WO2021023002A1 - Channel monitoring method and communication device - Google Patents

Abstract

Disclosed are a channel monitoring method and a communication device, the monitoring method comprising: when monitoring channels in multiple beam directions, implementing monitoring of the channels in multiple beam directions in sequence according to a preset rule.

Description

Channel monitoring method and communication equipment

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910713243.2 filed in China on August 2, 2019, and the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the communication field, and in particular to a channel monitoring method and communication equipment.

Background technique

In the existing communication system, communication equipment (such as terminal equipment, network equipment, and Wireless-Fidelity Access Point (Wi-Fi AP, Wireless-Fidelity Access Point)) can use unlicensed bands for communication. Generally, a communication device needs to monitor the channel of the unlicensed frequency band (that is, LBT (listen before talk)) before using the unlicensed frequency band for communication, and when it is determined that the channel is in an idle state, it accesses the channel and communicates.

With the development of high-frequency communication technology, the use of high-frequency unlicensed frequency bands for communication has become a development trend. When communication devices use high-frequency unlicensed frequency bands for communication, they usually use beamforming technology to communicate. Before communicating, they can use directional LBT (directional LBT) to perform multiple beam directions on high-frequency unlicensed frequency bands. Channel to monitor. However, in actual channel monitoring, for analog beams, the directional LBT can only monitor channels in one beam direction at the same time, and cannot meet the demand for monitoring channels in multiple beam directions.

Summary of the invention

The embodiments of the present disclosure provide a channel monitoring method and a communication device to solve the problem that the communication device cannot effectively monitor channels in multiple beam directions of the high-frequency unlicensed spectrum before using the high-frequency unlicensed spectrum for communication. .

In order to solve the above technical problems, the present disclosure is implemented as follows:

In the first aspect, a channel monitoring method is provided, including:

When monitoring channels in multiple beam directions, the channels in the multiple beam directions are monitored in sequence according to a preset rule.

In a second aspect, a communication device is provided, including:

The monitoring module, when monitoring the channels in multiple beam directions, sequentially monitors the channels in the multiple beam directions according to a preset rule.

In a third aspect, a communication device is provided. The communication device includes a processor, a memory, and a computer program stored on the memory and running on the processor. When the computer program is executed by the processor, Implement the steps of the method as described in the first aspect.

In a fourth aspect, a computer-readable storage medium is provided, wherein a computer program is stored on the computer-readable storage medium, and the computer program implements the steps of the method described in the first aspect when the computer program is executed by a processor.

In the technical solution provided by the embodiments of the present disclosure, when a communication device monitors channels in multiple beam directions, it monitors channels in multiple beam directions in sequence according to a preset rule. In this way, before the communication device uses the high-frequency unlicensed frequency band to communicate, when the directional LBT is used to monitor the channels in multiple beam directions under the unlicensed spectrum, it can follow the preset rules to sequentially monitor the multiple beam directions. Therefore, an effective channel monitoring method can be provided, so that the communication device can effectively access the channel of the high-frequency unlicensed frequency band, thereby realizing information transmission in the high-frequency unlicensed frequency band.

Description of the drawings

The drawings described here are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute an improper limitation of the present disclosure. In the attached picture:

FIG. 1 is a schematic flowchart of a channel monitoring method according to an embodiment of the present disclosure;

Fig. 2 is a schematic diagram of a channel monitoring method according to an embodiment of the present disclosure;

3 is a schematic diagram of a channel monitoring method according to an embodiment of the present disclosure;

4 is a schematic diagram of a channel monitoring method according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

Fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.

detailed description

Embodiments of the present disclosure provide a channel monitoring method and a communication device. The monitoring method includes: when monitoring channels in multiple beam directions, according to a preset rule, sequentially monitoring channels in the multiple beam directions .

In this way, before the communication device uses the high-frequency unlicensed spectrum to communicate, when the directional LBT is used to monitor the channels in multiple beam directions under the unlicensed spectrum, it can follow the preset rules to sequentially monitor the multiple beam directions. Therefore, an effective channel monitoring method can be provided, so that the communication device can effectively access the channel of the high-frequency unlicensed spectrum, and then realize the information transmission in the high-frequency unlicensed frequency band.

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

The technical solution of the present disclosure can be applied to various communication systems, such as: Long Term Evolution (LTE)/Long Term Evolution advanced (LTE-A) system, LTE Frequency Division Duplex (FDD, Frequency) Division Duplex system, LTE Time Division Duplex (TDD, Time Division Duplex) system, Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) or Worldwide Interoperability for Microwave Access (WiMAX, Worldwide Interoperability for Microwave Access) communication system, 5G system , Or the New Radio (NR) system, etc.

Terminal equipment can be understood as user equipment (UE, User Equipment), and can also be referred to as mobile terminal (Mobile Terminal), mobile user equipment, etc., and can be connected to one or more wireless access networks (for example, RAN, Radio Access Network). A core network for communication. The terminal device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, it can be portable, pocket-sized, handheld, built-in computer or vehicle-mounted Mobile devices can also be flying equipment such as drones and aircraft, which exchange language and/or data with the wireless access network.

Network equipment can be understood as a core network or a base station. The base station can be a base station (BTS, Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, or a base station in LTE. Evolved base stations (eNB or e-NodeB, evolutional Node B) and 5G base stations (gNB), as well as network side equipment in subsequent evolved communication systems, are not limited in the present disclosure, but for ease of description, the following embodiments take gNB as Examples are explained.

The high-frequency unlicensed frequency band recorded in this embodiment may be an unlicensed frequency band of 60 GHz, or may be an unlicensed frequency band of other high-frequency frequency bands, which is not specifically limited here.

The technical solutions provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

Figure 1 is a schematic flow chart of a channel monitoring method according to an embodiment of the present disclosure. The method is applied to a communication device. The communication device can be the terminal device described above, the network device described above, or wireless fidelity. Access point (Wi-Fi AP, Wireless-Fidelity Access Point), the channel monitoring method is as follows.

S102: When monitoring the channels in the multiple beam directions, according to a preset rule, sequentially monitor the channels in the multiple beam directions.

In S102, before the communication device uses the high-frequency unlicensed spectrum to communicate, it can monitor the channels in the multiple beam directions of the high-frequency unlicensed spectrum in the directional LBT mode, and perform the monitoring of the channels in the multiple beam directions. When monitoring, the channels in multiple beam directions can be monitored in sequence according to preset rules. Wherein, the monitoring sequence for the channels in the multiple beam directions may be a random sequence, or a predetermined sequence.

In the first implementation manner of this embodiment, when the communication device sequentially monitors channels in multiple beam directions according to a preset rule, it may include:

When monitoring the first channel in the first beam direction, if the status of the first channel is occupied and the monitoring parameter of the first channel is greater than or equal to the preset threshold, then the second channel in the second beam direction is monitored. monitor. The first beam direction is one beam direction among the multiple beam directions, and the second beam direction is another beam direction that is different from the first beam direction among the multiple beam directions.

Specifically, taking the first beam direction among the multiple beam directions as an example, when monitoring the channel in the first beam direction (here, for easy distinction, it may be represented by the first channel), the state of the first channel can be determined Is it idle?

When judging whether the status of the first channel is idle, the communication device can perform a clear channel assessment (CCA, Clear Channel Assessment) through power detection. If it is detected that the received power of the communication device in multiple CCA time slots is less than the power threshold , It can be determined that the status of the first channel is idle; if it is detected that the received power of the communication device in a CCA time slot is greater than or equal to the power threshold, it can be determined that the status of the first channel is non-idle, that is, occupied.

It should be noted that in the existing monitoring mechanism, the direction of the receiving beam of the communication device is usually the omni-directional pattern or the quasi-omni antenna pattern, that is, the direction of the communication device The receiving beam works in the widest beam, and in this embodiment, the communication device monitors channels in multiple beam directions based on directional LBT (that is, directional beam pattern), so it is determining the channel status When it is idle, the power threshold needs to consider the gain difference between the directional beam pattern and the omni-directional pattern or the quasi-omni antenna pattern, that is, the gain of the receiving antenna in one beam direction in this embodiment and the existing omni-directional Or the gain of the receiving antenna in the quasi-omnidirectional beam direction to adjust the existing power threshold.

Specifically, assuming that the receiving antenna is a quasi-omnidirectional beam, it is known that the existing power threshold is: -47dBm+(40dBm-Pout(dBm)), where Pout is the effective isotropic radiated power (EIRP, Effective Isotropic Radiated Power), Then the adjusted power threshold can be expressed as: -47dBm+(40dBm-Pout(dBm))+Δ(dB), where Δ(dB)=Grx_dir(dB)-Grx_quasi-omni(dB), Grx_dir(dB) is In this embodiment, the receiving antenna gain in the beam direction being monitored, Grx_quasi-omni (dB) is the receiving antenna gain in the existing quasi-omnidirectional beam direction.

After the adjusted power threshold is obtained, it can be determined whether the state of the first channel is idle based on the adjusted power threshold.

It should be noted that in the content described later in this embodiment, when determining whether the state of the channel in each beam direction is idle, the power threshold used may be the power threshold adjusted based on the above adjustment method, or it may be Is the unadjusted power threshold.

After determining whether the status of the first channel is idle:

If the status of the first channel is occupied, and the monitoring parameter when monitoring the first channel is greater than or equal to the preset threshold, it can indicate that the first channel has been occupied for the duration corresponding to the preset threshold, and you can select Monitor the channel in the second beam direction (for easy distinction, it can be represented by the second channel), where the second beam direction is one of the multiple beam directions except the first beam direction, which can be randomly selected , It can also be determined based on a certain sequence. The monitoring parameters can include at least one of the monitoring duration and the number of CCA time slots. The preset threshold can be a predetermined threshold corresponding to the monitoring parameters, which can be determined according to actual conditions. , There is no specific limitation here. The monitoring duration and the number of CCA time slots may be continuous or cumulative monitoring duration of the channel being busy or the number of CCA time slots.

If the state of the first channel is idle, in an implementation manner, the communication device can immediately access the first channel and perform information transmission based on the first channel. After the information transmission is completed, the communication device can transmit information in the second beam direction. In another implementation manner, the communication device may not immediately access the first channel, but choose to monitor the second channel.

In this embodiment, since the communication device performs channel monitoring based on the directional LBT, the communication device may stop monitoring the first channel when monitoring the second channel, or delay monitoring the first channel.

When the communication device is monitoring the second channel, the monitoring method may be the same as the method of monitoring the first channel described above, and the description will not be repeated here.

In this way, based on the monitoring method for the first channel and the second channel described above, monitoring of channels in multiple beam directions can be realized.

In this embodiment, after the channels in multiple beam directions are monitored, the channels in the beam directions are occupied, and the channels in these beam directions can be monitored again; the channels in the beam directions are idle. When the communication device determines that the channel status in these beam directions is idle, and does not immediately access the channel, the communication device can monitor the channels in multiple beam directions, and first check that these channels are idle beams. Information is transmitted in the direction, and the channel in the beam direction occupied by the channel is monitored again.

When the communication device transmits information in the beam directions where these channels are idle, the idle channel is taken as the first channel as an example. Since the first channel is not immediately accessed when the first channel is determined to be idle, in order to ensure The status of the first channel is idle, and CCA can be performed on the first channel again before transmission.

After the CCA before transmission on the first channel, if the state of the first channel is idle, the communication device can transmit information based on the first channel; if the state of the first channel is occupied, the communication device will not be able to transmit information based on the first channel. Channels perform information transmission. At this time, other idle channels can be accessed again, and after information transmission is performed based on other idle channels, the first channel is monitored again.

When the communication device monitors the channel whose channel status is occupied again, taking the first channel as an example, it can include at least the following two methods:

The first way: continue to monitor the first channel based on the target count value.

The target count value can be understood as the extended clear channel assessment (eCCA, extended Clear Channel Assessment) count value corresponding to the delayed monitoring of the first channel. The count value can be random from 0 to 127 when the first channel was monitored last time. A selected value can be represented by counter.

In other words, when monitoring the first channel is delayed, the counter value of the eCCA at this time can be recorded. After monitoring the first channel after delaying, when the first channel is monitored again, the LBT process of the last monitoring can be continued, that is, Perform eCCA directly, and the counter value of eCCA is the counter value recorded when monitoring was stopped last time or when monitoring the first channel was delayed.

Optionally, after the first channel is monitored again based on the counter value at the time of the last monitoring, if the counter value becomes 0 or 1, then the first channel can be accessed immediately, or all channels can be After the channel whose status is occupied is monitored again, access the first channel.

The second way: monitor the first channel again.

Specifically, after stopping monitoring of the first channel, when monitoring the first channel again, a new LBT process can be started, without considering the previous LBT process. When the first channel is monitored again based on the new LBT process, the specific implementation manner may refer to the content of monitoring the first channel recorded above, and the description will not be repeated here.

To facilitate the understanding of the first implementation manner of this embodiment, refer to FIG. 2, FIG. 3, and FIG. 4.

In Figure 2, a rectangular block represents an orthogonal frequency division multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) symbol, t represents a time slot, containing 14 OFDM symbols, and the multiple beams to be monitored are beam 1, beam 2, and For beam 3, the preset threshold is 5 CCA time slots, and each CCA time slot is 5 microseconds, so the 5 CCA time slots are 25 microseconds.

When monitoring channel 1 in the direction of beam 1, and the state of channel 1 is idle, you can immediately access channel 1 and perform information transmission based on channel 1. After information transmission based on channel 1, you can perform information transmission in beam 2 direction Monitor on channel 2. When monitoring channel 2, if the number of CCA time slots occupied by channel 2 exceeds 5, monitoring channel 2 is delayed, and channel 3 in the direction of beam 3 is monitored. When channel 3 is monitored, the status of channel 3 is idle, then channel 3 can be accessed immediately, and information transmission is performed based on channel 3.

After information transmission based on channel 3, channel 2 can be monitored again. At this time, the previous LBT process can be continued and eCCA can be performed directly, and the counter value of eCCA is the counter value of the previous delayed monitoring.

When channel 2 is monitored again, the counter value becomes 0, and channel 2 can be immediately accessed at this time, and information transmission is performed based on channel 2.

So far, information transmission in the directions of beam 1, beam 2, and beam 3 can be realized.

In Figure 3, a rectangular block represents an OFDM symbol, t represents a time slot, containing 14 OFDM symbols, the multiple beams to be monitored are beam 1, beam 2 and beam 3, and the preset threshold is 5 CCA slots. Each CCA time slot is 5 microseconds, and 5 CCA time slots are 25 microseconds.

When monitoring channel 1 in the direction of beam 1, and the state of channel 1 is idle, then channel 2 in the direction of beam 2 can be monitored. When monitoring channel 2 and continuously monitoring that the number of CCA time slots in which channel 2 is busy exceeds 5, monitoring channel 2 is delayed, and channel 3 in the direction of beam 3 is monitored. When monitoring channel 3, the status of channel 3 is idle.

After channel 1, channel 2 and channel 3 are monitored in sequence, channel 1 and channel 3 in idle state can be accessed. When accessing channel 1 and channel 3, in order to ensure the status of channel 1 and channel 3 during transmission To be idle, you can perform CCA on channel 1 and channel 3 again before transmission.

In Figure 3, after the CCA before the transmission of channel 1, the state of channel 1 is still idle. At this time, channel 1 can be accessed and information transmission based on channel 1 can be performed. After the information transmission is completed, channel 3 can be CCA before transmission. After the CCA before transmission on channel 3, the state of channel 3 is also idle. At this time, channel 3 can be accessed and information transmission can be performed based on channel 3.

After information transmission based on channel 3, channel 2 can be monitored again. When monitoring channel 2 again, it can be based on the previous LBT process. In Figure 3, after channel 2 is monitored again, the state of channel 2 is idle. At this time, channel 2 can be accessed immediately, and information transmission is performed based on channel 2.

So far, information transmission in the directions of beam 1, beam 2, and beam 3 can be realized.

In Figure 4, the difference from Figure 3 is that in the CCA before channel 1 transmission, the state of channel 1 is determined to be idle, and after information transmission is based on channel 1, when the CCA before transmission on channel 3 is performed, The state of channel 3 changes from being idle to occupied. At this time, channel 3 will not be accessed, and channel 3 needs to be monitored again. When re-monitoring the channels in each beam direction in which the channel is detected as occupied, the channel 2 can be monitored first, and then the channel 3 can be monitored.

In Figure 4, after channel 2 is monitored, the state of channel 2 is idle. At this time, channel 3 can be monitored. When monitoring channel 3, the status of channel 3 is also idle.

After re-monitoring channel 2 and channel 3 and confirming that channel 2 and channel 3 are free, channel 2 and channel 3 can be accessed. Before accessing channel 2 and channel 3, channel 2 and channel 3 can be re- Perform a CCA to ensure that the status of channel 2 and channel 3 are idle.

In Figure 4, after the CCA before the transmission of channel 2, the state of channel 2 is still idle. At this time, channel 2 can be accessed and information transmission based on channel 2 can be performed. After the information transmission is completed, channel 3 can be CCA. After the CCA before transmission on channel 3, the state of channel 3 is also idle. At this time, channel 3 can be accessed and information transmission can be performed based on channel 3.

So far, information transmission in the directions of beam 1, beam 2, and beam 3 can be realized.

In the second implementation manner of this embodiment, when the communication device sequentially monitors channels in multiple beam directions according to a preset rule, it may include:

When monitoring the channels in one of the beam directions, if the channel status is empty, then the channels in the remaining beam directions are monitored.

Specifically, taking one of the beam directions as an example, the communication device can continuously monitor the channel in the beam direction until the state of the channel in the beam direction is idle, that is, initial clear channel assessment (iCCA, initial Clear Channel Assessment) The detection channel is empty, or the counter value of eCCA is 0 or 1. At this time, the channel in the next beam direction can be monitored. When the channel in the next beam direction is monitored, continuous monitoring can also be performed until When the state of the channel in the beam direction is idle, the channels in other beam directions are monitored, ... and so on, it is possible to monitor channels in multiple beam directions.

In other words, the communication device can perform a complete monitoring process on the channels in each beam direction until the monitoring of the channels in multiple beam directions is completed.

It should be noted that in the second implementation manner, the communication device can immediately access the channel in one beam direction when it monitors that the channel in the beam direction is empty, or after monitoring the channels in multiple beam directions, That is, when the states of the channels in the multiple beam directions are all idle, the channels in the multiple beam directions are sequentially accessed, which is not specifically limited here. For the specific implementation manner, refer to the related content recorded in the foregoing first implementation manner, and the description will not be repeated here.

In the third implementation manner of this embodiment, when the communication device sequentially monitors channels in multiple beam directions according to a preset rule, the continuous listening duration of the channels in each beam direction may be limited. Therefore, the continuous monitoring duration of the channel in each beam direction can be restricted to be less than or equal to N*T, where N is an integer greater than or equal to 1, T is a CCA time slot, and the values of N and T can be determined according to actual conditions.

In this way, when monitoring the channel in one beam direction, when the continuous monitoring duration is less than or equal to N*T, the monitoring in the beam direction can be suspended, and the channel in the next beam direction can be monitored. When monitoring a channel in one beam direction, if the continuous monitoring duration is less than or equal to N*T, you can suspend monitoring and monitor channels in other beam directions,..., and so on, you can achieve multiple beams Monitoring of the channel in the direction. Among them, the continuous monitoring duration in each beam direction may be the same or different. After the channels in multiple beam directions are monitored in sequence, the channels in multiple beam directions can be polled and monitored. During polling and monitoring, the continuous monitoring duration of each channel can also be restricted to be less than or equal to The above N*T, and for each channel in the beam direction, when monitoring the channel, monitoring can be performed based on the extended CCA counter value when monitoring of the channel was suspended last time.

It should be noted that during the polling and monitoring process, when the channel in a beam direction is continuously monitored for at most N*T, if the status of the channel in the beam direction is occupied, the corresponding extended CCA The counter value remains unchanged. If each extended CCA detects that the state of the channel in the beam direction is idle, the corresponding extended CCA counter value will be decremented by one until the counter value is reduced to 0 or 1. Polling monitoring of the channel in the beam direction.

For example, when a communication device is monitoring channel 1, channel 2, and channel 3 in the directions of beam 1, beam 2, and beam 3, it can monitor channel 1 at most N*CCA time slots, and pause the monitoring of channel 1. Later, channel 2 can be monitored at most N*CCA time slots, and after channel 2 is suspended, channel 3 can be monitored at most N*CCA time slots. After monitoring channel 1, channel 2, and channel 3, you can monitor channel 1, channel 2 and channel 3 by polling until one of the channels is idle, that is, when the counter value is 0 or 1. To stop polling and monitoring the channel.

It should be noted that in the third implementation mode, the communication device can immediately access the channel in one beam direction when it detects that the channel is empty, or it can poll and monitor channels in multiple beam directions. Later, when it is determined that the status of multiple channels is idle, the channels in multiple beam directions are sequentially accessed. After polling and monitoring the channels in multiple beam directions, the status of one or more channels can be determined. When the state is idle, the idle channels are sequentially accessed, and after information transmission is performed based on the idle channels, polling and monitoring are performed on the remaining non-idle channels, which is not specifically limited here. For the specific implementation manner, refer to the related content recorded in the foregoing first implementation manner, and the description will not be repeated here.

In the technical solution provided by the embodiments of the present disclosure, when a communication device monitors channels in multiple beam directions, it monitors channels in multiple beam directions in sequence according to a preset rule. In this way, before the communication device uses the high-frequency unlicensed frequency band to communicate, when the directional LBT is used to monitor the channels in multiple beam directions under the unlicensed spectrum, it can follow the preset rules to sequentially monitor the multiple beam directions. Therefore, an effective channel monitoring method can be provided, so that the communication device can effectively access the channel of the high-frequency unlicensed frequency band, thereby realizing information transmission in the high-frequency unlicensed frequency band.

The foregoing describes specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims may be performed in a different order than in the embodiments and still achieve desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or sequential order shown to achieve the desired result. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

FIG. 5 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure. The communication device includes: a monitoring module 51, wherein:

The monitoring module 51, when monitoring the channels in multiple beam directions, sequentially monitors the channels in the multiple beam directions according to a preset rule.

Optionally, the monitoring module 51, according to a preset rule, sequentially monitors the channels in the multiple beam directions, including:

When monitoring the first channel in the first beam direction, if the state of the first channel is occupied and the monitoring parameter of the first channel is greater than or equal to the preset threshold, then the second channel in the second beam direction is monitored. Monitor on the second channel;

Wherein, the monitoring parameter includes at least one of monitoring duration and the number of CCA time slots for idle channel evaluation.

Optionally, when the monitoring module 51 monitors the second channel in the second beam direction, the method further includes:

Stop monitoring the first channel; or delay monitoring the first channel.

Optionally, the monitoring module 51 monitors the first channel again after monitoring the channels in the multiple beam directions.

Optionally, the monitoring module 51 to monitor the first channel again includes:

Based on the target count value, continue to monitor the first channel, where the target count value is the corresponding extended CCA count value when the monitoring is stopped or the monitoring of the first channel is delayed; or,

Monitor the first channel again.

Optionally, the communication device further includes a communication module 52, wherein:

The communication module 52 immediately accesses the first channel when the monitoring module 51 determines that the state of the first channel is idle.

Optionally, the communication module 52, after the monitoring module 51 determines that the state of the first channel is idle, and after the monitoring module 51 monitors the channels in the multiple beam directions, access The first channel.

Optionally, the communication module 52 accessing the first channel includes:

Perform CCA on the first channel to determine whether the state of the first channel is idle;

If yes, access the first channel.

Optionally, after the communication module 52 performs CCA on the first channel to determine whether the status of the first channel is idle, and if the status of the first channel is occupied, it will access the After the idle channel in the direction of the two beams is transmitted based on the idle channel, the monitoring module 51 monitors the first channel again.

Optionally, the monitoring module 51, according to a preset rule, sequentially monitors the channels in the multiple beam directions, including:

When monitoring the channels in one of the beam directions, if the channel status is empty, then the channels in the remaining beam directions are monitored.

Optionally, the monitoring module 51, after sequentially monitoring the channels in the multiple beam directions according to a preset rule, polls and monitors the channels in the multiple beam directions, wherein each The continuous monitoring duration of the channel in the beam direction is less than or equal to N*T, where N is an integer greater than or equal to 1, and T is a CCA time slot.

Optionally, the power threshold for channel monitoring is determined based on the difference between the respective receive antenna gains in the multiple beam directions and the receive antenna gains in the omnidirectional or quasi-omnidirectional beam direction, wherein the power threshold Used to judge whether the channel status is idle.

The communication device provided by the embodiment of the present disclosure can implement each process implemented by the communication device in the method embodiment in FIG. 1, and to avoid repetition, details are not described herein again. In the embodiment of the present disclosure, when the communication device monitors the channels in the multiple beam directions, it monitors the channels in the multiple beam directions in sequence according to a preset rule. In this way, before the communication device uses the high-frequency unlicensed frequency band to communicate, when the directional LBT is used to monitor the channels in multiple beam directions under the unlicensed spectrum, it can follow the preset rules to sequentially monitor the multiple beam directions. Therefore, an effective channel monitoring method can be provided, so that the communication device can effectively access the channel of the high-frequency unlicensed frequency band, thereby realizing information transmission in the high-frequency unlicensed frequency band.

In the embodiments of the present disclosure, the communication device may be a network device or a terminal device. When the communication device is a terminal device, as shown in Fig. 6, Fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure. The terminal device 600 shown in FIG. 6 includes: at least one processor 601, a memory 602, at least one network interface 604, and a user interface 603. The various components in the mobile terminal 600 are coupled together through the bus system 605. It can be understood that the bus system 605 is used to implement connection and communication between these components. In addition to the data bus, the bus system 605 also includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are marked as the bus system 605 in FIG. 6.

Wherein, the user interface 603 may include a display, a keyboard, a pointing device (for example, a mouse, a trackball), a touch panel or a touch screen, etc.

It can be understood that the memory 602 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM, Read-Only Memory), programmable read-only memory (PROM, Programmable ROM), erasable programmable read-only memory (EPROM, Erasable PROM), and electrically available Erase programmable read-only memory (EEPROM, Electrically EPROM) or flash memory. The volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (SRAM, Static RAM), dynamic random access memory (DRAM, Dynamic RAM), synchronous dynamic random access memory (SDRAM, Synchronous DRAM), double data rate synchronous dynamic random access memory (DDRSDRAM, Double Data Rate SDRAM), enhanced synchronous dynamic random access memory (ESDRAM, Enhanced SDRAM), synchronous connection dynamic random access memory (SLDRAM, Synchron link DRAM) ) And Direct Rambus RAM (DRRAM). The memory 602 of the system and method described in the embodiments of the present disclosure is intended to include but not limited to these and any other suitable types of memory.

In some embodiments, the memory 602 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: operating system 6021 and application programs 6022.

Among them, the operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 6022 includes various application programs, such as a media player (MediaPlayer), a browser (Browser), etc., which are used to implement various application services. A program for implementing the method of the embodiment of the present disclosure may be included in the application program 6022.

In the embodiment of the present disclosure, the terminal device 600 further includes: a computer program that is stored in the memory 602 and can be run on the processor 601. When the computer program is executed by the processor 601, the following steps are implemented:

When monitoring channels in multiple beam directions, the channels in the multiple beam directions are monitored in sequence according to a preset rule.

In this way, before the terminal device uses the high-frequency unlicensed frequency band to communicate, when the directional LBT is used to monitor the channels in the multiple beam directions under the unlicensed spectrum, it can follow the preset rules to sequentially monitor the multiple beam directions. Therefore, an effective channel monitoring method can be provided, so that the terminal device can effectively access the channel of the high-frequency unlicensed frequency band, thereby realizing information transmission in the high-frequency unlicensed frequency band.

The methods disclosed in the foregoing embodiments of the present disclosure may be applied to the processor 601 or implemented by the processor 601. The processor 601 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 601 or instructions in the form of software. The aforementioned processor 601 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), an application specific integrated circuit (ASIC, Application Specific Integrated Circuit), a field programmable gate array (FPGA, Field Programmable Gate Array) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present disclosure 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 combination with the embodiments of the present disclosure 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 may be located in a mature computer readable 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 computer-readable storage medium is located in the memory 602, and the processor 601 reads information in the memory 602, and completes the steps of the foregoing method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 601, the steps of the foregoing channel monitoring method embodiment are implemented.

It can be understood that the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuits), digital signal processor (DSP, Digital Signal Processing), digital signal processing device (DSPD, DSP Device), programmable Logic device (PLD, Programmable Logic Device), Field-Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this disclosure Electronic unit or its combination.

For software implementation, the technology described in the embodiments of the present disclosure can be implemented through modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure. The software codes can be stored in the memory and executed by the processor. The memory can be implemented in the processor or external to the processor.

The terminal device 600 can implement each process implemented by the communication device in the foregoing embodiment, and to avoid repetition, details are not described herein again.

The embodiment of the present disclosure also proposes a computer-readable storage medium that stores one or more programs, the one or more programs include instructions, and the instructions are executed by a communication device that includes multiple application programs. At this time, the communication device can be made to execute the method of the embodiment shown in FIG. 1, and is specifically used to execute the steps of the channel monitoring method described above.

When the communication device is a network device, as shown in FIG. 7, FIG. 7 is a schematic structural diagram of a network device provided in an embodiment of the present disclosure. The physical device structure diagram of the network device 700 may be as shown in FIG. 7, including a processor 702 and a memory. 703, transmitter 701, and receiver 704. In specific applications, the transmitter 701 and the receiver 704 may be coupled to the antenna 705.

The memory 703 is used to store programs. Specifically, the program may include program code, and the program code includes computer operation instructions. The memory 703 may include a read-only memory and a random access memory, and provides instructions and data to the processor 702. The memory 703 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), for example, at least one disk memory.

The processor 702 executes the program stored in the memory 703.

Specifically, in the network device 700, the processor 702 may perform the following method:

When monitoring channels in multiple beam directions, the channels in the multiple beam directions are monitored in sequence according to a preset rule.

In this way, before the network device uses the high-frequency unlicensed frequency band to communicate, when the directional LBT is used to monitor the channels in the multiple beam directions under the unlicensed spectrum, it can follow the preset rules to sequentially monitor the multiple beam directions. Therefore, an effective channel monitoring method can be provided, so that network equipment can effectively access the channel of the high-frequency unlicensed frequency band, thereby realizing information transmission in the high-frequency unlicensed frequency band.

The method executed by the network device 700 disclosed in the embodiment shown in FIG. 7 of the present disclosure may be applied to the processor 702 or implemented by the processor 702. The processor 702 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 702 or instructions in the form of software. The aforementioned processor 702 may be a general-purpose processor, including a central processing unit (CPU, Central Processing Unit), a network processor (NP, Network Processor), etc.; it may also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), etc. ), ready-made programmable gate array (FPGA) or other programmable 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 disclosure 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 combination with the embodiments of the present disclosure 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 703, and the processor 702 reads the information in the memory 703, and completes the steps of the foregoing method in combination with its hardware.

The network device may also execute the method shown in FIG. 1 and realize the functions of the network device in the embodiment shown in FIG. 1, which will not be repeated in the embodiments of the present disclosure.

The embodiment of the present disclosure also proposes a computer-readable storage medium that stores one or more programs, the one or more programs include instructions, and the instructions are executed by a communication device that includes multiple application programs. At this time, the communication device can be made to execute the method of the embodiment shown in FIG. 1, and is specifically used to execute the steps of the channel monitoring method described above.

In short, the above descriptions are only preferred embodiments of the present disclosure, and are not used to limit the protection scope of the present disclosure. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

The systems, devices, modules, or units illustrated in the above embodiments may be specifically implemented by computer chips or entities, or implemented by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cell phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or Any combination of these devices.

Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article or device that includes the element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk). ) Includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present disclosure.

The embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present disclosure, many forms can be made without departing from the purpose of the present disclosure and the scope of protection of the claims, all of which fall within the protection of the present disclosure.

Claims (15)

A channel monitoring method includes: When monitoring channels in multiple beam directions, the channels in the multiple beam directions are monitored in sequence according to a preset rule. The method according to claim 1, wherein, according to a preset rule, monitoring the channels in the multiple beam directions in sequence comprises: When monitoring the first channel in the first beam direction, if the state of the first channel is occupied and the monitoring parameter of the first channel is greater than or equal to the preset threshold, then the second channel in the second beam direction is monitored. Monitor on the second channel; Wherein, the monitoring parameter includes at least one of monitoring duration and the number of CCA time slots for idle channel evaluation. The method according to claim 2, wherein, when monitoring the second channel in the second beam direction, the method further comprises: Stop monitoring the first channel; or delay monitoring the first channel. The method of claim 3, wherein the method further comprises: After the channels in the multiple beam directions are monitored, the first channel is monitored again. The method according to claim 4, wherein monitoring the first channel again comprises: Based on the target count value, continue to monitor the first channel, where the target count value is the corresponding extended CCA count value when monitoring the first channel is delayed; or, Monitor the first channel again. The method of claim 2, wherein the method further comprises: If the status of the first channel is idle, the first channel is immediately accessed. The method of claim 2, wherein the method further comprises: If the state of the first channel is idle, access the first channel after monitoring the channels in the multiple beam directions. 8. The method of claim 7, wherein accessing the first channel comprises: Perform CCA on the first channel to determine whether the state of the first channel is idle; If yes, access the first channel. 8. The method according to claim 8, wherein, after performing CCA on the first channel to determine whether the state of the first channel is idle, the method further comprises: If the status of the first channel is occupied, after accessing the idle channels in the multiple beam directions and performing transmission based on the idle channels, the first channel is monitored again. The method according to claim 1, wherein, according to a preset rule, monitoring the channels in the multiple beam directions in sequence comprises: When monitoring the channels in one of the beam directions, if the channel status is empty, then the channels in the remaining beam directions are monitored. The method according to claim 1, wherein, after sequentially monitoring the channels in the multiple beam directions according to a preset rule, the method further comprises: Polling and monitoring the channels in the multiple beam directions, wherein the continuous monitoring duration of the channels in each beam direction is less than or equal to N*T, N is an integer greater than or equal to 1, and T is a CCA time slot. The method of claim 1, wherein: The power threshold for channel monitoring is determined based on the difference between the respective receive antenna gains in the multiple beam directions and the receive antenna gains in the omnidirectional or quasi-omnidirectional beam directions, where the power threshold is used to determine the channel Whether the status of is idle. A communication device including: The monitoring module, when monitoring the channels in multiple beam directions, sequentially monitors the channels in the multiple beam directions according to a preset rule. A communication device, comprising: a memory, a processor, and a computer program stored on the memory and capable of running on the processor, the computer program being executed by the processor implements as claimed in claims 1 to 12 Any of the steps of the method. A computer-readable storage medium with a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 12 are realized.

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