CN113329487B - Method and device for sending and receiving scanned beams and computer readable storage medium - Google Patents

Method and device for sending and receiving scanned beams and computer readable storage medium Download PDF

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Publication number
CN113329487B
CN113329487B CN202110605390.5A CN202110605390A CN113329487B CN 113329487 B CN113329487 B CN 113329487B CN 202110605390 A CN202110605390 A CN 202110605390A CN 113329487 B CN113329487 B CN 113329487B
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synchronization signal
symbols
broadcast channel
physical broadcast
domain resource
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CN113329487A (en
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周化雨
贾亚男
赵东鹤
田文强
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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    • 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
    • H04W56/007—Open loop measurement
    • H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H04J3/0623—Synchronous multiplexing systems, e.g. synchronous digital hierarchy/synchronous optical network (SDH/SONET), synchronisation with a pointer process

Abstract

A method, a device and a computer readable storage medium for sending and receiving scanning beams are provided, wherein the sending method comprises the following steps: configuring a set of synchronization signal bursts, the set of synchronization signal bursts comprising a plurality of synchronization signal bursts, the synchronization signal bursts comprising a plurality of synchronization signal blocks; and transmitting the synchronization signal burst set at a preset period, wherein a physical broadcast channel and a third synchronization signal multiplex the same group of symbols in the synchronization signal block. The technical scheme provided by the invention can reduce the number of symbols in the synchronous signal block and optimize the time domain positions of a physical broadcast channel and a third synchronous signal in the scanning beam.

Description

Method and device for sending and receiving scanned beams and computer readable storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for sending and receiving a swept beam, and a computer-readable storage medium.
Background
In a fifth Generation mobile communication technology (5 th-Generation, abbreviated as 5G) system, a Synchronization Signal block (SS-block) will include a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSs). In general, in a synchronization signal block, the primary synchronization signal and the secondary synchronization signal each occupy one symbol
On the other hand, a Physical Broadcast Channel (PBCH) is also included in the synchronization signal block; the Third Synchronization Signal (TSS) may also be included in a Synchronization Signal block (SS-block) and sent to a User Equipment (UE) in a broadcast manner.
In order to adapt to narrow-band access, a physical broadcast channel and a third synchronization signal are subjected to time division multiplexing with a main synchronization signal and an auxiliary synchronization signal, so that more symbols are occupied in a synchronization signal block, the total number of occupied symbols in a beam scanning process is also more, the cell searching and measuring processes are prolonged, time delay is increased, and the beam training performance is influenced. In addition, the configuration of more consecutive downlink symbols in the frame structure may also lengthen the time delay of Hybrid Automatic Repeat reQuest (HARQ) feedback, which affects the information transmission efficiency from the network side to the user equipment side.
Disclosure of Invention
The technical problem to be solved by the invention is how to design the time domain positions of the physical broadcast channel and the third synchronous signal more reasonably so as to reduce the number of symbols in the synchronous signal block.
To solve the foregoing technical problem, an embodiment of the present invention provides a method for sending a swept beam, including: configuring a set of synchronization signal bursts, the set of synchronization signal bursts comprising a plurality of synchronization signal bursts, the synchronization signal bursts comprising a plurality of synchronization signal blocks; and transmitting the synchronization signal burst set at a preset period, wherein a physical broadcast channel and a third synchronization signal multiplex the same group of symbols in the synchronization signal block.
Optionally, the physical broadcast channel and the third synchronization signal time-division multiplex the same set of symbols.
Optionally, the time division multiplexing the same group of symbols by the physical broadcast channel and the third synchronization signal refers to: and in two continuous preset periods, the same group of symbols are respectively used for transmitting the physical broadcast channel and the third synchronization signal.
Optionally, when the same group of symbols is used to transmit the third synchronization signal, the third synchronization signal and the secondary synchronization signal carried by a symbol before the same group of symbols use the same antenna port.
Optionally, the physical broadcast channel and the third synchronization signal frequency-division multiplex the same group of symbols.
Optionally, the frequency domain resources of the same group of symbols include multiple frequency domain resource units, and the frequency division multiplexing the same group of symbols by using the physical broadcast channel and the third synchronization signal refers to: mapping the physical broadcast channel and the third synchronization signal into different frequency domain resource units of the plurality of frequency domain resource units, respectively.
Optionally, the synchronization signal block index information of the third synchronization signal occupies at least one frequency-domain resource unit of the plurality of frequency-domain resource units in a sequence form, and the physical broadcast channel occupies the remaining frequency-domain resource units of the plurality of frequency-domain resource units; or after the synchronization signal block index information of the third synchronization signal is coded and modulated, the synchronization signal block index information is mapped to other frequency domain resource units different from the frequency domain resource units occupied by the physical broadcast channel.
Optionally, the frequency domain resources of the same group of symbols include multiple frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal on the same group of symbols refers to: the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, and a system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated and mapped to any one of the plurality of frequency domain resource units.
Optionally, the synchronization signal block occupies three symbols in a time slot, where the time slot includes seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control.
Optionally, the synchronization signal blocks occupy nine symbols in a time slot, each synchronization signal block occupies three symbols, the time slot includes fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control.
An embodiment of the present invention further provides a device for sending a scanning beam, including: a configuration module configured to configure a set of synchronization signal bursts, the set of synchronization signal bursts comprising a plurality of synchronization signal bursts, the synchronization signal bursts comprising a plurality of synchronization signal blocks; and a sending module, configured to send the synchronization signal burst set at a preset period, where a physical broadcast channel and a third synchronization signal multiplex a same group of symbols in the synchronization signal block.
The embodiment of the invention also provides a method for receiving the swept beam, which comprises the following steps: receiving a synchronization signal burst set, wherein the synchronization signal burst set is sent out according to a preset period, the synchronization signal burst set comprises a plurality of synchronization signal bursts, and the synchronization signal bursts comprise a plurality of synchronization signal blocks; and acquiring a physical broadcast channel and a third synchronous signal which are included in the synchronous signal burst set, wherein the physical broadcast channel and the third synchronous signal multiplex the same group of symbols in the synchronous signal block.
Optionally, the acquiring the physical broadcast channel and the third synchronization signal included in the synchronization signal burst set includes: and acquiring the physical broadcast channel and a third synchronization signal from the same group of symbols in the two continuous preset periods respectively.
Optionally, when the same group of symbols is used for transmitting the third synchronization signal, frequency synchronization is performed based on the third synchronization signal and a secondary synchronization signal carried by a symbol before the same group of symbols, where the third synchronization signal and the secondary synchronization signal use the same antenna port.
An embodiment of the present invention further provides a beam scanning receiving apparatus, including: a receiving module, configured to receive a synchronization signal burst set, where the synchronization signal burst set is sent according to a preset period, the synchronization signal burst set includes a plurality of synchronization signal bursts, and each synchronization signal burst includes a plurality of synchronization signal blocks; an obtaining module, configured to obtain a physical broadcast channel and a third synchronization signal that are included in the synchronization signal burst set, where the physical broadcast channel and the third synchronization signal multiplex a same group of symbols in the synchronization signal block.
Optionally, the obtaining module includes: and the first obtaining submodule is used for obtaining the physical broadcast channel and the third synchronous signal from the same group of symbols in the two continuous preset periods respectively.
Optionally, the obtaining module further includes: and a synchronization sub-module, configured to perform frequency synchronization based on the third synchronization signal and an auxiliary synchronization signal carried by a symbol before the same group of symbols when the same group of symbols is used for transmitting the third synchronization signal, where the third synchronization signal and the auxiliary synchronization signal use the same antenna port.
Optionally, the obtaining module includes: a second obtaining sub-module, configured to obtain the physical broadcast channel and the third synchronization signal from different frequency resource units in the multiple frequency resource units, respectively.
An embodiment of the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and on which a computer program is stored, where the computer program, when executed by a processor, performs the steps of the above method
The embodiment of the present invention further provides a beam scanning transmitting apparatus, which includes a memory and a processor, where the memory stores a computer program that can be executed on the processor, and the processor executes the steps of the method when executing the computer program.
The embodiment of the present invention further provides a beam scanning receiving apparatus, which includes a memory and a processor, where the memory stores a computer program that can be executed on the processor, and the processor executes the steps of the above method when executing the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
configuring a set of synchronization signal bursts, the set of synchronization signal bursts comprising a plurality of synchronization signal bursts, the synchronization signal bursts comprising a plurality of synchronization signal blocks; and transmitting the synchronization signal burst set at a preset period, wherein a physical broadcast channel and a third synchronization signal multiplex the same group of symbols in the synchronization signal block. Compared with the prior art scheme of time division multiplexing of the physical broadcast channel and the third synchronous signal with the main synchronous signal and the auxiliary synchronous signal, the technical scheme of the embodiment of the invention can effectively reduce the number of symbols in the synchronous signal block and more reasonably optimize the time domain positions of the physical broadcast channel and the third synchronous signal in the scanning beam.
Further, the physical broadcast channel and a third synchronization signal time division multiplex the same set of symbols. For example, in two consecutive preset periods, the same group of symbols are respectively used for transmitting the physical broadcast channel and the third synchronization signal, thereby achieving the technical effect of time domain resource multiplexing and saving the overhead of time domain resources.
Further, the physical broadcast channel and a third synchronization signal frequency division multiplex the same set of symbols. For example, the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, and the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal may be coded and modulated and mapped to any one of the frequency domain resource units, thereby achieving better time domain diversity gain.
Drawings
Fig. 1 is a flowchart of a method for transmitting a swept beam according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a first embodiment of the present invention, which employs a manner of time-division multiplexing the same group of symbols to perform beam sweeping;
FIG. 3 is another schematic diagram of the first embodiment of the present invention for sweeping a beam by time-division multiplexing the same set of symbols;
fig. 4 is a schematic diagram of a configuration of a synchronization signal block in a time slot according to a first embodiment of the present invention;
fig. 5 is a schematic diagram of another arrangement of synchronization signal blocks in time slots according to the first embodiment of the present invention;
fig. 6 is a schematic diagram showing the arrangement of another synchronization signal block in a time slot according to the first embodiment of the present invention;
fig. 7 is a schematic diagram of another arrangement of synchronization signal blocks in time slots according to the first embodiment of the present invention;
fig. 8 is a schematic diagram showing the arrangement of another synchronization signal block in a time slot according to the first embodiment of the present invention;
fig. 9 is a schematic structural diagram of a beam scanning transmission apparatus according to a second embodiment of the present invention;
fig. 10 is a flowchart of a beam sweeping receiving method according to a third embodiment of the present invention;
fig. 11 is a schematic structural diagram of a beam scanning receiving apparatus according to a fourth embodiment of the present invention.
Detailed Description
As a background art, it is understood by those skilled in the art that, in a Synchronization Signal block (SS-block) of a fifth Generation mobile communication technology (5 th-Generation, abbreviated as 5G) system, a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSs) are time-division multiplexed. Further, in order to support narrowband access of the ue, a Physical Broadcast Channel (PBCH) is also transmitted in the synchronization signal block, and may be time division multiplexed with the primary synchronization signal and the secondary synchronization signal. Likewise, to support narrowband access by user devices, a Third Synchronization Signal (TSS) is also in the Synchronization Signal block and may be time division multiplexed with the primary and secondary Synchronization signals. The third synchronization signal mainly includes synchronization signal block index information, where the synchronization signal block index information may also be regarded as a beam identification code corresponding to the synchronization signal block.
In practical applications, each synchronization signal block can be regarded as a resource of one beam in a beam scanning (also called beam scanning) process, and a plurality of synchronization signal blocks form one synchronization signal burst (SS-burst), and the synchronization signal burst can be regarded as a resource of a relative set including a plurality of beams. Further, a plurality of synchronization signal bursts form a set of synchronization signal bursts (SS-burst-set). The synchronous signal blocks are transmitted on different beams in turn, and the beam scanning process is performed. Through training of scanning beams, the user equipment can perceive the strongest signal on which beam.
When the physical broadcast channel and the third synchronization signal are time division multiplexed with the primary synchronization signal and the secondary synchronization signal, the physical broadcast channel and the third synchronization signal respectively occupy one symbol in the synchronization signal block, which results in more occupation of symbols in the synchronization signal block. When the number of symbols in one synchronization signal block is large, the total number of symbols occupied by the beam sweeping process is large, which lengthens the time spent by the user equipment in cell searching and measuring processes, thereby increasing the time delay and affecting the performance of beam training. On the other hand, the existing beam scanning scheme also needs to configure more continuous downlink symbols in a frame structure, thereby lengthening the feedback time delay of Hybrid Automatic Repeat reQuest (HARQ), and affecting the information transmission efficiency of the network side to the user equipment side.
When the user equipment performs initial cell selection, a complete cell search needs to be completed within a default time period (e.g., 10 milliseconds or 20 milliseconds), where the complete cell search includes primary synchronization signal and secondary synchronization signal detection, 10 millisecond timing, physical broadcast channel decoding, and acquisition of information carried by a physical broadcast channel; after the ue completes the initial cell selection, it may complete a measurement within a preset period (e.g. 5 ms), and for the network side, the network may send a complete synchronization signal block required for ue measurement within 5 ms, so that the ue completes the measurement process.
In practical applications, the network does not know when the ue connects to it, so that it needs to periodically send information (including a physical broadcast channel, a third synchronization signal, a primary synchronization signal, a secondary synchronization signal, etc.) in a broadcast manner for the ue to receive and complete initial cell selection (or cell search), and in combination with the foregoing analysis, these broadcasted information needs to occupy symbol resources in a synchronization signal block, respectively, resulting in a longer broadcast period (e.g. 10 ms or more). However, for the user equipment that has already completed initial cell selection, it only needs to detect the signal strength of the primary synchronization signal and the secondary synchronization signal in the information broadcasted by the network to complete the measurement process, and the broadcast period of the network is fixed, which results in incomplete matching of the requirements of the supply and demand parties, and causes a certain waste of resources, i.e. the measurement process of the user equipment is lengthened, the time delay is increased, and the performance of beam training is also affected.
In order to solve the technical problem, the inventor of the present application finds, through analysis, that the existing beam sweeping scheme uses both a physical broadcast channel and a third synchronization signal as necessary contents for each broadcast of a network, and actually, information carried by both the physical broadcast channel and the third synchronization signal mainly serves a cell search process, and if time domain positions of the physical broadcast channel and the third synchronization signal can be designed more reasonably, the number of symbols in a synchronization signal block can be effectively reduced, a broadcast period of the network can be shortened, and thus, performance of beam training can be optimized and delay can be shortened.
Based on the analysis result, the technical scheme of the embodiment of the invention configures a synchronization signal burst set, wherein the synchronization signal burst set comprises a plurality of synchronization signal bursts, and each synchronization signal burst comprises a plurality of synchronization signal blocks; and sending the synchronization signal burst set in a preset period, wherein a physical broadcast channel and a third synchronization signal multiplex the same group of symbols in the synchronization signal block. The technical scheme of the embodiment of the invention can effectively reduce the number of symbols in the synchronous signal block, and reasonably optimize the time domain positions of the physical broadcast channel and the third synchronous signal in the scanning beam.
Further, the physical broadcast channel and a third synchronization signal time division multiplex the same set of symbols. For example, in two consecutive preset periods, the same group of symbols is used for transmitting the physical broadcast channel and the third synchronization signal, so that the technical effect of time domain resource multiplexing is achieved, and the overhead of time domain resources is saved.
Further, the physical broadcast channel and a third synchronization signal frequency division multiplex the same set of symbols. For example, the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated (e.g., coded and modulated in a first manner), and mapped onto the frequency domain resources of the same group of symbols (e.g., the first frequency domain resources), and other information that changes less with time in the physical broadcast channel and the third synchronization signal, except the information, is also coded and modulated (e.g., coded and modulated in a second manner), and mapped onto the frequency domain resources of the same group of symbols (e.g., the second frequency domain resources), where the first manner is different from the second manner, and the first frequency domain resources are different from the second frequency domain resources.
Those skilled in the art understand that, when the network processes the physical broadcast channel and the third synchronization signal, the network separately extracts the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal for code modulation, and additionally performs code modulation on the information (i.e., the information that changes less with time in the physical broadcast channel and the third synchronization signal) in the physical broadcast channel and the third synchronization signal except for the foregoing code modulation, and the manners adopted by the two code modulations may be different, and the results after the two code modulations may be mapped to different frequency domain resources of the same group of symbols, so as to achieve balanced reception performance. For the other information which changes less with time, the user equipment can combine signals in different broadcast periods to obtain larger diversity gain, so that the network can adopt a low-performance coding modulation mode, and the resource overhead is reduced. For the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal, it is difficult for the user equipment to combine signals in different broadcast periods, so the network can adopt a high-performance code modulation mode to exchange resource overhead for larger coding gain.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a method for transmitting a swept beam according to a first embodiment of the present invention.
In a specific implementation, the beam sweeping transmission method provided in steps S101 to S102 described below may be performed by a chip having a beam sweeping transmission function in the network device, or may be performed by a baseband chip in the network device.
Specifically, in this embodiment, step S101 is first executed to configure a synchronization signal burst set, where the synchronization signal burst set includes a plurality of synchronization signal bursts, and the synchronization signal bursts include a plurality of synchronization signal blocks.
Then, step S102 is executed to transmit the synchronization signal burst set in a preset period, wherein the physical broadcast channel and the third synchronization signal multiplex the same set of symbols in the synchronization signal block.
Further, the same set of symbols may include one symbol or may include a plurality of symbols. Preferably, the same set of symbols may be one symbol, or two symbols.
Further, the preset period may be predetermined by the network and the ue, and may be, for example, 5 milliseconds.
Further, the physical broadcast channel may be used to carry part of Minimum System Information (MSI); the third synchronization signal may be used to carry index information of the synchronization signal block.
Further, the physical broadcast channel and the third synchronization signal may time division multiplex the same set of symbols. For example, the same symbol in the synchronization signal block may be used for transmitting the physical broadcast channel and the third synchronization signal in two consecutive preset periods (e.g., 5 ms).
In a typical application scenario, referring to fig. 2, the network performs a round of beam sweeping based on a period T, which may be 5 ms. Specifically, the network may perform a round of beam sweeping in the first 5 milliseconds to broadcast the primary synchronization signal a1, the secondary synchronization signal a2, and the physical broadcast channel a3 outward; then, another round of beam sweeping is performed in the next 5 ms to broadcast the primary, secondary and third synchronization signals a1, a2 and a3' outwards. Preferably, the symbol occupied by the physical broadcast channel a3 in the first 5 milliseconds can be occupied by the third synchronization signal a3' in the second 5 milliseconds, so that multiplexing of time domain resources is realized, and overhead of the time domain resources is effectively saved. It should be noted that, due to the limitation of the image display quality, only one synchronization signal block a in the synchronization signal burst set is shown in fig. 2, but this does not mean that only one synchronization signal block is transmitted by the one-round scanning beam, and those skilled in the art can configure the number of synchronization signal blocks included in the synchronization signal burst set according to the actual requirement.
Further, when the same group of symbols is used for transmitting the third synchronization signal, for example, the symbol occupied by the third synchronization signal a3' within the second 5 milliseconds shown with reference to fig. 2, the secondary synchronization signal a2 and the third synchronization signal a3' may use the same antenna port within the second 5 milliseconds since the secondary synchronization signal a2 and the third synchronization signal a3' are transmitted on two sequential symbols. Accordingly, after receiving the secondary synchronization signal a2 and the third synchronization signal a3', the ue may perform channel estimation and autocorrelation algorithms on the secondary synchronization signal a2 and the third synchronization signal a3' to calculate a frequency offset between the secondary synchronization signal a2 and the third synchronization signal a3 'and a base station that transmits the secondary synchronization signal a2 and the third synchronization signal a3', thereby achieving frequency synchronization.
As a variation, the primary synchronization signal a1, the secondary synchronization signal a2, and the third synchronization signal a3' may be transmitted in the first 5 milliseconds, and the primary synchronization signal a1, the secondary synchronization signal a2, and the physical broadcast channel a3 may be transmitted in the second 5 milliseconds.
Further, if the period for transmitting the synchronization signal burst set is 20 ms, the physical broadcast channel a3 may also be rate-matched into 2 symbols, and complete one transmission within 20 ms. For example, in another exemplary application scenario shown in conjunction with fig. 3, similar to the application scenario shown in fig. 2, the network performs one round of beam sweeping in two consecutive 5 milliseconds respectively to broadcast and transmit the primary synchronization signal, the secondary synchronization signal, the third synchronization signal, and the physical broadcast channel. The difference from the application scenario described in fig. 2 is that, in the application scenario shown in fig. 3, the physical broadcast channel a3 shown in fig. 2 is rate-matched to a physical broadcast channel a31 and a physical broadcast channel a32 for transmission in two preset periods (e.g., the second 5 ms and the fourth 5 ms), respectively.
In another exemplary application scenario, when the same group of symbols is used for transmitting the physical broadcast channel, the third synchronization signal may be frequency-division multiplexed with the secondary synchronization signal, that is, the base station may transmit the primary synchronization signal, the secondary synchronization signal, the third synchronization signal, and the physical broadcast channel in one round of beam scanning, where the secondary synchronization signal and the third synchronization signal are frequency-division multiplexed and are carried on the symbol where the secondary synchronization signal is located.
In a variation of this embodiment, the physical broadcast channel and the third synchronization signal may further frequency-division multiplex the same group of symbols, which may also effectively save the overhead of time domain resources. Specifically, the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, and the physical broadcast channel and the third synchronization signal may be respectively mapped to different frequency domain resource units in the plurality of frequency domain resource units to implement frequency division multiplexing of the symbols.
Preferably, the synchronization signal block index information of the third synchronization signal may occupy at least one frequency-domain resource unit of the plurality of frequency-domain resource units in a sequence form, and the physical broadcast channel occupies the remaining frequency-domain resource units of the plurality of frequency-domain resource units. For example, the frequency domain resources of the same group of symbols may be divided into 4 frequency domain resource units, wherein the physical broadcast channel occupies 3 frequency domain resource units, and the synchronization signal block index information of the third synchronization signal occupies the remaining 1 frequency domain resource unit.
As a variation, when the same group of symbols is frequency division multiplexed based on the above-described scheme, the synchronization signal block index information of the third synchronization signal may be coded and modulated and then mapped to another frequency resource unit different from the frequency resource unit occupied by the physical broadcast channel.
As another variation, the synchronization signal block index information of the third synchronization signal may also be included in the physical broadcast channel, and this variation performs code modulation on a System Frame Number (SFN) of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal, and maps the SFN and the synchronization signal block index information to any one of the frequency domain resource units, so that the ue receives and acquires the physical broadcast channel and the third synchronization signal on corresponding frequency domain resources based on a result of the code modulation.
For example, the sfn of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal may be code-modulated (for example, in a first manner), and mapped onto a frequency domain resource (for example, a first frequency domain resource) of the same group of symbols, and other information that changes less with time in the physical broadcast channel and the third synchronization signal, except the foregoing information, may also be code-modulated (for example, in a second manner), and mapped onto a frequency domain resource (for example, a second frequency domain resource) of the same group of symbols, where the first manner and the second manner are different, and the first frequency domain resource and the second frequency domain resource are different.
Those skilled in the art understand that, when the network processes the physical broadcast channel and the third synchronization signal, the network separately extracts the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal for code modulation, and additionally performs code modulation on the information (i.e., the information that changes less with time in the physical broadcast channel and the third synchronization signal) in the physical broadcast channel and the third synchronization signal except for the foregoing code modulation, and the manners adopted by the two code modulations may be different, and the results after the two code modulations may be mapped to different frequency domain resources of the same group of symbols, so as to achieve balanced reception performance.
Further, for the other information with less change over time, the user equipment may combine signals in different broadcast periods to obtain a larger diversity gain, so that the network may adopt a low-performance coded modulation mode, thereby reducing resource overhead. For the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal, it is difficult for the user equipment to combine signals in different broadcast periods, so the network can adopt a high-performance code modulation mode to exchange resource overhead for larger coding gain.
Further, the frequency domain resource of the same group of symbols may be any one of a plurality of frequency domain resources included in the same group of symbols, or may be another independent frequency domain resource designated by the same group of symbols.
In a typical application scenario, the network transmits the primary synchronization signal, the secondary synchronization signal, the physical broadcast channel, and the third synchronization signal in one round of beam sweeping (i.e., one transmission period of the synchronization signal burst set), similar to the prior art, and is different from the prior art in that in the application scenario, the physical broadcast channel and the third synchronization signal are frequency division multiplexed with the same set of symbols in the synchronization signal burst set.
Further, the physical broadcast channel and a third synchronization signal may frequency division multiplex the same symbol in the synchronization signal burst set; alternatively, the physical broadcast channel and the third synchronization signal may also be frequency division multiplexed with a plurality of symbols (e.g., two or more symbols) in the set of synchronization signal bursts.
Further, the frequency domain resources of the same group of symbols may include 4 frequency domain Resource units, where each frequency domain Resource unit occupies 6 Physical Resource blocks (PRB for short), and the same group of symbols occupies 24 Physical Resource blocks in total. In a preferred example of the present application scenario, the synchronization signal block index information of the third synchronization signal may occupy any one of the 4 frequency domain resource units separately. In a variation, the synchronization signal block index information of the third synchronization signal may occupy the same one of the 4 frequency-domain resource units together with at least a portion of information included in the system frame number of the physical broadcast channel.
Further, the sfn and the synchronization signal block index information for joint modulation may be dynamically changed, and although they cannot be combined, those skilled in the art may use a lower code rate to improve the demodulation performance.
Thus, for the technical scheme of frequency division multiplexing the same group of symbols by the physical broadcast channel and the third synchronization signal, since the information (except the system frame number) carried by the physical broadcast channel is almost static at this time, the physical broadcast channels can be continuously combined to obtain a larger time domain diversity gain, and the information receiving efficiency of the user equipment is improved.
Further, the following describes the configuration of the synchronization signal block in the time slot in detail with reference to fig. 4 to 8. Specifically, the synchronization signal block, the downlink control and data, and the guard interval and the uplink control may be configured according to the number of symbols included in the timeslot. Preferably, the downlink control and data may be configured in zero or one or two symbols of the time slot (e.g., the beginning of the time slot); one synchronization signal block can be configured in three or four symbols of the time slot, and the synchronization signal blocks transmitted by one round of scanning beams can occupy 3 xK or 4 xK symbols of the time slot in total, wherein K is the number of the synchronization signal blocks in one time slot; the downlink control, the downlink data, the guard interval, and the uplink control may be configured in the remaining symbols of the timeslot, where the downlink control and the downlink data may be referred to as downlink control and data. Further, the remaining symbols of the timeslot may also be used for configuring uplink data.
In a preferred application scenario, referring to fig. 4, the synchronization signal block a occupies three symbols in a slot (not shown in the figure), the slot includes seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control. The synchronization signal block a may correspond to the first 5 ms synchronization signal block shown in fig. 2, or may also correspond to the second 5 ms synchronization signal block shown in fig. 2; the configuration distribution of the remaining four symbols in the slot may be as shown in fig. 4, that is, the first two symbols of the slot are configured as downlink control and data b, and the last two symbols of the slot are configured as a guard interval and uplink control c.
As a variation, for seven symbols included in one slot, one downlink control and data symbol, three synchronization signal block symbols, and three downlink control and data and guard interval and uplink control symbols may also be configured. Wherein, the downlink control and data can be configured in the same symbol.
As another variation, the synchronization signal block may also occupy four symbols, two of which are used to transmit the physical broadcast channel. Accordingly, for seven symbols included in one slot, one downlink control and data symbol, four synchronization signal block symbols, and two downlink control and data and guard interval and uplink control symbols may be further configured. Wherein, the downlink control and data can be configured in the same symbol.
In yet another preferred application scenario, referring to fig. 5, the synchronization signal block a occupies three symbols in a slot (not shown in the figure), the slot includes seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control. The synchronization signal block a may correspond to the first 5 ms synchronization signal block shown in fig. 2, or may also correspond to the second 5 ms synchronization signal block shown in fig. 2; the distribution of the configuration of the remaining four symbols in the slot may be as shown in fig. 5, that is, the last four symbols of the slot are configured as downlink control and data, and guard interval and uplink control c'.
As a variant, the synchronization signal block may also occupy four symbols, two of which are used for transmitting the physical broadcast channel. Accordingly, for seven symbols included in one slot, four synchronization signal block symbols, and three downlink control and data and guard interval and uplink control symbols may also be configured.
In another preferred application scenario, referring to fig. 6, the synchronization signal block a may occupy nine symbols in a slot (not shown in the figure), each synchronization signal block a occupies three symbols, the slot includes fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control. The synchronization signal block a may correspond to the synchronization signal block in the first 5 milliseconds shown in fig. 2, or may also correspond to the synchronization signal block in the second 5 milliseconds shown in fig. 2; the distribution of the configuration of the remaining five symbols in the slot may be as shown in fig. 5, i.e. the first two symbols of the slot are configured as downlink control and data b, and the last three symbols of the slot are configured as downlink control and data and guard interval and uplink control c'.
As a variation, for fourteen symbols included in one slot, three downlink control and data symbols, nine synchronization signal block symbols, and two downlink control and data and guard intervals and uplink control symbols may also be configured.
As a further variation, for fourteen symbols included in one slot, one downlink control and data symbol, nine synchronization signal block symbols, and four downlink control and data and guard intervals and uplink control symbols may also be configured.
In another preferred application scenario, referring to fig. 7, the synchronization signal block a may occupy nine symbols in a slot (not shown in the figure), each synchronization signal block a occupies three symbols, the slot includes fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control. The synchronization signal block a may correspond to the first 5 ms synchronization signal block shown in fig. 2, or may also correspond to the second 5 ms synchronization signal block shown in fig. 2; the distribution of the configuration of the remaining five symbols in the timeslot can be as shown in fig. 7, that is, the last five symbols of the timeslot are configured as downlink control and data, and guard interval and uplink control c'.
As a variant, the synchronization signal block may also occupy four symbols, two of which are used for transmitting the physical broadcast channel. Correspondingly, for fourteen symbols included in one slot, twelve synchronization signal block symbols, two downlink control and data symbols, a guard interval and an uplink control symbol can be configured.
In another preferred application scenario, referring to fig. 8, the synchronization signal block a may occupy twelve symbols in a slot (not shown in the figure), each synchronization signal block a occupies three symbols, the slot includes fourteen symbols, and the remaining two symbols are used for configuring the downlink control and data and the guard interval and uplink control. The synchronization signal block a may correspond to the first 5 ms synchronization signal block shown in fig. 2, or may also correspond to the second 5 ms synchronization signal block shown in fig. 2; the distribution of the configuration of the remaining two symbols in the slot may be as shown in fig. 8, that is, the last two symbols of the slot are configured as downlink control and data, and guard interval and uplink control c'.
Those skilled in the art can adjust the configuration of the synchronization signal block, the downlink control and data, and the guard interval and the uplink control in the timeslot according to actual needs, which is not described herein again.
Therefore, with the solution of the first embodiment, the network can complete one round of beam sweeping in a period significantly shorter than that in the prior art (e.g. 5 ms), and for a ue not accessing the network, the network can continuously receive two rounds of beam sweeping to acquire all information required for completing initial cell selection, which satisfies the existing 5G system protocol for completing cell search within 10 ms; for the user equipment which has accessed to the network, after receiving the signal strength of the primary synchronization signal and the secondary synchronization signal transmitted in one round of beam scanning, the measurement process can be completed, and the existing 5G system protocol which completes one measurement in 5 milliseconds is also satisfied. Those skilled in the art understand that based on the technical solution of the embodiment of the present invention, the number of symbols in the synchronization signal block can be effectively reduced, and the time domain positions of the physical broadcast channel and the third synchronization signal in the swept beam can be optimized more reasonably.
Fig. 9 is a schematic structural diagram of a beam scanning transmission apparatus according to a second embodiment of the present invention. Those skilled in the art understand that the sending apparatus 6 for scanning beams according to the present embodiment is used to implement the technical solutions of the methods described in the embodiments shown in fig. 1 to fig. 8. Specifically, in this embodiment, the beam-sweeping transmitting device 6 includes a configuration module 61 configured to configure a synchronization signal burst set, where the synchronization signal burst set includes a plurality of synchronization signal bursts, and the synchronization signal bursts include a plurality of synchronization signal blocks; a sending module 62, configured to send the synchronization signal burst set at a preset period, where a physical broadcast channel and a third synchronization signal multiplex a same group of symbols in the synchronization signal block.
Further, the physical broadcast channel and a third synchronization signal time-division multiplex the same set of symbols.
Preferably, the time division multiplexing the same group of symbols by the physical broadcast channel and the third synchronization signal means: and in two continuous preset periods, the same group of symbols are respectively used for transmitting the physical broadcast channel and the third synchronization signal.
Preferably, when the same group of symbols is used for transmitting the third synchronization signal, the third synchronization signal uses the same antenna port as the secondary synchronization signal carried by the symbol before the same group of symbols.
Further, the physical broadcast channel and a third synchronization signal frequency division multiplex the same set of symbols.
Preferably, the frequency domain resources of the same group of symbols include multiple frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal by the same group of symbols refers to: mapping the physical broadcast channel and the third synchronization signal into different frequency domain resource units of the plurality of frequency domain resource units, respectively.
Preferably, the synchronization signal block index information of the third synchronization signal occupies at least one frequency-domain resource unit of the plurality of frequency-domain resource units in a sequence form, and the physical broadcast channel occupies the remaining frequency-domain resource units of the plurality of frequency-domain resource units; or after the synchronization signal block index information of the third synchronization signal is coded and modulated, the synchronization signal block index information is mapped to other frequency domain resource units different from the frequency domain resource units occupied by the physical broadcast channel.
Preferably, the frequency domain resources of the same group of symbols include multiple frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal by the same group of symbols refers to: the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, wherein the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated, and are mapped to any one of the plurality of frequency domain resource units.
Further, the synchronization signal block occupies three symbols in a slot, the slot includes seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control.
Further, the synchronization signal blocks occupy nine symbols in a slot, each synchronization signal block occupies three symbols, the slot includes fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control.
For more contents of the operation principle and the operation mode of the beam-sweeping transmitting apparatus 6, reference may be made to the relevant description in fig. 1 to fig. 8, and details are not repeated here.
In a specific implementation, the above-mentioned beam scanning transmitting device may correspond to a Chip having a beam scanning transmitting function in a network device, or correspond to a Chip having a data processing function, such as a System-On-a-Chip (SOC), a baseband Chip, and the like; or the chip module group which is corresponding to the network equipment and comprises a chip with the beam scanning sending function; or to a chip module having a chip with a data processing function, or to a network device.
Fig. 10 is a flowchart of a beam sweeping receiving method according to a third embodiment of the present invention. The scanning beam may be transmitted by the scanning beam transmitting apparatus 6 shown in fig. 9 according to the technical solutions of the methods shown in fig. 1 to 8.
In a specific implementation, the beam sweeping receiving method provided in steps S201 to S202 below may be performed by a chip having a beam sweeping receiving function in the user equipment, or may be performed by a baseband chip in the user equipment.
Specifically, in this embodiment, step S201 is executed first, and a synchronization signal burst set is received, where the synchronization signal burst set is sent according to a preset period, the synchronization signal burst set includes a plurality of synchronization signal bursts, and the synchronization signal bursts include a plurality of synchronization signal blocks;
then, step S202 is executed to obtain a physical broadcast channel and a third synchronization signal included in the synchronization signal burst set, where the physical broadcast channel and the third synchronization signal multiplex the same set of symbols in the synchronization signal block.
Further, the physical broadcast channel and a third synchronization signal time-division multiplex the same set of symbols. For example, the base station may transmit the physical broadcast channel and the third synchronization signal respectively with the same group of symbols in two consecutive preset periods based on the technical solutions of the methods described in fig. 1 to fig. 8.
In a preferred example, the step S202 may include the steps of: and acquiring the physical broadcast channel and a third synchronization signal from the same group of symbols in the two continuous preset periods respectively. For example, the ue may agree with the base station in advance, the base station frequency-division multiplexes the same group of symbols to respectively transmit the physical broadcast channel and the third synchronization signal based on the same group of symbols in two consecutive 5 milliseconds, and the ue receives the swept beams transmitted by the base station in two consecutive 5 milliseconds when performing cell search, so as to receive the physical broadcast channel carried by the same group of symbols in the first 5 milliseconds and receive the third synchronization signal carried by the same group of symbols in the second 5 milliseconds.
Further, when the same group of symbols is used for transmitting the third synchronization signal, the user equipment may further perform frequency synchronization based on the third synchronization signal and a secondary synchronization signal carried by a symbol before the same group of symbols, where the third synchronization signal and the secondary synchronization signal use the same antenna port. For example, referring to fig. 2, after receiving the secondary synchronization signal a2 and the third synchronization signal a3', the ue may perform a channel estimation and autocorrelation algorithm on the secondary synchronization signal a2 and the third synchronization signal a3' to calculate a frequency offset between the secondary synchronization signal a2 and the third synchronization signal a3 'and a base station that transmits the secondary synchronization signal a2 and the third synchronization signal a3', so as to achieve frequency synchronization.
In a variation of this embodiment, the physical broadcast channel and the third synchronization signal may also be frequency division multiplexed with the same set of symbols. The principle and method of frequency division multiplexing may refer to the technical solutions of the methods described in fig. 1 to 8.
Preferably, the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal for the same group of symbols means: mapping the physical broadcast channel and the third synchronization signal into different frequency domain resource units of the plurality of frequency domain resource units, respectively. Accordingly, the step S202 may include the steps of: and respectively acquiring the physical broadcast channel and the third synchronous signal from different frequency domain resource units in the plurality of frequency domain resource units.
Preferably, the synchronization signal block index information of the third synchronization signal occupies at least one of the plurality of frequency domain resource units in a sequence form, and the physical broadcast channel occupies the remaining frequency domain resource units of the plurality of frequency domain resource units; or after the synchronization signal block index information of the third synchronization signal is coded and modulated, the synchronization signal block index information is mapped to other frequency domain resource units different from the frequency domain resource units occupied by the physical broadcast channel.
As a variation, the frequency domain resources of the same group of symbols include multiple frequency domain resource units, and the frequency division multiplexing the same group of symbols by the physical broadcast channel and the third synchronization signal may further refer to: the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, and a system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated and mapped to any one of the plurality of frequency domain resource units.
Further, the synchronization signal block may occupy three symbols in a slot, where the slot includes seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control. Specifically, those skilled in the art may refer to the description related to the method technical solutions described in fig. 1 to fig. 8, which is not repeated herein.
As a variation, the synchronization signal block may also occupy nine symbols in a slot, each synchronization signal block occupies three symbols, the slot includes fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control. Specifically, those skilled in the art may refer to the description related to the method technical solutions described in fig. 1 to fig. 8, which is not repeated herein.
In a typical application scenario, when the ue performs initial cell selection, the ue may receive the synchronization signal burst set according to a predetermined agreement with the base station (or network), and when the predetermined agreement indicates that the physical broadcast channel and the third synchronization signal time-division multiplex the same set of symbols in the synchronization signal block included in the synchronization signal burst set, the ue may receive the synchronization signal burst set sent by the base station in two consecutive predetermined periods (e.g. 5 ms) to obtain the physical broadcast channel and the third synchronization signal from the same set of symbols, respectively. For example, the third synchronization signal may be acquired from the first 5 milliseconds and then the physical broadcast channel may be acquired at the same set of symbols from the second 5 milliseconds.
As a variation, when the pre-agreement indicates that the physical broadcast channel and the third synchronization signal are frequency division multiplexed with the same group of symbols, the ue may receive a synchronization signal burst set sent by the base station in any preset period (e.g., 5 milliseconds), and obtain the physical broadcast channel and the third synchronization signal from different frequency resource units included in the same group of symbols according to a rule predefined by the base station.
Further, after the user equipment completes the initial cell selection, the measurement process may be completed according to the synchronization signal burst set sent by the base station according to the preset period. For example, the signal strength of the primary synchronization signal and the secondary synchronization signal included in a synchronization signal burst set transmitted by the base station in 5 milliseconds can be detected, so as to complete the measurement process.
Fig. 11 is a schematic structural diagram of a beam scanning receiving apparatus according to a fourth embodiment of the present invention. Those skilled in the art understand that the beam sweeping receiving apparatus 9 according to the present embodiment is used for implementing the method technical solution described in the embodiment shown in fig. 10. Specifically, in this embodiment, the beam-sweeping receiving apparatus 9 includes a receiving module 91, configured to receive a synchronization signal burst set, where the synchronization signal burst set is sent according to a preset period, the synchronization signal burst set includes a plurality of synchronization signal bursts, and the synchronization signal bursts include a plurality of synchronization signal blocks; an obtaining module 92, configured to obtain a physical broadcast channel and a third synchronization signal included in the synchronization signal burst set, where the physical broadcast channel and the third synchronization signal multiplex a same set of symbols in the synchronization signal block.
Further, the physical broadcast channel and a third synchronization signal time-division multiplex the same set of symbols. Preferably, the time division multiplexing the same group of symbols by the physical broadcast channel and the third synchronization signal means: and in two continuous preset periods, the same group of symbols are respectively used for transmitting the physical broadcast channel and the third synchronous signal.
Further, the obtaining module 92 includes a first obtaining sub-module 921, configured to obtain the physical broadcast channel and the third synchronization signal from the same group of symbols in the two consecutive preset periods, respectively.
Further, the obtaining module 92 further includes a synchronization sub-module 922, configured to perform frequency synchronization based on the third synchronization signal and a secondary synchronization signal carried by a symbol before the same group of symbols when the same group of symbols is used for transmitting the third synchronization signal, where the third synchronization signal and the secondary synchronization signal use the same antenna port.
In a variation of this embodiment, the physical broadcast channel and the third synchronization signal frequency division multiplex the same set of symbols. Preferably, the frequency domain resources of the same group of symbols include multiple frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal by the same group of symbols refers to: mapping the physical broadcast channel and the third synchronization signal into different frequency domain resource units of the plurality of frequency domain resource units, respectively.
Further, the obtaining module 92 includes a second obtaining sub-module 923 configured to obtain the physical broadcast channel and the third synchronization signal from different frequency-domain resource units of the multiple frequency-domain resource units, respectively.
Preferably, the synchronization signal block index information of the third synchronization signal occupies at least one frequency-domain resource unit of the plurality of frequency-domain resource units in a sequence form, and the physical broadcast channel occupies the remaining frequency-domain resource units of the plurality of frequency-domain resource units; or after the synchronization signal block index information of the third synchronization signal is coded and modulated, the synchronization signal block index information is mapped to other frequency domain resource units different from the frequency domain resource units occupied by the physical broadcast channel.
As a variation, the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, and the frequency division multiplexing the same group of symbols by the physical broadcast channel and the third synchronization signal means: the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, and a system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated and mapped to any one of the plurality of frequency domain resource units.
Further, the synchronization signal block occupies three symbols in a slot, the slot includes seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control.
Further, the synchronization signal blocks occupy nine symbols in a slot, each synchronization signal block occupies three symbols, the slot includes fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control.
For more details about the working principle and the working mode of the beam-sweeping receiving apparatus 9, reference may be made to the relevant description in fig. 10, and details are not repeated here.
In a specific implementation, the above-mentioned beam-sweeping receiving device may correspond to a Chip having a beam-sweeping receiving function in the user equipment, or correspond to a Chip having a data processing function, such as a System-On-a-Chip (SOC), a baseband Chip, etc.; or the chip module group comprises a chip with a beam sweeping receiving function in the user equipment; or to a chip module having a chip with data processing function, or to a user equipment.
In a specific implementation, each module/unit included in each apparatus and product described in the foregoing embodiments may be a software module/unit, may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit.
For example, for each apparatus and product applied to or integrated into a chip, each module/unit included in the apparatus and product may all be implemented by hardware such as a circuit, or at least a part of the modules/units may be implemented by a software program running on a processor integrated within the chip, and the remaining (if any) part of the modules/units may be implemented by hardware such as a circuit; for each device and product applied to or integrated with the chip module, each module/unit included in the device and product may be implemented by hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least part of the modules/units may be implemented by a software program running on a processor integrated inside the chip module, and the rest (if any) part of the modules/units may be implemented by hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
The embodiment of the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program performs the steps of the method provided in any of the above embodiments. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory. The storage medium may include ROM, RAM, magnetic or optical disks, etc.
Another device for sending a swept beam according to an embodiment of the present invention includes a memory and a processor, where the memory stores a computer program that can be executed on the processor, and the processor executes the steps of the method for sending a swept beam according to the embodiment corresponding to fig. 1 to 8 when executing the computer program.
Another receiving apparatus for scanning a beam is provided in an embodiment of the present invention, which includes a memory and a processor, where the memory stores a computer program that is executable on the processor, and the processor executes the steps of the receiving method for scanning a beam provided in the embodiment corresponding to fig. 10 when executing the computer program.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (25)

1. A method for transmitting a swept beam, comprising:
configuring a set of synchronization signal bursts, the set of synchronization signal bursts comprising a plurality of synchronization signal bursts, the synchronization signal bursts comprising a plurality of synchronization signal blocks;
transmitting the synchronization signal burst set at a preset period, wherein a physical broadcast channel and a third synchronization signal frequency division multiplex the same group of symbols in the synchronization signal block;
wherein the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal with the same group of symbols means:
the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, wherein the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated, and are mapped to any one of the plurality of frequency domain resource units.
2. The beam-scanning transmission method of claim 1, wherein the frequency-domain resources of the same group of symbols comprise a plurality of frequency-domain resource units, and the frequency-division multiplexing the same group of symbols with the physical broadcast channel and the third synchronization signal is performed by:
mapping the physical broadcast channel and the third synchronization signal into different frequency domain resource units of the plurality of frequency domain resource units, respectively.
3. The beam-scanning transmission method of claim 2, wherein the synchronization signal block index information of the third synchronization signal occupies at least one of the plurality of frequency-domain resource units in a sequence form, and the physical broadcast channel occupies the remaining frequency-domain resource units of the plurality of frequency-domain resource units; or after the synchronization signal block index information of the third synchronization signal is coded and modulated, the synchronization signal block index information is mapped to other frequency domain resource units different from the frequency domain resource units occupied by the physical broadcast channel.
4. The beam-scanning transmission method according to any one of claims 1 to 3, wherein the synchronization signal block occupies three symbols in a slot, the slot comprises seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control.
5. The method of any of claims 1-3, wherein the synchronization signal blocks occupy nine symbols in a slot, each synchronization signal block occupies three symbols, the slot comprises fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control.
6. A beam sweeping transmission apparatus, comprising:
a configuration module configured to configure a set of synchronization signal bursts, the set of synchronization signal bursts comprising a plurality of synchronization signal bursts, the synchronization signal bursts comprising a plurality of synchronization signal blocks;
a sending module, configured to send the synchronization signal burst set at a preset period, where a physical broadcast channel and a third synchronization signal frequency-division multiplex a same set of symbols in the synchronization signal block;
wherein the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal with the same group of symbols means:
the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, wherein the system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated, and are mapped to any one of the plurality of frequency domain resource units.
7. The apparatus of claim 6, wherein the frequency-domain resources of the same set of symbols comprise a plurality of frequency-domain resource units, and wherein the frequency-division multiplexing the physical broadcast channel and the third synchronization signal for the same set of symbols means:
mapping the physical broadcast channel and the third synchronization signal into different frequency domain resource units of the plurality of frequency domain resource units, respectively.
8. The beam-scanning transmitting device of claim 7, wherein the synchronization signal block index information of the third synchronization signal occupies at least one of the plurality of frequency-domain resource units in sequence, and the physical broadcast channel occupies the remaining frequency-domain resource units of the plurality of frequency-domain resource units; or after the synchronization signal block index information of the third synchronization signal is coded and modulated, the third synchronization signal is mapped to another frequency domain resource unit different from the frequency domain resource unit occupied by the physical broadcast channel.
9. The beam-sweeping transmitting device of any one of claims 6-8, wherein the synchronization signal block occupies three symbols in a slot, the slot comprises seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control.
10. The transmitting device of beam scanning according to any of claims 6 to 8, wherein the synchronization signal blocks occupy nine symbols in a slot, each synchronization signal block occupies three symbols, the slot comprises fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control.
11. A method for beam sweeping reception, comprising:
receiving a synchronization signal burst set, wherein the synchronization signal burst set is sent out according to a preset period, the synchronization signal burst set comprises a plurality of synchronization signal bursts, and the synchronization signal bursts comprise a plurality of synchronization signal blocks;
acquiring a physical broadcast channel and a third synchronous signal which are included in the synchronous signal burst set, wherein the physical broadcast channel and the third synchronous signal are used for frequency division multiplexing of the same group of symbols in the synchronous signal block;
wherein the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal with the same group of symbols means:
the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, and a system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated and mapped to any one of the plurality of frequency domain resource units.
12. The method of beam-sweeping receiving according to claim 11, wherein the frequency-domain resources of the same set of symbols include a plurality of frequency-domain resource units, and the frequency-division multiplexing the same set of symbols with the physical broadcast channel and the third synchronization signal means:
mapping the physical broadcast channel and the third synchronization signal into different frequency domain resource units of the plurality of frequency domain resource units, respectively.
13. The beam sweeping receiving method of claim 12, wherein the acquiring the physical broadcast channel and the third synchronization signal included in the synchronization signal burst set comprises:
and respectively acquiring the physical broadcast channel and the third synchronous signal from different frequency domain resource units in the plurality of frequency domain resource units.
14. The beam-sweeping receiving method of claim 13, wherein the synchronization signal block index information of the third synchronization signal occupies at least one of the plurality of frequency-domain resource units in sequence, and the physical broadcast channel occupies the remaining frequency-domain resource units of the plurality of frequency-domain resource units; or after the synchronization signal block index information of the third synchronization signal is coded and modulated, the third synchronization signal is mapped to another frequency domain resource unit different from the frequency domain resource unit occupied by the physical broadcast channel.
15. The beam-sweeping receiving method according to any one of claims 11 to 14, wherein the synchronization signal block occupies three symbols in a slot, the slot includes seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control.
16. The method of beam-sweeping reception according to any one of claims 11 to 14, wherein the synchronization signal blocks occupy nine symbols in a slot, each synchronization signal block occupies three symbols, the slot includes fourteen symbols, and the remaining five symbols are used for configuring downlink control and data and guard interval and uplink control.
17. A beam scanning receiving apparatus, comprising:
a receiving module, configured to receive a synchronization signal burst set, where the synchronization signal burst set is sent according to a preset period, the synchronization signal burst set includes multiple synchronization signal bursts, and each synchronization signal burst includes multiple synchronization signal blocks;
an obtaining module, configured to obtain a physical broadcast channel and a third synchronization signal included in the synchronization signal burst set, where the physical broadcast channel and the third synchronization signal frequency-division multiplex a same set of symbols in the synchronization signal block;
wherein the frequency domain resources of the same group of symbols include a plurality of frequency domain resource units, and the frequency division multiplexing of the physical broadcast channel and the third synchronization signal with the same group of symbols means:
the synchronization signal block index information of the third synchronization signal is included in the physical broadcast channel, and a system frame number of the physical broadcast channel and the synchronization signal block index information of the third synchronization signal are coded and modulated and mapped to any one of the plurality of frequency domain resource units.
18. The beam-scanning receiving apparatus of claim 17, wherein the frequency domain resources of the same group of symbols comprise a plurality of frequency domain resource units, and the frequency division multiplexing the physical broadcast channel and the third synchronization signal refers to:
mapping the physical broadcast channel and the third synchronization signal into different frequency domain resource units of the plurality of frequency domain resource units, respectively.
19. The beam-sweeping receiving device of claim 18, wherein the obtaining module comprises:
a second obtaining sub-module, configured to obtain the physical broadcast channel and the third synchronization signal from different frequency resource units in the multiple frequency resource units, respectively.
20. The beam-scanning receiving apparatus of claim 19, wherein the synchronization signal block index information of the third synchronization signal occupies at least one of the plurality of frequency-domain resource units in sequence, and the physical broadcast channel occupies the remaining frequency-domain resource units of the plurality of frequency-domain resource units; or after the synchronization signal block index information of the third synchronization signal is coded and modulated, the third synchronization signal is mapped to another frequency domain resource unit different from the frequency domain resource unit occupied by the physical broadcast channel.
21. The beam-sweeping receiving device of any one of claims 17-20, wherein the synchronization signal block occupies three symbols in a slot, the slot includes seven symbols, and the remaining four symbols are used for configuring downlink control and data, and guard interval and uplink control.
22. The beam-sweeping receiving device of any one of claims 17-20, wherein the synchronization signal blocks occupy nine symbols in a slot, each synchronization signal block occupies three symbols, the slot comprises fourteen symbols, and the remaining five symbols are used for configuring downlink control and data, and guard interval and uplink control.
23. A computer-readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the method of any one of claims 1 to 5, or any one of claims 11 to 16.
24. A beam sweeping transmitting apparatus comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the method of any of claims 1 to 5.
25. A beam sweeping receiving apparatus comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the method of any of claims 11 to 16.
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