CN116232539A

CN116232539A - Method, device, terminal and network side equipment for detecting control channel

Info

Publication number: CN116232539A
Application number: CN202111481333.7A
Authority: CN
Inventors: 王俊伟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2023-06-06

Abstract

The invention provides a method, a device, a terminal and network side equipment for detecting a control channel. The method comprises the following steps: the terminal receives a synchronous signal block SSB sent by network side equipment; the terminal determines the detection mode of the target physical downlink control channel PDCCH according to the SSB; the terminal detects the target PDCCH according to the detection mode; wherein, the detection mode includes: based on the detection mode of the extended cyclic prefix ECP or based on the detection mode of the general cyclic prefix NCP. According to the embodiment of the application, the terminal determines the mode of detecting the target PDCCH according to the SSB sent by the network side equipment, wherein the mode comprises the ECP-based detection mode or the NCP-based detection mode, and the flexibility of detecting and scheduling the target PDCCH and the utilization rate of ECP subframes are realized by flexibly configuring the detection mode of the target PDCCH, so that the transmission efficiency of the broadcast multicast service is improved.

Description

Method, device, terminal and network side equipment for detecting control channel

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a terminal, and a network side device for detecting a control channel.

Background

With the development of broadcast multicast services, video streaming media services with higher speed, such as high-definition television, augmented Reality (Augmented Reality, AR)/Virtual Reality (VR) images, are required to be supported, and these services are characterized by a higher data transmission rate. In future service deployment, the high-definition television is transmitted in a broadcasting mode, namely, the related high-definition television service can be received without terminal feedback information.

In the prior art, during an initial access phase of a network, a terminal uses a general cyclic prefix (Normal Cyclic Prefix, NCP) to search for a synchronization signal block (Synchronization Signal and PBCH block, SSB), and detects a physical downlink control channel (Physical downlink control channel, PDCCH), such as Type0-PDCCH, for scheduling access system messages according to the configuration of the SSB. .

Disclosure of Invention

The invention aims to provide a method, a device, a terminal and network side equipment for detecting a control channel, which solve the problem of poor detection flexibility in the existing method for detecting the control channel.

The embodiment of the invention provides a method for detecting a control channel, which comprises the following steps:

the terminal receives a synchronous signal block SSB sent by network side equipment;

The terminal determines the detection mode of the target physical downlink control channel PDCCH according to the SSB;

the terminal detects the target PDCCH according to the detection mode;

wherein, the detection mode includes: based on the detection scheme of the extended cyclic prefix (Extend Cyclic Prefix, ECP) or based on the detection scheme of the normal cyclic prefix NCP.

Optionally, before determining the detection mode of the target physical downlink control channel PDCCH according to the SSB, the method further includes:

the terminal determines a cell indicated by the network side equipment for sending the broadcast multicast service (Multicast and Broadcast Service, MBS) as a special cell according to the SSB;

wherein, the special cell is a cell for transmitting MBS service by adopting a single frequency network (Single Frequency Network, SFN).

Optionally, determining a detection mode of the target physical downlink control channel PDCCH according to the SSB, including;

if the cell indicated by the network side equipment for sending the MBS service is a special cell, determining a detection mode of a target PDCCH according to the SSB.

Optionally, the determining, according to the SSB, that the cell indicated by the network side device to send the broadcast multicast MBS service is a private cell includes:

According to the indication state of the target field of the physical broadcast channel (Physical broadcast channel, PBCH) in the SSB, determining the cell indicated by the network side equipment for sending MBS service as a special cell;

or alternatively, the process may be performed,

and determining the cell indicated by the network side equipment to send the MBS service as a special cell according to the bit carried by the PBCH in the SSB.

Optionally, the determining, according to the indication state of the target field of the PBCH in the SSB, that the cell indicated by the network side device and sending the MBS service is a private cell includes:

determining a cell indicated by the network side equipment to send MBS service as a special cell according to a first state of a system information block (System Information Block, SIB) configuration information field in the PBCH;

or alternatively, the process may be performed,

and determining a cell indicated by the network side equipment for transmitting MBS service as a special cell according to a second state of a subcarrier offset field in the PBCH, wherein the subcarrier offset is a subcarrier offset between a physical resource block (Physical Resource Block, PRB) of a synchronous signal block SSB and a PRB of a control resource set.

Optionally, the determining, according to the bit of the PBCH bearer in the SSB, that the cell indicated by the network side device and sending the MBS service is a private cell includes:

Determining a cell indicated by the network side equipment for sending MBS service as a special cell according to a first bit of a main information block (Master Information Block, MIB) field in the PBCH;

or alternatively, the process may be performed,

and determining the cell indicated by the network side equipment for sending the MBS service as a special cell according to the second bit carrying bit information in the PBCH.

Optionally, the determining, according to the SSB, a detection manner of the PDCCH of the target physical downlink control channel includes:

determining a detection mode of the target PDCCH according to the position relation between the SSB and the target PDCCH;

or alternatively, the process may be performed,

and determining the detection mode of the target PDCCH according to the bit carried by the PBCH in the SSB.

Optionally, the determining the detection mode of the target PDCCH according to the position relationship between the SSB and the target PDCCH includes:

if the first detection time slot of the target PDCCH and the SSB are positioned in the same time slot, determining that the detection mode on the first detection time slot is a detection mode based on NCP;

if the first detection time slot of the target PDCCH and the SSB are positioned in different time slots, determining that the detection mode on the first detection time slot is an ECP-based detection mode.

Optionally, the positional relationship between the SSB and the target PDCCH is determined by:

and determining the position relation between the SSB and the target PDCCH according to the detection time parameter of the target PDCCH.

the network side equipment sends SSB to the terminal, wherein the SSB comprises the following steps: first indication information for indicating a detection mode of the target PDCCH;

wherein, the detection mode includes: an ECP-based detection scheme, or an NCP-based detection scheme.

Optionally, the SSB further comprises: the second indication information is used for indicating the network side equipment to send whether the cell used by the broadcast multicast MBS service is a special cell or not;

wherein, the special cell is a cell for transmitting MBS service by adopting single frequency network SFN.

Optionally, the detection mode is as follows: and when the network side equipment adopts the special cell to send MBS service, the terminal detects the target PDCCH.

Optionally, the second indication information includes:

information indicating a state of a target field of a PBCH in the SSB;

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

Optionally, the target field includes:

SIB configuration information fields in the PBCH;

or alternatively, the process may be performed,

and a subcarrier offset field in the PBCH, wherein the subcarrier offset is a subcarrier offset between a PRB of the SSB and a PRB of the control resource set.

Optionally, the bits include:

a first bit of a MIB field in the PBCH;

or alternatively, the process may be performed,

and a second bit of bit information is carried in the PBCH.

Optionally, the first indication information includes:

the detection time parameter of the target PDCCH is used for determining the position relationship between the SSB and the target PDCCH;

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

An embodiment of the present invention provides a terminal including: memory, transceiver, processor:

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

receiving a synchronous signal block SSB sent by network side equipment;

the processor is configured to read the computer program in the memory and perform the following operations:

determining a detection mode of a target Physical Downlink Control Channel (PDCCH) according to the SSB; detecting the target PDCCH according to the detection mode;

Wherein, the detection mode includes: based on the detection mode of the extended cyclic prefix ECP or based on the detection mode of the general cyclic prefix NCP.

Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

according to the SSB, determining a cell indicated by the network side equipment for sending the broadcast multicast MBS service as a special cell;

determining a cell indicated by the network side equipment to send MBS service as a special cell according to the indication state of a target field of a Physical Broadcast Channel (PBCH) in the SSB;

or alternatively, the process may be performed,

determining a cell indicated by the network side equipment for sending MBS service as a special cell according to a first state of a System Information Block (SIB) configuration information field in the PBCH;

or alternatively, the process may be performed,

and determining a cell indicated by the network side equipment for transmitting MBS service as a special cell according to a second state of a subcarrier offset field in the PBCH, wherein the subcarrier offset is a subcarrier offset between a physical resource block PRB of a synchronous signal block SSB and a PRB of a control resource set.

determining a cell indicated by the network side equipment for sending MBS service as a special cell according to a first bit of a Master Information Block (MIB) field in the PBCH;

or alternatively, the process may be performed,

Or alternatively, the process may be performed,

The embodiment of the invention provides network side equipment, which comprises the following components: memory, transceiver, processor:

transmitting an SSB to a terminal, the SSB comprising: first indication information for indicating a detection mode of the target PDCCH;

Optionally, the SSB further comprises: the second indication information is used for indicating the network side equipment to send whether the cell used by the MBS service is a special cell or not;

Optionally, the second indication information includes:

information indicating a state of a target field of a PBCH in the SSB;

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

Optionally, the target field includes:

SIB configuration information fields in the PBCH;

or alternatively, the process may be performed,

Optionally, the bits include:

a first bit of a MIB field in the PBCH;

or alternatively, the process may be performed,

and a second bit of bit information is carried in the PBCH.

Optionally, the first indication information includes:

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

An embodiment of the present invention provides an apparatus for detecting a control channel, including:

a first receiving unit, configured to receive a synchronization signal block SSB sent by a network side device;

a first determining unit, configured to determine, according to the SSB, a detection mode of a target physical downlink control channel PDCCH;

the detection unit is used for detecting the target PDCCH according to the detection mode;

a first sending unit, configured to send an SSB to a terminal, where the SSB includes: first indication information for indicating a detection mode of the target PDCCH;

An embodiment of the invention provides a processor readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a method of detecting a control channel as described above.

The technical scheme of the invention has the beneficial effects that:

according to the embodiment of the application, the terminal determines the mode of detecting the target PDCCH according to the SSB sent by the network side equipment, wherein the mode comprises the ECP-based detection mode or the NCP-based detection mode, and the flexibility of detecting and scheduling the target PDCCH and the utilization rate of ECP subframes are realized by flexibly configuring the detection mode of the target PDCCH, so that the transmission efficiency of the broadcast multicast service is improved.

Drawings

FIG. 1 shows a schematic representation of the SSB structure of NR;

FIG. 2 shows one of the Type0-PDCCH detection time slots;

FIG. 3 shows a second schematic diagram of a Type0-PDCCH detection time slot; the method comprises the steps of carrying out a first treatment on the surface of the

Fig. 4 shows a schematic diagram of NCP slots when the subcarrier spacing SCS is 15 KHz;

fig. 5 shows a schematic diagram of ECP time slots when the subcarrier spacing SCS is 15 KHz;

FIG. 6 is a flow chart of a method for detecting a control channel according to an embodiment of the present invention;

fig. 7 is a schematic diagram showing bits in PBCH information according to an embodiment of the present invention;

FIG. 8 is a diagram illustrating a third Type0-PDCCH detection time slot according to an embodiment of the present invention;

FIG. 9 is a diagram illustrating a Type0-PDCCH detection time slot according to an embodiment of the present invention;

FIG. 10 is a second flow chart of a method for detecting a control channel according to an embodiment of the invention;

Fig. 11 is a schematic structural diagram of an apparatus for detecting a control channel according to an embodiment of the present invention;

FIG. 12 is a second schematic diagram of an apparatus for detecting a control channel according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a terminal according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the invention. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

In the embodiment of the invention, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In describing embodiments of the present invention, some concepts used in the following description are first explained.

And (3) a step of: SSB structure.

As shown in fig. 1, SSB includes: primary synchronization signal (Primary Synchronous Signal, PSS)/secondary synchronization signal (Second Synchronous Signal, SSS)/physical broadcast channel (Physical broadcast channel, PBCH), in addition to the symbols following PSS and SSS being PBCH, the SSS also has PBCH data at both ends; and when the UE searches the cell, carrying out synchronous search according to the PSS/SSS, and receiving the PBCH after the synchronous search is completed. In the prior art, the terminal detects SSB by using NCP all the time, and in order to reduce the complexity of the terminal, it can be considered that: SSBs are transmitted in NCP even in dedicated carriers. For SSB transmission in the low frequency band, the number of SSBs transmitted by the base station may be 1 or 8, but at most not more than 8.

And II: type0-PDCCH control channel detection.

For the existing 5G network, a terminal firstly detects SSB (specifically, detects a synchronous signal and then analyzes PBCH), wherein the PBCH of the SSB indicates the receiving parameters of Type 0-PDCCH; and the terminal detects the PDCCH and the scheduled PDSCH data according to the receiving parameters of the Type0-PDCCH, so as to acquire the system message in the 5G cell. Optionally, the Type0-PDCCH contains the following reception parameters:

(1) Type0-PDCCH reception parameter 1: type0-PDCCH control resource set (CORSET # 0).

The indication information includes the Number of symbols occupied by CORESET #0 in the time domain (Number of Symbols), the Number of Resource Blocks (RBs) occupied in the frequency domain (Number of RBs), and the frequency domain offset (offset) of CORESET #0 and SSB. The relevant configuration is fixed in the protocol in the form of a table, and the base station determines configuration information by indicating a row index in the PBCH, as shown in table 1:

table 1: control resource set (CORESET # 0) table.

(2) Type0-PDCCH reception parameter 2: type0-PDCCH detection opportunity (Monitor emission, MO).

The reception parameter 2 indicates the time domain position of the terminal in detecting the PDCCH, i.e. on which slots and on which symbols the Type0-PDCCH needs to be detected. This information appears in the protocol in the form of a configuration table (as shown in table 2), the base station indicates a row index, and the terminal determines the content of the configuration by means of the row index.

As shown in table 2, where M is a parameter set for calculating the location of Type0-PDCCH using a formula. O is a parameter (which can be understood as the number of slots relative to the 10ms radio frame boundary) in calculating the Type0-PDCCH slot, and i represents a row index number.

Table 2: PDCCH detection timing configuration table.

The location and method of detecting Type0-PDCCH are illustrated by using index 0 (i.e., SSB 0) in table 1, and index 0 (i.e., offset 0) and index 2 (i.e., offset 2) in table 2.

As shown in fig. 2, with index 0 in table 1, index 0 in table 2, i.e., the cell has only one SSB transmission (SSB-0), and the offset when calculating Type0-PDCCH slots is 0. Suppose that 2 Type 0-PDCCHs of two consecutive slots need to be detected:

on the base station side: one SSB is configured in one slot, the index of the SSB is 0, the first symbol of Type0-PDCCH related to SSB 0 is on symbol 0 (i.e., #0 in fig. 2), and# 0 is located in slot0, and because the offset of the first slot and SSB 0 is 0, the slots of two consecutive Type 0-PDCCHs are slot0 and slot 1, i.e., n0=0, and n1=1.

Terminal side: after the terminal searches SSB, after receiving SSB, according to the indication parameter of SSB, the first symbol of Type0-PDCCH is on symbol 0, and the offset of the first time slot and SSB 0 is 0, after determining the value of n0, the UE can be determined to detect Type0-PDCCH on time slots slot0 and slot 1 due to the need of detecting 2 Type 0-PDCCHs of two continuous time slots.

As shown in fig. 3, with index 0 in table 1, index 2 in table 2, i.e., the cell has only one SSB transmission (SSB-0), and the offset when calculating Type0-PDCCH slots is 2. Suppose that 2 Type 0-PDCCHs of two consecutive slots need to be detected:

Base station side: one SSB is configured in one slot, the index of the SSB is 0, the first symbol of the Type0-PDCCH related to the SSB 0 is on the symbol 0 (i.e., #0 in fig. 2), the #0 is located in the slot 0, and because the offset of the first slot and the SSB 0 is 2, the slots of two consecutive Type 0-PDCCHs should be located in the position where the slot 0 is offset by two slots, which is slot 2 and slot 3, i.e., n0=2, n1=3.

Terminal side: after receiving the SSB, the terminal searches, according to the indication parameter of the SSB, the first symbol of the Type0-PDCCH is on the symbol 0, and the offset of the first time slot and the SSB 0 is 2, after determining the value of n0, the UE detects the Type0-PDCCH on the time slots slot 2 and slot 3 because 2 Type 0-PDCCHs of two continuous time slots need to be detected, and the time slots of the two continuous Type 0-PDCCHs are located at the positions of the offset of slot 0 by two time slots.

Thirdly,: ECP and NCP.

The NR technology adopts an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) technology, in order to overcome the inter-symbol interference caused by multipath transmission, a Cyclic Prefix (CP) is inserted before the transmitted data symbol, and the longer the CP time domain, the stronger the multipath interference resistance. Symbols/slots using CPs of a general length, called NCP symbols/slots (general CP slots); the symbols/slots using a longer length CP are called ECP symbols/slots (extended CP slots). Schematic diagrams of NCP and ECP with a subcarrier spacing of 15KHz are shown in fig. 4 and 5.

Wherein when scs=15 KHz, the length of 1 slot is 1ms, when the symbol included in the slot is NCP, one slot includes 14 symbols, and when the symbol included in the slot is ECP, one slot includes 12 symbols.

Fourth, the method comprises the following steps: terrestrial broadcast (FTA) and dedicated cells (dedicated cells).

FTA is a multicast broadcast (Multi-cast Broadcast Service, MBS) service transmission mode, and is mainly characterized in that a terminal can directly receive without authentication. When the operator network is deployed, a single deployment mode is often adopted, that is, the cell supporting the FTA does not support unicast service with the traditional meaning, and only downlink MBS service is sent. Meanwhile, in order to improve the transmission performance of the MBS service, the SFN technology is adopted to transmit broadcast data.

Mode of implementation for SFN transmission of FTA traffic there are two possible modes:

(1): the method adopts the mode of mixing cells: i.e. in one cell, both unicast traffic data and broadcast traffic scheduling are supported. Typically, unicast is transmitted over NCP slots/symbols, and broadcast traffic is transmitted over ECP slots/symbols. The advantage of this approach is that terminals that need to receive both unicast and broadcast need only camp on one cell. Unicast and broadcast resources may be dynamically shared. The disadvantages are: the base station is complex to operate, and when upgrading to the SFN network, the base station has influence on the existing network and the existing terminal, namely the compatibility problem exists.

(2): mode of private cell: namely, the base station sets a cell specially for the FTA broadcasting service adopting the SFN transmission mode, and only transmits the broadcasting service and does not transmit the unicast service. The method has the advantages that the base station is simple to upgrade, and the existing network and the terminal are not affected, namely the compatibility problem does not exist. The disadvantage is that the UE that needs to receive the broadcast service needs to camp on the dedicated cell of the SFN alone.

It should be noted that:

a: in the above manner (2), the resources of the private cell may be semi-statically shared by the unicast cell, for example, the private cell and the unicast cell may be time-divided on a 20MHz carrier, and the time-division relationship may be configured by semi-static configuration (such configuration is already supported in R15);

b: in order to increase the spectrum resource utilization of the private cell, as many slots as possible of the ECP configuration are required to transmit more broadcast service data.

In order to solve the problems that in the prior art, when a terminal detects a Type0-PDCCH, the transmission efficiency of broadcast multicast service is reduced due to detection according to the symbol of NCP, and the flexibility of detection scheduling of the Type0-PDCCH and the utilization rate of ECP subframes cannot be effectively considered, the embodiment of the invention provides a method for detecting a control channel.

It should be noted that, in the embodiment of the present application, taking the subcarrier scs=15 KHz of the Type0-PDCCH as an example, other subcarrier spacing parameters may be applicable, such as scs=30 KHz, scs=60 KHz, scs=120 KHz, scs=240 KHz, scs=480 KHz, and scs=960 KHz.

As shown in fig. 6, the method for detecting a control channel according to the embodiment of the present invention specifically includes the following steps:

step 61: the terminal receives a synchronous signal block SSB sent by network side equipment.

Step 62: and the terminal determines the detection mode of the PDCCH of the target physical downlink control channel according to the SSB. Wherein, the detection mode includes: based on the detection mode of the extended cyclic prefix ECP or based on the detection mode of the general cyclic prefix NCP.

Step 63: and the terminal detects the target PDCCH according to the detection mode.

In this embodiment, the target PDCCH may be a Type0-PDCCH. The SSB may include related information for indicating a detection mode of the target PDCCH. The ECP-based detection mode refers to: a detection mode for detecting according to the symbol structure of the ECP; the detection mode based on NCP refers to: the detection method is to detect according to the symbol structure of NCP. The symbol structure of the ECP and the symbol structure of the NCP are shown in fig. 4 and 5.

The target PDCCH can be transmitted on an ECP symbol or an NCP symbol, and the network side equipment flexibly indicates the CP type of the symbol where the target PDCCH is positioned by configuring a detection mode corresponding to the transmission mode of the target PDCCH. After the terminal determines the detection mode of the target PDCCH according to the SSB, the detection time of the target PDCCH can be obtained, the problem of flexible deployment of the detection time of the target PDCCH is solved, and meanwhile, the utilization rate of ECP time slots can be increased, so that the time slot utilization rate of a special cell is improved.

According to the embodiment of the application, the terminal determines the mode of detecting the target PDCCH according to the SSB sent by the network side equipment, wherein the mode comprises the detection mode based on ECP or the detection mode based on NCP, and the flexibility of detecting and scheduling the target PDCCH and the maximization of the utilization rate of ECP subframes are realized, so that the transmission efficiency of the broadcast multicast service is improved.

As an optional embodiment, before determining the detection mode of the target physical downlink control channel PDCCH according to the SSB, the method further includes:

the terminal determines a cell indicated by the network side equipment for sending the broadcast multicast MBS service as a special cell (cell) according to the SSB; wherein, the special cell is a cell for transmitting MBS service by adopting single frequency network SFN. In this embodiment of the present application, the MBS service may include: one of a broadcast service, a multicast service, a broadcast service, and a multicast service.

Optionally, determining a detection mode of the target physical downlink control channel PDCCH according to the SSB, including; if the cell indicated by the network side equipment for sending the MBS service is a special cell, determining a detection mode of a target PDCCH according to the SSB.

In this embodiment, the SSB may further include indication information for indicating whether the cell used by the network side device to send the MBS service is a dedicated cell. After receiving the SSB, the terminal determines whether a cell indicated by the network side equipment for sending MBS service is a special cell according to the SSB, namely, determines whether the network side equipment adopts an SFN special cell for sending MBS service.

And under the condition that the terminal determines that the network side equipment adopts a special cell to send MBS service, determining that the detection mode of the target PDCCH is an ECP-based detection mode or an NCP-based detection mode.

In this embodiment, when the network side device uses the private cell to send the MBS service, the target PDCCH (e.g. Type 0-PDCCH) may be transmitted on the ECP symbol or the NCP symbol, the network side device indicates the detection mode of the target PDCCH through the SSB, and the terminal detects the target PDCCH according to the indicated detection mode, so as to achieve the flexibility of detection scheduling of the target PDCCH. When the special cell is adopted to send MBS service, in order to improve the frequency spectrum utilization rate, ECP subframes/time slots are used for service transmission as much as possible, the network side equipment can configure the subframes/time slots for sending MBS service by adopting the special cell of SFN and instruct the terminal to carry out the detection mode of target PDCCH detection, thereby realizing the improvement of the utilization rate of ECP subframes, further improving the frequency spectrum resource utilization rate of the special cell and improving the transmission efficiency of broadcast multicast service.

Optionally, the determining, according to the SSB, that the cell indicated by the network side device to send the MBS service is a private cell includes:

mode 1: and determining the cell indicated by the network side equipment for sending the MBS service as a special cell according to the indication state of the target field of the physical broadcast channel PBCH in the SSB. The target field may be an existing field of the PBCH, for example: the reserved field with the row index of 15 shown in table 1 indicates that the cell used by the network side device to send the broadcast multicast service is a private cell. The indication state of the target field may refer to: for indicating the bit combination status of the target field.

Or alternatively, the process may be performed,

mode 2: and determining the cell indicated by the network side equipment to send the MBS service as a special cell according to the bit carried by the PBCH in the SSB. For example: by in PBCH

The reserved bit indicates that a cell used by the network side device to send the broadcast multicast service is a private cell.

In the embodiment of the present application, for the foregoing mode 1, the network side device sets the reservation state of the existing target field (for example, index 15 in table 1) so as to indicate whether the cell transmitting the MBS service is a private cell. Wherein the target field in the PBCH may include a plurality of bits that may be combined to indicate different configurations of the target PDCCH, when indicating the configurations of the target PDCCH, there may be some bit combinations that do not have corresponding indication information content (i.e., the bit has been used, but some or more of the bit combinations do not indicate information content), for example: the pdcch-ConfigSIB field includes an indication state of four bit combinations in total: "00", "01", "10", "11", wherein "00", "01", "10" each indicate corresponding information, and the combination status "11" does not indicate information content, the "11" status may be used to indicate whether the cell is a dedicated cell, for example: when the terminal detects the "11" state of the target field, it is considered that the default row index of Coreset #0 indicated by PBCH is 15, and the cell is a private cell.

For the method 2, the pbch includes a plurality of bits, wherein a part of bits is used to indicate an existing field (for example, MIB field), and there may be a part of bits not indicated field (the part of bits is not used, i.e., reserved bits), and the reserved bits may be configured to indicate whether a cell transmitting MBS service is a dedicated cell. The following is a description of specific examples.

Alternatively, for the mode 1, the cell used for transmitting the MBS service may be indicated as a dedicated cell by the reserved state of the existing field of the PBCH. The reserved state of the existing field refers to that in the existing protocol, 1 or more bit combinations (e.g. "00", "01", "10", "11") are used to indicate an information configuration index or value (e.g. N bits may represent 2) ^N The individual states, but only a portion of the states are defined by the protocol, the other states being reserved, for which legacy UEs are considered illegal or for which the base station is not to configure the reserved state.

For the method 1, the determining, according to the indication state of the target field of the PBCH in the SSB, that the cell indicated by the network side device to send the MBS service is a private cell may include:

1) And determining the cell indicated by the network side equipment for sending the MBS service as a special cell according to the first state of the SIB configuration information field in the system information block in the PBCH. The first state may be one bit combination state of a plurality of bit combinations for indicating SIB configuration information fields, which may be: the PDCCH-ConfigSIB field, i.e., a configuration that the terminal receives the target PDCCH through the PDCCH-ConfigSIB, is assumed to include four states by a bit combination indicating the PDCCH-ConfigSIB field: "00", "01", "10", "11", wherein the state "11" does not have corresponding indication information content, it is possible to indicate whether the cell is a private cell by using the state "11".

Or alternatively, the process may be performed,

2) According to the subcarrier offset (K in the PBCH _SSB ) And determining a cell indicated by the network side equipment for transmitting MBS service as a special cell, wherein the subcarrier offset is the subcarrier offset between a physical resource block PRB of the synchronous signal block SSB and a PRB of the control resource set. The saidThe second state may be one of a plurality of bit combinations for indicating the subcarrier offset field, assuming that K is indicated _SSB The bit combination of the field includes four states: "00", "01", "10", "11", wherein the state "00" does not have corresponding indication information content, it is possible to indicate whether the cell is a private cell by using the state "00".

The implementation process of the method for determining the cell indicated by the network side device and transmitting the broadcast multicast service as the private cell according to the indication state of the target field of the PBCH in the mode 1 is described below by a specific embodiment.

Example one: taking as an example, a cell used by the network side device to send the MBS service is indicated to be a special cell according to the first state of the pdcch-ConfigSIB field in the MIB.

The PDCCH-ConfigSIB may be used to indicate a configuration in which the terminal receives Type0-PDCCH, accounting for 8 bits in total. Wherein 4 bits are used to indicate configuration information of CORESET #0 (as in table 1), and another 4 bits are used to indicate detection opportunities of Type0-PDCCH (as in table 2). Of the 16-row indices of table 1, only 15 rows are valid, and the 16 th row (index 15) is a reserved bit, i.e., the bit combination corresponding to the 16 th row does not indicate information content. . The content in the index of line 16 may be defined as shown in table 3:

table 3: CORESET #0 table (configuration of reserved bits).

/>

As shown in table 3, assuming that 4 bits for indicating coreset#0 are "0, 1, 2, 3", and 4 bits are combined in pairs, 16 combined bit states (corresponding to indexes 0 to 15, respectively) can be obtained, when the terminal detects the PBCH, if it detects that the bit combination state for indicating the control resource set (coreset#0) is "11", it can default to be a row index indication of 15, and the terminal can understand that the cell used for transmitting the MBS service at this time is a dedicated cell. The RB number, symbol number, and offset in table 3 may be configured as other parameters, and are not limited thereto.

Example two: to pass through K in PBCH _SSB The second state of the field indicates that the cell used by the network side device to send the MBS service is a private cell as an example.

Wherein K is _SSB The offset of the subcarriers between PRBs representing SSB and CORESET #0 is represented by 5 bits (32 bit combination states can be represented). The index number indicates the state of each bit combination, and then the index number comprises indexes 0 to 31, wherein 0 to 23 calculate the offset of the subcarrier according to the numerical value; and when the value is greater than 23, indicating the Type0-PDCCH which is not associated with the SSB. Further, the protocol also specifies that when K _SSB 24 to 29, the SSB frequency domain location of the associated Type0-PDCCH is indicated. K (K) _SSB 30 (i.e., row 31) is in a reserved state, so that row 31 and row 32 (i.e., K) _SSB Values of 30 and 31) of the index, as shown in table 4:

table 4: k (K) _SSB Numerical meaning.

As shown in table 4, when the terminal detects PBCH, K _SSB When the result of the calculation is 30 or 31, the terminal can understand that the cell is a private cell. And according to preset K _SSB The calculation method for calculating the position of the initial Resource Element (RE) of the PRB of coreset#0 is the same as the prior art, and will not be described here in detail.

The implementation process of the method for determining the cell indicated by the network side device and used for sending the MBS service as the private cell according to the bit carried by the PBCH in the mode 2 is described below by a specific embodiment.

For the method 2, the determining, according to the bit carried by the PBCH in the SSB, the cell indicated by the network side device to send the MBS service as the private cell includes:

1) Determining a cell indicated by the network side equipment for sending MBS service as a special cell according to a first bit of a Master Information Block (MIB) field in the PBCH; the first bit may be: and setting reserved bits of the existing MIB field to enable the reserved bits to indicate that a cell sending MBS service is a bit of a special cell, wherein the reserved bits are bits which are not used for indicating information.

Or alternatively, the process may be performed,

2) And determining the cell indicated by the network side equipment for sending the MBS service as a special cell according to the second bit carrying bit information in the PBCH. The second bit may be: and setting reserved bits contained in the existing PBCH to enable the reserved bits to indicate that a cell for transmitting MBS service is a bit of a special cell, wherein the reserved bits are bits which are not used for indicating information.

For low band operation, the reserved bits may include the following:

a: reserved information bits of MIB field in PBCH;

b: PBCH carries bit information

The reserved bit, wherein a is the total length of MIB information (may be a=24), and by setting any one bit or two bits of the above information, the reserved bit may be used to instruct the network side device whether to send a cell used by an MBS service to a dedicated cell.

As shown in fig. 7, the total length of the PBCH information is 0 to a+7, where a= 24,0 to a represent the length of MIB information, a-1 is a reserved bit of the MIB field, a+6 and a+7 are reserved bits of PBCH bearer bit information, and by setting one or two bits of a-1, a+6 and a+7, the PBCH bearer bit information can be used to indicate whether a cell used by the network side device to send an MBS service is a dedicated cell.

For example: by aligning

One of the reserved bits orTwo bits are set to indicate if the network side equipment sends MBS service using cell special cell>

And/or when

And when the cell in which the terminal is located is a special cell, namely the cell used by the network side equipment for sending MBS service is the special cell.

As an optional embodiment, the determining, according to the SSB, a detection manner of the PDCCH of the target physical downlink control channel includes:

mode (1): determining a detection mode of the target PDCCH according to the position relation between the SSB and the target PDCCH;

or alternatively, the process may be performed,

mode (2): and determining the detection mode of the target PDCCH according to the bit carried by the PBCH in the SSB.

Optionally, for the mode (1), the determining a detection mode of the target PDCCH according to the positional relationship between the SSB and the target PDCCH includes:

In this embodiment, the first detection slot may be the first slot when the terminal needs to detect two or more consecutive slots. The positional relationship between the SSB and the target PDCCH may be determined according to a detection timing parameter (e.g., offset) of the target PDCCH. Optionally, the positional relationship between the SSB and the target PDCCH is determined by: and determining the position relation between the SSB and the target PDCCH according to the detection time parameter of the target PDCCH.

Taking 2 target PDCCHs of which two continuous time slots (n 0 and n 1) need to be detected by a terminal as an example, namely n0 is the first detection time slot, and when n0 and the SSB are positioned in the same time slot, as shown in a table 2, the offset is 0 or 5, the target PDCCHs on n0 are detected by adopting a detection mode based on NCP; the target PDCCH on n1 is detected by adopting an ECP-based detection mode, namely the target PDCCH is sent in the form of NCP symbols on an n0 time slot, and is sent in the form of ECP symbols on an n1 time slot.

When n0 and the SSB are not in the same time slot, as shown in table 2, and the offset is 2 or 7, the target PDCCH on n0 is detected by using the ECP-based detection method, and the target PDCCH on n1 may also be detected by using the ECP-based detection method. I.e. the target PDCCH is transmitted in the form of ECP symbols on both the n0 slot and the n1 slot.

The method can realize the maximization of the utilization rate of the ECP sub-frames and improve the utilization rate of the frequency spectrum resources of the special cell, thereby improving the transmission efficiency of the broadcast multicast service.

For the method (2), determining the detection method of the target PDCCH according to the bit carried by the PBCH in the SSB may include:

determining a detection mode of the target PDCCH according to a third bit of the MIB field in the PBCH, where the third bit may be: setting reserved bits without indication information in the existing MIB field to enable the reserved bits to indicate the bit of the detection mode of the target PDCCH; or, determining the detection mode of the target PDCCH according to a fourth bit carrying bit information in the PBCH, where the fourth bit may be: and setting reserved bits without indication information in the existing PBCH to enable the reserved bits to indicate the bit of the detection mode of the target PDCCH. The reserved bits of the MIB field and reserved bits of the PBCH carrying bit information are shown in fig. 6, that is, one or two bits of a-1, a+6, a+7 may be used to indicate a detection manner of the target PDCCH, which is not described herein.

In the following, a specific embodiment is used to describe the implementation procedure of the detection mode of the target PDCCH in the mode (1), according to the positional relationship between the SSB and the target PDCCH.

Optionally, if the terminal determines that the cell used by the network side device to send the MBS service is a general cell, the terminal may detect all target PDCCHs by using NCP according to the existing method. If the terminal determines that the cell used by the network side device to send the MBS service is a private cell, the method can be used for determining the CP type of the target PDCCH, namely determining the detection mode of the target PDCCH.

Taking the target PDCCH as Type0-PDCCH, the terminal needs to detect two Type0-PDCCH of two consecutive time slots (n 0 and n 1) as an example, and determining the detection timing of the Type0-PDCCH of the detected SSB according to the detection timing parameters of the Type0-PDCCH, including the following two cases:

case 1: when the offset=0 or the offset=5 configured in table 2 (i.e., the detection slot n0 of the first Type0-PDCCH of SSB and SSB are in the same slot), then:

type0-PDCCH detection (first detection opportunity) on n0 is detected by adopting a detection mode based on NCP;

type0-PDCCH detection (second detection opportunity) on n1 is detected by using an ECP-based detection mode.

Case 2: when the offset=2 or the offset=7 configured in table 2 (i.e., the detection slot n0 of the first Type0-PDCCH of SSB and SSB are not in the same slot), then:

Type0-PDCCH detection (first detection opportunity) on n0 is detected by adopting an ECP-based detection mode;

For case 1 above, the Type0-PDCCH detection slot when offset=0 is as shown in fig. 8; for case 2 above, the Type0-PDCCH detection slot when offset=2 is shown in fig. 9. The method can realize the maximization of the utilization rate of the ECP sub-frames and improve the utilization rate of the frequency spectrum resources of the special cell, thereby improving the transmission efficiency of the broadcast multicast service.

In the following description of the embodiment (2), the implementation process of the detection mode of the target PDCCH is determined according to the bit carried by the PBCH in the SSB.

In this embodiment, bit information may be carried for the PBCH

One bit or a combination of two bits in the reserved bits is set to indicate whether a cell used by the network side equipment for sending the MBS service is a special cell or not, and indicate a detection mode of the target PDCCH.

Example one: by passing through

Indicating whether the cell is a private cell by +.>

The detection method of the target PDCCH is indicated as shown in table 5:

table 5: by means of

Judging private cell, - >

And judging the detection mode. />

For example: assume that the terminal needs to detect two Type 0-PDCCHs of two consecutive slots, and for Table 5, assume that the transmission is performed by

Indicating that the cell is a private cell by +.>

Indicating the determination mode of the Type0-PDCCH in two slots (n 0 and n 1), then:

if it is

Detecting the Type0-PDCCH in the n0 time slot by adopting a detection mode based on NCP, and detecting the Type0-PDCCH in the n1 time slot by adopting a detection mode based on ECP;

if it is

And detecting the Type0-PDCCH in the n0 time slot by adopting an ECP-based detection mode, and detecting the Type0-PDCCH in the n1 time slot by adopting an ECP-based detection mode.

Example two: by passing through

Indicating whether the cell is a private cell by +.>

The detection method of the target PDCCH is indicated as shown in table 6:

table 6: by means of

Judging private cell, ->

And judging the detection mode.

For example: assume that the terminal needs to detect two Type 0-PDCCHs of two consecutive slots, for Table 6, assume that

Indicating that the cell is a private cell by +.>

if it is

Detecting the Type0-PDCCH in the n0 time slot by adopting an ECP-based detection mode, and detecting the Type0-PDCCH in the n1 time slot by adopting an ECP-based detection mode;

If it is

Then, the Type0-PDCCH in the n0 time slot is detected by adopting a detection mode based on NCP, and the Type0-PDCCH in the n1 time slot is detected by adopting a detection mode based on ECP.

Example three: by passing through

And->

Indicates whether the cell is a private cell (either bit is 1) and by +.>

Indicating the detection mode of the target PDCCH in the n0 time slot by +.>

The detection method of the target PDCCH in the n1 slot is indicated as shown in table 7:

table 7: by means of

And->

And combining and judging the special cell and the detection mode. />

For example: assume that the terminal needs to detect two Type 0-PDCCHs of two consecutive slots, and for Table 7, assume that

And

the combination indicates that the cell is a private cell (either bit of 1 indicates that the cell is a private cell) and by +.>

Indicating the detection mode of Type0-PDCCH in the first time slot (n 0), and ++>

And indicating the detection mode of the Type0-PDCCH in the second time slot (n 1). Then:

if it is

if it is

Detecting the Type0-PDCCH in the n0 time slot by adopting an ECP-based detection mode, and detecting the Type0-PDCCH in the n1 time slot by adopting an NCP-based detection mode;

If it is

In this embodiment, the terminal determines, according to the SSB, that a cell used by the network side device to send the broadcast multicast service is a dedicated cell, and determines, according to the SSB, a detection mode of the target PDCCH in different timeslots, and under a deployment condition of the dedicated cell, flexibly indicates a CP type of a symbol where the target PDCCH is located, so as to achieve a maximum utilization rate of the ECP timeslot, thereby not only solving a problem of flexible deployment of detection opportunities of the target PDCCH, but also increasing a proportion of the ECP timeslot, thereby improving a timeslot utilization rate of the dedicated cell and improving transmission efficiency of the broadcast multicast service.

Optionally, in the embodiment of the present application, when the terminal determines, according to the SSB, that the cell indicated by the network side device and sending the broadcast multicast service is a dedicated cell, the network side device may only configure 1 NCP timeslot to transmit the target PDCCH (for example, timeslot n 0) by default, where the NCP timeslot and the SSB are located in the same timeslot (for example, offset O is 0 or 5), so that by reducing the detection opportunity of the target PDCCH (that is, from the original 2 timeslots to 1 timeslot), the purpose of increasing the configuration of the ECP timeslots is achieved, the timeslot utilization of the dedicated cell is improved, and the broadcast multicast service transmission efficiency is improved.

As shown in fig. 10, the embodiment of the present application further provides a method for detecting a control channel, including:

step 101, network side equipment sends an SSB to a terminal, where the SSB includes: first indication information for indicating a detection mode of the target PDCCH;

The target PDCCH can be transmitted on an ECP symbol or an NCP symbol, and the network side equipment indicates a detection mode of the terminal for the target PDCCH through SSB, namely if the target PDCCH is transmitted on the ECP symbol, the terminal detects the target PDCCH through SSB by using the detection mode based on ECP; and if the target PDCCH is transmitted on the NCP symbol, the terminal is instructed to detect the target PDCCH by the SSB by using a detection mode based on NCP.

After the terminal determines the detection mode of the target PDCCH according to the SSB, the detection time of the target PDCCH can be obtained, the problem of flexible deployment of the detection time of the target PDCCH is solved, and meanwhile, the utilization rate of ECP time slots can be increased, so that the time slot utilization rate of a special cell is improved.

According to the embodiment of the application, the network side equipment can configure the detection mode of the terminal to the target PDCCH according to the transmission mode of the target PDCCH, so that the flexibility of detection and scheduling of the target PDCCH and the maximization of the ECP subframe utilization rate are realized, and the transmission efficiency of the broadcast multicast service is improved.

As an alternative embodiment, the SSB further includes: the second indication information is used for indicating the network side equipment to send whether the cell used by the MBS service is a special cell or not; wherein, the special cell is a cell for transmitting MBS service by adopting single frequency network SFN.

In this embodiment, the network side device may also indicate, through SSB, whether the cell used for transmitting MBS services is a dedicated cell. After receiving the SSB, the terminal determines whether a cell indicated by the network side equipment for sending MBS service is a special cell according to the SSB, namely, determines whether the network side equipment adopts an SFN special cell for sending MBS service.

And under the condition that the terminal determines that the network side equipment adopts a special cell to send MBS service, determining that the detection mode of the target PDCCH is an ECP-based detection mode or an NCP-based detection mode. When the network side equipment adopts a special cell to send MBS service, the target PDCCH can be transmitted on an ECP symbol or an NCP symbol, the network side equipment can indicate the detection mode of the target PDCCH through SSB, and the terminal detects the target PDCCH according to the indicated detection mode, so that the flexibility of detection scheduling of the target PDCCH can be realized. By configuring the detection mode of the target PDCCH, the utilization rate of ECP subframes can be improved, so that the utilization rate of spectrum resources of a special cell is improved, and the transmission efficiency of broadcast multicast service is improved.

Optionally, the second indication information includes: information indicating a state of a target field of a PBCH in the SSB; or, the information of the bit carried by the PBCH in the SSB.

In this embodiment, the network side device indicates the cell used by the network side device to send the MBS service to be a private cell by setting the reserved field of the row index 15 shown in table 1, for example, through the indication state of the target field of the PBCH in the SSB or the bit carried by the PBCH in the SSB (for example, through the reserved field in the PBCH

The reserved bit indicates that a cell used by the network side equipment for transmitting the MBS service is a special cell, and indicates whether the cell used for transmitting the MBS service is the special cell or not.

Optionally, the target field includes: SIB configuration information fields in the PBCH (e.g., pdfch-ConfigSIB fields in MIB); alternatively, a subcarrier offset field (e.g., K _SSB A field) that is a subcarrier offset between PRBs of SSB and PRBs of control resource set.

In this embodiment, the terminal determines, according to a first state of a SIB configuration information field of a system information block in the PBCH, a cell indicated by the network side device to send an MBS service to be a dedicated cell; or, the terminal performs the transmission according to the subcarrier offset (K _SSB ) And determining the cell indicated by the network side equipment for sending the MBS service as a special cell according to the second state of the field. The terminal determines whether the cell used by the network equipment for sending MBS service is a special cell or not according to the target fieldThe bulk implementation process is not described in detail herein.

Optionally, the bits include: a first bit of a MIB field in the PBCH; or, a second bit of the bit information is carried in the PBCH. The first bit may be a bit indicating whether a cell transmitting the MBS service is a dedicated cell after setting a reserved bit of the MIB field. The second bit may be a bit that indicates whether the cell transmitting the MBS service is a dedicated cell after setting a reserved bit in the PBCH.

In this embodiment, the reserved bits may include the following:

a: reserved bits of MIB field in PBCH;

b: PBCH carries bit information

And reserving bits, wherein A is the total length of MIB information (which can be A=24), and setting any one bit or two bits of the information can enable the network side equipment to indicate whether a cell used by MBS service is a special cell or not.

As shown in fig. 7, the total length of the PBCH information is 0 to a+7, where a= 24,0 to a represent the length of MIB information, a-1 is a reserved bit of the MIB field, a+6 and a+7 are reserved bits of PBCH bearer bit information, and by setting one or two bits of a-1, a+6 and a+7, it can be indicated whether a cell used by the network side device to send MBS service is a dedicated cell.

For example: by aligning

One or two of the reserved bits are set to indicate whether the network side equipment sends the MBS service using the special cell or not, and the special cell can be explicitly indicated when + ->

And/or when

Optionally, the first indication information includes:

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

In this embodiment, after the terminal obtains the detection timing parameter of the target PDCCH, the location relationship between the SSB and the target PDCCH may be determined according to the detection timing parameter of the target PDCCH, and the detection mode of the target PDCCH may be determined according to the location relationship between the SSB and the target PDCCH. Or, the network side device indicates the detection mode of the target PDCCH through bits carried by the PBCH in the SSB (for example, reserved bits of the MIB field or reserved bits carrying bit information in the PBCH).

Determining, at the terminal, a detection manner of the target PDCCH according to a positional relationship between the SSB and the target PDCCH, for example: if the first detection time slot of the target PDCCH and the SSB are positioned in the same time slot, determining that the detection mode on the first detection time slot is a detection mode based on NCP; if the first detection time slot of the target PDCCH and the SSB are positioned in different time slots, determining that the detection mode on the first detection time slot is an ECP-based detection mode.

Optionally, in the case that the cell used by the network side device to send the MBS service is a private cell, the network side device may only configure 1 NCP timeslot to transmit the target PDCCH (for example, timeslot n 0), where the NCP timeslot and the SSB are located in the same timeslot (for example, offset O is 0 or 5), so that by reducing the detection opportunity of the target PDCCH (that is, from the original 2 timeslots to 1 timeslot), the purpose of increasing the configuration of the ECP timeslots is achieved, the timeslot utilization rate of the private cell is improved, and the broadcast multicast service transmission efficiency is improved.

It should be noted that, in the embodiments applied to the terminal, all embodiments related to the network side device are applicable to the embodiments applied to the network side device, and the same technical effects can be achieved, which are not described herein.

It should be noted that, the method for detecting a control channel in the embodiment of the present application may be applicable to a terminal supporting a protocol standard and subsequent evolution of a dedicated cell.

The foregoing embodiments are described with respect to the method for detecting a control channel according to the present invention, and the following embodiments will further describe the corresponding apparatus with reference to the accompanying drawings.

Specifically, as shown in fig. 11, an embodiment of the present invention provides an apparatus 1100 for detecting a control channel, including:

a first receiving unit 1110, configured to receive a synchronization signal block SSB sent by a network side device;

a first determining unit 1120, configured to determine, according to the SSB, a detection manner of a target physical downlink control channel PDCCH;

a detection unit 1130, configured to detect the target PDCCH according to the detection manner;

Optionally, the apparatus further comprises:

A second determining unit, configured to determine, according to the SSB, a cell indicated by the network side device to send an MBS service as a dedicated cell;

Optionally, the first determining unit is specifically configured to: if the cell indicated by the network side equipment for sending the MBS service is a special cell, determining a detection mode of a target PDCCH according to the SSB.

Optionally, the second determining unit includes:

a first determining subunit, configured to determine, according to an indication state of a target field of a physical broadcast channel PBCH in the SSB, a cell indicated by the network side device to send an MBS service as a private cell;

or alternatively, the process may be performed,

and the second determining subunit is used for determining the cell indicated by the network side equipment to send the MBS service as a special cell according to the bit carried by the PBCH in the SSB.

Optionally, the first determining subunit is specifically configured to:

or alternatively, the process may be performed,

Optionally, the second determining subunit is specifically configured to:

or alternatively, the process may be performed,

Optionally, the first determining unit includes:

a third determining subunit, configured to determine a detection mode of the target PDCCH according to a position relationship between the SSB and the target PDCCH;

or alternatively, the process may be performed,

and a fourth determining subunit, configured to determine, according to the bit carried by the PBCH in the SSB, a detection manner of the target PDCCH.

Optionally, the third determining subunit is specifically configured to:

It should be noted that, the above device provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in the embodiment are omitted.

Specifically, as shown in fig. 12, an embodiment of the present invention provides an apparatus 1200 for detecting a control channel, including:

a first sending unit 1210, configured to send an SSB to a terminal, where the SSB includes: first indication information for indicating a detection mode of the target PDCCH;

Optionally, the second indication information includes:

information indicating a state of a target field of a PBCH in the SSB;

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

Optionally, the target field includes:

SIB configuration information fields in the PBCH;

or alternatively, the process may be performed,

Optionally, the bits include:

a first bit of a MIB field in the PBCH;

or alternatively, the process may be performed,

and a second bit of bit information is carried in the PBCH.

Optionally, the first indication information includes:

Or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

It should be noted that, the above device provided in this embodiment of the present invention can implement all the method steps implemented in the method embodiment applied to the network side device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in 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 (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

As shown in fig. 13, an embodiment of the present invention further provides a terminal, including: memory 1320, transceiver 1300, processor 1310;

a memory 1320 for storing a computer program; a processor 1310 for reading a computer program in the memory; a transceiver 1300 for receiving and transmitting data under the control of the processor and performing the following operations:

Receiving a synchronous signal block SSB sent by network side equipment;

the processor 1310 is configured to read a computer program in the memory and perform the following operations:

according to the SSB, determining a cell indicated by the network side equipment for sending MBS service as a special cell;

Or alternatively, the process may be performed,

or alternatively, the process may be performed,

It is noted that in fig. 13, the bus architecture may include any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 1310 and various circuits of memory represented by memory 1320, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1300 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 1330 may also be an interface capable of interfacing with an inscribed desired device for a different terminal, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1310 in performing operations.

Alternatively, the processor 1310 may be a CPU (central processing unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device ), and the processor may also employ a multi-core architecture.

The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.

It should be noted that, the terminal provided by the embodiment of the present invention can implement all the method steps implemented by the method embodiment applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted.

As shown in fig. 14, an embodiment of the present invention further provides a network side device, including: memory 1420, transceiver 1400, processor 1410;

a memory 1420 for storing a computer program; a processor 1410 for reading a computer program in the memory; a transceiver 1400 for receiving and transmitting data under the control of the processor and performing the following operations:

Optionally, the second indication information includes:

information indicating a state of a target field of a PBCH in the SSB;

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

Optionally, the target field includes:

SIB configuration information fields in the PBCH;

or alternatively, the process may be performed,

Optionally, the bits include:

a first bit of a MIB field in the PBCH;

or alternatively, the process may be performed,

and a second bit of bit information is carried in the PBCH.

Optionally, the first indication information includes:

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

Where in FIG. 14, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by the processor 1410 and various circuits of the memory represented by the memory 1420, are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1400 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 1410 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1410 in performing operations.

The processor 1410 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (Complex Programmable Logic Device, CPLD), and the processor may also employ a multi-core architecture.

It should be noted that, the network side device provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment applied to the network side device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in the embodiment are omitted.

In addition, the specific embodiment of the present invention also provides a processor readable storage medium, on which a computer program is stored, where the program when executed by a processor implements the steps of the method for detecting a control channel as described above. And the same technical effects can be achieved, and in order to avoid repetition, the description is omitted here. The readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), etc.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flowchart and/or block of the flowchart illustrations and/or block diagrams, and combinations of flowcharts and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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

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

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A method of detecting a control channel, comprising:

the terminal detects the target PDCCH according to the detection mode;

2. The method of claim 1, wherein prior to determining the detection scheme of the target physical downlink control channel PDCCH based on the SSB, the method further comprises:

the terminal determines the cell indicated by the network side equipment for sending the broadcast multicast MBS service as a special cell according to the SSB;

3. The method of claim 2, wherein the determining, according to the SSB, a detection manner of a target physical downlink control channel PDCCH specifically includes:

4. The method according to claim 2, wherein the determining, according to the SSB, that the cell indicated by the network side device that transmits the broadcast multicast MBS service is a private cell includes:

or alternatively, the process may be performed,

5. The method of claim 4, wherein the determining, according to the indication state of the target field of the PBCH in the SSB, that the cell indicated by the network side device to send the MBS service is a private cell includes:

or alternatively, the process may be performed,

6. The method of claim 4, wherein the determining, according to the bit carried by the PBCH in the SSB, the cell indicated by the network side device to send the MBS service is a private cell, includes:

or alternatively, the process may be performed,

7. The method according to claim 1 or 3, wherein the determining, according to the SSB, a detection manner of the target physical downlink control channel PDCCH includes:

or alternatively, the process may be performed,

8. The method of claim 7, wherein the determining the detection mode of the target PDCCH according to the location relation between the SSB and the target PDCCH comprises:

9. The method of claim 7, wherein the SSB and the target PDCCH are located in the following relationship:

10. A method of detecting a control channel, comprising:

11. The method of claim 10, wherein the SSB further comprises: the second indication information is used for indicating the network side equipment to send whether the cell used by the MBS service is a special cell or not;

12. The method according to claim 11, wherein the detection means is: and when the network side equipment adopts the special cell to send MBS service, the terminal detects the target PDCCH.

13. The method of claim 11, wherein the second indication information comprises:

information indicating a state of a target field of a PBCH in the SSB;

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

14. The method of claim 13, wherein the target field comprises:

SIB configuration information fields in the PBCH;

or alternatively, the process may be performed,

15. The method of claim 13, wherein the bits comprise:

a first bit of a MIB field in the PBCH;

or alternatively, the process may be performed,

and a second bit of bit information is carried in the PBCH.

16. The method of claim 10, wherein the first indication information comprises:

or alternatively, the process may be performed,

and the information of the bit carried by the PBCH in the SSB.

17. A terminal, comprising: memory, transceiver, processor:

receiving a synchronous signal block SSB sent by network side equipment;

18. A network side device, comprising: memory, transceiver, processor:

19. An apparatus for detecting a control channel, comprising:

20. An apparatus for detecting a control channel, comprising:

21. A processor readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor realizes the steps of the method of detecting a control channel according to any of claims 1 to 9 or the steps of the method of detecting a control channel according to any of claims 10 to 16.