CN115315988A

CN115315988A - Method and device for requesting system broadcast information and terminal equipment

Info

Publication number: CN115315988A
Application number: CN202080098937.0A
Authority: CN
Inventors: 王淑坤
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2022-11-08
Also published as: WO2021212283A1

Abstract

The embodiment of the application provides a method, a device and terminal equipment for requesting system broadcast information, wherein the method comprises the following steps: the terminal equipment sends a system broadcast request message, wherein the system broadcast request message carries first indication information, and the first indication information is used for indicating one or more cells which need to request the system broadcast information.

Description

Method and device for requesting system broadcast information and terminal equipment

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a method and a device for requesting system broadcast information and terminal equipment.

Background

In order to reduce the number of System Information (SI) broadcast by default by the base station and thus save radio resources, a mechanism for transmitting System broadcast Information on demand is introduced, specifically, the base station transmits the SI only after receiving an SI request from the terminal device.

At present, a mechanism for sending system broadcast information on demand does not consider a Multi-radio access technology-Dual Connectivity (MR-DC) scenario and a Carrier Aggregation (CA) scenario, and it is clear how to send system broadcast information on demand in such a scenario.

Disclosure of Invention

The embodiment of the application provides a method and a device for requesting system broadcast information and terminal equipment.

The method for requesting system broadcast information provided by the embodiment of the application comprises the following steps:

the terminal equipment sends a system broadcast request message, wherein the system broadcast request message carries first indication information, and the first indication information is used for indicating one or more cells needing to request the system broadcast information.

The device for requesting system broadcast information provided by the embodiment of the application is applied to terminal equipment, and comprises:

a sending unit, configured to send a system broadcast request message, where the system broadcast request message carries first indication information, and the first indication information is used to indicate one or more cells that need to request system broadcast information.

The terminal device provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing computer programs, and the processor is used for calling and running the computer programs stored in the memory and executing the method for requesting the system broadcast information.

The chip provided by the embodiment of the application is used for realizing the method for requesting the system to broadcast information.

Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the method for requesting the system broadcast information.

A computer-readable storage medium provided in an embodiment of the present application stores a computer program, where the computer program enables a computer to execute the method for requesting system broadcast information described above.

The computer program product provided by the embodiment of the present application includes computer program instructions, which make a computer execute the method for requesting system broadcast information described above.

The computer program provided by the embodiment of the present application, when running on a computer, causes the computer to execute the above method for requesting system broadcast information.

Through the technical scheme, in an MR-DC scene or a CA scene, due to the distribution of a plurality of cells, when the terminal equipment requests system broadcast information (namely SI) from a network side, one or more cells which need to request the system broadcast information are indicated in the system broadcast request message, so that the target cells which need to request the system broadcast information by the terminal equipment can be determined, and a mechanism for sending the system broadcast information as required in the MR-DC scene or the CA scene is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

FIG. 2 is a flow chart of on-demand system broadcast information delivery provided by an embodiment of the present application;

fig. 3 is a flowchart illustrating a method for requesting a system to broadcast information according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an apparatus for requesting system broadcast information according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a chip of an embodiment of the present application;

fig. 7 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a system, a 5G communication system, a future communication system, or the like.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Optionally, the Network device 110 may be an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the Network device may be a mobile switching center, a relay station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a future communication system, and the like.

The communication system 100 also includes at least one terminal 120 located within the coverage area of the network device 110. As used herein, "terminal" includes, but is not limited to, connection via a wireline, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a Digital cable, a direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., for a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal that is arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal can refer to an access terminal, user Equipment (UE), a subscriber unit, a subscriber station, mobile, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.

Optionally, the terminals 120 may perform direct-to-Device (D2D) communication therebetween.

Alternatively, the 5G communication system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 1 exemplarily shows one network device and two terminals, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminals within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal 120 having a communication function, and the network device 110 and the terminal 120 may be the specific devices described above and are not described again here; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions related to the embodiments of the present application are described below.

With the pursuit of speed, latency, high-speed mobility, energy efficiency and the diversity and complexity of the services in future life, the third generation partnership project (3) ^rd Generation Partnership Project,3 GPP) the international organization for standardization began developing 5G. The main application scenarios of 5G are: enhanced Mobile Ultra wide band (eMBB), low-Latency high-reliability communication (URLLC), and massive Machine-Type communication (mMTC).

On the one hand, the eMBB still targets users for multimedia content, services and data, and its demand is growing very rapidly. On the other hand, because the eMBB may be deployed in different scenarios, such as indoor, urban, rural, etc., and the difference between the capabilities and the requirements is relatively large, it cannot be said that it must be analyzed in detail in conjunction with a specific deployment scenario. Typical applications of URLLC include: industrial automation, electric power automation, remote medical operation (surgery), traffic safety, and the like. Typical characteristics of mtc include: high connection density, small data volume, insensitive time delay service, low cost and long service life of the module, etc.

When NR is deployed early, complete NR coverage is difficult to obtain, so typical network coverage is wide area LTE coverage and islanding coverage mode of NR. Moreover, a large amount of LTE is deployed below 6GHz, and the spectrum below 6GHz available for 5G is rare. NR must therefore be studied for spectrum applications above 6GHz, with limited high band coverage and fast signal fading. Meanwhile, in order to protect the early LTE investment of a mobile operator, a light interworking (TIGHT) working mode between LTE and NR is provided.

Dual Connectivity (DC)

In order to enable 5G network deployment and commercial applications as soon as possible, 3GPP first completes the first 5G release, namely EN-DC (LTE-NR Dual Connectivity). In EN-DC, an LTE base station (eNB) as a Master Node (MN) and an NR base station (gNB or EN-gNB) as a Secondary Node (SN) are connected to an EPC core network. In the later stage of R15, other DC modes, namely NE-DC,5GC-EN-DC, NR DC, are supported. In NE-DC, NR base station as MN, eLTE base station as SN, connect 5GC core network. In 5GC-EN-DC, an eLTE base station is used as MN, an NR base station is used as SN, and a 5GC core network is connected. In NR DC, an NR base station serves as MN and an NR base station serves as SN, and is connected to a 5GC core network.

The technical solution of the embodiment of the present application may be applied not only to a dual connection architecture (e.g., MR-DC architecture) but also to a Multi Connection (MC) architecture, and typically, the MC architecture may be an MR-MC architecture.

Carrier aggregation

To meet the demand for high rates, CA technology is also supported in 5G. CA enables NR systems to support larger bandwidths by jointly scheduling and using resources on multiple Component Carriers (CCs), thereby enabling higher peak rates of the system. According to the continuity of the aggregated carriers on the frequency spectrum, the method can be divided into continuous carrier aggregation and non-continuous carrier aggregation; according to whether the frequency bands (bands) where the aggregated carriers are located are the same, the method is divided into Intra-band carrier aggregation and inter-band carrier aggregation.

In CA, there is one and only one Primary Cell Component (PCC), which provides RRC signaling connection, non-Access stratum (NAS) function, security, and the like. A Physical Uplink Control Channel (PUCCH) exists on the PCC and only on the PCC. In CA, there may be one or more Secondary Cell Components (SCCs) that provide only additional radio resources. The PCC and the SCC are also referred to as serving cells, where a cell on the PCC is a primary cell (PCell) and a cell on the SCC is a secondary cell (SCell). It is also specified in the standard that the aggregated carriers are supported by a maximum of 5, i.e. the maximum bandwidth after aggregation is 100MHZ, and the aggregated carriers belong to the same base station. All aggregated carriers use the same Cell-Radio Network Temporary Identifier (C-RNTI), and the base station ensures that the C-RNTI does not conflict in the Cell where each carrier is located. Because the asymmetric carrier aggregation and the symmetric carrier aggregation are supported, the aggregated carriers must have downlink carriers and may not have uplink carriers. Moreover, for a primary carrier cell, there must be a Physical Downlink Control Channel (PDCCH) and a PUCCH of the cell, and only the primary carrier cell has the PUCCH, and there may be PDCCHs in other secondary carrier cells.

RRC state

In order to reduce air interface signaling, quickly recover wireless connection, and quickly recover data service, 5G defines a new Radio Resource Control (RRC) state, that is, an RRC INACTIVE (RRC _ INACTIVE) state. This state is distinguished from the RRC IDLE (RRC IDLE) state and the RRC ACTIVE (RRC ACTIVE) state. Wherein,

1) RRC _ IDLE state (IDLE state for short): the mobility is cell selection and reselection based on terminal equipment, paging is initiated by a Core Network (CN), and a paging area is configured by the CN. The base station side has no terminal equipment context and no RRC connection.

2) RRC _ CONNECTED state (CONNECTED state for short): the RRC connection exists, and the base station side and the terminal device side have a terminal device context. The network side knows that the location of the terminal device is at a particular cell level. Mobility is network side controlled mobility. Unicast data may be transmitted between the terminal device and the base station.

3) RRC _ INACTIVE state (INACTIVE state for short): mobility is cell selection reselection based on terminal equipment, connection between CN-NR exists, context of the terminal equipment exists on a certain base station, paging is triggered by RAN, a paging area based on the RAN is managed by the RAN, and a network side knows that the position of the terminal equipment is based on the paging area level of the RAN.

Mechanism for on-demand delivery of system broadcast information

In order to reduce the number of SI broadcast by default by the base station and thus save wireless resources, a mechanism for transmitting System broadcast Information on demand is introduced, and the SI may include a Master Information Block (MIB) and at least one System Information Block (SIB), such as SIB1, SIB2, SIB3, \ 8230 \ 8230 ], SIB18, and the like. Alternatively, in addition to MIB and SIB1, other SIBs may be requested as needed, specifically, the base station may send out the SI only after receiving the SI request from the terminal device. Referring to fig. 2, 201a: the base station sends the MIB to the terminal equipment; 201b: the base station sends SIB1 to the terminal equipment; 202: the terminal equipment sends a system broadcast request message (namely a SystemInformationRequest message) to the base station; 203: the base station transmits a system information message (i.e., systemlnformation message) to the terminal device.

Wherein, SIB1 carries indication information indicating whether each SI is being broadcasted, and the terminal device may know which SIBs need to perform an SI request by reading SIB 1. The mode of the SI request includes an MSG1-based SI request (MSG 1-based SI request) and an MSG3-based SI request (MSG 3-based SI request).

Here, the MSG1-based SI request is implemented based on a reserved Preamble (Preamble) and/or a random access channel resource (RACH resource), wherein RACH resource refers to a RACH Occasion (RO) resource.

Here, for the MSG3-based SI request, the Preamble and RACH resource do not need to be reserved, and this is achieved by an RRC system information request (rrcsysteinforequest) message (i.e., MSG 3).

The terminal device knows whether to employ an MSG1-based SI request or an MSG3-based SI request by reading the system information (i.e. SIB 1). If the base station provides the configuration information (i.e., SI-Request-Config) of the SI Request in the system information (i.e., SIB 1), the terminal equipment uses the MSG1-based SI Request, otherwise uses the MSG3-based SI Request.

After receiving the SI request acknowledgement from the base station, the terminal device receives the SI in the current modification period, and the terminal device receives the SI until the modification period is finished or until the SI is received. If a random access failure occurs during the SI request, the behavior of the terminal device is then dependent on its own implementation.

R15 does not support the connected terminal device to request the system broadcast information. R16 supports the connected terminal device to request the system broadcast information, and specifically, a dedicated signaling (i.e., dedicatedsabrequest message) is defined for requesting the system broadcast information, and the system broadcast information is requested with SIB as a granularity (i.e., per SIB) in the dedicated signaling.

At present, an MR-DC scenario or a CA scenario is not considered in a mechanism for sending system broadcast information as needed, and because multiple cells are distributed in the MR-DC scenario or the CA scenario, for example, in the MR-DC scenario, a Master Cell Group (MCG) exists on an MN side, and further, the MCG includes a PCell and one or more scells. The SN side has a Secondary Cell Group (SCG), and further the SCG includes a primary Secondary Cell (PSCell), and optionally, also includes one or more scells. For another example, in a CA scenario, there is one PCell and one or more scells. How to request the system broadcast information of the PSCell and SCells by the connected terminal device needs to be clear, and therefore, the following technical solutions of the embodiments of the present application are proposed.

It should be noted that the "system broadcast request message" in the embodiment of the present application may also be referred to as a "system information request message" or an "SI request message".

It should be noted that "system broadcast information" in the embodiment of the present application may also be referred to as "system information (i.e., SI)" or "system information block (i.e., SIB)".

It should be noted that the technical solution of the embodiment of the present application may be applied to an MR-DC scenario or a CA scenario. For the MR-DC scenario, there is an MCG on the MN side, and further, the MCG includes a PCell and one or more scells. The SN side has an SCG, and further, the SCG includes a primary secondary cell (PSCell), and optionally, one or more scells. For the CA scenario, there is one PCell and one or more scells.

Fig. 3 is a flowchart illustrating a method for requesting system broadcast information according to an embodiment of the present application, where as shown in fig. 3, the method for requesting system broadcast information includes the following steps:

step 301: the terminal equipment sends a system broadcast request message, wherein the system broadcast request message carries first indication information, and the first indication information is used for indicating one or more cells needing to request the system broadcast information.

In the embodiment of the application, the terminal device is in a connected state. Without being limited thereto, the terminal device may also be a terminal device in another RRC state.

In an optional manner, when the terminal device is in a connected state, the system broadcast request message is a dedicated SIB request (dedicatedsabrequest) message.

In the embodiment of the present application, the terminal device may send the system broadcast request message in the following manner.

● The method I comprises the following steps: and the terminal equipment sends a system broadcast request message to the PCell.

In an alternative, for the MR-DC scenario, the PCell is the primary cell on the MN side. In another alternative, for a CA scenario, the PCell is a primary cell in the aggregated multiple carriers.

In the embodiment of the present application, the system broadcast request message carries first indication information, where the first indication information is used to indicate one or more cells that need to request system broadcast information.

Here, for an MR-DC scenario, the one or more cells include at least one of: PSCell, at least one SCell on MN side, at least one SCell on SN side. For a CA scenario, the one or more cells include one or more scells in an aggregated carrier.

A) In an optional manner, the first indication information includes one or more serving cell indexes (serving cell indexes); each of the one or more serving cell indices is used to indicate a cell that needs to request system broadcast information. Or, the first indication information includes a first bitmap, each bit in the first bitmap corresponds to a serving cell (serving cell) (or corresponds to a serving cell index), and a value of the bit is set to a first value indicating that the serving cell corresponding to the bit needs to request system broadcast information.

Here, the first value is, for example, 1, and based on this, if the value of a bit in the first bitmap is set to 1, it indicates that the serving cell corresponding to the bit needs to request system broadcast information. In addition, if the value of a bit in the first bitmap is set to 0 (i.e., a second value), it indicates that the serving cell corresponding to the bit does not need to request system broadcast information.

Further, optionally, the system broadcast request message further carries second indication information, where the second indication information is used to indicate a SIB type that each cell of the one or more cells needs to request.

The network side (e.g., base station) can determine which cells (i.e., which serving cells) need to request the system broadcast information through the received first indication information. Further, the network side (e.g. base station) may determine which SIBs of each of the cells are requested by the terminal device through the received second indication information.

In an optional manner, the second indication information includes a second bitmap, each bit in the second bitmap corresponds to one SIB type, and a value of the bit is used to indicate whether the SIB type corresponding to the bit needs to be requested. For example: the bit value of 1 represents that the SIB type corresponding to the bit needs to be requested, and the bit value of 0 represents that the SIB type corresponding to the bit value does not need to be requested.

B) In an alternative, the first indication information is used to indicate one of the following: PCell, PSCell, PCell, and PSCell (i.e., both); wherein,

under the condition that the first indication information indicates the PCell, the first indication information is used for indicating that a cell which needs to request system broadcast information is the PCell; or,

under the condition that the first indication information indicates the PSCell, the first indication information is used for indicating that a cell which needs to request system broadcast information is the PSCell; or,

and under the condition that the first indication information indicates the PCell and the PSCell, the first indication information is used for indicating that the cell which needs to request the system broadcast information is the PCell and the PSCell.

Further, optionally, the system broadcast request message further carries second indication information, where the second indication information is used to indicate a SIB type that each cell of the one or more cells indicated by the first indication information needs to request.

The network side (e.g. the base station) can determine which cells (i.e. which serving cells) need to request the system broadcast information through the received first indication information. Further, the network side (e.g. base station) may determine which SIBs of each of the cells are requested by the terminal device through the received second indication information.

In an optional manner, the second indication information includes a second bitmap, each bit in the second bitmap corresponds to one SIB type, and a value of the bit is used to indicate whether the SIB type corresponding to the bit needs to be requested. For example: the value of the bit is 1 to represent that the SIB type corresponding to the bit needs to be requested, and the value of the bit is 0 to represent that the SIB type corresponding to the bit does not need to be requested.

C) In an alternative, the first indication information is used to indicate one of the following: MCG, SCG, MCG and SCG (i.e., booth); wherein,

under the condition that the first indication information indicates the MCG, the first indication information is used for indicating that the cell which needs to request the system broadcast information is all service cells on the MCG side; or,

under the condition that the first indication information indicates the SCG, the first indication information is used for indicating that the cell which needs to request the system broadcast information is all service cells at the SCG side; or,

and under the condition that the first indication information indicates the MCG and the SCG, the first indication information is used for indicating that the cells which need to request the system broadcast information are all serving cells on the MCG side and all serving cells on the SCG side.

D) In an optional manner, the first indication information is used to indicate that a cell that needs to request system broadcast information is one or more serving cells on the MCG side; and/or the first indication information is used for indicating that the cell which needs to request the system broadcast information is one or more service cells on the SCG side.

Specifically, the first indication information includes MCG indication information and one or more first serving cell indexes, where each first serving cell index in the one or more first serving cell indexes is used to indicate a serving cell on the MCG side that needs to request system broadcast information; and/or the first indication information comprises SCG indication information and one or more second serving cell indexes, wherein each second serving cell index in the one or more second serving cell indexes is used for indicating a serving cell at the SCG side which needs to request the system broadcast information.

● The second method comprises the following steps: and the terminal equipment sends a system broadcast request message to the PSCell.

In an alternative, for the MR-DC scenario, the PSCell is the primary cell on the SN side. And the terminal equipment sends a system broadcast request message to the PSCell through the SRB 3. Here, SRB3 refers to interactive signaling between the terminal device and the SN.

In this embodiment of the present application, the system broadcast request message carries first indication information, where the first indication information is used to indicate one or more cells that need to request system broadcast information.

Here, for an MR-DC scenario, the one or more cells include at least one of: PSCell, at least one SCell on SN side.

I) In an optional manner, the first indication information includes one or more second serving cell indexes; each of the one or more second serving cell indexes is used to indicate a serving cell on the SCG side that needs to request system broadcast information.

II) in an optional manner, the first indication information is used to indicate that a cell that needs to request system broadcast information is a PSCell.

On the basis of the above scheme I) and/or II), optionally, the system broadcast request message further carries second indication information, where the second indication information is used to indicate a SIB type that each cell of the one or more cells indicated by the first indication information needs to request.

For the solution of the first manner or the second manner, optionally, the one or more cells that need to request system broadcast information and are indicated in the first indication information, and/or the SIB type that each cell needs to request and is indicated in the second indication information may be determined by:

the terminal device determines a target cell (i.e. one or more cells indicated in the first indication information that need to request system broadcast information) that needs to request system broadcast information and/or a SIB type that the target cell needs to request based on at least one of: a PDU conversation mark corresponding to the DRB, at least one service cell mark associated with the logic channel mark, at least one service cell mark associated with the DRB mark, at least one service cell associated with the logic channel mark and at least one service cell associated with the DRB.

In an example, if the network side configures a PDU session associated with DRB1 and needs to acquire a certain SIB, the terminal device determines whether a DRB corresponding to the PDU session is established on the MN side or the SCG side, or on both the MN side and the SCG side. Accordingly, the terminal device may request the serving cell of the MN side, or the serving cell of the SCG side, or the serving cells of the MN side and the SCG side to issue the corresponding SIB.

In another example, a network side configures a Logical Channel Identifier (LCID) associated with a serving cell identifier, and when determining that a service identified by the LCID needs to use a SIB, the terminal device requests the serving cell indicated by the serving cell identifier associated with the LCID to issue the SIB.

Fig. 4 is a schematic structural component diagram of an apparatus for requesting system broadcast information according to an embodiment of the present application, and is applied to a terminal device, and as shown in fig. 4, the apparatus for requesting system broadcast information includes:

a sending unit 401, configured to send a system broadcast request message, where the system broadcast request message carries first indication information, and the first indication information is used to indicate one or more cells that need to request system broadcast information.

In an optional manner, the sending unit 401 is configured to send a system broadcast request message to the PCell.

In an alternative, the first indication information includes one or more serving cell indexes; each of the one or more serving cell indexes is used for indicating a cell which needs to request system broadcast information; or, the first indication information includes a first bitmap, each bit in the first bitmap corresponds to one serving cell, and a value of the bit is set to a first value indicating that the serving cell corresponding to the bit needs to request system broadcast information.

In an alternative, the first indication information is used to indicate one of the following: PCell, PSCell, PCell and PSCell; wherein,

and under the condition that the first indication information indicates the PCell and the PSCell, the first indication information is used for indicating that the cells needing to request the system broadcast information are the PCell and the PSCell.

In an alternative, the first indication information is used to indicate one of the following: MCG, SCG, MCG and SCG; wherein,

In an optional manner, the first indication information is used to indicate that a cell that needs to request system broadcast information is one or more serving cells on the MCG side; and/or the presence of a gas in the gas,

the first indication information is used for indicating that the cell which needs to request the system broadcast information is one or more service cells on the SCG side.

In an optional manner, the first indication information includes MCG indication information and one or more first serving cell indexes, where each first serving cell index in the one or more first serving cell indexes is used to indicate a serving cell on the MCG side that needs to request system broadcast information; and/or the presence of a gas in the gas,

the first indication information includes SCG indication information and one or more second serving cell indexes, and each of the one or more second serving cell indexes is used for indicating a serving cell on the SCG side that needs to request system broadcast information.

In an optional manner, the sending unit 401 is configured to send a system broadcast request message to the PSCell.

In an optional manner, the sending unit 401 is configured to send a system broadcast request message to the PSCell through SRB 3.

In an alternative, the first indication information includes one or more second serving cell indexes; each of the one or more second serving cell indexes is used to indicate a serving cell on the SCG side that needs to request system broadcast information.

In an optional manner, the first indication information is used to indicate that a cell that needs to request system broadcast information is a PSCell.

In an optional manner, the system broadcast request message further carries second indication information, where the second indication information is used to indicate an SIB type that each cell of the one or more cells needs to request.

In an optional manner, the apparatus further comprises:

a determining unit 402, configured to determine a target cell and/or a SIB type that the target cell needs to request for system broadcast information based on at least one of the following: a PDU conversation mark corresponding to the DRB, at least one service cell mark associated with the logic channel mark, at least one service cell mark associated with the DRB mark, at least one service cell associated with the logic channel mark and at least one service cell associated with the DRB.

In an alternative, the system broadcast request message is a DedicatedSIBRequest message.

In an optional manner, the terminal device is a terminal device in a connected state.

It should be understood by those skilled in the art that the above description of the apparatus for requesting system broadcast information according to the embodiments of the present application can be understood by referring to the description of the method for requesting system broadcast information according to the embodiments of the present application.

Fig. 5 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application. The communication device may be a terminal device or a network device, and the communication device 500 shown in fig. 5 includes a processor 510, and the processor 510 may call and execute a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 5, the communication device 500 may further include a memory 520. From the memory 520, the processor 510 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 520 may be a separate device from the processor 510, or may be integrated into the processor 510.

Optionally, as shown in fig. 5, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 530 may include a transmitter and a receiver, among others. The transceiver 530 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 500 may specifically be a network device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 500 may specifically be a mobile terminal/terminal device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Fig. 6 is a schematic structural diagram of a chip of the embodiment of the present application. The chip 600 shown in fig. 6 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 6, the chip 600 may further include a memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, the chip 600 may further include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the chip 600 may further include an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip.

Fig. 7 is a schematic block diagram of a communication system 700 according to an embodiment of the present application. As shown in fig. 7, the communication system 700 includes a terminal device 710 and a network device 720.

The terminal device 710 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 720 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, which is not described herein again.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off the shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting, for example, the memories in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instruction enables the computer to execute a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instruction causes the computer to execute a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of requesting system broadcast information, the method comprising:

the terminal equipment sends a system broadcast request message, wherein the system broadcast request message carries first indication information, and the first indication information is used for indicating one or more cells which need to request the system broadcast information.
The method of claim 1, wherein the terminal device transmits a system broadcast request message comprising:

and the terminal equipment sends a system broadcast request message to the primary cell PCell.
The method of claim 2, wherein,

the first indication information comprises one or more serving cell indexes serving cell index; each of the one or more serving cell indexes is used to indicate a cell that needs to request system broadcast information; or,

the first indication information includes a first bitmap, each bit in the first bitmap corresponds to a serving cell, and the value of the bit is set to a first value indicating that the serving cell corresponding to the bit needs to request system broadcast information.
The method of claim 2, wherein the first indication information is used to indicate one of: the cell comprises a PCell, a primary cell, a secondary cell, a PSCell and a PSCell; wherein,

under the condition that the first indication information indicates the PCell, the first indication information is used for indicating that a cell which needs to request system broadcast information is the PCell; or,

under the condition that the first indication information indicates the PSCell, the first indication information is used for indicating that a cell which needs to request system broadcast information is the PSCell; or,

and under the condition that the first indication information indicates the PCell and the PSCell, the first indication information is used for indicating that the cell which needs to request the system broadcast information is the PCell and the PSCell.
The method of claim 2, wherein the first indication information is used to indicate one of: a master cell group MCG, an auxiliary cell group SCG, MCG and SCG; wherein,

under the condition that the first indication information indicates the MCG, the first indication information is used for indicating that the cell which needs to request the system broadcast information is all service cells on the MCG side; or,

under the condition that the first indication information indicates the SCG, the first indication information is used for indicating that the cells needing to request the system broadcast information are all service cells on the SCG side; or,

and under the condition that the first indication information indicates the MCG and the SCG, the first indication information is used for indicating that the cells needing to request the system broadcast information are all service cells on the MCG side and all service cells on the SCG side.
The method of claim 2, wherein,

the first indication information is used for indicating that a cell which needs to request system broadcast information is one or more service cells on an MCG side; and/or the presence of a gas in the gas,

the first indication information is used for indicating that the cell which needs to request the system broadcast information is one or more service cells on the SCG side.
The method of claim 6, wherein,

the first indication information comprises MCG indication information and one or more first serving cell indexes, wherein each first serving cell index in the one or more first serving cell indexes is used for indicating a serving cell on the MCG side which needs to request system broadcast information; and/or the presence of a gas in the gas,

the first indication information comprises SCG indication information and one or more second serving cell indexes, and each second serving cell index in the one or more second serving cell indexes is used for indicating a serving cell at the SCG side which needs to request system broadcast information.
The method of claim 1, wherein the terminal device transmits a system broadcast request message comprising:

and the terminal equipment sends a system broadcast request message to the PSCell.
The method of claim 8, wherein the terminal device sending a system broadcast request message to the PSCell comprises:

and the terminal equipment sends a system broadcast request message to the PSCell through the SRB 3.
The method of claim 8 or 9, wherein the first indication information comprises one or more second serving cell indices; each of the one or more second serving cell indexes is used to indicate a serving cell on the SCG side that needs to request system broadcast information.
The method according to any one of claims 8 to 10, wherein the first indication information is used to indicate that the cell that needs to request the system broadcast information is a PSCell.
The method of any of claims 1-11, wherein the system broadcast request message further carries second indication information indicating a type of SIB each of the one or more cells needs to request.
The method of any of claims 1 to 12, wherein the method further comprises:

the terminal equipment determines a target cell which needs to request system broadcast information and/or an SIB type which the target cell needs to request based on at least one of the following: a PDU conversation mark corresponding to the DRB, at least one service cell mark associated with the logic channel mark, at least one service cell mark associated with the DRB mark, at least one service cell associated with the logic channel mark and at least one service cell associated with the DRB.
The method of any of claims 1-13, wherein the system broadcast request message is a dedicated SIB request dedicatedsabrequest message.
The method of any one of claims 1 to 14, wherein the terminal device is a terminal device in a connected state.
An apparatus for requesting system broadcast information, the apparatus comprising:

a sending unit, configured to send a system broadcast request message, where the system broadcast request message carries first indication information, and the first indication information is used to indicate one or more cells that need to request system broadcast information.
The apparatus of claim 16, wherein the transmitting unit is configured to transmit a system broadcast request message to the PCell.
The apparatus of claim 17, wherein,

the first indication information comprises one or more serving cell indexes; each of the one or more serving cell indexes is used for indicating a cell which needs to request system broadcast information; or,

the first indication information comprises a first bitmap, each bit in the first bitmap corresponds to one serving cell, and the value of the bit is set as a first value to indicate that the serving cell corresponding to the bit needs to request system broadcast information.
The apparatus of claim 17, wherein the first indication information indicates one of: PCell, PSCell, PCell, and PSCell; wherein,

under the condition that the first indication information indicates the PCell, the first indication information is used for indicating that a cell which needs to request system broadcast information is the PCell; or,

under the condition that the first indication information indicates the PSCell, the first indication information is used for indicating that a cell which needs to request system broadcast information is the PSCell; or,

and under the condition that the first indication information indicates the PCell and the PSCell, the first indication information is used for indicating that the cells needing to request the system broadcast information are the PCell and the PSCell.
The apparatus of claim 17, wherein the first indication information indicates one of: MCG, SCG, MCG and SCG; wherein,

under the condition that the first indication information indicates the MCG, the first indication information is used for indicating that the cell which needs to request the system broadcast information is all service cells on the MCG side; or,

under the condition that the first indication information indicates the SCG, the first indication information is used for indicating that the cells needing to request the system broadcast information are all service cells on the SCG side; or,

and under the condition that the first indication information indicates the MCG and the SCG, the first indication information is used for indicating that the cells which need to request the system broadcast information are all serving cells on the MCG side and all serving cells on the SCG side.
The apparatus of claim 17, wherein,

the first indication information is used for indicating that a cell which needs to request system broadcast information is one or more service cells on the MCG side; and/or the presence of a gas in the atmosphere,

the first indication information is used for indicating that the cell which needs to request the system broadcast information is one or more service cells on the SCG side.
The apparatus of claim 21, wherein,

the first indication information comprises MCG indication information and one or more first serving cell indexes, wherein each first serving cell index in the one or more first serving cell indexes is used for indicating a serving cell on the MCG side which needs to request system broadcast information; and/or the presence of a gas in the atmosphere,

the first indication information includes SCG indication information and one or more second serving cell indexes, and each of the one or more second serving cell indexes is used for indicating a serving cell on the SCG side that needs to request system broadcast information.
The apparatus of claim 16, wherein the transmitting unit is configured to transmit a system broadcast request message to the PSCell.
The apparatus of claim 23, wherein the means for transmitting transmits a system broadcast request message to the PSCell via SRB 3.
The apparatus of claim 23 or 24, wherein the first indication information comprises one or more second serving cell indices; each of the one or more second serving cell indexes is used to indicate a serving cell on the SCG side that needs to request system broadcast information.
The apparatus according to any one of claims 23 to 25, wherein the first indication information is used to indicate that a cell that needs to request system broadcast information is a PSCell.
The apparatus of any of claims 16-26, wherein the system broadcast request message further carries second indication information indicating a type of SIB each of the one or more cells needs to request.
The apparatus of any one of claims 16 to 27, wherein the apparatus further comprises:

a determining unit, configured to determine a target cell that needs to request system broadcast information and/or a SIB type that the target cell needs to request based on at least one of: a PDU session identifier corresponding to the DRB, at least one service cell identifier associated with the logical channel identifier, at least one service cell identifier associated with the DRB identifier, at least one service cell associated with the logical channel identifier, and at least one service cell associated with the DRB.
The apparatus of any of claims 16 to 28, wherein the system broadcast request message is a DedicatedSIBRequest message.
The apparatus of any of claims 16 to 29, wherein the terminal device is a connected terminal device.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and execute the computer program stored in the memory, performing the method of any of claims 1 to 15.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 15.
A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 15.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 1 to 15.
A computer program for causing a computer to perform the method of any one of claims 1 to 15.