Communication method, terminal, network device, and storage medium

Abstract

The present disclosure relates to a communication method, a terminal, a network device and a storage medium. The method comprises: receiving a first system information block (SIB) sent by a network device, wherein the first SIB comprises configuration information for one or more network energy saving (NES) cells, and wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used for the terminal to request a SIB1 and / or request SI when cell selection is performed on the NES cell. In the method of the present disclosure, the terminal in the connected state can obtain the configuration information through the first SIB, and when cell selection is performed on the NES cell, the terminal can ensure that there is valid configuration information, so as to facilitate timely request of the SI or the SIB1 according to the pre-received configuration information.

Description

Communication method, terminal, network device and storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and in particular to a communication method, a terminal, a network device and a storage medium. BACKGROUND

[0002] In New Radio (NR), in order to achieve network energy saving (NES), system information (SI) can be sent based on a request, such as sending SI based on a terminal request, so as to reduce the amount of system information broadcast by default by a base station.

[0003] SUMMARY

[0004] Before the terminal requests system information of an NES cell, such as before requesting on-demand System Information Block (on-demand SIB) 1, it is necessary to ensure that there is a valid configuration.

[0005] Embodiments of the present disclosure provide a communication method, a terminal, a network device and a storage medium.

[0006] In a first aspect, embodiments of the present disclosure provide a communication method performed by a terminal, the method comprising:

[0007] receiving a first System Information Block (SIB) sent by a network device, the first SIB comprising configuration information for one or more Network Energy Saving (NES) cells, wherein the terminal is in a Radio Resource Control (RRC) connected state, and the configuration information is used by the terminal to request SIB1 and / or request SI when cell selection is to the NES cell.

[0008] In a second aspect, embodiments of the present disclosure provide a communication method performed by a network device, the method comprising:

[0009] sending, to a terminal, a first System Information Block (SIB), the first SIB comprising configuration information for one or more Network Energy Saving (NES) cells, wherein the terminal is in a Radio Resource Control (RRC) connected state, and the configuration information is used by the terminal to request SIB1 and / or request SI when cell selection is to the NES cell.

[0010] In a third aspect, embodiments of the present disclosure provide a terminal comprising:

[0011] The transceiver module is configured to receive a first system information block (SIB) transmitted by the network device, the first SIB comprising configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request SIB1 and / or request SI when the terminal selects a cell to the NES cell.

[0012] In a fourth aspect, an embodiment of the present disclosure provides a network device, comprising:

[0013] The transceiver module is configured to transmit a first system information block (SIB) to a terminal, the first SIB comprising configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request SIB1 and / or request SI when the terminal selects a cell to the NES cell.

[0014] In a fifth aspect, an embodiment of the present disclosure provides a terminal, comprising:

[0015] one or more processors;

[0016] The terminal is configured to implement the method of the first aspect.

[0017] In a sixth aspect, an embodiment of the present disclosure provides a network device, comprising:

[0018] one or more processors;

[0019] The network device is configured to implement the method of the second aspect.

[0020] In a seventh aspect, an embodiment of the present disclosure provides a communication system, comprising a terminal and a network device, wherein:

[0021] The terminal is configured to implement the method of the first aspect;

[0022] The network device is configured to implement the method of the second aspect.

[0023] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, the storage medium storing instructions, wherein:

[0024] When the instructions run on a communication device, the communication device is caused to perform the method of the first aspect or the second aspect.

[0025] In a ninth aspect, an embodiment of the present disclosure provides a program product, wherein:

[0026] When the program product is executed by a communication device, the communication device is caused to perform the method of the first aspect or the second aspect.

[0027] In the embodiments of the present disclosure, the terminal in the connected state can obtain configuration information through the first SIB, and when the cell selection is to the NES cell, the terminal can ensure that there is valid configuration information, so as to facilitate timely request of SI or SIB1 according to the pre-received configuration information. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0029] FIG. 1a is an exemplary schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure;

[0030] FIG. 1b is a schematic diagram of system information according to an embodiment of the present disclosure;

[0031] FIG. 1c to FIG. 1e are multiplexing patterns of SSB and RMSI control resource set according to an embodiment of the present disclosure;

[0032] FIG. 1f is a schematic diagram of SI request according to an embodiment of the present disclosure;

[0033] FIG. 2a is an exemplary interaction schematic diagram of a method according to an embodiment of the present disclosure;

[0034] FIG. 2b to FIG. 2g are schematic diagrams of SSB and RO association according to an embodiment of the present disclosure;

[0035] FIG. 3a to FIG. 3b are an exemplary flowchart of a method according to an embodiment of the present disclosure;

[0036] FIG. 4a to FIG. 4b are an exemplary flowchart of a method according to an embodiment of the present disclosure;

[0037] FIG. 5a is a structural schematic diagram of a device according to an embodiment of the present disclosure;

[0038] FIG. 5b is a structural schematic diagram of a device according to an embodiment of the present disclosure;

[0039] FIG. 6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0040] FIG. 6b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] The embodiments of the present disclosure provide a communication method, a terminal, a network device and a storage medium.

[0042] In a first aspect, the embodiments of the present disclosure provide a communication method, performed by a terminal, comprising:

[0043] receive a first system information block (SIB) sent by the network device, the first SIB including configuration information for one or more network energy saving (NES) cells, wherein the terminal is in an RRC connected state, and the configuration information is used by the terminal to request a SIB1 and / or request SI when the terminal selects a cell to an NES cell.

[0044] In the above embodiments, the terminal in the connected state can obtain the configuration information through the first SIB, and when the terminal selects a cell to an NES cell, the terminal can ensure that there is valid configuration information, so as to facilitate timely request of SI or SIB1 according to the pre-received configuration information.

[0045] With reference to the embodiments of the first aspect, in some embodiments, the method further includes:

[0046] receiving RRC dedicated signaling sent by the network device, the RRC dedicated signaling being used to transmit a new first SIB when the configuration information is changed; and wherein the active bandwidth part (BWP) of the terminal has no common search space.

[0047] With reference to the embodiments of the first aspect, in some embodiments, the method further includes:

[0048] receiving paging downlink control information (DCI) sent by the network device, the paging DCI being used to indicate that the configuration information is changed;

[0049] receiving a new first SIB sent by the network device in the common search space;

[0050] and wherein the active BWP of the terminal has the common search space.

[0051] With reference to the embodiments of the first aspect, in some embodiments, the configuration information includes at least one of the following:

[0052] indication information;

[0053] a dedicated random access channel occasion (RO);

[0054] and wherein the indication information is used to indicate whether the request for SI is based on MSG1 or MSG3, or the indication information is used to indicate that the dedicated RO is used to request a SIB1 and / or request SI.

[0055] In some embodiments of the first aspect, when the configuration information comprises the dedicated RO and does not comprise the indication information, the dedicated RO is used by default for requesting the SIB1 and requesting the SI.

[0056] In some embodiments of the first aspect, the indication information is located in an information element (IE) of system information request configuration (SI-RequestConfig) or in an IE corresponding to the dedicated RO.

[0057] In some embodiments of the first aspect, the dedicated RO is used for requesting the SIB1 or for requesting the SIB1 and requesting the SI, wherein the dedicated RO is associated with a synchronization signal block (SSB).

[0058] In some embodiments of the first aspect, the configuration information comprises at least one of the following:

[0059] a random access association period;

[0060] a SIB1 request resource, wherein the SIB1 request resource is used for indicating a preamble for requesting the SIB1 or a random access occasion index and a preamble for requesting the SIB1.

[0061] In some embodiments of the first aspect, there is one dedicated RO for requesting the SIB1 in each random access association period.

[0062] In some embodiments of the first aspect, when the SIB1 request resource comprises an index of one preamble, in the dedicated RO, an RO with a first value of the random access occasion index is used for requesting the SIB1, and an RO corresponding to other values of the random access occasion index is used for requesting the SI.

[0063] In some embodiments of the first aspect, the method further comprises:

[0064] when the cell selection is to a NES cell, sending, to the network device, a MSG1 comprising a preamble on an RO corresponding to a first value in each random access association period, the MSG1 being used for requesting the SIB1; or

[0065] sending, to the network device, a MSG1 comprising a preamble on an RO corresponding to other values in each random access association period, the MSG1 being used for requesting the SI.

[0066] In some embodiments of the first aspect, the method further comprises:

[0067] In some embodiments, the SIB1 request resource includes an index of a preamble, and the preamble is dedicated to requesting the SIB1. In some embodiments, the MSG1 includes the preamble, and the MSG1 is used to request the SIB1.

[0068] In some embodiments of the first aspect, the method further comprises:

[0069] receiving the MSG2 sent by the network device, wherein the MSG2 is sent in N directions, N is a number of synchronization signal blocks (SSBs) associated with the dedicated RO, and N is an integer.

[0070] In some embodiments of the first aspect, the SIB1 request resource includes a preamble start index, and the preamble start index is used to determine N indices of consecutive preambles, N is a number of synchronization signal blocks (SSBs) associated with the dedicated RO, and N is an integer.

[0071] In some embodiments of the first aspect, the first parameter in the configuration information for indicating the number of SSBs corresponding to the RO satisfies one of the following conditions:

[0072] the first parameter < 1;

[0073] the first parameter > 1 and only one preamble for requesting the SIB1 is configured;

[0074] the first parameter > 1 and N preambles for requesting the SIB1 are configured, N is an integer;

[0075] the first parameter > 1 and the configuration information includes N random access association periods, wherein the N random access association periods correspond to the N SSBs one by one.

[0076] In a second aspect, the embodiments of the present disclosure provide a communication method, executed by a network device, comprising:

[0077] sending, to a terminal, a first system information block (SIB), the first SIB including configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used for the terminal to request a SIB1 and / or request a SI when the terminal selects a cell to the NES cell.

[0078] In some embodiments of the second aspect, the method further comprises:

[0079] sending, to the terminal, RRC dedicated signaling, the RRC dedicated signaling being used to transmit a new first SIB when the configuration information changes, and there is no common search space on an active bandwidth part (BWP) of the terminal.

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

[0081] transmit a paging downlink control information (DCI) to the terminal, the paging DCI being used to indicate that the configuration information is changed;

[0082] transmit a new first SIB in a common search space;

[0083] wherein the terminal has a common search space on an active BWP.

[0084] In some embodiments of the second aspect, the configuration information comprises at least one of:

[0085] indication information;

[0086] a dedicated random access occasion (RO);

[0087] wherein the indication information is used to indicate whether the requested SI is based on MSG1 or MSG3, or the indication information is used to indicate that the dedicated RO is used for requesting SIB1 and / or requesting SI.

[0088] In some embodiments of the second aspect, when the configuration information comprises the dedicated RO and does not comprise the indication information, the dedicated RO is used by default for requesting SIB1 and requesting SI.

[0089] In some embodiments of the second aspect, the indication information is located in an information element (IE) of a system information request configuration or in an IE corresponding to the dedicated RO.

[0090] In some embodiments of the second aspect, the dedicated RO is used for requesting SIB1 or for requesting SIB1 and requesting SI, wherein the dedicated RO is associated with a synchronization signal block (SSB).

[0091] In some embodiments of the second aspect, the configuration information comprises at least one of:

[0092] a random access association period;

[0093] SIB1 request resources, wherein the SIB1 request resources are used to indicate a preamble for requesting SIB1 or a preamble and a random access occasion index for requesting SIB1.

[0094] In some embodiments of the second aspect, there is one dedicated RO for requesting SIB1 in each random access association period.

[0095] In some embodiments of the second aspect, when the SIB1 request resources comprise an index of one preamble, in the dedicated RO, an RO with a first value of the random access occasion index is used for requesting SIB1, and an RO corresponding to other values of the random access occasion index is used for requesting SI.

[0096] In combination with the embodiments of the second aspect, in some embodiments, the method further includes:

[0097] In the case of cell selection to the NES cell, sending MSG1 including a preamble to the network device on the RO corresponding to the first value in each random access association period, the MSG1 being used to request SIB1; or,

[0098] Sending MSG1 including a preamble to the network device on the RO corresponding to other values in each random access association period, the MSG1 being used to request SI.

[0099] In combination with the embodiments of the second aspect, in some embodiments, the method further includes:

[0100] In the case of the SIB1 request resource including an index of a preamble and the preamble being dedicated to requesting SIB1, sending MSG1 including the preamble to the network device on any random access association period, the MSG1 being used to request SIB1.

[0101] In combination with the embodiments of the second aspect, in some embodiments, the method further includes:

[0102] Receiving MSG2 sent by the network device, wherein the MSG2 is sent in N directions, N being the number of synchronization signal blocks (SSBs) associated with the dedicated RO, N being an integer.

[0103] In combination with the embodiments of the second aspect, in some embodiments, the SIB1 request resource includes a preamble start index, the preamble start index being used to determine N indices of consecutive preambles, N being the number of synchronization signal blocks (SSBs) associated with the dedicated RO, N being an integer.

[0104] In combination with the embodiments of the second aspect, in some embodiments, the first parameter in the configuration information used to indicate the number of SSBs corresponding to the RO satisfies one of the following:

[0105] The first parameter < 1;

[0106] The first parameter > 1 and only one preamble for requesting SIB1 is configured;

[0107] The first parameter > 1 and N preambles for requesting SIB1 are configured, N being an integer;

[0108] The first parameter > 1 and the configuration information includes N random access association periods, wherein the N random access association periods correspond one-to-one to the indices of the N SSBs.

[0109] In a third aspect, the embodiments of the present disclosure provide a terminal, including:

[0110] The transceiver module is configured to receive a first system information block (SIB) transmitted by the network device, the first SIB comprising configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request SIB1 and / or SI when the terminal selects a cell to the NES cell.

[0111] In a fourth aspect, an embodiment of the present disclosure provides a network device, comprising:

[0112] The transceiver module is configured to transmit a first system information block (SIB) to a terminal, the first SIB comprising configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request SIB1 and / or SI when the terminal selects a cell to the NES cell.

[0113] In a fifth aspect, an embodiment of the present disclosure provides a terminal, comprising:

[0114] one or more processors;

[0115] The terminal is configured to implement the method of the first aspect.

[0116] In a sixth aspect, an embodiment of the present disclosure provides a network device, comprising:

[0117] one or more processors;

[0118] The network device is configured to implement the method of the second aspect.

[0119] In a seventh aspect, an embodiment of the present disclosure provides a communication system, comprising a terminal and a network device, wherein:

[0120] The terminal is configured to implement the method of the first aspect;

[0121] The network device is configured to implement the method of the second aspect.

[0122] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, the storage medium storing instructions, wherein:

[0123] When the instructions run on a communication device, the communication device is caused to perform the method of the first aspect or the second aspect.

[0124] In a ninth aspect, an embodiment of the present disclosure provides a program product, wherein:

[0125] When the program product is executed by a communication device, the communication device is caused to perform the method of the first aspect or the second aspect.

[0126] In a tenth aspect, the embodiments of the present disclosure provide a computer program which, when running on a computer, causes the computer to perform the method described in the optional implementation manners of the first aspect and the second aspect.

[0127] In an eleventh aspect, the embodiments of the present disclosure provide a chip or chip system. The chip or chip system comprises processing circuitry configured to perform the method described in the above first aspect and the second aspect.

[0128] It can be understood that the terminal, the network device, the communication system, the storage medium, the program product, the computer program, the chip or the chip system are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be described here.

[0129] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, some or all steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments.

[0130] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0131] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and not as a limitation on the present disclosure.

[0132] In the embodiments of the present disclosure, unless otherwise specified and logically contradictory, the elements expressed in singular form, such as "one", "a", "the", "above", "said", "preceding", "this" and the like, can represent "one and only one", or "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, or can be understood as plural expression.

[0133] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0134] In some embodiments, the terms "at least one of," "one or more of," "a plurality of," "multiple," and the like can be used interchangeably.

[0135] In some embodiments, the recitations "at least one of A, B," "A and / or B," "in one case A, in another case B," "in response to a case A, in response to a case B," and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selectively executed (A and B are selectively executed); in some embodiments, A and B (A and B are executed). When there are more branches such as A, B, C, and the like, the above is similar.

[0136] In some embodiments, the recitations "A or B" and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selectively executed (A and B are selectively executed). When there are more branches such as A, B, C, and the like, the above is similar.

[0137] The prefix words "first", "second", and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute a limitation on the position, order, priority, quantity, or content of the description objects. The description of the description objects should refer to the description in the context of the claims or embodiments, and should not constitute an additional limitation because of the use of the prefix words. For example, the description objects are "fields", and the ordinal words before "fields" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description objects are "levels", and the ordinal words before "levels" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description objects is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "devices" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description objects are "devices", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different; for another example, the description objects are "information", and "first information" and "second information" can be the same information or different information, and the content thereof can be the same or different.

[0138] In some embodiments, "comprising", "including", "to indicate", "carrying", can be interpreted as directly carrying A, or indirectly indicating A.

[0139] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0140] In some embodiments, the terms "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", "above" and the like can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0141] In some embodiments, the apparatus and device can be interpreted as physical or virtual, and its name is not limited to the name described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and the like.

[0142] In some embodiments, "network" can be interpreted as an apparatus included in the network, such as an access network device, a core network device, and the like.

[0143] In some embodiments, an “access network device (AN device)” can also be referred to as a “radio access network device (RAN device),” a “base station (BS),” a “radio base station,” a “fixed station,” and in some embodiments can also be understood as a “node,” an “access point,” a “transmission point (TP),” a “reception point (RP),” a “transmission / reception point (TRP),” a “panel,” an “antenna panel,” an “antenna array,” a “cell,” a “macro cell,” a “small cell,” a “femto cell,” a “pico cell,” a “sector,” a “cell group,” a “serving cell,” a “carrier,” a “component carrier,” a “bandwidth part (BWP),” and the like.

[0144] In some embodiments, a "terminal" or "terminal device" can be referred to as a "user equipment" (UE), a "user terminal," a "mobile station" (MS), a "mobile terminal" (MT), a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, and / or the like.

[0145] In some embodiments, data, information and / or the like can be obtained in compliance with laws and regulations of a country where the data, information and / or the like is obtained.

[0146] In some embodiments, data, information and / or the like can be obtained after obtaining consent of a user.

[0147] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and a combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0148] FIG. 1a is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure.

[0149] As shown in FIG. 1a, the communication system 100 includes a terminal 101 and a network device 102.

[0150] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-capable automobile, a smart automobile, a tablet (Pad), a wireless transceiver-equipped computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and the like, but is not limited thereto.

[0151] In some embodiments, the network device 102 can include at least one of an access network device and a core network device.

[0152] In some embodiments, the access network device is at least one of a node or a device that accesses a terminal to a wireless network, for example, and can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a wireless fidelity (WiFi) system, and the like, but is not limited thereto.

[0153] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at this time, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0154] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, with part of the protocol layer functions being controlled by the CU, and the remaining part or all of the protocol layer functions being distributed in the DU and controlled by the CU. However, the present disclosure is not limited thereto.

[0155] In some embodiments, the core network device can be one device including one or more network elements, or can be multiple devices or device groups including all or part of one or more network elements. The network element can be virtual or physical. The core network includes at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next-generation core (NGC), for example. Alternatively, the core network device refers to a network element with specific functions, such as an access management function (AMF) and a service management function (SMF).

[0156] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those skilled in the art can know that, as the system architecture evolves and new business scenarios appear, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0157] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1a or part of the subject, but are not limited thereto.

[0158] The subjects shown in FIG. 1a are examples. The communication system can include all or part of the subjects in FIG. 1a, or other subjects other than those in FIG. 1a. The number and form of each subject is arbitrary. The connection relationship between each subject is an example. Each subject can be connected or not connected. The connection can be in any manner, can be direct connection or indirect connection, and can be wired connection or wireless connection.

[0159] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication processing methods, next-generation system expanded based on them, and the like. In addition, a plurality of systems can be applied in combination (for example, combination of LTE or LTE-A and 5G, and the like).

[0160] 5G can meet the communication requirements of users for rate, delay, high mobility, energy efficiency, and the diversity and complexity of services in future life. The main application scenarios of 5G include enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications (URLLC), and massive machine type communications (mMTC). Among them, eMBB aims to provide users with multimedia content, services and data, and its demand is growing rapidly; eMBB can be deployed in different scenarios, such as indoor, urban, rural, etc., and the difference in capacity and demand is relatively large, which needs to be analyzed in detail combined with the specific deployment scenario. The typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), traffic safety assurance, etc. The typical characteristics of mMTC include high connection density, small data volume, delay-insensitive services, low-cost modules, and long service life, etc.

[0161] The energy consumption of a 5G base station is four times that of an LTE base station, so network energy saving is an important means to reduce the cost of operating a 5G system.

[0162] In Release 16 (R16), a wake-up signal (WUS) is introduced to achieve energy saving for RRC_CONNECTED terminals. The duration of sending WUS is defined before the offset of the Connected DRX (C-DRX) on duration of the terminal in the connected state, and WUS, i.e., Downlink Control Information (DCI) 2-6, is sent during the duration of sending WUS, which is scrambled by Power Saving RNTI (PS-RNTI) and used to indicate whether the terminal wakes up to monitor PDCCH during the next C-DRX on duration.

[0163] In R17, paging WUS is introduced to enable power saving for RRC IDLE / INACTIVE terminals. Paging WUS is transmitted at some time before the paging occasion (PO), and paging early indication (PEI) is used to indicate whether the terminal should monitor the PO for paging scheduling information. PEI is DCI 2-7 scrambled by PEI-RNTI.

[0164] In R18, to reduce network energy consumption, the network can enter the network energy saving mode (NES mode), and the cell is periodically discontinuous transmission (cell DTX) and / or discontinuous reception (cell DRX) at certain intervals. However, in cell DTX or cell DRX, master information block (MIB), system information block (SIB), paging, and RACH can be transmitted and received. Several NES functions include: SSB-less SCell, cell DTX / DRX, antenna port adaptation, and PDSCH transmission power adaptation.

[0165] For cell DTX / DRX, the network side configures the cell DTX / DRX working pattern through RRC dedicated signaling, i.e., configures a period, offset, and on duration length. During the on duration, the cell is in an active state and can receive or transmit data; during the other time, it is in an inactive state, and the network side does not perform data reception or transmission in principle, but special cases such as paging, SSB, MIB, SIB, or RACH procedures are not affected and normal reception or transmission is performed.

[0166] Among them, DCI 2-9 is a group common DCI, which is used to inform the terminal about the activation and deactivation of cell DTX or DRX of the cell. In addition, cell switch off is also included in NES. Because the terminal supporting NES cannot work or cannot meet the high performance requirements of the terminal due to the activation of cell DTX / DRX or cell switch off, the terminal needs to be switched to other cells at this time. Therefore, the NES CHO (Conditional HandOver) for NES is introduced in NES, that is, NES CHO, and the switching can also be triggered based on the 1-bit instruction of DCI, that is, when the NES CHO switching condition is met, the DCI switching instruction from the network side is received, and the switching can be performed. The DCI can be DCI format 2-9, that is, the DCI of cell DTX / DRX activation and deactivation is reused.

[0167] The contents broadcasted by the NR system include MIB, RMSI (i.e. SIB1), other SIB (OSI). As shown in FIG. 1b, the configuration parameters related to cell selection, cell access, OSI scheduling, cell common configuration, access control and the configuration information related to cell capability are configured in SIB1. The CORESET of SIB1 is configured in MIB. The multiplexing relationship between RMSI CORESET and SS / PBCH block (i.e. SSB) resource includes three patterns shown in FIG. 1c to FIG. 1e, wherein pattern 1 is time division multiplexing (TDM), pattern 2 is TDM + frequency division multiplexing (FDM), and pattern 3 is FDM. The terminal obtains the resource location of PDCCH according to the RMSI CORESET information in the physical broadcast channel (PBCH), so as to further receive RMSI.

[0168] In the terminal-based request system information approach, the amount of system information that the base station broadcasts by default can be reduced, saving radio resources. For example, other SIBs than MIB and SIB1 can be on-demand, i.e. the base station broadcasts them only after receiving a SI request from a terminal. Among them, SIB1 contains an indication of whether each SI is being broadcast, and the terminal 101 can know which SIBs need to be requested by reading SIB1.

[0169] To distinguish, the request for system information is divided into: request or on-demand SI (on-demand SI), and, request or on-demand SIB1 (on-demand SIB1), where the SI in on-demand SI refers to other SI than SIB1. Among them, the way of SI request includes MSG1-based request based on random access channel (RACH) process (Message1, MSG1) and MSG3-based request. Among them, MSG1-based request is based on reserved Preamble and / or RACH resource (resource). MSG3-based request does not require reserved RACH preamble, and can be defined as RRCSystemInfoRequest message (MSG3). The terminal knows whether to use MSG1-based or MSG3-based request by reading system information, for example, if the base station provides configuration information of SI request in system information (SIB1), i.e. si-RequestConfig, the terminal uses MSG1-based SI request, otherwise MSG3-based SI request. The terminal can send request information (SystemInformationRequest) to request SI, and obtain the message (SystemInformation messages) carrying system information, as shown in FIG. 1f.

[0170] Among them, the terminal receives SI in the current modification period after receiving the SI request confirmation, and the terminal receives SI until the end of the modification period or until receiving the SI. If the RACH fails during the SI request process, the behavior of the terminal thereafter depends on the UE implementation. It is worth noting that in R15, SI request of RRC_CONNECTED state UE is not supported.

[0171] In Release 19 (R19), pre-configured information is required for a terminal to initiate a request for SIB1. One approach is that, for idle terminals, the configuration information for requesting SIB1 from neighboring cells can be obtained. For example, neighboring cells of an on-demand SIB1 cell, such as cell A, may configure NES cell information, for instance, through system broadcast.

[0172] For terminals in the RRC_CONNECTED state, reading system broadcast information such as SIB2, SIB3, SIB4, or SIB5 is unnecessary. As long as a valid MIB and SIB1 version exist, normal service can be enjoyed in the cell under RRC_CONNECTED. If updated configuration information is carried in SIB2, 3, 4, or 5, the terminal will not be aware of it. Furthermore, when a terminal experiences a Radio Link Failure (RLF), Handover Failure (HOF), dataInactivityTimer timeout, or leaves the RRC_CONNECTED state, it will perform a cell selection process. If an on-demand SIB1 cell is selected, valid configuration information must exist. How to ensure the existence of valid configuration information is a question that needs to be clearly defined.

[0173] Figure 2a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2a, the present disclosure relates to a communication method, which includes:

[0174] In step S2101, network device 102 sends the first SIB to terminal 101.

[0175] In some embodiments, the terminal 101 may be in an RRC connected state (RRC_CONNECTED) during this step.

[0176] In some embodiments, network device 102 may be the network device 102 corresponding to the serving cell of terminal 101.

[0177] In some embodiments, the first SIB may be a newly defined SIB, such as SIB-X. Here, SIB-X may be different from SIB2, SIB3, SIB4 or SIB5, and the terminal 101 in the RRC connection state will still receive SIB-X.

[0178] In some embodiments, the first SIB, such as SIB-X, includes configuration information for one or more network energy-saving NES cells. The configuration information is used by the terminal to request SIB1 and / or request SIB when selecting an NES cell.

[0179] The request SIB1 can refer to that the terminal 101 initiates a request for SIB1 according to the communication requirement, which can be referred to as on-demand SIB1. The request SI can refer to that the terminal 101 initiates a request for SI according to the communication requirement, which can be referred to as on-demand SI. In the two cases, the network device 102 re-sends the SIB1 or SI based on the request of the terminal 101, so as to achieve energy saving.

[0180] Optionally, the NES cell refers to a cell that can perform network energy saving, such as a cell that sends system information based on a terminal request. For example, the NES cell includes: an on-demand SIB1 cell, and / or an on-demand SI cell.

[0181] Optionally, the configuration information can be wake-up signal (WUS) configuration information or UL WUS configuration information, which contains relevant resources for random access of the terminal 101.

[0182] Optionally, the SIB-X can be configured with configuration information of one or more on-demand SIB1 cells. For example, if the serving cell (or current cell, cell) is an on-demand SIB1 cell, the SIB-X can be configured with the configuration information corresponding to the serving cell. For another example, if the neighbor cell of the serving cell is an on-demand SIB1 cell, the SIB-X can be configured with the configuration information corresponding to the neighbor cell; if there are multiple neighbor cells, the SIB-X can be configured with the configuration information corresponding to multiple neighbor cells. For another example, if the serving cell and the neighbor cell are both on-demand SIB1 cells, the SIB-X can be configured with the configuration information corresponding to the neighbor cell and the serving cell.

[0183] Optionally, in the embodiments of the present disclosure, the on-demand SI refers to other SI in addition to the on-demand SIB1. In combination with the foregoing embodiment description, the on-demand SI can be based on MSG1 or based on MSG3. The on-demand SI based on MSG1 is based on the RACH resource configured by the network side.

[0184] Optionally, the on-demand SIB1 refers to the on-demand SIB1. The on-demand SIB1 has a higher requirement for latency than the on-demand SI, and the on-demand SIB1 can be based on MSG1 to reduce the request latency.

[0185] In some embodiments, the terminal 101 can receive the above SIB-X to obtain the configuration information applicable to the NES cell.

[0186] In some embodiments, the configuration information comprises at least one of the following:

[0187] indication information;

[0188] dedicated random access occasion (RO).

[0189] In an example, the indication information is used to indicate whether the on-demand SI is MSG1-based or MSG3-based.

[0190] In another example, the indication information is used to indicate that the dedicated RO is used for on-demand SIB1, or for on-demand SI, or for both on-demand SIB1 and on-demand SI.

[0191] Optionally, the indication information can be configured in an IE of system information request configuration (SI-RequestConfig) or in an IE corresponding to the dedicated RO. In combination with the IEs of the following embodiments, the IE corresponding to the dedicated RO can be, for example, an IE (rach-OccasionsSI) of random access occasion SI in the system information request configuration.

[0192] Optionally, if the configuration information configures the dedicated RO, the dedicated RO can be used by default for both on-demand SIB1 and on-demand SI, i.e., shared by both. In this case, the indication information can not be included or configured in the configuration information.

[0193] It can be understood that in some embodiments, the MSG3-based on-demand SI can be determined to be MSG3-based through the introduced indication information.

[0194] In some embodiments, an IE of the configuration information can refer to the following:

[0195] In some embodiments, in combination with FIGS. 2b-2e, the association relationship between the synchronization signal block (Synchronization Signal Physical Broadcast Channel Block, SSB) and the RO can be known based on the above configuration IE. Among them, the number of SSBs can be indicated, such as the 8 SSBs in the above figures, which are SSB1-SSB8; the parameter prach_FDM is used to indicate the number of ROs in one time domain unit. Here, one time domain unit can be located in one PRACH configuration period (PRACH config period), and the PRACH configuration period and the random access association period (SSB / PRACH Association Period or ra-AssociationPeriod) have a mapping relationship as shown in Table 1:

[0196] Table 1

[0197] Based on this, the above configuration information can be further understood as follows:

[0198] For example, in the IE of SI request resource SI-RequestResources, the random access association period and / or the random access association period index ra-AssociationPeriodIndex can be configured. Taking FIG. 2b as an example, the random access association period = 8, which means that 8 PRACH configuration periods are included in one random access association period, and the ra-AssociationPeriodIndex = 0 means the first random access association period.

[0199] For example, in the IE of rach-OccasionsSI, the first parameter ssb-perRACH-Occasion (SSB-per-RO) can represent how many ROs correspond to one SSB. Taking FIG. 2b as an example, if the first parameter SSB-per-RO = 1 / 4, it means that one SSB (assuming that the SSB is SSB1) corresponds to 4 ROs, that is, in the time domain unit corresponding to the SSB1, 4 ROs are used for transmitting the SSB1.

[0200] For example, in the IE of SI-RequestResources, the random access occasion index ra-ssb-OccasionMaskIndex can be used to indicate the index of the RO. For example, in the example of FIG. 2b, SSB1 corresponds to 4 ROs, and the value of ra-ssb-OccasionMaskIndex can be used to indicate the 4 ROs respectively.

[0201] For example, the SI request period si-RequestPeriod in the configuration information is used to configure the period of SI request. Still taking FIG. 2b as an example, if the number of SI (SI other than SIB1) is 8 (such as SI-1 to SI-8), the si-RequestPeriod can be 2.

[0202] It is worth noting that FIG. 2c or FIG. 2e can also refer to the above description, and the difference from FIG. 2b is that the value of SSB-per-RO is different.

[0203] In some embodiments, the above-mentioned configured dedicated RO is used for on-demand request of SIB1, or is used for on-demand request of SIB1 and on-demand request of SI, wherein the dedicated RO is associated with a synchronization signal block SSB.

[0204] Optionally, the dedicated ROs above can be associated with a certain SSB, for example, in the example of FIG. 2b, the dedicated ROs are assumed to be associated with SSB1, in which case the number of dedicated ROs can be 4.

[0205] In some embodiments, the configuration information comprises at least one of:

[0206] a random access association period;

[0207] SIB1 request resources, wherein the SIB1 request resources are used to indicate: a preamble for requesting SIB1 on demand, or a preamble and a random access occasion index for requesting SIB1 on demand.

[0208] The random access association period can refer to the description of the above embodiments. For example, the random access association period can be 8. The configuration information can indicate the index of the random access association period corresponding to the random access association period index ra-AssociationPeriodIndex.

[0209] Optionally, there is one dedicated RO for requesting SIB1 on demand in each random access association period. The dedicated RO for on demand SIB1 can be determined based on network configuration or defined based on a default manner.

[0210] The preamble configured in the SIB1 request resources can be an index of a preamble, or a plurality of preambles can be determined based on the preamble index configured in the SIB1 request resources.

[0211] Optionally, the SIB1 request resources comprise a preamble start index, and the preamble start index is used to determine N index consecutive preambles, N being the number of synchronization signal blocks SSB associated with the dedicated RO. The preamble start index represents the index at which the preamble starts, and includes the consecutive N preambles.

[0212] For example, the SIB1 request resources (SIB1-RequestResources) can refer to the following IE:

[0213] The preamble start index ra-PreambleStartIndex can indicate or determine the preamble for on demand SIB1. The random access occasion index ra-ssb-OccasionMaskIndex can indicate the random access occasion index for on demand SIB1, which can be used to determine which RO requests SIB1.

[0214] Optionally, if only one preamble is configured, such as the SIB1 request resource includes an index of one preamble, the preamble can be used as a preamble dedicated to SIB1 request, and a shared RO can be used.

[0215] In some examples, when the SIB1 request resource includes an index of one preamble, in the dedicated RO, the RO with the first value of the random access occasion index is used for requesting SIB1 on demand, and the RO corresponding to the random access occasion index with other values is used for requesting SI on demand.

[0216] For example, referring to FIG. 2f, it is assumed that the associated SSB is SSB1, or in other words, the RO associated with SSB1 is a dedicated RO. In the 4 ROs corresponding to SSB1, it is assumed that the first value is 1, and the other values are 2, 3 and 4; that is, the RO with ra-ssb-OccasionMaskIndex = 1 is used to request SIB1, and the RO with ra-ssb-OccasionMaskIndex = 2, 3 and 4 is used to request SI. Examples of the first value being other numerical values can be referred to herein.

[0217] In this part of the example, the terminal 101 can request SIB1 in the manner shown in step S2103-11.

[0218] It can be understood that, in combination with the IE of the SI request resource (SI-RequestResources) and the IE of the SIB1 request resource (SIB1-RequestResources), ra-AssociationPeriodIndex and ra-ssb-OccasionMaskIndex are not suitable for on-demand SIB1. ra-ssb-OccasionMaskIndex configured for on-demand SIB1 can be used to determine the RO used to request SIB1.

[0219] In this part of the example, the configuration information can be further constrained, such as the first parameter (ssb-perRACH-Occasion or ssb-per-RO) in the configuration information < 1. For example, in the ssb-perRACH-Occasion ENUMERATED{oneEighth, oneFourth, oneHalf, one, two, four, eight, sixteen}, one of oneEighth, oneFourth and oneHalf is taken as the value.

[0220] In some embodiments, the SIB1 request resource includes an index of a preamble and the preamble is dedicated for requesting SIB1. In this embodiment, the network device configures a dedicated preamble for requesting SIB1, so that the terminal 101 can initiate a random access procedure in any random access association period. As shown in step S2103-21. This embodiment can be applied to any of the following RO resource configuration modes: Case 1: dedicated RO is configured for on-demand SIB1 only; Case 2: dedicated RO is configured for on-demand SIB1 and on-demand SI sharing; Case 3: RO is shared with other RACH procedures.

[0221] In this embodiment, the configuration information can not include ra-AssociationPeriodIndex and ra-ssb-OccasionMaskIndex. Alternatively, the SIB1 request resource in the configuration information includes ra-ssb-OccasionMaskIndex and preamble; or only preamble is configured for on-demand SIB1, and only one preamble is configured; or in combination with the description of the above embodiments, the preamble starting index is configured, and N consecutive preambles can be determined, N being the number of SSBs corresponding to one RO.

[0222] In some embodiments, the first parameter (ssb-per-RO) in the configuration information for indicating the number of SSBs corresponding to one RO satisfies one of the following:

[0223] The first parameter is less than 1;

[0224] The first parameter is greater than 1 and only one preamble for requesting SIB1 is configured;

[0225] The first parameter is greater than 1 and N preambles for requesting SIB1 are configured, N being an integer, for example, N can be greater than or equal to 1;

[0226] The first parameter is greater than 1 and the configuration information includes N random access association periods, wherein the N random access association periods correspond one-to-one to the indexes of the N SSBs.

[0227] Optionally, the above constraints of the first parameter can be applied to the scenario where a dedicated RO is configured for on-demand SIB1 and is used for on-demand SIB1 only.

[0228] For example, ssb-per-RO<=1, in combination with the cases of FIGS. 2b, 2d-2f, the RO based on the index can distinguish the RO for on-demand SIB1 and the RO for on-demand SI, and preamble resources can not be wasted.

[0229] For example, when ssb-per-RO > 1, one RO corresponds to multiple SSBs, and N preambles can be configured to further distinguish different beam directions, i.e., to further distinguish SSB indexes. If one RO corresponds to one SSB, N can be equal to 1; if one RO corresponds to multiple SSBs, N can be > 1.

[0230] For example, when ssb-per-RO > 1, if 1 preamble is configured, after the terminal 101 requests SIB1, the network device sends RAR in N SSB directions, where N is the number of SSBs corresponding to one RO, and the N SSBs are the N SSBs associated with the RO.

[0231] For example, when ssb-per-RO > 1, N random access association periods are configured, and N SSBs and N random access association periods are one-to-one corresponding in time domain order according to SSB index from small to large. As shown in FIG. 2g, ssb-per-RO = 2, and SSB1 and SSB2 correspond to one RO. In this embodiment, T of the original random access association period (such as FIG. 2e) is expanded to 2T, and different random access association periods are used to distinguish different SSBs. For example, the first, third, fifth, and seventh time domain units of the RO (associated with SSB1 and SSB2) are used to send SSB1, and the second, fourth, sixth, and eighth time domain units of the RO (associated with SSB1 and SSB2) are used to send SSB2.

[0232] In step S2102, if the configuration information changes, the network device 102 sends the updated first SIB.

[0233] In some embodiments, for a terminal in an RRC connected state, the updated first SIB can be received in time to obtain the latest configuration information, so as to ensure that the terminal always stores valid configuration information.

[0234] In a possible implementation, the step can include the following step S2102-11:

[0235] In step S2102-11, the network device 102 sends RRC dedicated signaling to the terminal 101.

[0236] In this implementation, the RRC dedicated signaling is used to transmit a new first SIB (such as new SIB-X) when the configuration information changes.

[0237] This implementation can be applied to the case where there is no common search space on the active BWP of the current terminal 101.

[0238] In this embodiment, if there is no common search space on the active BWP of the terminal 101, the network device 102 needs to provide the terminal 101 with a new SIB-X in time when the configuration information changes.

[0239] In this embodiment, the RRC dedicated signaling may be, for example, dedicatedSystemInformationDelivery, which can be used to transmit the new SIB-X.

[0240] Optionally, the following configuration IE is referred to:

[0241] This field is used to send SIB6, SIB7, SIB8, SIB19, SIB20, SIB21, SIB-X to the terminal without a common search space configured on the active BWP or the RRC_CONNECTED layer 2 UE to network (L2 U2N) Remote UE. For the RRC_CONNECTED terminal (including the L2 U2N Remote UE), this field is also used to transmit the SIBs requested on-demand.

[0242] In this embodiment, the terminal 101 can receive the RRC dedicated signaling to obtain the new SIB-X.

[0243] In another possible embodiment, the step can include the following steps S2102-21-S2102-22:

[0244] Step S2102-21, the network device 102 sends a paging DCI (paging DCI) to the terminal 101.

[0245] In this step, the paging DCI is used to indicate that the configuration information has changed. For example, the systemInfoModification in the short message in the paging DCI is set to 1.

[0246] Step S2102-22, the network device 102 sends a new first SIB (such as new SIB-X) in the common search space.

[0247] In this step, if the terminal 101 in the connected state receives the paging DCI, it can obtain the updated configuration information, such as obtaining and receiving the new SIB-X in the common search space.

[0248] This embodiment can be applied to the case that there is common search space on the active BWP of the current terminal 101.

[0249] In this embodiment, if there is common search space on the active BWP of the terminal 101, the network device 102 can instruct the terminal 101 to receive and acquire the new SIB-X by itself after receiving the paging DCI to obtain the new valid configuration information when the configuration information is changed.

[0250] In some embodiments, the terminal 101 in the RRC connected state can obtain the new SIB-X after the update based on the above two possible ways, and always keep the new valid configuration information.

[0251] Step S2103, when the terminal 101 selects the NES cell, the terminal 101 sends MSG1 to the network device 102.

[0252] In some embodiments, the MSG1 sent by the terminal 101 is used to request the SIB1 and / or SI of the NES cell.

[0253] In some embodiments, based on the configuration information in step S2101, the terminal 101 can send MSG1 on different RO resources.

[0254] In an embodiment, in combination with the corresponding example of FIG. 2f, if one preamble is configured to request SIB1 and / or request SI, the RO with the first value of the random access occasion index in the dedicated RO is used to request SIB1, and this step S2103 can include the following steps S2103-11~S2103-12:

[0255] Step S2103-11, the terminal 101 sends MSG1 containing preamble on the RO corresponding to the first value in each access association period, and the MSG1 is used to request SIB1. For example, in FIG. 2f, MSG1 is sent on the RO with ra-ssb-OccasionMaskIndex=1 to request SIB1.

[0256] Step S2103-12, the terminal 101 sends MSG1 containing preamble on the RO corresponding to other values in each access association period, and the MSG1 is used to request SI. For example, in FIG. 2f, MSG1 is sent on the RO with ra-ssb-OccasionMaskIndex=2, 3 and 4 to request SI.

[0257] In this embodiment, based on the above steps S2103-11 and S2103-12, even if the terminal uses the same preamble to request SIB1 and SI, the network side can still distinguish the request of SIB1 and the request of SI based on the index of RO, so that for the SIB1 request with higher delay requirement, the feedback can be as soon as possible to minimize the delay of terminal request.

[0258] In another embodiment, if one preamble is configured and the preamble is dedicated to request SIB1, the step S2103 can include the following step S2103-21:

[0259] Step S2103-21, the terminal 101 sends MSG1 including the preamble on any random access association period, and the MSG1 is used to request SIB1.

[0260] In this embodiment, the terminal 101 uses the dedicated preamble to request SIB1, and the network side can know the request for SIB1 as soon as possible, so as to feedback SIB1 as soon as possible and reduce the delay of SIB1 request.

[0261] In some embodiments, the network device 102 receives MSG1 in the corresponding time-frequency position.

[0262] Step S2104, the network device 102 sends MSG2.

[0263] In some embodiments, in combination with the description of step S2103, the network device 102 can receive the request of terminal 101 for SIB1 or SI in different dedicated ROs.

[0264] For example, in the example of FIG. 2f, ssb-per-RO < 1, the MSG1 received on the RO of ra-ssb-OccasionMaskIndex = 1 is used to request SIB1, and the MSG1 received on the RO of ra-ssb-OccasionMaskIndex = 2, 3 and 4 is used to request SI. The network device 102 can preferentially send MSG2 on the RO of ra-ssb-OccasionMaskIndex = 1 to feedback SIB1 for the terminal 101, so as to reduce the delay of SIB1 request.

[0265] For another example, ssb-per-RO > 1, if one preamble is configured and the preamble is dedicated for requesting SIB1, in the method, the network device 102 can obtain the request for SIB1 by receiving MSG1 containing the preamble. At this time, the network device 102 can not confirm the SSB index or the direction, and sends MSG2 in N directions. For example, one RO corresponds to two SSBs, SSB1 and SSB2, and the network device 102 can send MSG2 in the two directions of SSB1 and SSB2.

[0266] Optionally, the MSG2 can be a random access response RAR.

[0267] For another example, ssb-per-RO > 1, if N preambles are configured, the N preambles correspond to the N SSB directions associated with the RO one by one. For example, one RO corresponds to two SSBs (SSB1 and SSB2), and two preambles are configured to correspond to the two SSBs one by one. Then, the network device 102 can determine the direction, i.e., the SSB index, based on the preamble contained in the received MSG1.

[0268] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms of “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, and the like can be replaced with each other.

[0269] In some embodiments, “acquire”, “obtain”, “get”, “receive”, “transmit”, “bidirectional transmission”, “send and / or receive”, and the like can be replaced with each other, and can be interpreted as receiving from other subjects, obtaining from a protocol, obtaining from a higher layer, obtaining by self-processing, and the like.

[0270] In some embodiments, the terms of “send”, “transmit”, “report”, “issue”, “transmit”, “bidirectional transmission”, “send and / or receive”, and the like can be replaced with each other.

[0271] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based", and the like can be replaced with each other.

[0272] In some embodiments, the terms "moment", "time point", "time", "time position", and the like can be replaced with each other, and the terms "time length", "time period", "time window", "window", "time", and the like can be replaced with each other.

[0273] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency", and the like can be replaced with each other.

[0274] In some embodiments, the terms "certain", "preseted", "preset", "set", "indicated", "certain", "arbitrary", "first", and the like can be replaced with each other, and "certain A", "preset A", "preset A", "set A", "indicated A", "certain A", "arbitrary A", "first A" can be interpreted as A specified in advance in a protocol or the like, A obtained by setting, configuration, or indication, or A specific, certain, arbitrary, or first, but not limited thereto.

[0275] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but not limited thereto.

[0276] In some embodiments, "not expected to receive" can be interpreted as not receiving in time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data or the like after receiving the data or the like; "not expected to send" can be interpreted as not sending, or as sending but not expecting the receiving party to respond to the content of the sending.

[0277] The method related to the embodiments of the present disclosure can include at least one of steps S2101-S2104.

[0278] In some embodiments, the method includes step S2101, or the method includes step S2102.

[0279] In some embodiments, the method comprises steps S2101, S2103 and S2104; or the method comprises steps S2102, S2103 and S2104.

[0280] In some embodiments, other optional implementations described before or after the corresponding description of FIG. 2a can be referred to.

[0281] In the embodiments of the present disclosure, in the scenario of performing cell selection by the terminal, if the NES is selected, the on-demand SIB1 can also be initiated. For example, through the new SIB, and by agreeing on the new update process, the connection state acquisition or the network side configuration is required to ensure the validity of the UL WUS configuration parameter. In addition, based on the configuration information and the related constraints in the configuration, the latency of the on-demand SIB1 request process can be reduced. For example, it is ensured that there is an RO for the on-demand SIB1 in each random access association period.

[0282] FIG. 3a is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in FIG. 3a, the present embodiment of the present disclosure relates to a communication method, which is performed by a terminal 101, and the above method comprises:

[0283] Step S3101, receiving a first SIB.

[0284] In some embodiments, the implementation of step S3101 can refer to the implementation of step S2101 in FIG. 2a, and details are not repeated here.

[0285] Step S3102, receiving an updated first SIB.

[0286] In some embodiments, the implementation of step S3102 can refer to the implementation of step S2102 in FIG. 2a, and details are not repeated here.

[0287] Step S3103, when the cell selection is to the NES cell, sending MSG1.

[0288] In some embodiments, the implementation of step S3103 can refer to the implementation of step S2103 in FIG. 2a, and details are not repeated here.

[0289] Step S3104, receiving MSG2.

[0290] In some embodiments, the implementation of step S3104 can refer to the implementation of step S2104 in FIG. 2a, and details are not repeated here.

[0291] The method related to the embodiments of the present disclosure can comprise at least one of steps S3101 to S3104.

[0292] In some embodiments, other optional implementations can be referred to before or after the description corresponding to FIG. 3a.

[0293] FIG. 3b is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in FIG. 3b, the embodiment of the present disclosure relates to a communication method, which is performed by the terminal 101, and the above method comprises the following steps:

[0294] In step S3201, a first SIB is received.

[0295] In some embodiments, the implementation of step S3201 can refer to the implementation of step S2101 in FIG. 2a, and details are not described herein.

[0296] In some embodiments, other optional implementations can be referred to before or after the description corresponding to FIG. 3b.

[0297] FIG. 4a is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in FIG. 4a, the embodiment of the present disclosure relates to a communication method, which is performed by the network device 102, and the above method comprises the following steps:

[0298] In step S4101, a first SIB is transmitted.

[0299] In some embodiments, the implementation of step S4101 can refer to the implementation of step S2101 in FIG. 2a, and details are not described herein.

[0300] In step S4102, an updated first SIB is transmitted.

[0301] In some embodiments, the implementation of step S4102 can refer to the implementation of step S2102 in FIG. 2a, and details are not described herein.

[0302] In step S4103, MSG1 is received.

[0303] In some embodiments, the implementation of step S4103 can refer to the implementation of step S2103 in FIG. 2a, and details are not described herein.

[0304] In step S4104, MSG2 is transmitted.

[0305] In some embodiments, the implementation of step S4104 can refer to the implementation of step S2104 in FIG. 2a, and details are not described herein.

[0306] The method related to the embodiment of the present disclosure can comprise at least one of steps S4101-S4104.

[0307] In some embodiments, other optional implementations described before or after the description corresponding to FIG. 4a can be referred to.

[0308] FIG. 4b is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in FIG. 4b, the embodiment of the present disclosure relates to a communication method, which is performed by the network device 102, and the above method comprises the following steps:

[0309] In step S4201, a first SIB is sent.

[0310] In some embodiments, the implementation of step S4201 can refer to the implementation of step S2101 in FIG. 2a, and details are not repeated here.

[0311] In some embodiments, other optional implementations described before or after the description corresponding to FIG. 4b can be referred to.

[0312] In the embodiment of the present disclosure, the configuration method and configuration constraint relationship of the on-demand SIB1 parameter are given, so that when performing cell selection under any condition, if the NES is selected, the UE can initiate the on-demand SIB1. At the same time, on the configuration parameter, the delay of the on-demand SIB1 request process can be reduced as much as possible. Some embodiments are listed as follows:

[0313] Embodiment 1:

[0314] A new SIB, for example, SIB-X, is defined to configure: if the neighbor cell is an on-demand SIB1 cell, the UL WUS configuration information of the neighbor cell of the current cell is configured; and / or, if the current cell is an on-demand SIB1 cell, the UL WUS configuration information of the current cell, i.e., the cell itself, is configured.

[0315] If the UL WUS configuration information changes, for the UE in the RRC_CONNECTED state:

[0316] (1) If there is no common search space on the active BWP of the current UE, the network side sends the new SIB-X through RRC dedicated signaling. That is, dedicatedSystemInformationDelivery is used to transmit the new SIB.

[0317] The IEs corresponding to dedicatedSystemInformationDelivery can refer to the description of the foregoing embodiments.

[0318] (2) If there is common searchspace on the active BWP of the current UE, when the UE receives paging DCI indicating that system broadcast has changed, i.e. systemInfoModification in short message is set to 1, the UE acquires the new SIB-x.

[0319] Embodiment 2

[0320] This embodiment illustrates the use of RO configuration.

[0321] An indication information is configured through system broadcast information configuration (e.g. the indication information is configured in SI-RequestConfig IE); the indication information is used to indicate:

[0322] Option 1: used to indicate whether MSG1 based solution or MSG3 based solution is adopted for on-demand SI;

[0323] Option 2: used to indicate whether dedicated RO is used for on-demand SIB1, or on-demand SI, or both. Further, the indication information is configured in SI-RequestConfig IE or rach-OccasionsSI.

[0324] Or if dedicated RO is configured, i.e. rach-OccasionsSI IE is configured, then by default the dedicated RO is used for on-demand SIB1 and on-demand SI, both of which are shared.

[0325] Embodiment 3

[0326] This embodiment can be combined with the above-mentioned IE of SI-RequestConfig or the IE of SIB1-RequestResources.

[0327] In the UL WUS configuration information configured for on-demand SIB1, in order to reduce the latency of on-demand SIB1 process, then:

[0328] Option 1: if dedicated RO is configured for on-demand SIB1, or for on-demand SIB1 and on-demand SI, i.e. both of which are shared, then:

[0329] The network side configures to ensure that there is an RO resource for on-demand SIB1 in each RACH association period, and the SIB1 request resource includes:

[0330] Preamble or Preamble and ra-ssb-OccasionMaskIndex.

[0331] Here, preamble can be an index indicating only one preamble or an index indicating that N consecutive preambles start, where N is the number of SSBs associated with the RO.

[0332] If only one preamble is configured, it indicates two cases: (1) a dedicated preamble that can use a shared RO; (2) a dedicated RO, but on-demand SIB1 and on-demand SI share the RO, and the RO with ra-ssb-OccasionMaskIndex = 1 in each SSB / RACH association period is reserved for on-demand SIB1; the others are for SI.

[0333] That is, only the UL WUS of ra-ssb-OccasionMaskIndex configured for on-demand SIB1 is used to determine the used RO, and ra-AssociationPeriodIndex and ra-ssb-OccasionMaskIndex are not applicable to on-demand SIB1. If only one preamble is configured, RAR is sent in N SSB directions at this time, where N is the number of SSBs corresponding to an RO, and the N SSBs are the N SSBs associated with the RO. Or configure N preambles corresponding to each RO corresponding to ra-ssb-OccasionMaskIndex.

[0334] At this time, it can be further constrained that the RACH resource configuration requires that ssb-perRACH-Occasion can only be configured <1. That is, the value of ssb-perRACH-Occasion ENUMERATED{oneEighth, oneFourth, oneHalf, one, two, four, eight, sixteen} can only be one of oneEighth, oneFourth, oneHalf.

[0335] Option 2: Network side configures dedicated preamble for requesting SIB1, UE can initiate random access procedure on any one RACH association period, this scheme is applicable to any RO resource configuration mode: i.e. Case1~Case3 in the above embodiments.

[0336] That is, ra-AssociationPeriodIndex and ra-ssb-OccasionMaskIndex can not be configured to UL WUS configuration.

[0337] ra-ssb-OccasionMaskIndex and preamble are configured to on-demand SIB1 UL WUS.

[0338] Or only preamble is configured to on-demand SIB1, and only one is configured.

[0339] In the above two configuration modes, the configured preamble can be only one preamble, regardless of the value of N, at this time the RAR reply, the network side sends RAR in N SSB directions, said N is the number of SSB corresponding to one RO, said N SSB is the N SSB associated with the RO.

[0340] Or the configured preamble indicates the starting index of the preamble. It is implied that the consecutive N preambles are configured. N is the number of SSB corresponding to one RO

[0341] Option 3: If a dedicated RO is configured for on-demand SIB1 and is only used for on-demand SIB1. Further can be restricted:

[0342] Parameter ssb-perRACH-Occasion can only be configured <=1 configuration, the purpose is not to waste preamble.

[0343] Or when ssb-perRACH-Occasion>1, configure N RACH association periods, each period and N SSBs are one-to-one corresponding according to the order of SSB index from small to large and the order of RACH association period in time domain.

[0344] Or when ssb-perRACH-Occasion>1, configure N preambles to further distinguish different beam directions.

[0345] Or when ssb-perRACH-Occasion > 1, 1 preamble is configured, then RAR is sent in N SSB directions, N is the number of SSBs corresponding to one RO, and the N SSBs are the N SSBs associated with the RO.

[0346] In the embodiments of the present disclosure, a configuration method and a configuration constraint relationship of the on-demand SIB1 parameter are given, so that in any case, when cell selection is performed, on-demand SIB1 can also be initiated if NES is selected. At the same time, in the configuration parameter, the delay of the on-demand SIB1 request process can be reduced as much as possible.

[0347] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device including units or modules for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including units or modules for implementing each step performed by the network equipment (such as access network equipment, core network function node, core network equipment, etc.) in any of the above methods.

[0348] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize the functions of any of the above methods or the units or modules of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of the hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship between the elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0349] In embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuits, and the logical relationship of the hardware circuits is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of part or all of the units or modules described above. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), or the like.

[0350] FIG. 5a is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 5a, the terminal 5100 can include at least one of a transceiver module 5101, a processing module 5102, and the like. In some embodiments, the transceiver module 5101 is configured to receive a first system information block (SIB) sent by a network device, the first SIB including configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request SIB1 and / or SI when the terminal selects a cell to the NES cell.

[0351] Optionally, the transceiver module 5101 is configured to perform at least one of the communication steps, such as receiving and / or transmitting, performed by the terminal 101 in any of the methods described above. Details are not described herein again. Optionally, the processing module 5102 is configured to perform at least one of the other steps performed by the terminal 101 in any of the methods described above. Details are not described herein again.

[0352] FIG. 5b is a structural diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 5b, the network device 5200 can include at least one of a transceiver module 5201, a processing module 5202, and the like. In some embodiments, the transceiver module 5201 is configured to send a first system information block (SIB) to a terminal, where the first SIB includes configuration information for one or more network energy saving (NES) cells, and the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request a SIB1 and / or SI when the terminal selects a cell to the NES cell.

[0353] In some embodiments, the transceiver module can include a sending module and / or a receiving module, which can be separate or integrated together. Alternatively, the transceiver module can be replaced by a transceiver.

[0354] In some embodiments, the processing module can be one module or can include multiple sub-modules. Alternatively, the multiple sub-modules perform all or part of the steps required by the processing module. Alternatively, the processing module can be replaced by a processor.

[0355] FIG. 6a is a structural diagram of a communication device 6100 according to an embodiment of the present disclosure. The communication device 6100 can be a network device (such as an access network device, a core network device, etc.), a terminal (such as a user equipment, etc.), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0356] As shown in FIG. 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. Alternatively, the communication device 6100 is configured to execute any of the above methods. Alternatively, the one or more processors 6101 are configured to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0357] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps of sending and / or receiving in the above-described methods, and the processor 6101 performs at least one of the other steps. In alternative embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Alternatively, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be replaced by each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced by each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced by each other.

[0358] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memory 6103 can also be outside the communication device 6100. In alternative embodiments, the communication device 6100 can include one or more interface circuits 6104. Alternatively, the interface circuit 6104 is connected with the memory 6103, and the interface circuit 6104 can be used to receive data from the memory 6103 or other devices, and can be used to send data to the memory 6103 or other devices. For example, the interface circuit 6104 can read the data stored in the memory 6103 and send the data to the processor 6101.

[0359] The communication device 6100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 can not be limited by Figure 6a. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally include storage components for storing data, programs; (3) an ASIC, such as a Modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0360] Figure 6b is a structural schematic diagram of a chip 6200 according to an embodiment of the present disclosure. For the case where the communication device 6100 is a chip or a chip system, the structural schematic diagram of the chip 6200 shown in Figure 6b can be referred to, but is not limited thereto.

[0361] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to perform any of the above methods.

[0362] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, the terms interface circuits, interface, transceiver pin, etc. can replace each other. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Optionally, all or part of memory 6203 can be outside chip 6200. Optionally, interface circuit 6202 is connected with memory 6203, and interface circuit 6202 can be used to receive data from memory 6203 or other devices, and interface circuit 6202 can be used to send data to memory 6203 or other devices. For example, interface circuit 6202 can read data stored in memory 6203 and send the data to processor 6201.

[0363] In some embodiments, interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above-mentioned methods. The performance of interface circuit 6202 in the communication steps such as sending and / or receiving in the above-mentioned methods means that interface circuit 6202 performs data interaction between processor 6201, chip 6200, memory 6203 or transceiver devices. In some embodiments, processor 6201 performs at least one of the other steps.

[0364] The modules and / or devices described in each of the embodiments of virtual devices, physical devices, chips, etc. can be combined or separated as appropriate. Optionally, part or all of the steps can also be performed by multiple modules and / or devices in cooperation, which is not limited here.

[0365] The disclosure also proposes a storage medium, and the above-mentioned storage medium stores instructions, when the above-mentioned instructions run on communication device 6100, the above-mentioned instructions make communication device 6100 perform any one of the above-mentioned methods. Optionally, the above-mentioned storage medium is an electronic storage medium. Optionally, the above-mentioned storage medium is a computer readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the above-mentioned storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0366] The disclosure also proposes a program product, and the above-mentioned program product is executed by communication device 6100, and the above-mentioned program product makes communication device 6100 perform any one of the above-mentioned methods. Optionally, the above-mentioned program product is a computer program product.

[0367] The disclosure also proposes a computer program, and when the computer program runs on a computer, the computer program makes the computer perform any one of the above-mentioned methods. Industrial applicability

[0368] The terminal in the connected state can obtain the configuration information through the first SIB, and when the cell selection is to the NES cell, the terminal can ensure that there is valid configuration information, so as to facilitate timely request of the SI or the SIB1 according to the pre-received configuration information.

Claims

1. A communication method, performed by a terminal, the method comprising: receiving a first system information block (SIB) transmitted by a network device, the first SIB comprising configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request a SIB1 and / or request system information (SI) when cell selection is to the NES cell.

2. The method of claim 1, wherein, The method further comprises: receiving RRC dedicated signaling transmitted by the network device, the RRC dedicated signaling being used to transmit a new first SIB when the configuration information changes, wherein there is no common search space on an active bandwidth part (BWP) of the terminal.

3. The method of claim 1, wherein, The method further comprises: receiving paging downlink control information (DCI) transmitted by the network device, the paging DCI being used to indicate that the configuration information changes; receiving the new first SIB transmitted by the network device on a common search space; wherein there is a common search space on the active BWP of the terminal.

4. The method of any one of claims 1 to 3, wherein, The configuration information comprises at least one of: indication information; a dedicated random access occasion (RO); and wherein the indication information is used to indicate whether the request SI is based on MSG1 or MSG3, or the dedicated RO is used to request a SIB1 and / or request SI. 5.The method of claim 4, wherein: when the configuration information comprises the dedicated RO and does not comprise the indication information, the dedicated RO is used by default to request a SIB1 and request SI. 6.The method of claim 4, wherein: the indication information is located in an information element (IE) of a system information request configuration or in an IE corresponding to the dedicated RO. 7.The method of any one of claims 4 to 6, wherein: the dedicated RO is used to request a SIB1, or is used to request a SIB1 and request SI, wherein the dedicated RO is associated with a synchronization signal block (SSB).

8. The method of claim 7, wherein, The configuration information comprises at least one of: a random access association period; SIB1 request resources, wherein the SIB1 request resources are used to indicate a preamble for requesting a SIB1, or a preamble and a random access occasion index for requesting a SIB1. 9.The method of claim 8, wherein: there is one dedicated RO for requesting a SIB1 in each random access association period. 10.The method of claim 9, wherein: when the SIB1 request resources comprise an index of a preamble, in the dedicated RO, an RO with a first value of the random access occasion index is used to request a SIB1, and an RO corresponding to other values of the random access occasion index is used to request SI.

11. The method of claim 10, wherein, The method further comprises: when cell selection is to an NES cell, transmitting MSG1 comprising the preamble to the network device on the RO corresponding to the first value in each random access association period, the MSG1 being used to request a SIB1; or transmitting, to the network device, a MSG1 including the preamble on the RO corresponding to the other value in each random access association period, the MSG1 being used for requesting SI.

12. The method of claim 8, wherein, The method further includes: when the SIB1 request resource includes an index of a preamble and the preamble is dedicated for requesting SIB1, transmitting, in any random access association period, a MSG1 including the preamble, the MSG1 being used for requesting SIB1.

13. The method of claim 11 or 12, wherein, The method further includes: receiving a MSG2 transmitted by the network device, wherein the MSG2 is transmitted in N directions, the N being a number of synchronization signal blocks (SSBs) associated with the dedicated RO, the N being an integer.

14. The method of claim 8 or 9, wherein, the SIB1 request resource includes a preamble start index, the preamble start index being used for determining N indices of consecutive preambles, the N being a number of synchronization signal blocks (SSBs) associated with the dedicated RO, the N being an integer.

15. The method of any one of claims 7 to 14, wherein, the first parameter in the configuration information for indicating a correspondence between an SSB and a number of ROs satisfies one of: the first parameter < 1; the first parameter > 1 and only one preamble for requesting SIB1 is configured; the first parameter > 1 and N preambles for requesting SIB1 are configured, the N being an integer; the first parameter > 1 and the configuration information includes N random access association periods, wherein the N random access association periods correspond to N SSBs one by one.

16. A communication method, performed by a network device, the method comprising: transmitting, to a terminal, a first system information block (SIB), the first SIB including configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request SIB1 and / or request SI when the terminal selects a cell to the NES cell.

17. The method of claim 16, wherein, The method further includes: transmitting, to the terminal, RRC dedicated signaling, the RRC dedicated signaling being used for transmitting a new first SIB when the configuration information changes; wherein there is no common search space on an active bandwidth part (BWP) of the terminal.

18. The method of claim 17, wherein, The method further includes: transmitting, to the terminal, a paging downlink control information (DCI), the paging DCI being used for indicating that the configuration information changes; transmitting the new first SIB in a common search space; wherein there is a common search space on the active BWP of the terminal.

19. The method of any one of claims 16 to 18, wherein, The configuration information includes at least one of: indication information; a dedicated random access occasion (RO); wherein the indication information is used for indicating whether requesting SI is based on a MSG1 or a MSG3, or the indication information is used for indicating that the dedicated RO is used for requesting SIB1 and / or requesting SI.

20. The method of claim 19, wherein, when the configuration information includes the dedicated RO and does not include the indication information, the dedicated RO is used by default for requesting SIB1 and requesting SI.

21. The method of claim 19, wherein, The indication information is located in an information element (IE) of a system information request configuration or in an IE corresponding to the dedicated RO.

22. The method of any of claims 19-21, wherein, The dedicated RO is used for requesting SIB1 or for requesting SIB1 and requesting SI, and the dedicated RO is associated with a synchronization signal block (SSB).

23. The method of claim 22, wherein, The configuration information comprises at least one of: a random access association period; SIB1 request resources, wherein the SIB1 request resources are used to indicate a preamble for requesting SIB1 or a preamble for requesting SIB1 and a random access occasion index.

24. The method of claim 23, wherein, There is one dedicated RO for requesting SIB1 in each random access association period.

25. The method of claim 24, wherein, When the SIB1 request resources comprise an index of a preamble, in the dedicated RO, an RO with a first value of the random access occasion index is used for requesting SIB1, and an RO with other values of the random access occasion index is used for requesting SI.

26. The method of claim 25, wherein, The method further comprises: when selecting a cell to a NES cell, sending, to the network device, a MSG1 comprising the preamble on the RO corresponding to the first value in each random access association period, the MSG1 being used for requesting SIB1; or sending, to the network device, a MSG1 comprising the preamble on the RO corresponding to the other values in each random access association period, the MSG1 being used for requesting SI.

27. The method of claim 23, wherein, The method further comprises: When the SIB1 request resources comprise an index of a preamble and the preamble is dedicated for requesting SIB1, sending, to the network device, a MSG1 comprising the preamble on any random access association period, the MSG1 being used for requesting SIB1.

28. The method of claim 26 or 27, wherein, The method further comprises: receiving a MSG2 sent by the network device, wherein the MSG2 is sent in N directions, N being a number of synchronization signal blocks (SSBs) associated with the dedicated RO, N being an integer.

29. The method of claim 23 or 24, wherein, The SIB1 request resources comprise a preamble start index, the preamble start index being used to determine N indices of consecutive preambles, N being a number of synchronization signal blocks (SSBs) associated with the dedicated RO, N being an integer.

30. The method of any one of claims 22 to 29, wherein, A first parameter in the configuration information for indicating a number of SSBs corresponding to a RO satisfies one of: the first parameter < 1; the first parameter > 1 and only one preamble for requesting SIB1 is configured; the first parameter > 1 and N preambles for requesting SIB1 are configured, N being an integer; the first parameter > 1 and N random access association periods are included in the configuration information, wherein the N random access association periods correspond to N SSBs one by one.

31. A terminal comprising: The transceiver is configured to receive a first system information block (SIB) transmitted by the network device, the first SIB comprising configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request a SIB1 and / or to request system information (SI) when cell selection is performed to the NES cell.

32. A network device comprising: The transceiver is configured to transmit a first system information block (SIB) to a terminal, the first SIB comprising configuration information for one or more network energy saving (NES) cells, wherein the terminal is in a radio resource control (RRC) connected state, and the configuration information is used by the terminal to request a SIB1 and / or to request system information (SI) when cell selection is performed to the NES cell.

33. A terminal comprising: one or more processors; The terminal is configured to implement the method of any one of claims 1 to 15.

34. A network device comprising: one or more processors; The network device is configured to implement the method of any one of claims 16 to 30.

35. A communication system comprising a terminal and a network device, wherein The terminal is configured to implement the method of any one of claims 1 to 15; The network device is configured to implement the method of any one of claims 16 to 30.

36. A storage medium having stored instructions, wherein The instructions, when executed on a communication device, cause the communication device to perform the method of any one of claims 1 to 15, or any one of claims 16 to 30.

37. A program product, wherein The program product, when executed on a communication device, causes the communication device to perform the method of any one of claims 1 to 15, or any one of claims 16 to 30.

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