WO2018027915A1 - 信息指示装置、方法以及通信系统 - Google Patents

信息指示装置、方法以及通信系统 Download PDF

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Publication number
WO2018027915A1
WO2018027915A1 PCT/CN2016/094902 CN2016094902W WO2018027915A1 WO 2018027915 A1 WO2018027915 A1 WO 2018027915A1 CN 2016094902 W CN2016094902 W CN 2016094902W WO 2018027915 A1 WO2018027915 A1 WO 2018027915A1
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Prior art keywords
physical broadcast
time interval
time
broadcast channel
information
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PCT/CN2016/094902
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English (en)
French (fr)
Inventor
王昕�
汪巍崴
Original Assignee
富士通株式会社
王昕�
汪巍崴
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Publication date
Application filed by 富士通株式会社, 王昕�, 汪巍崴 filed Critical 富士通株式会社
Priority to PCT/CN2016/094902 priority Critical patent/WO2018027915A1/zh
Priority to JP2019506093A priority patent/JP7051812B2/ja
Priority to EP16912370.0A priority patent/EP3499749B1/en
Priority to CN201680088079.5A priority patent/CN109565343B/zh
Publication of WO2018027915A1 publication Critical patent/WO2018027915A1/zh
Priority to US16/266,907 priority patent/US11089557B2/en
Priority to US17/359,792 priority patent/US11653320B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an information indicating apparatus, method, and communication system.
  • the fifth generation (5G) or new wireless (NR, New Radio) system will use such carriers above 6 GHz to form a cellular communication system. How to improve the coverage of the cell is a challenge.
  • Beamforming using multi-antenna technology can greatly increase the transmission distance of high-frequency radio waves.
  • a so-called massive multiple input multiple output (MIMO) technique can be used to obtain a more significant antenna gain.
  • MIMO massive multiple input multiple output
  • the user equipment far away from the base station can also receive a signal of sufficient quality, thereby increasing the transmission distance of the data signal.
  • signals that need to be received by all user equipments in the cell, such as system signals (or system information), synchronization signals, control signals, and radio resource management related measurement signals.
  • system signals or system information
  • synchronization signals synchronization signals
  • control signals and radio resource management related measurement signals.
  • radio resource management related measurement signals For the sake of narrative aspects, such signals are simply referred to below as cell signals.
  • beam shaping unlike the omnidirectional antenna scheme, only the direction in which the beam is directed can receive a sufficiently strong signal.
  • beam sweeping can be used.
  • the beamforming technology is adopted, so that the beam is transmitted in different time zones in a plurality of time units in a time interval, so that the cell signal can be covered in this time interval.
  • the desired airspace range such as the entire cell or the entire sector.
  • the synchronization signal is one of the most important signals in all cell signals, and is the necessary signal for the user equipment to access the network and move in the network. From the perspective of the frame structure, for a Long Term Evolution (LTE) system or an LTE-Advanced system, the synchronization signal is only sent one time in a certain time interval (for example, half frame, 5 ms; or one frame, 10 ms), so that reception is performed.
  • the timing of the time interval (e.g., frame timing) can be inferred based on the position at which the synchronization signal is detected.
  • the synchronization signal may use multiple beams at multiple time instances or multiple time units (multiple time instances) (for example, one subframe). Time units) sent multiple times. Therefore, after the receiver determines the location of the synchronization signal by using the detection algorithm, it is also necessary to know exactly which beam the synchronization signal corresponds to, or need to know that the detected synchronization signal corresponds to the time instance of the beam sweeping process or The first few time units, in order to further infer the timing information of the time interval (such as a subframe or a frame).
  • the synchronization signal may be newly designed, or a new Transmission Time Interval (TTI) type or name may be defined, but for beam sweeping, the user equipment needs to detect the synchronization signal and obtain the transmission time. The start time of the interval.
  • TTI Transmission Time Interval
  • the acquisition of the most important system information is also an important part of the initial access.
  • the information information of the master information block (MIB) is carried on the physical broadcast channel, and includes the necessary information for the terminal to access the network, such as the system frame number SFN and the system bandwidth.
  • the NR may design a new physical broadcast channel, but if the synchronization signal is in the form of beam sweeping, the physical broadcast channel will be transmitted in this way.
  • Embodiments of the present invention provide an information indicating apparatus, method, and communication system. Even if a plurality of physical broadcast channels and a plurality of synchronization signals are transmitted at a plurality of times or a plurality of time units in one time interval, timing information of the time interval can be obtained with a simple structure and operation.
  • an information indication method which is applied to a sending end, where the information indicating method includes:
  • a plurality of physical broadcast channels and a plurality of synchronization signals are transmitted at a plurality of time units or times in a time interval; wherein timing information of the time interval is carried in each of the physical broadcast channels.
  • an information indicating apparatus includes:
  • An information transmitting unit that transmits a plurality of physical broadcasts in a plurality of time units or a plurality of times in one time interval And a plurality of synchronization signals; wherein timing information of the time interval is carried in each of the physical broadcast channels.
  • an information indication method is provided, which is applied to a receiving end, where the information indicating method includes:
  • Detecting a synchronization signal sent by the transmitting end wherein the transmitting end sends multiple physical broadcast channels and multiple synchronization signals in multiple time units or multiple times in one time interval, and each of the physical broadcast channels carries the same Timing information of the time interval;
  • an information indicating apparatus includes:
  • a synchronization signal detecting unit that detects a synchronization signal transmitted by the transmitting end; wherein the transmitting end transmits a plurality of physical broadcast channels and a plurality of synchronization signals in a plurality of time units or a plurality of times in one time interval, and each of the Timing information carrying the time interval in the physical broadcast channel;
  • An information receiving unit that receives a corresponding physical broadcast channel according to the detected synchronization signal
  • timing acquisition unit that obtains timing information of the time interval carried in the physical broadcast channel.
  • a communication system comprising:
  • a receiving end which detects a synchronization signal sent by the transmitting end, receives a corresponding physical broadcast channel according to the detected synchronization signal, and obtains timing information of the time interval carried in the physical broadcast channel.
  • An advantageous effect of the embodiments of the present invention is that multiple physical broadcast channels and multiple synchronization signals are transmitted in multiple time units or multiple times in one time interval; wherein the timing of the time interval is carried in each physical broadcast channel information.
  • FIG. 1 is a schematic diagram of a frame structure in an LTE/LTE-A system
  • FIG. 2 is a schematic diagram of transmitting a PBCH or a synchronization signal in an LTE/LTE-A system
  • FIG. 3 is a schematic diagram of a transmit beam in a beamforming system
  • FIG. 4 is a schematic diagram of transmitting a PBCH or a synchronization signal in a beamforming system
  • FIG. 5 is a schematic diagram of an information indication method according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of transmitting a physical broadcast channel and/or a synchronization signal according to an embodiment of the present invention
  • FIG. 7 is another schematic diagram of transmitting a physical broadcast channel and/or a synchronization signal according to an embodiment of the present invention.
  • FIG. 8 is another schematic diagram of an information indication method according to Embodiment 1 of the present invention.
  • FIG. 9 is a schematic diagram of a physical broadcast channel and a synchronization signal having the same interval according to Embodiment 1 of the present invention.
  • Figure 10 is a schematic diagram showing the use of a predetermined time relationship in Embodiment 1 of the present invention.
  • FIG. 11 is a schematic diagram showing a physical broadcast channel and a synchronization signal having different intervals in Embodiment 1 of the present invention.
  • FIG. 12 is a schematic diagram of timing information of a time interval according to Embodiment 1 of the present invention being explicitly carried;
  • FIG. 13 is another schematic diagram of timing information of a time interval according to Embodiment 1 of the present invention being explicitly carried;
  • FIG. 14 is a schematic diagram of an information indication method according to Embodiment 3 of the present invention.
  • Figure 15 is a schematic diagram of an information indicating apparatus according to Embodiment 4 of the present invention.
  • Figure 16 is a schematic diagram of an information indicating apparatus according to Embodiment 5 of the present invention.
  • Figure 17 is a schematic diagram of a communication system according to Embodiment 6 of the present invention.
  • Figure 18 is a schematic diagram of a base station according to Embodiment 6 of the present invention.
  • Figure 19 is a schematic diagram of a user equipment according to Embodiment 6 of the present invention.
  • a base station may be referred to as an access point, a broadcast transmitter, a transmission reception point (TRP), a Node B, an evolved Node B (eNB), etc., and may include some or all of their functions.
  • TRP transmission reception point
  • eNB evolved Node B
  • the term “base station” will be used herein. Each base station provides communication coverage for a particular geographic area.
  • the term “cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • a mobile station or device may be referred to as a "User Equipment” (UE).
  • UE User Equipment
  • a UE may be fixed or mobile and may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, and the like.
  • the UE may be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, a cordless telephone, and the like.
  • PDA personal digital assistant
  • the UE can obtain slot timing by detecting a primary synchronization signal (PSS, Primary Synchronization Signal), and obtain frame timing by a secondary synchronization signal (SSS, Secondary Synchronization Signal). . Based on slot timing and frame timing, the UE can obtain synchronization with the base station. Further, the UE needs to acquire system information (SI, system information) of the network.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • SI system information
  • FIG. 1 is a schematic diagram of a frame structure in an LTE/LTE-A system
  • FIG. 2 is a schematic diagram of transmitting a PBCH or a synchronization signal in an LTE/LTE-A system.
  • the PBCH and/or synchronization signals are transmitted only once.
  • MIB Master Information Block
  • PHICH Physical Hybrid Automation Repeat ReQuest Indicator Channel
  • SFN System Frame Number
  • PBCH Physical Broadcast Channel
  • the UE can obtain necessary parameters for demodulating the Physical Downlink Control Channel (PDCCH), and can obtain system messages such as SIB1 and SIB2, and then perform uplink random access.
  • the synchronization signal including PSS/SSS
  • PBCH are necessary signals for initial access.
  • NR New Radio
  • radio wave attenuation is very severe, resulting in a limited signal transmission distance.
  • multi-antenna technology is used to increase the coverage of radio waves by beamforming techniques.
  • a narrow beam means that the user equipment in the direction of the beam can receive a signal with better strength, and the quality of the signal received by the user equipment outside the beam range will be poor.
  • a scheduling algorithm combined with analog beamforming, digital beamforming, or hybrid beamforming, user equipment in the cell can receive quality of service. (QoS, Quality of Service) guaranteed data information.
  • QoS Quality of Service
  • the difficulty lies in the need to receive information received by all user equipments in the cell, such as the cell signal mentioned above. If the omnidirectional antenna transmission method is still adopted, the cell radius will be very small due to the propagation characteristics of the high frequency radio waves. At this time, beamforming must also be used for such signals. Analog beamforming can usually be used for such signals, but is not limited thereto.
  • beam sweeping is an effective method. That is, multiple beams are used in a certain time interval, and multiple times are transmitted in multiple time instances or multiple time units in a time division manner, so that the multiple time beams are
  • the main lobe can cover a desired area (such as a sector or a cell).
  • FIG. 3 is a schematic diagram of a transmit beam in a beamforming system.
  • the transmitter covers a sector having a rotation angle of ⁇ through a plurality of steps of time division; wherein the beam is transmitted in a time or time unit corresponding to each step of the Sweeping, Step number It can be fixed, configurable, or flexible.
  • the PSS in FIG. 1 occupies only one time unit (for example, Orthogonal Frequency Division Multiplexing (OFDM) symbol), and in the beam sweeping process of FIG. 3, the PSS needs Occupying multiple time units (symbols), SSS is the same.
  • OFDM Orthogonal Frequency Division Multiplexing
  • FIG. 4 is a schematic diagram of transmitting a PBCH or a synchronization signal in a beamforming system, and only schematically shows a case of transmitting a plurality of PBCHs or synchronization signals.
  • the PBCH and/or the synchronization signal need to be transmitted multiple times.
  • the PSS and SSS by detecting the position of the PSS and SSS The position of the frame header can be inferred, but when the beam sweeping mode is used, the user equipment cannot estimate which beam or which of the multiple time units or multiple times of the captured synchronization signal corresponds, so that the time interval cannot be inferred.
  • the head position (for example, a frame or a subframe) and establish a downlink synchronization.
  • timing information of the present invention using the physical broadcast channel to carry the time interval will be described in detail below.
  • the transmitting end may be a base station and the receiving end is a user equipment, but the present invention is not limited thereto, and the transmitting end and/or the receiving end may also be other network devices.
  • the present invention will be schematically illustrated by taking a base station and a user equipment as an example.
  • the concept or content of the present invention with respect to signals or channels may be similar to related content in LTE or LTE-A systems.
  • the present invention is not limited thereto, and may be, for example, an enhanced signal or channel, or a newly defined signal or channel.
  • the synchronization signal and the physical broadcast channel of the present invention cannot be simply considered equivalent to PSS/SSS and PBCH in LTE or LTE-A systems, but should be understood broadly.
  • FIG. 5 is a schematic diagram of an information indication method according to an embodiment of the present invention. As shown in FIG. 5, the information indication method includes:
  • Step 501 The transmitting end sends multiple physical broadcast channels and multiple synchronization signals to the receiving end in multiple time units or multiple times in a time interval.
  • the timing information of the time interval is carried in each physical broadcast channel.
  • the physical broadcast channel and the corresponding synchronization signal may be sent by the transmitting end in a shaped beam.
  • the shaped beams are transmitted in the same or different directions in a time division manner; for example, in the time interval, the shaped beams are time-divisionally fixed or configurable in a plurality of time units or Multiple times are sent in the same or different directions.
  • the present invention is not limited to, for example, the present invention is also applicable to scenes that are not beamformed.
  • each time interval may include multiple time units or multiple times; all or part of the multiple time units or multiple times may send a physical broadcast channel and/or a synchronization signal, ie, a time unit or time It may be one-to-one correspondence with physical broadcast channels and/or synchronization signals, or may not be one-to-one correspondence.
  • a certain time interval may include 10 time units, and a physical broadcast channel and a synchronization signal may be transmitted in each of the 5 time units.
  • the physical broadcast channel and the synchronization signal can be transmitted in one time unit or time, or only The physical broadcast channel is sent, or only the synchronization signal is sent; that is, the physical broadcast channel and the synchronization signal may be in one-to-one correspondence, or may not be one-to-one correspondence.
  • the number of the plurality of physical broadcast channels and the plurality of synchronization signals transmitted in one time interval may be fixed, for example, may be preset to a fixed value (ie, statically remains unchanged).
  • N physical broadcast channels and M sync signals may be transmitted; N and M may be the same value or different values.
  • the number of physical broadcast channels and synchronization signals transmitted in one TTI is fixed, which means that the number of steps (or the number of beams) of the beam sweeping process can be fixed.
  • This can bring the following advantages: for example, the time for the user equipment to search for the initial cell and the neighbor cell is controllable, and the implementation complexity of the cell search can be controlled, and the physical broadcast channel carrying time is adopted. In the mechanism of the interval timing information, such a fixed value can make the signaling overhead very small.
  • the number of physical broadcast channels and the plurality of synchronization signals transmitted in one time interval may also be configurable. For example, it may be set to a value that remains constant for a certain period of time (ie, may be semi-statically configured), or may be set to a value that varies according to an instruction (ie, may be dynamically configured).
  • the time may refer to a certain point in time. Since each signal has a certain transmission time length, the transmission time can indicate the corresponding transmission start time point when a signal is transmitted, and the duration of the transmission is determined by the length of the signal.
  • the transmission time can indicate the corresponding transmission start time point when a signal is transmitted, and the duration of the transmission is determined by the length of the signal.
  • the time interval or time unit may include any one of the following time resource units: symbol, subframe, frame, transmission time interval; but the invention is not limited thereto. It should be noted that the time interval or time unit in the embodiment of the present invention may have a hierarchical relationship, for example, a certain time interval may further include a smaller granularity time interval or time unit, and a certain time unit may also include a smaller time. The time interval or time unit of granularity.
  • the time interval may be one subframe, and the time unit may be a single symbol or multiple symbols in a subframe.
  • the signal may be sent at a certain time; each subframe may include In multiple time units, the beam changes sequentially between different time units, or the signal is utilized by multiple beams at multiple times (eg, time a, time b, time c, and time d as shown in FIG. 6) send.
  • the time interval may be one frame, and the time unit may be a sub-frame within the frame, each sub-frame containing a single physical broadcast channel and/or a synchronization signal; each frame may include multiple sub-frames, and the beams are different The sub-frames change sequentially.
  • the signal is transmitted using multiple beams at multiple times (e.g., time a, time b, time c, and time d as shown in FIG. 7).
  • FIGS. 6 and 7 only schematically illustrate the case where the present invention transmits a physical broadcast channel or a synchronization signal, but the present invention is not limited thereto.
  • the time interval and time unit in the embodiment of the present invention only represents a affiliation defined for convenience of expression. The specific meaning of the time interval and the time unit is not limited, and may be determined according to an actual scenario.
  • the timing information of the time interval may include: location information of a time unit in which the physical broadcast channel is located in the time interval; or the physical broadcast channel is in the time interval. Transmitting time information; or transmission order information of a time unit in which the physical broadcast channel is located in the time interval.
  • the broadcast channel includes sequence information corresponding to "3".
  • each physical broadcast channel may correspond to a certain synchronization signal, and the physical broadcast channel and the corresponding synchronization signal have a predetermined time relationship. That is, the distance between the synchronization signal and the physical broadcast channel in the time domain is fixed; for example, similar to the LTE system, the two are adjacent in the time domain, but the invention is not limited thereto, and may be non-adjacent. of.
  • the timing information of the time interval may further include: location information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval; corresponding to the physical broadcast channel The transmission time message of the synchronization signal in the time interval; or the transmission order information of the time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval.
  • FIG. 8 is another schematic diagram of an information indication method according to an embodiment of the present invention. The entire process is illustrated by taking a base station and a user equipment as an example. As shown in FIG. 8, the information indication method includes:
  • Step 801 The base station sends multiple physical broadcast channels and multiple synchronization signals to the user equipment in multiple time units of one time interval.
  • the timing information of the time interval is carried in each physical broadcast channel.
  • Step 802 The user equipment detects a synchronization signal sent by the base station.
  • Step 803 The user equipment receives a corresponding physical broadcast channel according to the detected synchronization signal
  • Step 804 The user equipment obtains timing information of the time interval carried in the physical broadcast channel.
  • FIG. 8 is only illustrative of an embodiment of the invention, but the invention is not limited thereto.
  • the order of execution between the various steps can be appropriately adjusted, and other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can appropriately modify the above based on the above contents, and are not limited to the description of the above drawings.
  • the physical broadcast channel and the synchronization signal may have the same interval (eg, the same transmission time interval and/or transmission direction), for example, the physical broadcast channel and the synchronization signal may be in one-to-one correspondence.
  • FIG. 9 is a schematic diagram of a plurality of physical broadcast channels and a plurality of synchronization signals having the same interval between embodiments of the present invention.
  • the physical broadcast channel and the synchronization signal can use the same beam sweeping process to complete the sweeping with the same beam sweeping time domain interval and spatial interval.
  • the physical broadcast channel corresponding to each beam is independently self-decodeable, but the invention is not limited thereto.
  • FIG. 10 is a schematic diagram showing the use of a predetermined time relationship according to an embodiment of the present invention, showing a case where the user equipment as the receiving end obtains the timing information of the time interval by the synchronization detection.
  • the position of the strongest synchronization signal can be located by the highest correlation value, as shown by 1 in FIG.
  • the position of the corresponding physical broadcast channel can be inferred from the synchronization signal position, as shown by 2 in FIG.
  • the timing information of the time interval carried by the physical broadcast channel can be recovered; the manner of the bearer may be explicit or implicit, as will be described later.
  • the beam sweeping corresponding manner may be a multi-beam continuous change in a time interval (such as a subframe) in FIG. 6 in units of a physical broadcast channel and/or a synchronization signal duration, or may be in FIG. 7 The change of multiple beams in subframes within a time interval (such as a frame).
  • the location information of the time unit of the physical broadcast channel in the time interval or the time information sent by the physical broadcast channel may be inferred, as shown by 3 in FIG.
  • information about the start position of the time unit of the synchronization signal with respect to the time interval can be obtained; or the time information transmitted by the synchronization signal is as shown by 4 in FIG.
  • the user equipment can be synchronized with the base station.
  • the synchronization signal may adopt a secondary synchronization signal structure such as an LTE system PSS/SSS, or may adopt another new synchronization signal structure such as a primary synchronization signal structure.
  • the synchronization sequence used may be a sequence consistent with the LTE system or a new synchronization signal sequence.
  • the synchronization signal may be the same as the LTE system occupying 6 resource blocks (RBs) near the center of the carrier. Resource Block), or it can be in other locations on the carrier.
  • RBs resource blocks
  • the present invention is not limited thereto, and a specific synchronization signal structure may be determined according to actual conditions.
  • the physical broadcast channel may follow the basic structure of the PBCH in the LTE system, or may adopt a new structure, including adopting different code modulation modes, occupied symbol lengths, bandwidths, and the like.
  • the relationship between the time-frequency position at which the physical broadcast channel is located and the position of the synchronization signal may be predefined.
  • the plurality of physical broadcast channels and the plurality of synchronization signals may also not have the same interval (eg, different transmission time intervals and/or transmission directions).
  • FIG. 11 is a schematic diagram of different physical broadcast channels and multiple synchronization signals having different intervals between embodiments of the present invention. As shown in FIG. 11, the beam sweeping time interval used by the synchronization signal and the physical broadcast channel is different. However, as long as the related information is predefined, the user equipment as the receiving end can search for the location of the corresponding physical broadcast channel by means of blind detection.
  • the following is a description of how the timing information of the time interval is carried by the physical broadcast channel.
  • the time interval timing information may be explicitly indicated by one or more bits added in the physical broadcast channel. For example, location information indicating that the time unit of the physical broadcast channel is in the upper time interval may be added to the MIB message.
  • FIG. 12 is a schematic diagram of timing information of a time interval explicitly carried in an embodiment of the present invention. As shown in FIG. 12, a start symbol (time unit) indicating that the physical broadcast channel occupies may be introduced in the MIB information. The position information of the head of the previous time interval (for example, a subframe).
  • each physical broadcast channel has 4 symbols, every 6 The symbols have one physical broadcast channel, and each physical broadcast channel starts to transmit in the third symbol of the six symbols.
  • the first two symbols are synchronization signals, and 5 bits can be added to the MIB information to indicate the position. information.
  • the corresponding MIB information is '01000', indicating that the distance from the start position of the time interval is 8 symbols.
  • the method of the above example can be used when the number of beams in beam sweeping is not fixed. When the symbol length is constant, this method can also indicate the starting moment of the corresponding beam of the symbol. Similarly, this method can also be used to indicate the position of the synchronization signal.
  • the number of beams in the beam sweeping is fixed, that is, the number of physical broadcast channels and synchronization signals that are equivalently transmitted in one time interval is fixed, so that the physical broadcast channel and/or the physical broadcast channel can be additionally added to the MIB information.
  • the information sent by the sync signal a few times during a certain time interval.
  • FIG. 13 is another schematic diagram of the time interval timing information being explicitly carried in the embodiment of the present invention.
  • the channel and synchronization signals by introducing 2 bits, can represent the location of the physical broadcast channel and/or the synchronization signal, ie, the transmission order information.
  • the corresponding MIB information is '01'.
  • the overhead of such additional signaling is small.
  • the time and complexity required for the cell search on the user equipment side is also relatively controllable.
  • Figures 12 and 13 may also correspond to the embodiment of Figure 6 or Figure 7.
  • a certain time interval e.g., a sub-frame
  • multiple beams are continuously varied over a plurality of time units, where the interval of beam changes is the duration of the physical broadcast channel and/or synchronization signal.
  • a certain time interval e.g., a frame
  • multiple beams are continuously changed in a plurality of time units (e.g., sub-frames), where the interval of the beam change is a sub-frame, and the beam direction in the sub-frame is fixed.
  • the MIB information indication can also be employed for the example shown in FIG.
  • the MIB information indication can also be employed for the example shown in FIG.
  • the subframe only a single physical broadcast channel and/or synchronization signal is included, and the distance relationship with the subframe header is preset.
  • 4 bits in the MIB can be used to indicate the subframe position corresponding to each beam.
  • the representation of the above transmission order can still be used.
  • the introduction of 2 bits can physically broadcast the transmission sequence information of the channel and/or the synchronization signal.
  • Corresponding MIB information is '01' corresponding to the second beam (or its corresponding physical broadcast channel and/or synchronization signal).
  • timing information of the time interval may be implicitly indicated by encoding or modulation information of the physical broadcast channel.
  • the coding or modulation information may be, for example, a scrambling sequence for modulating the physical broadcast channel, or may be a Cyclic Redundancy Check (CRC) code, etc.; however, the present invention is not limited thereto.
  • different scrambling sequences may be used in the encoding or modulation process, and may be carried on the physical broadcast channel by using different CRC masks or the like.
  • the manner of carrying the information is similar to the manner in which the PBCH of the LTE system carries the lowest bit information of the SFN and the information carrying the antenna port information, and the receiver needs to be detected by using a blind detection method, and the specific content is not described in detail herein.
  • the physical broadcast channel in each beam sweeping step is independently decodable, carrying information related to the timing of the time interval. For example, the location of the time unit in its upper level interval can be indicated.
  • the time unit in which the physical broadcast channel is located may correspond to the start symbol position of the physical broadcast channel
  • the upper time interval may be a time domain resource unit whose subframe or TTI is higher than the symbol.
  • the time unit in which the physical broadcast channel is located may also be the location of the subframe or TTI where the physical broadcast channel is located.
  • the upper time interval may be a time domain resource unit whose frame is equal to a subframe or a TTI higher.
  • the location may correspond to an absolute time position of a start symbol of the physical broadcast channel in a previous time interval (eg, a subframe or a TTI), or correspond to a start of the physical broadcast channel.
  • a previous time interval eg, a subframe or a TTI
  • the location herein may also correspond to an absolute time position of a subframe or TTI in which the physical broadcast channel is located in a previous time interval (eg, a frame); or a subframe or TTI in which the physical broadcast channel is located relative to the previous one.
  • the timing information carried by the physical broadcast channel may indicate that the physical broadcast channel corresponds to the first few transmissions within a certain time interval.
  • the physical broadcast channel may be instructed to transmit in a time interval such as one subframe or TTI, or may indicate that the time interval of the subframe or TTI in which the physical broadcast channel is located is in the upper time interval (eg, frame). The first few times sent.
  • multiple physical broadcast channels and multiple synchronization signals are transmitted in multiple time units or multiple times in one time interval; wherein the timing information of the time interval is carried in each physical broadcast channel.
  • the embodiment of the present invention further describes the timing information of the time interval based on the first embodiment.
  • the same contents of the second embodiment and the first embodiment will not be described again.
  • the timing information of the time interval may include: timing information of the physical broadcast channel in the time interval, and/or timing information of the synchronization signal in the time interval.
  • the present invention is not limited thereto, and for example, time information of the start position of the time interval may be directly included in the physical broadcast channel.
  • the timing information of the time interval will be specifically described below.
  • the time interval timing information may be related information of a physical broadcast channel.
  • the timing information of the time interval may include: location information of a time unit in which the physical broadcast channel is located in the time interval; or the physical broadcast channel is at the time interval. Transmission time information in the medium; or transmission order information of the time unit in which the physical broadcast channel is located in the time interval.
  • the timing information of the time interval may also be: a time unit in which the physical broadcast channel is located or a relative time information of a transmission time of the physical broadcast channel relative to a start position of the time interval.
  • the timing information of the time interval may be related information of the synchronization signal. That is, since the synchronization signal has a fixed timing relationship with the physical broadcast channel, the physical broadcast channel can directly carry the timing message of the synchronization signal.
  • the timing information of the time interval may indicate: location information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval; and a synchronization signal corresponding to the physical broadcast channel. a transmission time message in the time interval; or a transmission order information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval;
  • the timing information of the time interval may be: a time unit in which the synchronization signal corresponding to the physical broadcast channel is located or relative time information of a transmission time of the synchronization signal with respect to a start position of the time interval.
  • the timing information of the synchronization signal may be carried on the physical broadcast channel explicitly or implicitly. Timing information for the time interval may be explicitly indicated by one or more bits added in the physical broadcast channel. For example, a bit may be added to the MIB message to indicate: location information of the time unit of the synchronization signal at the upper time interval; or a bit is added to indicate location information of the synchronization time of the synchronization signal at the upper time interval.
  • the timing information of the time interval is implicitly indicated by the coding or modulation information of the physical broadcast channel.
  • the CRC of the physical broadcast channel implicitly indicates: the location information of the time unit of the synchronization signal at the upper time interval; or the bit is added to indicate the location information of the transmission time of the synchronization signal at the upper time interval.
  • the embodiment of the invention provides an information indication method, which is described from the receiving end (for example, user equipment).
  • the receiving end for example, user equipment.
  • the same content of the embodiment of the present invention and the first and second embodiments will not be described again.
  • FIG. 14 is a schematic diagram of an information indication method according to an embodiment of the present invention. As shown in FIG. 14, the information indication method includes:
  • Step 1401 The receiving end detects a synchronization signal sent by the transmitting end, where the transmitting end sends multiple physical broadcast channels and multiple synchronization signals in multiple time units or multiple times in one time interval, and each physical broadcast channel Carrying timing information of the time interval;
  • Step 1402 The receiving end receives a corresponding physical broadcast channel according to the detected synchronization signal
  • Step 1403 The receiving end obtains timing information of the time interval carried in the physical broadcast channel.
  • the number of the plurality of physical broadcast channels and the plurality of synchronization signals transmitted in one time interval may be fixed or may be configurable.
  • the timing information of the time interval may include: timing information of the physical broadcast channel in the time interval, and/or timing information of the synchronization signal in the time interval.
  • the present invention is not limited thereto, and may be other information indicating the timing of the time interval.
  • the timing information of the time interval may include: location information of a time unit in which the physical broadcast channel is located in the time interval; or where the physical broadcast channel is located Transmission order information of the time unit in the time interval; transmission time information of the physical broadcast channel in the time interval; or a time unit in which the physical broadcast channel is located or a transmission time of the physical broadcast channel relative to Relative time information of the starting position of the time interval.
  • each physical broadcast channel may correspond to a certain synchronization signal, and the physical broadcast channel and the corresponding synchronization signal have a predetermined time relationship.
  • the physical broadcast channel and the synchronization signal may have the same transmission interval or different transmission intervals, but the present invention is not limited thereto.
  • the timing information of the time interval may further include: location information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval; or Transmitting order information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval; or transmission time information of the synchronization signal corresponding to the physical broadcast channel in the time interval; or the physical broadcast channel The relative time information of the time unit in which the corresponding synchronization signal is located or the transmission time of the synchronization signal with respect to the start position of the time interval.
  • each time interval may include multiple time units or multiple times; the time interval or the time unit may be any one of the following time resource units: symbol, subframe, frame, transmission Time interval, but the invention is not limited thereto.
  • the timing information of the time interval may be explicitly indicated by one or more bits added in the physical broadcast channel.
  • the timing information of the time interval may be implicitly indicated by encoding or modulation information of the physical broadcast channel.
  • the physical broadcast channel and the corresponding synchronization signal may be sent by the transmitting end in a shaped beam.
  • the shaped beams can be transmitted in the same or different directions in a time division manner.
  • the shaped beam is transmitted in the same or different directions in a time division manner at a plurality of fixed or configurable time units or times.
  • multiple physical broadcast channels and multiple synchronization signals are transmitted in multiple time units or multiple times in one time interval; wherein the timing information of the time interval is carried in each physical broadcast channel.
  • the embodiment of the invention provides an information indicating device, which is configured at a transmitting end (for example, a base station).
  • a transmitting end for example, a base station.
  • the embodiment of the present invention corresponds to the information indicating method in Embodiment 1, and the same content is not described herein again.
  • FIG. 15 is a schematic diagram of an information indicating apparatus according to an embodiment of the present invention. As shown in FIG. 15, the information indicating apparatus 1500 includes:
  • the information transmitting unit 1501 transmits a plurality of physical broadcast channels and a plurality of synchronization signals in a plurality of time units or a plurality of times in a time interval; wherein timing information of the time interval is carried in each of the physical broadcast channels .
  • the number of the plurality of physical broadcast channels and the plurality of synchronization signals transmitted in one time interval may be fixed or may be configurable.
  • the timing information of the time interval may include: timing information of the physical broadcast channel in the time interval, and/or timing information of the synchronization signal in the time interval.
  • the present invention is not limited thereto, and may be other information indicating the timing of the time interval.
  • the timing information of the time interval may include: location information of a time unit in which the physical broadcast channel is located in the time interval; or where the physical broadcast channel is located Transmission sequence information of the time unit in the time interval; the physical broadcast channel is at the time The transmission time information in the interval; or the time unit in which the physical broadcast channel is located or the relative time information of the transmission time of the physical broadcast channel with respect to the start position of the time interval.
  • each physical broadcast channel may correspond to a certain synchronization signal, and the physical broadcast channel and the corresponding synchronization signal have a predetermined time relationship.
  • the physical broadcast channel and the synchronization signal may have the same transmission interval or different transmission intervals, but the present invention is not limited thereto.
  • the timing information of the time interval may further include: location information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval; or Transmitting order information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval; or transmission time information of the synchronization signal corresponding to the physical broadcast channel in the time interval; or the physical broadcast channel The relative time information of the time unit in which the corresponding synchronization signal is located or the transmission time of the synchronization signal with respect to the start position of the time interval.
  • each time interval may include multiple time units or multiple times; the time interval or the time unit may be any one of the following time resource units: symbol, subframe, frame, transmission Time interval, but the invention is not limited thereto.
  • the timing information of the time interval may be explicitly indicated by one or more bits added in the physical broadcast channel.
  • the timing information of the time interval may be implicitly indicated by encoding or modulation information of the physical broadcast channel.
  • the physical broadcast channel and the corresponding synchronization signal may be sent by the transmitting end in a shaped beam.
  • the shaped beams can be transmitted in the same or different directions in a time division manner.
  • the shaped beam is transmitted in the same or different directions in a time division manner at a plurality of fixed or configurable time units or times.
  • multiple physical broadcast channels and multiple synchronization signals are transmitted in multiple time units or multiple times in one time interval; wherein the timing information of the time interval is carried in each physical broadcast channel.
  • the embodiment of the invention provides an information indicating device, which is configured at a receiving end (for example, a user equipment).
  • a receiving end for example, a user equipment.
  • This invention corresponds to the information indicating method in Embodiment 2, and the same content is not described again.
  • FIG. 16 is a schematic diagram of an information indicating apparatus according to an embodiment of the present invention. As shown in FIG. 16, the information indicating apparatus 1600 includes:
  • a synchronization signal detecting section 1601 that detects a synchronization signal transmitted by the transmitting end; wherein the transmitting end transmits a plurality of physical broadcast channels and a plurality of synchronization signals in a plurality of time units or a plurality of times in one time interval, and each physical Timing information carrying the time interval in the broadcast channel;
  • An information receiving unit 1602 that receives a corresponding physical broadcast channel according to the detected synchronization signal
  • the timing obtaining unit 1603 obtains timing information of the time interval carried in the physical broadcast channel.
  • the number of the plurality of physical broadcast channels and the plurality of synchronization signals transmitted in one time interval may be fixed or may be configurable.
  • the timing information of the time interval may include: timing information of the physical broadcast channel in the time interval, and/or timing information of the synchronization signal in the time interval.
  • the present invention is not limited thereto, and may be other information indicating the timing of the time interval.
  • the timing information of the time interval may include: location information of a time unit in which the physical broadcast channel is located in the time interval; or where the physical broadcast channel is located Transmission order information of the time unit in the time interval; transmission time information of the physical broadcast channel in the time interval; or a time unit in which the physical broadcast channel is located or a transmission time of the physical broadcast channel relative to Relative time information of the starting position of the time interval.
  • each physical broadcast channel may correspond to a certain synchronization signal, and the physical broadcast channel and the corresponding synchronization signal have a predetermined time relationship.
  • the physical broadcast channel and the synchronization signal may have the same transmission interval or different transmission intervals, but the present invention is not limited thereto.
  • the timing information of the time interval may further include: location information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval; or Transmitting order information of a time unit in which the synchronization signal corresponding to the physical broadcast channel is located in the time interval; or transmission time information of the synchronization signal corresponding to the physical broadcast channel in the time interval; or the physical broadcast channel The relative time information of the time unit in which the corresponding synchronization signal is located or the transmission time of the synchronization signal with respect to the start position of the time interval.
  • each time interval may include multiple time units or multiple times; the time interval or the time unit may be any one of the following time resource units: symbol, subframe, frame, transmission Time Separate, but the invention is not limited thereto.
  • the timing information of the time interval may be explicitly indicated by one or more bits added in the physical broadcast channel.
  • the timing information of the time interval may be implicitly indicated by encoding or modulation information of the physical broadcast channel.
  • the physical broadcast channel and the corresponding synchronization signal may be sent by the transmitting end in a shaped beam.
  • the shaped beams can be transmitted in the same or different directions in a time division manner.
  • the shaped beam is transmitted in the same or different directions in a time division manner at a plurality of fixed or configurable time units or times.
  • multiple physical broadcast channels and multiple synchronization signals are transmitted in multiple time units or multiple times in one time interval; wherein the timing information of the time interval is carried in each physical broadcast channel.
  • the embodiment of the present invention further provides a communication system, and the same contents as those of Embodiments 1 to 5 are not described herein.
  • the pass can include:
  • a receiving end which detects a synchronization signal sent by the transmitting end, receives a corresponding physical broadcast channel according to the detected synchronization signal, and obtains timing information of the time interval carried in the physical broadcast channel.
  • the transmitting end may be a base station, and the receiving end may be a user equipment; however, the present invention is not limited thereto.
  • FIG. 17 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • the schematic diagram illustrates the case where the transmitting end is a base station and the receiving end is a user equipment.
  • the communication system 1700 can include a base station 1701 and a user equipment 1702.
  • the base station 1701 may be configured with the information indicating device 1500 as described in Embodiment 3; the user equipment 1702 may be configured with the information indicating device 1600 as described in Embodiment 4.
  • the embodiment of the present invention further provides a transmitting end, which may be, for example, a base station, but the present invention is not limited thereto, and may be other network devices.
  • a transmitting end which may be, for example, a base station, but the present invention is not limited thereto, and may be other network devices.
  • the following takes a base station as an example for description.
  • FIG. 18 is a schematic diagram showing the structure of a base station according to an embodiment of the present invention.
  • the base station 1800 can include: A central processing unit (CPU) 200 and a memory 210; the memory 210 is coupled to the central processing unit 200.
  • the memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200.
  • the central processing unit 200 can be configured to implement the information indication method described in Embodiment 1.
  • the central processor 200 can be configured to perform control of transmitting a plurality of physical broadcast channels and a plurality of synchronization signals at a plurality of time units or times in a time interval; wherein each physical broadcast channel carries a plurality of The timing information of the time interval.
  • the base station 1800 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the base station 1800 does not have to include all of the components shown in FIG. 18; in addition, the base station 1800 may also include components not shown in FIG. 18, and reference may be made to the prior art.
  • the embodiment of the present invention further provides a receiving end, which may be, for example, a user equipment, but the present invention is not limited thereto, and may be other network devices.
  • a receiving end which may be, for example, a user equipment, but the present invention is not limited thereto, and may be other network devices.
  • the following uses the user equipment as an example for description.
  • FIG. 19 is a schematic diagram of a user equipment according to an embodiment of the present invention.
  • the user device 1900 can include a central processing unit 100 and a memory 140; the memory 140 is coupled to the central processing unit 100.
  • the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.
  • the central processing unit 100 may be configured to implement the information indication method described in Embodiment 2.
  • the central processing unit 100 may be configured to perform control of detecting a synchronization signal transmitted by the transmitting end, receiving a corresponding physical broadcast channel according to the detected synchronization signal, and obtaining a timing of a time interval carried in the physical broadcast channel. information.
  • the user equipment 1900 may further include: a communication module 110, an input unit 120, a display 160, and a power source 170.
  • the functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the user equipment 1900 does not have to include all the components shown in FIG. 19, and the above components are not necessary; in addition, the user equipment 1900 may further include components not shown in FIG. There are technologies.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in an information indicating device or a transmitting end, the program causes the information indicating device or the transmitting end to execute the information indication described in Embodiment 1 method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the information indicating device or the transmitting end to execute the information indicating method described in Embodiment 1.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in an information indicating device or a receiving end, the program causes the information indicating device or the receiving end to execute the information indication described in Embodiment 2 method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the information indicating device or the receiving end to execute the information indicating method described in Embodiment 2.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • the information transmission method/device described in connection with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams shown in FIG. 15 and/or one or more combinations of functional block diagrams may correspond to various software modules of a computer program flow, or Corresponds to each hardware module.
  • These software modules may correspond to the respective steps shown in FIG. 5, respectively.
  • These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • the software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • Functional side described with reference to the drawings One or more of the blocks and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, and a communication with a DSP.
  • microprocessors or any other such configuration may be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, and a communication with a DSP.

Abstract

一种信息指示装置、方法以及通信系统。所述信息指示方法包括：在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中，每一物理广播信道中承载所述时间间隔的定时信息。由此，即使在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，也能以简单的结构和操作获得所述时间间隔的定时信息。

Description

信息指示装置、方法以及通信系统 技术领域
本发明涉及通信技术领域，特别涉及一种信息指示装置、方法以及通信系统。
背景技术
对于高频无线通信系统，例如厘米波或者毫米波的波段，由于物理传播特性的限制，无线信号随距离的增加而衰减得非常迅速。第五代(5G)或新无线(NR，New Radio)系统将会采用这类的高于6GHz的载波组成蜂窝通信系统，如何提升小区的覆盖是一个挑战。
采用多天线技术进行波束赋型(beamforming)，可以大幅度提升高频无线电波的传输距离。特别是采用所谓大规模(massive)多输入多输出(MIMO，Multiple Input Multiple Output)技术，可以获得更为显著的天线增益。
通过对发送给用户设备的数据进行beamforming或预编码(precoding)，可以使离基站较远的用户设备也能收到质量足够好的信号，因而提升了数据信号的传输距离。但是，对于需要小区内所有用户设备都需要收到的信号，例如系统信号(或系统信息)、同步信号、控制信号、无线资源管理相关的测量信号等，存在广域覆盖的问题。为叙述方面，以下将这类信号简称为小区信号。
当采用波束(beam)赋型后，不同于全向天线的方案，只有波束指向的方向可以接收到足够强的信号。为了使小区内的所有用户设备都能可靠地接收到小区信号，可以采用beam sweeping的方式。对于小区信号，采用波束赋型技术，使波束在某一时间间隔内，按时分的方式，在多个时间单元，依次在不同的空域方向进行发送；这样在这一时间间隔内小区信号可以覆盖到期望的空域范围，比如整个小区或者是整个扇区。
同步信号是所有小区信号中最重要的信号之一，是用户设备接入到网络以及在网络中移动的必要信号。从帧结构来看，对于长期演进(LTE，Long Term Evolution)系统或者LTE-Advanced系统，同步信号在一定时间间隔(例如半帧，5ms；或一帧，10ms)内只发送一份，这样接收机根据检测到同步信号的位置可以推断出时间间隔的定时(例如帧定时)。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
但是发明人发现：例如采用beam sweeping时，同步信号可能在某个时间间隔(例如一个子帧)中采用多个波束(multiple beams)在多个时刻(multiple time instances)或多个时间单元(multiple time units)多次发送。这样接收机通过检测算法判定同步信号所在位置后，还需要准确地知道该同步信号对应的是哪个波束，或者需要知道检测到的同步信号对应beam sweeping过程中的第几个时刻(time instance)或第几个时间单元，只有这样才能进一步推知时间间隔(例如子帧或帧)的定时信息。
对于NR系统，同步信号可能会进行新的设计，也可能会定义新的传输时间间隔(TTI，Transmission Time Interval)类型或名称，但对于beam sweeping，用户设备都需要检测出同步信号并获得传输时间间隔起始时刻。
另一方面，最重要的系统信息的获取也是初始接入的重要部分。在LTE系统中，主信息块(MIB，Master Information Block)信息是承载在物理广播信道的，其中包括了系统帧号SFN，系统带宽等终端接入网络的必要信息。NR可能会设计新的物理广播信道，但如果同步信号采用beam sweeping的方式，物理广播信道也会相应的采用这样的方式来进行传输。
本发明实施例提供一种信息指示装置、方法以及通信系统。即使在一个时间间隔中的多个时刻或多个时间单元发送多个物理广播信道和多个同步信号，也能以简单的结构和操作获得所述时间间隔的定时信息。
根据本发明实施例的第一个方面，提供一种信息指示方法，应用于发送端，所述信息指示方法包括：
在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中，每一所述物理广播信道中承载所述时间间隔的定时信息。
根据本发明实施例的第二个方面，提供一种信息指示装置，配置于发送端，所述信息指示装置包括：
信息发送部，其在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播 信道和多个同步信号；其中，每一所述物理广播信道中承载所述时间间隔的定时信息。
根据本发明实施例的第三个方面，提供一种信息指示方法，应用于接收端，所述信息指示方法包括：
检测发送端发送的同步信号；其中所述发送端在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，并且每一所述物理广播信道中承载所述时间间隔的定时信息；
根据检测到的同步信号接收对应的物理广播信道；以及
获得所述物理广播信道中承载的所述时间间隔的定时信息。
根据本发明实施例的第四个方面，提供一种信息指示装置，配置于接收端，所述信息指示装置包括：
同步信号检测部，其检测发送端发送的同步信号；其中所述发送端在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，并且每一所述物理广播信道中承载所述时间间隔的定时信息；
信息接收部，其根据检测到的同步信号接收对应的物理广播信道；以及
定时获得部，其获得所述物理广播信道中承载的所述时间间隔的定时信息。
根据本发明实施例的第五个方面，提供一种通信系统，所述通信系统包括：
发送端，在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中每一所述物理广播信道中承载所述时间间隔的定时信息；
接收端，其检测所述发送端发送的同步信号，根据检测到的同步信号接收对应的物理广播信道；以及获得所述物理广播信道中承载的所述时间间隔的定时信息。
本发明实施例的有益效果在于：在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中，每一物理广播信道中承载所述时间间隔的定时信息。由此，即使在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，也能以简单的结构和操作获得所述时间间隔的定时信息。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的 特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是LTE/LTE-A系统中帧结构的示意图；
图2是LTE/LTE-A系统中发送PBCH或同步信号的示意图；
图3是波束赋型系统中发送波束的示意图；
图4是波束赋型系统中发送PBCH或同步信号的示意图；
图5是本发明实施例1的信息指示方法的示意图；
图6是本发明实施例的发送物理广播信道和/或同步信号的示意图；
图7是本发明实施例的发送物理广播信道和/或同步信号的另一示意图；
图8是本发明实施例1的信息指示方法的另一示意图；
图9是本发明实施例1的物理广播信道和同步信号具有相同间隔的示意图；
图10是本发明实施例1的使用预定的时间关系的示意图；
图11是本发明实施例1的物理广播信道和同步信号具有不同间隔的示意图；
图12是本发明实施例1的时间间隔的定时信息被显式地承载的示意图；
图13是本发明实施例1的时间间隔的定时信息被显式地承载的另一示意图；
图14是本发明实施例3的信息指示方法的示意图；
图15是本发明实施例4的信息指示装置的示意图；
图16是本发明实施例5的信息指示装置的示意图；
图17是本发明实施例6的通信系统的示意图；
图18是本发明实施例6的基站的示意图；
图19是本发明实施例6的用户设备的示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请中，基站可以被称为接入点、广播发射机、收发节点(TRP，transmission reception point)、节点B、演进节点B(eNB)等，并且可以包括它们的一些或所有功能。在文中将使用术语“基站”。每个基站对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本申请中，移动站或设备可以被称为“用户设备”(UE，User Equipment)。UE可以是固定的或移动的，并且也可以称为移动台、终端、接入终端、用户单元、站等。UE可以是蜂窝电话、个人数字助理(PDA)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话等。
在LTE/LTE-A系统中，UE可通过检测主同步信号(PSS，Primary Synchronization Signal)获得时隙定时(slot timing)，通过辅同步信号(SSS，Secondary Synchronization Signal)获得帧定时(Frame timing)。基于时隙定时和帧定时，UE可以获得和基站间的同步。进一步地，UE需要获取网络的系统信息(SI，system information)。
图1是LTE/LTE-A系统中帧结构的示意图，图2是LTE/LTE-A系统中发送PBCH或同步信号的示意图。如图1和2所示，在一个传输时间间隔(例如一个子帧)中，PBCH和/或同步信号(包括PSS/SSS)只发送一次。
SI中最重要的是主信息块(MIB，Master Information Block)信息，该MIB信息包含了初始接入小区所必要的参数信息。例如，系统带宽、物理混合自动重传指示信道(PHICH，Physical Hybrid Automation Repeat reQuest Indicator Channel)大小、系统帧号(SFN，System Frame Number)，等等。MIB信息由物理广播信道(PBCH，Physical Broadcast Channel)承载。
由此，UE可以获得解调物理下行控制信道(PDCCH，Physical Downlink Control Channel)的必要参数，进而可以获得SIB1、SIB2等系统消息，之后可以进行上行随机接入。在这一系列的过程中，同步信号(包括PSS/SSS)和PBCH是初始接入的必要信号。
在第五代(5G)系统或依据第三代合作伙伴计划(3GPP，3rd Generation Partnership  Project)命名的NR(New Radio)系统中，会采用高于6GHz的频段作为载波，也有提高可靠性以及提供覆盖范围的需求。这时，初始接入所必须的同步信号和PBCH需要新的设计。
举例说来，对于高频无线通信，例如厘米波或毫米波的通信，无线电波衰减非常严重，导致信号传输距离受限。为此会采用多天线技术通过波束赋型技术来增加无线电波的覆盖范围。
但问题是，窄波束意味着在波束指向方向的用户设备能收到强度较好的信号，波束范围外的用户设备接收信号的质量会很差。对于数据传输，通过设计调度算法，结合模拟波束赋型(analog beamforming)、数字波束赋型(digital beamforming)、或者混合波束赋型(hybrid beamforming)，可以使小区内的用户设备接收到有服务质量(QoS，Quality of Service)保证的数据信息。
困难在于需要小区内所有用户设备都收到的信息，如前面提到的小区信号，，如果仍然采用全向天线发送的方式，由于高频电波的传播特性，小区半径会非常小。这时也必须对这类信号采用波束赋型的方式，通常可以对这类信号使用模拟波束赋型，但不限于此。
随之带来的问题是：在波束赋型时，只能保证某一角度范围内的用户设备可以收到足够强度的无线信号并恢复出发送信息。要覆盖到其他角度，采用beam sweeping是一种有效的方法。即在某个时间间隔中采用多个波束(multiple beams)，以时分的方式，在多个时刻(multiple time instances)或多个时间单元(multiple time units)多次发送，使得这多个时分波束的主瓣可以覆盖所期望的区域(例如扇区或小区)。
图3是波束赋型系统中发送波束的示意图。如图3所示，发射机通过时分的多个步(step)覆盖旋转角度为θ的扇区；其中，在Sweeping的每个步(step)所对应的时刻或时间单元中发射波束，Step数可以是固定的、也可以是可配置的、或灵活可变的。从发送信号的格式上来看，例如图1中的PSS只占据一个时间单元(例如正交频分复用(OFDM，Orthogonal Frequency Division Multiplexing)符号)，而图3的beam sweeping过程中，PSS就需要占据多个时间单元(符号)，SSS也是一样的。
图4是波束赋型系统中发送PBCH或同步信号的示意图，仅示意性示出了发送多个PBCH或同步信号的情况。如图4所示，在一个时间间隔(例如一个子帧)中，PBCH和/或同步信号需要发送多次。在LTE/LTE-A系统中，通过检测PSS和SSS的位置就 可以推知帧头位置，但是在使用beam sweeping方式时，用户设备无法估计出所捕获的同步信号到底对应哪个波束或者说是多个时间单元中或多个时刻的哪一个，这样也就不能推知时间间隔(例如帧或子帧)的头位置并建立下行同步了。
以下对本发明利用物理广播信道来承载时间间隔的定时信息进行详细说明。
在本实施例中，发送端可以是基站而接收端是用户设备，但本发明不限于此，发送端和/或接收端还可以都是其他网络设备。以下将以基站和用户设备为例，对本发明进行示意性说明。
值得注意的是，本发明关于信号或信道的概念或内容，可以类似于LTE或LTE-A系统中的相关内容。但本发明不限于此，例如也可以是增强后的信号或信道，还可以是新定义的信号或信道。例如本发明的同步信号和物理广播信道，并不能简单地认为等同于LTE或LTE-A系统中的PSS/SSS和PBCH，而应该广义地进行理解。
实施例1
本发明实施例提供一种信息指示方法，应用于发送端(例如基站)。图5是本发明实施例的信息指示方法的示意图，如图5所示，所述信息指示方法包括：
步骤501，发送端在一个时间间隔中的多个时间单元或多个时刻向接收端发送多个物理广播信道和多个同步信号；其中，每一物理广播信道中承载该时间间隔的定时信息。
在本实施例中，物理广播信道和对应的同步信号可以由发送端以成型的波束发出。其中，所述成型的波束以时分的方式在相同或者不同的方向上被发送；例如在所述时间间隔中，所述成型的波束以时分的方式在固定的或可配置的多个时间单元或多个时刻在相同或不同的方向上被发送。但本发明不限于，例如本发明也可以适用于不是波束赋型的场景。
在本实施例中，每一时间间隔可以包括多个时间单元或多个时刻；多个时间单元或多个时刻中的全部或者部分可以发送物理广播信道和/或同步信号，即时间单元或时刻可以是与物理广播信道和/或同步信号一一对应的，也可以不是一一对应的。
例如某个时间间隔可以包括10个时间单元，而其中5个时间单元中分别可以发送物理广播信道和同步信号。
此外，在一个时间单元或时刻中可以发送物理广播信道和同步信号，也可以仅发 送物理广播信道，或者仅发送同步信号；即物理广播信道与同步信号可以是一一对应的，也可以不是一一对应的。
在本实施例中，在一个时间间隔中发送的多个物理广播信道和多个同步信号的个数可以是固定的，例如可以预先设定成一个固定值(即静态地保持不变)。例如在一个时间间隔中，可以发送N个物理广播信道和M个同步信号；N和M可以是相同的数值，也可以是不同的数值。
以beam sweeping过程为例，例如一个TTI中发送的物理广播信道和同步信号的个数固定，这意味着beam sweeping过程的step数目(或者说beam数目)可以是固定的。这样可以带来以下好处：例如，使用户设备在初始小区搜索和邻区小区搜索的时间是可控的，同时可以使小区搜索的实现复杂度是可控的，另外在采用物理广播信道承载时间间隔的定时信息的机制中，这种固定值可以使得信令开销非常少。
此外，在一个时间间隔中发送的多个物理广播信道和多个同步信号的个数也可以是可配置的。例如可以设定为在某一段时间内保持不变的值(即可以半静态地配置)，或者也可以设定为根据指令变化的值(即可以动态地配置)。
在本实施例中，时刻可以是指某个时间点。因为每个信号都有一定的发送时间长度，所以发送时刻可以标志某个信号被传输时对应的传输起始时间点，而传输的持续时间由信号的长度确定。以上仅示意性说明了信号和时刻的关系，但本发明不限于此，具体内容还可以参考现有技术。
在本实施例中，时间间隔或时间单元可以包括如下时间资源单元中的任一种：符号、子帧、帧、传输时间间隔；但本发明不限于此。值得注意的是，本发明实施例中的时间间隔或时间单元可以分别具有层级关系，例如某个时间间隔还可以包括更小粒度的时间间隔或时间单元，某个时间单元也还可以包括更小粒度的时间间隔或时间单元。
图6是本发明实施例的发送物理广播信道和/或同步信号的示意图。如图6所示，该时间间隔可以是一个子帧，而该时间单元可以是子帧内的单个符号或多个符号，换一角度也可以说该信号在某时刻发送；每个子帧可以包括多个时间单元，波束在不同的时间单元之间依次发生变化，或者说该信号利用多个波束在多个时刻(例如如图6所示的时刻a、时刻b、时刻c和时刻d)被发送。
图7是本发明实施例的发送物理广播信道和/或同步信号的另一示意图。如图7 所示，该时间间隔可以是一个帧，而该时间单元可以是帧内的子帧，每个子帧内包含单个物理广播信道和/或同步信号；每个帧可以包括多个子帧，波束在不同的子帧之间依次发生变化。同样，可以概括的说该信号利用多个波束在多个时刻(例如如图7所示的时刻a、时刻b、时刻c和时刻d)被发送。
值得注意的是，图6和图7仅示意性地说明了本发明发送物理广播信道或同步信号的情况，但本发明不限于此。本发明实施例中的时间间隔和时间单元只是表征一种为了方便表述而定义的从属关系，对于时间间隔和时间单元的具体含义，本发明并不进行限制，可以根据实际场景确定。
在本实施例中，对于某一物理广播信道，时间间隔的定时信息可以包括：该物理广播信道所在的时间单元在该时间间隔中的位置信息；或者是该物理广播信道在该时间间隔中的发送时刻信息；或者该物理广播信道所在的时间单元在该时间间隔中的传输顺序信息。
例如，对于图6中时刻c第3个波束上发送的物理广播信道，该广播信道中包括对应“3”的顺序信息。
在本实施例中，每一物理广播信道可以对应于某一同步信号，该物理广播信道和对应的同步信号具有预定的时间关系。即同步信号和物理广播信道之间在时域上的距离是固定的；例如可以与LTE系统类似，二者在时域上是相邻的，但本发明不限于此，也可以是不相邻的。
在这种情况下，对于某一物理广播信道，时间间隔的定时信息还可以包括：该物理广播信道所对应的同步信号所在的时间单元在该时间间隔中的位置信息；该物理广播信道所对应的同步信号在该时间间隔中的发送时刻消息；或者该物理广播信道所对应的同步信号所在的时间单元在该时间间隔中的传输顺序信息。
图8是本发明实施例的信息指示方法的另一示意图，以基站和用户设备为例对整个过程进行说明。如图8所示，所述信息指示方法包括：
步骤801，基站在一个时间间隔的多个时间单元中向用户设备发送多个物理广播信道和多个同步信号；其中，每一物理广播信道中承载该时间间隔的定时信息。
步骤802，用户设备检测基站发送的同步信号；
步骤803，用户设备根据检测到的同步信号接收对应的物理广播信道；以及
步骤804，用户设备获得该物理广播信道中承载的该时间间隔的定时信息。
值得注意的是，附图8仅示意性地对本发明实施例进行了说明，但本发明不限于此。例如可以适当地调整各个步骤之间的执行顺序，此外还可以增加其他的一些步骤或者减少其中的某些步骤。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图的记载。
在一个实施方式中，物理广播信道和同步信号可以具有相同间隔(例如相同的发送时间间隔和/或发送方向)，例如物理广播信道和同步信号可以是一一对应的。
图9是本发明实施例的多个物理广播信道和多个同步信号之间具有相同间隔的示意图。如图9所示，物理广播信道和同步信号可以采用同样的beam sweeping过程，以同样的beam sweeping的时域间隔和空域间隔完成sweeping。可选的，每个波束对应的物理广播信道是可以独立自解码的，但本发明不限于此。
图10是本发明实施例的使用预定的时间关系的示意图，示出了作为接收端的用户设备通过同步检测获得时间间隔的定时信息的情况。如图10所示，经过同步信号的检测运算(例如相干检测运算)，通过最高相关值可以定位到最强同步信号的位置，如图10中①所示。
由于同步信号和物理广播信道之间具有预定的时间关系，由该同步信号位置可以推知相应的物理广播信道的位置，如图10中②所示。从而可以恢复出该物理广播信道所承载的该时间间隔的定时信息；关于承载的方式可以是显式的也可以是隐式的，如后所述。另外，这里beam sweeping对应的方式既可以是图6中的时间间隔(如子帧)内的以物理广播信道和/或同步信号持续时间为单位的多beam连续变化，也可以是图7中的时间间隔内(如帧)的以子帧为单位多beam的变化方式。
在获得该时间间隔的定时信息后，可推知物理广播信道所在时间单元在该时间间隔中的位置信息，或者该物理广播信道所发送的时刻信息，如图10中③所示。然后，可以获得同步信号所在时间单元相对于该时间间隔的起始位置的信息；或者该同步信号所发送的时刻信息，如图10中④所示。由此，可以将该用户设备与该基站进行同步。
在本实施例中，同步信号可以采用LTE系统PSS/SSS这样的二级同步信号结构，也可以采用一级同步信号结构等其他新同步信号结构。同样地，所用的同步序列可以是与LTE系统一致的序列或者新的同步信号序列。
例如，同步信号可以是与LTE系统一样占据载波中心附近的6个资源块(RB， Resource Block)，也可以是在载波的其他位置。但本发明不限于此，可以根据实际情况确定具体的同步信号结构。
类似地，物理广播信道可以沿用LTE系统中PBCH的基本结构，也可以是采用新的结构，包括采用不同的编码调制方式、所占据的符号长度、带宽等。物理广播信道所在的时频位置与同步信号的位置之间的关系可以是预先定义好的。
在另一个实施方式中，多个物理广播信道和多个同步信号之间也可以不具有相同间隔(例如不同的发送时间间隔和/或发送方向)。
图11是本发明实施例的多个物理广播信道和多个同步信号之间具有不同间隔的示意图。如图11所示，同步信号和物理广播信道采用的beam sweeping时间间隔是不同的。但只要相关信息是预先定义的，作为接收端的用户设备可以采用盲检的方式搜索到对应的物理广播信道的位置。
以下对于时间间隔的定时信息如何被物理广播信道所承载进行说明。
在一个实施方式中，时间间隔的定时信息可以通过在物理广播信道中增加的一个或多个比特显式地被指示。例如，可以在MIB消息中增加指示物理广播信道所在时间单元在上一级时间间隔的位置信息。
图12是本发明实施例的时间间隔的定时信息被显式地承载的示意图，如图12所示，可以在MIB信息中引入表示该物理广播信道所占的起始符号(时间单元)相对于上一级时间间隔(例如子帧)头的位置信息。
例如，针对图10中的示意图，一个时间间隔(比如子帧)中有4个物理广播信道和同步信号，假定一个子帧有24个符号，每个物理广播信道有4个符号，每隔6个符号有一个物理广播信道，每个物理广播信道在6个符号中的第3个符号开始发送，前2个符号为同步信号，则在MIB信息中可附加5比特(bit)来表示该位置信息。
如10图示的例子，对于第2个物理广播信道，对应的MIB信息为‘01000’，表示与该时间间隔的起始位置距离8个符号。上述实例的这种方法可以用于beam sweeping中的波束个数不固定时。当符号长度一定，这种方法也可以表示出该符号对应波束的起始时刻。同理，也可利用该方法来指示同步信号的位置。
而如果beam sweeping中的波束个数固定，也即等效地在一个时间间隔中发送的物理广播信道和同步信号的个数是固定的，这样可以在MIB信息中附加表示物理广播信道和/或同步信号在某个时间间隔内的第几次发送的信息。
图13是本发明实施例的时间间隔的定时信息被显式地承载的另一示意图，如图13所示，针对图10中的示意图，一个时间间隔(比如子帧)中有4个物理广播信道和同步信号，则引入2比特(bit)就可以表示物理广播信道和/或同步信号的位置，即传输顺序信息。如图10所示的例子，对于第2个物理广播信道和/或同步信号，对应的MIB信息为‘01’。这样附加信令的开销很小。用户设备侧在小区搜索所需时间和复杂度也相对可控。
图12和图13也可以对应着图6或图7的实施例。对于图6，在某一时间间隔(例如子帧)内，多个beam在多个时间单元连续变化，这里beam变化的间隔为物理广播信道和/或同步信号的持续时间。对于图7，在某一时间间隔(例如帧)内，多个beam在多个时间单元(例如子帧)连续变化，这里beam变化的间隔为子帧，子帧内beam方向是固定的。
例如，对于图7所示的实例也可采用MIB信息指示。这时在子帧内，只含单个物理广播信道和/或同步信号，其与子帧头的距离关系是预先设定好的。这样，如果beam sweeping中的波束个数不固定时，假定一个帧内有10个子帧，MIB中可以采用4个bit来表示各beam所对应的子帧位置。如果beam sweeping中的波束个数固定时，可以仍然采用上述传输顺序的表示方式。比如对应4个beam，引入2bit就可以物理广播信道和/或同步信号的传输顺序信息。对应第2个beam(或其对应的物理广播信道和/或同步信号)，对应的MIB信息为‘01’。
在另一个实施方式中，时间间隔的定时信息可以通过所述物理广播信道的编码或调制信息隐式地被指示。该编码或调制信息例如可以为调制该物理广播信道的加扰序列，也可以为循环冗余校验(CRC，Cyclic Redundancy Check)码等；但本发明不限于此。
例如，可以通过编码或调制过程中使用不同的加扰序列，采用不同的CRC Mask等方式承载在物理广播信道上。这种携带信息的方式与LTE系统里PBCH携带SFN最低位的两比特信息以及携带天线端口信息的方式类似，接收机需要采用盲检的方式进行检测，具体内容在此不再详细说明。
在上述的实施例中，每个beam sweeping step中的物理广播信道是可以独立解码的，其中承载与时间间隔的定时相关的信息。例如，可以指示所在的时间单元在其上一级时间间隔中的位置。
这里物理广播信道所在的时间单元可对应该物理广播信道的起始符号位置，其上一级时间间隔可以是子帧或者TTI等比符号高一级的时域资源单位。或者，这里物理广播信道所在的时间单元也可以是该物理广播信道所在的子帧或者TTI的位置。其上一级时间间隔可以是帧等比子帧或者TTI高一级的时域资源单位。当符号长度一定，这种方法也可以表示出该符号对应beam的起始时刻。
在本实施例中，所述的位置可以对应于该物理广播信道的起始符号在上一级时间间隔(例如子帧或TTI)中的绝对时间位置，或者对应于该物理广播信道的起始符号与上一级时间间隔起始位置的相对时间距离；或者该物理广播信道在该时间间隔中的发送时刻消息。
此外，这里的位置还可以对应于该物理广播信道所在子帧或TTI在上一级时间间隔(例如帧)中的绝对时间位置；或者是该物理广播信道所在的子帧或TTI相对于上一级时间间隔(例如帧)的起始位置(例如帧头)的相对时间距离。
此外，物理广播信道所承载的定时信息可以指示该物理广播信道对应于某个时间间隔内的第几次发送。例如，可以指示该物理广播信道在一个子帧或TTI等时间间隔内的第几次发送，也可以指示物理广播信道所在的子帧或TTI等时间间隔在其上一级时间间隔(例如帧)的第几次发送。
由上述实施例可知，在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中，每一物理广播信道中承载所述时间间隔的定时信息。由此，即使在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，也能以简单的结构和操作获得所述时间间隔的定时信息。
实施例2
本发明实施例在实施例1的基础上，对时间间隔的定时信息进行进一步说明。本实施例2与实施例1相同的内容不再赘述。
在本实施例中，时间间隔的定时信息可以包括：物理广播信道在该时间间隔中的定时信息，和/或，同步信号在该时间间隔中的定时信息。但本发明不限于此，例如还可以在物理广播信道中直接包含该时间间隔的起始位置的时间信息。
以下对于时间间隔的定时信息进行具体说明。
在一个实施方式中，时间间隔的定时信息可以为物理广播信道的相关信息。
例如，在实施例1中，对于某一物理广播信道，时间间隔的定时信息可以包括：该物理广播信道所在的时间单元在该时间间隔中的位置信息；或者是该物理广播信道在该时间间隔中的发送时刻信息；或者该物理广播信道所在的时间单元在该时间间隔中的传输顺序信息。
在本实施例中，对于某一物理广播信道，时间间隔的定时信息还可以是：物理广播信道所在的时间单元或该物理广播信道的发送时刻相对于该时间间隔的起始位置的相对时间信息。
在另一个实施方式中，时间间隔的定时信息可以为同步信号的相关信息。即，由于同步信号与物理广播信道存在固定的时序关系，该物理广播信道可直接承载同步信号的定时消息。
例如，对于某一物理广播信道，时间间隔的定时信息指示的可以是：该物理广播信道所对应的同步信号所在的时间单元在该时间间隔中的位置信息；该物理广播信道所对应的同步信号在该时间间隔中的发送时刻消息；或者该物理广播信道所对应的同步信号所在的时间单元在该时间间隔中的传输顺序信息；
或者，时间间隔的定时信息还可以是：该物理广播信道所对应的同步信号所在的时间单元或该同步信号的发送时刻相对于该时间间隔的起始位置的相对时间信息。
在本实施方式中，该同步信号的定时信息可以显式地或隐式地承载在物理广播信道上。时间间隔的定时信息可以通过在物理广播信道中增加的一个或多个比特显式地被指示。例如，可以在MIB消息中增加比特来指示：同步信号所在时间单元在上一级时间间隔的位置信息；或者增加比特来指示：同步信号的发送时刻在上一级时间间隔的位置信息。
或者，时间间隔的定时信息通过物理广播信道的编码或调制信息隐式地被指示。例如，通过物理广播信道的CRC隐式地指示：同步信号所在时间单元在上一级时间间隔的位置信息；或者增加比特来指示：同步信号的发送时刻在上一级时间间隔的位置信息。
实施例3
本发明实施例提供一种信息指示方法，从接收端(例如用户设备)一侧进行说明。本发明实施例与实施例1和2相同的内容不再赘述。
图14是本发明实施例的信息指示方法的示意图，如图14所示，所述信息指示方法包括：
步骤1401，接收端检测发送端发送的同步信号；其中所述发送端在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，并且每一物理广播信道中承载所述时间间隔的定时信息；
步骤1402，接收端根据检测到的同步信号接收对应的物理广播信道；以及
步骤1403，接收端获得所述物理广播信道中承载的所述时间间隔的定时信息。
在本实施例中，在一个时间间隔中发送的多个物理广播信道和多个同步信号的个数可以是固定的，或者也可以是可配置的。
在本实施例中，时间间隔的定时信息可以包括：物理广播信道在该时间间隔中的定时信息，和/或，同步信号在该时间间隔中的定时信息。但本发明不限于此，还可以是指示该时间间隔定时的其他信息。
在本实施例中，对于某一物理广播信道，所述时间间隔的定时信息可以包括：所述物理广播信道所在的时间单元在所述时间间隔中的位置信息；或者所述物理广播信道所在的时间单元在所述时间间隔中的传输顺序信息；所述物理广播信道在所述时间间隔中的发送时刻信息；或者所述物理广播信道所在的时间单元或所述物理广播信道的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
在本实施例中，每一物理广播信道可以对应于某一同步信号，物理广播信道和对应的同步信号具有预定的时间关系。物理广播信道和同步信号可以具有相同的发送间隔，也可以具有不同的发送间隔，但本发明不限于此。
在本实施例中，对于某一物理广播信道，所述时间间隔的定时信息还可以包括：所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的位置信息；或者所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的传输顺序信息；或者该物理广播信道所对应的同步信号在该时间间隔中的发送时刻信息；或者所述物理广播信道所对应的同步信号所在的时间单元或所述同步信号的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
在本实施例中，每一时间间隔可以包括多个时间单元或多个时刻；所述时间间隔或所述时间单元可以为如下时间资源单元中的任一种：符号、子帧、帧、传输时间间隔，但本发明不限于此。
在一个实施方式中，所述时间间隔的定时信息可以通过在所述物理广播信道中增加的一个或多个比特显式地被指示。
在另一个实施方式中，所述时间间隔的定时信息可以通过所述物理广播信道的编码或调制信息隐式地被指示。
在本实施例中，所述物理广播信道和所述对应的同步信号可以由所述发送端以成型的波束发出。其中，所述成型的波束可以以时分的方式在相同或者不同的方向上被发送。例如在所述时间间隔中，所述成型的波束以时分的方式在固定的或可配置的多个时间单元或多个时刻在相同或不同的方向上被发送。
由上述实施例可知，在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中，每一物理广播信道中承载所述时间间隔的定时信息。由此，即使在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，也能以简单的结构和操作获得所述时间间隔的定时信息。
实施例4
本发明实施例提供一种信息指示装置，配置于发送端(例如基站)。本发明实施例对应于实施例1中的信息指示方法，相同的内容不再赘述。
图15是本发明实施例的信息指示装置的示意图，如图15所示，信息指示装置1500包括：
信息发送部1501，其在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中，每一所述物理广播信道中承载所述时间间隔的定时信息。
在本实施例中，在一个时间间隔中发送的多个物理广播信道和多个同步信号的个数可以是固定的，或者也可以是可配置的。
在本实施例中，时间间隔的定时信息可以包括：物理广播信道在该时间间隔中的定时信息，和/或，同步信号在该时间间隔中的定时信息。但本发明不限于此，还可以是指示该时间间隔定时的其他信息。
在本实施例中，对于某一物理广播信道，所述时间间隔的定时信息可以包括：所述物理广播信道所在的时间单元在所述时间间隔中的位置信息；或者所述物理广播信道所在的时间单元在所述时间间隔中的传输顺序信息；所述物理广播信道在所述时间 间隔中的发送时刻信息；或者所述物理广播信道所在的时间单元或所述物理广播信道的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
在本实施例中，每一物理广播信道可以对应于某一同步信号，物理广播信道和对应的同步信号具有预定的时间关系。物理广播信道和同步信号可以具有相同的发送间隔，也可以具有不同的发送间隔，但本发明不限于此。
在本实施例中，对于某一物理广播信道，所述时间间隔的定时信息还可以包括：所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的位置信息；或者所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的传输顺序信息；或者该物理广播信道所对应的同步信号在该时间间隔中的发送时刻信息；或者所述物理广播信道所对应的同步信号所在的时间单元或所述同步信号的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
在本实施例中，每一时间间隔可以包括多个时间单元或多个时刻；所述时间间隔或所述时间单元可以为如下时间资源单元中的任一种：符号、子帧、帧、传输时间间隔，但本发明不限于此。
在一个实施方式中，所述时间间隔的定时信息可以通过在所述物理广播信道中增加的一个或多个比特显式地被指示。
在另一个实施方式中，所述时间间隔的定时信息可以通过所述物理广播信道的编码或调制信息隐式地被指示。
在本实施例中，所述物理广播信道和所述对应的同步信号可以由所述发送端以成型的波束发出。其中，所述成型的波束可以以时分的方式在相同或者不同的方向上被发送。例如在所述时间间隔中，所述成型的波束以时分的方式在固定的或可配置的多个时间单元或多个时刻在相同或不同的方向上被发送。
由上述实施例可知，在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中，每一物理广播信道中承载所述时间间隔的定时信息。由此，即使在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，也能以简单的结构和操作获得所述时间间隔的定时信息。
实施例4
本发明实施例提供一种信息指示装置，配置于接收端(例如用户设备)。本发明 实施例对应于实施例2中的信息指示方法，相同的内容不再赘述。
图16是本发明实施例的信息指示装置的示意图，如图16所示，信息指示装置1600包括：
同步信号检测部1601，其检测发送端发送的同步信号；其中所述发送端在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，并且每一物理广播信道中承载所述时间间隔的定时信息；
信息接收部1602，其根据检测到的同步信号接收对应的物理广播信道；以及
定时获得部1603，其获得所述物理广播信道中承载的所述时间间隔的定时信息。
在本实施例中，在一个时间间隔中发送的多个物理广播信道和多个同步信号的个数可以是固定的，或者也可以是可配置的。
在本实施例中，时间间隔的定时信息可以包括：物理广播信道在该时间间隔中的定时信息，和/或，同步信号在该时间间隔中的定时信息。但本发明不限于此，还可以是指示该时间间隔定时的其他信息。
在本实施例中，对于某一物理广播信道，所述时间间隔的定时信息可以包括：所述物理广播信道所在的时间单元在所述时间间隔中的位置信息；或者所述物理广播信道所在的时间单元在所述时间间隔中的传输顺序信息；所述物理广播信道在所述时间间隔中的发送时刻信息；或者所述物理广播信道所在的时间单元或所述物理广播信道的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
在本实施例中，每一物理广播信道可以对应于某一同步信号，物理广播信道和对应的同步信号具有预定的时间关系。物理广播信道和同步信号可以具有相同的发送间隔，也可以具有不同的发送间隔，但本发明不限于此。
在本实施例中，对于某一物理广播信道，所述时间间隔的定时信息还可以包括：所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的位置信息；或者所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的传输顺序信息；或者该物理广播信道所对应的同步信号在该时间间隔中的发送时刻信息；或者所述物理广播信道所对应的同步信号所在的时间单元或所述同步信号的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
在本实施例中，每一时间间隔可以包括多个时间单元或多个时刻；所述时间间隔或所述时间单元可以为如下时间资源单元中的任一种：符号、子帧、帧、传输时间间 隔，但本发明不限于此。
在一个实施方式中，所述时间间隔的定时信息可以通过在所述物理广播信道中增加的一个或多个比特显式地被指示。
在另一个实施方式中，所述时间间隔的定时信息可以通过所述物理广播信道的编码或调制信息隐式地被指示。
在本实施例中，所述物理广播信道和所述对应的同步信号可以由所述发送端以成型的波束发出。其中，所述成型的波束可以以时分的方式在相同或者不同的方向上被发送。例如在所述时间间隔中，所述成型的波束以时分的方式在固定的或可配置的多个时间单元或多个时刻在相同或不同的方向上被发送。
由上述实施例可知，在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中，每一物理广播信道中承载所述时间间隔的定时信息。由此，即使在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，也能以简单的结构和操作获得所述时间间隔的定时信息。
实施例6
本发明实施例还提供一种通信系统，与实施例1至5相同的内容不再赘述。该通可以包括：
发送端，在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中每一物理广播信道中承载所述时间间隔的定时信息；
接收端，其检测所述发送端发送的同步信号，根据检测到的同步信号接收对应的物理广播信道；以及获得所述物理广播信道中承载的所述时间间隔的定时信息。
在本实施例中，发送端可以为基站，接收端可以为用户设备；但本发明不限于此。
图17是本发明实施例的通信系统的示意图，示意性说明了发送端为基站以及接收端为用户设备的情况，如图17所示，通信系统1700可以包括基站1701和用户设备1702。其中，基站1701可以配置有如实施例3所述的信息指示装置1500；用户设备1702可以配置有如实施例4所述的信息指示装置1600。
本发明实施例还提供一种发送端，例如可以是基站，但本发明不限于此，还可以是其他的网络设备。以下以基站为例进行说明。
图18是本发明实施例的基站的构成示意图。如图18所示，基站1800可以包括： 中央处理器(CPU)200和存储器210；存储器210耦合到中央处理器200。其中该存储器210可存储各种数据；此外还存储信息处理的程序，并且在中央处理器200的控制下执行该程序。其中，中央处理器200可以被配置为实现实施例1所述的信息指示方法。
例如，中央处理器200可以被配置为进行如下的控制：在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中每一物理广播信道中承载所述时间间隔的定时信息。
此外，如图18所示，基站1800还可以包括：收发机220和天线230等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，基站1800也并不是必须要包括图18中所示的所有部件；此外，基站1800还可以包括图18中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种接收端，例如可以是用户设备，但本发明不限于此，还可以是其他的网络设备。以下以用户设备为例进行说明。
图19是本发明实施例的用户设备的示意图。如图19所示，该用户设备1900可以包括中央处理器100和存储器140；存储器140耦合到中央处理器100。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。其中，中央处理器100可以被配置为实现实施例2所述的信息指示方法。
例如，中央处理器100可以被配置为进行如下的控制：检测发送端发送的同步信号，根据检测到的同步信号接收对应的物理广播信道；以及获得所述物理广播信道中承载的时间间隔的定时信息。
如图19所示，该用户设备1900还可以包括：通信模块110、输入单元120、显示器160、电源170。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备1900也并不是必须要包括图19中所示的所有部件，上述部件并不是必需的；此外，用户设备1900还可以包括图19中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种计算机可读程序，其中当在信息指示装置或者发送端中执行所述程序时，所述程序使得所述信息指示装置或者发送端执行实施例1所述的信息指示方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得信息指示装置或者发送端执行实施例1所述的信息指示方法。
本发明实施例还提供一种计算机可读程序，其中当在信息指示装置或者接收端中执行所述程序时，所述程序使得所述信息指示装置或者接收端执行实施例2所述的信息指示方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得信息指示装置或者接收端执行实施例2所述的信息指示方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的信息传输方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图15中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合(例如，信息发送部等)，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图5所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方 框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。

Claims (20)

  1. 一种信息指示装置，配置于发送端，所述信息指示装置包括：
    信息发送部，其在一个时间间隔中的多个时间单元或者多个时刻发送多个物理广播信道和多个同步信号；其中，每一所述物理广播信道中承载所述时间间隔的定时信息。
  2. 根据权利要求1所述的信息指示装置，其中，在一个时间间隔中发送的多个物理广播信道和多个同步信号的个数是固定的，或者是可配置的。
  3. 根据权利要求1所述的信息指示装置，其中，所述时间间隔的定时信息包括：所述物理广播信道在所述时间间隔中的定时信息，和/或，所述同步信号在所述时间间隔中的定时信息。
  4. 根据权利要求1所述的信息指示装置，其中，对于某一所述物理广播信道，所述时间间隔的定时信息包括：
    所述物理广播信道所在的时间单元在所述时间间隔中的位置信息；或者
    所述物理广播信道所在的时间单元在所述时间间隔中的传输顺序信息；或者
    所述物理广播信道在所述时间间隔中的发送时刻信息；或者
    所述物理广播信道所在的时间单元或所述物理广播信道的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
  5. 根据权利要求1所述的信息指示装置，其中，每一所述物理广播信道对应于某一所述同步信号，所述物理广播信道和对应的同步信号具有预定的时间关系。
  6. 根据权利要求1所述的信息指示装置，其中，对于某一所述物理广播信道，所述时间间隔的定时信息包括：
    所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的位置信息；或者
    所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的传输顺序信息；或者
    所述物理广播信道所对应的同步信号在所述时间间隔中的发送时刻信息；或者
    所述物理广播信道所对应的同步信号所在的时间单元或所述同步信号的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
  7. 根据权利要求1所述的信息指示装置，其中，每一所述时间间隔包括多个所 述时间单元或时刻；
    所述时间间隔或所述时间单元包括如下时间资源单元中的任一种：符号、子帧、帧、传输时间间隔。
  8. 根据权利要求1所述的信息指示装置，其中，所述时间间隔的定时信息通过在所述物理广播信道中增加的一个或多个比特显式地被指示；
    或者，所述时间间隔的定时信息通过所述物理广播信道的编码或调制信息隐式地被指示。
  9. 根据权利要求1所述的信息指示装置，其中，所述物理广播信道和对应的同步信号由所述发送端以成型的波束发出；
    在所述时间间隔中所述成型的波束以时分的方式在固定的或可配置的多个时间单元或多个时刻在相同或不同的方向上被发送。
  10. 一种信息指示装置，配置于接收端，所述信息指示装置包括：
    同步信号检测部，其检测发送端发送的同步信号；其中所述发送端在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号，并且每一所述物理广播信道中承载所述时间间隔的定时信息；
    信息接收部，其根据检测到的同步信号接收对应的物理广播信道；以及
    定时获得部，其获得所述物理广播信道中承载的所述时间间隔的定时信息。
  11. 根据权利要求10所述的信息指示装置，其中，在一个时间间隔中发送的多个物理广播信道和多个同步信号的个数是固定的，或者是可配置的。
  12. 根据权利要求10所述的信息指示装置，其中，所述时间间隔的定时信息包括：所述物理广播信道在所述时间间隔中的定时信息，和/或，所述同步信号在所述时间间隔中的定时信息。
  13. 根据权利要求10所述的信息指示装置，其中，对于某一所述物理广播信道，所述时间间隔的定时信息包括：
    所述物理广播信道所在的时间单元在所述时间间隔中的位置信息；或者
    所述物理广播信道所在的时间单元在所述时间间隔中的传输顺序信息；或者
    所述物理广播信道在所述时间间隔中的发送时刻信息；或者
    所述物理广播信道所在的时间单元或所述物理广播信道的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
  14. 根据权利要求10所述的信息指示装置，其中，每一所述物理广播信道对应 于某一所述同步信号，所述物理广播信道和对应的同步信号具有预定的时间关系。
  15. 根据权利要求10所述的信息指示装置，其中，对于某一所述物理广播信道，所述时间间隔的定时信息包括：
    所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的位置信息；或者
    所述物理广播信道所对应的同步信号所在的时间单元在所述时间间隔中的传输顺序信息；或者
    所述物理广播信道所对应的同步信号在所述时间间隔中的发送时刻信息；或者
    所述物理广播信道所对应的同步信号所在的时间单元或所述同步信号的发送时刻相对于所述时间间隔的起始位置的相对时间信息。
  16. 根据权利要求10所述的信息指示装置，其中，每一所述时间间隔包括多个所述时间单元或时刻；
    所述时间间隔或所述时间单元为如下时间资源单元中的任一种：符号、子帧、帧、传输时间间隔。
  17. 根据权利要求10所述的信息指示装置，其中，所述时间间隔的定时信息通过在所述物理广播信道中增加的一个或多个比特显式地被指示；
    或者，所述时间间隔的定时信息通过所述物理广播信道的编码或调制信息隐式地被指示。
  18. 根据权利要求10所述的信息指示装置，其中，所述物理广播信道和所述对应的同步信号由所述发送端以成型的波束发出；
    在所述时间间隔中所述成型的波束以时分的方式在固定的或可配置的多个时间单元或多个时刻在相同或不同的方向上被发送。
  19. 一种通信系统，其中，所述通信系统包括：
    发送端，在一个时间间隔中的多个时间单元或多个时刻发送多个物理广播信道和多个同步信号；其中每一所述物理广播信道中承载所述时间间隔的定时信息；
    接收端，其检测所述发送端发送的同步信号，根据检测到的同步信号接收对应的物理广播信道；以及获得所述物理广播信道中承载的所述时间间隔的定时信息。
  20. 根据权利要求19所述的通信系统，其中，所述发送端为基站，所述接收端为用户设备。
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US11653320B2 (en) 2023-05-16
US20190182782A1 (en) 2019-06-13
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