Method and apparatus for transmitting remaining minimum system information

Abstract

Embodiments of the present application provide a method and device for transmitting remaining minimum system information. The method is performed in a communication system using multiple beams, wherein each beam corresponds to at least two time slots, and the time slots are used for transmitting remaining minimum system information (RMSI). The method comprises: when time slots corresponding to N beams of the multiple beams include at least one overlapping time slot, generating a first beam, wherein a coverage range of the first beam includes coverage ranges of each of the N beams, and N is an integer greater than or equal to 2; and transmitting the RMSI through the first beam in one of the at least one overlapping time slot. According to the method for transmitting remaining minimum system information, the RMSI is transmitted through a first beam with a coverage range including coverage ranges of the N beams in one overlapping time slot, which can reduce the number of times of transmitting the RMSI, thereby reducing the time domain resource overhead of the RMSI.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communications, and more particularly, to a method and apparatus for transmitting remaining minimum system information, a terminal device and a network device. BACKGROUND

[0002] In a new radio (NR) network, a user equipment (UE) establishes a connection with an evolved NodeB (eNB) by detecting a synchronization signal block (SSB) and remaining minimum system information (RMSI) transmitted by the eNB.

[0003] When the eNB transmits the SSB and the RMSI in a scanning manner through a narrow beam formed by beamforming within a period of time, the number of SSBs determines the time domain resource overhead of the RMSI. When the number of SSBs is large, the time domain resource overhead of the RMSI increases, which seriously affects the system downlink throughput. SUMMARY

[0004] Embodiments of the present application provide a method and apparatus for transmitting remaining minimum system information, which can reduce the time domain resource overhead of the RMSI of a communication device.

[0005] In a first aspect, a method for transmitting remaining minimum system information is provided, the method being performed in a communication system using a plurality of beams, wherein each beam corresponds to at least two time slots, and the time slots are used for transmitting remaining minimum system information (RMSI), the method comprising: when time slots corresponding to N beams in the plurality of beams include at least one overlapping time slot, generating a first beam, a coverage range of the first beam including a coverage range of each beam in the N beams, N being an integer greater than or equal to 2; and transmitting, through the first beam, the RMSI in one of the at least one overlapping time slot.

[0006] It should be understood that the at least one overlapping time slot is a time slot corresponding to a time slot intersection of the N beams. The coverage range of the first beam includes a coverage range of each of the N beams can be that the coverage range of the first beam is the same as the coverage range of the N beams, or the coverage range of the first beam is approximately the same as the coverage range of the N beams. The coverage range of the first beam can refer to a transmission angle and a beam width of the first beam, and the coverage range being approximately the same can refer to a deviation of the transmission width of the first beam from a total width of the N beams being within a preset range. In this way, transmitting the RMSI through the first beam with a coverage range including the coverage range of the one beam in one overlapping time slot can reduce the number of times of transmitting the RMSI in the time domain, thereby being able to reduce the time domain resource overhead of the RMSI.

[0007] With reference to the first aspect, in a possible implementation manner, the transmission time slots of the N beams in the plurality of beams are continuous; and / or the transmission time slots of the N beams in the plurality of beams are the same, wherein the transmission time slots are time slots in which synchronization signal blocks (SSBs) are transmitted.

[0008] With reference to the first aspect, in a possible implementation manner, the first beam includes N peaks, the N peaks one-to-one correspond to the N beams, and the RMSI is respectively transmitted on the N peaks.

[0009] It should be understood that the first beam can be formed by adjusting a network device parameter, the first beam can have a plurality of different coverage ranges, and one peak can correspond to one of the plurality of different coverage ranges. It should also be understood that the N peaks one-to-one correspond to the N beams can mean that a coverage range of each of the N peaks one-to-one corresponds to a coverage range of each of the N beams, and the coverage range can be the same or approximately the same, and a deviation of each peak from a corresponding beam width and / or angle is within a preset range.

[0010] With reference to the first aspect, in a possible implementation manner, coverage ranges of the N peaks include coverage ranges of the N beams.

[0011] With reference to the first aspect, in a possible implementation manner, a deviation of each of the N peaks from a transmission angle between corresponding beams in the plurality of beams is within a preset range.

[0012] In a second aspect, a method for transmitting remaining minimum system information is provided, which is performed in a communication system using a plurality of beams, wherein each beam corresponds to at least two time slots, and the time slots are used for transmitting the remaining minimum system information (RMSI), and the method comprises: receiving, by a first beam, the RMSI in one of at least one overlapping time slot, the at least one overlapping time slot is included in time slots corresponding to N beams in the plurality of beams, a coverage range of the first beam includes a coverage range of each of the N beams, and N is an integer greater than or equal to 2.

[0013] With reference to the second aspect, in a possible implementation, the transmission time slots of the N beams in the plurality of beams are continuous; and / or the transmission time slots of the N beams in the plurality of beams are the same, wherein the transmission time slots are time slots for transmitting synchronization signal blocks (SSBs).

[0014] With reference to the second aspect, in a possible implementation, the first beam includes N beam peaks, the N beam peaks correspond to the N beams one by one, and the RMSI is respectively received on the N beam peaks.

[0015] With reference to the second aspect, in a possible implementation, coverage ranges of the N beam peaks include coverage ranges of the N beams.

[0016] With reference to the second aspect, in a possible implementation, a deviation of each of the N beam peaks from a beam angle of departure corresponding to the plurality of beams is within a preset range.

[0017] In a third aspect, a network device is provided, which communicates using a plurality of beams, wherein each beam corresponds to at least two time slots, and the time slots are used for transmitting remaining minimum system information (RMSI), and the device comprises: a processing unit configured to control generation of a first beam when time slots corresponding to N beams in the plurality of beams include at least one overlapping time slot, a coverage range of the first beam includes a coverage range of each of the N beams, and N is an integer greater than or equal to 2; and a communication unit configured to transmit, by the first beam, the RMSI in one of the at least one overlapping time slot.

[0018] With reference to the third aspect, in a possible implementation, the transmission time slots of the N beams in the plurality of beams are continuous; and / or the transmission time slots of the N beams in the plurality of beams are the same, wherein the transmission time slots are time slots for transmitting synchronization signal blocks (SSBs).

[0019] With reference to the third aspect, in a possible implementation, the first beam includes N beam peaks, the N beam peaks correspond to the N beams one by one, and the communication unit is further configured to transmit the RMSI on the N beam peaks respectively.

[0020] In conjunction with the third aspect, in one possible implementation, the coverage area of ​​the N peaks includes the coverage area of ​​the N beams.

[0021] In conjunction with the third aspect, in one possible implementation, the deviation of the transmission angle between each of the N peaks and the corresponding beam in the plurality of beams is within a preset range.

[0022] Fourthly, a terminal device is provided for use in a system that uses multiple beams for communication, wherein each beam corresponds to at least two time slots for transmitting Residual Minimum System Information (RMSI). The device includes: a communication unit for receiving the RMSI via a first beam in one of at least one overlapping time slot, the at least one overlapping time slot being included in the time slots corresponding to N beams among the multiple beams, the coverage area of ​​the first beam including the coverage area of ​​each of the N beams, where N is an integer greater than or equal to 2.

[0023] In conjunction with the fourth aspect, in one possible implementation, the transmission time slots of N beams among the plurality of beams are consecutive; and / or the transmission time slots of N beams among the plurality of beams are the same, wherein the transmission time slot is the time slot for transmitting the synchronization signal block SSB.

[0024] In conjunction with the fourth aspect, in one possible implementation, the first beam includes N peaks, each corresponding to one of the N beams, and the RMSI is received on each of the N peaks.

[0025] In conjunction with the fourth aspect, in one possible implementation, the coverage area of ​​the N peaks includes the coverage area of ​​the N beams.

[0026] In conjunction with the fourth aspect, in one possible implementation, the deviation of the transmission angle between each of the N peaks and the corresponding beam in the plurality of beams is within a preset range.

[0027] Fifthly, a communication device is provided, comprising: a processor for executing a computer program stored in a memory, such that the communication device performs a method as in any possible implementation of the first to second aspects.

[0028] A sixth aspect provides a computer-readable storage medium storing a computer program that, when run on a computer, causes the computer to perform the methods as described in any of the possible implementations of the first to second aspects.

[0029] A seventh aspect provides a chip system comprising: a processor for calling and running a computer program from a memory, such that a communication device having the chip system mounted performs a method as described in any of the possible implementations of the first to second aspects. Attached Figure Description

[0030] Figure 1 This is a schematic diagram illustrating an application scenario of an embodiment of this application.

[0031] Figure 2 This is a schematic flowchart illustrating a method for transmitting a residual minimum system message according to an embodiment of this application.

[0032] Figure 3 This is a schematic diagram illustrating the coverage correspondence of embodiments of this application.

[0033] Figure 4 This is a schematic flowchart illustrating a method for transmitting a residual minimum system message according to another embodiment of this application.

[0034] Figure 5 This is a schematic diagram of a method for transmitting a residual minimum system message according to another embodiment of this application.

[0035] Figure 6 This is a schematic structural diagram of a communication device provided in one embodiment of this application.

[0036] Figure 7 The communication device provided in another embodiment of this application is a schematic structural diagram.

[0037] Figure 8 This is a schematic structural diagram of a communication device provided in one embodiment of this application.

[0038] Figure 9 The communication device provided in another embodiment of this application is a schematic structural diagram. Detailed Implementation

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0040] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a universal mobile telecommunication system (UMTS), or a worldwide interoperability for microwave access (WiMAX) communication system, and the like.

[0041] In the embodiments of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes central processing units (CPUs), memory management units (MMUs), memories (also referred to as main memories), and the like. The operating system can be any one or more computer operating systems that implement business processing through processes, for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system, and the like. The application layer includes browsers, address books, word processing software, instant messaging software, and the like. Moreover, the embodiments of the present application do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, as long as the execution subject can communicate according to the method provided by the embodiments of the present application by running a program in which the code of the method provided by the embodiments of the present application is recorded. For example, the execution subject of the method provided by the embodiments of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute a program.

[0042] Moreover, various aspects or features of the disclosure can be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in the disclosure encompasses a computer program or other processor- executable instructions stored on or in one or more computer readable media (storage media). The computer readable media can include, for example, one or more types of removable storage media and / or built-in storage media implemented in a manufacture (e.g., hard disk drive, solid state drive, flash drive, etc.). The term "computer-readable medium" includes, but is not limited to, portable or fixed storage devices, optical storage devices, wireless channels and various other mediums capable of storing, containing, or carrying instruction(s) and / or data.

[0043] It should be noted that in the embodiments of the present application, multiple application programs can run in the application layer, and in this case, the application program that executes the communication method of the embodiments of the present application and the application program for controlling the receiving end device to complete the action corresponding to the received data can be different application programs.

[0044] Figure 1 A schematic diagram illustrating an application scenario of the embodiments of the present application is shown. As shown in the figure, Figure 1 The application scenario can include a network device 110 and a terminal device 120.

[0045] The network device 110 can be a device for communicating with the terminal device 120. For example, the network device 110 can be a base station for accessing the terminal device 120 to a radio access network (RAN). For the convenience of understanding, the embodiments of the present application take the network device 110 as a base station for example. The base station can also be referred to as an access network device or an access network node. It can be understood that in systems using different wireless access technologies, the names of devices with base station functions may be different. For the convenience of description, the apparatuses providing wireless communication access functions for terminal devices in the embodiments of the present application are collectively referred to as base stations. For example, the network device 110 can be an evolved node B (eNB) in long term evolution (LTE), can also be a next generation node base station (gNB) in the fifth generation (5G) system, can also be a transmission and reception point (TRP), or a network device in a 5G network. The network device 110 can be a macro base station or a micro base station. The coverage range of one network device 110 can include one cell or multiple cells.

[0046] The terminal device 120 can communicate with one or more core networks (CNs) through the access network device. The terminal device can also be referred to as a user equipment (UE), an access terminal, a terminal, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, a mobile device, a user terminal, a wireless network device, a user agent, or a user device. The terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device, or other devices connected to a wireless modem, an in-vehicle device, a wearable device, a drone device, or a terminal in Internet of Things, Internet of Vehicles, and any form of terminal in future networks, a relay user equipment, or a terminal in a future evolved public land mobile network (PLMN). The embodiments of the present application are not limited in this regard. For the convenience of description, the terminal device can also be referred to as a UE in the embodiments of the present application.

[0047] With the continuous development of wireless communication technology, high-speed data services and ubiquitous access demands are experiencing explosive growth, but this poses a significant contradiction with increasingly scarce spectrum resources. In an environment of increasingly saturated spectrum, the introduction of beamforming technology can achieve better cell coverage and improve spectrum utilization.

[0048] like Figure 1 As shown, network device 110 can be configured with a massive MIMO array, such as 64, 128, 256, or 1024 antennas or other numbers of antennas. Multi-antenna communication can improve spectrum utilization efficiency. The aforementioned beamforming technology is a signal processing technique used in sensor arrays for directional signal transmission or reception. It can effectively superimpose signals by adjusting the phase of each antenna, generating stronger signal gain to overcome path loss, thereby ensuring the transmission quality of wireless signals.

[0049] Beamforming technology focuses the energy of a wireless signal, forming a directional beam that concentrates the signal energy in the direction of the receiver. In other words, the beam is directional, and different beams can have different transmission directions. Generally, the narrower the beam, the greater the signal gain. If the beam's direction deviates from the receiver's, the receiver may not receive a high-quality wireless signal. Therefore, for network equipment acting as the transmitter, the network device needs to use multiple beams with different directions to fully cover the cell it serves. Figure 1 As shown in the example, network device 110 can use beams 111, 112, 113, 114, 115, 116, 117, and 118 with different orientations to transmit wireless signals in different directions. Network device 110 can also transmit beams 111, 112, 113, 114, 115, 116, 117, and 118 in a scanning manner in the time domain.

[0050] It should be understood that the number of beams on the network device side listed in the embodiments of this application is merely illustrative and does not impose any limitation on the embodiments of this application.

[0051] In the 4G era, the broadcast channel beam is beamformed into a narrow vertical and wide horizontal beam covering the entire cell. Correspondingly, the broadcast channel content only needs to be transmitted once per transmission cycle. In the 5G New Radio (NR) system, the broadcast channel, formed by beamforming, transmits a set of narrow beams in a scanning manner over a period of time. 5G MM antennas have more digital channels, allowing for more beams to be formed in the vertical plane, resulting in a wider coverage area. For example, in the sub-6GHz band, the NR protocol limits the number of beams transmitting the synchronization signal block (SSB) to a maximum of eight. The SSB contains the retrieval location for the synchronization signal and the remaining minimum system information (RMSI). The RMSI contains the system information required for the terminal to access the network. To ensure that a terminal receiving the synchronization signal can receive the system information for cell access, the coverage areas of the beams transmitting the SSB and the RMSI need to be the same. To enhance the coverage of the broadcast channel, NR typically uses beam scanning to transmit the broadcast channel content, with each beam transmitting the same content but covering different areas.

[0052] by Figure 1 Taking the example of network device 110 transmitting broadcast channel content using a scanning method, when network device 110 communicates with terminal device 120, network device 110 sequentially transmits beams 111-118 in different directions in the time domain using a scanning method. Beams 111-118 cover an area of ​​a cell. When network device 110 transmits broadcast channel content using a scanning method, it first transmits synchronization signal blocks (SSBs) sequentially to different areas through beams 111-118 in the time domain. Then, it transmits residual minimum system messages (RMSIs) using beams with the same coverage area as each of beams 111-118. Terminal device 120 sequentially scans its position in the time domain and receives SSBs and RMSIs through beams 111-118 to access network device 110.

[0053] In the prior art, when the network device 110 transmits SSB in the form of beam sweeping, the network device 110 uses beamforming to form beams 111-118 with different beam orientations to transmit SSBs in time domain in turn, and then can transmit beams 111'-118' corresponding to the coverage ranges of the beams 111-118, respectively, where the beams 111'-118' are used to transmit RMSIs in time domain in turn. Different coverage ranges of beams can be generated by setting parameters of the network device 110, for example, the weights of each element in an antenna array can be set to generate different beams, or the amplitude and phase of each element corresponding to a beam in the network device can be set to form a beam with directivity. In addition, one SSB can correspond to the time domain transmission time of multiple RMSIs. For example, the transmission time of one SSB can correspond to the transmission time slots of two RMSIs. In the prior art, in order to save overhead, the base station can select to transmit one RMSI corresponding to one SSB. When the number of SSBs is large, the time domain resource overhead of RMSI also increases. The following will combine Figure 2 and Figure 4 explain in detail the process of transmitting the remaining minimum system message between the network device 110 and the terminal device 120 to reduce the time domain resource overhead of RMSI.

[0054] Figure 2 A schematic flowchart of a method 200 for transmitting a remaining minimum system message in an embodiment of the present application is shown. As Figure 2 described, the method 200 is performed in a communication system using multiple beams, where each beam corresponds to at least two first time slots for transmitting a remaining minimum system information RMSI, and the method 200 includes:

[0055] S210, when the first time slots corresponding to N beams of the multiple beams include at least one overlapping time slot, generating a first beam, the coverage range of the first beam including the coverage range of each of the N beams, N being an integer greater than or equal to 2;

[0056] It should be understood that the first time slot is the time slot corresponding to the beam transmitting RMSI, and the first beam can be referred to as an RMSI beam.

[0057] It should also be understood that the at least one overlapping time slot is a time slot corresponding to the intersection of the first time slots of the N beams. For example, Table 1 shows the case where each beam corresponds to two first time slots, and when N is 2, beam #0 corresponds to time slot 0 and time slot 1, beam #1 corresponds to time slot 1 and time slot 2, and the overlapping time slot is time slot 1.

[0058] Table 1

[0059] Slot 0 Slot 1 Slot 2 Beam #0 Beam #0 Beam #1 Beam #1

[0060] Optionally, as shown in Table 2, when N is 2, beam #0 corresponds to time slot 0 and time slot 1, beam #1 corresponds to time slot 0 and time slot 1, and the overlapping time slots are time slot 0 and time slot 1.

[0061] Table 2

[0062] Slot 0 Slot 1 Beam #0 Beam #0 Beam #1 Beam #1

[0063] Optionally, Table 3 shows a possible case that each beam corresponds to three first time slots, when N is 2, beam #0 corresponds to time slot 0, time slot 1 and time slot 2, beam #1 corresponds to time slot 1, time slot 2 and time slot 3, and the overlapping time slots are time slot 1 and time slot 2.

[0064] Table 3

[0065]

[0066]

[0067] It should also be understood that the coverage range of the first beam includes the coverage range of each of the N beams can be that the coverage range of the first beam is the same as the coverage range of the N beams, for example, the cell position covered by the first beam is the same as the cell position covered by the N beams, specifically, the network device 110 can adjust the weighting coefficient of each element in the antenna array to generate a RMSI beam with directionality and a determined width, the width and direction of the RMSI beam are the same as the total width and total angle of the N beams covering the cell.

[0068] Optionally, the coverage range of the first beam is approximately the same as the coverage range of the N beams. Specifically, the deviation of the width and direction of the RMSI beam from the total width and total angle of the N beams covering the cell is within a preset range.

[0069] Optionally, the first beam includes N peaks, and the N peaks correspond to the N beams one by one.

[0070] It should be understood that the first beam can be formed by adjusting the network device parameters, and the first beam can have multiple different coverage ranges, and one peak can correspond to one of the multiple different coverage ranges. For example, the weighting coefficient of each element in the antenna array can be adjusted so that the first beam generated by the antenna array has different shapes, and the first beam can cover multiple different coverage ranges, and each coverage range corresponds to a peak. It should also be understood that the one-to-one correspondence between the N peaks and the N beams can mean that the coverage range of each peak in the N peaks is one-to-one corresponding to the coverage range of each beam in the N beams, and the coverage range can be the same or approximately the same, and the deviation of each peak from the width and / or angle of the corresponding beam is within a preset range. Specifically, Figure 3A schematic diagram of the coverage range correspondence in the embodiments of the present application is shown.

[0071] As shown in Figure 3 RMSI beam #0 includes peak #0 and peak #1, which correspond to different coverage ranges. The deviation of the transmission angle and width of the peak #0 of the beam #0 and the first beam is within a preset range, and the deviation of the transmission angle and width of the beam #1 (shaded area) and the peak #1 of the first beam is within a preset range. The coverage ranges of the N beams are approximately the same as that of the first beam.

[0072] Optionally, the multiple beams are used to transmit a synchronization signal block (SSB).

[0073] It should be understood that the multiple beams can be referred to as multiple SSB beams.

[0074] Optionally, each of the multiple beams can include multiple peaks. It should be understood that when the multiple beams are multi-peaks, the generated first beam coverage range includes the multiple beam coverage ranges of the multi-peaks. For example, when the beam #0 and the beam #1 each include 2 peaks, the generated first beam can include 4 peaks, and the 4 peak coverage ranges of the first beam include the coverage ranges of the beam #0 and the beam #1.

[0075] S220, in one of the at least one overlapping time slot, transmitting the RMSI through the first beam.

[0076] It should be understood that one of the at least one overlapping time slot can be time slot 1 in Table 1 or time slot 0 or time slot 1 in Table 2.

[0077] Optionally, transmitting the RMSI through the first beam can mean transmitting the RMSI through each peak in the first beam.

[0078] Figure 4 A flowchart of a method 200 for transmitting a remaining minimum system message is shown. The method 200 is performed in a communication system using multiple beams, wherein each beam corresponds to at least two first time slots for transmitting a remaining minimum system information (RMSI), and the method 200 further includes:

[0079] S230, receiving the RMSI through the first beam in one of the at least one overlapping time slot, the at least one overlapping time slot being included in the first time slots corresponding to N beams in the multiple beams, the coverage range of the first beam including the coverage range of each of the N beams, N being an integer greater than or equal to 2.

[0080] Specifically, the terminal device 120 receives the RMSI in one of the at least one overlapping slot through the first beam. For example, the terminal device 120 can detect the transmission of the RMSI in each slot position in a scanning manner in the time domain, and receive the RMSI when detecting that there is transmission of the RMSI in the slot. It should be understood that the terminal device detecting the transmission of the RMSI in the slot position in the embodiments of the present application is only illustrative, and does not cause any limitation to the embodiments of the present application.

[0081] Figure 5 A schematic diagram of the method for transmitting the minimum system message according to the embodiments of the present application is shown. As shown in the figure, Figure 5 The network device 110 transmits 8 beams SSB#0~SSB#7 in slots 0~3, the beam SSB#0 corresponds to the first slot positions of slots 10 and 11, the beam SSB#1 corresponds to the first slot positions of slots 11 and 12, and each of the beams SSB#2~SSB#7 corresponds to two first slots.

[0082] Corresponding to the coverage of SSB#0, the network device 110 can transmit the first beam RMSI#0 in slots 10 and / or 11, and corresponding to the coverage of SSB#1, the network device 110 can transmit the beam RMSI#1 in slots 11 and / or 12. The network device 110 selects the overlapping slot 11 corresponding to the beams SSB#0 and SSB#1 as the time slot for transmitting the first beam (RMSI beam), and generates the RMSI beam in the slot 11, the coverage of the RMSI beam includes the coverage of the beams SSB#0 and SSB#1.

[0083] Specifically, the RMSI beam can be a double-peak RMSI beam, or the RMSI beam is in the form of a single peak, and the coverage of the single-peak RMSI beam includes the coverage of the beams SSB#0 and SSB#1.

[0084] Preferably, the network device 110 selects slots 11, 13, 15, and 17 as the time slots for transmitting the double-peak RMSI beam.

[0085] Optionally, the network device 110 can generate the beam RMSI#0 in the slot 10; generate the double-peak RMSI beam in the slots 12, 14, and 16, respectively, and the coverage of the three double-peak RMSI beams respectively includes the coverage of the beams SSB#1 and SSB#2, the beams SSB#3 and SSB#4, and the beams SSB#5 and SSB#6; and generate the beam RMSI#7 in the slot 18.

[0086] The network device 110 can reduce the number of times of transmitting the RMSI beams in the time domain by selecting to transmit the RMSI beams covering the SSB beam coverage ranges corresponding to the overlapping time slots, thereby reducing the time domain resource overhead of the RMSI.

[0087] The above describes the method embodiments of the embodiments of the present application in detail. Figures 1-5 The method embodiments of the embodiments of the present application are described in detail below in combination with Figures 6-9 The device embodiments of the embodiments of the present application are described in detail. It should be understood that the description of the method embodiments and the description of the device embodiments correspond to each other, and therefore, the parts not described in detail can be referred to the foregoing method embodiments.

[0088] Figure 6 FIG. 1 is a schematic structural diagram of a communication device provided by the embodiments of the present application. Figure 6 The communication device 600 in FIG. 1 can be the network device mentioned above, for example, can be the network device 110. Figure 1 One specific example of the network device 110. Figure 6 The device shown in FIG. 1 can be used to implement the method performed by the network device in the above, specifically, the communication device 600 can be used to perform the method of the network device 110, and the description is not repeated to avoid redundancy. Figure 2 The method of the network device 110, and the description is not repeated to avoid redundancy.

[0089] Figure 6 The communication device 600 shown in FIG. 1 can be used to communicate using a plurality of beams, each of which corresponds to at least two first time slots for transmitting remaining minimum system information RMSI, and the communication device 600 includes a processing unit 610 and a communication unit 620.

[0090] The processing unit 610 is configured to control the generation of a first beam when the first time slots corresponding to N beams of the plurality of beams include at least one overlapping time slot, the coverage range of the first beam including the coverage range of each of the N beams, N being an integer greater than or equal to 2;

[0091] The communication unit 620 is configured to transmit the RMSI through the first beam in one of the at least one overlapping time slot.

[0092] Optionally, the transmission time slots of the N beams of the plurality of beams are continuous; and / or the transmission time slots of the N beams of the plurality of beams are the same.

[0093] Optionally, the first beam includes N peaks, the N peaks corresponding to the N beams one by one, and the communication unit is further configured to transmit the RMSI on the N peaks respectively.

[0094] Optionally, the plurality of beams are used to transmit synchronization signal blocks SSBs.

[0095] Figure 7 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application. Figure 7 The communication apparatus 700 in FIG. 7 can be the terminal device mentioned above, for example, can be a terminal device 120. Figure 1 One specific example of the terminal device 120. Figure 7 The apparatus shown can be used to implement the method performed by the terminal device above, specifically, the communication apparatus 700 can be used to perform the method of Figure 4 for brevity, the description will not be repeated.

[0096] Figure 7 The communication apparatus 700 shown can be used in a system in which multiple beams are used for communication, each beam corresponds to at least two first time slots, the first time slots are used for transmitting remaining minimum system information RMSI, the communication apparatus 700 comprises a communication unit 710.

[0097] The communication unit 710 is configured to receive the RMSI in one of at least one overlapping time slot through a first beam, the at least one overlapping time slot comprises the first time slots corresponding to N beams in the multiple beams, the coverage range of the first beam comprises the coverage range of each of the N beams, N is an integer greater than or equal to 2.

[0098] Optionally, the transmission time slots of the N beams in the multiple beams are continuous; and / or the transmission time slots of the N beams in the multiple beams are the same.

[0099] Optionally, the first beam comprises N wave crests, the N wave crests correspond to the N beams one by one, and the RMSI is received on the N wave crests respectively.

[0100] Optionally, the multiple beams are used for sending synchronization signal blocks SSBs.

[0101] Figure 8 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application. Figure 8 The communication apparatus 800 shown can correspond to the network device described above. The communication apparatus 800 comprises a processor 802. In an embodiment of the present application, the processor 802 is configured to control and manage the actions of the network device, for example, the processor 802 is configured to support the network device to perform the method in the foregoing embodiments Figure 2The method or operation or function shown, and the first time slot corresponding to the N beams in the plurality of beams determined to include at least one overlapping time slot and selecting one overlapping time slot to transmit the RMSI in the preceding embodiments, can be implemented by the network device. Optionally, the network device can further include a memory 801 and a communication interface 803; the processor 802, the communication interface 803, and the memory 801 can be connected to each other or connected to each other through a bus 804. Among them, the communication interface 703 is used to support the network device to communicate, and the memory 801 is used to store the program code and data of the network device. The processor 802 calls the code stored in the memory 801 for control management. The memory 801 can be coupled together with the processor, or can not be coupled together.

[0102] Among them, the processor 802 can be a central processor unit, a general processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic device, hardware component or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in combination with the disclosure. The processor can also be a combination of computing functions, such as one or more microprocessor combinations, digital signal processor and microprocessor combinations, etc. The communication interface 803 can be a transceiver, circuit, bus, module or other type of communication interface. The bus 804 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For convenience of representation, Figure 8 Only one thick line is used in the figure, but it does not mean that there is only one bus or only one type of bus.

[0103] Figure 9 The communication device provided by the embodiment of the application is a schematic structural diagram of the communication device. Figure 9 The communication device 900 shown can correspond to the terminal device 120 described above. The communication device 900 includes a processor 902. In the embodiment of the application, the processor 902 is used to control and manage the actions of the terminal device, for example, the processor 902 is used to support the network device to perform the method or operation or function in the preceding embodiments Figure 5The method or operation or function shown, and the first time slot for supporting the N beams corresponding to the plurality of beams in the foregoing embodiments includes at least one overlapping time slot, and the RMSI is received in one overlapping time slot. Optionally, the terminal device can further include a memory 901 and a communication interface 903; the processor 902, the communication interface 903 and the memory 901 can be connected to each other or connected to each other through a bus 904. Among them, the communication interface 903 is used to support the network device to communicate, and the memory 901 is used to store the program code and data of the network device. The processor 902 calls the code stored in the memory 901 for control management. The memory 901 can be coupled together with the processor, or can not be coupled together.

[0104] Among them, the processor 902 can be a central processor unit, a general processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic device, hardware component or any combination thereof. It can realize or execute the various exemplary logic blocks, modules and circuits described in combination with the disclosure content of the present application. The processor can also be a combination of computing functions, such as one or more microprocessor combinations, digital signal processor and microprocessor combinations, etc. The communication interface 903 can be a transceiver, circuit, bus, module or other type of communication interface. The bus 904 can be a peripheral component interconnect (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For the convenience of representation, Figure 9 In the figure, only one thick line is used to represent, but it does not mean that there is only one bus or one type of bus.

[0105] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0106] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0107] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. The division of the units is merely logical function division. There can be other division manners in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0108] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0109] In addition, each functional unit in the various embodiments of the present application can be integrated into a processing unit, or each unit can be a physically separate unit, or two or more units can be integrated into one unit.

[0110] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product, and the computer software product is stored in a storage medium, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0111] The above is merely specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of transmitting remaining minimum system information, characterized by, The method is performed in a communication system using a plurality of beams, each beam corresponding to at least two time slots, the time slots being used for transmission of remaining minimum system information, RMSI, the method comprising: generating a first beam when time slots corresponding to N beams of the plurality of beams comprise at least one overlapping time slot, a coverage range of the first beam comprising a coverage range of each of the N beams, N being an integer greater than or equal to 2; transmitting, by the first beam, the RMSI in one of the at least one overlapping time slot.

2. The method of claim 1, wherein, The transmission time slots of the N beams of the plurality of beams are consecutive; and / or The transmission time slots of the N beams of the plurality of beams are the same, wherein the transmission time slots are time slots in which synchronization signal blocks, SSBs, are transmitted.

3. The method according to claim 1 or 2, characterized in that, The first beam comprises N lobes, the N lobes corresponding one-to-one to the N beams, the RMSI being transmitted on the N lobes respectively.

4. The method of claim 3, wherein, The coverage range of the N lobes comprises the coverage range of the N beams.

5. The method of claim 4, wherein, A deviation of each of the N lobes from a transmission angle of a corresponding beam of the plurality of beams is within a preset range.

6. A method of transmitting remaining minimum system information, the method comprising: The method is performed in a communication system using a plurality of beams, each beam corresponding to at least two time slots, the time slots being used for transmission of remaining minimum system information, RMSI, the method comprising: receiving, by a first beam, the RMSI in one of at least one overlapping time slot, the at least one overlapping time slot being comprised in time slots corresponding to N beams of the plurality of beams, a coverage range of the first beam comprising a coverage range of each of the N beams, N being an integer greater than or equal to 2.

7. The method of claim 6, wherein, The transmission time slots of the N beams of the plurality of beams are consecutive; and / or The transmission time slots of the N beams of the plurality of beams are the same, wherein the transmission time slots are time slots in which synchronization signal blocks, SSBs, are transmitted.

8. The method according to claim 6 or 7, characterized in that, The first beam comprises N lobes, the N lobes corresponding one-to-one to the N beams, the RMSI being received on the N lobes respectively.

9. The method of claim 8, wherein, The coverage range of the N lobes comprises the coverage range of the N beams.

10. The method of claim 9, wherein, A deviation of each of the N lobes from a transmission angle of a corresponding beam of the plurality of beams is within a preset range.

11. A communications device, characterized by The apparatus is configured to communicate using a plurality of beams, each beam corresponding to at least two time slots, the time slots being used for transmission of remaining minimum system information, RMSI, the apparatus comprising: a processing unit configured to control generation of a first beam when time slots corresponding to N beams of the plurality of beams comprise at least one overlapping time slot, a coverage range of the first beam comprising a coverage range of each of the N beams, N being an integer greater than or equal to 2; a communication unit configured to transmit, by the first beam, the RMSI in one of the at least one overlapping time slot.

12. The apparatus of claim 11, wherein, The transmission time slots of the N beams of the plurality of beams are consecutive; and / or The transmission time slots of the N beams of the plurality of beams are the same, wherein the transmission time slots are time slots in which synchronization signal blocks, SSBs, are transmitted.

13. The apparatus of claim 11 or 12, wherein, The first beam comprises N beam peaks, the N beam peaks correspond to the N beams one by one, and the communication unit is further configured to transmit the RMSI on the N beam peaks respectively.

14. The apparatus of claim 13, wherein, The coverage of the N beam peaks comprises the coverage of the N beams.

15. The apparatus of claim 14, wherein, The deviation of each of the N beam peaks from the corresponding beam inter-transmitting angle in the plurality of beams is within a preset range.

16. A communications device, characterized by The method is performed in a communication system using a plurality of beams, each beam corresponding to at least two time slots, the time slots being used for transmitting remaining minimum system information RMSI, the apparatus comprising: The communication unit is configured to receive the RMSI through a first beam in one of at least one overlapping time slot, the at least one overlapping time slot being included in the time slots corresponding to N beams in the plurality of beams, the coverage of the first beam comprising the coverage of each of the N beams, N being an integer greater than or equal to 2.

17. The apparatus of claim 16, wherein, The transmission time slots of the N beams in the plurality of beams are consecutive; and / or The transmission time slots of the N beams in the plurality of beams are the same, wherein the transmission time slots are time slots for transmitting synchronization signal blocks SSBs.

18. The apparatus of claim 16 or 17, wherein, The first beam comprises N beam peaks, the N beam peaks correspond to the N beams one by one, and the communication unit is further configured to transmit the RMSI on the N beam peaks respectively.

19. The apparatus of claim 18, wherein, The coverage of the N beam peaks comprises the coverage of the N beams.

20. The apparatus of claim 19, wherein, The deviation of each of the N beam peaks from the corresponding beam inter-transmitting angle in the plurality of beams is within a preset range.

21. A communications device, characterized by The method comprises: The processor is configured to execute a computer program stored in the memory, so that the communication device performs the method of any one of claims 1 to 10.

22. A computer-readable storage medium, characterized in that, The computer program is stored on the computer readable storage medium, and when the computer program runs on the computer, the computer executes the method of any one of claims 1 to 10.

23. A chip system, characterized by The method comprises: The processor is configured to call and run the computer program from the memory, so that the communication device installed with the chip system performs the method of any one of claims 1 to 10.

Images