CN112469122A - Broadcast channel indication method, equipment and communication system - Google Patents
Broadcast channel indication method, equipment and communication system Download PDFInfo
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- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
The application discloses a broadcast channel indication method, which comprises a plurality of synchronous signal blocks on a synchronous grid on the same frequency band, wherein each synchronous signal block comprises first broadcast information used for indicating a control channel set associated with the current synchronous signal block; the control channel set is used for indicating the position of a time domain and a frequency domain for transmitting second broadcast information; the second broadcast information includes an identifier of the plurality of synchronization signal blocks, a frequency band, and indication information of a control channel set associated with each synchronization signal block. The application also comprises a device and a communication system for implementing the method. The method and the device solve the problems that in the prior art, the first synchronous operation of the terminal device in a satellite communication application scene is complex, and the search frequency grid efficiency is low.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a method, a device, and a system for indicating a broadcast channel.
Background
The multiple antennas of the satellite may generate multiple beams. One beam of the satellite may be mapped into one cell or multiple beams may be mapped into one cell, wherein the second approach may avoid frequent cell handovers. If a cell contains multiple satellite beams and the satellite beams are mapped to different frequency bands, each frequency band may be associated with a fractional Bandwidth (BWP). For example, a satellite generates three beams, which are mapped to one cell, and different beams are transmitted at different BWPs, achieving frequency reuse with a frequency reuse factor of 3.
The current 5G NR standard uses beam management for terrestrial communication with multiple beams on the same frequency band, and related art standards for beam management have not been introduced in satellite communication scenarios. In the process of initial access of the mobile terminal, the terminal searches SSB, obtains broadcast information MIB on the optimal beam, determines the current beam, receives a control channel set (CORESET0) related to the corresponding beam, obtains residual system information (SIB1) by data indicated by CORESET0, performs uplink random access according to SIB1 information, and completes RRC connection. The BWP where the terminal first camps is called initial BWP, and then a maximum of 4 BWPs are configured by RRC. Further, the terminal may be instructed to switch to a new BWP for data transceiving through downlink control signaling.
In the satellite scenario described above, different beams are located on different BWPs, unlike current standards, and therefore the SSB associated with the respective beam may exist on the BWP on which the beam is located. In this case, if the terminal performs synchronization in multiple frequency bands and accesses to the current beam, it first needs to indicate the BWP where the terminal is located; considering the mobility of the terminal, the terminal also needs to know the direction of the other beams and the BWP in which it is located. Therefore, the first synchronization of the terminal has complexity, and it is not easy to obtain all beam directions and BWP information.
Disclosure of Invention
The application provides a broadcast channel indication method, equipment and a wireless communication system, and solves the problems that in the prior art, the first synchronous operation is complex and the efficiency of searching frequency grids is low. In the scheme of the application, the terminal searches the synchronous signal to find the corresponding SSB; the patent also indicates to the terminal the direction of the other beams and the BWP in which they are located under one cell ID by means of broadcast information. The scheme of the application is particularly suitable for satellite communication systems.
In a first aspect, a broadcast channel indication method provided by the present application includes, on a synchronization grid on a same frequency band, a plurality of synchronization signal blocks, where each synchronization signal block includes first broadcast information for indicating a control channel set associated with a current synchronization signal block;
the control channel set is used for indicating the position of a time domain and a frequency domain for transmitting second broadcast information;
the second broadcast information includes an identifier of the plurality of synchronization signal blocks, a frequency band in which each synchronization signal block is located, and indication information of a control channel set associated with each synchronization signal block.
Preferably, the indication information included in the first broadcast information includes frequency offset information with respect to an initial frequency band; the plurality of synchronization signal blocks are included only in the initial frequency band.
Preferably, the indication information included in the second broadcast information further includes frequency offset information with respect to an initial frequency band; including the plurality of synchronization signal blocks only in the initial frequency bin.
Preferably, the multiplexing mode of the synchronization signal block and the associated control channel set is mode two or mode three; the second mode is frequency division multiplexing, and the starting time of the control channel set is earlier than the synchronous signal block; and the third mode is frequency division multiplexing, and the starting time of the notification signal set is not earlier than the synchronous signal block.
Preferably, in the first broadcast information and the second broadcast information corresponding to the synchronization signal block, at least one of the following indication information associated with any one synchronization signal block is the same in the same frequency band: the multiplexing mode of the synchronous signal block and the control channel set; frequency offset with respect to the initial frequency band.
And/or, preferably, in the first broadcast information and the second broadcast information corresponding to the synchronization signal block in different frequency bands, the following indication information associated with any one synchronization signal block is the same: and (3) multiplexing the synchronous signal block and the control channel set. In the first broadcast information and the second broadcast information, the same indication information does not repeat the indication.
Preferably, the coefficients of the common search space in which the control channel set is located are numbered according to the number of the plurality of synchronization signal blocks of the same frequency band.
A technical solution of a second aspect of the present application is that, in the method according to any one of the embodiments of the first aspect of the present application, the method is used for a terminal device:
the terminal equipment scans a wireless radio frequency channel and receives a synchronous signal block in any beam direction;
after the terminal equipment realizes synchronization through a current synchronization signal block, receiving first broadcast information to obtain a control channel set corresponding to the current synchronization signal block;
the terminal equipment obtains the position of a time domain and a frequency domain of second broadcast information through the control channel set;
and the terminal equipment obtains the identifications of a plurality of synchronous signal blocks, the frequency band of each synchronous signal block, and the indication information of the control channel set and the public search space associated with each synchronous signal block through the second broadcast information.
In a third aspect, embodiments of the present application provide a terminal device, which uses the method described in any one of the embodiments of the first aspect of the present application,
the terminal equipment scans a wireless radio frequency channel and receives a synchronous signal block in any beam direction;
after the terminal equipment realizes synchronization through a current synchronization signal block, receiving first broadcast information to obtain a control channel set corresponding to the current synchronization signal block;
the terminal equipment obtains the position of a time domain and a frequency domain of second broadcast information through the control channel set;
and the terminal equipment obtains the identification of a plurality of synchronous signal blocks, the frequency band of each synchronous signal block and the indication information of the control channel set associated with each synchronous signal block through the second broadcast information.
In a fourth aspect, an embodiment of the present application provides a network device, where with the method described in any of the first aspects of the present application, the network device is configured to send the first broadcast information and the second broadcast information.
In a fifth aspect, the present application also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the first aspect of the present application.
Finally, the present application proposes a communication system comprising at least 1 terminal device according to the third aspect of the present application and at least 1 network device according to the fourth aspect of the present application.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
in satellite communication, one cell maps a plurality of beams and reduces interference in a frequency multiplexing mode, and when the BWP is used for frequency multiplexing, all SSBs are transmitted on the initial BWP, so that a terminal can conveniently obtain the mapping relation between all BWPs and the beams in a system and the information indication of CORESET0 associated with each beam. This patent extends MIB and SIB1 to indicate the above information, where MIB addition information indicates BWP information of a beam where the terminal is located, and indicates the BWP information by way of frequency offset from the initial BWP, SIB1 addition information indicates mapping relationship between all beams and BWP in the system, and information of CORESET0 and common search space of all beams. The method has the advantages that the complexity of the first time synchronization of the terminal is reduced, all SSBs are located in the same frequency band, the frequency grid for searching is relatively less, and the searching time is reduced.
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 flow chart of an embodiment of the method of the present application;
FIG. 2 is a schematic representation of the locations of SSBs and SIB 1;
FIG. 3 is a schematic diagram of SSB and CORESET0 multiplexing modes;
FIG. 4 is a flowchart of an embodiment of the method of the present application for a terminal device;
FIG. 5 is a schematic diagram of an embodiment of a network device;
FIG. 6 is a schematic diagram of an embodiment of a terminal device;
fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention;
fig. 8 is a block diagram of a terminal device of another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the 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.
In the embodiments of the present application, the SSB is referred to as a "synchronization signal block". The existing NR synchronization signal block set is a set of a plurality of synchronization signal blocks within a certain time period, each synchronization signal block corresponds to one beam direction within the same period, and the beam direction of each synchronization signal block within one synchronization signal block set covers the entire cell. The synchronization signal block is transmitted at a plurality of times in different beam directions.
In the NR system, after acquiring the SSB information, the terminal receives the broadcasted MIB information and the remaining system information SIB 1. Among them, SIB1 information is transmitted through a downlink PDSCH data channel, and the PDSCH channel requires a channel of a PDCCH for scheduling. The terminal obtains the PDCCH information of the scheduling SIB1 in the MIB, and further obtains the SIB1 information of the scheduling. The NR common search space is used to schedule SIB 1. NR defines a physical resource set CORESET, where CORESET0 is the physical resource set to which scheduling SIB1 corresponds.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a flow chart of an embodiment of the method of the present application.
The application provides a broadcast channel indication method, which comprises the following steps:
step 101, transmitting a synchronization signal block and first broadcast information on the same frequency band;
the synchronization grid on the same frequency band (i.e. the initial frequency band) contains a plurality of synchronization signal blocks, each of which contains first broadcast information for indicating a set of control channels associated with the current synchronization signal block. The control channel set and the common search space in the present application are information of a channel for scheduling the second broadcast information. For example, in the 5G NR system, the information used for scheduling the downlink control channel of SIB1, where the lower 4 bits indicate the configuration of the type 0common search space (type 0common search space) in which the control channel set0 is located, including the parameter values only used for pattern1, the index of the first OFDM symbol in the search space, the number of search spaces in each slot, and the upper 4 bits indicate the configuration of the control channel set 0(CORESET0), including the multiplexing mode type of SSB and CORESET0, the number of PRBs occupied by CORESET0, the number of OFDM symbols used for CORESET0, and the deviation of the lower edge of SSB from the lower edge of CORESET0 in the frequency domain.
Preferably, the indication information included in the first broadcast information includes frequency offset information with respect to an initial frequency band; in a cell, the plurality of synchronization signal blocks are included only in the initial frequency band.
102, transmitting control information for indicating second broadcast information distributed in a plurality of frequency bands;
the control channel set transmits control information for indicating a location of a time and frequency domain where second broadcast information is transmitted;
each synchronization signal block corresponds to a second broadcast message;
the second broadcast information corresponding to the plurality of synchronization signal blocks is distributed over a plurality of frequency bands, for example, the second broadcast information corresponding to at least a part of the synchronization signal blocks is located in the initial frequency band, and the second broadcast information corresponding to at least a part of other synchronization signal blocks is located in other frequency bands. The number of these is at least 2.
103, transmitting second broadcast information for determining a plurality of control channel sets respectively corresponding to the plurality of synchronization signal blocks;
the second broadcast information includes an identifier of the plurality of synchronization signal blocks, a frequency band in which each synchronization signal block is located, and indication information of a control channel set associated with each synchronization signal block.
Preferably, the indication information included in the second broadcast information further includes frequency offset information with respect to an initial frequency band; in a cell, the plurality of synchronization signal blocks are contained only in the initial frequency band. The signaling overhead is reduced by broadcasting the CORESET0 related to all beams in the information indication system and the indicated SIB1 information and indicating by means of frequency offset.
Preferably, in the first broadcast information and the second broadcast information corresponding to the synchronization signal block, at least one of the following indication information associated with any one synchronization signal block is the same in the same frequency band: the multiplexing mode of the synchronous signal block and the control channel set; frequency offset with respect to the initial frequency band.
Preferably, in the first broadcast information and the second broadcast information corresponding to the synchronization signal block, the following indication information associated with any one synchronization signal block is the same in different frequency bands: multiplexing mode of synchronous signal block and control channel set
It should be noted that, when the first broadcast information is the same as at least a part of the indication information in the second broadcast information, the same indication information in the first broadcast information may be multiplexed by the second broadcast information, and thus the transmission is not repeated in the second broadcast information. That is, the same indication information only needs to be transmitted once in the sum of the first broadcast information and the second broadcast information.
Figure 2 is a schematic diagram of the locations of the SSBs and SIB 1.
For example, the frequency band is BWP, the initial frequency band is BWP1, the first broadcast information is MIB, and the second broadcast information is SIB 1.
As shown in fig. 2, the set of left honeycomb shapes represents a schematic diagram of frequency reuse of multiple beams in the same cell; the right bar set represents the distribution of multiple SSBs and corresponding SIBs 1 over the frequency band; F1-F3 represent 3 BWPs; 1-8 represent the numbers of the beam directions (or the numbers of SSBs). SSBs for all beams are transmitted on BWP1, but CORESET0 for indicating SIB1 and SIB1 information may be located on different BWPs. The terminal searches the SSB, receives broadcast information MIB, i.e. CORESET0 indicating SIB1 information on the BWP where the terminal beam is located and the common search space, further, said CORESET0 and common search space indicate SIB1 information. The SIB1 information indicates to the terminal the association between SSBs and BWPs in the system, and the CORESET configuration information and common search space for each SSB.
For example, according to the frequency band (initial BWP configured for the system) where the synchronization signal block indicated by the first broadcast information and the second broadcast information is located, determining a frequency offset of each BWP from the initial BWP, and indicating the frequency offset to the terminal through the second broadcast information;
in the present embodiment, if the beam of the terminal is mapped on BWP2, the frequency offsets of BWP2 and BWP1 are indicated to the terminal by broadcasting in the MIB information; the frequency offset of BWP3 and BWP1 is indicated to the terminal in SIB1 information, and simultaneously the mapping relationship between all BWPs and beams is indicated in SIB1, that is, BWP1 corresponds to 4 beams No.1/4/5/8, BWP2 corresponds to 2 beams No.2/6, and BWP3 corresponds to 2 beams No. 3/7.
For another example, the indication modes of the control channel set associated with the synchronization information block corresponding to the second broadcast information employ mode two and mode three (see the embodiment shown in fig. 3);
in this embodiment, considering that SSB and CORESET0 are not necessarily on the same BWP, CORESET0 and SSB cannot be located in the same frequency band, and only mode two and mode three are used, where mode two is used in the frequency band range where the carrier frequency is greater than 6GHz, and mode three is used in the frequency band range where the carrier frequency is less than 6 GH.
In another embodiment of the present application, when the frequency of the SIB1 mapped by the SSB is the same, the frequency offset indicated in the first broadcast information and the second broadcast information is the same.
In this embodiment, the SIB1 frequency offset indication information of the four SSBs mapped by BWP1 is the same, the SIB1 frequency offset indication information of the 2 SSBs mapped by BWP2 is the same, and the SIB1 frequency offset indication information of the 2 SSBs mapped by BWP3 is the same.
In another embodiment of the present application, the frequency offset indication information of the control channel set associated with the synchronization information block on each frequency band is the same for the second broadcast information, and the frequency offset indication information of the control channel set of the first broadcast information is directly used for the second broadcast information.
Preferably, the coefficients of the common search space in which the control channel set is located are numbered according to the number of the plurality of synchronization signal blocks of the same frequency band.
For example, the indications of the type 0common search spaces of the existing standard all have a corresponding relationship with the SSB coefficient i, for example, in a first mode, the type 0common search space of an SSB is in a detection window comprising 2 consecutive time slots, the period of the detection window is 20ms, and the mapping relationship between the index i of the SSB and one time slot of the corresponding detection window is [ see TS 38.213v f.a.0 ]:
wherein n is0Is the index of the first time slot of the type 0common search space detection window, and O is used to control the start position of the detection window of the first SSB for avoiding the collision of the type 0common search space detection window and the SSB, the μ generationTable subcarrier spacing indication, M controls the degree of overlap of the detection windows of SSB _ i and SSB _ i +1, N is the number of slots of a subframe, where O and M are indicated by the lower 4 bits of the broadcast signaling MIB.
Considering that the number of SSBs on each BWP now varies, the SSB coefficients indicating the type 0common search space are numbered on one BWP.
To save signaling and terminal search complexity, the SSB coefficients associated with the CORESET are updated to the number of SSBs on each BWP.
FIG. 3 is a schematic diagram of SSB and CORESET0 multiplexing modes.
For example, a PDCCH-configSIB1 field in the MIB indicates that the terminal acquires information for scheduling a PDCCH of the RMSI, where the lower 4 bits indicate a configuration of type 0common search space, including a parameter value only for mode one, an index of a first OFDM symbol of a search space, and a number of search spaces within each slot, and the upper 4 bits indicate a configuration of CORESET0, including a multiplexing mode type of SSB and CORESET0, a number of PRBs occupied by CORESET0, a number of OFDM symbols used for CORESET0, and a deviation of a lower edge of SSB from a lower edge of CORESET0 in a frequency domain. Like the SSB, the SIB1 also needs to cover the entire cell, so there is one CORESET0 per sync block and the same beam direction is used. The multiplexing mode types of the SSB and the CORESET0 have the following three modes: mode one, mode two and mode three. The first mode is SSB and CORESET time division multiplexing; the second mode is frequency division multiplexing, and the starting time of the control channel set is earlier than the synchronous signal block; and the mode three is frequency division multiplexing, and the starting time of the control channel set is not earlier than the synchronous signal block.
Preferably, the multiplexing mode of the synchronization signal block and the associated control channel set is mode two or mode three; preferably, the synchronization signal blocks corresponding to the first broadcast information and the second broadcast information are multiplexed with the associated control channel set in the same frequency band in the same manner.
Fig. 4 is a flowchart of an embodiment of the method of the present application for a terminal device.
The method in any embodiment of the first aspect of the present application is used for a terminal device to:
step 202, after the terminal device achieves synchronization through a current synchronization signal block, receiving first broadcast information, and obtaining a control channel set corresponding to the current synchronization signal block;
step 204, the terminal device obtains the identifiers and frequency bands of the multiple synchronization signal blocks and the indication information of the control channel set associated with each synchronization signal block through the second broadcast information.
Fig. 5 is a schematic diagram of an embodiment of a network device.
The present application further proposes a network device configured to: and transmitting the first broadcast information and the second broadcast information.
In order to implement the foregoing technical solution, the network device 400 provided in the present application includes at least one of a network sending module 401, a network determining module 402, and a network receiving module 403.
The network sending module is used for sending the first broadcast information and the second broadcast information; the network transmission module transmits a plurality of synchronization signal blocks in the same frequency band (e.g., initial BWP), where each synchronization signal block includes the first broadcast information. The network transmission module transmits second broadcast information in a plurality of frequency bands (e.g., including an initial BWP and other BWPs), wherein each second broadcast information corresponds to a first broadcast information. The second broadcast information corresponding to the plurality of synchronization signal blocks is distributed over a plurality of frequency bands, for example, the second broadcast information corresponding to at least a part of the synchronization signal blocks is located in the initial frequency band, and the second broadcast information corresponding to at least a part of other synchronization signal blocks is located in other frequency bands. The network sending module is further configured to send a signal of a downlink control channel, where a position of the downlink control channel is indicated by the first broadcast information, and the downlink control channel is used to schedule the second broadcast information.
The network determination module is configured to determine an accessed frequency band (e.g., BWP) and a beam.
The network receiving module is used for receiving a random access request.
The specific method for implementing the functions of the network sending module, the network determining module, and the network receiving module is described in the embodiments of the methods of the present application, and is not described herein again.
The network device described in the present application includes, but is not limited to, a mobile communication base station device or a satellite-borne device for satellite communication.
Fig. 6 is a schematic diagram of an embodiment of a terminal device.
The application provides a terminal device, the terminal device is used for:
scanning a wireless radio frequency channel, and receiving a synchronous signal block in any beam direction;
after synchronization is realized through a current synchronization signal block, receiving first broadcast information, and acquiring a control channel set and a search space set corresponding to the current synchronization signal block;
obtaining a location of a time and frequency domain of second broadcast information through the set of control channels;
and acquiring the identifications of a plurality of synchronous signal blocks, the frequency band of each synchronous signal block, and the indication information of the control channel set and the common search space associated with each synchronous signal block through the second broadcast information.
In order to implement the foregoing technical solution, the terminal device 500 provided in the present application includes at least one of a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503.
The terminal receiving module is configured to receive any one synchronization signal block and first broadcast information, and obtain indication information of a control channel set and a search space set corresponding to the any one synchronization signal block (i.e., a current signal block for implementing synchronization); the system is also used for receiving a downlink control channel; and the receiver is further configured to receive second broadcast information, where the second broadcast information includes an identifier of the plurality of synchronization signal blocks, a frequency band, and indication information of a control channel set and a common search space associated with each synchronization signal block.
The terminal determining module is used for determining a control channel set and a common search space corresponding to first broadcast information according to indication information in the first broadcast information; the terminal determining module is further configured to determine a position of the second broadcast information according to the downlink control channel; the terminal determining module is further configured to determine, according to the indication information of the second broadcast information terminal, a control channel set and indication information of a common search space associated with each synchronization signal block in the initial frequency band.
The terminal sending module is configured to send a random access response in a beam corresponding to any one of the synchronization signal blocks (i.e., a current signal block for achieving synchronization) in the initial frequency band; further, an uplink control channel (PUCCH) or uplink data (PUSCH) is transmitted.
The specific method for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module is as described in the method embodiments of the present application, and is not described herein again.
The terminal equipment can be mobile communication personal terminal equipment and satellite communication ground equipment, and in the satellite communication ground equipment, the terminal equipment can be mobile terminal equipment or fixed equipment.
Fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. including a transmitter and a receiver, providing means for communicating with various other apparatus over a transmission medium. The wireless interface implements a communication function with the terminal device, and processes wireless signals through the receiving and transmitting devices, and data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program that executes any of the embodiments of the present application, running or changed on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described herein.
Fig. 8 is a block diagram of a terminal device of another embodiment of the present invention. The terminal device 700 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the terminal device 700 are coupled together by a bus system. A bus system is used to enable connection communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.
The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen, among others.
The memory 702 stores executable modules or data structures. The memory may have stored therein an operating system and an application program. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, and the like for implementing various application services.
In the embodiment of the present invention, the memory 702 contains a computer program for executing any of the embodiments of the present application, and the computer program runs or changes on the processor 701.
The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and combines the hardware to complete the steps of the above-described method. In particular, the computer-readable storage medium has stored thereon a computer program which, when being executed by the processor 701, carries out the steps of the method embodiments as described above with reference to any of the embodiments.
The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be implemented by hardware integrated logic circuits in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array 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 invention 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 invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In a typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and a memory.
Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application therefore also proposes a computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application. For example, the memory 603, 702 of the present invention may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM).
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
Based on the embodiments of fig. 5 to 8, the present application further provides a communication system, which includes at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in the present application. The communication system described in the present application may be a terrestrial mobile communication system or a satellite communication system, and is not limited specifically herein.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (12)
1. A broadcast channel indication method, characterized in that,
the method comprises the steps that a synchronization grid on the same frequency band comprises a plurality of synchronization signal blocks, and each synchronization signal block comprises first broadcast information used for indicating a control channel set associated with the current synchronization signal block;
the control channel set is used for indicating the position of a time domain and a frequency domain for transmitting second broadcast information;
the second broadcast information includes an identifier of the plurality of synchronization signal blocks, a frequency band in which each synchronization signal block is located, and indication information of a control channel set associated with each synchronization signal block.
2. The method of claim 1,
the indication information included in the first broadcast information includes frequency offset information relative to an initial frequency band; the plurality of synchronization signal blocks are included only in the initial frequency band.
3. The method of claim 1,
the second broadcast information further includes frequency offset information relative to an initial frequency band; the plurality of synchronization signal blocks are included only in the initial frequency band.
4. The method of claim 1,
the multiplexing mode of the synchronous signal block and the associated control channel set is a mode two or a mode three;
the second mode is frequency division multiplexing, and the starting time of the control channel set is earlier than the synchronous signal block;
and the third mode is frequency division multiplexing, and the starting time of the notification signal set is not earlier than the synchronous signal block.
5. The method of claim 1,
in the same frequency band, of the first broadcast information and the second broadcast information corresponding to the synchronization signal block, at least one of the following indication information associated with any one synchronization signal block is the same, and the indication is not repeated:
the multiplexing mode of the synchronous signal block and the control channel set;
frequency offset with respect to the initial frequency band.
6. The method of claim 1,
in the first broadcast information and the second broadcast information corresponding to the synchronization signal block in different frequency bands, the following indication information associated with any synchronization signal block is the same, and the indication is not repeated:
and (3) multiplexing the synchronous signal block and the control channel set.
7. The method of claim 1,
and the coefficients of the common search space where the control channel set is located are numbered according to the number of the plurality of synchronous signal blocks of the same frequency band.
8. The method according to any of claims 1 to 7, for a terminal device,
the terminal equipment scans a wireless radio frequency channel and receives a synchronous signal block in any beam direction;
after the terminal equipment realizes synchronization through a current synchronization signal block, receiving first broadcast information to obtain a control channel set corresponding to the current synchronization signal block;
the terminal equipment obtains the position of a time domain and a frequency domain of second broadcast information through the control channel set;
and the terminal equipment obtains the identification of a plurality of synchronous signal blocks, the frequency band of each synchronous signal block and the indication information of the control channel set associated with each synchronous signal block through the second broadcast information.
9. A terminal device using the method of any one of claims 1 to 7,
the terminal equipment scans a wireless radio frequency channel and receives a synchronous signal block in any beam direction;
after the terminal equipment realizes synchronization through a current synchronization signal block, receiving first broadcast information to obtain a control channel set corresponding to the current synchronization signal block;
the terminal equipment obtains the position of a time domain and a frequency domain of second broadcast information through the control channel set;
and the terminal equipment obtains the identification of a plurality of synchronous signal blocks, the frequency band of each synchronous signal block and the indication information of the control channel set associated with each synchronous signal block through the second broadcast information.
10. A network device using the method of any one of claims 1 to 7,
the network device is configured to send the first broadcast information and the second broadcast information.
11. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
12. A communication system comprising at least 1 terminal device according to claim 9 and at least 1 network device according to claim 10.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112469121A (en) * | 2020-10-15 | 2021-03-09 | 中国信息通信研究院 | Broadcast channel indication method, equipment and communication system |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018128427A1 (en) * | 2017-01-04 | 2018-07-12 | Samsung Electronics Co., Ltd. | Method and apparatus for system information delivery in wireless communication system |
| CN108282859A (en) * | 2017-01-06 | 2018-07-13 | 华为技术有限公司 | A kind of communication means and device |
| CN108401533A (en) * | 2017-11-30 | 2018-08-14 | 北京小米移动软件有限公司 | Information indicating method and device, base station and user equipment |
| CN109309955A (en) * | 2017-07-28 | 2019-02-05 | 华为技术有限公司 | A kind of transmission method, access network equipment and the terminal device of synchronization signal block |
| CN109391415A (en) * | 2017-08-11 | 2019-02-26 | 展讯通信（上海）有限公司 | The configuration method of synchronization signal block and device, storage medium, base station, user equipment in RMSI |
| CN109451866A (en) * | 2018-02-13 | 2019-03-08 | 北京小米移动软件有限公司 | Information configuring methods and device, base station and user equipment |
| CN109787730A (en) * | 2017-11-14 | 2019-05-21 | 电信科学技术研究院 | A kind of resource allocation method and device, computer storage medium |
| CN110022191A (en) * | 2018-01-08 | 2019-07-16 | 维沃移动通信有限公司 | Method for sending information, method of reseptance, the network equipment and terminal |
| CN110034899A (en) * | 2018-01-12 | 2019-07-19 | 华为技术有限公司 | The method and apparatus of signal detection |
| CN110168972A (en) * | 2017-01-04 | 2019-08-23 | 三星电子株式会社 | Method and apparatus for the system information transmitting in wireless communication system |
| CN110546900A (en) * | 2017-06-04 | 2019-12-06 | Lg 电子株式会社 | Method for receiving system information in wireless communication system and apparatus therefor |
| CN110971322A (en) * | 2018-09-30 | 2020-04-07 | 维沃移动通信有限公司 | Information transmission method, network equipment and terminal |
| CN111149402A (en) * | 2017-09-22 | 2020-05-12 | 三星电子株式会社 | Method and apparatus for controlling resource set configuration in a wireless communication system |
| CN111213338A (en) * | 2017-12-06 | 2020-05-29 | Oppo广东移动通信有限公司 | Wireless communication method and apparatus |
| CN111344990A (en) * | 2017-11-17 | 2020-06-26 | 高通股份有限公司 | Design for Remaining Minimum System Information (RMSI) control resource set (CORESET) and Other System Information (OSI) CORESET |
| CN111373817A (en) * | 2017-11-16 | 2020-07-03 | 华为技术有限公司 | Configuration of initial active portion bandwidth for initial network access |
| CN111525995A (en) * | 2019-02-03 | 2020-08-11 | 华为技术有限公司 | Data transmission method, network equipment and terminal equipment |
| WO2020183613A1 (en) * | 2019-03-12 | 2020-09-17 | 株式会社Ｎｔｔドコモ | User terminal and wireless communication method |
| CN111699714A (en) * | 2017-12-13 | 2020-09-22 | 株式会社Ntt都科摩 | User terminal and wireless communication method |
| CN112469121A (en) * | 2020-10-15 | 2021-03-09 | 中国信息通信研究院 | Broadcast channel indication method, equipment and communication system |
-
2020
- 2020-10-15 CN CN202011105837.4A patent/CN112469122A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110168972A (en) * | 2017-01-04 | 2019-08-23 | 三星电子株式会社 | Method and apparatus for the system information transmitting in wireless communication system |
| WO2018128427A1 (en) * | 2017-01-04 | 2018-07-12 | Samsung Electronics Co., Ltd. | Method and apparatus for system information delivery in wireless communication system |
| CN108282859A (en) * | 2017-01-06 | 2018-07-13 | 华为技术有限公司 | A kind of communication means and device |
| CN110546900A (en) * | 2017-06-04 | 2019-12-06 | Lg 电子株式会社 | Method for receiving system information in wireless communication system and apparatus therefor |
| CN109309955A (en) * | 2017-07-28 | 2019-02-05 | 华为技术有限公司 | A kind of transmission method, access network equipment and the terminal device of synchronization signal block |
| CN109391415A (en) * | 2017-08-11 | 2019-02-26 | 展讯通信（上海）有限公司 | The configuration method of synchronization signal block and device, storage medium, base station, user equipment in RMSI |
| CN111149402A (en) * | 2017-09-22 | 2020-05-12 | 三星电子株式会社 | Method and apparatus for controlling resource set configuration in a wireless communication system |
| CN109787730A (en) * | 2017-11-14 | 2019-05-21 | 电信科学技术研究院 | A kind of resource allocation method and device, computer storage medium |
| CN111373817A (en) * | 2017-11-16 | 2020-07-03 | 华为技术有限公司 | Configuration of initial active portion bandwidth for initial network access |
| CN111344990A (en) * | 2017-11-17 | 2020-06-26 | 高通股份有限公司 | Design for Remaining Minimum System Information (RMSI) control resource set (CORESET) and Other System Information (OSI) CORESET |
| CN108401533A (en) * | 2017-11-30 | 2018-08-14 | 北京小米移动软件有限公司 | Information indicating method and device, base station and user equipment |
| CN111213338A (en) * | 2017-12-06 | 2020-05-29 | Oppo广东移动通信有限公司 | Wireless communication method and apparatus |
| CN111699714A (en) * | 2017-12-13 | 2020-09-22 | 株式会社Ntt都科摩 | User terminal and wireless communication method |
| CN110022191A (en) * | 2018-01-08 | 2019-07-16 | 维沃移动通信有限公司 | Method for sending information, method of reseptance, the network equipment and terminal |
| CN110034899A (en) * | 2018-01-12 | 2019-07-19 | 华为技术有限公司 | The method and apparatus of signal detection |
| CN109451866A (en) * | 2018-02-13 | 2019-03-08 | 北京小米移动软件有限公司 | Information configuring methods and device, base station and user equipment |
| CN110971322A (en) * | 2018-09-30 | 2020-04-07 | 维沃移动通信有限公司 | Information transmission method, network equipment and terminal |
| CN111525995A (en) * | 2019-02-03 | 2020-08-11 | 华为技术有限公司 | Data transmission method, network equipment and terminal equipment |
| WO2020183613A1 (en) * | 2019-03-12 | 2020-09-17 | 株式会社Ｎｔｔドコモ | User terminal and wireless communication method |
| CN112469121A (en) * | 2020-10-15 | 2021-03-09 | 中国信息通信研究院 | Broadcast channel indication method, equipment and communication system |
Non-Patent Citations (6)
| Title |
|---|
| E. GARRO ET AL.: "5G Mixed Mode: NR Multicast-Broadcast Services", IEEE TRANSACTIONS ON BROADCASTING ( VOLUME: 66, ISSUE: 2, JUNE 2020), 18 March 2020 (2020-03-18) * |
| HUAWEI, HISILICON: "R1-1812178 "Remaining issues on downlink signals and channels"", 3GPP TSG_RAN\\WG1_RL1, no. 1, 3 November 2018 (2018-11-03) * |
| HUAWEI, HISILICON: "R1-1903925 "Initial access signal and channels in NR unlicensed band"", 3GPP TSG_RAN\\WG1_RL1, no. 1, 30 March 2019 (2019-03-30) * |
| NOKIA, NOKIA SHANGHAI BELL: ""R1-1721362"", 3GPP TSG_RAN\\WG1_RL1, 29 November 2017 (2017-11-29) * |
| QUALCOMM INCORPORATED: "SSB arrangements, BWP operation and other issues for NTN", 3GPP TSG RAN WG1 #102-E R1-2006807, 8 August 2020 (2020-08-08), pages 1 - 3 * |
| 吴端法, 宋巍, 宋磊: "基于SSB的5G NR小区搜索研究", 5G网络创新研讨会（2019）, 15 August 2019 (2019-08-15) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469121A (en) * | 2020-10-15 | 2021-03-09 | 中国信息通信研究院 | Broadcast channel indication method, equipment and communication system |
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