WO2023160658A1 - 通信方法、网络设备和终端设备 - Google Patents

通信方法、网络设备和终端设备 Download PDF

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Publication number
WO2023160658A1
WO2023160658A1 PCT/CN2023/078202 CN2023078202W WO2023160658A1 WO 2023160658 A1 WO2023160658 A1 WO 2023160658A1 CN 2023078202 W CN2023078202 W CN 2023078202W WO 2023160658 A1 WO2023160658 A1 WO 2023160658A1
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WO
WIPO (PCT)
Prior art keywords
time window
terminal device
network device
downlink
downlink common
Prior art date
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PCT/CN2023/078202
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English (en)
French (fr)
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WO2023160658A9 (zh
Inventor
胡锦娜
马川
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华为技术有限公司
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Publication of WO2023160658A1 publication Critical patent/WO2023160658A1/zh
Publication of WO2023160658A9 publication Critical patent/WO2023160658A9/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present application relates to the communication field, and more specifically relates to a communication method, network equipment and terminal equipment for public signal transmission.
  • Synchronization signal and physical broadcast channel block are important public signals in the new radio (new radio, NR) communication system.
  • the cycle of SSB can be extended under light load or no load to achieve the purpose of energy saving.
  • multiple SSBs are carried in beams in different directions for transmission. If the cycle of SSB is adjusted at the cell level, that is, the cycle of SSB carried on beams in different directions remains the same, when the cycle is adjusted to be greater than the default 20 ms, the access of terminal equipment will fail.
  • Terminal devices may also miss SSBs carried on other beams. This may be detrimental to beam applications in some scenarios. For example, this may result in wrong cell signal quality estimates being made, thereby affecting cell selection or reselection results. If the default search cycle of the terminal equipment is directly lengthened, the efficiency of cell search will be affected.
  • Embodiments of the present disclosure provide an improved communication scheme to overcome the above-mentioned and other potential problems.
  • the period of the SSB carried on beams in different directions may be different.
  • finer-grained adjustments to the period of the SSB can be realized, thereby reducing SSB overhead and increasing opportunities for symbols to be turned off, thereby achieving energy saving effects.
  • the period of the SSB carried on some beams can be made shorter than the default search period, so that the terminal device can discover the cell.
  • a communication method includes: the first network device generates system information, the system information includes a first indication, and the first indication is used to indicate periods of multiple groups of downlink public signals from the first network device, and the multiple groups of downlink Periods of each group of downlink common signals in the common signals are different; and the first network device broadcasts the system information.
  • the periods of multiple groups of downlink common signals of the current cell can be notified, so as to facilitate reception of downlink common signals of different periods.
  • the system information may further include a first parameter set, the first parameter set is used to indicate conditions for adjustment of a first time window, and the first time window is used by the terminal device at the The frequency points in a set of frequency points receive the downlink public signal from the first network device.
  • the adjustment of the first time window can be facilitated.
  • a communication method includes: the first network device generates system information, the system information includes a second indication, and the second indication is used to indicate different periods of multiple sets of downlink common signals from the second network equipment, the multiple sets of downlink common signals Periods of each group of downlink common signals in the signals are different; and the first network device broadcasts the system information.
  • the information of multiple sets of downlink common signals from adjacent cells can be notified Period, in order to receive downlink common signals from adjacent cells with different periods.
  • the system information may further include a second parameter set, the second parameter set is used to indicate conditions for adjustment of a second time window, and the second time window is used by the terminal device at the The frequency points in the two frequency point sets receive the downlink public signal of the second network device.
  • the adjustment of the second time window can be facilitated.
  • a communication method includes: the terminal device receives system information from a first network device, the system information includes a first indication, and the first indication is used to indicate periods of multiple sets of downlink common signals from the first network device, the Periods of each group of downlink common signals in the plurality of groups of downlink common signals are different; and the terminal device determines periods of the plurality of groups of downlink common signals of the first network device based on the first indication.
  • the terminal device determines periods of multiple groups of downlink common signals of the current cell, so as to receive downlink common signals of different periods.
  • the method may further include: the terminal device adjusts the first time window based on the determined period, and the first time window is used to perform an operation at a frequency point in the first frequency point set from receiving the downlink public signal of the first network device; and receiving, by the terminal device at the first frequency point, the group of downlink public signals that are not described One or more sets of downlink public signals received by terminal equipment. In this way, the reception of downlink common signals of different periods from the current cell can be realized.
  • the terminal device may adjust the first time window by setting the first time window for the first frequency point as the maximum value among periods of the multiple sets of downlink common signals . In this way, multiple sets of downlink common signals from the current cell can be ensured to be received.
  • the method may further include: in response to receiving the one or more sets of downlink public signals, the terminal device stops the downlink public signals to the first network device at the first frequency signal reception. Therefore, the overhead of receiving the downlink common signal can be saved, and the communication efficiency can be improved.
  • the method may further include: the terminal device measures the multiple sets of received downlink common signals; and the terminal device performs cell selection based on the measurement result.
  • efficient and correct cell selection can be realized.
  • the method may further include: the terminal device uses the first time window to perform the downlink public signal from the first network device at a frequency point in the first frequency point set receiving; and in response to receiving a downlink public signal from the first network device at a first frequency point in the first frequency point set, the terminal device determines whether to adjust the first time window.
  • the terminal device uses the first time window to perform the downlink public signal from the first network device at a frequency point in the first frequency point set receiving; and in response to receiving a downlink public signal from the first network device at a first frequency point in the first frequency point set, the terminal device determines whether to adjust the first time window.
  • the terminal device uses the first time window to perform the downlink public signal from the first network device at a frequency point in the first frequency point set receiving; and in response to receiving a downlink public signal from the first network device at a first frequency point in the first frequency point set, the terminal device determines whether to adjust the first time window.
  • the system information may further include a first parameter set for indicating conditions for the adjustment of the first time window.
  • the terminal device may determine whether the condition for adjusting the first time window is met based on the first parameter set; and if the condition for adjusting the first time window is met, then It is determined to adjust the first time window.
  • the influence of the adjustment of the first time window on the time delay of downlink common signal application (for example, the time delay of cell measurement) can be further improved.
  • a communication method includes: the terminal device receives at least one of first system information from a first network device and second system information from a second network device, the first system information includes a second indication, and the second system The information includes a third indication, and both the second indication and the third indication are used to indicate periods of multiple sets of downlink common signals from the second network device, and each set of downlink common signals in the multiple sets of downlink common signals the periods of the signals are different; and the terminal device is based on at least one of the second indication and the third indication One item less is used to determine the period of multiple sets of downlink common signals of the second network device.
  • periods of multiple sets of downlink common signals from adjacent cells can be determined, so as to receive downlink common signals of different periods from adjacent cells.
  • the method may further include: based on the second indication, the terminal device initializes a second time window to the minimum value among periods of the plurality of sets of downlink common signals, and the second time window Used by the terminal device to receive the downlink public signal of the second network device at a frequency point in the second frequency point set; and the terminal device adopts the initialized second time window, in the first The reception of the downlink public signal from the second network device is performed at the frequency points in the two frequency point sets. In this way, a fast search for the frequency points for sending downlink common signals of adjacent cells in the second set of frequency points can be realized.
  • the method may further include: the terminal device adjusting a second time window based on the determined period, and the second time window is used by the terminal device at a frequency point in the second frequency point set receiving the downlink public signal of the second network device; and the terminal device receives the unreceived downlink public signal of the plurality of sets of downlink public signals at the second frequency point by using the adjusted second time window One or more sets of downlink public signals received by the terminal equipment. In this way, the reception of downlink common signals of different periods from adjacent cells can be realized.
  • the terminal device uses the second time window to perform reception of the downlink common signal from the second network device at a frequency point in the second frequency point set; and in response to A downlink public signal from the second network device is received at a second frequency point in the second frequency point set, and the terminal device determines whether to adjust the second time window. Therefore, it is only judged at the second frequency point where the second network device sends the downlink public signal whether to adjust the second time window, thereby improving the delay of the adjustment of the second time window to the application of the downlink public signal (for example, the time delay of cell measurement) )Impact.
  • the first system information may further include a second parameter set for indicating conditions for the adjustment of the second time window.
  • the terminal device may determine whether the condition for adjusting the second time window is met based on the second parameter set; and if the condition for adjusting the second time window is met, then It is determined to adjust the second time window.
  • the influence of the adjustment of the second time window on the time delay of downlink common signal application (for example, the time delay of cell measurement) can be further improved.
  • the second system information may further include a third parameter set for indicating conditions for the adjustment of the second time window.
  • the terminal device may determine whether the condition for adjusting the second time window is met based on the third parameter set; and if the condition for adjusting the second time window is met, then It is determined to adjust the second time window.
  • the influence of the adjustment of the second time window on the time delay of downlink common signal application (for example, the time delay of cell measurement) can be further improved.
  • the terminal device may adjust the second time by setting the second time window for the second frequency point as the maximum value among periods in the multiple sets of downlink common signals window. In this way, multiple sets of downlink common signals from adjacent cells can be received.
  • the method may further include: in response to receiving the one or more sets of downlink public signals, the terminal device stops the downlink public signal to the second network device at the second frequency point signal reception. In this way, the overhead for receiving downlink common signals of adjacent cells can be saved, and communication efficiency can be improved.
  • the method may further include: the terminal device measures the multiple sets of received downlink common signals; and the terminal device performs cell reselection based on the measurement result.
  • efficient and correct cell selection can be realized.
  • the downlink common signal may include at least one of the following: a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel signal, or a demodulation reference signal for a physical broadcast channel.
  • a network device includes: a processor configured to For generating system information, the system information includes a first indication, the first indication is used to indicate the period of multiple sets of downlink common signals from the network device, and each set of downlink common signals in the multiple sets of downlink common signals The period of the signal is different; and a transmitter configured to broadcast the system information. In this way, the periods of multiple sets of downlink common signals of the current cell can be notified.
  • the system information may further include a first parameter set, the first parameter set is used to indicate conditions for adjustment of a first time window, and the first time window is used by the terminal device at the The frequency points in a set of frequency points receive the downlink public signal from the first network device.
  • the adjustment of the first time window can be facilitated.
  • a network device includes: a processor configured to generate system information, the system information includes a second indication, and the second indication is used to indicate periods of multiple sets of downlink common signals from another network device, the multiple Periods of each set of downlink common signals in the set of downlink common signals are different; and a transmitter configured to broadcast the system information. In this way, adjacent cells can be notified of the periods of multiple sets of downlink common signals.
  • the system information may further include a second parameter set, the second parameter set is used to indicate conditions for adjustment of a second time window, and the second time window is used by the terminal device at the The frequency points in the two frequency point sets receive the downlink public signal of the second network device.
  • the adjustment of the second time window can be facilitated.
  • a terminal device includes: a receiver configured to receive system information from a network device, where the system information includes a first indication, and the first indication is used to indicate periods of multiple sets of downlink common signals from the network device , the period of each set of downlink common signals in the plurality of sets of downlink common signals is different; and the processor is configured to determine the periods of the plurality of sets of downlink common signals of the network device based on the first indication. Thus, periods of multiple groups of downlink common signals of the current cell can be determined.
  • the processor may be further configured to: adjust the first time window based on the determined period, and the first time window is used to control the frequency points in the first frequency point set Receiving a downlink public signal from the first network device.
  • the receiver may also be configured to: use the adjusted first time window to receive a group of the multiple groups of downlink public signals not received by the terminal device at the first frequency point or multiple sets of downlink common signals. In this way, the reception of downlink common signals of different periods from the current cell can be realized.
  • the processor may be configured to: adjust the frequency by setting the first time window for the first frequency point as the maximum value among periods of the plurality of sets of downlink common signals. Describe the first time window. In this way, multiple sets of downlink common signals from the current cell can be ensured to be received.
  • the processor may be configured to: in response to receiving the one or more sets of downlink common signals, stop the downlink common signals to the first network device at the first frequency signal reception. Therefore, the overhead of receiving the downlink common signal can be saved, and the communication efficiency can be improved.
  • the processor may be configured to: measure the multiple sets of received downlink common signals; and perform cell selection based on the measurement results. Thus, efficient and correct cell selection can be realized.
  • the receiver may be further configured to: use the first time window to perform an analysis of the downlink public signal from the first network device at a frequency point in the first frequency point set reception.
  • the processor may be further configured to: in response to receiving a downlink public signal from the first network device at a first frequency point in the first frequency point set, the terminal device determines whether to adjust the Describe the first time window. Thus, it is only judged at the first frequency point where the first network device sends the downlink public signal whether to adjust the first time window, thereby improving the time delay applied to the downlink public signal (such as the time delay of cell measurement) of the adjustment of the first time window. )Impact.
  • the system information may also include a first parameter set, the first parameter set is used to indicate the A condition for said adjustment of said first time window.
  • the processor may be configured to: determine, based on the first parameter set, whether the condition for adjusting the first time window is met; and if the condition for adjusting the first time window is met, If the condition is met, it is determined to adjust the first time window.
  • a terminal device includes: a receiver configured to receive at least one of first system information from a first network device and second system information from a second network device, the first system information including a second indication , the second system information includes a third indication, and both the second indication and the third indication are used to indicate periods of multiple sets of downlink common signals from the second network device, and the multiple sets of downlink common signals The period of each group of downlink common signals in is different; and the processor is configured to determine multiple groups of downlink signals of the second network device based on at least one of the second indication and the third indication The period of the common signal. Thus, periods of multiple groups of downlink common signals of adjacent cells can be determined.
  • the processor may be further configured to: based on the second indication, the terminal device initializes the second time window to the minimum value among periods of the plurality of sets of downlink common signals, so The second time window is used by the terminal device to receive the downlink public signal of the second network device at a frequency point in the second frequency point set.
  • the receiver may also be configured to: use the initialized second time window to perform reception of the downlink common signal from the second network device at a frequency point in the second frequency point set . In this way, effective reception of downlink common signals of different periods of adjacent cells can be realized.
  • the processor may be further configured to: the terminal device adjusts a second time window based on the determined period, and the second time window is used by the terminal device to gather at the second frequency point The reception of the downlink public signal of the second network device at the frequency point in .
  • the receiver may also be configured to: use the adjusted second time window to receive a group of the plurality of groups of downlink public signals not received by the terminal device at the second frequency point or multiple sets of downlink common signals. In this way, the reception of downlink common signals of different periods from adjacent cells can be realized.
  • the receiver may be further configured to: use the second time window to perform an analysis of the downlink public signal from the second network device at a frequency point in the second frequency point set reception.
  • the processor may also be configured to: determine whether to adjust the second time in response to receiving a downlink public signal from the second network device at a second frequency point in the second frequency point set window. Therefore, it is only judged at the second frequency point where the second network device sends the downlink public signal whether to adjust the second time window, thereby improving the delay of the adjustment of the second time window to the application of the downlink public signal (for example, the time delay of cell measurement) )Impact.
  • the first system information may further include a second parameter set for indicating conditions for the adjustment of the second time window.
  • the processor may be configured to: determine whether the condition for adjusting the second time window is met based on the second parameter set; and if the condition for adjusting the second time window is met, If the condition is met, it is determined to adjust the second time window.
  • the second system information may further include a third parameter set for indicating conditions for the adjustment of the second time window.
  • the processor may be configured to: determine whether the condition for adjusting the second time window is met based on the third parameter set; and if the condition for adjusting the second time window is met, If the condition is met, it is determined to adjust the second time window.
  • the processor may be configured to: adjust The second time window. From this, you can Make sure to receive multiple sets of downlink public signals from adjacent cells.
  • the processor may be further configured to: in response to receiving the one or more sets of downlink public signals, the terminal device stops performing the communication of the second The reception of the downlink public signal of the network equipment. In this way, the overhead for receiving downlink common signals of adjacent cells can be saved, and communication efficiency can be improved.
  • the processor may be further configured to: the terminal device measures the multiple sets of received downlink common signals; and the terminal device performs cell reselection based on the measurement result.
  • efficient and correct cell selection can be realized.
  • the downlink common signal may include at least one of the following: a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel signal, or a demodulation reference signal for a physical broadcast channel.
  • a network device includes: at least one processor, and at least one memory storing computer program code, the at least one memory and the computer program code are configured to, together with the at least one processor, cause the network device to execute the The method described in one aspect or the second aspect.
  • a terminal device includes: at least one processor, and at least one memory storing computer program code, the at least one memory and the computer program code are configured to, together with the at least one processor, cause the terminal device to execute the The method described in the third aspect or the fourth aspect.
  • a computer-readable storage medium includes machine-executable instructions that, when executed by a device, cause the device to perform the method according to the first aspect or the second aspect.
  • a computer-readable storage medium includes machine-executable instructions that, when executed by a device, cause the device to perform the method according to the third aspect or the fourth aspect.
  • Figure 1 shows a schematic diagram of an example communication network in which embodiments of the present disclosure may be implemented
  • Figure 2A shows a schematic diagram of an example scenario of SSB beam coverage in a cell
  • FIG. 2B shows a schematic diagram of an example cell-level adjustment of the SSB cycle under the scenario of FIG. 2A;
  • Figure 2C shows a schematic diagram of example beam-level adjustments to the SSB period under the scenario of Figure 2A;
  • FIG. 2D shows a schematic diagram of another example beam-level adjustment of the SSB period under the scenario of FIG. 2A;
  • FIG. 3 shows a schematic diagram of an example communication process according to an embodiment of the present disclosure
  • Fig. 4 shows a schematic diagram of another exemplary communication process according to an embodiment of the present disclosure
  • FIG. 5 shows a flowchart of an example communication method implemented at a network device according to an embodiment of the present disclosure
  • FIG. 6 shows a flowchart of another example communication method implemented at a network device according to an embodiment of the present disclosure
  • Fig. 7 shows a flowchart of an example communication method implemented at a terminal device according to an embodiment of the present disclosure
  • Fig. 8 shows a flowchart of another example communication method implemented at a terminal device according to an embodiment of the present disclosure
  • Figure 9 shows a block diagram of an example network device according to an embodiment of the disclosure.
  • FIG. 10 shows a block diagram of another example network device according to an embodiment of the present disclosure.
  • Figure 11 shows a block diagram of an example terminal device according to an embodiment of the present disclosure
  • Figure 12 shows a block diagram of another example terminal device according to an embodiment of the present disclosure.
  • Figure 13 shows a simplified block diagram of a device suitable for implementing embodiments of the present disclosure.
  • the term “comprise” and its variants are inclusive, ie “including but not limited to”.
  • the term “based on” is “based at least in part on”.
  • the term “one embodiment” means “at least one embodiment”; the term “another embodiment” means “at least one further embodiment”. Relevant definitions of other terms will be given in the description below.
  • first and second may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of the embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed items.
  • circuitry means one or more of the following:
  • combinations of hardware circuitry and software such as (if applicable): (i) combinations of analog and/or digital hardware circuitry and software/firmware, and (ii) any portion of a hardware processor combined with software (including digital signal processors, software and memory that enable the device to perform various functions); and
  • a hardware circuit and/or processor such as a microprocessor or a portion thereof, that requires software (eg, firmware) to operate, but may be without software when not required to operate.
  • circuitry as used herein also covers an implementation of merely a hardware circuit or processor (or multiple processors), or a portion thereof, or its accompanying software or firmware.
  • circuitry also covers baseband integrated circuits or processor integrated circuits or similar integrated circuits in other computing devices, if applicable to a particular claim element.
  • terminal device refers to any device capable of wireless or wired communication.
  • terminal equipment include, but are limited to, customer premise equipment (CPE), user equipment (UE), personal computers, desktop computers, mobile phones, cellular phones, smart phones, personal digital assistants (personal digital assistants, PDA), portable computer, tablet, wearable device, Internet of things (IoT) device, machine type communication (machine type communication, MTC) device, for vehicle to everything (V2X) (X refers to pedestrian, vehicle or infrastructure/network) communication, or image capture devices such as digital cameras, gaming devices, music storage and playback devices, or Internet devices capable of wireless or wired Internet access and browsing, etc.
  • CPE customer premise equipment
  • UE user equipment
  • PDA personal digital assistants
  • portable computer tablet
  • wearable device Internet of things (IoT) device
  • machine type communication machine type communication
  • MTC machine type communication
  • V2X vehicle to everything
  • V2X vehicle to everything
  • network device refers to a device capable of providing or hosting a cell or coverage area within which end devices may communicate.
  • network equipment include, but are not limited to, Node B (Node B or NB), Evolved Node B (eNodeB or eNB), Next Generation Node B (gNB), Transmission Reception Point (TRP), Remote Radio Unit (remote radio unit (RRU), radio head (radio head, RH), remote radio head (remote radio head, RRH), low-power nodes such as femto nodes, pico nodes, and the like.
  • Node B Node B
  • eNodeB or eNB Evolved Node B
  • gNB Next Generation Node B
  • TRP Transmission Reception Point
  • RRU Remote Radio Unit
  • radio head radio head
  • RH remote radio head
  • RRH remote radio head
  • low-power nodes such as femto nodes, pico nodes, and the like.
  • the term "downstream common signal” refers to a signal broadcast by network equipment.
  • the downlink common signal may include a primary synchronization signal (primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS), a physical broadcast channel (physical broadcast channel, PBCH) signal or a demodulation reference signal (demodulation reference) for PBCH signal, DMRS).
  • PSS, SSS, PBCH and DMRS signals for PBCH can be packed into a single block, called SSB.
  • SSB single block
  • FIG. 1 shows a schematic diagram of an example communication network 100 in which embodiments of the present disclosure may be implemented.
  • a communication network 100 may include a network device 110 , a network device 120 and a terminal device 130 .
  • the network device 110 may provide a cell 111 and serve terminal devices in the cell 111 .
  • the network device 120 may provide a cell 121 and serve terminal devices in the cell 121 .
  • the terminal device 130 is located within the cell 111 and the network device 110 can serve the terminal device 130 .
  • the network device 110 may communicate with the terminal device 130 via a channel, such as a wireless communication channel.
  • network device 120 may also communicate with terminal device 130 via a channel, such as a wireless communication channel.
  • Communications in the communication network 100 may conform to any suitable standard, including but not limited to global system for mobile communication (GSM), long term evolution (LTE), LTE-evolution, LTE-advanced , LTE-A), wideband code division multiple access (WCDMA), code division multiple access (CDMA), GSM edge radio access network (GSM EDGE radio access network, GERAN), MTC, etc.
  • GSM global system for mobile communication
  • LTE long term evolution
  • LTE-evolution LTE-advanced
  • LTE-A LTE-A
  • WCDMA wideband code division multiple access
  • CDMA code division multiple access
  • GSM EDGE radio access network GSM edge radio access network
  • GERAN GSM edge radio access network
  • MTC etc.
  • communication may be performed according to any generation communication
  • Examples of communication protocols include, but are not limited to, first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation , 4G), 4.5G, fifth generation (fifth generation, 5G), sixth generation (sixth generation, 6G) communication protocols.
  • the communication network 100 may include any suitable number of network devices and/or terminal devices and/or cells suitable for implementing the present disclosure.
  • the communication network 100 may include more additional components not shown or some components shown may be omitted, which is not limited in this embodiment of the present disclosure.
  • the implementation of the communication network 100 is also not limited to the above specific examples, but may be implemented in any suitable manner.
  • network devices 110 and 120 may periodically broadcast the SSB. In one SSB period, multiple SSBs may be carried in beams in different directions for transmission.
  • FIG. 2A shows a schematic diagram 200A of an example scenario of intra-cell SSB beam coverage. For convenience, FIG. 2A is described in conjunction with the example of FIG. 1 .
  • the SSB from the network device 110 can be carried and transmitted in beams 1 to 8 in 8 different directions to cover the entire cell.
  • a plurality of terminal devices A, B, C, D access the cell 111 at positions close to the beams 2 and 3 .
  • FIG. 2B shows a schematic diagram 200B of an example cell-level adjustment of the SSB cycle under the scenario of FIG. 2A. As shown in Figure 2B, each SSB carried on beams 1 to 8 The period of will be adjusted similarly. If the load does not satisfy the SSB period extension condition, the period of each SSB carried on beams 1 to 8 will remain unchanged.
  • beam-level adjustments may be made to the SSB period.
  • the period of SSB carried on beams corresponding to positions with no or few terminal devices can be extended according to information such as load conditions and fine locations reported by terminal devices.
  • FIG. 2C shows a schematic diagram 200C of example beam-level adjustments to the SSB period under the scenario of FIG. 2A. As shown in FIG. 2C , the periods of SSBs carried on beams 1, 4, 5, 6, 7, and 8 can be extended, while the periods of SSBs on beams 2 and 3 remain unchanged.
  • FIG. 2D shows a schematic diagram 200D of another example beam-level adjustment of the SSB period under the scenario of FIG. 2A. As shown in FIG. 2D , based on the mobile information reported by terminal devices A and B, the period of the SSB carried on beam 1 can be shortened in advance.
  • the network device 110 may cover the entire cell by means of beam scanning. That is, the network device 110 may send SSB in one beam direction at a certain moment, and send SSB in different beam directions at multiple times, so as to cover the direction required by the entire cell.
  • a beam carrying SSB may be referred to as an SSB beam.
  • network device 110 may periodically transmit multiple SSBs in the time domain.
  • Each SSB within a cycle has a unique number, the SSB index.
  • Each SSB beam corresponds to an SSB index.
  • the SSBs in the cell are all configured with the same frequency domain position.
  • one SSB refers to one SSB resource block or one SSB beam corresponding to one SSB index.
  • terminal device 130 may receive SSBs from network devices 110 and 120 . In some embodiments, the terminal device 130 can continuously perform cell search and measurement based on the SSB, select an appropriate SSB beam, and implement initial access and mobility management.
  • the period of the SSB carried on some beams can be made shorter than the default search period, so that the terminal device can discover the cell.
  • terminal devices may also miss SSBs carried on other beams.
  • the embodiments of the present disclosure provide a communication solution for downlink common signal (such as SSB) transmission.
  • system information indicates different periods associated with multiple sets of downlink common signals.
  • the determination of different periods of the multiple sets of downlink common signals can be facilitated, and thus efficient reception of the multiple sets of downlink common signals can be realized.
  • a detailed description is given below in conjunction with FIG. 3 and FIG. 4 .
  • FIG. 3 shows a schematic diagram of an example communication process 300 according to an embodiment of the disclosure.
  • the process 300 may involve the network device 110 and the terminal device 130 . It should be understood that the process of FIG. 3 may include other additional steps not shown, or some steps shown may be omitted. The scope of the present disclosure is not limited thereto. Assume that terminal device 130 needs to access a cell.
  • the network device 110 generates 301 system information.
  • the system information may include a system information block (SIB).
  • SIB system information block
  • the system information may include SIB1, SIB3, SIB4 and so on.
  • the system information may include a master information block (MIB).
  • MIB master information block
  • the system information may also be in other suitable forms, which are not limited in this embodiment of the present disclosure.
  • the system information may include a first indication, which is used to indicate periods of multiple sets of downlink common signals from the current cell (ie, the network device 110 ). Periods of each set of downlink common signals in the multiple sets of downlink common signals are different. Each set of downlink common signals may include one or more downlink common signals. The downlink common signals in each set of downlink common signals have the same period.
  • the first indication may include an index set of the downlink common signal in each set of downlink common signals among the multiple sets of downlink common signals and a period corresponding to the index set. In some alternative embodiments, the first indication may only include a set of values for the period.
  • the following uses SSB as an example of a downlink common signal, and an example is described in conjunction with FIG. 2C .
  • the SSBs carried on beams 1, 4, 5, 6, 7, and 8 constitute a set of downlink common signals, and all have the same period, for example, 80 ms.
  • the downlink common signals carried on the beams 2 and 3 constitute another set of downlink common signals, and all have the same another period, for example, 20 ms.
  • the first indication may indicate the broadcast period of SSB beams with different indices in the current cell.
  • a field may be added in the SIB1 message to indicate that the broadcast period of SSB beams with indexes 1, 4, 5, 6, 7, and 8 is 80ms, and that the broadcast periods of SSB beams with indexes 2 and 3 are 20ms. It should be understood that the period can take any suitable value and is not limited to the examples here.
  • the system information may include a first set of parameters indicating conditions for adjustment of the first time window.
  • the first time window may be used by the terminal device to receive the downlink public signal from the current cell (ie, the network device 110 ) at the frequency points in the first frequency point set. In other words, the downlink public signals from the network device 110 may appear at these frequency points.
  • the terminal device may perform downlink public signal scanning at these frequency points within the first time window, so as to receive the downlink public signal from the network device 110 .
  • the first parameter set may include a reference signal receiving power (RSRP) threshold for extending the first time window.
  • the first parameter set may include a reference signal receiving quality (reference signal receiving quality, RSRQ) threshold for extending the first time window. It should be understood that any other suitable parameters are also possible.
  • the system information may include a second indication, which is used to indicate periods of multiple sets of downlink common signals from adjacent cells (such as the network device 120). Periods of each set of downlink common signals in the multiple sets of downlink common signals are different. Each set of downlink common signals may include one or more downlink common signals. The downlink common signals in each set of downlink common signals have the same period.
  • the second indication may include an index set of downlink common signals in each set of downlink common signals in the plurality of sets of downlink common signals and a period corresponding to the index set. In some alternative embodiments, the second indication may only include a set of values for the period.
  • the system information may include a second set of parameters indicating conditions for adjustment of the second time window.
  • the second time window may be used by the terminal device to receive downlink common signals from adjacent cells (for example, the network device 120 ) at frequency points in the second frequency point set. In other words, the downlink public signals from the network device 120 may appear at these frequency points.
  • the terminal device may scan the downlink public signals at these frequency points within the second time window, so as to receive the downlink public signal from the network device 120 .
  • the second set of parameters may include an RSRP threshold for extending the second time window. In some embodiments, the second set of parameters may include an RSRQ threshold for extending the second time window. It should be understood that any other suitable parameters are also possible.
  • the system information may include a first indication and a first set of parameters. In some embodiments, the system information may include a second indication and a second set of parameters. In some embodiments, the system information may include both the first indication and the second indication. In some embodiments, the system information may include a first indication, a first set of parameters, a second indication, and a second set of parameters. It should be understood that the embodiments of the present disclosure are not limited thereto. System information according to an embodiment of the present disclosure may include Any one or any combination of the first indication, the first parameter set, the second indication, and the second parameter set. In addition, the system information may also include any other suitable information, such as access information of the current cell.
  • the network device 110 broadcasts 302 the system information.
  • the terminal device 130 can receive the system information.
  • the terminal device 130 may stay at each frequency point where the SSB may exist in each frequency band for 20ms, and then switch to the next frequency point until the SSB signal is detected.
  • the terminal device 130 may obtain the location of the system information of the cell according to the detected SSB signal, so as to obtain the system information.
  • the system information includes a first indication.
  • the terminal device 130 may determine 303 periods of multiple sets of downlink common signals from the network device 110 based on the first indication. Through this period, the terminal device 130 can know that the period of the downlink public signal of the network device 110 has been adjusted at the beam level.
  • the terminal device 130 may perform 304 receiving the downlink public signal from the network device 110 at a frequency point in the first frequency point set by using the first time window. If a downlink public signal from the network device 110 is received at a frequency point in the first frequency point set (for convenience, also referred to herein as the first frequency point), the terminal device 130 may determine 305 whether to adjust the first frequency point. Time Window.
  • the system information may also include the first parameter set.
  • the terminal device 130 may determine whether the condition for adjusting the first time window is satisfied based on the first parameter set. If the condition for adjusting the first time window is met, the terminal device 130 may determine to adjust the first time window. For example, in the embodiment where the first parameter set includes the RSRP threshold, the terminal device 130 may measure the received downlink public signals on one or more SSB beams within 20ms to obtain the corresponding RSRP. If the received RSRP of the downlink common signal is lower than the RSRP threshold, the terminal device 130 may determine to adjust the first time window.
  • the terminal device 130 may determine not to adjust the first time window. In some embodiments, if the received RSRP of the downlink common signal is equal to the RSRP threshold, the terminal device 130 may determine to adjust the first time window. In some alternative embodiments, if the RSRP of the received downlink common signal is equal to the RSRP threshold, the terminal device 130 may not adjust the first time window. It should be understood that these are examples only, and the embodiments of the present disclosure are not limited thereto.
  • the terminal device 130 may determine not to Adjust the first time window. In some embodiments, if the received downlink public signal is not the downlink public signal required by the terminal device 130, for example, the measurement of the received downlink public signal cannot make the terminal device 130 meet the cell access condition, then the terminal device 130 may determine that Adjust the first time window to continue receiving the downlink common signal.
  • the terminal device 130 may determine whether to adjust the first time window based on the first indication. For example, the terminal device 130 may determine the index of the downlink common signal in the multiple groups of downlink common signals from the first indication. If one or more of the determined indices of the downlink common signals are included in the set of received indices of the downlink common signals, the terminal device 130 may determine not to adjust the first time window. If one or more of the determined indices of the downlink common signals is not included in the set of indices of the received downlink common signals, the terminal device 130 may determine to adjust the first time window. It should be understood that these are examples only, and it may also be determined by any other suitable manner whether to adjust the first time window.
  • the terminal device 130 may adjust (for example, extend) 306 the first time window based on the determined period, and use the adjusted first time window at the first frequency point Continue to receive 307 one or more sets of downlink common signals that have not been received among the multiple sets of downlink common signals. For example, the terminal device 130 may set the first time window for the first frequency point as the maximum value among periods of the multiple groups of downlink common signals. It should be understood that the embodiments of the present disclosure are not limited thereto, and the first time window may also be extended according to other period values, so as to ensure that a required downlink common signal among the multiple groups of downlink common signals is received.
  • the terminal device 130 may determine 308 whether one or more sets of downlink common signals that have not been received have been received after adjusting the first time window. If the one or more sets of downlink public signals are received, the terminal device 130 may stop 309 receiving the downlink public signals of the network device 110 at the first frequency point. Thereby, unnecessary downlink common signal receiving operation can be avoided.
  • the terminal device 130 may measure 310 the received downlink common signal, and perform 311 cell selection based on the measurement result. For example, the terminal device 130 may measure multiple sets of received downlink common signals. If the measurement result satisfies the predetermined condition, the cell 111 provided by the network device 110 may be selected. It should be understood that the cell selection may be implemented in any suitable manner, which is not limited in this embodiment of the present disclosure.
  • a cell can be discovered through an SSB beam with a period less than or equal to the default period, and a complete SSB beam can be obtained by extending the receiving time for cell measurement. Therefore, without significantly increasing the cell search delay, the impact of SSB beam cycle extension on cell selection is alleviated.
  • FIG. 4 shows a schematic diagram of another example communication process 400 according to an embodiment of the present disclosure.
  • the process 400 may involve network devices 110 , 120 and terminal devices 130 . It should be understood that the process of FIG. 4 may include other additional steps not shown, or some steps shown may be omitted. The scope of the present disclosure is not limited thereto. Assuming that the terminal device 130 is currently served by the network device 110, the network device 120 provides a neighboring cell.
  • the network device 110 generates 401 first system information, and broadcasts 402 the first system information.
  • the network device 120 generates 403 second system information, and broadcasts 404 the second system information.
  • any one of the first system information and the second system information may include a SIB, for example, SIB1, SIB3, SIB4, and so on.
  • either of the first system information and the second system information may include the MIB.
  • the system information may also be in other suitable forms, which are not limited in this embodiment of the present disclosure.
  • first system information and the second system information may be generated similarly to the system information described above in conjunction with FIG. 3 .
  • the first system information from the network device 110 may include a second indication, which is used to indicate periods of multiple sets of downlink common signals from neighboring cells (eg, the network device 120 ).
  • the second system information from the network device 120 may include a third indication, which is used to indicate periods of multiple groups of downlink common signals of the cell (that is, the network device 120 ).
  • the first system information from the network device 110 may further include a first indication, which is used to indicate periods of multiple groups of downlink common signals from the current cell (ie, the network device 110 ).
  • the first system information from the network device 110 may further include a second parameter set, which is used to indicate conditions for adjustment of a second time window, and the second time window is used to set The reception of the downlink public signal of the adjacent cell (that is, the network device 120 ) is performed at the frequency point in .
  • the first system information from the network device 110 may further include a first parameter set, which is used to indicate conditions for adjustment of a first time window, and the first time window is used to set Receive the downlink public signal of the cell (that is, the network device 110 ) at the frequency point in .
  • the second system information from the network device 120 may further include a third parameter set, which is used to indicate the conditions for adjustment of the second time window, and the second time window is used for the second set of frequency points Receive the downlink public signal of the cell (that is, the network device 120 ) at the frequency point in .
  • the second system information from the network device 120 may further include a fourth indication, which is used to indicate periods of multiple sets of downlink common signals from neighboring cells (eg, the network device 110 ).
  • the second system information from the network device 120 may also include a fourth parameter Set, used to indicate the condition for the adjustment of the third time window, the third time window is used to perform downlink common signal to the adjacent cell (for example, network device 110) at the frequency point in the first frequency point set reception.
  • the first system information and the second system information may also include any other suitable information, which is not limited in this public embodiment.
  • the terminal device 130 may receive the first system information and the second system information.
  • the first system information includes the second indication
  • the second system information includes the third indication.
  • the terminal device 130 may determine 405 periods of multiple sets of downlink common signals from neighboring cells (eg, the network device 120 ) based on at least one of the second indication and the third indication. Through this period, the terminal device 130 can know that the period of the downlink public signal of the network device 120 has been adjusted at the beam level.
  • the terminal device 130 may initialize 406 the second time window to the minimum value among periods of multiple sets of downlink common signals of the network device 120 based on the second indication in the first system information from the network device 110 .
  • the terminal device 130 may perform 407 receiving the downlink public signal from the network device 120 at a frequency point in the second frequency point set by using the initialized second time window.
  • the downlink public signal of the network device 120 may appear at a frequency point in the second frequency point set.
  • the terminal device 130 may determine 408 whether to adjust the second frequency point. Time Window.
  • the terminal device 130 may determine whether the condition for adjusting the second time window is satisfied based on the second parameter set. If the condition for adjusting the second time window is met, the terminal device 130 may determine to adjust the second time window. For example, in the embodiment where the second parameter set includes the RSRP threshold, the terminal device 130 may measure the received downlink public signals on one or more SSB beams within 20ms to obtain the corresponding RSRP. If the received RSRP of the downlink common signal is lower than the RSRP threshold, the terminal device 130 may determine to adjust the second time window. If the received RSRP of the downlink common signal is higher than the RSRP threshold, the terminal device 130 may determine not to adjust the second time window.
  • the terminal device 130 may determine to adjust the second time window. In some alternative embodiments, if the RSRP of the received downlink common signal is equal to the RSRP threshold, the terminal device 130 may not adjust the second time window. It should be understood that these are examples only, and the embodiments of the present disclosure are not limited thereto.
  • the terminal device 130 may also determine whether the condition for adjusting the second time window is satisfied based on the third parameter set. If the condition for adjusting the second time window is met, the terminal device 130 may determine to adjust the second time window. Whether to adjust the second time window may be determined based on the third parameter set similarly to the above-mentioned determination based on the second parameter set, which will not be repeated here.
  • the terminal device 130 may determine The second time window is not adjusted. In some embodiments, if the received downlink public signal is not the downlink public signal required by the terminal device 130, for example, the measurement of the received downlink public signal cannot make the terminal device 130 meet the cell re-access condition, then the terminal device 130 may It is determined to adjust the second time window to continue receiving downlink public signals of adjacent cells.
  • the terminal device 130 may determine whether to adjust the second time window based on the second indication. For example, the terminal device 130 may determine the index of the downlink common signal among the multiple sets of downlink common signals from the network device 120 from the second indication. If one or more of the determined indexes of the downlink common signals are included in the index set of the received downlink common signals, the terminal device 130 may determine not to adjust the second time window. If one or more of the determined indices of the downlink common signal is not included in the index set of the received downlink common signal, then The terminal device 130 may determine to adjust the second time window. It should be understood that these are only examples, and it may also be determined by any other suitable manner whether to adjust the second time window.
  • the terminal device 130 may adjust (for example, extend) 409 the second time window based on the determined period, and use the adjusted second time window at the second frequency point
  • the terminal device 130 may set the second time window for the second frequency point as the maximum value among periods of the multiple groups of downlink common signals. It should be understood that the embodiments of the present disclosure are not limited thereto, and the second time window may also be extended according to other period values, so as to ensure that the required downlink common signals among the multiple groups of downlink common signals are received.
  • the terminal device 130 may determine 411 whether it has received one or more sets of downlink public signals that have not been received after adjusting the first time window. If the one or more sets of downlink public signals are received, the terminal device 130 may stop 412 receiving the downlink public signals of the network device 110 at the second frequency point. Thereby, unnecessary downlink common signal receiving operation can be avoided.
  • the terminal device 130 may measure 413 the received downlink common signal, and perform 414 cell reselection based on the measurement result. For example, the terminal device 130 may measure multiple sets of received downlink public signals. If the measurement result satisfies the predetermined condition, the cell 121 provided by the network device 120 may be reselected. It should be understood that the cell reselection may be implemented in any suitable manner, which is not limited in this embodiment of the present disclosure.
  • neighbor cells can be discovered through SSB beams with a period less than or equal to the default period, and complete SSB beams can be obtained by extending the receiving time for neighbor cell measurement. Therefore, the impact of SSB beam cycle extension on cell reselection is mitigated without significantly increasing the neighbor cell search delay.
  • FIG. 5 shows a flowchart of an example communication method 500 implemented at a network device according to an embodiment of the disclosure.
  • the method 500 can be implemented at the network device 110 or 120 in FIG. 1 .
  • FIG. 5 will be described here with reference to the network device 110 in FIG. 1 . It should be understood that the method in FIG. 5 may include other additional steps not shown, or some steps shown may be omitted. The scope of the present disclosure is not limited thereto.
  • a first network device (eg, network device 110) generates system information.
  • the system information includes a first indication, and the first indication is used to indicate periods of multiple sets of downlink common signals from the current cell (ie, the network device 110 ). Periods of each set of downlink common signals in the multiple sets of downlink common signals are different. Thus, beam-level adjustment of the downlink common signal period of the current cell can be indicated.
  • the system information may also include a first parameter set for indicating conditions for adjustment of the first time window.
  • the first time window may be used by the terminal device to receive the downlink public signal from the current cell (ie, the network device 110 ) at the frequency points in the first frequency point set. In this way, the receiving time is adjusted, so that the required downlink common signal from the current cell can be ensured to be received.
  • the system information may further include a second indication, where the second indication is used to indicate periods of multiple sets of downlink common signals from neighboring cells (eg, network device 120 ). Periods of each set of downlink common signals in the multiple sets of downlink common signals are different. In this way, the beam-level adjustment of the downlink common signal period of the adjacent cell can be indicated.
  • the system information may also include a second parameter set, the second parameter set is used to indicate the Conditions for the adjustment of the second time window.
  • the second time window may be used by the terminal device to receive downlink public signals from adjacent cells (for example, the network device 120 ) at frequency points in the second frequency point set. In this way, the receiving time is adjusted so that the required downlink common signal from the adjacent cell can be ensured to be received.
  • the network device 110 broadcasts the system information.
  • different periods of multiple sets of downlink common signals of the local cell can be notified, so as to facilitate reception of the multiple sets of downlink common signals.
  • FIG. 6 shows a flowchart of another example communication method 600 implemented at a network device according to an embodiment of the present disclosure.
  • the method 600 can be implemented at the network device 110 or 120 in FIG. 1 .
  • FIG. 6 will be described here with reference to the network device 110 in FIG. 1 . It should be understood that the method in FIG. 6 may include other additional steps not shown, or some steps shown may be omitted. The scope of the present disclosure is not limited thereto.
  • a first network device (eg, network device 110) generates system information.
  • the system information includes a second indication, and the second indication is used to indicate periods of multiple sets of downlink common signals from adjacent cells (ie, the network device 120). Periods of each set of downlink common signals in the multiple sets of downlink common signals are different. In this way, the beam-level adjustment of the downlink common signal period of the adjacent cell can be indicated.
  • the system information may also include a second set of parameters for indicating conditions for adjustment of the second time window.
  • the second time window may be used by the terminal device to receive downlink public signals from adjacent cells (for example, the network device 120 ) at frequency points in the second frequency point set. In this way, the receiving time is adjusted so that the required downlink common signal from the adjacent cell can be ensured to be received.
  • the system information may further include a first indication, where the first indication is used to indicate periods of multiple sets of downlink common signals from the current cell (for example, the network device 110). Periods of each set of downlink common signals in the multiple sets of downlink common signals are different. Thus, beam-level adjustment of the downlink common signal period of the current cell can be indicated.
  • the system information may also include a first parameter set for indicating conditions for adjustment of the first time window.
  • the first time window may be used by the terminal device to receive the downlink public signal from the current cell (ie, the network device 110 ) at the frequency points in the first frequency point set. In this way, the receiving time is adjusted, so that the required downlink common signal from the current cell can be ensured to be received.
  • the network device 110 broadcasts the system information.
  • adjacent cells can be notified of different periods of multiple sets of downlink common signals, thereby facilitating reception of the multiple sets of downlink common signals.
  • FIG. 5 and FIG. 6 may be implemented individually or in any suitable combination. Embodiments of the present disclosure do not impose any limitation on this.
  • FIG. 7 shows a flowchart of an example communication method 700 implemented at a terminal device according to an embodiment of the present disclosure.
  • the method 700 can be implemented at the terminal device 130 in FIG. 1 .
  • FIG. 7 will be described here with reference to the terminal device 130 in FIG. 1 . It should be understood that the method in FIG. 7 may include other additional steps not shown, or some steps shown may be omitted. The scope of the present disclosure is not limited thereto.
  • the terminal device 130 receives system information from a first network device (eg, network device 110 ).
  • the system information includes a first indication, where the first indication is used to indicate periods of multiple sets of downlink common signals from the network device 110 . Periods of each set of downlink common signals in the multiple sets of downlink common signals are different.
  • the terminal device 130 determines periods of multiple sets of downlink common signals of the network device 110 based on the first indication. Thus, the terminal device 130 can know that the period of the downlink public signal of the network device has been adjusted at the beam level.
  • the terminal device 130 may use the first time window to perform the pairing at the frequency points in the first frequency point set. Reception of downlink common signals from network device 110 . If the downlink public signal from the network device 110 is received at the first frequency point in the first frequency point set, the terminal device 130 may determine whether to adjust the first time window.
  • the system information may further include a first parameter set for indicating conditions for adjustment of the first time window.
  • the terminal device 130 may determine whether the condition for adjusting the first time window is satisfied based on the first parameter set. If the condition for adjusting the first time window is met, the terminal device 130 determines to adjust the first time window.
  • the terminal device 130 may adjust the first time window based on the determined period. For example, the terminal device 130 may set the first time window for the first frequency point as the maximum value among periods of the multiple groups of downlink common signals. Thus, it can be ensured that all the downlink common signals in the multiple sets of downlink common signals are received. It should be understood that other suitable manners may also be used to adjust the first time window. In these embodiments, the terminal device 130 may use the adjusted first time window to receive one or more sets of unreceived downlink common signals among the multiple sets of downlink common signals at the first frequency point. Thus, by adjusting the first time window, it can be ensured that the required downlink common signals in the multiple groups of downlink common signals are received.
  • the terminal device 130 may stop receiving the downlink public signals of the network device 110 at the first frequency point. As a result, overhead for receiving downlink common signals is saved, and communication efficiency is improved.
  • the terminal device 130 may measure multiple sets of received downlink common signals, and perform cell selection based on the measurement results. Thus, efficient and accurate cell selection is realized.
  • the downlink common signal may include at least one of the following: PSS, SSS, PBCH signal or DMRS for PBCH.
  • the downlink common signal may include SSB.
  • different periods of multiple sets of downlink common signals of the local cell can be determined, thereby facilitating reception and effective utilization of the multiple sets of downlink common signals.
  • FIG. 8 shows a flowchart of another exemplary communication method 800 implemented at a terminal device according to an embodiment of the present disclosure.
  • the method 800 can be implemented at the terminal device 130 in FIG. 1 .
  • FIG. 8 will be described here with reference to the terminal device 130 in FIG. 1 . It should be understood that the method in FIG. 8 may include other additional steps not shown, or some steps shown may be omitted. The scope of the present disclosure is not limited thereto.
  • the terminal device 130 receives the first system information from the first network device (such as the network device 110) and the second system information from the second network device (such as the network device 120). at least one.
  • the first system information includes a second indication
  • the second system information includes a third indication
  • both the second indication and the third indication are used to indicate periods of multiple sets of downlink common signals from the network device 120 . Periods of each set of downlink common signals in the multiple sets of downlink common signals are different.
  • the terminal device 130 determines periods of multiple sets of downlink common signals of the network device 120 based on at least one of the second indication and the third indication. Thus, the terminal device 130 can know that the period of the downlink common signal of the adjacent cell has been adjusted at the beam level.
  • the terminal device 130 may initialize the second time window to a minimum value among periods of multiple groups of downlink common signals based on the second indication.
  • the second time window is used for receiving the downlink public signal of the network device 120 at the frequency points in the second frequency point set.
  • the terminal device 130 may use the initialized second time window to receive the downlink public signal from the network device 120 at the frequency points in the second frequency point set.
  • the terminal device 130 may determine whether to adjust the second time window.
  • the first system information may further include a second parameter set for indicating conditions for adjustment of the second time window.
  • the terminal device 130 may determine whether the condition for adjusting the second time window is satisfied based on the second parameter set. If the condition for adjusting the second time window is met, the terminal device 130 may determine to adjust the second time window. Thus, the reception of the downlink common signal of the neighboring cell can be adjusted based on the information from the own cell.
  • the second system information may further include a third parameter set for indicating conditions for adjustment of the second time window.
  • the terminal device 130 may determine whether the condition for adjusting the second time window is satisfied based on the third parameter set. If the condition for adjusting the second time window is met, the terminal device 130 may determine to adjust the second time window. Thus, the reception of the downlink common signal of the neighboring cell can be adjusted based on the information from the neighboring cell.
  • the terminal device 130 may adjust the second time window based on the determined period, and use the adjusted second time window to receive the unreceived group of downlink public signals at the second frequency point.
  • One or more sets of downlink common signals may be set.
  • the terminal device 130 may set the second time window for the second frequency point as the maximum value among periods among the multiple groups of downlink common signals. Therefore, by extending the second time window, it is possible to ensure that all the downlink common signals in the multiple groups of downlink common signals are received.
  • the terminal device 130 may stop receiving the downlink public signals of the network device 120 at the second frequency point. In this way, the overhead for receiving downlink common signals of adjacent cells can be saved.
  • the terminal device 130 may measure multiple sets of received downlink common signals, and perform cell reselection based on the measurement results. Thus, efficient and accurate cell reselection can be realized.
  • the downlink common signal may include at least one of the following: PSS, SSS, PBCH signal or DMRS for PBCH.
  • the downlink common signal may include SSB.
  • different periods of multiple sets of downlink common signals of adjacent cells can be determined, thereby facilitating reception and effective use of the multiple sets of downlink common signals.
  • FIG. 7 and FIG. 8 may be implemented individually or in any suitable combination. Embodiments of the present disclosure do not impose any limitation on this.
  • embodiments of the present disclosure also provide terminal devices and network devices that can implement these methods. This will be described below with reference to FIGS. 9 and 10 .
  • FIG. 9 shows a block diagram of an example network device 900 according to an embodiment of the disclosure. It should be understood that the block diagram of FIG. 9 is for purposes of illustration only and is not intended to be limiting. The device of Figure 9 may also include any other suitable additional components.
  • a network device 900 may include a processor 910 and a transmitter 920 .
  • the processor 910 may be configured to generate system information, the system information includes a first indication, the first indication is used to indicate periods of multiple sets of downlink common signals from the network device, the multiple sets of downlink Periods of each group of downlink common signals in the common signals are different.
  • the transmitter may be configured to broadcast the system information. In this way, the periods of multiple sets of downlink common signals of the current cell can be notified.
  • the system information may further include a first parameter set, the first parameter set is used to indicate conditions for adjustment of a first time window, and the first time window is used by the terminal device at the The frequency points in a set of frequency points receive the downlink public signal from the first network device.
  • the adjustment of the first time window can be facilitated.
  • FIG. 10 shows a block diagram of another example network device 1000 according to an embodiment of the present disclosure. It should be understood that the block diagram of FIG. 10 is for purposes of illustration only and is not intended to be limiting. The device of FIG. 10 may also include any other suitable additional components.
  • a network device 1000 may include a processor 1010 and a transmitter 1020 .
  • the processor 1010 may be configured to generate system information, the system information includes a second indication, the second indication is used to indicate periods of multiple sets of downlink common signals from another network device, the multiple sets of downlink Periods of each group of downlink common signals in the common signals are different.
  • the transmitter may be configured to broadcast the system information. In this way, adjacent cells can be notified of the periods of multiple sets of downlink common signals.
  • the system information may further include a second parameter set, the second parameter set is used to indicate conditions for adjustment of a second time window, and the second time window is used by the terminal device at the The frequency points in the two frequency point sets receive the downlink public signal of the second network device.
  • the adjustment of the second time window can be facilitated.
  • FIG. 11 shows a block diagram of an example terminal device 1100 according to an embodiment of the present disclosure. It should be understood that the block diagram of FIG. 11 is for purposes of illustration only and is not intended to be limiting. The device of Figure 11 may also include any other suitable additional components.
  • a terminal device 1100 may include a receiver 1110 and a processor 1120 .
  • the receiver 1110 may be configured to receive system information from a network device, where the system information includes a first indication, and the first indication is used to indicate periods of multiple sets of downlink common signals from the network device, so Periods of each set of downlink common signals in the plurality of sets of downlink common signals are different.
  • the processor 1120 may be configured to determine periods of multiple sets of downlink common signals of the network device based on the first indication. Thus, periods of multiple groups of downlink common signals of the current cell can be determined.
  • the processor 1120 may be further configured to: adjust the first time window based on the determined period, the first time window is used at the frequency point in the first frequency point set Receiving a downlink public signal from the first network device.
  • the receiver 1110 may also be configured to: use the adjusted first time window to receive at the first frequency point one of the multiple groups of downlink common signals that is not received by the terminal device. One or more sets of downlink common signals. In this way, the reception of downlink common signals of different periods from the current cell can be realized.
  • the processor 1120 may be configured to: adjust The first time window. In this way, multiple sets of downlink common signals from the current cell can be ensured to be received.
  • the processor 1120 may be configured to: stop the downlink to the first network device at the first frequency in response to receiving the one or more sets of downlink common signals Reception of Public Signals. Therefore, the overhead of receiving the downlink common signal can be saved, and the communication efficiency can be improved.
  • the processor 1120 may be configured to: measure the multiple sets of received downlink common signals; and perform cell selection based on the measurement results. Thus, efficient and accurate cell selection can be realized.
  • the receiver 1110 may also be configured to: use the first time window to perform a public downlink communication from the first network device at a frequency point in the first frequency point set signal reception.
  • the processor 1120 may also be configured to: in response to receiving a downlink public signal from the first network device at a first frequency point in the first frequency point set, the terminal device determines whether to adjust The first time window. Thus, it is only judged at the first frequency point where the first network device sends the downlink public signal whether to adjust the first time window, thereby improving the time delay applied to the downlink public signal (such as the time delay of cell measurement) of the adjustment of the first time window. )Impact.
  • the system information may further include a first parameter set for indicating conditions for the adjustment of the first time window.
  • the processor 1120 may be configured to: determine whether the condition for adjusting the first time window is met based on the first parameter set; and if the condition for adjusting the first time window is met, adjust the first time window If the condition is met, it is determined to adjust the first time window.
  • FIG. 12 shows a block diagram of an example terminal device 1200 according to an embodiment of the present disclosure. It should be understood that the block diagram of Figure 12 is only for purposes of illustration and not intended to be limiting. The device of Figure 12 may also include any other suitable additional components.
  • a terminal device 1200 may include a receiver 1210 and a processor 1220 .
  • the receiver 1210 may be configured to receive at least one of first system information from the first network device and second system information from the second network device, the first system information includes a second indication, the first The second system information includes a third indication, and both the second indication and the third indication are used to indicate periods of multiple sets of downlink common signals from the second network device, and each of the multiple sets of downlink common signals The periods of the downlink common signals are different.
  • the processor 1220 may be configured to determine periods of multiple sets of downlink common signals of the second network device based on at least one of the second indication and the third indication. Thus, periods of multiple groups of downlink common signals of adjacent cells can be determined.
  • the processor 1220 may be further configured to: based on the second indication, initialize the second time window to the minimum value among the cycles of the plurality of sets of downlink common signals, the second time window Used by the terminal device to receive the downlink public signal of the second network device at the frequency points in the second frequency point set.
  • the receiver 1210 may also be configured to: use the initialized second time window to perform reception of the downlink common signal from the second network device at a frequency point in the second frequency point set.
  • the processor 1220 may also be configured to: the terminal device adjusts a second time window based on the determined period, and the second time window is used by the terminal device in the second set of frequency points The reception of the downlink public signal of the second network device at the frequency point.
  • the receiver 1210 may also be configured to: use the adjusted second time window to receive at the second frequency point one or more groups of the multiple groups of downlink common signals that are not received by the terminal device. Multiple sets of downlink common signals. In this way, the reception of downlink common signals of different periods from adjacent cells can be realized.
  • the receiver 1210 may also be configured to: use the second time window to perform the downlink public signal from the second network device at a frequency point in the second frequency point set take over.
  • the processor 1220 may also be configured to: determine whether to adjust the second time window in response to receiving a downlink public signal from the second network device at a second frequency point in the second frequency point set . Therefore, it is only judged at the second frequency point where the second network device sends the downlink public signal whether to adjust the second time window, thereby improving the delay of the adjustment of the second time window to the application of the downlink public signal (for example, the time delay of cell measurement) )Impact.
  • the first system information may further include a second parameter set for indicating conditions for the adjustment of the second time window.
  • the processor 1220 may be configured to: determine whether the condition for adjusting the second time window is met based on the second parameter set; and if the condition for adjusting the second time window is met, If the above condition is met, it is determined to adjust the second time window.
  • the second system information may further include a third parameter set for indicating conditions for the adjustment of the second time window.
  • the processor 1220 may be configured to: determine whether the condition for adjusting the second time window is met based on the third parameter set; and if the condition for adjusting the second time window is met, If the above condition is met, it is determined to adjust the second time window.
  • the processor 1220 may be configured to: adjust the maximum value of the period of the plurality of sets of downlink common signals by setting the second time window for the second frequency point as the maximum value Describe the second time window. In this way, multiple sets of downlink common signals from adjacent cells can be received.
  • the processor 1220 may be further configured to: in response to receiving the one or more sets of downlink common signals, stop the downlink common signal to the second network device at the second frequency signal reception. In this way, the overhead for receiving downlink common signals of adjacent cells can be saved, and communication efficiency can be improved.
  • the processor 1220 may be further configured to: measure the multiple sets of received downlink common signals; and perform cell reselection based on the measurement results. Thus, efficient and accurate cell selection can be realized.
  • the downlink common signal may include at least one of the following: a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel signal, or a demodulation reference signal for a physical broadcast channel.
  • FIG. 13 is a simplified block diagram of an apparatus 1300 suitable for implementing embodiments of the present disclosure.
  • the device 1300 may be provided to implement a network device or a terminal device, such as any one of the network devices 110, 120 and the terminal device 130 shown in FIG. 1 .
  • device 1300 includes one or more processors 1310 , one or more memories 1320 coupled to processors 1310 , and one or more communication modules 1340 coupled to processors 1310 .
  • the communication module 1340 is used for two-way communication.
  • the communication module 1340 has a communication interface to facilitate communication.
  • a communication interface may represent any interface necessary to communicate with other network elements.
  • Processor 1310 may be of any type suitable for the local technical network, and may include, by way of limiting example, one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors, and multi-core processor-based architectures processor.
  • Device 1300 may have multiple processors, such as application specific integrated circuit chips, that are time slaved to a clock that is synchronized to a main processor.
  • Memory 1320 may include one or more non-volatile memories and one or more volatile memories.
  • non-volatile memory include, but are not limited to, read-only memory (ROM) 1324, electrically programmable read-only memory (EPROM), flash memory, hard disks, compact disks (CDs), digital video disks (DVDs), and other magnetic storage and/or or optical storage devices.
  • volatile memory include, but are not limited to, random access memory (RAM) 1322 and other volatile memory that does not persist for the duration of a power outage.
  • the computer program 1330 comprises computer-executable instructions executed by the associated processor 1310 .
  • the program 1330 can be stored in the ROM 1320.
  • Processor 1310 may perform any suitable actions and processes by loading program 1330 into RAM 1320.
  • Embodiments of the present disclosure may be implemented by means of a program 1330 such that the device 1300 performs the processes of the present disclosure as discussed with reference to FIGS. 3 to 8 .
  • the device 1300 may correspond to the network device 1100 or the terminal device 1200 described above, and the functional modules in the network device 1100 or the terminal device 1200 may be implemented by software of the device 1300 .
  • the functional modules included in the network device 1100 or the terminal device 1200 are generated after the processor 1310 of the device 1300 reads the program code stored in the memory 1320 .
  • Embodiments of the present disclosure can also be realized by hardware or by a combination of software and hardware.
  • program 1330 may be tangibly embodied on a computer-readable medium, which may be included in device 1300 (such as in memory 1320 ) or other storage device accessible by device 1300 .
  • Program 1330 may be loaded from a computer readable medium into RAM 1322 for execution.
  • the computer readable medium may include any type of tangible nonvolatile memory such as ROM, EPROM, flash memory, hard disk, CD, DVD, and the like.
  • the various example embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof. Certain aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor or other computing device.
  • aspects of the embodiments of the present disclosure are illustrated or described as block diagrams, flowcharts, or using some other graphical representation, it is to be understood that the blocks, devices, systems, techniques, or methods described herein may serve as non-limiting Examples are implemented in hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controllers or other computing devices, or some combination thereof.
  • FPGAs Field Programmable Gate Arrays
  • ASICs Application Specific Integrated Circuits
  • ASSPs Application Specific Standard Products
  • SOCs System on Chips
  • CPLD Complex Programmable Logic device
  • embodiments of the present disclosure may be described in the context of machine-executable instructions that Such as included in a program module executing in a device on a target's real or virtual processor.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data structures.
  • the functionality of the program modules may be combined or divided between the described program modules.
  • Machine-executable instructions for program modules may be executed locally or in distributed devices. In a distributed device, program modules may be located in both local and remote storage media.
  • Computer program codes for implementing the methods of the present disclosure may be written in one or more programming languages. These computer program codes can be provided to processors of general-purpose computers, special-purpose computers, or other programmable data processing devices, so that when the program codes are executed by the computer or other programmable data processing devices, The functions/operations specified in are implemented.
  • the program code may execute entirely on the computer, partly on the computer, as a stand-alone software package, partly on the computer and partly on a remote computer or entirely on the remote computer or server.
  • computer program code or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform the various processes and operations described above.
  • suitable carriers include signals, computer readable media, and the like.
  • Examples of signals may include electrical, optical, radio, sound, or other forms of propagated signals, such as carrier waves, infrared signals, and the like.
  • a machine-readable medium may be any tangible medium that contains or stores a program for or related to an instruction execution system, apparatus, or device.
  • a machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium.
  • a machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination thereof. More detailed examples of machine-readable storage media include electrical connections with one or more wires, portable computer disks, hard disks, random storage access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash), optical storage, magnetic storage, or any suitable combination thereof.

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Abstract

本申请涉及通信方法、网络设备和终端设备。该方法包括：第一网络设备生成系统信息，该系统信息包括第一指示，该第一指示用于指示来自第一网络设备的多组下行公共信号的周期，该多组下行公共信号中的每组下行公共信号的周期是不同的；以及第一网络设备广播系统信息。该方法还包括：终端设备接收来自第一网络设备的该系统信息；以及终端设备基于该第一指示来确定第一网络设备的多组下行公共信号的周期。由此，可以便于对不同周期的下行公共信号的接收。

Description

通信方法、网络设备和终端设备
相关申请的交叉引用
本申请要求申请日为2022年2月25日、申请号为202210175768.7、题为“通信方法、网络设备和终端设备”的中国发明专利申请的优先权。
技术领域
本申请涉及通信领域，更具体地涉及用于公共信号传输的通信方法、网络设备和终端设备。
背景技术
同步信号和物理广播信道块(synchronization signal and physical broadcast channel block，SSB)是新无线电(new radio，NR)通信系统中的重要的公共信号。SSB的周期可以在轻载或空载时被延长，以达到节能的目的。通常，在一个SSB的周期内有多个SSB被承载在不同方向的波束中进行发送。如果对SSB的周期进行小区级调整，即，承载在不同方向的波束上的SSB的周期保持相同，则当周期被调整为大于默认的20ms时会导致终端设备的接入失败。
终端设备也可能会错过承载在其它波束上的SSB。这可能不利于一些场景中的波束应用。例如，这可能会导致作出错误的小区信号质量估计，从而影响小区选择或重选的结果。如果直接加长终端设备的默认搜索周期，则会影响小区搜索的效率。
发明内容
本公开的实施例提供一种改进的通信方案，以克服上述以及其它潜在问题。
由上，考虑对SSB的周期进行波束级调整，即，承载在不同方向的波束上的SSB的周期可以不同。由此，可以实现对SSB的周期的更细粒度的调整，从而减少SSB开销并增加符号关断机会，实现节能效果。在对SSB的周期进行波束级调整的情况下，可以使得承载在部分波束上的SSB的周期小于默认搜索周期，从而终端设备可以发现小区。
根据本公开实施例的第一方面，提供一种通信方法。该方法包括：第一网络设备生成系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述第一网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及所述第一网络设备广播所述系统信息。由此，可以通知当前小区的多组下行公共信号的周期，以便于对不同周期的下行公共信号的接收。
在一些实施例中，该系统信息还可以包括第一参数集，所述第一参数集用于指示用于第一时间窗的调整的条件，所述第一时间窗被终端设备用于在第一频点集合中的频点处对来自所述第一网络设备的下行公共信号的接收。由此，可以便于实现对第一时间窗的调整。
根据本公开实施例的第二方面，提供一种通信方法。该方法包括：第一网络设备生成系统信息，所述系统信息包括第二指示，所述第二指示用于指示来自第二网络设备的多组下行公共信号的不同周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及所述第一网络设备广播所述系统信息。由此，可以通知来自相邻小区的多组下行公共信号的 周期，以便于对来自相邻小区的不同周期的下行公共信号的接收。
在一些实施例中，该系统信息还可以包括第二参数集，所述第二参数集用于指示用于第二时间窗的调整的条件，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收。由此，可以便于实现对第二时间窗的调整。
根据本公开实施例的第三方面，提供一种通信方法。该方法包括：终端设备接收来自第一网络设备的系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述第一网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及所述终端设备基于所述第一指示来确定所述第一网络设备的多组下行公共信号的周期。由此，可以确定当前小区的多组下行公共信号的周期，以便于对不同周期的下行公共信号的接收。
在一些实施例中，该方法还可以包括：所述终端设备基于所确定的周期来调整第一时间窗，所述第一时间窗被用于在第一频点集合中的频点处对来自所述第一网络设备的下行公共信号的接收；以及所述终端设备采用调整后的所述第一时间窗在所述第一频点处接收所述多组下行公共信号中的未被所述终端设备接收到的一组或多组下行公共信号。由此，可以实现对来自当前小区的不同周期的下行公共信号的接收。
在一些实施例中，所述终端设备可以通过将针对所述第一频点的所述第一时间窗设置为所述多组下行公共信号的周期中的最大值来调整所述第一时间窗。由此，可以确保接收到来自当前小区的多组下行公共信号。
在一些实施例中，该方法还可以包括：响应于接收到所述一组或多组下行公共信号，所述终端设备停止在所述第一频点处对所述第一网络设备的下行公共信号的接收。由此，可以节省下行公共信号接收的开销，并提高通信效率。
在一些实施例中，该方法还可以包括：所述终端设备测量接收到的所述多组下行公共信号；以及所述终端设备基于所述测量的结果来执行小区选择。由此，可以实现高效正确的小区选择。
在一些实施例中，该方法还可以包括：所述终端设备采用所述第一时间窗在所述第一频点集合中的频点处执行对来自所述第一网络设备的下行公共信号的接收；以及响应于在所述第一频点集合中的第一频点处接收到来自所述第一网络设备的下行公共信号，所述终端设备确定是否调整所述第一时间窗。由此，仅在第一网络设备发送下行公共信号的第一频点处判断是否调整第一时间窗，从而改善第一时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，该系统信息还可以包括第一参数集，所述第一参数集用于指示用于所述第一时间窗的所述调整的条件。在这些实施例中，所述终端设备可以基于所述第一参数集，确定是否满足调整所述第一时间窗的所述条件；以及如果满足调整所述第一时间窗的所述条件，则确定调整所述第一时间窗。由此，可以进一步改善第一时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
根据本公开实施例的第四方面，提供一种通信方法。该方法包括：终端设备接收来自第一网络设备的第一系统信息和来自第二网络设备的第二系统信息中的至少一项，所述第一系统信息包括第二指示，所述第二系统信息包括第三指示，所述第二指示和所述第三指示都用于指示来自所述第二网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及所述终端设备基于所述第二指示和所述第三指示中的至 少一项来确定所述第二网络设备的多组下行公共信号的周期。由此可以确定来自相邻小区的多组下行公共信号的周期，以便于对来自相邻小区的不同周期的下行公共信号的接收。
在一些实施例中，该方法还可以包括：所述终端设备基于所述第二指示，将第二时间窗初始化为所述多组下行公共信号的周期中的最小值，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收；以及所述终端设备采用经初始化的所述第二时间窗，在所述第二频点集合中的频点处执行对来自所述第二网络设备的下行公共信号的接收。由此，可以实现对第二频点集合中相邻小区发送下行公共信号的频点的快速搜索。
在一些实施例中，该方法还可以包括：所述终端设备基于所确定的周期来调整第二时间窗，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收；以及所述终端设备采用调整后的所述第二时间窗在所述第二频点处接收所述多组下行公共信号中的未被所述终端设备接收到的一组或多组下行公共信号。由此，可以实现对来自相邻小区的不同周期的下行公共信号的接收。
在一些实施例中，所述终端设备采用所述第二时间窗在所述第二频点集合中的频点处执行对来自所述第二网络设备的下行公共信号的接收；以及响应于在所述第二频点集合中的第二频点处接收到来自所述第二网络设备的下行公共信号，所述终端设备确定是否调整所述第二时间窗。由此，仅在第二网络设备发送下行公共信号的第二频点处判断是否调整第二时间窗，从而改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，第一系统信息还可以包括第二参数集，所述第二参数集用于指示用于所述第二时间窗的所述调整的条件。在这些实施例中，所述终端设备可以基于所述第二参数集，确定是否满足调整所述第二时间窗的所述条件；以及如果满足调整所述第二时间窗的所述条件，则确定调整所述第二时间窗。由此，可以进一步改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，第二系统信息还可以包括第三参数集，所述第三参数集用于指示用于所述第二时间窗的所述调整的条件。在这些实施例中，所述终端设备可以基于所述第三参数集，确定是否满足调整所述第二时间窗的所述条件；以及如果满足调整所述第二时间窗的所述条件，则确定调整所述第二时间窗。由此，可以进一步改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，所述终端设备可以通过将针对所述第二频点的所述第二时间窗设置为所述多组下行公共信号中的周期中的最大值来调整所述第二时间窗。由此，可以确保接收到来自相邻小区的多组下行公共信号。
在一些实施例中，该方法还可以包括：响应于接收到所述一组或多组下行公共信号，所述终端设备停止在所述第二频点处对所述第二网络设备的下行公共信号的接收。由此，可以节省用于相邻小区的下行公共信号接收的开销，并提高通信效率。
在一些实施例中，该方法还可以包括：所述终端设备测量接收到的所述多组下行公共信号；以及所述终端设备基于所述测量的结果来执行小区重选。由此，可以实现高效正确的小区选择。
在一些实施例中，下行公共信号可以包括以下中的至少一项：主同步信号、辅同步信号、物理广播信道信号或用于物理广播信道的解调参考信号。
根据本公开实施例的第五方面，提供一种网络设备。该网络设备包括：处理器，被配置 用于生成系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及发射器，被配置用于广播所述系统信息。由此，可以通知当前小区的多组下行公共信号的周期。
在一些实施例中，该系统信息还可以包括第一参数集，所述第一参数集用于指示用于第一时间窗的调整的条件，所述第一时间窗被终端设备用于在第一频点集合中的频点处对来自所述第一网络设备的下行公共信号的接收。由此，可以便于实现对第一时间窗的调整。
根据本公开实施例的第六方面，提供一种网络设备。该网络设备包括：处理器，被配置用于生成系统信息，所述系统信息包括第二指示，所述第二指示用于指示来自另一网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及发射器，被配置用于广播所述系统信息。由此，可以通知相邻小区的多组下行公共信号的周期。
在一些实施例中，该系统信息还可以包括第二参数集，所述第二参数集用于指示用于第二时间窗的调整的条件，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收。由此，可以便于实现对第二时间窗的调整。
根据本公开实施例的第七方面，提供一种终端设备。该终端设备包括：接收器，被配置用于接收来自网络设备的系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及处理器，被配置用于基于所述第一指示来确定所述网络设备的多组下行公共信号的周期。由此，可以确定当前小区的多组下行公共信号的周期。
在一些实施例中，所述处理器还可以被配置用于：基于所确定的周期来调整第一时间窗，所述第一时间窗被用于在第一频点集合中的频点处对来自所述第一网络设备的下行公共信号的接收。所述接收器还可以被配置用于：采用调整后的所述第一时间窗在所述第一频点处接收所述多组下行公共信号中的未被所述终端设备接收到的一组或多组下行公共信号。由此，可以实现对来自当前小区的不同周期的下行公共信号的接收。
在一些实施例中，所述处理器可以被配置用于：通过将针对所述第一频点的所述第一时间窗设置为所述多组下行公共信号的周期中的最大值来调整所述第一时间窗。由此，可以确保接收到来自当前小区的多组下行公共信号。
在一些实施例中，所述处理器可以被配置用于：响应于接收到所述一组或多组下行公共信号，停止在所述第一频点处对所述第一网络设备的下行公共信号的接收。由此，可以节省下行公共信号接收的开销，并提高通信效率。
在一些实施例中，所述处理器可以被配置用于：测量接收到的所述多组下行公共信号；以及基于所述测量的结果来执行小区选择。由此，可以实现高效正确的小区选择。
在一些实施例中，所述接收器还可以被配置用于：采用所述第一时间窗在所述第一频点集合中的频点处执行对来自所述第一网络设备的下行公共信号的接收。所述处理器还可以被配置用于：响应于在所述第一频点集合中的第一频点处接收到来自所述第一网络设备的下行公共信号，所述终端设备确定是否调整所述第一时间窗。由此，仅在第一网络设备发送下行公共信号的第一频点处判断是否调整第一时间窗，从而改善第一时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，该系统信息还可以包括第一参数集，所述第一参数集用于指示用于所 述第一时间窗的所述调整的条件。在这些实施例中，所述处理器可以被配置用于：基于所述第一参数集，确定是否满足调整所述第一时间窗的所述条件；以及如果满足调整所述第一时间窗的所述条件，则确定调整所述第一时间窗。由此，可以进一步改善改善第一时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
根据本公开实施例的第八方面，提供一种终端设备。该终端设备包括：接收器，被配置用于接收来自第一网络设备的第一系统信息和来自第二网络设备的第二系统信息中的至少一项，所述第一系统信息包括第二指示，所述第二系统信息包括第三指示，所述第二指示和所述第三指示都用于指示来自所述第二网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及处理器，被配置用于基于所述第二指示和所述第三指示中的至少一项来确定所述第二网络设备的多组下行公共信号的周期。由此，可以确定相邻小区的多组下行公共信号的周期。
在一些实施例中，所述处理器还可以被配置用于：所述终端设备基于所述第二指示，将第二时间窗初始化为所述多组下行公共信号的周期中的最小值，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收。所述接收器还可以被配置用于：采用经初始化的所述第二时间窗，在所述第二频点集合中的频点处执行对来自所述第二网络设备的下行公共信号的接收。由此，可以实现对相邻小区的不同周期的下行公共信号的有效接收。
在一些实施例中，所述处理器还可以被配置用于：所述终端设备基于所确定的周期来调整第二时间窗，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收。所述接收器还可以被配置用于：采用调整后的所述第二时间窗在所述第二频点处接收所述多组下行公共信号中的未被所述终端设备接收到的一组或多组下行公共信号。由此，可以实现对来自相邻小区的不同周期的下行公共信号的接收。
在一些实施例中，所述接收器还可以被配置用于：采用所述第二时间窗在所述第二频点集合中的频点处执行对来自所述第二网络设备的下行公共信号的接收。所述处理器还可以被配置用于：响应于在所述第二频点集合中的第二频点处接收到来自所述第二网络设备的下行公共信号，确定是否调整所述第二时间窗。由此，仅在第二网络设备发送下行公共信号的第二频点处判断是否调整第二时间窗，从而改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，第一系统信息还可以包括第二参数集，所述第二参数集用于指示用于所述第二时间窗的所述调整的条件。在这些实施例中，所述处理器可以被配置用于：基于所述第二参数集，确定是否满足调整所述第二时间窗的所述条件；以及如果满足调整所述第二时间窗的所述条件，则确定调整所述第二时间窗。由此，可以进一步改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，第二系统信息还可以包括第三参数集，所述第三参数集用于指示用于所述第二时间窗的所述调整的条件。在这些实施例中，所述处理器可以被配置用于：基于所述第三参数集，确定是否满足调整所述第二时间窗的所述条件；以及如果满足调整所述第二时间窗的所述条件，则确定调整所述第二时间窗。由此，可以进一步改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，所述处理器可以被配置用于：通过将针对所述第二频点的所述第二时间窗设置为所述多组下行公共信号中的周期中的最大值来调整所述第二时间窗。由此，可以 确保接收到来自相邻小区的多组下行公共信号。
在一些实施例中，所述处理器还可以被配置用于：响应于接收到所述一组或多组下行公共信号，所述终端设备停止在所述第二频点处对所述第二网络设备的下行公共信号的接收。由此，可以节省用于相邻小区的下行公共信号接收的开销，并提高通信效率。
在一些实施例中，所述处理器还可以被配置用于：所述终端设备测量接收到的所述多组下行公共信号；以及所述终端设备基于所述测量的结果来执行小区重选。由此，可以实现高效正确的小区选择。
在一些实施例中，下行公共信号可以包括以下中的至少一项：主同步信号、辅同步信号、物理广播信道信号或用于物理广播信道的解调参考信号。
根据本公开实施例的第九方面，提供一种网络设备。该网络设备包括：至少一个处理器，以及存储计算机程序代码的至少一个存储器，所述至少一个存储器和所述计算机程序代码被配置为与所述至少一个处理器一起促使所述网络设备执行根据第一方面或第二方面所述的方法。
根据本公开实施例的第十方面，提供一种终端设备。该终端设备包括：至少一个处理器，以及存储计算机程序代码的至少一个存储器，所述至少一个存储器和所述计算机程序代码被配置为与所述至少一个处理器一起促使所述终端设备执行根据第三方面或第四方面所述的方法。
根据本公开实施例的第十一方面，提供一种计算机可读存储介质。该计算机可读存储介质包括机器可执行指令，所述机器可执行指令在由设备执行时促使该设备执行根据第一方面或第二方面所述的方法。
根据本公开实施例的第十二方面，提供一种计算机可读存储介质。该计算机可读存储介质包括机器可执行指令，所述机器可执行指令在由设备执行时促使该设备执行根据第三方面或第四方面所述的方法。
通过下文对示例实施例的描述将会理解，根据在此提出的技术方案，可以便于在某个频点处接收到具有不同周期的多组下行公共信号。由此，可以便于对下行公共信号的有效应用，诸如小区选择或小区重选。
应当理解，发明内容部分中所描述的内容并非旨在限定本公开实施例的关键或重要特征，亦非用于限制本公开的范围。本公开的其它特征将通过以下的描述变得容易理解。
附图说明
结合附图并参考以下详细说明，本公开各实施例的上述和其他特征、优点及方面将变得更加明显。在附图中，相同或相似的附图标记表示相同或相似的元素，其中：
图1示出了本公开实施例可在其中实施的示例通信网络的示意图；
图2A示出了小区内SSB波束覆盖的示例场景的示意图；
图2B示出了在图2A的场景下对SSB周期的示例小区级调整的示意图；
图2C示出了在图2A的场景下对SSB周期的示例波束级调整的示意图；
图2D示出了在图2A的场景下对SSB周期的另一示例波束级调整的示意图；
图3示出了根据本公开实施例的示例通信过程的示意图；
图4示出了根据本公开实施例的另一示例通信过程的示意图；
图5示出了根据本公开实施例的网络设备处实施的示例通信方法的流程图；
图6示出了根据本公开实施例的网络设备处实施的另一示例通信方法的流程图；
图7示出了根据本公开实施例的终端设备处实施的示例通信方法的流程图；
图8示出了根据本公开实施例的终端设备处实施的另一示例通信方法的流程图；
图9示出了根据本公开实施例的示例网络设备的框图；
图10示出了根据本公开实施例的另一示例网络设备的框图；
图11示出了根据本公开实施例的示例终端设备的框图；
图12示出了根据本公开实施例的另一示例终端设备的框图；以及
图13示出了适合于实现本公开实施例的设备的简化框图。
具体实施方式
下面将参照附图更详细地描述本公开的实施例。虽然附图中示出了本公开的一些实施例，然而应当理解的是，本公开可以通过各种形式来实现，而且不应该被解释为限于这里阐述的实施例，相反提供这些实施例是为了更加透彻和完整地理解本公开。应当理解的是，本公开的附图及实施例仅用于示例性作用，并非用于限制本公开的保护范围。
在此使用的术语“包括”及其变形是开放性包括，即“包括但不限于”。术语“基于”是“至少部分地基于”。术语“一个实施例”表示“至少一个实施例”；术语“另一实施例”表示“至少一个另外的实施例”。其他术语的相关定义将在下文描述中给出。
应理解，尽管本文可以使用术语“第一”和“第二”等来描述各种元件，但这些元件不应受到这些术语的限制。这些术语仅用于区分一个元件和另一个元件。例如，第一元件可以称为第二元件，同样，第二元件可以称为第一元件，而不脱离实施例的范围。如本文所用，术语“和/或”包括一个或多个所列术语的任何和所有组合。
在此使用的术语“电路”是指以下的一项或多项：
(a)仅硬件电路实现方式(诸如仅模拟和/或数字电路的实现方式)；以及
(b)硬件电路和软件的组合，诸如(如果适用)：(i)模拟和/或数字硬件电路与软件/固件的组合，以及(ii)硬件处理器的任意部分与软件(包括一起工作以使得装置执行各种功能的数字信号处理器、软件和存储器)；以及
(c)硬件电路和/或处理器，诸如微处理器或者微处理器的一部分，其要求软件(例如固件)用于操作，但是在不需要软件用于操作时可以没有软件。
电路的定义适用于此术语在本申请中(包括任意权利要求中)的所有使用场景。作为另一示例，在此使用的术语“电路”也覆盖仅硬件电路或处理器(或多个处理器)、或者硬件电路或处理器的一部分、或者其随附软件或固件的实现方式。例如，如果适用于特定权利要求元素，术语“电路”还覆盖基带集成电路或处理器集成电路或其他计算设备中的类似的集成电路。
如本文所用，术语“终端设备”是指任意具有无线或有线通信能力的设备。终端设备的示例包括但限于客户终端设备(customer premise equipment,CPE)、用户设备(user equipment,UE)、个人计算机、台式计算机、移动电话、蜂窝电话、智能电话、个人数字助理(personal digital assistant,PDA)、便携式计算机、平板、可穿戴设备、物联网(Internet of things,IoT)设备、机器类型通信(machine type communication,MTC)设备、用于车联网(vehicle to everything,V2X)(X是指行人、车辆或基础设施/网络)通信的车载设备、或者诸如数字相机之类的图像捕获设备、游戏设备、音乐存储和回放设备或能够进行无线或有线因特网访问和浏览的因特网设备等等。
此外，术语“网络设备”是指能够提供或托管终端设备可以在其中通信的小区或覆盖范围的设备。网络设备的示例包括但不限于节点B(节点B或NB)、演进节点B(eNodeB或eNB)、下一代节点B(gNB)、发送接收点(transmission reception point,TRP)、远程无线电单元(remote radio unit,RRU)、无线电头(radio head,RH)、远程无线电头(remote radio head,RRH)、诸如毫微微节点、微微节点等的低功率节点。
在本公开的上下文中，术语“下行公共信号”是指由网络设备广播的信号。下行公共信号可以包括主同步信号(primary synchronization signal,PSS)、辅同步信号(secondary synchronization signal,SSS)、物理广播信道(physical broadcast channel,PBCH)信号或用于PBCH的解调参考信号(demodulation reference signal,DMRS)。PSS、SSS、PBCH和用于PBCH的DMRS信号可以被打包为单个块，称为SSB。为了方便起见，下面以SSB作为下行公共信号的示例来描述本公开实施例。然而，应理解到，本公开实施例适用于现有或将来开发的任意合适的下行公共信号的传输，而不限于SSB的传输。
应用环境的示例性实现
图1示出了本公开实施例可在其中实施的示例通信网络100的示意图。如图1所示，通信网络100可以包括网络设备110、网络设备120和终端设备130。网络设备110可以提供小区111并服务于小区111内的终端设备。网络设备120可以提供小区121并服务于小区121内的终端设备。在本例中，终端设备130位于小区111内，并且网络设备110可以服务于终端设备130。
网络设备110可以经由诸如无线通信信道之类的信道与终端设备130通信。类似地，网络设备120也可以经由诸如无线通信信道之类的信道与终端设备130通信。通信网络100中的通信可以符合任何合适的标准，包括但不限于全球移动通信系统(global system for mobile communication,GSM)、长期演进(long term evolution,LTE)、LTE演进、LTE高级(LTE-advanced,LTE-A)、宽带码分多址(wideband code division multiple access,WCDMA)、码分多址(code division multiple access,CDMA)、GSM边缘无线电接入网(GSM EDGE radio access network,GERAN)、MTC等。此外，可以根据当前已知或将来要开发的任何一代通信协议来执行通信。通信协议的示例包括但不限于第一代(first generation,1G)、第二代(second generation,2G)、2.5G、2.75G、第三代(third generation,3G)、第四代(fourth generation,4G)、4.5G、第五代(fifth generation,5G)、第六代(sixth generation,6G)通信协议。
应当理解，图1中的设备和小区的数量是出于说明的目的而给出的，并不暗示对本公开的任何限制。通信网络100可以包括适合于实现本公开的任何合适数量的网络设备和/或终端设备和/或小区。此外，通信网络100可以包括更多未示出的附加组件或者可以省略所示出的某些组件，本公开实施例对此并不作限制。通信网络100的实施也不限于上述具体示例，而是可以以任意合适的方式实施。
在一些实施例中，网络设备110和120可以周期性地广播SSB。在一个SSB周期内，可以有多个SSB被承载在不同方向的波束中进行发送。图2A示出了小区内SSB波束覆盖的示例场景的示意图200A。为方便起见，结合图1的示例来描述图2A。如图2A所示，在小区111内，来自网络设备110的SSB可以被承载在8个不同方向的波束1至8中发送以覆盖整个小区。在本例中，在靠近波束2和3的位置处有多个终端设备A、B、C、D接入该小区111。
在一些实施例中，可以对SSB周期进行小区级调整。图2B示出了在图2A的场景下对SSB周期的示例小区级调整的示意图200B。如图2B所示，被承载在波束1至8上的各个SSB 的周期将被相同地调整。如果负载不满足SSB周期延长条件，被承载在波束1至8上的各个SSB的周期将保持不变。
在一些实施例中，可以对SSB周期进行波束级调整。例如，在波束级调整中，可以根据负载情况、终端设备上报的精细位置等信息，延长与没有终端设备或终端设备较少的位置对应的波束上承载的SSB的周期。图2C示出了在图2A的场景下对SSB周期的示例波束级调整的示意图200C。如图2C所示，可以将承载在波束1、4、5、6、7、8上的SSB的周期延长，而波束2、3上的SSB的周期保持不变。
作为另一示例，在波束级调整中，可以根据负载情况、终端设备上报的精细位置以及移动状态等信息，预先调整部分波束上承载的SSB的周期。图2D示出了在图2A的场景下对SSB周期的另一示例波束级调整的示意图200D。如图2D所示，基于终端设备A和B上报的移动信息，可以提前缩短波束1上承载的SSB的周期。
通过采用SSB周期波束级调整，可以实现SSB周期更细粒度的调整，减少SSB开销，进一步增加符号关断机会，实现节能效果。
在一些实施例中，网络设备110可以通过波束扫描的方法来覆盖整个小区。即，在某一个时刻网络设备110可以发送一个波束方向上的SSB，并且通过多个时刻发送不同的波束方向上的SSB，从而覆盖整个小区所需要的方向。
承载SSB的波束可以称为SSB波束。通过多个时刻发送不同方向的SSB波束覆盖整个小区所需要的方向，该过程称为SSB波束扫描。例如，网络设备110可以在时域上周期性发送多个SSB。一个周期内的每个SSB都有一个唯一的编号，即SSB索引。每个SSB波束对应一个SSB索引。在频域上，小区内的SSB均被配置有相同的频域位置。通常，一个SSB是指一个SSB索引对应的一个SSB资源块或一个SSB波束。
在一些实施例中，终端设备130可以接收来自网络设备110和120的SSB。在一些实施例中，终端设备130可以持续地基于SSB进行小区搜索和测量，选择合适的SSB波束，实现初始接入和移动性管理。
在对SSB的周期进行波束级调整的情况下，可以使得承载在部分波束上的SSB的周期小于默认搜索周期，从而终端设备可以发现小区。然而，终端设备也可能会错过承载在其它波束上的SSB。
鉴于此，本公开的实施例提供了用于下行公共信号(例如SSB)传输的通信方案。在该方案中，通过系统信息指示与多组下行公共信号相关联的不同周期。以此方式，可以便于该多组下行公共信号的不同周期的确定，进而可以实现多组下行公共信号的高效接收。为便于理解，下面结合图3和图4进行详细描述。
通信过程的示例性实现
图3示出了根据本公开实施例的示例通信过程300的示意图。为方便起见，这里将结合图1和图2C的示例对图3进行说明。该过程300可以涉及网络设备110和终端设备130。应理解到，图3的过程可以包括其它未示出的附加步骤，或者可以省略示出的一些步骤。本公开的范围并不受限于此。假设终端设备130需要接入小区。
如图3所示，网络设备110生成301系统信息。在一些实施例中，系统信息可以包括系统信息块(system information block,SIB)。例如，系统信息可以包括SIB1、SIB3、SIB4等。在一些实施例中，系统信息可以包括主信息块(master information block,MIB)。当然，系统信息也可以采用其它合适形式，本公开实施例对此不进行限制。
在一些实施例中，该系统信息可以包括第一指示，用于指示来自本小区(即，网络设备110)的多组下行公共信号的周期。该多组下行公共信号中的每组下行公共信号的周期是不同的。每组下行公共信号可以包括一个或多个下行公共信号。每组下行公共信号中的下行公共信号具有相同的周期。在一些实施例中，第一指示可以包括多组下行公共信号中的每组下行公共信号中的下行公共信号的索引集合以及与该索引集合对应的周期。在一些备选实施例中，第一指示可以仅包括周期的值的集合。
下面以SSB作为下行公共信号的示例，结合图2C描述一个示例。如图2C所示，波束1、4、5、6、7、8上承载的SSB构成一组下行公共信号，并且都具有相同周期，例如80ms。波束2、3上承载的下行公共信号构成另一组下行公共信号，并且都具有相同的另一周期，例如20ms。在这种情况下，例如，第一指示可以指示本小区不同索引的SSB波束的广播周期。例如，可以在SIB1消息中添加字段来指示索引为1、4、5、6、7、8的SSB波束的广播周期为80ms，以及索引为2、3的SSB波束的广播周期为20ms。应理解到，周期可以取任意合适值，而不限于这里的示例。
在一些实施例中，该系统信息可以包括第一参数集，用于指示用于第一时间窗的调整的条件。第一时间窗可以被终端设备用于在第一频点集合中的频点处对来自本小区(即，网络设备110)的下行公共信号的接收。换言之，来自网络设备110的下行公共信号可能出现在这些频点处。终端设备可以在第一时间窗内在这些频点执行下行公共信号的扫描，以接收来自网络设备110的下行公共信号。
在一些实施例中，该第一参数集可以包括用于延长第一时间窗的参考信号接收功率(reference signal receiving power,RSRP)阈值。在一些实施例中，该第一参数集可以包括用于延长第一时间窗的参考信号接收质量(reference signal receiving quality,RSRQ)阈值。应理解到，任意其它合适的参数也是可行的。
在一些实施例中，该系统信息可以包括第二指示，用于指示来自相邻小区(例如网络设备120)的多组下行公共信号的周期。该多组下行公共信号中的每组下行公共信号的周期是不同的。每组下行公共信号可以包括一个或多个下行公共信号。每组下行公共信号中的下行公共信号具有相同的周期。在一些实施例中，第二指示可以包括该多组下行公共信号中的每组下行公共信号中的下行公共信号的索引集合以及与该索引集合对应的周期。在一些备选实施例中，第二指示可以仅包括周期的值的集合。
在一些实施例中，该系统信息可以包括第二参数集，用于指示用于第二时间窗的调整的条件。第二时间窗可以被终端设备用于在第二频点集合中的频点处对来自相邻小区(例如，网络设备120)的下行公共信号的接收。换言之，来自网络设备120的下行公共信号可能出现在这些频点处。终端设备可以在第二时间窗内在这些频点执行下行公共信号的扫描，以接收来自网络设备120的下行公共信号。
在一些实施例中，该第二参数集可以包括用于延长第二时间窗的RSRP阈值。在一些实施例中，该第二参数集可以包括用于延长第二时间窗的RSRQ阈值。应理解到，任意其它合适的参数也是可行的。
在一些实施例中，该系统信息可以包括第一指示和第一参数集。在一些实施例中，该系统信息可以包括第二指示和第二参数集。在一些实施例中，该系统信息可以包括第一指示和第二指示两者。在一些实施例中，该系统信息可以包括第一指示、第一参数集、第二指示和第二参数集。应理解到，本公开的实施例并不限于此。根据本公开实施例的系统信息可以包 括第一指示、第一参数集、第二指示和第二参数集的任意一个或任意组合。另外，系统信息还可以包括其它任意合适信息，例如本小区的接入信息等。
参考图3，在生成系统信息后，网络设备110广播302该系统信息。相应地，终端设备130可以接收该系统信息。例如，终端设备130可以在每个频段SSB可能存在的每个频点处停留20ms，再切换到下一频点，直到检测到SSB信号。终端设备130可以根据检测到的SSB信号获取小区系统信息的位置，从而获得系统信息。在本例中，系统信息包括第一指示。终端设备130可以基于该第一指示确定303来自网络设备110的多组下行公共信号的周期。通过该周期，终端设备130可以知晓网络设备110的下行公共信号的周期被进行了波束级调整。
在一些实施例中，终端设备130可以采用第一时间窗在第一频点集合中的频点处执行304对来自网络设备110的下行公共信号的接收。如果在第一频点集合中的一个频点(为方便起见，本文中也称为第一频点)处接收到来自网络设备110的下行公共信号，则终端设备130可以确定305是否调整第一时间窗。
在一些实施例中，该系统信息还可以包括第一参数集。在这些实施例中，终端设备130可以基于第一参数集来确定是否满足调整第一时间窗的条件。如果满足调整第一时间窗的条件，则终端设备130可以确定调整第一时间窗。例如，在第一参数集包括RSRP阈值的实施例中，终端设备130可以对20ms内接收到的一个或多个SSB波束上的下行公共信号进行测量获得相应的RSRP。如果已接收到的下行公共信号的RSRP低于该RSRP阈值，则终端设备130可以确定调整第一时间窗。如果已接收到的下行公共信号的RSRP高于该RSRP阈值，则终端设备130可以确定不调整第一时间窗。在一些实施例中，如果已接收到的下行公共信号的RSRP等于该RSRP阈值，则终端设备130可以确定调整第一时间窗。在一些备选实施例中，如果已接收到的下行公共信号的RSRP等于该RSRP阈值，则终端设备130可以不确定调整第一时间窗。应理解到，这些仅为示例，本公开实施例并不限于此。
在一些实施例中，如果接收到的下行公共信号是终端设备130所需的下行公共信号，例如接收到的下行公共信号的测量使得终端设备130满足小区接入条件，则终端设备130可以确定不调整第一时间窗。在一些实施例中，如果接收到的下行公共信号不是终端设备130所需的下行公共信号，例如接收到的下行公共信号的测量不能使得终端设备130满足小区接入条件，则终端设备130可以确定调整第一时间窗，以继续下行公共信号的接收。
在一些实施例中，终端设备130可以基于第一指示来确定是否调整第一时间窗。例如，终端设备130可以从第一指示确定该多组下行公共信号中的下行公共信号的索引。如果所确定的下行公共信号的索引中的一个或多个索引都被包括在已接收到的下行公共信号的索引集合中，则终端设备130可以确定不调整第一时间窗。如果所确定的下行公共信号的索引中的一个或多个索引没有被包括在已接收到的下行公共信号的索引集合中，则终端设备130可以确定调整第一时间窗。应理解到，这些仅为示例，也可以通过其它任意合适方式来确定是否调整第一时间窗。
继续参考图3，在确定调整第一时间窗后，终端设备130可以基于所确定的周期来调整(例如，延长)306第一时间窗，并且采用调整后的第一时间窗在第一频点处继续接收307该多组下行公共信号中的未被接收到的一组或多组下行公共信号。例如，终端设备130可以将针对第一频点的第一时间窗设置为该多组下行公共信号的周期中的最大值。应理解到，本公开的实施例并不限于此，也可以按照其它周期值来延长第一时间窗，以确保接收到该多组下行公共信号中的所需的下行公共信号。
在一些实施例中，终端设备130可以确定308在调整第一时间窗后是否接收到了未接收到的一组或多组下行公共信号。如果接收到该一组或多组下行公共信号，终端设备130可以停止309在第一频点处的对网络设备110的下行公共信号的接收。由此可以避免不必要的下行公共信号接收操作。
在一些实施例中，终端设备130可以测量310接收到的下行公共信号，并基于测量的结果来执行311小区选择。例如，终端设备130可以对接收到的多组下行公共信号进行测量。如果测量结果满足预定条件，则可以选择网络设备110提供的小区111。应理解到，可以通过任意合适方式来实现该小区选择，本公开实施例对此并不作限制。
由此，可以通过小于或等于默认周期的SSB波束发现小区，并且可以通过延长接收时间获得完整的SSB波束以进行小区测量。因此，在没有显著增加小区搜索时延的情况下，减轻了SSB波束周期延长对小区选择的影响。
尽管上面结合网络设备110描述了图3的过程，但应理解到，图3的过程也适用于网络设备120。
图4示出了根据本公开实施例的另一示例通信过程400的示意图。为方便起见，这里将结合图1的示例对图4进行说明。该过程400可以涉及网络设备110、120和终端设备130。应理解到，图4的过程可以包括其它未示出的附加步骤，或者可以省略示出的一些步骤。本公开的范围并不受限于此。假设终端设备130当前由网络设备110提供服务，网络设备120提供相邻小区。
如图4所示，网络设备110生成401第一系统信息，并且广播402该第一系统信息。网络设备120生成403第二系统信息，并且广播404该第二系统信息。在一些实施例中，第一系统信息和第二系统信息中的任一个都可以包括SIB，例如，SIB1、SIB3、SIB4等。在一些实施例中，第一系统信息和第二系统信息中的任一个都可以包括MIB。当然，这些系统信息也可以采用其它合适形式，本公开实施例对此不进行限制。
第一系统信息和第二系统信息中的每一个系统信息都可以与上面结合图3描述的系统信息类似地生成。在一些实施例中，来自网络设备110的第一系统信息可以包括第二指示，用于指示来自相邻小区(例如，网络设备120)的多组下行公共信号的周期。来自网络设备120的第二系统信息可以包括第三指示，用于指示本小区(即，网络设备120)的多组下行公共信号的周期。
在一些实施例中，来自网络设备110的第一系统信息还可以包括第一指示，用于指示来自本小区(即，网络设备110)的多组下行公共信号的周期。在一些实施例中，来自网络设备110的第一系统信息还可以包括第二参数集，用于指示用于第二时间窗的调整的条件，第二时间窗被用于在第二频点集合中的频点处执行对相邻小区(即，网络设备120)的下行公共信号的接收。在一些实施例中，来自网络设备110的第一系统信息还可以包括第一参数集，用于指示用于第一时间窗的调整的条件，第一时间窗被用于在第一频点集合中的频点处执行对本小区(即，网络设备110)的下行公共信号的接收。
在一些实施例中，来自网络设备120的第二系统信息还可以包括第三参数集，用于指示用于第二时间窗的调整的条件，第二时间窗被用于在第二频点集合中的频点处执行对本小区(即，网络设备120)的下行公共信号的接收。在一些实施例中，来自网络设备120的第二系统信息还可以包括第四指示，用于指示来自相邻小区(例如，网络设备110)的多组下行公共信号的周期。在一些实施例中，来自网络设备120的第二系统信息还可以包括第四参数 集，用于指示用于第三时间窗的调整的条件，第三时间窗被用于在第一频点集合中的频点处执行对相邻小区(例如，网络设备110)的下行公共信号的接收。应理解到，第一系统信息和第二系统信息也可以包括其它任意合适信息，本公共实施例对此不进行限制。
参考图4，终端设备130可以接收该第一系统信息和第二系统信息。在本例中，第一系统信息包括第二指示，并且第二系统信息包括第三指示。终端设备130可以基于该第二指示和第三指示中的至少一项来确定405来自相邻小区(例如，网络设备120)的多组下行公共信号的周期。通过该周期，终端设备130可以知晓网络设备120的下行公共信号的周期被进行了波束级调整。
在一些实施例中，终端设备130可以基于来自网络设备110的第一系统信息中的第二指示，将第二时间窗初始化406为网络设备120的多组下行公共信号的周期中的最小值。终端设备130可以采用经初始化的第二时间窗，在第二频点集合中的频点处执行407对来自网络设备120的下行公共信号的接收。网络设备120的下行公共信号可能出现在该第二频点集合中的频点处。由此，可以实现对相邻小区的下行公共信号的高效接收。
如果在第二频点集合中的一个频点(为方便起见，本文中也称为第二频点)处接收到来自网络设备110的下行公共信号，则终端设备130可以确定408是否调整第二时间窗。
在其中第一系统信息还包括第二参数集的一些实施例中，终端设备130可以基于第二参数集来确定是否满足调整第二时间窗的条件。如果满足调整第二时间窗的条件，则终端设备130可以确定调整第二时间窗。例如，在第二参数集包括RSRP阈值的实施例中，终端设备130可以对20ms内接收到的一个或多个SSB波束上的下行公共信号进行测量获得相应的RSRP。如果已接收到的下行公共信号的RSRP低于该RSRP阈值，则终端设备130可以确定调整第二时间窗。如果已接收到的下行公共信号的RSRP高于该RSRP阈值，则终端设备130可以确定不调整第二时间窗。在一些实施例中，如果已接收到的下行公共信号的RSRP等于该RSRP阈值，则终端设备130可以确定调整第二时间窗。在一些备选实施例中，如果已接收到的下行公共信号的RSRP等于该RSRP阈值，则终端设备130可以不确定调整第二时间窗。应理解到，这些仅为示例，本公开实施例并不限于此。
在其中第二系统信息还包括第三参数集的一些实施例中，终端设备130也可以基于第三参数集来确定是否满足调整第二时间窗的条件。如果满足调整第二时间窗的条件，则终端设备130可以确定调整第二时间窗。可以与上述基于第二参数集的确定类似地基于第三参数集来确定是否调整第二时间窗，这里不再赘述。
在一些实施例中，如果接收到的下行公共信号是终端设备130所需的下行公共信号，例如接收到的下行公共信号的测量使得终端设备130满足小区重新接入条件，则终端设备130可以确定不调整第二时间窗。在一些实施例中，如果接收到的下行公共信号不是终端设备130所需的下行公共信号，例如接收到的下行公共信号的测量不能使得终端设备130满足小区重新接入条件，则终端设备130可以确定调整第二时间窗，以继续相邻小区的下行公共信号的接收。
在一些实施例中，终端设备130可以基于第二指示来确定是否调整第二时间窗。例如，终端设备130可以从第二指示确定来自网络设备120的多组下行公共信号中的下行公共信号的索引。如果所确定的下行公共信号的索引中的一个或多个索引都被包括在已接收到的下行公共信号的索引集合中，则终端设备130可以确定不调整第二时间窗。如果所确定的下行公共信号的索引中的一个或多个索引没有被包括在已接收到的下行公共信号的索引集合中，则 终端设备130可以确定调整第二时间窗。应理解到，这些仅为示例，也可以通过其它任意合适方式来确定是否调整第二时间窗。
继续参考图4，在确定调整第二时间窗后，终端设备130可以基于所确定的周期来调整(例如，延长)409第二时间窗，并且采用调整后的第二时间窗在第二频点处继续接收410该多组下行公共信号中的未被接收到的一组或多组下行公共信号。例如，终端设备130可以将针对第二频点的第二时间窗设置为该多组下行公共信号的周期中的最大值。应理解到，本公开的实施例并不限于此，也可以按照其它周期值来延长第二时间窗，以确保接收到该多组下行公共信号中的所需的下行公共信号。
在一些实施例中，终端设备130可以确定411在调整第一时间窗后是否接收到了未接收到的一组或多组下行公共信号。如果接收到该一组或多组下行公共信号，终端设备130可以停止412在第二频点处的对网络设备110的下行公共信号的接收。由此可以避免不必要的下行公共信号接收操作。
在一些实施例中，终端设备130可以测量413接收到的下行公共信号，并基于测量的结果来执行414小区重选。例如，终端设备130可以对接收到的多组下行公共信号进行测量。如果测量结果满足预定条件，则可以重新选择到网络设备120提供的小区121。应理解到，可以通过任意合适方式来实现该小区重选，本公开实施例对此并不作限制。
由此，可以通过小于或等于默认周期的SSB波束发现相邻小区，并且可以通过延长接收时间获得完整的SSB波束以进行相邻小区测量。因此，在没有显著增加相邻小区搜索时延的情况下，减轻了SSB波束周期延长对小区重选的影响。
应理解到，上面结合图3和图4描述的通信过程中的步骤的顺序仅用于说明的目的，并不旨在进行限制。此外，这些通信过程可以包括更多未示出的步骤或可以省略所示出的一些步骤，而不限于上面的描述。
通信方法的示例性实现
与上述通信过程相对应，本公开实施例提供了在网络设备处实施的通信方法和在终端设备处实施的通信方法。图5示出了根据本公开实施例的网络设备处实施的示例通信方法500的流程图。该方法500可以在图1的网络设备110或120处实施。为了方便起见，这里将结合图1的网络设备110对图5进行说明。应理解到，图5的方法可以包括其它未示出的附加步骤，或者可以省略示出的一些步骤。本公开的范围并不受限于此。
如图5所示，在框510处，第一网络设备(例如，网络设备110)生成系统信息。该系统信息包括第一指示，所述第一指示用于指示来自本小区(即，网络设备110)的多组下行公共信号的周期。该多组下行公共信号中的每组下行公共信号的周期是不同的。由此，可以指示本小区的下行公共信号周期的波束级调整。
在一些实施例中，该系统信息还可以包括第一参数集，所述第一参数集用于指示用于第一时间窗的调整的条件。该第一时间窗可以被终端设备用于在第一频点集合中的频点处对来自本小区(即，网络设备110)的下行公共信号的接收。由此调整接收时间，使得可以确保接收到来自本小区的所需的下行公共信号。
在一些实施例中，该系统信息还可以包括第二指示，所述第二指示用于指示来自相邻小区(例如，网络设备120)的多组下行公共信号的周期。该多组下行公共信号中的每组下行公共信号的周期是不同的。由此，可以指示相邻小区的下行公共信号周期的波束级调整。
在一些实施例中，该系统信息还可以包括第二参数集，所述第二参数集用于指示用于第 二时间窗的调整的条件。该第二时间窗可以被终端设备用于在第二频点集合中的频点处对来自相邻小区(例如，网络设备120)的下行公共信号的接收。由此调整接收时间，使得可以确保接收到来自相邻小区的所需的下行公共信号。
在框520处，网络设备110广播所述系统信息。
根据方法500，可以通知本小区的多组下行公共信号的不同周期，从而便于该多组下行公共信号的接收。
图6示出了根据本公开实施例的网络设备处实施的另一示例通信方法600的流程图。该方法600可以在图1的网络设备110或120处实施。为了方便起见，这里将结合图1的网络设备110对图6进行说明。应理解到，图6的方法可以包括其它未示出的附加步骤，或者可以省略示出的一些步骤。本公开的范围并不受限于此。
如图6所示，在框610处，第一网络设备(例如，网络设备110)生成系统信息。该系统信息包括第二指示，所述第二指示用于指示来自相邻小区(即，网络设备120)的多组下行公共信号的周期。该多组下行公共信号中的每组下行公共信号的周期是不同的。由此，可以指示相邻小区的下行公共信号周期的波束级调整。
在一些实施例中，该系统信息还可以包括第二参数集，所述第二参数集用于指示用于第二时间窗的调整的条件。该第二时间窗可以被终端设备用于在第二频点集合中的频点处对来自相邻小区(例如，网络设备120)的下行公共信号的接收。由此调整接收时间，使得可以确保接收到来自相邻小区的所需的下行公共信号。
在一些实施例中，该系统信息还可以包括第一指示，所述第一指示用于指示来自本小区(例如，网络设备110)的多组下行公共信号的周期。该多组下行公共信号中的每组下行公共信号的周期是不同的。由此，可以指示本小区的下行公共信号周期的波束级调整。
在一些实施例中，该系统信息还可以包括第一参数集，所述第一参数集用于指示用于第一时间窗的调整的条件。该第一时间窗可以被终端设备用于在第一频点集合中的频点处对来自本小区(即，网络设备110)的下行公共信号的接收。由此调整接收时间，使得可以确保接收到来自本小区的所需的下行公共信号。
在框620处，网络设备110广播所述系统信息。
根据方法600，可以通知相邻小区的多组下行公共信号的不同周期，从而便于该多组下行公共信号的接收。
应理解到，图5和图6的方法可以单独实施，也可以以任意合适组合来实施。本公开实施例对此不进行任何限制。
图7示出了根据本公开实施例的终端设备处实施的示例通信方法700的流程图。该方法700可以在图1的终端设备130处实施。为了方便起见，这里将结合图1的终端设备130对图7进行说明。应理解到，图7的方法可以包括其它未示出的附加步骤，或者可以省略示出的一些步骤。本公开的范围并不受限于此。
如图7所示，在框710处，终端设备130接收来自第一网络设备(例如网络设备110)的系统信息。该系统信息包括第一指示，该第一指示用于指示来自网络设备110的多组下行公共信号的周期。该多组下行公共信号中的每组下行公共信号的周期是不同的。
在框720处，终端设备130基于第一指示来确定网络设备110的多组下行公共信号的周期。由此，终端设备130可以知晓网络设备的下行公共信号的周期被进行了波束级调整。
在一些实施例中，终端设备130可以采用第一时间窗在第一频点集合中的频点处执行对 来自网络设备110的下行公共信号的接收。如果在第一频点集合中的第一频点处接收到来自网络设备110的下行公共信号，则终端设备130可以确定是否调整第一时间窗。
在一些实施例中，系统信息还可以包括第一参数集，所述第一参数集用于指示用于第一时间窗的调整的条件。在这些实施例中，终端设备130可以基于第一参数集，确定是否满足调整第一时间窗的条件。如果满足调整第一时间窗的条件，则终端设备130确定调整第一时间窗。
在一些实施例中，终端设备130可以基于所确定的周期来调整第一时间窗。例如，终端设备130可以将针对第一频点的第一时间窗设置为该多组下行公共信号的周期中的最大值。由此，可以确保接收到该多组下行公共信号中的所有下行公共信号。应理解到，也可以采用其它合适方式来调整第一时间窗。在这些实施例中，终端设备130可以采用调整后的第一时间窗在第一频点处接收该多组下行公共信号中的未接收到的一组或多组下行公共信号。由此，通过调整第一时间窗，可以确保接收到该多组下行公共信号中的所需的下行公共信号。
在一些实施例中，响应于接收到该一组或多组下行公共信号，终端设备130可以停止在第一频点处对网络设备110的下行公共信号的接收。由此，节省用于下行公共信号接收的开销，提高通信效率。
在一些实施例中，终端设备130可以测量接收到的多组下行公共信号，并且基于测量的结果来执行小区选择。由此，实现高效且准确的小区选择。
在一些实施例中，下行公共信号可以包括以下中的至少一项：PSS、SSS、PBCH信号或用于PBCH的DMRS。例如，下行公共信号可以包括SSB。
根据方法700，可以确定本小区的多组下行公共信号的不同周期，从而便于该多组下行公共信号的接收和有效利用。
图8示出了根据本公开实施例的终端设备处实施的另一示例通信方法800的流程图。该方法800可以在图1的终端设备130处实施。为了方便起见，这里将结合图1的终端设备130对图8进行说明。应理解到，图8的方法可以包括其它未示出的附加步骤，或者可以省略示出的一些步骤。本公开的范围并不受限于此。
如图8所示，在框810处，终端设备130接收来自第一网络设备(例如网络设备110)的第一系统信息和来自第二网络设备(例如网络设备120)的第二系统信息中的至少一项。第一系统信息包括第二指示，第二系统信息包括第三指示，该第二指示和第三指示都用于指示来自网络设备120的多组下行公共信号的周期。该多组下行公共信号中的每组下行公共信号的周期是不同的。
在框820处，终端设备130基于第二指示和第三指示中的至少一项来确定网络设备120的多组下行公共信号的周期。由此，终端设备130可以知晓相邻小区的下行公共信号的周期被进行了波束级调整。
在一些实施例中，终端设备130可以基于第二指示，将第二时间窗初始化为多组下行公共信号的周期中的最小值。该第二时间窗被用于在第二频点集合中的频点处对网络设备120的下行公共信号的接收。终端设备130可以采用经初始化的第二时间窗，在第二频点集合中的频点处执行对来自网络设备120的下行公共信号的接收。由此，可以实现对相邻小区的下行公共信号的有效接收。
在一些实施例中，如果在第二频点集合中的第二频点处接收到来自网络设备120的下行公共信号，终端设备130可以确定是否调整第二时间窗。
在一些实施例中，第一系统信息还可以包括第二参数集，该第二参数集用于指示用于第二时间窗的调整的条件。在这些实施例中，终端设备130可以基于第二参数集，确定是否满足调整第二时间窗的条件。如果满足调整第二时间窗的条件，则终端设备130可以确定调整第二时间窗。由此，可以基于来自本小区的信息来调整对相邻小区的下行公共信号的接收。
在一些实施例中，第二系统信息还可以包括第三参数集，该第三参数集用于指示用于第二时间窗的调整的条件。在这些实施例中，终端设备130可以基于第三参数集，确定是否满足调整第二时间窗的条件。如果满足调整第二时间窗的条件，则终端设备130可以确定调整第二时间窗。由此，可以基于来自相邻小区的信息来调整对该相邻小区的下行公共信号的接收。
在一些实施例中，终端设备130可以基于所确定的周期来调整第二时间窗，并且采用调整后的第二时间窗在第二频点处接收该多组下行公共信号中的未被接收到的一组或多组下行公共信号。在一些实施例中，终端设备130可以将针对第二频点的第二时间窗设置为该多组下行公共信号中的周期中的最大值。由此，通过延长第二时间窗，可以确保接收到该多组下行公共信号中的所有下行公共信号。
在一些实施例中，如果接收到该一组或多组下行公共信号，则终端设备130可以停止在第二频点处对网络设备120的下行公共信号的接收。由此，可以节省用于相邻小区的下行公共信号接收的开销。
在一些实施例中，终端设备130可以测量接收到的多组下行公共信号，并且基于测量的结果来执行小区重选。由此，可以实现高效且准确的小区重选。
在一些实施例中，下行公共信号可以包括以下中的至少一项：PSS、SSS、PBCH信号或用于PBCH的DMRS。例如，下行公共信号可以包括SSB。
根据方法800，可以确定相邻小区的多组下行公共信号的不同周期，从而便于该多组下行公共信号的接收和有效利用。
应理解到，图7和图8的方法可以单独实施，也可以以任意合适组合来实施。本公开实施例对此不进行任何限制。
通信设备的示例性实现
与上述方法相对应，本公开的实施例还提供可以实施这些方法的终端设备和网络设备。下面结合图9和图10对此进行描述。
图9示出了根据本公开实施例的示例网络设备900的框图。应理解到，图9的框图仅用于说明的目的，而不旨在进行限制。图9的设备还可以包括其它任意合适的附加组件。
如图9所示，网络设备900可以包括处理器910和发射器920。所述处理器910可以被配置用于生成系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的。所述发射器可以被配置用于广播所述系统信息。由此，可以通知当前小区的多组下行公共信号的周期。
在一些实施例中，该系统信息还可以包括第一参数集，所述第一参数集用于指示用于第一时间窗的调整的条件，所述第一时间窗被终端设备用于在第一频点集合中的频点处对来自所述第一网络设备的下行公共信号的接收。由此，可以便于实现对第一时间窗的调整。
图10示出了根据本公开实施例的另一示例网络设备1000的框图。应理解到，图10的框图仅用于说明的目的，而不旨在进行限制。图10的设备还可以包括其它任意合适的附加组件。
如图10所示，网络设备1000可以包括处理器1010和发射器1020。所述处理器1010可以被配置用于生成系统信息，所述系统信息包括第二指示，所述第二指示用于指示来自另一网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的。所述发射器可以被配置用于广播所述系统信息。由此，可以通知相邻小区的多组下行公共信号的周期。
在一些实施例中，该系统信息还可以包括第二参数集，所述第二参数集用于指示用于第二时间窗的调整的条件，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收。由此，可以便于实现对第二时间窗的调整。
图11示出了根据本公开实施例的示例终端设备1100的框图。应理解到，图11的框图仅用于说明的目的，而不旨在进行限制。图11的设备还可以包括其它任意合适的附加组件。
如图11所示，终端设备1100可以包括接收器1110和处理器1120。所述接收器1110可以被配置用于接收来自网络设备的系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的。所述处理器1120可以被配置用于基于所述第一指示来确定所述网络设备的多组下行公共信号的周期。由此，可以确定当前小区的多组下行公共信号的周期。
在一些实施例中，所述处理器1120还可以被配置用于：基于所确定的周期来调整第一时间窗，所述第一时间窗被用于在第一频点集合中的频点处对来自所述第一网络设备的下行公共信号的接收。所述接收器1110还可以被配置用于：采用调整后的所述第一时间窗在所述第一频点处接收所述多组下行公共信号中的未被所述终端设备接收到的一组或多组下行公共信号。由此，可以实现对来自当前小区的不同周期的下行公共信号的接收。
在一些实施例中，所述处理器1120可以被配置用于：通过将针对所述第一频点的所述第一时间窗设置为所述多组下行公共信号的周期中的最大值来调整所述第一时间窗。由此，可以确保接收到来自当前小区的多组下行公共信号。
在一些实施例中，所述处理器1120可以被配置用于：响应于接收到所述一组或多组下行公共信号，停止在所述第一频点处对所述第一网络设备的下行公共信号的接收。由此，可以节省下行公共信号接收的开销，并提高通信效率。
在一些实施例中，所述处理器1120可以被配置用于：测量接收到的所述多组下行公共信号；以及基于所述测量的结果来执行小区选择。由此，可以实现高效且正确的小区选择。
在一些实施例中，所述接收器1110还可以被配置用于：采用所述第一时间窗在所述第一频点集合中的频点处执行对来自所述第一网络设备的下行公共信号的接收。所述处理器1120还可以被配置用于：响应于在所述第一频点集合中的第一频点处接收到来自所述第一网络设备的下行公共信号，所述终端设备确定是否调整所述第一时间窗。由此，仅在第一网络设备发送下行公共信号的第一频点处判断是否调整第一时间窗，从而改善第一时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，该系统信息还可以包括第一参数集，所述第一参数集用于指示用于所述第一时间窗的所述调整的条件。在这些实施例中，所述处理器1120可以被配置用于：基于所述第一参数集，确定是否满足调整所述第一时间窗的所述条件；以及如果满足调整所述第一时间窗的所述条件，则确定调整所述第一时间窗。由此，可以进一步改善第一时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
图12示出了根据本公开实施例的示例终端设备1200的框图。应理解到，图12的框图仅 用于说明的目的，而不旨在进行限制。图12的设备还可以包括其它任意合适的附加组件。
如图12所示，终端设备1200可以包括接收器1210和处理器1220。接收器1210可以被配置用于接收来自第一网络设备的第一系统信息和来自第二网络设备的第二系统信息中的至少一项，所述第一系统信息包括第二指示，所述第二系统信息包括第三指示，所述第二指示和所述第三指示都用于指示来自所述第二网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的。处理器1220可以被配置用于基于所述第二指示和所述第三指示中的至少一项来确定所述第二网络设备的多组下行公共信号的周期。由此，可以确定相邻小区的多组下行公共信号的周期。
在一些实施例中，处理器1220还可以被配置用于：基于所述第二指示，将第二时间窗初始化为所述多组下行公共信号的周期中的最小值，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收。接收器1210还可以被配置用于：采用经初始化的所述第二时间窗，在所述第二频点集合中的频点处执行对来自所述第二网络设备的下行公共信号的接收。由此，可以实现对相邻小区的下行公共信号的有效接收。
在一些实施例中，处理器1220还可以被配置用于：所述终端设备基于所确定的周期来调整第二时间窗，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收。接收器1210还可以被配置用于：采用调整后的所述第二时间窗在所述第二频点处接收所述多组下行公共信号中的未被所述终端设备接收到的一组或多组下行公共信号。由此，可以实现对来自相邻小区的不同周期的下行公共信号的接收。
在一些实施例中，接收器1210还可以被配置用于：采用所述第二时间窗在所述第二频点集合中的频点处执行对来自所述第二网络设备的下行公共信号的接收。处理器1220还可以被配置用于：响应于在所述第二频点集合中的第二频点处接收到来自所述第二网络设备的下行公共信号，确定是否调整所述第二时间窗。由此，仅在第二网络设备发送下行公共信号的第二频点处判断是否调整第二时间窗，从而改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，第一系统信息还可以包括第二参数集，所述第二参数集用于指示用于所述第二时间窗的所述调整的条件。在这些实施例中，处理器1220可以被配置用于：基于所述第二参数集，确定是否满足调整所述第二时间窗的所述条件；以及如果满足调整所述第二时间窗的所述条件，则确定调整所述第二时间窗。由此，可以进一步改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，第二系统信息还可以包括第三参数集，所述第三参数集用于指示用于所述第二时间窗的所述调整的条件。在这些实施例中，处理器1220可以被配置用于：基于所述第三参数集，确定是否满足调整所述第二时间窗的所述条件；以及如果满足调整所述第二时间窗的所述条件，则确定调整所述第二时间窗。由此，可以进一步改善第二时间窗的调整对下行公共信号应用的时延(例如小区测量的时延)的影响。
在一些实施例中，处理器1220可以被配置用于：通过将针对所述第二频点的所述第二时间窗设置为所述多组下行公共信号中的周期中的最大值来调整所述第二时间窗。由此，可以确保接收到来自相邻小区的多组下行公共信号。
在一些实施例中，处理器1220还可以被配置用于：响应于接收到所述一组或多组下行公共信号，停止在所述第二频点处对所述第二网络设备的下行公共信号的接收。由此，可以节省用于相邻小区的下行公共信号接收的开销，并提高通信效率。
在一些实施例中，处理器1220还可以被配置用于：测量接收到的所述多组下行公共信号；以及基于所述测量的结果来执行小区重选。由此，可以实现高效且正确的小区选择。
在一些实施例中，下行公共信号可以包括以下中的至少一项：主同步信号、辅同步信号、物理广播信道信号或用于物理广播信道的解调参考信号。
图13是适合于实现本公开的实施例的设备1300的简化框图。可以提供设备1300以实现网络设备或终端设备，例如图1所示的网络设备110、120和终端设备130中的任一个设备。如图所示，设备1300包括一个或多个处理器1310、耦合到处理器1310的一个或多个存储器1320以及耦合到处理器1310的一个或多个通信模块1340。
通信模块1340用于双向通信。通信模块1340具有通信接口以便于通信。通信接口可以表示与其他网络元件通信所必需的任何接口。
处理器1310可以是适合于本地技术网络的任何类型，并且作为限制性示例，可以包括以下中的一个或多个：通用计算机、专用计算机、微处理器、数字信号处理器和基于多核处理器架构的处理器。设备1300可以具有多个处理器，例如专用集成电路芯片，其在时间上从属于与主处理器同步的时钟。
存储器1320可以包括一个或多个非易失性存储器和一个或多个易失性存储器。非易失性存储器的示例包括但不限于只读存储器(ROM)1324、电可编程只读存储器(EPROM)、闪存、硬盘、光盘(CD)、数字视频盘(DVD)和其他磁存储和/或光存储装置。易失性存储器的示例包括但不限于随机存取存储器(RAM)1322和不会在断电持续时间中持续的其他易失性存储器。
计算机程序1330包括由关联的处理器1310执行的计算机可执行指令。程序1330可以存储在ROM 1320中。处理器1310可以通过将程序1330加载到RAM 1320中来执行任何合适的动作和处理。
可以借助于程序1330来实现本公开的实施例，使得设备1300执行如参考图3至图8所讨论的本公开的处理。设备1300可以对应于上述网络设备1100或终端设备1200，网络设备1100或终端设备1200中的功能模块可以采用设备1300的软件实现。换句话说，网络设备1100或终端设备1200包括的功能模块是设备1300的处理器1310读取存储器1320中存储的程序代码后生成的。本公开的实施例还可以通过硬件或通过软件和硬件的组合来实现。
在一些实施例中，程序1330可以有形地包含在计算机可读介质中，该计算机可读介质可以包括在设备1300中(诸如在存储器1320中)或者可以由设备1300访问的其他存储设备。可以将程序1330从计算机可读介质加载到RAM 1322以供执行。计算机可读介质可以包括任何类型的有形非易失性存储器，例如ROM、EPROM、闪存、硬盘、CD、DVD等。
一般而言，本公开的各种示例实施例可以在硬件或专用电路、软件、逻辑，或其任何组合中实施。某些方面可以在硬件中实施，而其他方面可以在可以由控制器、微处理器或其他计算设备执行的固件或软件中实施。当本公开的实施例的各方面被图示或描述为框图、流程图或使用某些其他图形表示时，将理解此处描述的方框、装置、系统、技术或方法可以作为非限制性的示例在硬件、软件、固件、专用电路或逻辑、通用硬件或控制器或其他计算设备，或其某些组合中实施。可用来实现本公开实施例的硬件器件的示例包括但不限于：现场可编程门阵列(FPGA)、专用集成电路(ASIC)、专用标准产品(ASSP)、片上系统(SOC)、复杂可编程逻辑器件(CPLD)，等等。
作为示例，本公开的实施例可以在机器可执行指令的上下文中被描述，机器可执行指令 诸如包括在目标的真实或者虚拟处理器上的器件中执行的程序模块中。一般而言，程序模块包括例程、程序、库、对象、类、组件、数据结构等，其执行特定的任务或者实现特定的抽象数据结构。在各实施例中，程序模块的功能可以在所描述的程序模块之间合并或者分割。用于程序模块的机器可执行指令可以在本地或者分布式设备内执行。在分布式设备中，程序模块可以位于本地和远程存储介质二者中。
用于实现本公开的方法的计算机程序代码可以用一种或多种编程语言编写。这些计算机程序代码可以提供给通用计算机、专用计算机或其他可编程的数据处理装置的处理器，使得程序代码在被计算机或其他可编程的数据处理装置执行的时候，引起在流程图和/或框图中规定的功能/操作被实施。程序代码可以完全在计算机上、部分在计算机上、作为独立的软件包、部分在计算机上且部分在远程计算机上或完全在远程计算机或服务器上执行。
在本公开的上下文中，计算机程序代码或者相关数据可以由任意适当载体承载，以使得设备、装置或者处理器能够执行上文描述的各种处理和操作。载体的示例包括信号、计算机可读介质等等。
信号的示例可以包括电、光、无线电、声音或其它形式的传播信号，诸如载波、红外信号等。
机器可读介质可以是包含或存储用于或有关于指令执行系统、装置或设备的程序的任何有形介质。机器可读介质可以是机器可读信号介质或机器可读存储介质。机器可读介质可以包括但不限于电子的、磁的、光学的、电磁的、红外的或半导体系统、装置或设备，或其任意合适的组合。机器可读存储介质的更详细示例包括带有一根或多根导线的电气连接、便携式计算机磁盘、硬盘、随机存储存取器(RAM)、只读存储器(ROM)、可擦除可编程只读存储器(EPROM或闪存)、光存储设备、磁存储设备，或其任意合适的组合。
另外，尽管操作以特定顺序被描绘，但这并不应该理解为要求此类操作以示出的特定顺序或以相继顺序完成，或者执行所有图示的操作以获取期望结果。在某些情况下，多任务或并行处理会是有益的。同样地，尽管上述讨论包含了某些特定的实施细节，但这并不应解释为限制任何发明或权利要求的范围，而应解释为对可以针对特定发明的特定实施例的描述。本说明书中在分开的实施例的上下文中描述的某些特征也可以整合实施在单个实施例中。反之，在单个实施例的上下文中描述的各种特征也可以分离地在多个实施例或在任意合适的子组合中实施。
尽管已经以特定于结构特征和/或方法动作的语言描述了主题，但是应当理解，所附权利要求中限定的主题并不限于上文描述的特定特征或动作。相反，上文描述的特定特征和动作是作为实现权利要求的示例形式而被公开的。

Claims (47)

  1. [援引加入（细则20.6）26.06.2023]
  2. [援引加入（细则20.6）26.06.2023]
  3. [援引加入（细则20.6）26.06.2023]
  4. [援引加入（细则20.6）26.06.2023]
  5. [援引加入（细则20.6）26.06.2023]
  6. [援引加入（细则20.6）26.06.2023]
  7. [援引加入（细则20.6）26.06.2023]
  8. [援引加入（细则20.6）26.06.2023]
  9. [援引加入（细则20.6）26.06.2023]
  10. [援引加入（细则20.6）26.06.2023]
  11. [援引加入（细则20.6）26.06.2023]
  12. [援引加入（细则20.6）26.06.2023]
  13. [援引加入（细则20.6）26.06.2023]
  14. [援引加入（细则20.6）26.06.2023]
  15. [援引加入（细则20.6）26.06.2023]
  16. [援引加入（细则20.6）26.06.2023]
  17. [援引加入（细则20.6）26.06.2023]
  18. [援引加入（细则20.6）26.06.2023]
  19. [援引加入（细则20.6）26.06.2023]
  20. [援引加入（细则20.6）26.06.2023]
  21. [援引加入（细则20.6）26.06.2023]
  22. [援引加入（细则20.6）26.06.2023]
  23. [援引加入（细则20.6）26.06.2023]
    一种通信方法，包括：
    第一网络设备生成系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述第一网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及
    所述第一网络设备广播所述系统信息。
  24. [援引加入（细则20.6）26.06.2023]
    根据权利要求1所述的方法，其中所述系统信息还包括第一参数集，所述第一参数集用于指示用于第一时间窗的调整的条件，所述第一时间窗被终端设备用于在第一频点集合中的频点处对来自所述第一网络设备的下行公共信号的接收。
  25. [援引加入（细则20.6）26.06.2023]
    一种通信方法，包括：
    第一网络设备生成系统信息，所述系统信息包括第二指示，所述第二指示用于指示来自第二网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及
    所述第一网络设备广播所述系统信息。
  26. [援引加入（细则20.6）26.06.2023]
    根据权利要求3所述的方法，其中所述系统信息还包括第二参数集，所述第二参数集用于指示用于第二时间窗的调整的条件，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收。
  27. [援引加入（细则20.6）26.06.2023]
    一种通信方法，包括：
    终端设备接收来自第一网络设备的系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述第一网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及
    所述终端设备基于所述第一指示来确定所述第一网络设备的多组下行公共信号的周期。
  28. [援引加入（细则20.6）26.06.2023]
    根据权利要求5所述的方法，还包括：
    所述终端设备基于所确定的周期来调整第一时间窗，所述第一时间窗被用于在第一频点集合中的频点处对来自所述第一网络设备的下行公共信号的接收；以及
    所述终端设备采用调整后的所述第一时间窗在所述第一频点处接收所述多组下行公共信号中的未被所述终端设备接收到的一组或多组下行公共信号。
  29. [援引加入（细则20.6）26.06.2023]
    根据权利要求6所述的方法，其中调整所述第一时间窗包括：
    所述终端设备将针对所述第一频点的所述第一时间窗设置为所述多组下行公共信号的周期中的最大值。
  30. [援引加入（细则20.6）26.06.2023]
    根据权利要求6所述的方法，还包括：
    响应于接收到所述一组或多组下行公共信号，所述终端设备停止在所述第一频点处对所述第一网络设备的下行公共信号的接收。
  31. [援引加入（细则20.6）26.06.2023]
    根据权利要求6所述的方法，还包括：
    所述终端设备测量接收到的所述多组下行公共信号；以及
    所述终端设备基于所述测量的结果来执行小区选择。
  32. [援引加入（细则20.6）26.06.2023]
    根据权利要求6所述的方法，还包括：
    所述终端设备采用所述第一时间窗在所述第一频点集合中的频点处执行对来自所述第一网络设备的下行公共信号的接收；以及
    响应于在所述第一频点集合中的第一频点处接收到来自所述第一网络设备的下行公共信号，所述终端设备确定是否调整所述第一时间窗。
  33. [援引加入（细则20.6）26.06.2023]
    根据权利要求10所述的方法，其中所述系统信息还包括第一参数集，所述第一参数集用于指示用于所述第一时间窗的所述调整的条件，并且其中确定是否调整所述第一时间窗包括：
    所述终端设备基于所述第一参数集，确定是否满足调整所述第一时间窗的所述条件；以及
    如果满足调整所述第一时间窗的所述条件，则确定调整所述第一时间窗。
  34. [援引加入（细则20.6）26.06.2023]
    一种通信方法，包括：
    终端设备接收来自第一网络设备的第一系统信息和来自第二网络设备的第二系统信息中的至少一项，所述第一系统信息包括第二指示，所述第二系统信息包括第三指示，所述第二指示和所述第三指示都用于指示来自所述第二网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及
    所述终端设备基于所述第二指示和所述第三指示中的至少一项来确定所述第二网络设备的多组下行公共信号的周期。
  35. [援引加入（细则20.6）26.06.2023]
    根据权利要求12所述的方法，还包括：
    所述终端设备基于所述第二指示，将第二时间窗初始化为所述多组下行公共信号的周期中的最小值，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收；以及
    所述终端设备采用经初始化的所述第二时间窗，在所述第二频点集合中的频点处执行对来自所述第二网络设备的下行公共信号的接收。
  36. [援引加入（细则20.6）26.06.2023]
    根据权利要求12所述的方法，还包括：
    所述终端设备基于所确定的周期来调整第二时间窗，所述第二时间窗被终端设备用于在第二频点集合中的频点处对所述第二网络设备的下行公共信号的接收；以及
    所述终端设备采用调整后的所述第二时间窗在所述第二频点处接收所述多组下行公共信号中的未被所述终端设备接收到的一组或多组下行公共信号。
  37. [援引加入（细则20.6）26.06.2023]
    根据权利要求14所述的方法，还包括：
    所述终端设备采用所述第二时间窗在所述第二频点集合中的频点处执行对来自所述第二网络设备的下行公共信号的接收；以及
    响应于在所述第二频点集合中的第二频点处接收到来自所述第二网络设备的下行公共信号，所述终端设备确定是否调整所述第二时间窗。
  38. [援引加入（细则20.6）26.06.2023]
    根据权利要求15所述的方法，其中所述第一系统信息还包括第二参数集，所述第二参数集用于指示用于所述第二时间窗的所述调整的条件，并且其中确定是否调整所述第二时间窗包括：
    所述终端设备基于所述第二参数集，确定是否满足调整所述第二时间窗的所述条件；以及
    如果满足调整所述第二时间窗的所述条件，则确定调整所述第二时间窗。
  39. [援引加入（细则20.6）26.06.2023]
    根据权利要求15所述的方法，其中所述第二系统信息还包括第三参数集，所述第三参数集用于指示用于所述第二时间窗的所述调整的条件，并且其中确定是否调整所述第二时间窗包括：
    所述终端设备基于所述第三参数集，确定是否满足调整所述第二时间窗的所述条件；以及
    如果满足调整所述第二时间窗的所述条件，则确定调整所述第二时间窗。
  40. [援引加入（细则20.6）26.06.2023]
    根据权利要求14所述的方法，其中调整所述第二时间窗包括：
    所述终端设备将针对所述第二频点的所述第二时间窗设置为所述多组下行公共信号中的周期中的最大值。
  41. [援引加入（细则20.6）26.06.2023]
    根据权利要求14所述的方法，还包括：
    响应于接收到所述一组或多组下行公共信号，所述终端设备停止在所述第二频点处对所述第二网络设备的下行公共信号的接收。
  42. [援引加入（细则20.6）26.06.2023]
    根据权利要求14所述的方法，还包括：
    所述终端设备测量接收到的所述多组下行公共信号；以及
    所述终端设备基于所述测量的结果来执行小区重选。
  43. [援引加入（细则20.6）26.06.2023]
    根据权利要求1至20中任一项所述的方法，其中所述下行公共信号包括以下中的至少一项：主同步信号、辅同步信号、物理广播信道信号或用于物理广播信道的解调参考信号。
  44. [援引加入（细则20.6）26.06.2023]
    一种网络设备，包括：
    处理器，被配置用于生成系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及
    发射器，被配置用于广播所述系统信息。
  45. [援引加入（细则20.6）26.06.2023]
    一种网络设备，包括：
    处理器，被配置用于生成系统信息，所述系统信息包括第二指示，所述第二指示用于指示来自另一网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及
    发射器，被配置用于广播所述系统信息。
  46. [援引加入（细则20.6）26.06.2023]
    一种终端设备，包括：
    接收器，被配置用于接收来自网络设备的系统信息，所述系统信息包括第一指示，所述第一指示用于指示来自所述网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及
    处理器，被配置用于基于所述第一指示来确定所述网络设备的多组下行公共信号的周期。
  47. [援引加入（细则20.6）26.06.2023]
    一种终端设备，包括：
    接收器，被配置用于接收来自第一网络设备的第一系统信息和来自第二网络设备的第二系统信息中的至少一项，所述第一系统信息包括第二指示，所述第二系统信息包括第三指示，所述第二指示和所述第三指示都用于指示来自所述第二网络设备的多组下行公共信号的周期，所述多组下行公共信号中的每组下行公共信号的周期是不同的；以及
    处理器，被配置用于基于所述第二指示和所述第三指示中的至少一项来确定所述第二网络设备的多组下行公共信号的周期。
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