WO2020220365A1 - Procédé de communication et appareil de communication - Google Patents
Procédé de communication et appareil de communication Download PDFInfo
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- WO2020220365A1 WO2020220365A1 PCT/CN2019/085392 CN2019085392W WO2020220365A1 WO 2020220365 A1 WO2020220365 A1 WO 2020220365A1 CN 2019085392 W CN2019085392 W CN 2019085392W WO 2020220365 A1 WO2020220365 A1 WO 2020220365A1
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- signal
- timeoffset
- frequency domain
- narrowband
- indication information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- This application relates to the communication field, and more specifically, to a communication method and communication device in the communication field.
- LTE-A long term evolution-advanced
- UE user equipment
- eMTC enhanced machine type communication
- FeMTC FeMTC
- eFeMTC additional MTC
- AMTC advanced machine type communication
- the eMTC system and its evolution system use the primary synchronization signal (PSS) and the secondary synchronization signal (SSS) in the LTE system for synchronization. Since the primary synchronization signal and the secondary synchronization signal are relatively sparse in the time domain, the process of using the above two signals to synchronize takes a long time. Therefore, a resynchronization signal (RSS) is introduced, which is a periodic signal. A periodic RSS is added to the synchronization signal, so the synchronization time can be reduced and user power consumption can be saved.
- PSS primary synchronization signal
- SSS secondary synchronization signal
- the synchronization information of the neighboring cell can be obtained by measuring the RSS of the neighboring cell.
- the current RSS configuration requires a large amount of signaling overhead, and the UE usually has more neighboring cells.
- the UE needs to receive the RSS configuration of each neighboring cell. Therefore, the UE receives a heavy signaling burden, which wastes the UE’s power. Consumption.
- the network side needs to send the RSS configuration of these neighboring cells, so the signaling overhead of the network is relatively large, which wastes system resources and power consumption.
- the present application provides a communication method and device, which can reduce the signaling overhead of the first signal.
- a communication method including:
- the first device determines first indication information, which is used to indicate the frequency domain position information of the first signal of the second device, so that the frequency domain position of the first signal can be based on the frequency domain where the second signal is located.
- the location and the first indication information are determined, the first signal is a resynchronization signal of a neighboring cell of the second device, and the second signal is a resynchronization signal of a serving cell of the second device;
- the first device sends the first indication information to the second device.
- the frequency domain position of the first signal can be determined according to the frequency domain position of the second signal and the first indication information, that is, the first indication information is used to indicate that the frequency domain position of the first signal is relative to the second signal.
- the frequency domain position offset of the signal is not indicative of the absolute position of the first signal in the system bandwidth, so that the size of the frequency domain position indication information can be saved, thereby saving system signaling overhead.
- the first indication information used to indicate the frequency domain location information of the first signal of the second device includes:
- the first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, and the first bit state set includes one or more bits Status; or
- the second state set corresponding to the bit of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same or are predefined Yes, the second set of bit states includes one or more bit states.
- the first indication information used to indicate the frequency domain location information of the first signal of the second device includes:
- K bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;
- the remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.
- K bits of the N bits of the first indication information indicate the narrowband number or index where the first signal is located
- the remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband (the lowest RB number in the narrowband, or the RB group number in the narrowband).
- the frequency domain position of the first signal can be based on the first indication information and the first parameter and/or the frequency domain position of the second signal Determined, wherein the first parameter is the interval granularity of the frequency domain position of the first signal;
- the first parameter is k1;
- the first parameter is k2;
- the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1 ⁇ k2.
- the first indication information may include M bits, where 1 bit of the M bits is used to indicate whether the narrowbands of the first signal and the second signal are the same.
- the M-1 bit is used to indicate the position of the first signal in the narrowband.
- the position in the narrowband can be the RB number or the lowest RB number of the first signal in the narrowband, or it can indicate the offset between the position in the narrowband of the first signal and the position in the narrowband of the second signal. It can be an RB number offset or the lowest RB number offset.
- the M-1 bit indicates the narrowband position where the first signal is located (that is, the position of the first narrowband or the narrowband number or the narrowband index)
- M-1 bit indicates the offset between the narrowband position where the first signal is located and the narrowband position where the second signal is located, and the position offset may refer to the offset of the narrowband number or index.
- x bits of the M bits of the first indication information indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located, or the first indication Among the M bits of information, x bits indicate the number of the first narrowband where the first signal is located; the remaining Nx bits in the M bits indicate the frequency of the first signal in the first narrowband. The offset of the frequency domain position and the frequency domain position of the second signal in the second narrow band or the frequency domain position of the first signal in the first narrow band.
- the RB number where the frequency domain position of the lowest PRB of the first signal is located is Q, where Q is k*N+P, where N is an integer greater than or equal to zero, and k is 2, 4, 6, or 8. , P is an integer greater than or equal to zero and less than k.
- a communication method including:
- the second device receives the first indication information sent by the first device, where the first indication information is used to indicate the frequency domain position information of the first signal of the second device, and the first signal is the frequency domain position information of the second device.
- Resynchronization signal of neighboring cells
- the second device determines the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal, and the second signal is the resynchronization of the serving cell of the second device signal;
- the second device measures the first signal according to the frequency domain position where the first signal is located.
- the frequency domain position of the first signal can be determined according to the frequency domain position of the second signal and the first indication information, that is, the first indication information is used to indicate that the frequency domain position of the first signal is relative to the second signal.
- the frequency domain position offset of the signal is not indicative of the absolute position of the first signal in the system bandwidth, so that the size of the frequency domain position indication information can be saved, thereby saving system signaling overhead.
- the first indication information used to indicate the frequency domain location information of the first signal of the second device includes:
- the first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, and the first bit state set includes one or more bits Status; or
- the second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same, the
- the second set of bit states includes one or more bit states.
- the first indication information used to indicate the frequency domain location information of the first signal of the second device includes:
- K bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;
- the remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.
- the second device determines the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal, including :
- the second device determines the frequency domain position of the first signal according to the first indication information, the frequency domain position of the second signal, and a first parameter, where the first parameter is the first parameter. Interval granularity of signal frequency domain position;
- the first parameter is k1;
- the first parameter is k2;
- the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1 ⁇ k2.
- the first indication information may include M bits, where 1 bit of the M bits is used to indicate whether the narrowbands of the first signal and the second signal are the same.
- the M-1 bit is used to indicate the position of the first signal in the narrowband.
- the position in the narrowband can be the RB number or the lowest RB number of the first signal in the narrowband, or it can indicate the offset between the position in the narrowband of the first signal and the position in the narrowband of the second signal. It can be an RB number offset or the lowest RB number offset.
- the M-1 bit indicates the narrowband position where the first signal is located (that is, the position of the first narrowband or the narrowband number or the narrowband index)
- M-1 bit indicates the offset between the narrowband position where the first signal is located and the narrowband position where the second signal is located, and the position offset may refer to the offset of the narrowband number or index.
- x bits of the M bits of the first indication information indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located, or the first indication Among the M bits of information, x bits indicate the number of the first narrowband where the first signal is located; the remaining Nx bits in the M bits indicate the frequency of the first signal in the first narrowband. The offset of the frequency domain position and the frequency domain position of the second signal in the second narrow band or the frequency domain position of the first signal in the first narrow band.
- the RB number where the frequency domain position of the lowest PRB of the first signal is located is Q, where Q is k*N+P, where N is an integer greater than or equal to zero, and k is 2, 4, 6, or 8. , P is an integer greater than or equal to zero and less than k.
- a communication method including:
- the first device determines second indication information, where the second indication information is used to indicate the time offset of the first signal of the second device, so that the actual time offset value of the first signal can be based on the time offset and the first signal.
- a time unit and duration are determined, where, when the duration of the first signal is 160 ms, the first time unit is N times a data frame, where N is a positive integer greater than 1, or the first signal
- a time unit is M times the measurement interval period of the second device, where M is a positive integer;
- the first device sends the second indication information to the second device.
- the granularity of the time offset of the first signal in the embodiment of the present application is greater than that in the prior art, and thus can The value range of the time offset is reduced, based on this, the signaling overhead for indicating the time offset can be saved, thereby reducing the system signaling overhead.
- the first time unit is set to an integer multiple of the measurement interval period of the second device, so that when the first device sends the first signal, the second device is always in the state of detecting the first signal. Therefore, in the embodiment of the present application, the second device can measure the first signal, thereby avoiding the waste of signaling and improving system throughput.
- the actual time offset value of the first signal is determined according to the time offset, the first time unit, the duration, and the second parameter, where The second parameter is determined according to the synchronization state between the serving cell of the second device and the neighboring cell of the second device.
- the second parameter to correct the time offset value or the actual time offset value, the time difference introduced by asynchronous can be eliminated, so that the second device can detect the first signal, thereby avoiding The waste of signaling improves system throughput.
- the actual time offset value of the first signal is timeoffset*K*frames, where timeoffset takes a value
- the range is 0 ⁇ 1, K is 8, or the value range of timeoffset is 0 ⁇ 3, K is 4, or the value range of timeoffset is 0 ⁇ 7, K is 2, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 8, or the value range of timeoffset is 0 ⁇ 7, K is 4, or the range of timeoffset is 0 ⁇ 15, K is 2, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 16, or the value range of timeoffset is 0 ⁇ 7, K is 8, or the range of timeoffset is 0 ⁇ 15, K is 4, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 32, or the value range of timeoffset is 0 ⁇ 7, K is 16, or the range of timeoffset is 0 ⁇ 15, K is 8, where K*frames is the first time unit;
- the timeoffset represents the time offset
- the frames represents the length of the data frame.
- a communication method including:
- the second device receives second indication information sent by the first device, where the second indication information is used to indicate the time offset of the first signal of the second device;
- the second device determines the actual time offset value of the first signal according to the time offset, the first time unit and the duration value, wherein, when the duration of the first signal is 160 ms, the first signal A time unit is N times of a data frame, where N is a positive integer greater than 1;
- the second device measures the first signal according to the actual time offset value of the first signal.
- the granularity of the time offset of the first signal in the embodiment of the present application is greater than that in the prior art, and thus can The value range of the time offset is reduced, based on this, the signaling overhead for indicating the time offset can be saved, thereby reducing the system signaling overhead.
- the first time unit is set to an integer multiple of the measurement interval period of the second device, so that when the first device sends the first signal, the second device is always in the state of detecting the first signal. Therefore, in the embodiment of the present application, the second device can measure the first signal, thereby avoiding the waste of signaling and improving system throughput.
- the second device determines the actual time offset value of the first signal according to the time offset, the first time unit, and the duration value ,include:
- the second device determines the actual time offset value of the first signal according to the time offset, the first time unit, the duration value, and a second parameter, where the second parameter is Determined according to the synchronization state between the serving cell of the second device and the neighboring cell of the second device.
- the second parameter to correct the time offset value or the actual time offset value, the time difference introduced by asynchronous can be eliminated, so that the second device can detect the first signal, thereby avoiding The waste of signaling improves system throughput.
- the actual time offset value of the first signal is timeoffset*K*frames, where timeoffset takes a value
- the range is 0 ⁇ 1, K is 8, or the value range of timeoffset is 0 ⁇ 3, K is 4, or the value range of timeoffset is 0 ⁇ 7, K is 2, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 8, or the value range of timeoffset is 0 ⁇ 7, K is 4, or the range of timeoffset is 0 ⁇ 15, K is 2, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 16, or the value range of timeoffset is 0 ⁇ 7, K is 8, or the range of timeoffset is 0 ⁇ 15, K is 4, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 32, or the value range of timeoffset is 0 ⁇ 7, K is 16, or the range of timeoffset is 0 ⁇ 15, K is 8, where K*frames is the first time unit;
- the timeoffset represents the time offset
- the frames represents the length of the data frame.
- a communication device in a fifth aspect, includes a unit for executing each step in the method in any possible implementation manner of the first to fourth aspects or the first to fourth aspects.
- a communication device which includes a transceiver, a memory, and a processor.
- the transceiver, the memory, and the processor communicate with each other through an internal connection path
- the memory is used to store instructions
- the processor is used to execute the instructions stored in the memory to control the receiver to receive signals and control the transmitter to send signals
- the execution causes the processor to execute the method in any one of the first aspect to the fourth aspect or any one of the first aspect to the fourth aspect.
- a communication system which includes the device provided in the fifth aspect and the device provided in the sixth aspect.
- a computer program product includes a computer program.
- the computer program product includes a computer program.
- the computer program is executed by a processor, it is used to execute any of the first to fourth aspects or the first to fourth aspects. The method in the implementation.
- a computer-readable storage medium stores a computer program. When the computer program is executed, it is used to execute the first to fourth aspects or the first to fourth aspects. The method in any possible implementation of the aspect.
- Figure 1 is a schematic diagram of a communication system suitable for the present application.
- Fig. 2 is a schematic flowchart of a communication method provided by an embodiment of the present application.
- Fig. 3 is a schematic diagram of possible frequency domain positions of the first signal in the narrow band.
- Fig. 4 shows a schematic flowchart of a communication method provided by an embodiment of the present application.
- Fig. 5 shows a schematic diagram of RSS measurement in the prior art.
- Fig. 6 shows a schematic block diagram of a communication device provided by an embodiment of the present application.
- Fig. 7 shows a schematic block diagram of another communication device provided by an embodiment of the present application.
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access
- 5G 5th Generation
- NR New Radio
- the communication system is, for example, V2X, LTE-V, V2V, Internet of Vehicles, MTC, IoT, LTE-M, M2M, Internet of Things, etc.
- FIG. 1 is a schematic diagram of a communication system suitable for this application.
- the communication system includes a network device 110, a terminal device 120, a terminal device 130, a terminal device 140, a terminal device 150, a terminal device 160, and a terminal device 170. These terminal devices communicate with the network device 110 through a wireless link. As an example, it is possible to communicate with the network device 110 through electromagnetic waves.
- the network device 110 may send signaling and/or data to one or more of the above-mentioned 6 terminal devices.
- the terminal device 150, the terminal device 160, and the terminal device 170 can also form a communication system in which the terminal device 160 can send signaling and/or data to one or two of the terminal device 150 and the terminal device 170 That is to say, the embodiments of the present application can be applied not only to the communication between the terminal device and the network device, but also to the communication between the terminal device and the terminal device.
- the aforementioned multiple terminal devices may refer to user equipment, access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication equipment, User agent or user device.
- the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or future evolution of the public land mobile network (PLMN) Terminal equipment, etc., this embodiment of the present application does not limit this.
- SIP session initiation protocol
- WLL wireless local loop
- PDA personal digital assistant
- PLMN public land mobile network
- the network device 110 may be a base station defined by 3GPP, for example, a base station (gNB) in a 5G communication system.
- the network device 110 may also be a non-3GPP (non-3GPP) access network device, such as an access gateway (AGW).
- the network device 110 may also be a relay station, an access point, a vehicle-mounted device, a wearable device, and other types of devices.
- the communication system 100 is only an example, and the communication system applicable to the present application is not limited to this.
- the number of network devices and terminal devices included in the communication system 100 may also be other numbers.
- the configuration of each RSS needs to be notified using 18-bit (bit) signaling.
- bit 18-bit
- the frequency location is used to indicate the frequency domain location of the lower RB among the two consecutive RBs occupied by the RSS or the RB number where the lowest RB is located.
- the system bandwidth is 20M, and the 20M system bandwidth includes 100 RBs. Therefore, there are 99 possible situations in the system bandwidth for the positions of 2 consecutive RBs occupied by RSS, that is, the position of the 2 consecutive RBs.
- the bit status corresponding to 7bit is required (there are 128 bit statuses corresponding to 7bit in total, 99 of which can be used) to indicate the status of the lower RB in the system bandwidth.
- the location in the frequency domain causes a large signaling overhead for the RSS configuration.
- the network device When the terminal device needs to measure the RSS of the neighboring cell, the network device needs to indicate the frequency domain position of the RSS of the neighboring cell to the terminal device.
- terminal equipment has many neighboring cells, and the terminal equipment needs to receive the RSS configuration of each neighboring cell, which will cause a heavy burden on the terminal equipment to receive signaling.
- the network side needs to send the RSS configuration of these neighboring cells, which results in large network signaling overhead and wastes system resources and power consumption.
- the embodiment of the present application provides a communication method, which can reduce the signaling overhead of configuring RSS.
- Fig. 2 shows a schematic flowchart of a communication method provided by an embodiment of the present application.
- the communication method in FIG. 2 can be applied to the communication system in FIG. 1.
- the network device may be an example of the first device
- the terminal device may be an example of the second device.
- the terminal device may be any one of the terminal devices described in FIG. 1, but the implementation of this application The example is not limited to this, for example, the first device may also be a terminal device.
- the first device may be a device with sending capability
- the second device may be a device with receiving capability
- the network device determines first indication information, where the first indication information is used to indicate the frequency domain position information of the first signal of the terminal device, so that the frequency domain position of the first signal can be based on the frequency domain where the second signal is located. The location and the first indication information are determined.
- the first signal is a resynchronization signal RSS of a neighboring cell of the terminal device
- the second signal is a resynchronization signal RSS of a serving cell of the terminal device.
- the first indication information may indicate the offset of the frequency domain position of the first signal relative to the frequency domain position of the second signal. In this way, the frequency domain position of the first signal can be determined according to the frequency domain position of the second signal and the offset.
- the frequency domain position of the first signal can be determined according to the frequency domain position of the second signal and the first indication information, that is, the first indication information is used to indicate that the frequency domain position of the first signal is relative to the second signal.
- the frequency domain position offset of the signal is not indicative of the absolute position of the first signal in the system bandwidth, so that the size of the frequency domain position indication information can be saved, thereby saving system signaling overhead.
- the first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located
- the first bit state set includes one Or multiple bit states. That is, in the embodiment of the present application, the above-mentioned bit state may be used to indicate the frequency domain position of the first signal in the narrowband where the second signal is located. Wherein, the narrowband of the first signal and the second signal are the same.
- the first indication information may include 2 bits, and the first bit state set corresponding to the 2 bits includes 3 bit states, which are 00, 01, and 10 respectively.
- the first indication information may include 3 bits, and the first bit state set corresponding to the 3 bits includes 8 bit states, which are respectively 000, 001, 010, 011, 100, 101, 110, and 111.
- the system bandwidth can be divided into several narrowbands, and each narrowband occupies several RBs.
- the system bandwidth can be divided into 16 narrowbands, and each narrowband includes 6 RBs.
- every two consecutive RB groups form an RB group with an index (index) i.
- index index
- any two RB groups do not include the same RB.
- the RB groups can be numbered according to certain rules.
- the rule may be configured for the network device, for example, according to the order of RB numbers from small to large or from large to small.
- Fig. 3 shows a schematic diagram of possible frequency domain positions of the first signal in a narrow band.
- the first signal occupies 2 consecutive RBs. Therefore, there may be 3 non-overlapping allocation modes for the first signal in a narrow band. For example, in mode 1, the first signal occupies the first 2 RBs in a narrowband, in mode 2, the first signal occupies the middle 2 RBs in a narrowband, and in mode 4, the first signal occupies the last 2 RBs in a narrowband. RB.
- the first two RB groups in a narrowband can be numbered as 0, the middle two RB groups are numbered as 1, and the last two RB groups are numbered as 3.
- FIG. 3 is only used as an example, showing possible frequency-domain positions of the first signal in the narrowband, but the embodiment of the present application is not limited thereto.
- the first signal can also have 5 overlapping allocation modes in the first narrowband.
- mode 1 occupies the first RB and the second RB in a narrowband
- mode 2 occupies the second RB in a narrowband
- the third RB and so on.
- the first indication information indicates The first signal and the second signal have the same narrowband, and the frequency domain indicator value in the narrowband of the first signal is q1, which is the offset of the frequency domain position of the first signal in the narrowband relative to the frequency domain position of the second signal in the narrowband
- the quantity is q1.
- the first indication information indicates that the narrowbands of the first signal and the second signal are the same, and the frequency domain position within the narrowband of the first signal is q1, where q1 is the RB number or index where the lowest RSS of the first signal is located. , Or q1 is the number or index of the RB group.
- the position of the first signal in the narrowband is r1+q1, which is not limited in the embodiment of the present application.
- Table 1 shows an example of the first bit state set corresponding to the bit of the first indication information.
- the first indication information has 2 bits.
- the second state set corresponding to the bit of the first indication information indicates the first narrowband where the first signal is located, and the first signal and the second signal are in the narrowband
- the frequency domain positions of are the same
- the second set of bit states includes one or more bit states. That is to say, in the embodiment of the present application, the above-mentioned bit state may be used to indicate the narrowband where the first signal is located (for example, the offset relative to the narrowband where the second signal is located). Wherein, the position in the narrow band where the first signal and the second signal are located is the same.
- the second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain position of the first signal in the narrowband is predetermined
- the second set of bit states includes one or more bit states. That is to say, in the embodiment of the present application, the above-mentioned bit state may be used to indicate the narrowband where the first signal is located (for example, the offset relative to the narrowband where the second signal is located).
- the first indication information indicates the frequency of the first signal and the second signal in the narrowband.
- the domain position is the same or the frequency domain position of the first signal in the narrowband is predefined or configured at a higher level, the first narrowband value of the first signal is p1 or the bit value used to indicate the first indication information is p1, that is, the first narrowband number is p1.
- the first indication information indicates the frequency of the first signal and the second signal in the narrowband.
- the position of the first narrowband of the first signal is the same, the value of the first narrowband of the first signal is p1 or the value of the bit used to indicate the first indication information is p1, that is, the frequency domain position of the first narrowband of the first signal is relative to the second signal of the second signal.
- the frequency domain position offset of the narrowband is p1.
- the frequency domain position of the first narrowband is: (k1+p1) mod N, where N represents the number of narrowbands that can be used by the first narrowband or the system bandwidth The number of narrowbands included.
- N represents the number of narrowbands that can be used by the first narrowband or the system bandwidth The number of narrowbands included.
- N is 16
- N is 8.
- the position or number of the first narrowband is k1+p1, which is not limited in the embodiment of the present application.
- Table 2 shows an example of the second bit state set corresponding to the bit of the first indication information.
- Bit state The position of the first narrowband 000 k1mod N or k1 001 (k1+1)mod N or (k1+1) 010 (k1+2)mod N or (k1+2) 011 (k1+3)mod N or (k1+3) 100 (k1+4)mod N or (k1+4) 101 (k1+5)mod N or (k1+5) 110 (k1+6)mod N or (k1+6) 111 (k1+7)mod N or (k1+7)
- the first indication information has 3 bits.
- the position of the first signal in the narrowband may be predefined or configured by a network device. This is not limited.
- the first indication information may include M bits, where 1 bit of the M bits is used to indicate whether the narrowbands of the first signal and the second signal are the same.
- the M-1 bit is used to indicate the position of the first signal in the narrowband.
- the position in the narrowband may be the RB number or the lowest RB number in the narrowband of the first signal, and may also indicate the relative position of the second signal.
- M-1 bits can be used to indicate that the frequency domain position within the narrow band of the first signal is q2, that is, the frequency domain position within the narrow band of the first signal is offset from the frequency domain position of the second signal in the narrow band.
- the displacement is q2.
- the position of the first signal in the narrow band is (r2+q2) mod3; or M-1 bits can be used to indicate the position of the first signal
- the frequency domain position in the narrow band is taken as q2, that is, the frequency domain position in the narrow band of the first signal is q2 or the RB group number in the narrow band of the first signal is q2 or the lowest RB number in the narrow band of the first signal is q2 .
- the M-1 bit is used to indicate the narrowband position of the first signal (that is, the position of the first narrowband or the narrowband number or the narrowband index).
- M-1 bits can be used to indicate that the first narrowband position is p2, that is, the offset of the first narrowband position relative to the second narrowband is p2, the number of the second narrowband is k2, and the system bandwidth includes N narrowbands ,
- the frequency domain position of the first narrowband is: (k2+p2) mod N; or M-1 bits can be used to indicate that the first narrowband position is p2, that is, the first narrowband position is p2 or the first narrowband number is p2 Or the index of the first narrowband is p2.
- M 3, that is, 3 bits of information, where 1 bit (such as high-order bits) is used to indicate whether the narrowband positions of the first signal and the second signal are the same.
- 1 bit such as high-order bits
- the first signal and the second signal are in the same narrow band, and the remaining 2 bits of the 3 bits are used to indicate the position of the first signal in the narrow band.
- the position in the narrow band can be in the RB group.
- the position in the narrowband can be the number of the lowest RB in the narrowband, or the position in the narrowband is the offset of the first signal relative to the position of the second signal in the narrowband (for example, when the first signal is in the narrowband
- the positions of the first signal and the second signal in the narrowband are the same, or the positions of the first signal and the narrowband are predefined or configured by higher layers, and the remaining 2 bits indicate the first signal
- the number of the narrowband where a signal is located or the index of the narrowband where the second signal is located or the offset of the narrowband where the first signal is located relative to the narrowband where the second signal is located is (P+Q)modN, where Q
- the narrowband number of the second signal, P is the offset
- N is the number of narrowbands included in the system bandwidth.
- the first state can be 0 and the second state is 1; or the first state is 1 and the second state is 0.
- x bits of the M bits of the first indication information indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located
- the x bits in the M bits of the first indication information indicate the number of the first narrowband where the first signal is located
- the remaining Nx bits in the M bits indicate that the first signal is in the An offset between the frequency domain position in the first narrow band and the frequency domain position of the second signal in the second narrow band or the frequency domain position of the first signal in the first narrow band.
- 2 bits in the first indication information are used to indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located, and the remaining 2 bits are To indicate the offset of the frequency domain position of the first signal in the first narrow band and the frequency domain position of the second signal in the second narrow band.
- 2 bits can be used to indicate that the first narrowband position is p3, that is, the offset of the first narrowband position relative to the second narrowband is p3, the number of the second narrowband is k3, and the system bandwidth includes N narrowbands.
- the frequency domain position of a narrowband is: (k3+p3) mod N; the remaining 2 bits can be used to indicate the frequency domain position within the narrowband of the first signal.
- the value is q3, that is, the frequency domain position within the narrowband of the first signal
- the offset relative to the frequency domain position of the second signal in the narrow band is q3.
- the frequency domain position (for example, number) of the second signal in the narrow band is r3, the position of the first signal in the narrow band is (r3+q3) mod3.
- the x bits in the M bits of the first indication information indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located, and the remainder of the M bits
- the Nx bits indicate the frequency domain position of the first signal in the first narrowband.
- the N-x bit is used to indicate the absolute position of the first signal in the narrow band, that is, it is not an offset relative to the frequency domain position of the second signal in the second narrow band.
- the N-x bits may indicate the number of the lowest RB of the first signal in the first narrowband.
- the frequency domain position of the first signal can be determined according to the first indication information and the first parameter and/or the frequency domain position of the second signal;
- the first parameter is y1;
- the first parameter is y2;
- the element in the first bandwidth set is smaller than the element in the second bandwidth set, y1 ⁇ y2.
- the first parameter may be understood as the interval granularity of the frequency domain position of the first signal.
- the first narrowband number of the first signal or the lowest RB number (index) of the first signal, or the RB group number of the first signal can be expressed as:
- k represents the narrowband number where the second signal is located, or the lowest RB number (index) of the second signal, or the frequency position of the RB group number of the second signal, or 0, and P is the first indicator indicated by the first indicator.
- Y represents the first parameter
- N represents the number of narrowbands or the number of RBs or the number of RB groups that can be used by the first narrowband, or the number of narrowbands included in the system bandwidth.
- the frequency domain position of the first signal can be determined according to the first indication information and the first parameter.
- the first narrowband number of the first signal, or the lowest RB number (index) of the first signal, or the RB group number of the first signal is k+P*Y, where k represents the narrowband number where the second signal is located, or the first The lowest RB number (index) of the second signal, or the frequency position of the RB group number of the second signal, or 0, P is the value of the frequency domain position of the first narrowband indicated by the first indication information, and Y represents the first A parameter, which is not limited in the embodiment of this application.
- the frequency domain position of the first signal can be determined according to the first indication information and the first parameter.
- the first narrowband number of the first signal, or the lowest RB number (index) of the first signal, or the RB group number of the first signal is P*Y, where P is the frequency domain of the first narrowband indicated by the first indication information
- the value of the position, Y represents the first parameter.
- the first parameter is y1;
- the first parameter is y2;
- the element in the first bandwidth set is smaller than the element in the second bandwidth set, y1 ⁇ y2.
- the first parameter may be understood as the interval granularity of the frequency domain position of the first signal.
- Table 3 shows an example of the third bit state set corresponding to the bit of the first indication information.
- Bit state The frequency domain position of the first signal 00 k4mod N or k4 01 (k4+1*Y1)mod N or (k4+1*Y1) 10 (k4+2*Y1)mod N or (k4+2*Y1) 11 (k4+3*Y1)mod N or (k4+3*Y1)
- the first parameter is Y1
- its possible values are 1, or 2, or 4, or 8, or 16
- k4 represents the narrowband number where the second signal is located, or the lowest RB number (index) of the second signal, Or the frequency position of the RB group number of the second signal, or 0,
- N represents the number of narrowbands or the number of RBs or the number of RB groups that can be used by the first narrowband, or the number of narrowbands included in the system bandwidth.
- the first parameter Y1 is determined according to the channel bandwidth (that is, the system bandwidth).
- Table 4 shows an example of system bandwidth. Table 4 shows the possible values of Y1 for different channel bandwidths.
- the first value ⁇ the second value ⁇ the third value ⁇ the fourth value ⁇ the fifth value ⁇ the sixth value.
- Table 5 shows possible values of the first value to the sixth value.
- Table 6 shows an example of the fourth bit state set corresponding to the bit of the first indication information.
- Bit state The frequency domain position of the first signal 000 k5mod N or k 001 (k5+1*Y2)mod N or (k5+1*Y2) 010 (k5+2*Y2)mod N or (k5+2*Y2) 011 (k5+3*Y2)mod N or (k5+3*Y2) 100 (k5+4*Y2)mod N or (k5+4*Y2) 101 (k5+5*Y2)mod N or (k5+5*Y2) 110 (k5+6*Y2) mod N or (k5+6*Y2) 111 (k5+7*Y2)mod N or (k5+7*Y2)mod N or (k5+7*Y2)
- the possible value of the first parameter Y2 is 1, or 2, or 4, or 8, or 16.
- k5 represents the narrowband number of the second signal, or the lowest RB number (index) of the second signal, or the frequency position of the RB group number of the second signal, or 0,
- N represents the number of narrowbands that can be used by the first narrowband Either the number of RBs or the number of RB groups, or the number of narrowbands included in the system bandwidth.
- Y2 is determined based on the system bandwidth.
- Table 7 shows the possible values of Y2 for different channel bandwidths.
- the first value ⁇ the second value ⁇ the third value ⁇ the fourth value ⁇ the fifth value ⁇ the sixth value.
- Table 8 shows possible values of the first value to the sixth value.
- Table 9 shows an example of the fourth bit state set corresponding to the bit of the first indication information.
- Bit state The position of the first signal in the frequency domain 0000 k6mod N or 0001 (k6+1*Y3)mod N or (k6+1*Y3) 0010 (k6+2*Y3)mod N or (k6+2*Y3) 0011 (k6+3*Y3)mod N or (k6+3*Y3) 0100 (k6+4*Y3)mod N or (k6+4*Y3) 0101 (k6+5*Y3)mod N or (k6+5*Y3) 0110 (k6+6*Y3)mod N or (k6+6*Y3) 0111 (k6+7*Y3)mod N or (k6+7*Y3) 1000 (k6+8*Y3)mod N or (k6+8*Y3) 1001 (k6+9*Y3)mod N or (k6+9*Y3) 1010 (k6+10*Y3)mod N or (k6+10*Y3) 1011 (k6+11*Y3)mod N or (k6+11*Y3) 1100 (k
- the possible value of the first parameter Y3 is 1, or 2, or 4, or 6.
- k6 represents the narrowband number of the second signal, or the lowest RB number (index) of the second signal, or the frequency position of the RB group number of the second signal, or 0,
- N represents the number of narrowbands that can be used by the first narrowband Either the number of RBs or the number of RB groups, or the number of narrowbands included in the system bandwidth.
- Y3 is determined according to the channel bandwidth.
- Table 10 shows the possible values of Y2 for different channel bandwidths.
- Table 11 shows possible values of the first value to the sixth value.
- the lowest RB number of the first signal is k*N+q, where N is a positive integer greater than or equal to 0, k is 2, or 4, or 8, or 16, or 32, q Is an integer greater than or equal to 0 and less than k.
- the lowest RB number of the first signal is even or odd, that is, 0,2,4...98 or 1,3,5...97.
- 6 bits are required to indicate the frequency domain position of the first signal, saving signaling overhead .
- the lowest RB number of the first signal is 0, 4, 8,..., 96. At this time, only 5 bits are needed to indicate the frequency domain position of the first signal, which saves signaling overhead.
- the network device sends the first indication information to the terminal device.
- the terminal device receives the first indication information from the network device.
- the terminal device determines the frequency domain position of the first signal according to the first indication information.
- the terminal device may determine the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal.
- the terminal device measures the first signal according to the frequency domain position of the first signal.
- the frequency domain position of the first signal may be the frequency domain position of the lowest RB of the first signal, or the frequency domain position of the highest RB of the first signal.
- the example does not limit this.
- the embodiment of the present application enables the frequency domain position of the first signal to be determined according to the frequency domain position of the second signal and the first indication information, that is, the first indication information is used to indicate that the frequency domain position of the first signal is relative to the second signal.
- the offset of the frequency domain position of the signal instead of indicating the absolute position of the first signal in the system bandwidth, which can save the size of the frequency domain position indication information, thereby saving system signaling overhead, and on the one hand, it can reduce terminal equipment reception The burden of signaling saves the power consumption of terminal equipment. On the other hand, it can save communication system resources and power consumption.
- the time offset (timeOffset) is used to indicate the offset of the time domain of the RSS.
- timeOffset For the time periods of 320ms, 640ms and 1280ms (periodicity), when a data frame (as an example, 10ms) is used as the granularity of the time offset, the value range of the time offset of the RSS (timeOffset) is 0 To 31, the bit state corresponding to 5bit is needed (there are 32 bit states corresponding to 5bit in total) to indicate the value of the time offset. This leads to a large RSS signaling overhead.
- Fig. 4 shows a schematic flowchart of a communication method provided by an embodiment of the present application.
- the communication method in FIG. 4 can be applied to the communication system in FIG. 1.
- the network device may be an example of the first device
- the terminal device may be an example of the second device.
- the terminal device may be any one of the terminal devices described in FIG. 1, but the implementation of this application
- the example is not limited to this, for example, the first device may also be a terminal device.
- the first device may be a device with sending capability
- the second device may be a device with receiving capability.
- the communication method is such that the method includes 410 and 420.
- the network device determines second indication information, where the second indication information is used to indicate the time offset of the first signal of the terminal device (timeoffset), where the actual value of time offset of the first signal offset) is determined according to the time offset, the first time unit, and the duration.
- timeoffset the time offset of the first signal of the terminal device
- the duration can be understood as the period of the first signal.
- the time offset of the first signal may be the time offset of the first signal relative to the measurement interval, that is, the time offset may be the time offset of the measurement interval and the time of the first signal. The difference in offset.
- the actual time offset value of the first signal is an integer multiple of the product of the aforementioned time offset and the first time unit. That is to say, the actual time offset value of the first signal in the embodiment of the present application is indicated with the first time unit as the minimum offset granularity.
- the value range of the time offset is related to the duration of the first signal.
- the duration of the first signal may be the period during which the network device sends the first signal, such as 160 ms, 320 ms, 640 ms, or 1280 ms or others, which is not limited in the embodiment of the present application.
- the duration of the first signal is a first time set, the time offset ranges from 0 to w1, the first time unit is t1, and the first time set includes the duration of one or more first signals.
- the duration of the first signal is a second time set, the time offset ranges from 0 to w2, the first time unit is t2, and the second time set includes the duration of one or more first signals.
- the elements in the first time set are smaller than the elements in the second time set, w1 is less than or equal to w2, and t1 is less than or equal to t2.
- the element in the first time set is smaller than the element in the second time set can be understood as any element in the first combination is smaller than any element in the second time set.
- the product of the maximum value of the time offset (or the maximum value of the applied offset plus 1) and the first time unit is the same as the duration of the first signal.
- the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 20 ms;
- the maximum value of the time offset is 15, that is, the value range of the time offset is 0-15, and the first time unit is 20ms;
- the duration of the first signal is 640ms
- the maximum value of the time offset is 15, that is, the value range of the time offset is 0-15, and the first time unit is 40ms;
- the maximum value of the time offset is 15, that is, the value range of the time offset is 0-15, and the first time unit is 80 ms.
- the embodiment of the present application can save 1 bit of signaling overhead.
- the maximum value of the time offset is 3, that is, the value range of the time offset is 0 to 3, and the first time unit is 40 ms;
- the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 40ms;
- the duration of the first signal is 640ms
- the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 80ms;
- the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 160 ms.
- the embodiment of the present application can save 2 bits of signaling overhead.
- the maximum value of the time offset is 1, that is, the value range of the time offset is 0 to 1, and the first time unit is 80 ms;
- the maximum value of the time offset is 3, that is, the value range of the time offset is 0 ⁇ 3, and the first time unit is 80ms;
- the maximum value of the time offset is 3, that is, the value range of the time offset is 0 to 3, and the first time unit is 160 ms;
- the maximum value of the time offset is 3, that is, the value range of the time offset is 0 to 3, and the first time unit is 160 ms.
- the embodiment of the present application can save 3 bits of signaling overhead.
- the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 20 ms;
- the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 40ms;
- the duration of the first signal is 640ms
- the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 80ms;
- the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 160 ms.
- the embodiment of the present application can save 2 bits of signaling overhead.
- the above-mentioned first time unit is 20ms or 40ms or 80ms or 160ms or 320ms, and it can also be understood that the first time unit is 2*frames or 4*frames or 8*frames or 16*frames or 32*frames. At this time, the length of a frame is 10ms.
- the first time unit is N times a data frame (or frame), where N is a positive integer greater than or equal to 1.
- N may be 2, 4 or 8, which is not limited in the embodiment of the present application.
- the length of a data frame may be 10ms, and the length of the first time unit is 20ms, 40ms, 80ms, etc.
- the length of a data frame is 10ms as an example.
- the data frame can also be other time-domain length units, such as time slots, subframes, symbols, ms, us, or s, etc.
- time slots such as time slots, subframes, symbols, ms, us, or s, etc.
- Table 12 shows an example of the time offset value in the embodiment of the present application.
- the length of the first time unit is 2 data frames.
- the actual time offset value is the product of the time offset (timeoffset) and the first time unit.
- the value range of timeoffset is 0-7. That is, at this time, the offset indication is performed with the granularity of 2 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 2.
- the actual time offset value is the product of the time offset and the first time unit.
- the value range of the time offset is 0-15. That is, at this time, the offset indication is performed with the granularity of 2 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-15, and the value of K is 2.
- the actual time offset value is twice the product of the time offset and the first time unit.
- the value range of the time offset is 0-15. That is, at this time, the offset indication is performed with the granularity of 4 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-15, and the value of K is 4.
- the actual time offset value is 4 times the product of the time offset and the first time unit.
- the value range of the time offset is 0-15. In other words, at this time, the offset indication is performed at the granularity of 8 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-15, and the value of K is 8.
- Table 13 shows another example of the time offset value in the embodiment of the present application.
- Duration Value range of timeoffset Actual value of timeoffset 160ms 0 ⁇ 3 timeoffset*4 frames 320ms 0 ⁇ 7 timeoffset*4 frames 640ms 0 ⁇ 7 timeoffset*2*4 frames 1280ms 0 ⁇ 7 timeoffset*4*4 frames
- the length of the first time unit is 4 data frames.
- the actual time offset value is the product of the time offset (timeoffset) and the first time unit.
- the value range of timeoffset is 0 to 3. That is, at this time, the offset indication is performed with the granularity of 4 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0 to 3, and the value of K is 4.
- the actual time offset value is the product of the time offset and the first time unit.
- the value range of time offset is 0-7. That is, at this time, the offset indication is performed with the granularity of 4 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 4.
- the actual time offset value is twice the product of the time offset and the first time unit.
- the value range of time offset is 0-7. In other words, at this time, the offset indication is performed at the granularity of 8 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 8.
- the actual time offset value is 4 times the product of the time offset and the first time unit.
- the value range of time offset is 0-7. In other words, at this time, 16 data frames are used as the granularity for the offset indication.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 16.
- Table 14 shows another example of the time offset value in the embodiment of the present application.
- Duration Value range of timeoffset Actual value of timeoffset 160ms 0 ⁇ 1 timeoffset*8 frames 320ms 0 ⁇ 3 timeoffset*8 frames 640ms 0 ⁇ 3 timeoffset*2*8frames 1280ms 0 ⁇ 3 timeoffset*4*8 frames
- the length of the first time unit is 8 data frames.
- the actual time offset value is the product of the time offset (timeoffset) and the first time unit.
- the value range of timeoffset is 0 to 1.
- the offset indication is performed at the granularity of 8 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0 to 1, and the value of K is 8.
- the actual time offset value is the product of the time offset and the first time unit.
- the value range of time offset is 0 ⁇ 3.
- the offset indication is performed at the granularity of 8 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0 to 3, and the value of K is 8.
- the actual time offset value is twice the product of the time offset and the first time unit.
- the value range of time offset is 0 ⁇ 3. In other words, at this time, the offset indication is performed with the granularity of 16 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0 to 3, and the value of K is 16.
- the actual time offset value is 4 times the product of the time offset and the first time unit.
- the value range of time offset is 0 ⁇ 3. That is, at this time, the offset indication is performed with the granularity of 32 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-3, and the value of K is 32.
- Table 15 shows another example of the time offset value in the embodiment of the present application.
- Duration Value range of timeoffset Actual value of timeoffset 160ms 0 ⁇ 7 timeoffset*2 frames 320ms 0 ⁇ 7 timeoffset*4 frames 640ms 0 ⁇ 7 timeoffset*2*4 frames 1280ms 0 ⁇ 7 timeoffset*4*4 frames
- the length of the first time unit is 2 data frames (frames)
- the actual time offset value is the time offset (timeoffset) and the first time The product of units.
- the value range of timeoffset is 0-7. That is, at this time, the offset indication is performed with the granularity of 2 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 2.
- the length of the first time unit is 4 data frames (frames), and the actual time offset value is the product of the time offset and the first time unit.
- the value range of time offset is 0-7. That is, at this time, the offset indication is performed with the granularity of 4 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 4.
- the length of the first time unit is 4 data frames, that is, the actual time offset value is twice the product of the time offset and the first time unit.
- the value range of time offset is 0-7. In other words, at this time, the offset indication is performed at the granularity of 8 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 8.
- the length of the first time unit is 4 data frames
- the actual time offset value is 4 times the product of the time offset and the first time unit.
- the value range of time offset is 0-7. In other words, at this time, the offset indication is performed with the granularity of 16 data frames.
- the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 16.
- the second indication information when the value range of timeoffset is 0 to 1, the second indication information requires 1 bit to indicate. When the value range of timeoffset is 0 to 3, the second indication information requires 2 bits to indicate. When the value range of timeoffset is 0-7, the second indication information requires 3 bits to indicate. When the value range of timeoffset is 0-15, the second indication information requires 4 bits to indicate. Therefore, compared with the need for 5 bits to indicate the timeoffset in the prior art, the system signaling overhead can be saved.
- the granularity of the time offset of the first signal in the embodiment of the present application is greater than that in the prior art, and thus can The value range of the time offset is reduced, based on this, the signaling overhead for indicating the time offset can be saved, thereby reducing the system signaling overhead.
- the first signal is the resynchronization signal RSS of the current cell or neighboring cells of the terminal device, or other signals, which are not limited in the embodiment of the present application.
- Fig. 5 shows a schematic diagram of RSS measurement in the prior art.
- the network device can configure a measurement gap for each terminal device at the same time in a semi-static manner.
- the measurement interval can be 40ms, and the measurement interval is measured in each measurement interval period.
- the duration is 6ms.
- the time offset of the RSS of the neighboring cell relative to the RSS of the current cell is A times of a subframe, where A is a positive integer greater than or equal to 1.
- A is a positive integer greater than or equal to 1.
- the terminal device will not be able to measure the RSS in the neighboring cell.
- the network device can configure the RSS signal length of the cell to be 16ms, and the RSS period (periodicity) to 160ms, so that the terminal device can measure in the first measurement period and the fifth measurement period shown in Figure 5 RSS to this cell.
- the time offset of the RSS of neighboring cell 1 relative to the current cell is 4 subframes (one subframe is 10ms in length, and 4 subframes is 40ms in length).
- the terminal device can be in the second The RSS of neighboring cell 1 is measured in the first measurement period and the sixth measurement period (not shown in FIG. 5).
- the time offset of the RSS of neighboring cell 1 relative to the current cell is 2 subframes (2 subframes are 20ms in length).
- the terminal equipment since the RSS of neighboring cell 2 corresponds to the time period, the terminal equipment has not performed measurement, so The terminal equipment cannot measure the RSS of neighboring cell 2.
- the first time unit in order to enable the terminal device to measure the RSS of the neighboring cell, may be set to M times the measurement interval period of the terminal device, where M is greater than or equal to 1.
- M is greater than or equal to 1.
- a positive integer In other words, the actual time offset value of the RSS of the neighboring cell is an integer multiple of the measurement interval period.
- the first time unit may be 20 ms, 40 ms, or 80 ms, which is not limited in the embodiment of the present application.
- the first time unit may be 40 ms, 80 ms, or 160 ms, which is not limited in the embodiment of the present application.
- the first time unit may be 80 ms, or 160 ms, which is not limited in the embodiment of the present application.
- the first time unit is set to an integer multiple of the measurement interval period of the terminal device, so that when the network device sends the first signal, the terminal device is always in the state of detecting the first signal.
- the terminal device can measure the first signal, thereby avoiding the waste of signaling and improving the system throughput.
- the RSS of the neighboring cell 3 is shown by the dashed RSS, but due to the time difference introduced by non-synchronization, the RSS of the neighboring cell 3 is actually shown by its corresponding solid RSS. At this time, since the terminal device does not perform measurement in the time period corresponding to the actual RSS of the neighboring cell 3, the terminal device cannot measure the RSS of the neighboring cell 3.
- the actual time offset value of the first signal may be determined according to the time offset, the first time unit, the second parameter, and the duration, where the second signal
- the parameters are determined according to the synchronization state between the serving cell where the terminal device is located and the neighboring cells of the serving cell where the terminal device is located.
- Table 16 shows an example of the time offset value in the embodiment of the present application.
- Table 17 shows an example of the time offset value in the embodiment of the present application.
- Table 18 shows an example of the time offset value in the embodiment of the present application.
- Table 19 shows an example of the time offset value in the embodiment of the present application.
- the difference from Tables 12 to 15 is that in Tables 16 to 19, the second parameter x is used to correct the timeoffset, or the second parameter x is used to correct the actual time offset value.
- the actual time offset value timeoffset*2frames is corrected to (timeoffset+x)*2frames, or the actual time offset value timeoffset*2frames is corrected to timeoffset*2frames+x.
- the second parameter to correct the time offset value or the actual time offset value
- the time difference introduced by asynchronous can be eliminated, so that the terminal device can detect the first signal, thereby avoiding the signal.
- the waste of the order improves the system throughput.
- the second parameter may be configured by the network device, or measured by the terminal device, or set in advance, which is not specifically limited in the embodiment of the present application.
- the network device sends the second indication information to the terminal device.
- the terminal device receives the second indication information.
- the terminal device determines the actual time offset value of the first signal according to the second indication information.
- the terminal device may determine the actual time offset value of the first signal according to the time offset, the first time unit, and the duration value indicated by the second indication information.
- the terminal device measures the first signal according to the actual time offset value of the first signal.
- the actual offset value of the first signal is indicated in the unit of one data frame.
- One time unit is the granularity for indication.
- the embodiment of the present application can reduce the value range of the time offset.
- the number of bits used to indicate time offset information in the configuration channel of the first signal is reduced, thereby reducing signaling overhead and improving system throughput.
- the signaling overhead is small, power consumption can be saved.
- An embodiment of the present application also provides another communication method, wherein the network device can determine third indication information, the third indication information includes N bits for indicating the first channel quality information, and Q bits for indicating the second channel Quality information, where N>Q.
- the Q bits used to indicate the second channel quality information are Q bits in the first position among the N bits used to indicate the first channel quality information, or the Q bits are The Q bits in the first position among the N bits, the first position may be the highest Q bits or the lowest Q bits.
- Channel state information includes one or a combination of the following: channel quality indicator (CQI), the number of repetitions of the first channel, reference signal received quality (RSRQ), reference signal receiving power (reference signal receiving power) , RSRP), the number of repetitions of the first channel.
- the first channel may include a physical downlink data channel, or physical uplink data channel, or physical downlink control channel, or physical uplink control channel, or reference physical downlink data channel, or reference physical uplink data channel, or reference physical downlink control Channel, or refer to the physical uplink control channel, etc.
- FIG. 6 shows a schematic block diagram of a communication device 600 provided by an embodiment of the present application.
- the device 600 may include a transceiver unit 610 and a processing unit 620.
- the apparatus 600 may correspond to the network equipment described in the above method, or may correspond to the chip or component of the network equipment, and each module or unit in the apparatus 600 may be used to execute the network equipment in the above method. Each action or process performed.
- the processing unit 620 is configured to determine first indication information, where the first indication information is used to indicate the frequency domain position information of the first signal of the second device, so that the frequency domain position of the first signal can be determined according to the location of the second signal. Is determined by the frequency domain position of and the first indication information, the first signal is the resynchronization signal of the neighboring cell of the second device, and the second signal is the resynchronization signal of the serving cell of the second device signal;
- the transceiver unit 610 is configured to send the first indication information to the second device.
- the first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrow band where the second signal is located, and the first bit state The set includes one or more bit states;
- the second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same, the
- the second set of bit states includes one or more bit states.
- k bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;
- the remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.
- the frequency domain position of the first signal can be determined according to the frequency domain position where the second signal is located, the first indication information, and the first parameter, where the first parameter is The interval granularity of the frequency domain position of the first signal;
- the first parameter is k1;
- the first parameter is k2;
- the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1 ⁇ k2.
- the device 600 may correspond to the terminal device described in the above method, or may correspond to the chip or component of the terminal device, and each module or unit in the device 600 may be used to execute the terminal device in the above method. Each action or process performed.
- the transceiver module 610 is configured to receive first indication information sent by a first device, where the first indication information is used to indicate frequency domain position information of a first signal of the second device, and the first signal is the first signal. 2. Resynchronization signals of neighboring cells of the device;
- the processing module 620 is configured to determine the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal, and the second signal is the reconfiguration of the serving cell of the second device. Synchronization signal
- the processing module 620 is further configured to measure the first signal according to the frequency domain position where the first signal is located.
- the first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrow band where the second signal is located, and the first bit state The set includes one or more bit states;
- the second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same, the
- the second set of bit states includes one or more bit states.
- k bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;
- the remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.
- processing module 620 is specifically configured to:
- the first parameter is k1;
- the first parameter is k2;
- the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1 ⁇ k2.
- the apparatus 600 may correspond to the network equipment described in the above method, or may correspond to the chip or component of the network equipment, and each module or unit in the apparatus 600 may be used to execute the network equipment in the above method. Each action or process performed.
- the processing module 620 is configured to determine second indication information, where the second indication information is used to indicate the time offset of the first signal of the second device, so that the actual time offset value of the first signal can be based on the time offset.
- the first time unit and duration are determined, where, when the duration of the first signal is 160 ms, the first time unit is N times a data frame, where N is a positive integer greater than 1, or, The first time unit is M times the measurement interval period of the second device, where M is a positive integer;
- the transceiver module 610 is configured to send the second indication information to the second device.
- the actual time offset value of the first signal is determined according to the time offset, the first time unit, the duration, and the second parameter, wherein the second parameter is determined according to the The synchronization state between the serving cell of the second device and the neighboring cell of the second device is determined.
- the actual time offset value of the first signal is timeoffset*K*frames, where the value of timeoffset ranges from 0 to 1, and K is 8. , Or the value range of timeoffset is 0 ⁇ 3, K is 4, or the value range of timeoffset is 0 ⁇ 7, K is 2, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 8, or the value range of timeoffset is 0 ⁇ 7, K is 4, or the range of timeoffset is 0 ⁇ 15, K is 2, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 16, or the value range of timeoffset is 0 ⁇ 7, K is 8, or the range of timeoffset is 0 ⁇ 15, K is 4, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 32, or the value range of timeoffset is 0 ⁇ 7, K is 16, or the range of timeoffset is 0 ⁇ 15, K is 8, where K*frames is the first time unit;
- the timeoffset represents the time offset
- the frames represents the length of the data frame.
- the device 600 may correspond to the terminal device described in the above method, or may correspond to the chip or component of the terminal device, and each module or unit in the device 600 may be used to execute the terminal device in the above method. Each action or process performed.
- the transceiver module 610 is configured to receive second indication information sent by the first device, where the second indication information is used to indicate the time offset of the first signal of the second device;
- the processing module 620 is configured to determine the actual time offset value of the first signal according to the time offset, the first time unit, and the duration value, where, when the duration of the first signal is 160 ms, the The first time unit is N times a data frame, where N is a positive integer greater than 1;
- the processing module 620 is further configured to measure the first signal according to the actual time offset value of the first signal by the second device.
- processing module 620 is specifically configured to:
- the actual time offset value of the first signal is timeoffset*K*frames, where the value of timeoffset ranges from 0 to 1, and K is 8. , Or the value range of timeoffset is 0 ⁇ 3, K is 4, or the value range of timeoffset is 0 ⁇ 7, K is 2, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 8, or the value range of timeoffset is 0 ⁇ 7, K is 4, or the range of timeoffset is 0 ⁇ 15, K is 2, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 16, or the value range of timeoffset is 0 ⁇ 7, K is 8, or the range of timeoffset is 0 ⁇ 15, K is 4, where K*frames is the first time unit;
- the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 ⁇ 3, K is 32, or the value range of timeoffset is 0 ⁇ 7, K is 16, or the range of timeoffset is 0 ⁇ 15, K is 8, where K*frames is the first time unit;
- the timeoffset represents the time offset
- the frames represents the length of the data frame.
- the apparatus 600 of each of the foregoing solutions has the function of implementing the corresponding steps performed by the first device or the second device in the foregoing method, which may be implemented by hardware, or may be implemented by hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the sending unit can be replaced by a transmitter, the receiving unit can be replaced by a receiver, and other units, such as a determining unit, can be replaced by a processor, and each method is executed separately Transceiving operations and related processing operations in the embodiment.
- the processor can be used to perform, for example, but not limited to, baseband related processing
- the transceiver can be used to perform, for example, but not limited to, radio frequency transceiving.
- the above-mentioned devices may be respectively arranged on independent chips, or at least partly or fully arranged on the same chip.
- the processor can be further divided into an analog baseband processor and a digital baseband processor.
- the analog baseband processor and the transceiver can be integrated on the same chip, and the digital baseband processor can be set on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip.
- a digital baseband processor can be combined with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) Integrated on the same chip.
- application processors such as but not limited to graphics processors, multimedia processors, etc.
- Such a chip may be called a system on chip (SOC).
- SOC system on chip
- an embodiment of the present application provides a schematic block diagram of a communication device 700.
- the device 700 includes a processor 710, a transceiver 720, and a memory 730.
- the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path.
- the memory 730 is used to store instructions, and the processor 710 is used to execute the instructions stored in the memory 730 to control the transceiver 720 to send signals and / Or receive signal.
- apparatus 600 in FIG. 6 in the embodiment of the present application may be implemented by the apparatus 700 in FIG. 7, and may be used to execute various steps and/or processes corresponding to the first device or the second device in the foregoing method embodiment.
- the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the method in the above embodiment .
- the various embodiments in this application can also be combined with each other.
- the present application also provides a computer-readable medium with a program code stored in the computer-readable interpretation, and when the program code runs on a computer, the computer executes the method in the foregoing embodiment .
- the foregoing method embodiments in the embodiments of the present application may be applied to a processor or implemented by a processor.
- the processor may be an integrated circuit chip with signal processing capabilities.
- the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
- the above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
- the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM static RAM
- dynamic RAM dynamic RAM
- synchronous dynamic random access memory synchronous DRAM, SDRAM
- double data rate Synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
- enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
- synchronous connection dynamic random access memory direct rambus RAM, DR RAM
- direct memory bus random memory Take memory (direct rambus RAM, DR RAM).
- the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application.
- the implementation process constitutes any limitation.
- the computer program product may include one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic disk), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
- the disclosed system, device, and method may be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .
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Abstract
La présente invention concerne un procédé et un appareil de communication pouvant réduire les surdébits de signalisation d'un premier signal. Le procédé de communication comprend les étapes suivantes : un premier dispositif détermine des premières informations d'indication, les premières informations d'indication étant utilisées pour indiquer des informations de position de domaine de fréquence concernant un premier signal d'un second dispositif, de telle sorte que la position de domaine de fréquence du premier signal peut être déterminée en fonction de la position de domaine de fréquence où un second signal est situé et des premières informations d'indication, le premier signal étant un signal de resynchronisation d'une cellule voisine du second dispositif, le second signal étant un signal de resynchronisation d'une cellule de desserte du second dispositif ; et le premier dispositif envoie, au second dispositif, les premières informations d'indication. Le procédé et le dispositif prévus par les modes de réalisation de la présente invention peuvent être appliqués à un système de communication, par exemple V2X, LTE-V, V2V, l'internet des véhicules, MTC, IdO, LTE-M, M2M, l'internet des objets, et autres.
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CN109803416B (zh) * | 2017-11-17 | 2024-10-15 | 华为技术有限公司 | 通信方法和通信设备 |
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