WO2021196965A1 - 一种测量间隙的配置方法及装置 - Google Patents

一种测量间隙的配置方法及装置 Download PDF

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Publication number
WO2021196965A1
WO2021196965A1 PCT/CN2021/078952 CN2021078952W WO2021196965A1 WO 2021196965 A1 WO2021196965 A1 WO 2021196965A1 CN 2021078952 W CN2021078952 W CN 2021078952W WO 2021196965 A1 WO2021196965 A1 WO 2021196965A1
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WIPO (PCT)
Prior art keywords
measurement gap
terminal
period
configuration information
reference signal
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PCT/CN2021/078952
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English (en)
French (fr)
Inventor
赵辰
徐波
刘海义
师江伟
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荣耀终端有限公司
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Publication of WO2021196965A1 publication Critical patent/WO2021196965A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for configuring a measurement gap.
  • measurement is a common and important process. For example, when the terminal is in the idle state, the terminal determines whether to reselect to the neighboring cell by measuring the signal quality of the serving cell and neighboring cells; for another example, when the terminal is in the connected state, the terminal measures the signal quality of the serving cell and neighboring cells. , And report to the network device, and the network device determines and triggers the terminal to switch to the neighboring cell according to the measurement value of each cell reported by the terminal.
  • a terminal in a connected state may need to configure a measurement gap when implementing measurements on neighboring cells of different frequencies or different systems. In the configured measurement gap, the terminal receives signals from neighboring cells of different frequencies or systems to complete the measurement process.
  • the network equipment generally configures the parameters of the measurement gap for the terminal, such as the length of the measurement gap, the period of the measurement gap, and so on. The length of the measurement gap cannot be too long, and the typical value is 6 milliseconds.
  • the primary synchronization signal (PSS), the secondary synchronization signal (SSS), and the physical broadcast channel (Physical broadcast channel, PBCH) is called synchronization signal/broadcast signal block (synchronization signal/PBCH block, SS/PBCH block).
  • SS/PBCH block is called SSB.
  • the NR cell will send multiple SSBs in one cycle, each SSB covers a certain area, and each SSB is sent at the position of the SSB candidates (candidates) defined by the protocol. All SSB candidates are located within one half frame (5 milliseconds). If the terminal can accurately measure the SSB of the neighboring cell, the time domain position of the SSB needs to fall within the configured measurement gap.
  • the SSB may be sent in half-frames at different positions, that is, the positions of the SSB sent by different cells in the time domain may not be aligned.
  • the terminal may not be able to measure the SSBs of all neighboring cells within the measurement gap, and thus may not be able to correctly implement reselection or handover.
  • the embodiments of the present application provide a method and device for configuring a measurement gap, in order to solve the problem that the terminal may not be able to measure the SSBs of all neighboring cells in the measurement gap.
  • the terminal obtains the configuration information by receiving the configuration information from the network device, or can obtain the stored or pre-configured configuration information.
  • the configuration information further includes any one or more of the following: the period of the measurement gap, the length of the measurement gap, or the number of measurement gaps included in one period of the measurement gap .
  • the updated configuration information is received from the network device, and the updated configuration information may include the interval of the updated measurement gap, and the terminal shall, according to the updated configuration information, make every other updated interval of the measurement gap. , Receiving the reference signal from the neighboring cell in the measurement gap.
  • the parameters in the configuration information can be optimized. For example, the measurement gap, the period of the measurement gap, the length of the measurement gap, or the number of measurement gaps included in one period of the measurement gap can be optimized, Further improve the measurement efficiency and performance of neighboring cells.
  • a method for configuring a measurement gap may include the following steps: a network device generates configuration information, wherein the configuration information includes the interval of the measurement gap, and the measurement gap is used by the terminal to measure the location of the terminal.
  • the interval of the measurement gap is M times the half-frame
  • the period for the neighboring cell to send the reference signal is the first period
  • the first period is N times the half-frame.
  • the candidate positions of all reference signals sent by the neighboring cell are within one half frame of the first period, the M and the N are relatively prime, and M and N are positive integers; the network device sends the terminal Configuration information.
  • the configuration information further includes any one or more of the following: the period of the measurement gap, the length of the measurement gap, or the number of measurement gaps included in one period of the measurement gap .
  • the network device updates the configuration information.
  • the parameters in the configuration information can be optimized.
  • the measurement gap, the period of the measurement gap, and the length of the measurement gap can be optimized.
  • the network device sends the updated configuration information to the terminal, and the terminal uses the updated configuration information to receive the reference signal of the neighboring cell, which can improve the Measurement efficiency and performance of neighboring cells.
  • the communication module is used to send the configuration information to the terminal.
  • the processing module is also used to update the configuration information; the communication module is also used to send the updated configuration information to the terminal.
  • the embodiments of the present application provide some optional implementation manners or possible designs, as described below.
  • the configuration information further includes any one or more of the following: the period of the measurement gap, the length of the measurement gap, or the number of measurement gaps included in one period of the measurement gap .
  • the number of measurement gaps is not less than N.
  • the number of measurement gaps may be set to be greater than 1, so that compared to only one measurement gap in the period of one measurement time slot, more reference signals of neighboring cells can be measured.
  • the number of measurement gaps is an integer multiple of N.
  • each neighboring area can obtain multiple measurement results, and the multiple measurement results can be combined to improve the measurement accuracy of the neighboring area.
  • the length of the measurement gap is not less than the sum of a half frame and a reference signal transmission time. This can avoid receiving an incomplete reference signal in a measurement gap. For example, a part of a reference signal falls in the previous measurement gap, and the other part falls in the next measurement gap or falls in a non-measurement gap, so that the terminal cannot obtain a complete reference signal.
  • the terminal by setting the length of the measurement gap not less than the sum of the half-frame and the transmission time of a reference signal, and adding a reference signal transmission time on the basis of the half-frame, the terminal can receive the entire reference signal block transmitted in the half-frame .
  • a communication device in a fifth aspect, includes a communication interface and a processor.
  • the communication interface is used for communication between the communication device and other devices, for example, data or signal transmission and reception.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, and other devices may be network devices.
  • the processor is used to call a set of programs, instructions or data to execute the method described in the first aspect.
  • the communication device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes instructions or data stored in the memory, the method described in the first aspect can be implemented.
  • a communication device in a sixth aspect, includes a communication interface and a processor.
  • the communication interface is used for communication between the communication device and other devices, for example, data or signal transmission and reception.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, and other devices may be terminals.
  • the processor is used to call a set of programs, instructions or data to execute the method described in the second aspect.
  • the communication device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes instructions or data stored in the memory, the method described in the second aspect can be implemented.
  • an embodiment of the present application also provides a computer-readable storage medium.
  • the computer-readable storage medium stores computer-readable instructions.
  • the method described in the first aspect, the second aspect, any possible design in the first aspect, or any possible design in the second aspect is executed.
  • an embodiment of the present application provides a chip system, which includes a processor and may also include a memory, which is used to implement any one of the possible designs of the first aspect, the second aspect, and the first aspect, Or the method described in any of the possible designs in the second aspect.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • an embodiment of the present application provides a communication system.
  • the communication system includes a first terminal and a network device.
  • the method described above; and/or, the network device is used to execute the method described in the second aspect or any one of the possible designs of the second aspect.
  • the tenth aspect provides a computer program product containing instructions, which when run on a computer, enables the computer to execute any one of the possible designs of the first aspect, the second aspect, the first aspect, or the second aspect Any of the possible designs described in the method.
  • FIG. 1 is a schematic diagram of the architecture of a communication system in an embodiment of the application
  • FIG. 2 is a schematic diagram of the relationship between the measurement gap and the SSB when the time domain of the adjacent cell SSB is not aligned in an embodiment of the application;
  • FIG. 3 is a schematic flowchart of a method for configuring a measurement gap in an embodiment of the application
  • FIG. 4 is a schematic flowchart of a method for updating the interval of a measurement gap in an embodiment of the application
  • FIG. 5 is one of the schematic diagrams of the structure of the communication device in the embodiment of the application.
  • FIG. 6 is the second schematic diagram of the structure of the communication device in the embodiment of the application.
  • the embodiments of the present application provide a method and device for configuring a measurement gap, in order to solve the problem that the terminal may not be able to measure the SSBs of all neighboring cells in the measurement gap.
  • the method and the device are based on the same technical concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • the measurement gap configuration method provided in the embodiments of the present application can be applied to the fourth generation (4th generation, 4G) communication system, such as long term evolution (LTE), and can also be applied to the fifth generation (5th generation, 5G).
  • Communication systems such as 5G new radio (NR), or applied to various communication systems in the future.
  • FIG. 1 shows the architecture of a possible communication system to which the measurement gap configuration method provided by the embodiment of the present application is applicable.
  • the communication system 100 includes: a network device 101 and one or more terminals 102.
  • the network device 101 may also be connected to the core network.
  • the network device 101 provides services for the terminals 102 within the coverage area.
  • a network device 101 provides wireless access for one or more terminals 102 within the coverage area of the network device 101.
  • the network devices can also communicate with each other.
  • the network device 101 can communicate with the network device 101'.
  • the network device 101 is a node in a radio access network (radio access network, RAN), which may also be referred to as a base station, and may also be referred to as a RAN node (or device).
  • RAN radio access network
  • some examples of network equipment 101 are: next generation nodeB (gNB), next generation evolved nodeB (Ng-eNB), transmission reception point (TRP), evolved type Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), or wireless fidelity (Wifi) access point (AP),
  • the network device 101 may also be a satellite, and the satellite may also be called a high-altitude platform, a high-altitude aircraft, or a satellite base station.
  • the network device 101 may
  • the network equipment may include a centralized unit (CU) and a distributed unit (DU).
  • the network device may also include an active antenna unit (AAU).
  • CU implements some functions of network equipment
  • DU implements some functions of network equipment.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol, PDCP) layer function.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the terminal 102 also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides users with voice and/or data connectivity .
  • the terminal 102 includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • the serving cell sends a signal to the terminal, which means that the network device in which the serving cell is located sends a signal to the terminal.
  • the neighboring cell sends a signal to the terminal, which means that the network device where the neighboring cell is located sends a signal to the terminal.
  • the terminal needs to measure a cell adjacent to the serving cell.
  • the cell adjacent to the serving cell where the terminal is located may be referred to as a neighboring cell or a neighboring cell.
  • the serving cell where the terminal is located can have one or more neighboring cells. When the terminal is at the edge of the serving cell, it needs to measure the neighboring cell, and may trigger reselection or cell handover or other behaviors.
  • the terminal can stop receiving signals on the serving cell, adjust the radio frequency channel to work at the frequency point of the inter-frequency/different system cell, receive the signals of the inter-frequency/different system cell, and complete the measurement of the neighboring cell.
  • This application scenario is only an example, and the embodiments of the present application are not limited to being applied to this application scenario. As long as it is a scene where the gap needs to be measured.
  • the reference signal is described by taking SSB as an example.
  • one SSB contains four orthogonal frequency division multiplexing (OFDM) symbols.
  • the terminal jointly determines the SSB block index (block index) through different demodulation reference symbol (DMRS) sequences and the index number (index) transmitted in the PBCH to identify different SSBs.
  • DMRS demodulation reference symbol
  • index index
  • the synchronization signal is transmitted by beam scanning.
  • the network device will send multiple SSBs in one cycle, each SSB covers a certain area, and each SSB is sent at the position of the SSB candidates (candidates) defined by the protocol.
  • All SSB candidates are located in one half frame (5 milliseconds), and the SSBs sent together in one half frame form an SSB burst set (SSB burst set).
  • SSB burst set SSB burst set
  • the position of the SSB candidates refers to the position of the symbol in the time domain, which will not be described in detail below.
  • the SSB sent by the neighboring cell will be repeated periodically, and the period size is configurable.
  • the possible values of the SSB period can be: 5 milliseconds (millisecond, ms), 10ms, 20ms, 40ms, 80ms, or 160ms.
  • the typical value of the period is 20 ms.
  • the serving cell where the terminal is located has two neighboring cells, neighboring cell 1 and neighboring cell 2.
  • the SSB period of neighboring cell 1 and neighboring cell 2 are both 20ms.
  • Neighboring cell 1 and neighboring cell 2 transmit SSB half-frames at different positions in the time domain.
  • the period of the measurement gap of the terminal is 40 ms.
  • the measurement gap of the terminal can only cover the half-frame where the neighboring cell 2 sends the SSB, and does not cover the half-frame where the neighboring cell 1 sends the SSB. In this way, the terminal cannot measure the SSB of the neighboring cell 1 within the measurement gap, but can only measure the neighboring cell 1's SSB.
  • the process of the method for configuring the measurement gap provided by the embodiment of the present application will be described in detail below.
  • the method provided in this application is intended to ensure that the terminal can measure the reference signals of all neighboring cells, or enable the terminal to measure the reference signals of more neighboring cells as much as possible.
  • the method for configuring the measurement gap is as follows.
  • the network device sends configuration information to the terminal, and the terminal receives the configuration information from the network device.
  • the configuration information is used to configure the relevant parameters of the measurement gap. It can be understood here that the serving cell sends configuration information to the terminal, and the terminal receives the configuration information from the serving cell.
  • the configuration information may include the interval of the measurement gap, and the interval of the measurement gap refers to the interval of the measurement gap after one measurement to continue the next measurement. Every measurement takes place within the measurement gap.
  • This application is designed for the gap-interval of the measurement gap. Through this design, it is expected that the terminal can measure more neighboring cell reference signals. Assuming that the reference signal transmission cycle of the neighboring cell of the serving cell where the terminal is located is the first cycle, the first cycle is N times the length of a period of time, and the reference signal sent by the neighboring cell in the first cycle is concentrated in the period of time, that is, in the first cycle The reference signal will not be sent for any period other than this period of time.
  • the reference signal is SSB, and SSB transmission is concentrated in a half frame.
  • the first period is N times the field.
  • the first period is the SSB period (ssb-period).
  • SSB cycle 5*N milliseconds.
  • the SSB period can be 5ms, 10ms, 20ms, 40ms, 80ms, or 160ms, and the optional values of N include 1, 2, 4, 8, 16, and 32.
  • the interval of the measurement gap is M times the half-frame, and M and N satisfy the following relationship: M and N are relatively prime. According to the above-mentioned value of N, it can be considered that M is an odd number and M is greater than 1.
  • the value of M may include: 3, 5, 7, 9, 11.... That is, the optional values of the interval of the measurement gap include ⁇ 15ms, 25ms, 35ms, 45ms, 55ms... ⁇ .
  • the terminal performs a measurement every other "interval" according to the configuration information, and the "interval” is the interval of the measurement gap.
  • the terminal receives the reference signal of the neighboring cell in the measurement gap.
  • the terminal may receive reference signals from different neighboring cells during different measurements.
  • the reference signals of all cells can always be measured.
  • neighboring cell A sends SSB in the first half frame
  • neighboring cell B sends SSB in the second half frame
  • neighboring cell C sends SSB in the third half frame
  • neighboring cell D is in the fourth half frame.
  • Send SSB the terminal can measure the SSB of all 4 neighboring cells at least after 4 intervals.
  • the configuration information may also include the period of the measurement gap (gap-period).
  • the period of the measurement gap can also be referred to as the measurement period.
  • the terminal periodically receives the reference signal of the neighboring cell, or the terminal periodically measures the reference signal of the neighboring cell. In a measurement period, according to the interval of the measurement gap, the reference signal of the neighboring cell is measured one or more times.
  • the specific measurement times, optionally, the number of measurement gaps (gap-num) can be set in the configuration information. For example, if the number of measurement gaps is G, in a period of a measurement gap, the terminal performs G measurements on the reference signal of the neighboring cell according to the interval of the measurement gap. The interval between adjacent measurement gaps between every two measurements. Each measurement is sent in the measurement gap.
  • a reference signal period includes N half-frames
  • at most N neighboring cells can transmit reference signals at different positions. If you want to ensure that the terminal can receive the reference signals of all neighboring cells within the period of one measurement gap, you can set the number of measurement gaps to not less than N. Of course, in the embodiment of the present application, the number of measurement gaps may be set to be greater than 1, so that compared to only one measurement gap in the period of one measurement time slot, more reference signals of neighboring cells can be measured.
  • the duration during which the terminal actually receives the reference signal in the measurement gap may be less than or equal to the measurement gap. That is to say, the terminal may occupy the entire measurement gap to receive the reference signal in the measurement gap, or may occupy a part of the time of the measurement gap to receive the reference signal.
  • the time period for the terminal to actually receive the reference signal of the neighboring cell in the measurement gap is not less than the sum of the half frame and the transmission time of the reference signal. For example, if the transmission time of one SSB is 4 OFDM symbols (4sym), and the 4 OFDM symbols occupy 1ms, the terminal actually receives the neighboring cell reference signal in the measurement gap for no less than 6ms. Assuming that the terminal occupies the entire measurement gap to receive the reference signal in the measurement gap, it can be considered that the duration of the measurement gap is not less than the sum of the half frame and the reference signal transmission time.
  • the terminal may also report the measurement result of the received reference signal, such as the result of RSRP, RSRQ, or signal to dryness ratio of the reference signal, to the network device.
  • the network device receives the measurement result of the reference signal reported by the terminal.
  • the terminal After receiving the updated configuration information of the network device in S304, the terminal measures the neighboring cell according to the interval of the updated measurement gap. It can be seen from Figure 4 that the interval between every two measurement gaps in the measurement gap 1 to the measurement gap n is smaller than the interval between every two measurement gaps after the update, that is, after the configuration information is updated, the terminal is updated according to the Measure neighboring cells at large intervals. If the terminal measures the reference signal at a larger interval, it can not only achieve the effect of measuring more or even all the reference signals of the neighboring cells, but also save the energy consumption of the terminal. Of course, the network device can also configure a smaller interval according to the received measurement result.
  • GapConfig is the measurement gap configuration information; ENUMERATED identifies the enumerated type. mgl represents the length of the measurement gap, ms1dot5 represents 1.5 milliseconds; mgrp represents the period of the measurement gap, enumerated values include 40 milliseconds, 80 milliseconds, etc.; mgnum represents the number of measurement gaps included in the period of a measurement gap; mginterval represents the measurement gap The interval; mgta represents the measurement gap advance, and the enumerated values include 0 milliseconds, 0.25 milliseconds, and 0.5 milliseconds.
  • cell 1 sends SSB in the first half frame
  • cell 2 sends SSB in the second half frame
  • cell 3 sends SSB in the third half frame
  • cell 4 sends SSB in the fourth half frame.
  • the terminal in the conventional mode, assuming that the period of the measurement gap is 40 ms, the terminal can only receive the SSB of cell 1 in each period. Moreover, no matter how the period of the measurement gap is set, the terminal can only receive the SSB of one cell in each period.
  • the black background color indicates that the terminal can receive the SSB of the corresponding cell in this half frame.
  • an embodiment of the present application also provides a communication device 500.
  • the communication device 500 may be a terminal or a network device, or a device in a terminal or a network device, or capable of interacting with A device that is used by a terminal or a network device.
  • the communication device 500 may include modules corresponding to the methods/operations/steps/actions performed by the terminal in the foregoing method embodiments.
  • the modules may be hardware circuits, software, or hardware circuits. Combined with software implementation.
  • the communication device 500 may include a processing module 501 and a communication module 502.
  • the processing module 501 is used to call the communication module 502 to perform receiving and/or sending functions.
  • the communication module 502 is configured to send the configuration information to the terminal.
  • the division of modules in the embodiments of this application is illustrative, and it is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of this application can be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, which is used to communicate with other devices through a transmission medium.
  • the communication interface 610 is used for the device in the communication device 600 to communicate with other devices.
  • the processor 620 is configured to obtain configuration information using the communication interface 610, where the configuration information includes an interval of a measurement gap, the interval of the measurement gap is M times a half frame, and the neighboring cell of the serving cell where the terminal is located sends a reference signal
  • the period of is the first period, the first period is N times the half-frame, the candidate positions of all reference signals sent by the neighboring cell are located within one half-frame of the first period, and the M and the N Coprime, M and N are positive integers;
  • the processor 620 is further configured to use the communication interface 610 to receive the reference signal from the neighboring cell in the measurement gap according to the configuration information.
  • the communication device 600 When the communication device 600 is used to perform operations performed by a network device:
  • the processor 620 is configured to generate configuration information; the configuration information includes the interval of a measurement gap, the measurement gap is used for the terminal to measure the reference signal of the neighboring cell of the serving cell where the terminal is located, and the interval of the measurement gap is M of a half frame.
  • the reference signal transmission cycle of the neighboring cell is the first cycle, the first cycle is N times the half frame, and the candidate positions of all reference signals sent by the neighboring cell are located in one half frame of the first cycle Inside, the M and the N are relatively prime, and M and N are positive integers.
  • the communication interface 610 is used to send the configuration information to the terminal.
  • the processor 620 and the communication interface 610 may also be used to perform other corresponding steps or operations performed by the terminal or the network device in the foregoing method embodiment, which will not be repeated here.
  • the communication device 600 may also include at least one memory 630 for storing program instructions and/or data.
  • the memory 630 and the processor 620 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 620 may cooperate with the memory 630 to operate.
  • the processor 620 may execute program instructions stored in the memory 630. At least one of the at least one memory may be included in the processor.
  • the specific connection medium between the aforementioned communication interface 610, the processor 620, and the memory 630 is not limited in the embodiment of the present application.
  • the memory 630, the processor 620, and the communication interface 610 are connected by a bus 650 in FIG. 6, and the bus is represented by a thick line in FIG. , Is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of representation, only one thick line is used in FIG. 6, but it does not mean that there is only one bus or one type of bus.
  • what the communication module 502 and the communication interface 610 output or receive may be baseband signals.
  • the output or reception of the communication module 1202 and the communication interface 610 may be radio frequency signals.
  • the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or Perform the methods, steps, and logic block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory 630 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and may also be a volatile memory (volatile memory). For example, random-access memory (RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiment of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • an embodiment of the present application further provides a chip including a processor for supporting the communication device to implement the functions related to the terminal in the foregoing method embodiment.
  • the chip is connected to a memory or the chip includes a memory, and the memory is used to store the necessary program instructions and data of the communication device.
  • the embodiment of the present application provides a computer-readable storage medium that stores a computer program, and the computer program includes instructions for executing the foregoing method embodiments.
  • the embodiments of the present application provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the foregoing method embodiments.

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Abstract

本申请公开了一种测量间隙的配置方法及装置,以期使得终端在测量间隙内能够测量更多邻小区的参考信号。该方法包括以下步骤:终端接收来自网络设备的配置信息,其中,所述配置信息包括测量间隙的间隔,所述测量间隙的间隔为半帧的M倍,所述终端所在服务小区的邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数;所述终端根据所述配置信息,在所述测量间隙内接收来自所述邻区的参考信号。

Description

一种测量间隙的配置方法及装置
相关申请的交叉引用
本申请要求在2020年03月31日提交中国专利局、申请号为202010241706.2、申请名称为“一种测量间隙的配置方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域,尤其涉及一种测量间隙的配置方法及装置。
背景技术
在移动通信***中,测量是一个普遍而重要的过程。例如,当终端处于空闲态时,终端通过测量服务小区和邻小区的信号质量,确定是否向邻区重选;又例如,当终端处于连接态时,终端通过测量服务小区和邻小区的信号质量,并向网络设备进行上报,网络设备根据终端上报的各个小区的测量值,决定并触发终端向邻小区切换。处于连接态的终端,在实现对异频或异***的邻小区的测量时,可能会需要配置测量间隙(measurement gap)。在配置的测量间隙内,终端接收异频或异***的邻小区的信号,完成测量的过程。网络设备一般会给终端配置测量间隙的参数,例如测量间隙的长度,测量间隙的周期等。测量间隙的长度不能过长,典型值为6毫秒。
在现有第五代(5th generation,5G)新无线(new radio,NR)通信***中,主同步信号(primary synchronization signal,PSS),辅同步信号(secondary synchronization signal,SSS),和物理广播信道(physical broadcast channel,PBCH)被称为同步信号/广播信号块(synchronization signal/PBCH block,SS/PBCH block)。为描述方便,把SS/PBCH block称为SSB。NR的小区会在一个周期内发送多个SSB,每个SSB覆盖一定区域,每个SSB均在协议定义的SSB候选(candidates)位置进行发送。所有SSB candidates位置位于一个半帧内(5毫秒)。若要终端能够准确测量邻小区的SSB,则SSB的时域位置需要落在配置的测量间隙内。
但是,对于不同的小区来说,可能在不同位置的半帧中发送SSB,即,不同小区发送SSB在时域上的位置可能不会对齐。这种情况下,终端在测量间隙内可能无法测量到所有邻小区的SSB,进而无法正确实现重选或切换。
发明内容
本申请实施例提供一种测量间隙的配置方法及装置,以期解决终端在测量间隙内可能无法测量到所有邻小区的SSB的问题。
第一方面,提供一种测量间隙的配置方法,该方法可以通过以下步骤来实现:终端获取配置信息,其中,所述配置信息包括测量间隙的间隔,所述测量间隙的间隔为半帧的M倍,所述终端所在服务小区的邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述 M与所述N互质,M、N为正整数;所述终端根据所述配置信息,在所述测量间隙内接收来自所述邻区的参考信号。通过配置测量间隙的间隔,终端可以每隔一个间隔测量一次邻区的参考信号,这样,相比现有的在一个测量间隙的周期内只配置一个测量间隙,本申请实施例能够接收到更多邻区的参考信号。由于M与N互质,在经过一定数量的间隔后,总能测量所有小区的参考信号,从而提升对邻区的测量的性能。
其中,终端获取配置信息,可以通过接收来自网络设备的配置信息,也可以获取存储的或预配置的配置信息。
可选的,测量间隙用于所述终端测量所述终端所在服务小区的邻区发送的参考信号,终端实际接收邻区发送参考信号的时间可占用测量间隙的时域位置的部分或全部。
在一个可能的设计中,所述配置信息还包括以下任意一项或多项:所述测量间隙的周期、所述测量间隙的长度、或一个所述测量间隙的周期包括的测量间隙的个数。
在一个可能的设计中,所述测量间隙的个数不小于N。通过设定测量间隙的个数不小于N,能够在一个测量间隙的周期内接收所有邻区的参考信号。当然,本申请实施例可以设置测量间隙的个数大于1即可,这样相比于一个测量时隙的周期内只有一个测量间隙来说,也能够测量更多邻区的参考信号。
可选的,所述测量间隙的个数为N的整数倍。这样每个邻区都可以获得多次测量结果,可以结合多个测量结果提高邻区的测量精度。
在一个可能的设计中,所述测量间隙的长度不小于半帧的长度与一个参考信号的传输时长之和。这样能够避免在一个测量间隙内接收到不完整的参考信号,例如,一个参考信号的一部分落在上一个测量间隙,另一部分落在下一个测量间隙或者落在非测量间隙,这样终端不能获取完整的参考信号,通过设置测量间隙的长度不小于半帧与一个参考信号传输时间之和,在半帧的基础上增加一个参考信号传输时间,就能够使得终端接收到半帧内传输的整个参考信号块。
在一个可能的设计中,接收来自网络设备的更新的配置信息,更新的配置信息可以包括更新的测量间隙的间隔,所述终端根据所述更新的配置信息,每隔一个更新的测量间隙的间隔,在测量间隙内接收来自所述邻区的参考信号。通过配置信息更新,能够优化配置信息中的参数,例如,可以优化测量间隙、所述测量间隙的周期、所述测量间隙的长度、或一个所述测量间隙的周期包括的测量间隙的个数,进一步提升对邻区的测量效率和性能。
在一个可能的设计中,所述参考信号包括同步信号/广播信号块SSB。
第二方面,提供一种测量间隙的配置方法,该方法可以包括以下步骤:网络设备生成配置信息,其中,所述配置信息包括测量间隙的间隔,所述测量间隙用于终端测量所述终端所在服务小区的邻区的参考信号,所述测量间隙的间隔为半帧的M倍,所述邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数;所述网络设备向所述终端发送所述配置信息。通过配置测量间隙的间隔,终端可以每隔一个间隔测量一次邻区的参考信号,这样,相比现有的在一个测量间隙的周期内只配置一个测量间隙,本申请实施例能够接收到更多邻区的参考信号。由于M与N互质,在经过一定数量的间隔后,总能测量所有小区的参考信号,从而提升对邻区的测量的性能。
在一个可能的设计中,所述配置信息还包括以下任意一项或多项:所述测量间隙的周期、所述测量间隙的长度、或一个所述测量间隙的周期包括的测量间隙的个数。
在一个可能的设计中,所述测量间隙的个数不小于N。通过设定测量间隙的个数不小于N,能够在一个测量间隙的周期内接收所有邻区的参考信号。当然,本申请实施例可以设置测量间隙的个数大于1即可,这样相比于一个测量时隙的周期内只有一个测量间隙来说,也能够测量更多邻区的参考信号。
可选的,所述测量间隙的个数为N的整数倍。这样每个邻区都可以获得多次测量结果,可以结合多个测量结果提高邻区的测量精度。
在一个可能的设计中,所述测量间隙的长度不小于半帧与一个参考信号传输时间之和。这样能够避免在一个测量间隙内接收到不完整的参考信号,例如,一个参考信号的一部分落在上一个测量间隙,另一部分落在下一个测量间隙或者落在非测量间隙,这样终端不能获取完整的参考信号,通过设置测量间隙的长度不小于半帧与一个参考信号传输时间之和,在半帧的基础上增加一个参考信号传输时间,就能够使得终端接收到半帧内传输的整个参考信号块。
在一个可能的设计中,所述网络设备更新所述配置信息,通过配置信息更新,能够优化配置信息中的参数,例如,可以优化测量间隙、所述测量间隙的周期、所述测量间隙的长度、或一个所述测量间隙的周期包括的测量间隙的个数,所述网络设备将更新后的配置信息发送给所述终端,终端使用更新后的配置信息接收邻区的参考信号,能够提升对邻区的测量效率和性能。
在一个可能的设计中,所述参考信号包括同步信号/广播信号块SSB。
第三方面,提供一种通信装置,该通信装置可以是终端,也可以是终端中的装置(例如,芯片,或者芯片***,或者电路),或者是能够和终端匹配使用的装置。一种设计中,该通信装置可以包括执行第一方面中所描述的方法/操作/步骤/动作所一一对应的模块,该模块可以是硬件电路,也可是软件,也可以是硬件电路结合软件实现。一种设计中,该通信装置可以包括处理模块和通信模块。处理模块用于调用通信模块执行接收和/或发送的功能。示例性地:
处理模块,用于获取配置信息,例如处理模块用于通过通信模块接收来自网络设备的配置信息。其中,所述配置信息包括测量间隙的间隔,所述测量间隙的间隔为半帧的M倍,所述终端所在服务小区的邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数;通信模块用于根据所述配置信息在所述测量间隙内接收来自所述邻区的参考信号。
在一个可能的设计中,当所述配置信息更新时,所述通信模块还用于根据所述更新后的配置信息接收来自所述邻区的参考信号。
第三方面或可能的设计的有益效果可以参照上述第一方面对应部分的效果,在此不再赘述。
第四方面,提供一种通信装置,该通信装置可以是终端,也可以是终端中的装置(例如,芯片,或者芯片***,或者电路),或者是能够和终端匹配使用的装置。一种设计中,该通信装置可以包括执行第一方面中所描述的方法/操作/步骤/动作所一一对应的模块,该模块可以是硬件电路,也可是软件,也可以是硬件电路结合软件实现。一种设计中,该通信装置可以包括处理模块和通信模块。处理模块用于调用通信模块执行接收和/或发送的功能。示例性地:
处理模块,用于生成配置信息,其中,所述配置信息包括测量间隙的间隔,所述测量间隙用于终端测量所述终端所在服务小区的邻区的参考信号,所述测量间隙的间隔为半帧的M倍,所述邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数;
通信模块,用于向所述终端发送所述配置信息。
在一个可能的设计中,所述处理模块,还用于更新所述配置信息;通信模块,还用于将更新后的配置信息发送给所述终端。
第四方面或可能的设计的有益效果可以参照上述第二方面对应部分的效果,在此不再赘述。
结合上述第三方面或第四方面,本申请实施例提供一些可选的实现方式或可能的设计,如下所述。
在一个可能的设计中,所述配置信息还包括以下任意一项或多项:所述测量间隙的周期、所述测量间隙的长度、或一个所述测量间隙的周期包括的测量间隙的个数。
在一个可能的设计中,所述测量间隙的个数不小于N。通过设定测量间隙的个数不小于N,能够在一个测量间隙的周期内接收所有邻区的参考信号。当然,本申请实施例可以设置测量间隙的个数大于1即可,这样相比于一个测量时隙的周期内只有一个测量间隙来说,也能够测量更多邻区的参考信号。
可选的,所述测量间隙的个数为N的整数倍。这样每个邻区都可以获得多次测量结果,可以结合多个测量结果提高邻区的测量精度。
在一个可能的设计中,所述测量间隙的长度不小于半帧与一个参考信号传输时间之和。这样能够避免在一个测量间隙内接收到不完整的参考信号,例如,一个参考信号的一部分落在上一个测量间隙,另一部分落在下一个测量间隙或者落在非测量间隙,这样终端不能获取完整的参考信号,通过设置测量间隙的长度不小于半帧与一个参考信号传输时间之和,在半帧的基础上增加一个参考信号传输时间,就能够使得终端接收到半帧内传输的整个参考信号块。
第五方面,提供一种通信装置,所述通信装置包括通信接口和处理器,所述通信接口用于该通信装置与其它设备进行通信,例如数据或信号的收发。示例性的,通信接口可以是收发器、电路、总线、模块或其它类型的通信接口,其它设备可以为网络设备。处理器用于调用一组程序、指令或数据,执行上述第一方面描述的方法。所述通信装置还可以包括存储器,用于存储处理器调用的程序、指令或数据。所述存储器与所述处理器耦合,所述处理器执行所述存储器中存储的、指令或数据时,可以实现上述第一方面描述的方法。
第六方面,提供一种通信装置,所述通信装置包括通信接口和处理器,所述通信接口用于该通信装置与其它设备进行通信,例如数据或信号的收发。示例性的,通信接口可以是收发器、电路、总线、模块或其它类型的通信接口,其它设备可以为终端。处理器用于调用一组程序、指令或数据,执行上述第二方面描述的方法。所述通信装置还可以包括存储器,用于存储处理器调用的程序、指令或数据。所述存储器与所述处理器耦合,所述处理器执行所述存储器中存储的、指令或数据时,可以实现上述第二方面描述的方法。
第七方面,本申请实施例中还提供一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机可读指令,当所述计算机可读指令在计算机上运行时,使得如第一方面、 第二方面、第一方面中任一种可能的设计、或第二方面中任一种可能的设计中所述的方法被执行。
第八方面,本申请实施例提供了一种芯片***,该芯片***包括处理器,还可以包括存储器,用于实现上述第一方面、第二方面、第一方面中任一种可能的设计、或第二方面中任一种可能的设计中所述的方法。该芯片***可以由芯片构成,也可以包含芯片和其他分立器件。
第九方面,本申请实施例提供了一种通信***,所述通信***包括第一终端和网络设备,第一终端用于执行如第一方面或第一方面中任一种可能的设计中所述的方法;和/或,网络设备用于执行如第二方面或第二方面中任一种可能的设计中所述的方法。
第十方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面、第二方面、第一方面中任一种可能的设计、或第二方面中任一种可能的设计中所述的方法。
附图说明
图1为本申请实施例中通信***架构示意图;
图2为本申请实施例中邻区SSB时域不对齐时测量间隙与SSB关系示意图;
图3为本申请实施例中测量间隙的配置方法流程示意图;
图4为本申请实施例中测量间隙的间隔更新的方法流程示意图;
图5为本申请实施例中通信装置结构示意图之一;
图6为本申请实施例中通信装置结构示意图之二。
具体实施方式
本申请实施例提供一种测量间隙的配置方法及装置,以期解决终端在测量间隙内可能无法测量到所有邻小区的SSB的问题。其中,方法和装置是基于同一技术构思的,由于方法及装置解决问题的原理相似,因此装置与方法的实施可以相互参见,重复之处不再赘述。
本申请实施例的描述中,“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。本申请实施例中所涉及的至少一个是指一个或多个;多个,是指两个或两个以上。另外,需要理解的是,在本申请实施例的描述中,“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。
本申请实施例提供的测量间隙的配置方法可以应用于***(4th generation,4G)通信***,例如长期演进(long term evolution,LTE),也可以应用于第五代(5th generation,5G)通信***,例如5G新空口(new radio,NR),或应用于未来的各种通信***。
下面将结合附图,对本申请实施例进行详细描述。
图1示出了本申请实施例提供的测量间隙的配置方法适用的一种可能的通信***的架构,参阅图1所示,通信***100中包括:网络设备101和一个或多个终端102。当通信***100包括核心网时,网络设备101还可以与核心网相连。网络设备101为覆盖范围内的终端102提供服务。例如,参见图1所示,网络设备101为网络设备101覆盖范围内的 一个或多个终端102提供无线接入。除此之外,网络设备之间的覆盖范围可以存在重叠的区域,例如网络设备101和网络设备101’。网络设备之间还可以互相通信,例如,网络设备101可以与网络设备101’之间进行通信。
网络设备101为无线接入网(radio access network,RAN)中的节点,又可以称为基站,还可以称为RAN节点(或设备)。目前,一些网络设备101的举例为:下一代基站(next generation nodeB,gNB)、下一代演进的基站(next generation evolved nodeB,Ng-eNB)、传输接收点(transmission reception point,TRP)、演进型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(base band unit,BBU),或无线保真(wireless fidelity,Wifi)接入点(access point,AP),网络设备101还可以是卫星,卫星还可以称为高空平台、高空飞行器、或卫星基站。网络设备101还可以是其他具有网络设备功能的设备,例如,网络设备101还可以是D2D通信中担任网络设备功能的设备。网络设备101还可以是未来可能的通信***中的网络设备。
在一些部署中,网络设备可以包括集中式单元(centralized unit,CU)和(distributed unit,DU)。网络设备还可以包括有源天线单元(active antenna unit,AAU)。CU实现网络设备的部分功能,DU实现网络设备的部分功能,比如,CU负责处理非实时协议和服务,实现无线资源控制(radio resource control,RRC),分组数据汇聚层协议(packet data convergence protocol,PDCP)层的功能。DU负责处理物理层协议和实时服务,实现无线链路控制(radio link control,RLC)层、媒体接入控制(media access control,MAC)层和物理(physical,PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息,或者,由PHY层的信息转变而来,因而,在这种架构下,高层信令,如RRC层信令,也可以认为是由DU发送的,或者,由DU+AAU发送的。可以理解的是,网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外,可以将CU划分为接入网(radio access network,RAN)中的网络设备,也可以将CU划分为核心网(core network,CN)中的网络设备,本申请对此不做限定。
终端102,又称之为用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)等,是一种向用户提供语音和/或数据连通性的设备。例如,终端102包括具有无线连接功能的手持式设备、车载设备等。目前,终端102可以是:手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备(例如智能手表、智能手环、计步器等),车载设备(例如,汽车、自行车、电动车、飞机、船舶、火车、高铁等)、虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制(industrial control)中的无线终端、智能家居设备(例如,冰箱、电视、空调、电表等)、智能机器人、车间设备、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端,或智慧家庭(smart home)中的无线终端、飞行设备(例如,智能机器人、热气球、无人机、飞机)等。终端102还可以是其他具有终端功能的设备,例如,终端102还可以是D2D通信中担任终端功能的终端。
首先需要说明一点,本申请实施例中,服务小区向终端发送信号,意思是服务小区所 在的网络设备向终端发送信号。邻小区向终端发送信号,意思是邻小区所在的网络设备向终端发送信号。
本申请实施例中,终端需要对服务小区相邻的小区进行测量。为方便描述,终端所在服务小区相邻的小区可以称为邻小区或邻区。终端所在的服务小区可以有一个或多个邻区。终端在处于服务小区的边缘时,需要对邻区进行测量,并可能触发重选或小区切换或其他行为。
终端对邻区的测量时,可能接收来自邻区的参考信号,参考信号的质量可以用于判断是否触发重选或小区切换。例如,终端将邻区的参考信号的质量上报给网络设备,网络设备根据终端上报的内容,判断终端是否需要小区切换。参考信号的质量可以包括以下任意一项或多项:参考信号接收功率(reference signal received power,RSRP)、参考信号接收质量(reference signal received quality,RSRQ)、信噪比SNR、信干噪比(signal to interference plus noise ratio,SINR)等。
在NR中,参考信号一般可以是SSB。当然,本申请实施例的方法还可以应用与其他通信***中,参考信号也可以是其他类型的信号。例如,参考信号也可以是信道状态信息参考信号(channel state information reference signal,CSI-RS)。本申请实施例中以参考信号为SSB为例进行介绍,当应用与其他类型的参考信号时,可以将SSB的方案替换为其他类型参考信号的方案。
在一些场景下,终端需要测量间隙对邻区的参考信号进行测量。例如,当终端的服务小区与邻区是异频/异***的场景。这种场景下,终端在RRC连接(RRC_CONNECTED)态时,终端需要始终保持有射频通路工作在服务小区所在的频点。如果终端没有额外的射频通路工作在异频/异***小区的频点上,则无法同时接收服务小区的信号和异频/异***小区的信号,这时就需要一段时间的测量间隙。在测量间隙内,终端可以停止在服务小区上接收信号,将射频通路调整工作在异频/异***小区的频点,接收异频/异***小区的信号,完成对邻区的测量。该应用场景只是一个举例,本申请实施例并不局限于应用到该应用场景下。只要是需要测量间隙的场景均可。
一般情况下,邻区在发送参考信号时采用周期性的发送方式。在一个周期内的一段时间内发送参考信号。并且,不同的邻区发送参考信号的时间可能不是对齐的。而终端在测量邻区的参考信号时,只有邻区发送参考信号的时间落在终端的测量间隙内,或者,只有邻区发送参考信号的时间与终端的测量间隙有交集,终端才能接收到邻区的参考信号。但是如上所述,邻区发送参考信号的时间可能不是对齐的,这样,终端可能在测量时隙内不能接收到所有邻区的参考信号,甚至如果测量间隙不能包含任一邻区的参考信号发送区域,则终端可能在测量时隙内不能接收到任何邻区的参考信号。
本申请实例中参考信号以SSB为例进行说明。
在时域上,一个SSB包含四个正交频分复用(orthogonal frequency division multiplexing,OFDM)符号。终端通过不同的解调参考符号(demodulation reference symbol,DMRS)序列以及PBCH中传输的索引号(index)共同确定SSB块索引(block index),用于识别不同的SSB。具体的SSB的块索引的确定方法为本领域普通技术人员所熟知,不再赘述。在NR中,同步信号的传输是采用波束扫描的方式进行传输的。网络设备会在一个周期内发送多个SSB,每个SSB覆盖一定区域,每个SSB均在协议定义的SSB候选(candidates)位置进行发送。所有SSB candidates位于一个半帧内(5毫秒),集中在一个半帧内发送的 SSB形成一个SSB簇集合(SSB burst set)。本申请中,SSB candidates位置是指时域的符号位置,以下不再赘述。
邻区发送的SSB会周期性重复,且周期大小可配置,SSB周期的可能值可以为:5毫秒(millisecond,ms)、10ms、20ms、40ms、80ms或160ms。对于用于终端接入的SSB,周期的典型值为20ms。
如图2所示,终端所在的服务小区有两个邻小区,为邻小区1和邻小区2。邻小区1和邻小区2的SSB周期均为20ms。邻小区1和邻小区2发送SSB的半帧在时域上的不同位置。终端的测量间隙的周期为40ms。终端的测量间隙只能覆盖邻小区2发送SSB的半帧,并没有覆盖邻小区1发送SSB的半帧,这样,终端在测量间隙内就无法测量到邻小区1的SSB,只能测量到邻小区2的SSB。
下面对本申请实施例提供的测量间隙的配置方法的过程进行详细说明。本申请提供的方法旨在期望保证终端能够测量所有邻区的参考信号,或者使得终端能够尽量测量到更多邻区的参考信号。
如图3所示,本申请实施例提供的测量间隙的配置方法如下所述。
S301、网络设备向终端发送配置信息,终端接收来自网络设备的配置信息。
配置信息是用于配置测量间隙的相关参数。这里可以理解为服务小区向终端发送配置信息,终端接收来自服务小区的该配置信息。
配置信息中可以包括测量间隙的间隔,该测量间隙的间隔是指,在一次测量后经过该测量间隙的间隔继续下一次的测量。每一次的测量均在测量间隙内发生。
本申请针对测量间隙的间隔(gap-interval)进行设计,通过该设计期望能够使得终端测量到更多邻区的参考信号。假设终端所在服务小区的邻区发送参考信号的周期为第一周期,第一周期为一段时长的N倍,邻区在第一周期内发送参考信号集中在该一段时间内,即在第一周期的除该一段时间之外的其它时间内不会发送参考信号。例如,参考信号为SSB,SSB发送集中在半帧内。第一周期为半帧的N倍。第一周期即SSB周期(ssb-period)。SSB周期=5*N毫秒。SSB周期可以是5ms、10ms、20ms、40ms、80ms或160ms,则N的可选值包括1,2,4,8,16,32。
测量间隙的间隔为半帧的M倍,M与N满足以下关系:M与N互质。按照上述N的取值,可以认为M为奇数且M大于1。举例来说,M的取值可以包括:3、5、7、9、11……。即测量间隙的间隔的可选值包括{15ms,25ms,35ms,45ms,55ms…}。
S302、终端根据配置信息,接收来自邻区的参考信号。
终端根据配置信息,每隔一个“间隔”进行一次测量,该“间隔”为测量间隙的间隔。终端在每一次测量时,在测量间隙内接收邻区的参考信号。终端可能在不同次测量过程中,接收来自不同邻区的参考信号。
由于M与N互质,在经过一定数量的间隔后,总能测量所有小区的参考信号。假设终端所在服务小区的邻小区有4个,这4个邻区的SSB周期均为20ms,一个20ms的SSB周期内可以包括4个半帧,即N=4。假设邻区A在第一个半帧上发送SSB,邻区B在第二个半帧上发送SSB,邻区C在第三个半帧上发送SSB,邻区D在第四个半帧上发送SSB。则终端最少能够在4个间隔后测量所有4个邻区的SSB。
下面继续对本申请实施例一些可选的实现方式进行说明。
配置信息中还可以包括测量间隙的周期(gap-period)。测量间隙的周期也可以称为测 量周期。终端周期性地对邻区的参考信号进行接收,或者说终端周期性地对邻区的参考信号进行测量。在一个测量周期内,按照测量间隙的间隔,对邻区的参考信号进行一次或多次测量。具体测量几次,可选的,配置信息中还可以设置测量间隙的个数(gap-num)。例如,测量间隙的个数为G,则在一个测量间隙的周期内,终端按照测量间隙的间隔,对邻区的参考信号进行G次测量。每两次测量之间相邻该测量间隙的间隔。每一次测量在测量间隙内发送。
因为一个参考信号的周期内包括N个半帧,在一个参考信号周期内,最多可有N个邻区发送参考信号的位置两两不同。若想保证终端能够在一个测量间隙的周期内接收所有邻区的参考信号,则可以设置测量间隙的个数不小于N。当然,本申请实施例可以设置测量间隙的个数大于1即可,这样相比于一个测量时隙的周期内只有一个测量间隙来说,也能够测量更多邻区的参考信号。
终端在测量间隙内实际接收参考信号的时长可以小于或等于该测量间隙。也就是说,终端在测量间隙内可以占用整个测量间隙接收参考信号,也可以占用测量间隙的一部分时间来接收参考信号。
终端在测量间隙内实际接收邻区参考信号的时长不小于半帧与参考信号传输时间之和。例如,一个SSB传输时间为4个OFDM符号(4sym),4个OFDM符号占用1ms,则终端在测量间隙内实际接收邻区参考信号的时长不小于6ms。假设终端在测量间隙内占用整个测量间隙接收参考信号,则可以认为测量间隙的时长不小于半帧与参考信号传输时间之和。
可以理解,本申请实施例中一个测量间隙的周期需要不小于测量间隙的间隔与测量间隙的个数的乘积。即gap-period>=gap-interval*gap-num。
本申请实施例中,终端在一个测量间隙的周期内,测量一个频点的信号,该频点上可以有一个或多个邻小区发送参考信号。该频点可以是与服务小区所在的频点相同或不同。一般情况下,当邻小区频点与服务小区频点不同时,才会需要测量间隙的配置。但是本申请实施例不作限定。
在S302之后,还包括S303。
S303、终端还可以向网络设备上报接收到的参考信号的测量结果,比如参考信号的RSRP、RSRQ、或信干燥比等结果。网络设备接收来自终端上报的参考信号的测量结果。
测量结果能够体现邻小区的信号质量。网络设备可以根据接收到的参考信号的测量结果进行后续处理,例如网络设备判断是否触发终端的小区切换。
在一个可能的设计中,在S303之后,还可能包括S304。
S304、网络设备可以根据接收到的测量结果,对测量间隙的配置进行更新。网络设备向终端发送更新的配置信息,终端接收来自网络设备的更新的配置信息,终端按照更新的配置信息接收邻区的参考信号。
更新配置信息可能是对配置信息中的任一或多个参数进行更新。例如更新测量间隙的间隔,更新测量间隙的长度,或更新测量间隙的个数等。这样,网络设备根据终端上报的邻区的测量结果,可以对配置信息进行更新,终端按照更新的配置信息测量,能够更加有效和更加节能。例如,如图4所示,在图3所示步骤的基础上,体现出更新配置信息中的测量间隙的间隔,更新后测量间隙的间隔相比更新前更大。终端在S301接收到网络设备的测量间隙的配置信息后,根据测量间隙的间隔对邻区进行测量。终端在S304接收到网 络设备的更新的配置信息后,根据更新的测量间隙的间隔对邻区进行测量。图4可以看出,测量间隙1~测量间隙n中每两个测量间隙之间的间隔,相比更新后每两个测量间隙之间的间隔小,即,在更新配置信息后,终端按照更大的间隔测量邻区。若终端按照更大的间隔测量参考信号,不仅能够达到测量更多甚至全部邻区的参考信号的效果,还能够节省终端的能耗。当然,网络设备也可以按照接收的测量结果,配置更小的间隔。
可选的,配置信息的可能的表现形式如下所示:
Figure PCTCN2021078952-appb-000001
其中,GapConfig为测量间隙配置信息;ENUMERATED标识枚举类型。mgl表示测量间隙的长度,ms1dot5表示1.5毫秒;mgrp表示测量间隙的周期,枚举值包括40毫秒、80毫秒等值;mgnum表示一个测量间隙的周期包括的测量间隙的个数;mginterval表示测量间隙的间隔;mgta表示测量间隙提前量,枚举值包括0毫秒、0.25毫秒,0.5毫秒。
可以看出,测量间隙的配置信息中并没有包括间隙偏移值(gapoffset),常规的配置信息通过gapoffset能够确定测量间隙的开始位置,但是通过该参数只能在一个周期内实现一次测量。本申请实施例能够在一个周期内有多个测量间隙,因此通过测量间隙的间隔可以实现多个测量间隙的配置。一般来说第一个测量间隙在一个周期的起始位置,例如0帧中0子帧的0时隙。
结合上述方法,以下通过一个举例来对比常规配置方法与本申请的配置方法的区别。
假设终端所在服务小区的邻小区有4个,分别为小区1、小区2、小区3和小区4。这4个邻区的SSB周期均为20ms,一个20ms的SSB周期内可以包括4个半帧,即N=4。假设小区1在第一个半帧上发送SSB,小区2在第二个半帧上发送SSB,小区3在第三个半帧上发送SSB,小区4在第四个半帧上发送SSB。
以下表1和表2中,一个格子表示一个半帧,1表示对应的小区在该半帧上发送SSB,0表示对应小区在该半帧上不发送SSB。
如表1所示,常规方式下,假设测量间隙的周期为40ms,则终端在每个周期内只能接收到小区1的SSB。而且无论测量间隙的周期如何设置,终端在每个周期内也只能接收到一个小区的SSB。黑色底色表示终端能够在该半帧上接收到相应小区的SSB。
表1
Figure PCTCN2021078952-appb-000002
如表2所示,假设测量间隙的周期为160ms,测量间隙的间隔为15ms,一个测量间隙的周期内包括的测量间隙的个数为8。则本次测量与下次测量之间的间隔为15ms。则终端最短能够在50ms(包括4个测量间隙)内测量4个邻区的SSB。并且在一个测量间隙的周期内,可能对同一个邻区测量多次,使得测量更加准确。终端也可以在一个测量间隙的周期内,只接收一遍所有邻区的参考信号,这样有助于节省终端能耗。
表2
Figure PCTCN2021078952-appb-000003
需要说明的是,本申请中的各个应用场景中的举例仅仅表现了一些可能的实现方式,是为了对本申请的方法更好的理解和说明。本领域技术人员可以根据申请提供的侧行链路 通信方法,得到一些演变形式的举例。
上述本申请提供的实施例中,从终端的角度和网络设备的角度以及终端和网络设备交互的角度,对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能,终端或网络设备可以包括硬件结构和/或软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行,取决于技术方案的特定应用和设计约束条件。
如图5所示,基于同一技术构思,本申请实施例还提供了一种通信装置500,该通信装置500可以是终端或网络设备,也可以是终端或网络设备中的装置,或者是能够和终端或网络设备匹配使用的装置。一种设计中,该通信装置500可以包括执行上述方法实施例中终端执行的方法/操作/步骤/动作所一一对应的模块,该模块可以是硬件电路,也可是软件,也可以是硬件电路结合软件实现。一种设计中,该通信装置500可以包括处理模块501和通信模块502。处理模块501用于调用通信模块502执行接收和/或发送的功能。
当通信装置500用于执行终端所执行的操作时:
处理模块501,用于获取配置信息,例如处理模块用于通过通信模块接收来自网络设备的配置信息。其中,所述配置信息包括测量间隙的间隔,所述测量间隙的间隔为半帧的M倍,所述终端所在服务小区的邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数。
通信模块502用于根据所述配置信息在所述测量间隙内接收来自所述邻区的参考信号。
当通信装置500用于执行网络设备所执行的操作时:
处理模块501,用于生成配置信息,其中,所述配置信息包括测量间隙的间隔,所述测量间隙用于终端测量所述终端所在服务小区的邻区的参考信号,所述测量间隙的间隔为半帧的M倍,所述邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数;
通信模块502,用于向所述终端发送所述配置信息。
通信模块502还用于执行上述方法实施例中终端或网络设备执行的其它接收或发送的步骤或操作。处理模块501还可以用于执行上述方法实施例终端或网络设备执行的除收发之外的其它对应的步骤或操作,在此不再一一赘述。
本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,另外,在本申请各个实施例中的各功能模块可以集成在一个处理器中,也可以是单独物理存在,也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。
如图6所示为本申请实施例提供的通信装置600,用于实现上述方法中终端或网络设备的功能。该通信装置可以是终端或网络设备,也可以是终端或网络设备中的装置,或者是能够和终端或网络设备匹配使用的装置。其中,该通信装置600可以为芯片***。本申请实施例中,芯片***可以由芯片构成,也可以包含芯片和其他分立器件。通信装置600包括至少一个处理器620,用于实现本申请实施例提供的方法中终端或网络设备的功能。通信装置600还可以包括通信接口610。在本申请实施例中,通信接口可以是收发器、电 路、总线、模块或其它类型的通信接口,用于通过传输介质和其它设备进行通信。例如,通信接口610用于通信装置600中的装置可以和其它设备进行通信。
示例性地,当通信装置600用于执行终端所执行的操作时:
处理器620用于利用通信接口610获取配置信息,其中,所述配置信息包括测量间隙的间隔,所述测量间隙的间隔为半帧的M倍,所述终端所在服务小区的邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数;处理器620还用于利用通信接口610,根据所述配置信息在所述测量间隙内接收来自所述邻区的参考信号。
当通信装置600用于执行网络设备所执行的操作时:
处理器620,用于生成配置信息;配置信息包括测量间隙的间隔,所述测量间隙用于终端测量所述终端所在服务小区的邻区的参考信号,所述测量间隙的间隔为半帧的M倍,所述邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数。
通信接口610,用于向终端发送该配置信息。
处理器620和通信接口610还可以用于执行上述方法实施例终端或网络设备执行的其它对应的步骤或操作,在此不再一一赘述。
通信装置600还可以包括至少一个存储器630,用于存储程序指令和/或数据。存储器630和处理器620耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接,可以是电性,机械或其它的形式,用于装置、单元或模块之间的信息交互。处理器620可能和存储器630协同操作。处理器620可能执行存储器630中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
本申请实施例中不限定上述通信接口610、处理器620以及存储器630之间的具体连接介质。本申请实施例在图6中以存储器630、处理器620以及通信接口610之间通过总线650连接,总线在图6中以粗线表示,其它部件之间的连接方式,仅是进行示意性说明,并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图6中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
通信装置500和通信装置600具体是芯片或者芯片***时,通信模块502和通信接口610所输出或接收的可以是基带信号。装置500和装置600具体是设备时,通信模块1202和通信接口610所输出或接收的可以是射频信号。
在本申请实施例中,处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中,存储器630可以是非易失性存储器,比如硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD)等,还可以是易失性存储器(volatile memory),例如随机存取存储器(random-access memory,RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。 本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置,用于存储程序指令和/或数据。
本申请上述方法实施例描述的终端所执行的操作和功能中的部分或全部,可以用芯片或集成电路来完成。
为了实现上述图5或图6所述的通信装置的功能,本申请实施例还提供一种芯片,包括处理器,用于支持该通信装置实现上述方法实施例中终端所涉及的功能。在一种可能的设计中,该芯片与存储器连接或者该芯片包括存储器,该存储器用于保存该通信装置必要的程序指令和数据。
本申请实施例提供了一种计算机可读存储介质,存储有计算机程序,该计算机程序包括用于执行上述方法实施例的指令。
本申请实施例提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述方法实施例。
本领域内的技术人员应明白,本申请的实施例可提供为方法、***、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然,本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样,倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (20)

  1. 一种测量间隙的配置方法,其特征在于,包括:
    终端接收来自网络设备的配置信息,其中,所述配置信息包括测量间隙的间隔,所述测量间隙用于所述终端测量所述终端所在服务小区的邻区发送的参考信号,所述测量间隙的间隔为半帧的M倍,所述终端所在服务小区的邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数;
    所述终端根据所述配置信息,每隔所述测量间隙的间隔,在一个测量间隙内接收来自所述邻区的参考信号。
  2. 如权利要求1所述的方法,其特征在于,所述配置信息还包括以下任意一项或多项:所述测量间隙的周期、所述测量间隙的长度、或一个所述测量间隙的周期包括的测量间隙的个数。
  3. 如权利要求2所述的方法,其特征在于,所述测量间隙的个数不小于N。
  4. 如权利要求2或3所述的方法,其特征在于,所述测量间隙的个数为N的整数倍。
  5. 如权利要求2~4任一项所述的方法,其特征在于,所述测量间隙的长度不小于半帧的长度与一个参考信号的传输时长之和。
  6. 如权利要求1~5任一项所述的方法,其特征在于,还包括:
    所述终端接收来自所述网络设备的更新后的配置信息,所述更新后的配置信息包括更新的测量间隙的间隔;
    所述终端根据所述更新后的配置信息,每隔所述更新的测量间隙的间隔,在一个测量间隙内接收来自所述邻区的参考信号。
  7. 如权利要求1~6任一项所述的方法,其特征在于,所述参考信号包括同步信号/广播信号块SSB。
  8. 一种测量间隙的配置方法,其特征在于,包括:
    网络设备生成配置信息,其中,所述配置信息包括测量间隙的间隔,所述测量间隙用于终端测量所述终端所在服务小区的邻区发送的参考信号,所述测量间隙的间隔为半帧的M倍,所述邻区发送参考信号的周期为第一周期,所述第一周期为半帧的N倍,所述邻区发送的所有参考信号的候选位置位于所述第一周期的一个半帧内,所述M与所述N互质,M、N为正整数;
    所述网络设备向所述终端发送所述配置信息。
  9. 如权利要求8所述的方法,其特征在于,所述配置信息还包括以下任意一项或多项:所述测量间隙的周期、所述测量间隙的长度、或一个所述测量间隙的周期包括的测量间隙的个数。
  10. 如权利要求9所述的方法,其特征在于,所述测量间隙的个数不小于N。
  11. 如权利要求9或10所述的方法,其特征在于,所述测量间隙的个数为N的整数倍。
  12. 如权利要求8~11任一项所述的方法,其特征在于,所述测量间隙的长度不小于半帧的长度与一个参考信号的传输时长之和。
  13. 如权利要求8~12任一项所述的方法,其特征在于,还包括:
    所述网络设备更新所述配置信息,其中,更新后的配置信息包括更新的测量间隙的间 隔;
    所述网络设备将更新后的配置信息发送给所述终端。
  14. 如权利要求8~13任一项所述的方法,其特征在于,所述参考信号包括同步信号/广播信号块SSB。
  15. 一种通信装置,其特征在于,所述装置用于执行如权利要求1~7任一项所述的方法。
  16. 一种通信装置,其特征在于,所述装置用于执行如权利要求8~14任一项所述的方法。
  17. 一种通信装置,其特征在于,包括:处理器,所述处理器与存储器耦合,所述存储器用于存储程序或指令,当所述程序或指令被所述处理器执行时,使得所述装置执行如权利要求1~7任一项所述的方法。
  18. 一种通信装置,其特征在于,包括:处理器,所述处理器与存储器耦合,所述存储器用于存储程序或指令,当所述程序或指令被所述处理器执行时,使得所述装置执行如权利要求8~14任一项所述的方法。
  19. 一种通信***,其特征在于,包括如权利要求15所述的通信装置和如权利要求16所述的通信装置;或者
    包括如权利要求17所述的通信装置和如权利要求18所述的通信装置。
  20. 一种计算机可读存储介质,其特征在于,所述计算机存储介质中存储有计算机可读指令,当所述计算机可读指令在通信装置上运行时,如权利要求1~7任一项所述的方法被执行或者如权利要求8~14任一项所述的方法被执行。
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