored by the UE and the first group number parameter is rounded down to obtain the number of the target PO set; or

[0288] The target PO set is determined from the M PO sets according to the number of the target PO set.

[0289] The difference between the number parameter of the PO monitored by the UE and the first PO number is taken as the number of the target PO set; the first PO number is the number of the first type of PO contained in the PF to which the PO monitored by the UE belongs.

[0290] Specifically, the number of the target PO set can be determined in various ways.

[0291] When the determined first parameter includes the number parameter i_s of the PO and the first group number parameter M, the quotient of the number parameter of the PO monitored by the UE and the first group number parameter can be rounded down to obtain the number of the target PO set, that is, the number of the target PO set Set_j = floor(i_s / M). The PO monitored by the UE can be a legacy PO (a random access occasion in the existing network) or an additional PO (a newly added random access occasion).

[0292] For example, if the first parameters are the PO number parameter (assuming i_s = 9) and the first group number parameter M (assuming M = 4) that the UE monitors, the target PO set number Set_j is 2, i.e., the target PO set is the second PO set in the M PO sets.

[0293] When the determined first parameters include the PO number parameter i_s and the first group number parameter M, the PO number parameter i_s that the UE monitors and the first group number parameter M can also be taken modulo to obtain the target PO set number, i.e., the target PO set number Set_j = i_s mod M. The PO that the UE monitors can be a legacy PO or an additional PO.

[0294] For example, if the first parameters are the PO number parameter (assuming i_s = 9) and the first group number parameter M (assuming M = 4) that the UE monitors, the target PO set number Set_j is 1, i.e., the target PO set is the first PO set in the M PO sets.

[0295] If the UE can only monitor additional POs, when the determined first parameters include the PO number parameter, the difference between the PO number parameter that the UE monitors and the first PO number is used as the target PO set number, and the first PO number is the number of POs of the first type (legacy PO) included in the PF to which the PO that the UE monitors belongs.

[0296] For example, the UE is an additional UE (new terminal), and if the PO that the UE monitors can only be an additional PO, the first parameter is the additional PO number parameter i_s that the UE monitors, and the target PO set number is equal to the difference between the PO number parameter that the UE monitors and the first PO number (legacy Ns), and the first PO number is the number of legacy POs included in the PF, i.e., the target PO set number Set_j = i_s - legacy Ns. Although the UE cannot monitor legacy POs in this scenario, it can determine the configuration / distribution of the two types of POs according to network configuration, including the value of the first PO number.

[0297] The legacy PO refers to a PO that can be monitored by a legacy UE (existing network terminal), and the additional PO is a PO that cannot be used by a legacy UE, while the additional UE can monitor all POs or only monitor additional POs. The legacy UE here refers to a UE deployed in the existing network, and the additional UE refers to a UE to be put into use in the future.

[0298] In the embodiments of the present disclosure, for the additional UE that can only monitor the additional PO, the PO corresponding to the legacy UE cannot be applied, that is, the additional UE is completely independent of the resource of the legacy UE in the monitoring process. At this time, the i_s calculated by the additional UE through the additional Ns (the additional Ns is the number of the additional PO included in the PF) is the logical serial number of the additional PO, which may coincide with the i_s corresponding to the legacy UE, thereby causing the base station to understand incorrectly. In view of the above problem, the following scheme is designed:

[0299] After these additional UEs that can only monitor the additional PO multiplex the scheme of determining the PO set through i_s, the number of the PO set in which the UE is located (the number of the target PO set) is calculated, that is, Set_j = i_s mod M (M is the number of the PO set). The UE will change i_s to i_s + Ns (Ns is a parameter configured by the base station in SIB1). When determining the number of the target PO set, i_s is changed and the first PO number (legacy Ns) is obtained.

[0300] The method for determining the random access occasion set provided by the embodiments of the present disclosure determines the number of the target PO set based on the first grouping number parameter or determines the number of the target PO set based on the first grouping number parameter and the number parameter of the PO, which is simple to operate and can cope with various scenarios, including the case that the UE only monitors the first type of PO and the case that the UE monitors two types of PO, thereby improving the determination efficiency of the target PO set and being beneficial to reducing the initial access delay of the UE.

[0301] In some embodiments, the method further comprises:

[0302] Grouping the POs in one PF based on the first parameter to obtain M PO sets.

[0303] Specifically, the first parameter is also used for PO grouping. The UE can group the POs in one PF based on the first parameter to obtain M PO sets.

[0304] For example, the POs in one PF are grouped based on the first grouping number parameter, that is, the POs in one PF are grouped into the first grouping number parameter PO sets.

[0305] For another example, the POs in one PF are grouped based on the first grouping number parameter, the PO set size parameter and the number parameter of the PO to obtain the first grouping number parameter PO sets.

[0306] The method for determining a random access occasion set provided by the embodiments of the present disclosure groups POs based on a first parameter, obtains a plurality of PO sets, and can configure a UE with a larger Ns (the number of POs in one PF), so that POs are more concentrated, the base station sleeps for a longer time, and the energy saving requirement is met.

[0307] In some embodiments, in a case where the number of POs in the PF is an integer multiple of the first grouping number parameter, the grouping of the POs in one PF based on the first parameter to obtain M PO sets comprises:

[0308] The POs in the PF are equally divided based on the first grouping number parameter to obtain the first grouping number parameter PO sets.

[0309] Specifically, if the number of POs in one PF is an integer multiple of the first grouping number parameter, the POs in the PF are equally divided based on the first grouping number parameter to obtain the first grouping number parameter PO sets.

[0310] For example, FIG. 2 is one of the scene schematic diagrams of PO grouping provided by the embodiments of the present disclosure, as shown in FIG. 2, the first grouping number parameter is 4, and the number of POs in PF1 is 16, so the POs in the PF can be equally divided into 4 PO sets, and each PO set contains 4 POs.

[0311] In some embodiments, in a case where the number of POs in the PF is not an integer multiple of the first grouping number parameter, the grouping of the POs in one PF based on the first parameter to obtain M PO sets comprises:

[0312] The POs in the PF are grouped based on the first grouping number parameter to obtain the first grouping number parameter initial sets; the number of POs in each initial set is equal to the value obtained by rounding down the quotient of the number of POs in the PF and the first grouping number parameter.

[0313] The last PO is assigned to the first initial set or the last initial set in the first grouping number parameter initial sets to obtain the first grouping number parameter PO sets; the last PO refers to the PO remaining after the POs in the PF are grouped into the first grouping number parameter initial sets.

[0314] Specifically, if the number of POs in a PF is not an integer multiple of the first number-of-groups parameter, i.e., the number of POs in the PF cannot be evenly divided into the first number-of-groups parameter of groups, a portion of the POs in the PF are first grouped to obtain the first number-of-groups parameter of initial sets, and the number of POs in each initial set is equal to the value obtained by rounding down the quotient of the number of POs in the PF and the first number-of-groups parameter; then the remaining POs, or tail POs, are distributed to the first initial set or the last initial set in the first number-of-groups parameter of initial sets to obtain the first number-of-groups parameter of PO sets. The tail POs refer to the POs remaining after the POs in the PF are grouped into the first number-of-groups parameter of initial sets.

[0315] For example, the first number-of-groups parameter is M, and the number of POs in a PF is 4M+1, then the POs that can be evenly divided, i.e., 4M POs, are evenly divided to obtain M initial sets, and each initial set contains 4 POs; then the remaining 1 PO is distributed to the first initial set or the Mth initial set to obtain M PO sets.

[0316] In the embodiments of the present disclosure, the network device can decide whether to independently group legacy POs. For example, the first number-of-groups parameter is equal to Ns / 2 (Ns is the number of POs in a PF), then the first PO set and the second PO set only contain legacy POs, and the other sets correspond to additional POs. If the first number-of-groups parameter is equal to Ns, then the first PO set only contains legacy POs, and the other sets correspond to additional POs. Similarly, the base station can configure the mixed grouping of legacy POs and additional POs. For example, the first number-of-groups parameter is equal to 8, and since the maximum value of Ns is 4, the first PO set includes 4 legacy POs and 4 additional POs at this time. It should be noted that the logical sequence numbers of the default legacy POs are always the smallest, for example, when Ns=4, the logical sequence numbers of the legacy POs are 0, 1, 2, and 3, respectively.

[0317] In some embodiments, the grouping of the POs in a PF based on the first parameter includes:

[0318] The POs in the PF are mapped to the first number-of-groups parameter of PO sets based on the first number-of-groups parameter and through one or more rounds of grouping, with the PO set size parameter POs as a mapping unit.

[0319] Specifically, when the determined first parameters include the PO set size parameter, the first grouping number parameter and the PO number parameter, the POs in the PF can be mapped into the first grouping number of PO sets by one or more rounds of grouping, with the PO set size parameter as a mapping unit.

[0320] For example, FIG. 3 is a second scene diagram of PO grouping provided by the embodiments of the present disclosure. As shown in FIG. 3, the PO set size parameter is 2, the first grouping number parameter is 4, and the number of POs in the PF is 16. The POs are mapped in a unit of two POs, i.e., the first and second POs in the PF are mapped into the first PO set, the third and fourth POs are mapped into the second PO set, the seventh and eighth POs are mapped into the fourth PO set, and the first round of grouping is completed. Then, the second round of grouping starts from the first PO set, and all the POs in the PF are grouped to obtain the final four PO sets.

[0321] In some embodiments, the mapping of the POs in the PF into the first grouping number of PO sets comprises:

[0322] sequentially arranging the POs in the PF in ascending order according to the PO number parameter;

[0323] sequentially mapping the POs in the PF into the first grouping number of PO sets.

[0324] Specifically, the POs in the PF are sequentially arranged in ascending order according to the PO number parameter, and then the POs in the PF are sequentially mapped into the first grouping number of PO sets by one or more rounds of grouping based on the first grouping number parameter.

[0325] For example, the PO set size parameter is 2, the first grouping number parameter is 4, and the number of POs in the PF is 10. The POs in the PF are sequentially arranged in ascending order according to the PO number parameter, and the POs with the number parameters i_s-0 to i_s-9 are obtained in sequence. The POs are mapped in a unit of two POs according to the sequence, i.e., the POs with the number parameters i_s-0 and i_s-1 are mapped into the first PO set, the POs with the number parameters i_s-2 and i_s-3 are mapped into the second PO set, the POs with the number parameters i_s-6 and i_s-7 are mapped into the fourth PO set, and the first round of grouping is completed. Then, the second round of grouping is performed, i.e., the POs with the number parameters i_s-8 and i_s-9 are mapped into the first PO set, and all the POs in the PF are grouped to obtain four sets.

[0326] In the embodiments of the present disclosure, the network device determines whether to independently group the legacy PO by adjusting the first grouping number parameter and the PO set size parameter, for example, when the number of POs in one PF is Ns=4, i.e., there are four POs in the PF, the legacy PO is independently grouped when the PO set size parameter is less than or equal to 4, otherwise, the POs are mixedly grouped.

[0327] The method for determining the random access occasion set provided by the embodiments of the present disclosure can group the POs in one PF in multiple ways, including grouping the POs in one PF based on the first grouping number parameter, the PO set size parameter, and / or the number parameter of the POs, and considering the allocation direction of the last POs that cannot be evenly divided, thereby achieving reasonable and effective grouping of the POs in one PF. The network device can determine whether to independently group the legacy PO by adjusting the first grouping number parameter and the PO set size parameter, thereby achieving the differentiation of the legacy PO and the additional PO, minimizing the impact on the legacy UE, and enhancing the flexibility of the grouping method based on the first parameter for PO grouping, thereby meeting different application requirements.

[0328] In some embodiments, before the PO grouping, in addition to the Ns corresponding to the legacy UE and the parameter (firstPDCCH-MonitoringOccasionOfPO) indicating the number and position of the legacy PO, the base station also configures an independent Ns (corresponding to the firstPDCCH-MonitoringOccasionOfPO-R19 parameter) for the additional UE, indicating the number of POs that the additional UE can select in one PF.

[0329] After the PO grouping, if the legacy PO and the additional PO do not exist in each PO set at the same time, it is considered that the sets in which the two types of POs exist are separated; the base station can remove the set in which the legacy PO exists when mapping (let Set_j=floor((i_s-Ns) / M, where Set_j is the number of the PO set, i_s is the number parameter of the PO, Ns is the number of POs contained in the corresponding PF, and M is the first grouping number parameter; the index of the first PO number (legacy Ns) POs is removed), thereby reducing the impact on the legacy UE.

[0330] After the PO grouping, if there is one or more PO sets that contain both the legacy PO and the additional PO, it is considered that the sets in which the two types of POs exist are mixed; at this time, the legacy PO and the additional PO cannot be divided.

[0331] The distinction between the legacy PO and the additional PO can potentially affect the mapping relationship, because the mapping relationship between the legacy PO and the legacy RO is always present and cannot be changed for the legacy UE, then for the additional UE that can receive all signaling issued by the base station for the legacy UE, if the additional UE is divided into the same PO set as the legacy UE, the additional UE can use more RO sets (legacy RO and the RO set mapped by the base station for the PO set). Accordingly, the legacy UE in the RO set used by these additional UEs will also be affected.

[0332] In some embodiments, the determining the target RO set based on the target PO set and the first association relationship comprises:

[0333] determining the number of the target RO set corresponding to the number of the target PO set based on the first association relationship;

[0334] determining the target RO set according to the number of the target RO set.

[0335] Specifically, after determining the target PO set, the number of the target RO set corresponding to the number of the target PO set is determined based on the first association relationship, and then the target RO set is determined according to the number of the target RO set.

[0336] For example, the number of the target PO set is 2, and based on the first association relationship (the i-th PO set in the M PO sets is associated with the i-th RO set in the N RO sets), the number of the target RO set is determined to be equal to the number of the target PO set, i.e. 2, and the target RO set is determined to be the second RO set in the N RO sets.

[0337] For another example, the number of the target PO set is 2, and based on the first association relationship (the i-th PO set in the M PO sets is associated with the j-th RO set in the N RO sets, i and j are not equal), the number of the target RO set corresponding to the number of the target PO set is determined to be 4, and the target RO set is the fourth RO set in the N RO sets.

[0338] For another example, the network device sends the mapping relationship shift parameter k (k=2), the UE receives the mapping relationship shift parameter, determines that the number of the target PO set is 2, and based on the first association relationship (the i th PO set in the M PO sets is associated with the i+k th RO set in the N RO sets), determines that the number of the target RO set corresponding to the number of the target PO set is 4, and the target RO set is the 4 th RO set in the N RO sets.

[0339] For another example, the number of the target PO set is 2, based on the first association relationship (the multiple PO sets containing the target PO set in the M PO sets are associated with the 4 th RO set in the N RO sets), it is determined that the number of the target RO set corresponding to the number of the target PO set is 4, and the target RO set is the 4 th RO set in the N RO sets.

[0340] For another example, the number of the target PO set is 2, based on the first association relationship (the 2 nd PO set containing the target PO set in the M PO sets is associated with the 3 rd and 4 th RO sets in the N RO sets), it is determined that the number of the target RO set corresponding to the number of the target PO set is 3 and 4, and the target RO set is the 3 rd or 4 th RO set in the N RO sets.

[0341] The method for determining the random access occasion set provided by the embodiments of the present disclosure can enable the UE to determine the target RO set corresponding to the target PO set based on the predefined first association relationship or the parameter configured by the network device to indicate the first association relationship, can meet the needs of different application scenarios, and can enable the UE to quickly lock the target RO set associated with the target PO set after determining the target PO set, so that the UE can initiate initial access in a certain RO in the target RO set, thereby ensuring that the UE can successfully access and reducing the access delay and power consumption.

[0342] In some embodiments, the method further comprises:

[0343] receiving a second parameter sent by the network device;

[0344] grouping the ROs between adjacent two PFs based on the second parameter to obtain N RO sets;

[0345] The second parameter comprises at least one of the following:

[0346] a second grouping number parameter; the second grouping number parameter is the number of RO sets;

[0347] a minimum RO grouping granularity parameter;

[0348] an RO group size parameter; the RO group size parameter is used to indicate the length of an RO group.

[0349] Specifically, the network device sends a second parameter to the UE, the second parameter is used for RO grouping, after the UE receives the second parameter, the UE groups the ROs between the adjacent two PFs based on the second parameter to obtain N RO sets. The second parameter includes a second grouping number parameter, a minimum RO grouping granularity parameter, and / or an RO group size parameter, etc.

[0350] The second grouping number parameter is the number of RO sets, i.e., the parameter N in the N RO sets. The second grouping number parameter can be the same as or different from the first grouping number parameter.

[0351] The minimum RO grouping granularity parameter is the smallest grouping unit for RO grouping, which can be carried by SIBx or DCI signaling.

[0352] In some embodiments, the minimum RO grouping granularity parameter is at least the number of ROs satisfying one round of SSB-RO mapping. The minimum RO grouping granularity parameter can also be the association period of SSB mapping to RO, or the PRACH configuration period, or other parameters.

[0353] The RO group size parameter is used to indicate the length of one RO group. For example, if the RO group size parameter is n, then the length of one RO group is n times the minimum RO grouping granularity parameter, and one RO group is a plurality of ROs mapped to one RO set each time.

[0354] The method for determining a random access occasion set provided by the embodiments of the present disclosure can configure different second parameters for RO grouping, which realizes reasonable and effective grouping of the ROs between the adjacent two PFs, improves the accuracy of target RO set determination, and enhances the flexibility of the grouping mode applied based on the second parameter for RO grouping, which can meet different application requirements.

[0355] In some embodiments, the grouping of the ROs between the adjacent two PFs based on the second parameter to obtain N RO sets comprises:

[0356] Taking one RO group as one mapping unit, the ROs between the adjacent two PFs are mapped to the second grouping number parameter RO sets through one or more rounds of grouping based on the second grouping number parameter; the length of the one RO group is the minimum RO grouping granularity parameter multiplied by the RO group length parameter.

[0357] Specifically, the network device sends a second packet quantity parameter, a minimum RO packet granularity parameter, and an RO group length parameter to the UE, the UE receives the second packet quantity parameter, the minimum RO packet granularity parameter, and the RO group length parameter sent by the network device, and then maps the ROs between the adjacent two PFs to the second packet quantity parameter of RO sets based on the second packet quantity parameter and through one or more rounds of grouping, with one RO group as one mapping unit. The length of one RO group is the minimum RO packet granularity parameter multiplied by the RO group length parameter.

[0358] For example, the network device sends a second packet quantity parameter N, a minimum RO packet granularity parameter a, and an RO group length parameter p to the UE, the UE receives N, a, and p, and knows that the length of one RO group is a x p, that is, one RO group contains a x p ROs, and maps the ROs between the adjacent two PFs to N RO sets through one or more rounds of grouping, with one RO group as one mapping unit.

[0359] For another example, FIG. 4 is a schematic diagram of a RO grouping scenario provided by an embodiment of the present disclosure. As shown in FIG. 4, the number of ROs between the adjacent two PFs (PF1 and PF2) is 16, the UE receives a second packet quantity parameter of 2, and according to the minimum RO packet granularity parameter and the RO group length parameter sent by the network device, it is determined that one RO group contains 4 ROs. With 4 ROs as one mapping unit, the ROs between PF1 and PF2 are mapped to two RO sets through two rounds of grouping.

[0360] In some embodiments, in the case that the number of ROs between the adjacent two PFs is an integer multiple of the minimum RO packet granularity parameter, the method further comprises:

[0361] The last RO that cannot form one RO group is allocated to a nearby RO set; the nearby RO set refers to the RO set mapped by the last RO group.

[0362] Specifically, if the number of ROs between the adjacent two PFs is an integer multiple of the minimum RO packet granularity parameter, after one or more rounds of RO grouping with one RO group as one mapping unit, there is a last RO that cannot form one RO group. The last RO is allocated to a nearby RO set, and the nearby RO set refers to the RO set mapped by the last RO group.

[0363] For example, the number of ROs between two adjacent PFs is 36, the network device sends the UE a second grouping number parameter N (N=4), a minimum RO grouping granularity parameter a (a=4), and a RO group length parameter p (p=2), and after the UE receives these parameters, it can be known that the number of ROs between two adjacent PFs is an integer multiple of the minimum RO grouping granularity parameter, the length of a mapping unit, i.e., a RO group, is a×p=8, after the first round of grouping (including 4 mappings), each RO set is allocated 8 ROs, at this time, there are still 4 ROs left, i.e., there is one RO of the minimum RO grouping granularity left, and the remaining ROs are not enough to form a mapping unit, so the remaining 4 ROs are allocated to the adjacent RO set, i.e., the 4th RO set, to complete the grouping of all ROs between two adjacent PFs.

[0364] In some embodiments, in the case that the number of ROs between the two adjacent PFs is not an integer multiple of the minimum RO grouping granularity parameter, the method further comprises:

[0365] Discarding the end ROs that do not meet the minimum RO grouping granularity parameter.

[0366] Specifically, if the number of ROs between two adjacent PFs is not an integer multiple of the minimum RO grouping granularity parameter, after one or more rounds of RO grouping with a RO group as a mapping unit, the number of remaining ROs is less than one minimum RO grouping granularity parameter, then the remaining ROs (end ROs) are discarded.

[0367] For example, the number of ROs between two adjacent PFs is 34, the network device sends the UE a second grouping number parameter N (N=4), a minimum RO grouping granularity parameter a (a=4), and a RO group length parameter p (p=2), and after the UE receives these parameters, it can be known that the number of ROs between two adjacent PFs is not an integer multiple of the minimum RO grouping granularity parameter, the length of a mapping unit, i.e., a RO group, is a×p=8, after the first round of grouping (including 4 mappings), each RO set is allocated 8 ROs, at this time, there are still 2 ROs left, which do not meet one minimum RO grouping granularity, so the remaining 2 ROs are discarded, to complete the grouping of ROs between two adjacent PFs.

[0368] In the embodiments of the present disclosure, FIG. 5 is a schematic diagram of a scenario in which legacy ROs do not participate in RO grouping, as shown in FIG. 5, in order to avoid affecting legacy UEs, the network device can configure the legacy ROs between two adjacent PFs not to participate in mapping (not to participate in RO grouping), and only map additional ROs (such as the ROs corresponding to set 1 and set 2 in FIG. 5), so that additional UEs will not be mapped to legacy ROs, thereby minimizing the impact on legacy UEs.

[0369] In the embodiments of the present disclosure, the UE determines the RO distribution (including the legacy RO and / or the additional RO) according to the RO index configured by the network device, and then performs RO grouping based on the second parameter configured by the base station.

[0370] The method for determining the random access occasion set provided in the embodiments of the present disclosure groups the ROs with one RO group as a mapping unit, and allocates the last RO that meets a minimum RO grouping granularity but cannot form an RO group to a neighboring RO set, or directly discards the last RO that does not meet a minimum RO grouping granularity, thereby reasonably and effectively grouping the ROs between two adjacent PFs, improving the accuracy of target RO set determination, and improving the success rate of initial random access.

[0371] In some embodiments, the method further includes:

[0372] receiving RO switching indication information sent by the network device;

[0373] performing RO switching according to the RO switching indication information, and grouping the ROs after switching.

[0374] Specifically, in the grouping mapping process, there can be a case of RO adaptive adjustment. FIG. 6 is a scenario diagram of RO adaptive adjustment provided in the embodiments of the present disclosure. As shown in FIG. 6, the network device can issue RO switching indication information at a certain time point (i.e., the RO adaptive switching time point in FIG. 6). The RO switching indication information can be carried by DCI or SIB1 or other high-layer signaling. The UE receives the RO switching indication information and performs RO switching (the dashed box in FIG. 6 represents the switched RO) according to the RO switching indication information, and groups the ROs after switching.

[0375] For example, the network device sends RO switching indication information at a certain time point. After the UE receives the RO switching indication information, if one or more ROs at the last position between two adjacent PFs are to be switched according to the RO switching indication information, the UE re-groups the added or reduced RO(s) at this position or re-groups all the ROs between the two adjacent PFs after RO switching.

[0376] For another example, the network device sends RO switching indication information at a certain time point. After the UE receives the RO switching indication information, if one or more ROs at a non-last position between two adjacent PFs are to be switched according to the RO switching indication information, the UE re-groups all the ROs between the two adjacent PFs after RO switching.

[0377] The method for determining a random access occasion set provided by the embodiments of the present disclosure groups the ROs after switching completion when the ROs are adaptively adjusted, ensures the effectiveness of the RO set, and can determine whether all ROs between adjacent two PFs need to be regrouped according to the position of the switching ROs. When the position of the switching ROs is at the end position, it is not necessary to regroup all ROs, which simplifies the operation and reduces the consumption.

[0378] In some embodiments, the method further includes:

[0379] receiving RO grouping indication information sent by the network device.

[0380] Specifically, a RO regrouping method in the RO adaptive adjustment scenario is that the network device indicates that a new RO grouping rule, i.e., RO grouping indication information, needs to be issued at the same time when the ROs are switched (i.e., when the RO switching indication information is sent to the UE), so as to ensure that all UEs can understand and apply the new RO grouping rule after the switching takes effect.

[0381] The RO grouping indication information can include a new minimum RO grouping granularity parameter and / or a new RO group size parameter, etc. The second grouping number parameter remains unchanged.

[0382] When the DCI is used to carry the RO grouping indication information, the base station needs to add a 1-bit indication information in the SIB1, which is used to indicate the UE receiving the SIB1 after the grouping rule is updated, to inform that the RO grouping rule of the current system has been updated, and the UE needs to discard the default mapping relationship configuration and wait to receive the next DCI / SIB1.

[0383] For additional UEs such as R-19 UEs, there are the following two cases in the difference (DCI or SIB1) of the signaling according to which the RO grouping related parameters (such as the minimum RO grouping granularity parameter and / or the new RO group size parameter, etc.) are switched. If the RO grouping related parameter switching indicated by the DCI is received, the new RO grouping related parameter and grouping method indicated by the DCI can be used. If the RO grouping related parameter switching indicated by the SIB1 is received, the UE needs to determine whether the DCI indicates the RO grouping rule switching according to the above-mentioned 1-bit indication information, and if so, the UE needs to wait for the next DCI to determine the new grouping rule.

[0384] If the additional UE such as the R-19 UE only receives the RO configuration update and does not receive the indication or configuration update of the RO grouping rule, the UE uses the original RO grouping rule to group the ROs.

[0385] In some embodiments, the grouping of the ROs after switching completion includes:

[0386] group the ROs after the switching based on the RO grouping indication information.

[0387] Specifically, the network device sends the RO switching indication information and the RO grouping indication information to the UE at the same time, the UE receives the RO switching indication information and the RO grouping indication information, performs RO switching according to the RO switching indication information, and groups the ROs after the switching based on the RO grouping indication information.

[0388] The method for determining a random access occasion set provided by the embodiments of the present disclosure groups the ROs using a new RO grouping rule sent by the network device at the same time when the network device indicates RO switching, guarantees that the UE can quickly complete RO regrouping after the switching takes effect at a time point, ensures the accuracy of the RO set, helps update the RO set in real time, and thus reduces the initial random access delay.

[0389] In some embodiments, the grouping the ROs after the switching comprises:

[0390] re-grouping the ROs between two adjacent PFs based on the second parameter.

[0391] Specifically, the network device only sends the RO switching indication information and does not send a new RO grouping rule, that is, does not make any adjustment to the original RO grouping rule, the UE receives the RO switching indication information, performs RO switching according to the RO switching indication information, and uses the original RO grouping manner, that is, re-groups the ROs between two adjacent PFs based on the second parameter, and needs to meet the minimum granularity restriction condition.

[0392] The method for determining a random access occasion set provided by the embodiments of the present disclosure re-groups the ROs between two adjacent PFs using the original RO grouping rule when the network device indicates RO switching, and reduces signaling interaction.

[0393] The method for determining a random access occasion set provided by the embodiments of the present disclosure can configure a larger R-19N for R-19 UE, thereby realizing more concentrated distribution of PO, making the base station sleep for a longer time, and meeting the energy saving demand; solves the problem of a large number of access failures caused by a large number of UEs competing for ROs after adjacent PFs after PO / PF concentration, can quickly determine the target RO set corresponding to the PO listened by the UE, smoothly starts the initial random access process, reduces the initial access delay, and reduces power waste; also realizes the differentiation of legacy PO and additional PO, and minimizes the impact on legacy UE.

[0394] Figure 7 is a flow diagram of a second embodiment of a method for determining a random access occasion set according to the present disclosure. As shown in Figure 7, the method for determining a random access occasion set can be performed by a network device, such as a base station, etc. The method includes the following steps.

[0395] In step 701, a first number of groups parameter and a second number of groups parameter are sent to the UE. The first number of groups parameter is the number of PO sets. The second number of groups parameter is the number of RO sets. The first number of groups parameter and the second number of groups parameter have a first association relationship. M and N are positive integers.

[0396] In some embodiments, the method further includes:

[0397] In some embodiments, the method further includes:

[0398] In some embodiments, the method further includes:

[0399] In some embodiments, the method further includes:

[0400] In some embodiments, the method further includes:

[0401] In some embodiments, the method further includes:

[0402] In some embodiments, the method further includes:

[0403] In some embodiments, the method further includes:

[0404] In some embodiments, the method further includes:

[0405] In some embodiments, the method further includes:

[0406] Specifically, the method for determining a random access occasion set according to the present disclosure can refer to the method for determining a random access occasion set according to the above-described embodiments of the terminal, and can achieve the same technical effects. Therefore, the same parts and beneficial effects of the above-described embodiments of the method are not described in detail herein.

[0407] Figure 8 is a schematic diagram of a structure of a terminal according to an embodiment of the present disclosure. As shown in Figure 8, the terminal comprises a memory 803, a transceiver 801, and a processor 802, wherein:

[0408] The memory 803 is configured to store a computer program; the transceiver 801 is configured to transceive data under control of the processor 802; and the processor 802 is configured to read the computer program in the memory 803 and perform the following operations:

[0409] determining a target set of paging occasions (POs); the target set of POs is one of M sets of POs;

[0410] determining a target set of random access occasions (ROs) based on the target set of POs and a first association relationship; the target set of ROs is one of N sets of ROs, and the M sets of POs and the N sets of ROs have the first association relationship; M and N are both positive integers.

[0411] In Figure 8, the bus architecture can comprise any number of interconnected buses and bridges, which are collectively represented by the processor 802 and the various circuits linked to the memory 803, one or more processors, and the memory. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus, are not described further herein. The bus interface provides an interface. The transceiver 801 can be a plurality of elements, i.e., comprising a transmitter and a receiver, which provide units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and the like. The user interface 804 can also be an interface capable of connecting to the required devices externally or internally for different user devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0412] The processor 802 is responsible for managing the bus architecture and general processing, and the memory 803 can store data used by the processor 802 when performing operations.

[0413] In some embodiments, the processor 802 can 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 can also adopt a multi-core architecture.

[0414] The processor executes any of the methods provided by the embodiments of the present disclosure by calling the computer program stored in the memory according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0415] In some embodiments, the ROs included in one of the RO sets include at least one of the following:

[0416] ROs corresponding to completion of J synchronization signal blocks (SSBs) to RO mapping; J is a positive integer;

[0417] ROs corresponding to K physical random access channel (PRACH) association periods; K is a positive integer;

[0418] ROs corresponding to L PRACH association pattern periods; L is a positive integer;

[0419] ROs corresponding to S PRACH configuration periods; S is a positive integer;

[0420] ROs corresponding to a first time length; the first time length is predefined or configured by a network.

[0421] In some embodiments, the first association relationship includes at least one of the following:

[0422] The i th PO set in the M PO sets is associated with the j th RO set in the N RO sets; i is a positive integer and the value range of i is 1 to M; j is a positive integer and the value range of j is 1 to N;

[0423] The i th PO set in the M PO sets is associated with the i+k th RO set in the N RO sets; k is a mapping relationship shift parameter, and the mapping relationship shift parameter is configured by a network device;

[0424] Multiple PO sets in the M PO sets are associated with the j th RO set in the N RO sets;

[0425] The i th PO set in the M PO sets is associated with multiple RO sets in the N RO sets.

[0426] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0427] determining a first parameter; the first parameter includes at least one of the following:

[0428] a first grouping number parameter; the first grouping number parameter is the number of PO sets;

[0429] a PO set size parameter, the PO set size parameter being a number of POs in each set to which each mapping in each grouping is mapped, each grouping comprising one or more mappings;

[0430] a PO number parameter, the PO number parameter being a logical sequence number of a PO in a paging radio frame PF.

[0431] In some embodiments, the determining the target paging occasion (PO) set comprises:

[0432] determining a number of the target PO set based on the first parameter;

[0433] determining the target PO set from the M PO sets according to the number of the target PO set.

[0434] In some embodiments, the determining the number of the target PO set based on the first parameter comprises:

[0435] taking an integer division of the number of POs listened to by the UE and the first grouping number parameter to obtain the number of the target PO set; or

[0436] taking a modulo of the number of POs listened to by the UE and the first grouping number parameter to obtain the number of the target PO set; or

[0437] taking a difference between the number of POs listened to by the UE and a first PO number as the number of the target PO set, the first PO number being a number of POs of a first type contained in a PF to which the POs listened to by the UE belong.

[0438] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0439] grouping POs in one PF based on the first parameter to obtain M PO sets.

[0440] In some embodiments, in a case where a number of POs in the PF is an integer multiple of the first grouping number parameter, the grouping the POs in one PF based on the first parameter to obtain M PO sets comprises:

[0441] equally dividing the POs in the PF based on the first grouping number parameter to obtain the first grouping number parameter PO sets.

[0442] In some embodiments, in a case where a number of POs in the PF is not an integer multiple of the first grouping number parameter, the grouping the POs in one PF based on the first parameter to obtain M PO sets comprises:

[0443] grouping the POs in the PF based on the first grouping number parameter to obtain first grouping number parameter initial sets; the number of POs in each initial set is equal to the value obtained by rounding down the quotient of the number of POs in the PF and the first grouping number parameter;

[0444] allocating the tail POs to the first or last of the first grouping number parameter initial sets to obtain the first grouping number parameter PO sets; the tail POs refer to the POs remaining after the POs in the PF are grouped into the first grouping number parameter initial sets.

[0445] In some embodiments, the grouping the POs in a PF based on the first parameter to obtain M PO sets comprises:

[0446] mapping the POs in the PF to the first grouping number parameter PO sets based on the first grouping number parameter and through one or more rounds of grouping, with a PO set size parameter POs as a mapping unit.

[0447] In some embodiments, the mapping the POs in the PF to the first grouping number parameter PO sets comprises:

[0448] sequentially arranging the POs in the PF in ascending order according to a PO number parameter;

[0449] sequentially mapping the POs in the PF to the first grouping number parameter PO sets.

[0450] In some embodiments, the determining the first parameter comprises:

[0451] receiving the first grouping number parameter sent by the network device; or

[0452] receiving the PO set size parameter sent by the network device;

[0453] determining the first grouping number parameter based on the number of POs contained in the PF to which the PO listened by the UE and the PO set size parameter.

[0454] In some embodiments, the determining the first parameter comprises:

[0455] receiving the PO set size parameter sent by the network device; or

[0456] receiving the first grouping number parameter sent by the network device;

[0457] determining the PO set size parameter based on the number of POs contained in the PF to which the PO listened by the UE and the first grouping number parameter.

[0458] In some embodiments, the determining the target RO set based on the target PO set and the first association relationship comprises:

[0459] determining, based on the first association relationship, a number of the target PO set corresponding to a number of the target RO set;

[0460] determining the target RO set according to the number of the target RO set.

[0461] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0462] receiving a second parameter sent by a network device;

[0463] grouping ROs between two adjacent PFs based on the second parameter to obtain N RO sets;

[0464] The second parameter comprises at least one of:

[0465] a second grouping number parameter; the second grouping number parameter is the number of RO sets;

[0466] a minimum RO grouping granularity parameter;

[0467] an RO group size parameter; the RO group size parameter is used to indicate the length of an RO group.

[0468] In some embodiments, the grouping the ROs between the two adjacent PFs based on the second parameter to obtain N RO sets comprises:

[0469] taking one RO group as one mapping unit, mapping the ROs between the two adjacent PFs to the second grouping number parameter RO sets based on the second grouping number parameter and through one or more rounds of grouping; the length of the one RO group is the minimum RO grouping granularity parameter multiplied by the RO group length parameter.

[0470] In some embodiments, in a case where the number of the ROs between the two adjacent PFs is an integer multiple of the minimum RO grouping granularity parameter, the processor is further configured to read a computer program in the memory and perform the following operations:

[0471] allocating the last RO that cannot form an RO group to a nearby RO set; the nearby RO set refers to the RO set to which the last RO group is mapped.

[0472] In some embodiments, in a case where the number of the ROs between the two adjacent PFs is not an integer multiple of the minimum RO grouping granularity parameter, the processor is further configured to read a computer program in the memory and perform the following operations:

[0473] Discarding the tail ROs that do not meet the minimum RO grouping granularity parameter.

[0474] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0475] receiving RO switching indication information sent by a network device;

[0476] performing RO switching according to the RO switching indication information, and grouping the ROs after switching is completed.

[0477] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0478] receiving RO grouping indication information sent by a network device.

[0479] In some embodiments, the grouping the ROs after switching is completed comprises:

[0480] grouping the ROs after switching is completed based on the RO grouping indication information.

[0481] In some embodiments, the grouping the ROs after switching is completed comprises:

[0482] re-grouping the ROs between two adjacent PFs based on the second parameter.

[0483] It should be noted that the above terminal provided by the embodiments of the present disclosure can realize all the method steps realized by the method embodiments of the above execution subject being the terminal, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments in the present embodiments will not be described in detail.

[0484] FIG. 9 is a structural schematic diagram of a network device provided by an embodiment of the present disclosure. As shown in FIG. 9, the network device comprises a memory 903, a transceiver 901, and a processor 902, wherein:

[0485] The memory 903 is configured to store a computer program; the transceiver 901 is configured to transceive data under the control of the processor 902; and the processor 902 is configured to read the computer program in the memory 903 and perform the following operations:

[0486] sending a first grouping number parameter and a second grouping number parameter to a UE; the first grouping number parameter is the number of PO sets; the second grouping number parameter is the number of RO sets; the first grouping number parameter of PO sets and the second grouping number parameter of RO sets have a first correlation relationship; and M and N are both positive integers.

[0487] In FIG. 9, the bus architecture can include any number of interconnected buses and bridges, specifically, various circuitry linking one or more processors, represented by the processor 902, and memory, represented by the memory 903. The bus architecture can also link various other circuitry, such as peripheral devices, voltage regulators, and power management circuitry, which are well known in the art and thus, are not further described herein. The bus interface provides an interface. The transceiver 901 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, and the like. The processor 902 is responsible for managing the bus architecture and general processing, and the memory 903 can store data used by the processor 902 in executing operations.

[0488] The processor 902 can 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 can also adopt a multi-core architecture.

[0489] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0490] sending a PO set size parameter to the UE; the PO set size parameter is the number of POs in each set to which each mapping in each round of grouping is mapped, and each round of grouping includes one or more mappings.

[0491] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0492] sending a RO group size parameter and a minimum RO grouping granularity parameter to the UE; the RO group size parameter is used to indicate the length of one RO group, and the length of the one RO group is the RO group length parameter multiplied by the minimum RO grouping granularity parameter.

[0493] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0494] sending RO switching indication information to the UE.

[0495] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0496] sending RO grouping indication information to the UE; the RO grouping indication information is used to indicate a grouping manner of ROs after RO switching is completed.

[0497] In some embodiments, the processor is further configured to read a computer program in the memory and perform the following operations:

[0498] sending a mapping relationship shift parameter to the UE; the mapping relationship shift parameter is used to indicate the first association relationship.

[0499] Specifically, the network device provided by the embodiment of the present disclosure can implement all the method steps of the method embodiment of the execution subject being the network device, and achieve the same technical effects. Here, the same parts and beneficial effects of the method embodiment in this embodiment will not be described in detail.

[0500] FIG. 10 is a structural schematic diagram of a random access occasion set determination apparatus provided by an embodiment of the present disclosure. As shown in FIG. 10, the random access occasion set determination apparatus provided by an embodiment of the present disclosure includes a target PO set determination module 1001 and a target RO set determination module 1002, wherein:

[0501] The target PO set determination module 1001 is configured to determine a target PO set; the target PO set is one of M PO sets;

[0502] The target RO set determination module 1002 is configured to determine a target RO set based on the target PO set and a first association relationship; the target RO set is one of N RO sets; the M PO sets and the N RO sets have the first association relationship; M and N are both positive integers.

[0503] In some embodiments, the ROs included in one RO set include at least one of the following:

[0504] ROs corresponding to J times of synchronization signal block (SSB) to RO mapping; J is a positive integer;

[0505] ROs corresponding to K physical random access channel (PRACH) association periods; K is a positive integer;

[0506] ROs corresponding to L PRACH association pattern periods; L is a positive integer;

[0507] ROs corresponding to S PRACH configuration periods; S is a positive integer;

[0508] a first time length corresponding to a first RO; the first time length is predefined or configured by a network.

[0509] In some embodiments, the first association relationship includes at least one of:

[0510] an ith PO set in the M PO sets is associated with a jth RO set in the N RO sets; i is a positive integer and the value range of i is 1 to M; j is a positive integer and the value range of j is 1 to N;

[0511] an ith PO set in the M PO sets is associated with an i+kth RO set in the N RO sets; k is a mapping relationship shift parameter, and the mapping relationship shift parameter is configured by a network device;

[0512] a plurality of PO sets in the M PO sets are associated with a jth RO set in the N RO sets;

[0513] an ith PO set in the M PO sets is associated with a plurality of RO sets in the N RO sets.

[0514] In some embodiments, further comprising:

[0515] a first parameter determination module configured to determine a first parameter; the first parameter includes at least one of:

[0516] a first group number parameter; the first group number parameter is the number of PO sets;

[0517] a PO set size parameter; the PO set size parameter is the number of POs in each set mapped in each round of grouping, and each round of grouping includes one or more mappings;

[0518] a PO number parameter; the PO number parameter is the logical serial number of a PO in a paging radio frame PF.

[0519] In some embodiments, the target PO set determination module includes:

[0520] a first determination submodule configured to determine the number of the target PO set based on the first parameter;

[0521] a second determination submodule configured to determine the target PO set from the M PO sets according to the number of the target PO set.

[0522] In some embodiments, the first determination submodule includes:

[0523] The first obtaining unit is configured to obtain the number of the target PO set by performing floor operation on the number parameter of the PO monitored by the UE and the first group quantity parameter; or

[0524] The second obtaining unit is configured to obtain the number of the target PO set by performing modulo operation on the number parameter of the PO monitored by the UE and the first group quantity parameter; or

[0525] The third obtaining unit is configured to obtain the number of the target PO set by taking the difference between the number parameter of the PO monitored by the UE and the first PO quantity as the number of the target PO set, wherein the first PO quantity is the number of POs of the first type contained in the PF to which the PO monitored by the UE belongs.

[0526] In some embodiments, the method further comprises:

[0527] The PO grouping module is configured to group the POs in the PF based on the first parameter to obtain M PO sets.

[0528] In some embodiments, when the number of the POs in the PF is an integer multiple of the first group quantity parameter, the PO grouping module comprises:

[0529] The first PO grouping submodule is configured to equally divide the POs in the PF based on the first group quantity parameter to obtain the first group quantity parameter PO sets.

[0530] In some embodiments, when the number of the POs in the PF is not an integer multiple of the first group quantity parameter, the PO grouping module comprises:

[0531] The second PO grouping submodule is configured to group the POs in the PF based on the first group quantity parameter to obtain the first group quantity parameter initial sets; the number of POs in each initial set is equal to the value obtained by performing floor operation on the number of the POs in the PF and the first group quantity parameter.

[0532] The last PO is assigned to the first initial set or the last initial set among the first group quantity parameter initial sets to obtain the first group quantity parameter PO sets; the last PO refers to the PO remaining after the POs in the PF are grouped into the first group quantity parameter initial sets.

[0533] In some embodiments, the PO grouping module comprises:

[0534] The third PO grouping submodule is configured to map the POs in the PF to the first group quantity parameter PO sets based on the first group quantity parameter and through one or more rounds of grouping with the PO set size parameter POs as a mapping unit.

[0535] In some embodiments, the third PO grouping submodule comprises:

[0536] an arranging unit, configured to arrange the POs in the PF in ascending order according to a number parameter of the POs;

[0537] a mapping unit, configured to sequentially map the POs in the PF to a first number of PO sets.

[0538] In some embodiments, the first parameter determination module comprises:

[0539] a first receiving submodule, configured to receive a first number of PO sets parameter sent by the network device; or

[0540] a second receiving submodule, configured to receive a PO set size parameter sent by the network device;

[0541] a third determination submodule, configured to determine the first number of PO sets parameter based on a number of POs contained in a PF to which a PO listened to by the UE belongs and the PO set size parameter.

[0542] In some embodiments, the first parameter determination module comprises:

[0543] a second receiving submodule, configured to receive a PO set size parameter sent by the network device; or

[0544] a first receiving submodule, configured to receive a first number of PO sets parameter sent by the network device;

[0545] a fourth determination submodule, configured to determine the PO set size parameter based on a number of POs contained in a PF to which a PO listened to by the UE belongs and the first number of PO sets parameter.

[0546] In some embodiments, the target RO set determination module comprises:

[0547] a fifth determination submodule, configured to determine a number of the target RO set corresponding to a number of the target PO set based on the first association relationship;

[0548] a sixth determination submodule, configured to determine the target RO set according to the number of the target RO set.

[0549] In some embodiments, the method further comprises:

[0550] a first receiving module, configured to receive a second parameter sent by the network device;

[0551] a first RO grouping module, configured to group ROs between two adjacent PFs based on the second parameter to obtain N RO sets;

[0552] The second parameter comprises at least one of:

[0553] A second number-of-group parameter; the second number-of-group parameter is the number of RO sets.

[0554] A minimum RO grouping granularity parameter.

[0555] An RO group size parameter; the RO group size parameter is used to indicate the length of one RO group.

[0556] In some embodiments, the first RO grouping module comprises:

[0557] A first RO grouping submodule, used to map the ROs between the adjacent two PFs to the second number-of-group parameter of RO sets based on the second number-of-group parameter and through one or more rounds of grouping, with one RO group as one mapping unit; the length of one RO group is the minimum RO grouping granularity parameter multiplied by the RO group length parameter.

[0558] In some embodiments, in the case that the number of ROs between the adjacent two PFs is an integer multiple of the minimum RO grouping granularity parameter, further comprising:

[0559] A first end RO allocation unit, used to allocate the end ROs that cannot form one RO group to the adjacent RO set; the adjacent RO set refers to the RO set to which the last RO group is mapped.

[0560] In some embodiments, in the case that the number of ROs between the adjacent two PFs is not an integer multiple of the minimum RO grouping granularity parameter, further comprising:

[0561] A second end RO allocation unit, used to discard the end ROs that do not meet the minimum RO grouping granularity parameter.

[0562] In some embodiments, further comprising:

[0563] A second receiving module, used to receive the RO switching indication information sent by the network device.

[0564] A second RO grouping module, used to perform RO switching according to the RO switching indication information and group the ROs after switching.

[0565] In some embodiments, further comprising:

[0566] A third receiving module, used to receive the RO grouping indication information sent by the network device.

[0567] In some embodiments, the second RO grouping module comprises:

[0568] A second RO grouping submodule is configured to group the ROs after the handover based on the RO grouping indication information.

[0569] In some embodiments, the grouping of the ROs after the handover comprises:

[0570] A third RO grouping module is configured to re-group the ROs between two adjacent PFs based on the second parameter.

[0571] Specifically, the above-described determination apparatus of the random access occasion set can implement all the method steps of the method embodiment in which the execution subject is the terminal, and can achieve the same technical effects. Here, the same parts and beneficial effects of the method embodiment in this embodiment will not be described in detail.

[0572] FIG. 11 is a structural schematic diagram of a determination apparatus of a random access occasion set according to an embodiment of the present disclosure. As shown in FIG. 11, the determination apparatus of the random access occasion set comprises a first sending module 1101.

[0573] The first sending module 1101 is configured to send a first grouping number parameter and a second grouping number parameter to the UE. The first grouping number parameter is the number of PO sets, and the second grouping number parameter is the number of RO sets. The first grouping number parameter and the second grouping number parameter have a first correlation relationship. M and N are both positive integers.

[0574] In some embodiments, the apparatus further comprises:

[0575] A second sending module is configured to send a PO set size parameter to the UE. The PO set size parameter is the number of POs in each set mapped in each round of grouping. Each round of grouping comprises one or more mappings.

[0576] In some embodiments, the apparatus further comprises:

[0577] A third sending module is configured to send an RO group size parameter and a minimum RO grouping granularity parameter to the UE. The RO group size parameter is used to indicate the length of an RO group, and the length of the RO group is the product of the RO group length parameter and the minimum RO grouping granularity parameter.

[0578] In some embodiments, the apparatus further comprises:

[0579] A fourth sending module is configured to send RO switching indication information to the UE.

[0580] In some embodiments, the apparatus further comprises:

[0581] The fifth sending module is configured to send RO grouping indication information to the UE, wherein the RO grouping indication information is used to indicate a grouping manner of the ROs after the RO switching is completed.

[0582] In some embodiments, further comprising:

[0583] The sixth sending module is configured to send a mapping relationship shift parameter to the UE, wherein the mapping relationship shift parameter is used to indicate the first association relationship.

[0584] Specifically, the determination apparatus for the random access occasion set provided by the embodiments of the present disclosure can realize all the method steps of the method embodiments in which the execution subject is a network device, and achieve the same technical effects. Here, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0585] It should be noted that the division of units / modules in the above embodiments of the present disclosure is illustrative, and is only a logical function division. When actually implemented, another division manner can be used. In addition, each functional unit in each embodiment of the present disclosure can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0586] When the integrated unit is realized 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 solutions of the present disclosure, essentially or the part that contributes to the related art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present disclosure. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and various other media that can store program codes.

[0587] In some embodiments, a non-transitory readable storage medium is further provided, which stores a computer program. The computer program is used to cause a processor to execute the random access occasion set determination method provided by the above-mentioned method embodiments.

[0588] Specifically, the non-transitory readable storage medium provided by the embodiments of the present disclosure can realize all the method steps of the method embodiments and achieve the same technical effects. Details are not described herein again for the same parts and beneficial effects of the method embodiments.

[0589] It should be noted that the non-transitory readable storage medium can be any available medium or data storage device accessible by the processor, including but not limited to a magnetic memory (for example, a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical memory (for example, a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (for example, a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid state disk (SSD), etc.).

[0590] In some embodiments, a processor-readable storage medium is also provided, which stores a computer program for causing a processor to perform the method for determining a random access occasion set provided by each of the method embodiments.

[0591] Specifically, the processor-readable storage medium provided by the embodiments of the present disclosure can realize all the method steps of the method embodiments and achieve the same technical effects. Details are not described herein again for the same parts and beneficial effects of the method embodiments.

[0592] In some embodiments, a computer-readable storage medium is also provided, which stores a computer program for causing a computer to perform the method for determining a random access occasion set provided by each of the method embodiments.

[0593] Specifically, the computer-readable storage medium provided by the embodiments of the present disclosure can realize all the method steps of the method embodiments and achieve the same technical effects. Details are not described herein again for the same parts and beneficial effects of the method embodiments.

[0594] In some embodiments, a communication device is also provided, which stores a computer program for causing the communication device to perform the method for determining a random access occasion set provided by each of the method embodiments.

[0595] Specifically, the communication device provided by the embodiments of the present disclosure can realize all the method steps of the method embodiments and achieve the same technical effects. Details are not described herein again for the same parts and beneficial effects of the method embodiments.

[0596] In some embodiments, a chip product is also provided, wherein the chip product stores a computer program, and the computer program is used to make the chip product execute the determination method of the random access occasion set provided by each method embodiment.

[0597] Specifically, the chip product provided by the embodiments of the present disclosure can implement all the method steps realized by the above-mentioned method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0598] In addition, it should be noted that the terms "first", "second" and the like in the embodiments of the present disclosure are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally a category and do not limit the number of objects, for example, the first object can be one or more.

[0599] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0600] In the embodiments of the present disclosure, the term "a plurality of" means two or more, and other quantifiers are similar.

[0601] The technical solutions provided by the embodiments of the present disclosure can be applied to various systems, especially 5G systems or 6G systems. For example, the applicable systems can be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems, 6G systems, and the like. Among these various systems, there are terminal devices and network devices. The system can also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), and the like.

[0602] The terminal device to which the embodiments of the present disclosure relate can refer to a device providing voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device can also be different, for example, in the 5G system, the terminal device can be called a user equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) through a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal device, for example, it can be a portable, pocket, handheld, computer built-in or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal device can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, which is not limited in the embodiments of the present disclosure.

[0603] The network device related to the embodiments of the present disclosure can be a base station, which can include a plurality of cells serving terminals. According to different application scenarios, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminal devices through one or more sectors over an air interface, or other names. The network device can be used to exchange received air frames and Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which can include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the properties of the air interface. For example, the network device related to the embodiments of the present disclosure can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (LTE) system, or a 5G base station (gNB) in a next generation system, or a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., which are not limited in the embodiments of the present disclosure. In some network structures, the network device can include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit can also be geographically separated.

[0604] In the present disclosure, “determining B based on A” means that A is considered as a factor when determining B. It is not limited to “B can be determined based on A only”, but also includes “B is determined based on A and C”, “B is determined based on A, C and E”, “C is determined based on A, and B is further determined based on C”, and the like. In addition, it can also include that A is used as a condition for determining B, for example, “when A meets a first condition, B is determined using a first method”; for example, “when A meets a second condition, B is determined”; for example, “when A meets a third condition, B is determined based on a first parameter”; and the like. Of course, A can also be used as a condition for determining B, for example, “when A meets a first condition, C is determined using a first method, and B is further determined based on C”; and the like.

[0605] The network device and the terminal device can each use one or more antennas for multi-input multi-output (MIMO) transmission, which can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). According to the shape and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0606] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage, etc.) containing computer-usable program code.

[0607] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer executable instructions. These computer executable instructions can be provided to a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing apparatus produce a means for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0608] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart(s) or flowchart block or blocks and / or the function specified in the block diagram block or blocks.

[0609] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart(s) or flowchart block or blocks and / or the functions specified in the block diagram block or blocks.

[0610] Obviously, numerous modifications and variations of the present disclosure are possible in light of the above teachings. It is therefore to be understood that within the scope of the present disclosure, the disclosure can be practiced otherwise than as specifically set out herein. Accordingly, any one of the modifications or variations above can be combined with any other of the modifications or variations above to produce yet further modifications and variations within the scope of the present disclosure.

Claims

1. A method for determining a set of random access occasions, applied to a terminal UE, comprising: determining a target set of paging occasions (POs) ; the target set of POs is one of M sets of POs; determining a target set of random access occasions (ROs) based on the target set of POs and a first association relationship; the target set of ROs is one of N sets of ROs, and the M sets of POs and the N sets of ROs have the first association relationship; M and N are positive integers. An RO included in a set of ROs includes at least one of: ROs corresponding to J times of mapping of synchronization signal blocks (SSBs) to ROs; J is a positive integer; ROs corresponding to K physical random access channel (PRACH) association periods; K is a positive integer; ROs corresponding to L PRACH association pattern periods; L is a positive integer; ROs corresponding to S PRACH configuration periods; S is a positive integer; and ROs corresponding to a first time length; the first time length is predefined or configured by a network. The first association relationship includes at least one of: an i-th set of POs in the M sets of POs is associated with a j-th set of ROs in the N sets of ROs; i is a positive integer and the value range of i is 1 to M; j is a positive integer and the value range of j is 1 to N; an i-th set of POs in the M sets of POs is associated with an i+k-th set of ROs in the N sets of ROs; k is a mapping relationship shift parameter, and the mapping relationship shift parameter is configured by a network device; a plurality of sets of POs in the M sets of POs are associated with a j-th set of ROs in the N sets of ROs; and an i-th set of POs in the M sets of POs is associated with a plurality of sets of ROs in the N sets of ROs. The method further comprises: determining a first parameter; the first parameter includes at least one of: a first grouping number parameter; the first grouping number parameter is a number of sets of POs; a PO set size parameter; the PO set size parameter is a number of POs in each set to which mapping is performed each time in each round of grouping; each round of grouping includes one or more times of mapping; and a PO number parameter; the PO number parameter is a logical sequence number of a PO in a paging radio frame (PF). The determination of the target set of POs comprises: determining a number of the target set of POs based on the first parameter; and determining the target set of POs from the M sets of POs according to the number of the target set of POs. The determination of the number of the target set of POs based on the first parameter comprises: obtaining the number of the target set of POs by taking an integer part of a quotient of the number parameter of the PO listened to by the UE and the first grouping number parameter; or obtaining the number of the target set of POs by taking a modulus of the number parameter of the PO listened to by the UE and the first grouping number parameter; or taking a difference between the number parameter of the PO listened to by the UE and a first PO number as the number of the target set of POs; the first PO number is a number of POs of a first type included in a PF to which the PO listened to by the UE belongs. The method further comprises: ​ ​ 2. The method of determining a set of random access occasions according to claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ 3. The method of determining a set of random access occasions according to claim 1, wherein, ​ ​ ​ ​ ​ 4. The method of determining a set of random access occasions according to claim 1, wherein, ​ ​ ​ ​ ​ 5. The method of determining a set of random access occasions according to claim 4, wherein, ​ ​ ​ 6. The method of determining a set of random access occasions according to claim 5, wherein, ​ ​ ​ ​ 7. The method of determining a set of random access occasions according to claim 4, wherein, ​ group the POs in one PF into M PO sets based on the first parameter.

8. The method of determining a set of random access occasions according to claim 7, wherein, In a case where the number of the POs in the PF is an integer multiple of the first grouping quantity parameter, the grouping the POs in one PF into M PO sets based on the first parameter comprises: equally dividing the POs in the PF based on the first grouping quantity parameter to obtain the first grouping quantity parameter of PO sets.

9. The method of determining a set of random access occasions according to claim 7, wherein, In a case where the number of the POs in the PF is not an integer multiple of the first grouping quantity parameter, the grouping the POs in one PF into M PO sets based on the first parameter comprises: grouping the POs in the PF based on the first grouping quantity parameter to obtain the first grouping quantity parameter of initial sets; the number of the POs in each initial set is equal to a value obtained by rounding down a quotient of the number of the POs in the PF and the first grouping quantity parameter; allocating a tail PO to a first initial set or a last initial set in the first grouping quantity parameter of initial sets to obtain the first grouping quantity parameter of PO sets; the tail PO refers to a PO remaining after the POs in the PF are grouped into the first grouping quantity parameter of initial sets.

10. The method of determining a set of random access occasions according to claim 7, wherein, The grouping the POs in one PF into M PO sets based on the first parameter comprises: mapping the POs in the PF to the first grouping quantity parameter of PO sets based on the first grouping quantity parameter by one or more rounds of grouping with a PO set size parameter of POs as a mapping unit.

11. The method of determining a set of random access occasions according to claim 10, wherein, The mapping the POs in the PF to the first grouping quantity parameter of PO sets comprises: sequentially mapping the POs in the PF to the first grouping quantity parameter of PO sets in order. The determining the first parameter comprises:

12. The method for determining a set of random access occasions according to any one of claims 6, 8-10, wherein, receiving the first grouping quantity parameter sent by the network device; or receiving the PO set size parameter sent by the network device; determining the first grouping quantity parameter based on the number of the POs contained in the PF to which the PO listened by the UE and the PO set size parameter. The determining the first parameter comprises:

13. The method of determining a set of random access occasions according to claim 10, wherein, receiving the PO set size parameter sent by the network device; or receiving the first grouping quantity parameter sent by the network device; determining the PO set size parameter based on the number of the POs contained in the PF to which the PO listened by the UE and the first grouping quantity parameter. The determining the target RO set based on the target PO set and the first association relationship comprises:

14. The method of determining a set of random access occasions according to claim 1, wherein, determining the number of the target RO set corresponding to the number of the target PO set based on the first association relationship; determining the target RO set according to the number of the target RO set. The method further comprises:

15. The method of determining a set of random access occasions according to claim 1, wherein, receiving a second parameter sent by the network device; grouping the ROs between adjacent two PFs into N RO sets based on the second parameter; The second parameter comprises at least one of the following: a second grouping quantity parameter; the second grouping quantity parameter is the number of RO sets; a minimum RO grouping granularity parameter; ​ The RO group size parameter is used to indicate the length of one RO group.

16. The method for determining a set of random access occasions according to claim 15, wherein, The method further comprises: In the case that the number of ROs between the adjacent two PFs is an integer multiple of the minimum RO grouping granularity parameter, the method further comprises:

17. The method of determining a set of random access occasions according to claim 16, wherein, In the case that the number of ROs between the adjacent two PFs is not an integer multiple of the minimum RO grouping granularity parameter, the method further comprises: The method further comprises:

18. The method for determining a set of random access occasions according to claim 16, wherein, The method further comprises: The method further comprises:

19. The method of determining a set of random access occasions according to any one of claims 15 to 18, wherein, The method further comprises: The method further comprises: The method further comprises:

20. The method for determining a set of random access occasions according to claim 19, wherein, The method further comprises: The method further comprises:

21. The method of determining a set of random access occasions according to claim 20, wherein, The method further comprises: The method further comprises:

22. The method for determining a set of random access occasions according to claim 19, wherein, The method further comprises: The method further comprises: The method further comprises: The method further comprises: The method further comprises: The method further comprises:

24. The method for determining a set of random access occasions according to claim 23, wherein, The method further comprises: The method further comprises:

25. The method of determining a set of random access occasions according to claim 23, wherein, The method further comprises: The method further comprises:

26. The method for determining a set of random access occasions according to claim 23, wherein, The method further comprises: The method further comprises:

27. The method of determining a set of random access occasions according to claim 26, wherein, The method further comprises: The method further comprises:

28. 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further comprises: The method further comprises: The method further comprises: The method further comprises: The method further comprises: The method a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations: determining a target paging occasion, PO, set; the target PO set is one of M PO sets; determining a target random access occasion, RO, set based on the target PO set and a first association relationship; the target RO set is one of N RO sets, and the M PO sets and the N RO sets have the first association relationship; M and N are both positive integers.

30. The terminal of claim 29, wherein, The ROs included in one RO set include at least one of the following: ROs corresponding to J times of synchronization signal block, SSB, to RO mapping; J is a positive integer; ROs corresponding to K physical random access channel, PRACH, association periods; K is a positive integer; ROs corresponding to L PRACH association pattern periods; L is a positive integer; S PRACH configuration periods; S is a positive integer; ROs corresponding to a first time length; the first time length is predefined or configured by a network.

31. The terminal of claim 29, wherein, The first association relationship includes at least one of the following: The i th PO set in the M PO sets is associated with the j th RO set in the N RO sets; i is a positive integer and the value range of i is 1 to M; j is a positive integer and the value range of j is 1 to N; The i th PO set in the M PO sets is associated with the i+k th RO set in the N RO sets; k is a mapping relationship shift parameter, and the mapping relationship shift parameter is configured by a network device; Multiple PO sets in the M PO sets are associated with the j th RO set in the N RO sets; The i th PO set in the M PO sets is associated with multiple RO sets in the N RO sets.

32. The terminal of claim 29, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: determining a first parameter; the first parameter includes at least one of the following: a first grouping number parameter; the first grouping number parameter is the number of PO sets; a PO set size parameter; the PO set size parameter is the number of POs in each set to which mapping is performed in each round of grouping; each round of grouping includes one or more mappings; a PO number parameter; the PO number parameter is the logical serial number of a PO in a paging radio frame, PF.

33. The terminal of claim 32, wherein, The determination of the target PO set includes: determining the number of the target PO set based on the first parameter; determining the target PO set from the M PO sets according to the number of the target PO set.

34. The terminal of claim 33, wherein, The determination of the number of the target PO set based on the first parameter includes: taking the quotient of the number parameter of the PO listened to by the UE and the first grouping number parameter to the power of -1 to obtain the number of the target PO set; or taking the modulus of the number parameter of the PO listened to by the UE and the first grouping number parameter to obtain the number of the target PO set; or A difference between a number parameter of the POs monitored by the UE and a first PO quantity, as a number of the target PO set; the first PO quantity is a quantity of POs of a first type contained in a PF to which the POs monitored by the UE belong.

35. The terminal of claim 32, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: Group the POs in one PF based on the first parameter to obtain M PO sets.

36. The terminal of claim 35, wherein, In a case where the number of the POs in the PF is an integer multiple of the first grouping quantity parameter, the grouping the POs in one PF based on the first parameter to obtain M PO sets comprises: Equally divide the POs in the PF based on the first grouping quantity parameter to obtain the first grouping quantity parameter PO sets.

37. The terminal of claim 35, wherein, In a case where the number of the POs in the PF is not an integer multiple of the first grouping quantity parameter, the grouping the POs in one PF based on the first parameter to obtain M PO sets comprises: Group the POs in the PF based on the first grouping quantity parameter to obtain the first grouping quantity parameter initial sets; the number of POs in each initial set is equal to a value obtained by rounding down a quotient of the number of the POs in the PF and the first grouping quantity parameter; Assign a tail PO to a first initial set or a last initial set in the first grouping quantity parameter initial sets to obtain the first grouping quantity parameter PO sets; the tail PO refers to a PO remaining after the POs in the PF are grouped into the first grouping quantity parameter initial sets.

38. The terminal of claim 35, wherein, The grouping the POs in one PF based on the first parameter to obtain M PO sets comprises: Map the POs in the PF to the first grouping quantity parameter PO sets based on the first grouping quantity parameter and through one or more rounds of grouping with a PO set size parameter PO as a mapping unit.

39. The terminal of claim 38, wherein, The mapping the POs in the PF to the first grouping quantity parameter PO sets comprises: Arrange the POs in the PF in ascending order according to a number parameter of the POs; Map the POs in the PF to the first grouping quantity parameter PO sets in sequence.

40. The terminal of any one of claims 34, 36-38, wherein, Determining the first parameter comprises: Receiving the first grouping quantity parameter sent by the network device; or Receiving the PO set size parameter sent by the network device; Determining the first grouping quantity parameter based on a quantity of POs contained in a PF to which the POs monitored by the UE belong and the PO set size parameter.

41. The terminal of claim 38, wherein, The determining the first parameter comprises: Receiving the PO set size parameter sent by the network device; or Receiving the first grouping quantity parameter sent by the network device; Determining the PO set size parameter based on a quantity of POs contained in a PF to which the POs monitored by the UE belong and the first grouping quantity parameter.

42. The terminal of claim 29, wherein, The determining the target RO set based on the target PO set and the first association relationship comprises: Determining a number of the target RO set corresponding to a number of the target PO set based on the first association relationship; Determining the target RO set according to the number of the target RO set.

43. The terminal of claim 29, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: receive a second parameter sent by a network device; group ROs between two adjacent PFs based on the second parameter to obtain N RO sets; The second parameter includes at least one of the following: a second grouping number parameter; the second grouping number parameter is the number of RO sets; a minimum RO grouping granularity parameter; an RO group size parameter; the RO group size parameter is used to indicate the length of an RO group.

44. The terminal of claim 43, wherein, The grouping of the ROs between the two adjacent PFs based on the second parameter to obtain N RO sets includes: mapping the ROs between the two adjacent PFs to the second grouping number parameter of RO sets as one mapping unit based on the second grouping number parameter and through one or more rounds of grouping; the length of one RO group is the minimum RO grouping granularity parameter multiplied by the RO group length parameter.

45. The terminal of claim 44, wherein, In a case where the number of ROs between the two adjacent PFs is an integer multiple of the minimum RO grouping granularity parameter, the processor is further configured to read the computer program in the memory and perform the following operations: allocate the last RO that cannot form an RO group to a nearby RO set; the nearby RO set refers to the RO set to which the last RO group is mapped.

46. The terminal of claim 44, wherein, In a case where the number of ROs between the two adjacent PFs is not an integer multiple of the minimum RO grouping granularity parameter, the processor is further configured to read the computer program in the memory and perform the following operations: discard the last RO that does not meet the minimum RO grouping granularity parameter.

47. The terminal of any one of claims 43 to 46, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: receive RO switching indication information sent by a network device; perform RO switching according to the RO switching indication information, and group the ROs after switching.

48. The terminal of claim 47, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: receive RO grouping indication information sent by a network device.

49. The terminal of claim 48, wherein, The grouping of the ROs after switching includes: grouping the ROs after switching based on the RO grouping indication information.

50. The terminal of claim 47, wherein, The grouping of the ROs after switching includes: re-grouping the ROs between the two adjacent PFs based on the second parameter.

51. A network device, comprising a memory, a transceiver, and a processor; the memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations: send a first grouping number parameter and a second grouping number parameter to a UE; the first grouping number parameter is the number of PO sets; the second grouping number parameter is the number of RO sets; the first grouping number parameter of PO sets and the second grouping number parameter of RO sets have a first association relationship.

52. The network device of claim 51, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: sending a PO set size parameter to the UE; the PO set size parameter is a number of POs mapped to each set in each round of grouping, each round of grouping including one or more mappings.

53. The network device of claim 51, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: sending a RO group size parameter and a minimum RO grouping granularity parameter to the UE; the RO group size parameter is used to indicate a length of a RO group, the length of the RO group being the RO group length parameter times the minimum RO grouping granularity parameter.

54. The network device of claim 51, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: sending a RO switch indication to the UE.

55. The network device of claim 54, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: sending a RO grouping indication to the UE; the RO grouping indication is used to indicate a grouping manner of ROs after RO switching is completed.

56. The network device of claim 51, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: sending a mapping relationship shift parameter to the UE; the mapping relationship shift parameter is used to indicate the first association relationship.

57. A device for determining a set of random access occasions, comprising: a target PO set determination module configured to determine a target PO set; the target PO set being one of M PO sets; a target RO set determination module configured to determine a target RO set based on the target PO set and a first association relationship; the target RO set being one of N RO sets, the M PO sets and the N RO sets having the first association relationship.

58. A device for determining a set of random access occasions, comprising: a first sending module configured to send a first grouping number parameter and a second grouping number parameter to the UE; the first grouping number parameter being a number of PO sets; the second grouping number parameter being a number of RO sets; the first grouping number parameter of PO sets and the second grouping number parameter of RO sets having a first association relationship.

59. A non-transitory readable storage medium storing a computer program, the computer program being used to cause a processor to perform the method for determining a set of random access occasions according to any one of claims 1 to 22.

60. A non-transitory readable storage medium storing a computer program, the computer program being used to cause a processor to perform the method for determining a set of random access occasions according to any one of claims 23 to 28.

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