CN111083789B - Communication method and communication device - Google Patents

Communication method and communication device Download PDF

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Publication number
CN111083789B
CN111083789B CN201811223547.2A CN201811223547A CN111083789B CN 111083789 B CN111083789 B CN 111083789B CN 201811223547 A CN201811223547 A CN 201811223547A CN 111083789 B CN111083789 B CN 111083789B
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signal
wifi signal
laa
terminal
energy difference
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CN111083789A (en
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吴晓飞
洪庆春
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201811223547.2A priority Critical patent/CN111083789B/en
Priority to PCT/CN2019/111954 priority patent/WO2020078468A1/en
Publication of CN111083789A publication Critical patent/CN111083789A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a communication method and a communication device. The communication method comprises the following steps: the terminal receives an LAA signal and a wifi signal through the unlicensed spectrum resource, and determines whether to send the report information according to the energy difference value of the LAA signal and the wifi signal, namely, the terminal sends the report information for indicating to update resource allocation to the network equipment under the condition that the interference of the wifi signal to the LAA signal is large; and under the condition that the interference of the wifi signal to the LAA signal is small, the report information is not sent. Therefore, the network equipment can reasonably distribute the resources, and the resource utilization rate is improved, or the throughput of the network equipment is improved.

Description

Communication method and communication device
Technical Field
The present application relates to the field of communications, and in particular, to a communication method and a communication apparatus.
Background
In the 802.11ac, Institute of Electrical and Electronics Engineers (IEEE) wireless technology standard, a design of a 5GHz frequency band is added for wireless local area network (wifi) signals, so that channel collision generated by sharing a 2.4GHz frequency band with bluetooth, a microwave oven and the like is avoided, and user experience is improved. The beacon (beacons) frame is a management frame of a wifi signal, and the wifi signal can regularly and sequentially send regular wireless signals (similar to heartbeat) at specified intervals, so that the wifi signal source can be synchronously used with a terminal in a sleep state. That is, the beacon frame within one period includes a data transmission period and a sleep period.
When a terminal receives a downlink signal (for example, the downlink signal is an LAA signal), if the LAA signal and the wifi signal share a 5GHz frequency band, a channel collision may occur. When the terminal is in a sleep state, the wifi signal source may send a beacon frame similar to a heartbeat, the wifi signal sending period is only tens of microseconds, if the channel detection period of the LAA signal is large, the duration is short, the beacon frame cannot be completely detected, for example, if the channel detection period of the LAA signal is minimum 40ms, the duration is maximum 70 symbols (i.e., 5 ms). Therefore, the terminal may be interfered by the wifi signal when receiving the LAA signal, but the terminal cannot detect the wifi signal, so that the LAA signal generates a certain error rate, that is, the resource utilization rate is low.
Disclosure of Invention
The application provides a communication method and a communication device, which can help to improve the resource utilization rate.
In a first aspect, a communication method is provided, and the communication method includes:
receiving a wireless network wifi signal and an authorization-free auxiliary access LAA signal through an authorization-free spectrum resource;
and determining whether to send report information according to the energy difference value of the LAA signal and the wifi signal, wherein the report information is used for updating resource allocation of the network equipment.
The terminal receives an LAA signal and a wifi signal through the unlicensed spectrum resource, and determines whether to send the report information according to the energy difference value of the LAA signal and the wifi signal, namely, the terminal sends the report information for indicating to update resource allocation to the network equipment under the condition that the interference of the wifi signal to the LAA signal is large; and under the condition that the interference of the wifi signal to the LAA signal is small, the report information is not sent. Therefore, the network equipment can reasonably distribute the resources, and the resource utilization rate is improved, or the throughput of the network equipment is improved.
In some possible implementations, the determining whether to send the report information according to the energy difference between the LAA signal and the wifi signal includes:
and determining whether to send the report information according to the magnitude relation between the energy difference value of the LAA signal and the wifi signal and a preset energy difference value.
The first terminal may send the report information when an energy difference between the LAA signal and the wifi signal is greater than a preset energy difference, and accordingly, the first terminal does not send the report information when the energy difference is less than or equal to the preset energy difference. Or the first terminal may send the report information when the energy difference between the LAA signal and the wifi signal is less than or equal to a preset energy difference, and accordingly, the report information is not sent when the energy difference is greater than the preset energy difference. That is to say, the terminal can determine whether to send the report information according to the magnitude relation between the energy difference and the preset energy difference, and further can contribute to reasonable resource allocation of the network device, so that the resource utilization rate is improved, or the throughput of the network device is improved.
In some possible implementation manners, the determining whether to send the report information according to a magnitude relationship between an energy difference value of the LAA signal and the wifi signal and a preset energy difference value includes:
and sending the report information under the condition that the energy difference value between the LAA signal and the wifi signal is greater than the preset energy difference value.
In some possible implementations, the preset energy difference is an energy difference corresponding to a preset error rate of the LAA signal.
The energy difference value of the energy of different LAA signals and the energy of the wifi signal corresponds to the error rate of different LAA signals, the preset energy difference value can be an energy difference value corresponding to the error rate required by a user, and therefore the energy difference value corresponding to the error rate required by the terminal can determine whether to send the report information, so that the network equipment can be further facilitated to reasonably distribute resources, and the resource utilization rate is further improved.
In some possible implementations, the wifi signal is sent periodically, and the method further includes:
determining a sleep period of the wifi signal within a cycle;
wherein, the reported information carries the dormant time interval.
And if the wifi signal is periodically sent, the first terminal determines the sending time period and the dormancy time period of the wifi signal according to a plurality of periods. If the sending time interval is a value agreed by a protocol, only the dormant time interval can be carried in the reported information, so that the signaling overhead of the reported information is reduced.
In some possible implementations, the wifi signal is sent periodically, and the method further includes:
determining a transmission period and a sleep period of the wifi signal within one cycle;
wherein, the reporting information carries the dormant period and the sending period.
And if the wifi signal is periodically sent, the first terminal determines the sending time period and the dormancy time period of the wifi signal according to a plurality of periods. In addition, under the condition that the sending time interval of the wifi signal is not agreed by the first terminal and the network device, the reporting information carries the dormant time interval of the wifi signal and the sending time interval of the wifi signal, so that the network device can more accurately know the sending time interval of the wifi signal, and further the resource utilization rate is improved.
In some possible implementations, the method further includes:
determining the difference value between the RSSI of the LAA signal and the RSSI of the wifi signal according to the RSSI of the LAA signal and the RSSI of the wifi signal and the RSSI of the LAA signal;
and determining the difference value of the RSSI of the LAA signal and the RSSI of the wifi signal as the energy difference value of the LAA signal and the wifi signal.
The first terminal receives an independent LAA signal and determines the RSSI of the LAA signal, under the condition of interference, the RSSI value of the signal received by the first terminal is gradually increased, namely the first terminal can determine the energy of a mixed signal of a received wifi signal and the LAA signal and independently receive the energy of the LAA signal, the energy of the received wifi signal is determined according to the difference value of the two signals, and then the energy difference value of the LAA signal and the wifi signal is determined, so that the terminal can determine whether to send report information according to the energy difference value, and further can contribute to reasonable resource allocation of the network equipment, the resource utilization rate is improved, or the throughput of the network equipment is improved.
In some possible implementations, the method further includes:
receiving an interference measurement instruction;
wherein the determining the Received Signal Strength Indication (RSSI) of the LAA signal and the RSSI of the wifi signal comprises:
and determining the Received Signal Strength Indication (RSSI) of the LAA signal and the RSSI of the wifi signal according to the interference measurement instruction.
The terminal starts the wifi signal measurement according to the interference measurement signaling, which may be to immediately start the wifi signal measurement upon receiving the interference measurement signaling, or start the wifi signal measurement after a preset time interval. The wifi signal measurement is started by determining the RSSI of the LAA signal and the RSSI of the wifi signal, so that the resource waste caused by the fact that the terminal actively carries out interference measurement when the network equipment does not need to carry out interference measurement is avoided, and the resource overhead is saved.
In some possible implementations, the interference measurement instruction carries a correspondence between at least one sleep period of the wifi signal and at least one mapping relationship, where each mapping relationship in the at least one mapping relationship is a mapping relationship between at least one energy difference value and at least one bit error rate.
The mapping relationship may be a table, that is, each mapping relationship is a table including a one-to-one correspondence relationship between a plurality of energy difference values and a plurality of bit error rates. In addition, the sleep periods of different wifi signals respectively correspond to one table, that is, the interference measurement signaling can carry multiple tables corresponding to multiple sleep periods of wifi signals. Thus, the first terminal can determine the corresponding table according to the sleep period of the wifi signal. That is to say, after the dormancy period of the wifi signal is determined, the first terminal determines the preset energy difference corresponding to the required preset error rate according to the table corresponding to the dormancy period, so that the terminal can determine whether to send the report information according to the energy difference, and further can contribute to reasonable resource allocation of the network device, improve the resource utilization rate, or improve the throughput of the network device.
In a second aspect, a communication method is provided, which includes:
sending an unlicensed auxiliary access LAA signal through an unlicensed spectrum resource;
receiving reported information, wherein the reported information is sent by the first terminal according to the wifi signal and the energy difference value of the authorization-free auxiliary access LAA signal;
and updating resource allocation according to the reported information.
The network equipment sends the LAA signal to the first terminal through the unlicensed spectrum resource and receives the report information sent by the first terminal according to the energy difference value of the LAA signal and the wifi signal, so that the network equipment can reasonably update resource allocation, the resource utilization rate is improved, or the throughput of the network equipment is improved.
In some possible implementations, the wifi signal is sent periodically, and the reporting information includes a sleep period of the wifi signal.
And if the wifi signal is periodically sent, the first terminal determines the sending time period and the dormancy time period of the wifi signal according to a plurality of periods. If the sending time interval is a value agreed by a protocol, only the dormant time interval can be carried in the reported information, so that the signaling overhead of the reported information is reduced.
In some possible implementations, the wifi signal is sent periodically, and the reporting information includes a sleep period of the wifi signal and a sending period of the wifi signal.
And if the wifi signal is periodically sent, the first terminal determines the sending time period and the dormancy time period of the wifi signal according to a plurality of periods. In addition, under the condition that the sending time interval of the wifi signal is not agreed by the first terminal and the network device, the dormancy time interval of the wifi signal and the sending time interval of the wifi signal are carried in the reported information, so that the network device can more accurately know the sending time interval of the wifi signal, and further the resource utilization rate is improved.
In some possible implementations, the method further includes:
starting a timer when the LAA signal is transmitted;
wherein, updating the resource allocation according to the reported information comprises:
and before the timer is overtime, updating the resource allocation according to the reported information.
The network equipment can also start a timer when sending the LAA signal, and when the reported information is received before the timer is overtime, the resource allocation is updated according to the reported information. If the report information is received after the timer is overtime, the resource allocation is not updated.
In some possible implementations, the updating the resource allocation according to the reporting information includes:
and allocating resources to a second terminal according to the reported information, wherein the second terminal is a device which is not interfered by the wifi signal.
In some possible implementations, before receiving the reporting information, the method further includes:
and sending an interference measurement instruction, wherein the interference measurement instruction is used for instructing the station to determine whether to send the report information.
The network equipment sends the interference measurement signaling when the terminal needs to perform interference measurement, so that resource waste caused by the active interference measurement of the terminal is avoided, and the resource overhead of the terminal is saved.
In some possible implementations, the interference measurement instruction carries a correspondence between at least one sleep period of the wifi signal and at least one mapping relationship, where each mapping relationship in the at least one mapping relationship is a mapping relationship between at least one energy difference value and at least one bit error rate.
The mapping relationship may be a table, that is, each mapping relationship is a table including a one-to-one correspondence relationship between a plurality of energy difference values and a plurality of bit error rates. In addition, the sleep periods of different wifi signals respectively correspond to one table, that is, the interference measurement signaling can carry multiple tables corresponding to multiple sleep periods of wifi signals. Thus, the first terminal can determine the corresponding table according to the sleep period of the wifi signal. That is to say, the network device may carry the corresponding relationship through the interference measurement signaling, so that after the dormancy period of the wifi signal is determined, the first terminal determines the preset energy difference corresponding to the required preset error rate according to the table corresponding to the dormancy period, and determines whether to send the report information according to the energy difference, thereby further facilitating the network device to be able to reasonably perform resource allocation, improving the resource utilization rate, or improving the throughput of the network device.
In a third aspect, a communication device is provided, which may be a terminal or a chip within the terminal. The apparatus has the functionality to implement the first aspect and various possible implementations described above. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.
In one possible design, the apparatus includes: a processing module and a transceiver module, which may be at least one of a transceiver, a receiver, a transmitter, for example, and which may include a radio frequency circuit or an antenna. The processing module may be a processor.
Optionally, the apparatus further comprises a storage module, which may be a memory, for example. When included, the memory module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute the instructions stored in the storage module or other instructions from other sources, so as to cause the apparatus to perform the method of the first aspect or any one of the above aspects.
In another possible design, when the device is a chip, the chip includes: the chip may further include a transceiver module, which may be, for example, an input/output interface, a pin, a circuit, or the like on the chip. The processing module may be, for example, a processor. The processing module may execute instructions to cause a chip within the terminal to perform the communication method of the first aspect and any possible implementation.
Alternatively, the processing module may execute instructions in a memory module, which may be an on-chip memory module, such as a register, a cache, and the like. The memory module may also be located within the communication device, but outside the chip, such as a read-only memory (ROM) or other types of static memory devices that may store static information and instructions, a Random Access Memory (RAM), and so on.
The processor mentioned in any of the above may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs of the communication methods in the above aspects.
In a fourth aspect, a communication apparatus is provided, where the apparatus may be a network device or a chip within the network device. The apparatus has the functionality to implement the second aspect and various possible implementations described above. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.
In one possible design, the apparatus includes: a transceiver module, which may be at least one of a transceiver, a receiver, a transmitter, for example, and a processing module, which may include a radio frequency circuit or an antenna. The processing module may be a processor.
Optionally, the apparatus further comprises a storage module, which may be a memory, for example. When included, the memory module is used to store instructions. The processing module is connected with the storage module, and the processing module can execute the instructions stored in the storage module or the instructions from other sources, so as to enable the apparatus to execute the communication method of the second aspect and various possible implementation manners. In this design, the apparatus may be a network device.
In another possible design, when the device is a chip, the chip includes: a transceiver module and a processing module, the transceiver module can be an input/output interface, a pin or a circuit on the chip, for example. The processing module may be, for example, a processor. The processing module may execute instructions to cause a chip within the terminal to perform the communication method of the second aspect and any possible implementation.
Alternatively, the processing module may execute instructions in a memory module, which may be an on-chip memory module, such as a register, a cache, and the like. The memory module may also be located within the communication device but external to the chip, such as a read-only memory or other type of static storage device that may store static information and instructions, a random access memory, and so forth.
The processor referred to in any above may be a general purpose central processing unit, a microprocessor, an application specific integrated circuit, or one or more integrated circuits for controlling the execution of programs for the communication methods of the above aspects.
In a fifth aspect, a computer storage medium is provided, in which program code is stored, the program code being used for instructing to execute instructions of the method in the first aspect or any possible implementation manner thereof.
A sixth aspect provides a computer storage medium having stored therein program code for instructing execution of instructions of a method of the second aspect or any possible implementation thereof.
In a seventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any possible implementation of the first aspect described above.
In an eighth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the second aspect described above or any possible implementation thereof.
In a ninth aspect, there is provided a processor, coupled to a memory, for performing the method of the first aspect or any possible implementation thereof.
In a tenth aspect, there is provided a processor, coupled with a memory, for performing the method of the second aspect or any possible implementation thereof.
In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface being used for communicating with an external device or an internal device, the processor being used for implementing the method of the first aspect or any possible implementation thereof.
Optionally, the chip may further include a memory having instructions stored therein, and the processor may be configured to execute the instructions stored in the memory or derived from other instructions. When executed, the instructions are for implementing a method of the first aspect described above or any possible implementation thereof.
Alternatively, the chip may be integrated on the terminal.
In a twelfth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being configured to communicate with an external device or an internal device, the processor being configured to implement the method of the second aspect or any possible implementation thereof.
Optionally, the chip may further include a memory having instructions stored therein, and the processor may be configured to execute the instructions stored in the memory or derived from other instructions. When executed, the instructions are for implementing a method of the second aspect described above or any possible implementation thereof.
Alternatively, the chip may be integrated on a network device.
Based on the technical scheme, the terminal receives the LAA signal and the wifi signal through the unlicensed spectrum resource, and determines whether to send the report information according to the energy difference value of the LAA signal and the wifi signal, namely, the terminal sends the report information for indicating to update the resource allocation to the network equipment under the condition that the interference of the wifi signal to the LAA signal is large; and under the condition that the interference of the wifi signal to the LAA signal is small, the report information is not sent. Therefore, the network equipment can reasonably distribute the resources, and the resource utilization rate is improved, or the throughput of the network equipment is improved.
Drawings
FIG. 1 is a schematic diagram of a communication system of the present application;
FIG. 2 is a schematic diagram of an application scenario of the present application;
FIG. 3 is a schematic diagram of another application scenario of the present application;
FIG. 4 is a schematic flow chart diagram of a communication method of an embodiment of the present application;
FIG. 5 is a schematic diagram of a communication method according to an embodiment of the present application;
FIG. 6 is a schematic block diagram of a communications device of one embodiment of the present application;
fig. 7 is a schematic configuration diagram of a communication apparatus of an embodiment of the present application;
fig. 8 is a schematic block diagram of a communication device of another embodiment of the present application;
fig. 9 is a schematic block diagram of a communication device of yet another embodiment of the present application;
fig. 10 is a schematic block diagram of a communication device of yet another embodiment of an embodiment of the present application;
fig. 11 is a schematic block diagram of a communication apparatus of yet another embodiment of an embodiment of the present application;
fig. 12 is a schematic block diagram of a communication apparatus of yet another embodiment of an embodiment of the present application;
fig. 13 is a schematic block diagram of a communication apparatus according to still another embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, future fifth generation (5G) or new radio NR systems, etc.
By way of example and not limitation, in this application embodiment, a terminal in this application embodiment may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal may 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), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in the embodiments of the present application, and the following embodiments do not distinguish.
By way of example and not limitation, in the embodiments of the present application, the terminal may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.
In addition, in the embodiment of the present application, the terminal may also be a terminal in an internet of things (IoT) system, the IoT is an important component of future information technology development, and the main technical feature of the present application is to connect an article with a network through a communication technology, so as to implement an intelligent network with interconnected human-computer and interconnected objects.
In the embodiment of the present application, the IOT technology may achieve massive connection, deep coverage, and power saving for the terminal through, for example, a Narrowband (NB) technology. For example, the NB includes only one Resource Block (RB), i.e., the bandwidth of the NB is only 180 KB. The communication method according to the embodiment of the application can effectively solve the problem of congestion of the IOT technology mass terminals when the mass terminals access the network through the NB.
In addition, in the application, the terminal may further include sensors such as an intelligent printer, a train detector, and a gas station, and the main functions include collecting data (part of the terminal), receiving control information and downlink data of the network device, and sending electromagnetic waves to transmit uplink data to the network device.
The network device in the embodiment of the present application may be a device for communicating with a terminal, the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (NodeB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved Node B (NB), eNB or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, an Access Point (AP), a wifi signal source device, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a PLMN network in the future, and the like, and may also be an evolved node b (WLAN) in a WLAN network, the present invention is not limited to the gNB in a New Radio (NR) system.
In addition, in this embodiment of the present application, a network device provides a service for a cell, and a terminal communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell (small cell), where the small cell may include: urban cell (metro cell), micro cell (microcell), pico cell (pico cell), femto cell (femto cell), etc., and these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission service.
In addition, multiple cells can simultaneously work at the same frequency on a carrier in an LTE system or a 5G system, and under some special scenes, the concepts of the carrier and the cells can also be considered to be equivalent. For example, in a Carrier Aggregation (CA) scenario, when a secondary carrier is configured for a UE, a carrier index of the secondary carrier and a Cell identification (Cell ID) of a secondary Cell operating on the secondary carrier are carried at the same time, and in this case, the concepts of the carrier and the Cell may be considered to be equivalent, for example, it is equivalent that the UE accesses one carrier and one Cell.
The core network device may be connected with a plurality of network devices for controlling the network devices, and may distribute data received from a network side (e.g., the internet) to the network devices.
In addition, in the present application, the network device may include a base station (gNB), such as a macro station, a micro base station, an indoor hotspot, a relay node, and the like, and functions to transmit radio waves to the terminal, on one hand, to implement downlink data transmission, and on the other hand, to transmit scheduling information to control uplink transmission, and to receive radio waves transmitted by the terminal and receive uplink data transmission.
The functions and specific implementations of the terminal, the access network device and the core network device listed above are merely exemplary illustrations, and the present application is not limited thereto.
In the embodiment of the application, the terminal or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the execution subject can communicate with the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution subject of the method provided by the embodiment of the present application may be a terminal or a network device, or a functional module capable of calling the program and executing the program in the terminal or the network device.
In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.).
In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.
In this case, the application program executing the communication method according to the embodiment of the present application and the application program controlling the receiving end device to complete the action corresponding to the received data may be different application programs.
Fig. 1 is a schematic diagram of a communication system of the present application. The communication system in fig. 1 may include at least one terminal (e.g., terminal 10, terminal 20, terminal 30, terminal 40, terminal 50, and terminal 60) and a network device 70. The network device 70 is configured to provide a communication service to a terminal and access a core network, and the terminal may access the network by searching for a synchronization signal, a broadcast signal, and the like transmitted by the network device 70, thereby performing communication with the network. The terminals 10, 20, 30, 40 and 60 in fig. 1 may perform uplink and downlink transmissions with the network device 70. For example, the network device 70 may transmit a downlink signal to the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60, or may receive an uplink signal transmitted by the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60.
The terminal 40, the terminal 50, and the terminal 60 may be regarded as one communication system, and the terminal 60 may transmit a downlink signal to the terminal 40 and the terminal 50 or may receive an uplink signal transmitted by the terminal 40 and the terminal 50.
Fig. 2 is a schematic diagram of an application scenario of the present application. As shown in fig. 2, when the network device communicates with the terminal, the wifi signal source also communicates with the terminal through the beacon frame, so that the communication between the network device and the terminal device may be interfered by the beacon frame, and the error rate of the terminal receiving the signal sent by the network device is higher, that is, the resource utilization rate of the resource occupied by the communication between the terminal and the network device is not high.
For example, in a particular location (e.g., a tourist area), the wifi signal source can be regarded as a wifi hotspot carried by a subset of many tourists, and the terminal can be regarded as a mobile phone of the user. Due to the fact that the time for using wifi in the tourism sightseeing process is short in accumulation, most wifi hotspots are in a sleep interception state, and each wifi signal causes interference to a downlink signal sent by a mobile phone receiving base station. That is to say, due to the interference of the wifi signal, the error rate of the mobile phone signal is high, that is, the resource utilization rate of the resource occupied by the communication between the mobile phone and the base station is not high.
Alternatively, the communication between the terminal and the network device may be a Licensed Assisted Access (LAA) communication, and the signal transmitted by the network device received by the terminal may be an LAA signal. For example, as shown in fig. 3, LAA supports only downlink traffic and is a secondary cell that provides service in the form of carrier aggregation together with a primary cell on a licensed spectrum.
It should be noted that the terminal and the network device may communicate with each other through an LAA signal, and the LAA signal may be an LAA frame. The LAA frames are structured as frame structure type 3(frame structure type3), each LAA frame includes a plurality of data subframes (data bursts), and there may be discontinuities between adjacent data subframes.
Fig. 4 shows a schematic flow chart of a communication method of an embodiment of the present application.
The network device transmits LAA signals over unlicensed spectrum resources 401. Accordingly, the first terminal receives the LAA signal over the unlicensed spectrum resource.
Specifically, the unlicensed spectrum resource may be a 5GHz band, a 2.4GHz band, or other bands, which is not limited in this application.
402, the first terminal receives a wifi signal through the unlicensed spectrum resource. Accordingly, the interfering device sends wifi signals through the unlicensed spectrum resource.
Specifically, the interference device may be a network device, a relay device, a wifi signal source, a terminal, or the like, which is not limited in this application. In addition, in the case that the interfering device is a network device, the network device sending the wifi signal may be the same as the network device sending the LAA signal, that is, the LAA signal sent by one network device is interfered by other signals sent by the network device.
It should be noted that step 401 and step 402 may be simultaneously transmitted to the first terminal.
It should be understood that the wifi signal in the embodiment of the present application may be a beacon frame, or may also be a data frame or a control frame, for convenience of description, the beacon frame is taken as an example for explanation in the embodiment of the present application, but the present application does not limit this.
And 403, the first terminal determines whether to send report information according to the energy difference between the LAA signal and the wifi signal, where the report information is used for the network device to update resource allocation.
Specifically, the first terminal receives the LAA signal, and may determine the energy of the received LAA signal. In addition, the first terminal receives the wifi signal, and the energy of the received wifi signal can be determined. When the difference between the energy of the LAA signal and the energy of the wifi signal satisfies a certain condition, the first terminal may send the report information, in other words, the first terminal may send the report information under the condition that it is determined that the wifi signal has a large influence on the LAA signal. And under the condition that the condition is not met, the first terminal does not send the report information.
It should be appreciated that the first terminal may not send the reporting information may be to discard the reporting information.
It should be further understood that, the first terminal may also determine whether to send the report information according to the energy difference between the wifi signal and the LAA signal, that is, the energy difference between the energy of the wifi signal and the energy of the LAA signal is subtracted, for convenience of description, the following embodiment takes the energy difference between the energy of the LAA signal and the energy of the wifi signal as an example for description, but the present application does not limit this.
Optionally, in step 403, it may be determined whether to send the report information according to a magnitude relationship between the energy of the LAA signal and the energy difference between the wifi signal and a preset energy difference.
Specifically, the first terminal may send the report information when an energy difference between the LAA signal and the wifi signal is greater than a preset energy difference, and accordingly, the first terminal does not send the report information when the energy difference is less than or equal to the preset energy difference. Or the first terminal may send the report information when the energy difference between the LAA signal and the wifi signal is less than or equal to a preset energy difference, and accordingly, the report information is not sent when the energy difference is greater than the preset energy difference.
Optionally, the preset energy difference may be an energy difference corresponding to a preset error rate of the LAA signal.
Specifically, the energy difference between the energy of the different LAA signals and the energy of the wifi signal corresponds to the error rate of the different LAA signals, and the preset energy difference may be an energy difference corresponding to the error rate required by the user.
For example, when the MCS is 27, the first terminal may measure in advance a corresponding relationship between different energy difference values and the error rate of the wifi signal, where specific values may be as shown in table 1 below. Therefore, the first terminal can determine the preset energy difference value according to the required bit error rate.
TABLE 1
Figure BDA0001835384860000101
Figure BDA0001835384860000111
It should be understood that the predetermined error rate may be the maximum error rate allowed by the first terminal, or may be an error rate up to one hundred percent.
Optionally, the energy of the LAA signal and the energy of the wifi signal may be represented by a Received Signal Strength Indicator (RSSI) of the LAA signal and an RSSI of the wifi signal, so that the first terminal may determine whether to send the report information according to a difference between the RSSI of the LAA signal and the RSSI of the wifi signal.
It should be noted that the determination of the RSSI of the LAA signal or the RSSI of the wifi signal by the terminal may be performed by a measurement module in the terminal. Wherein the measurement module may be a module of a physical layer.
Alternatively, the first terminal may determine the RSSI of the wifi signal from the difference between the RSSI of the received mixed wifi signal and LAA signal and the RSSI of the received LAA signal alone.
Specifically, the first terminal receives an individual LAA signal and determines the RSSI of the LAA signal, and under the condition of interference, the RSSI value of the signal received by the first terminal is gradually increased, namely the first terminal can determine the energy of a mixed signal of the received wifi signal and the LAA signal and the energy of the individual received LAA signal, and the energy of the received wifi signal is determined according to the difference value of the received wifi signal and the energy difference value of the received wifi signal.
For example, as shown in FIG. 5, the energy of the LAA signal is RSSI, the energy of the mixture of the LAA signal and the wifi signal is RSSI1, the energy of the wifi signal is RSSI1-RSSI, and the energy difference between the LAA signal and the wifi signal is RSSI- (RSSI 1-RSSI).
It should be noted that, for a plurality of wifi signals with different transmission periods, the terminal may determine the influence of each wifi signal on the LAA signal, that is, determine the energy difference between the LAA signal and each wifi signal.
Optionally, the network device may further send an interference measurement signaling, and the terminal receives the interference measurement signaling and starts measurement of the wifi signal according to the interference measurement signaling.
Specifically, the terminal starting wifi signal measurement according to the interference measurement signaling may start wifi signal measurement immediately upon receiving the interference measurement signaling, or start wifi signal measurement after a preset time interval. Initiating wifi signal measurement may be determining RSSI of the LAA signal and RSSI of the wifi signal.
Optionally, the interference measurement signaling carries a correspondence between a sleep period of at least one wifi signal and at least one mapping relationship, where each mapping relationship in the at least one mapping relationship is a mapping relationship between at least one energy difference value and at least one bit error rate.
Specifically, the mapping relationship may be a table, that is, each mapping relationship is a table including a one-to-one correspondence relationship between a plurality of energy difference values and a plurality of error rates. In addition, the sleep periods of different wifi signals respectively correspond to one table, that is, the interference measurement signaling can carry multiple tables corresponding to multiple sleep periods of wifi signals. Thus, the first terminal can determine the corresponding table according to the sleep period of the wifi signal. That is to say, after determining the dormancy period of the wifi signal, the first terminal determines a preset energy difference value corresponding to a required preset error rate according to a table corresponding to the dormancy period.
It should be noted that, the lookup of the corresponding table according to the sleep period of the wifi signal may be performed by a protocol stack in the terminal.
Optionally, the network device may further determine the area for sending the interference measurement signaling according to the length of the sending period of the wifi signal. That is, different periods of transmission of the wifi signal correspond to different regions (e.g., different cells), respectively. Therefore, the network equipment can send the interference measurement signaling to the corresponding partial area according to the length of the sending time period of the wifi signal.
404, the first terminal sends the report information to the network device when determining that the report information needs to be sent. Accordingly, the network device receives the report information.
Optionally, if the wifi signal is periodically sent, the first terminal may further determine a dormant period of the wifi signal in a period, and the reported information carries the dormant period.
Specifically, if the wifi signal is periodically transmitted, the first terminal determines a transmission time period and a sleep time period of the wifi signal according to a plurality of periods. For example, if the sleep period of the wifi signal is about 100ms, the first terminal records about 20 cycles, and can determine the duration of the specific sleep period of the wifi signal.
If the sending time interval is a value agreed by a protocol, only the dormant time interval can be carried in the reported information. For example, the transmission period of the beacon frame is fixed to 56 μ s in the 802.11a/g standard.
It should be noted that the determination of the sending period or the sleep period of the wifi signal may also be performed by the measurement module of the first terminal.
Optionally, if the wifi signal is sent periodically, the first terminal may further determine a sending time period and a dormant time period of the wifi signal in a cycle, and the reported information carries the dormant time period and the sending time period of the wifi signal.
Specifically, if the wifi signal is periodically transmitted, the first terminal determines a transmission time period and a sleep time period of the wifi signal according to a plurality of periods. In addition, when the sending period of the wifi signal is not agreed by the first terminal and the network device, the reporting information carries the dormant period of the wifi signal and the sending period of the wifi signal.
It should be noted that the granularity of the sleep period or the transmission period may be at least one of a subframe, a slot, a mini slot, or a symbol, which is not limited in this application. Further, in a case where the transmission period or the sleep period of the wifi signal is performed by the measurement module of the first terminal, the granularity of the period may be determined by the accuracy of the measurement module.
405, the network device updates resource allocation according to the reported information.
Specifically, after receiving the report information, the network device may send the resource originally used for communicating with the first terminal to other devices, which is beneficial to improving the utilization of the resource.
It should be understood that the network device may also leave the resource for communication between the first terminal and the network device empty, and reuse the resource when communication between other devices is required, which is not limited in this application.
Optionally, the network device may allocate the resource to a second terminal, which may be a device that is not interfered by the wifi signal.
Optionally, the network device may further start a timer when sending the LAA signal, and update resource allocation according to the report information when receiving the report information before the timer expires. If the report information is received after the timer is overtime, the resource allocation is not updated.
It should be noted that the length of the preset duration of the timer may correspond to the speed of resource allocation, that is, when the preset duration of the timer is longer, the timer may correspond to slower resource allocation, and when the preset duration is shorter, the timer may correspond to longer resource allocation. Optionally, the preset time duration may be determined by a scenario in which the first terminal is located, for example, if the first terminal is in a busy communication segment, the preset time duration may be set to be longer in order to speed up resource allocation, and if the first terminal is in an idle communication segment, the preset time duration may be set to be shorter.
Optionally, in a case that the reporting information includes a sleep period of the wifi signal, the network device may schedule a sending period of the wifi signal to the non-interfered device at intervals of the sleep period.
It should be noted that, at the sending time of the wifi signals, the network device may not distinguish the wifi signals when the sending time period is predetermined by the network device and the terminal.
Therefore, in the communication method of the embodiment of the application, the site receives the LAA signal and the wifi signal, determines whether to send the report information according to the energy difference between the LAA signal and the wifi signal, and sends the report information for indicating the update of resource allocation to the network device under the condition that the interference of the wifi signal to the LAA signal is large; under the condition that the interference of the wifi signal to the LAA signal is small, the report information is not sent, so that the network equipment can be favorably and reasonably allocated with resources, the resource utilization rate is improved, or the throughput of the network equipment is improved.
It should also be understood that, in the present application, "when …", "if" and "if" all refer to the fact that the UE or the base station will perform the corresponding processing under certain objective conditions, and are not limited time, and do not require the UE or the base station to perform certain judgment actions, nor do they mean that there are other limitations.
It should also be understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
Having described the communication method according to the embodiment of the present application in detail above, the communication apparatus of the embodiment of the present application will be described below.
Fig. 6 shows a schematic block diagram of a communication device 600 of an embodiment of the present application.
It is to be understood that the apparatus 600 may correspond to the terminal in the embodiment shown in fig. 4, and may have any function of the terminal in the method. The apparatus 600 includes a transceiver module 610 and a processing module 620.
The transceiver module 610 is configured to receive a wifi signal of a wireless network and an unlicensed auxiliary access LAA signal through an unlicensed spectrum resource;
the processing module 620 is configured to determine whether to send report information according to an energy difference between the LAA signal and the wifi signal, where the report information is used for the network device to update resource allocation.
Optionally, the processing module 620 is specifically configured to:
and determining whether to send the report information according to the magnitude relation between the energy difference value of the LAA signal and the wifi signal and a preset energy difference value.
Optionally, the processing module 620 is specifically configured to:
and controlling the transceiver module 610 to send the report information when the energy difference between the LAA signal and the wifi signal is greater than the preset energy difference.
Optionally, the preset energy difference is an energy difference corresponding to a preset error rate of the LAA signal.
Optionally, the wifi signal is sent periodically, and the processing module 620 is further configured to determine a sleep period of the wifi signal in one cycle;
wherein, the reported information carries the dormant time interval.
Optionally, the wifi signal is sent periodically, and the processing module 620 is further configured to determine a sending period and a sleep period of the wifi signal in one cycle;
wherein, the reporting information carries the dormant period and the sending period.
Optionally, the processing module 620 is specifically configured to:
determining the difference value between the RSSI of the LAA signal and the RSSI of the wifi signal according to the RSSI of the LAA signal and the RSSI of the wifi signal and the RSSI of the LAA signal;
and determining the difference value of the RSSI of the LAA signal and the RSSI of the wifi signal as the energy difference value of the LAA signal and the wifi signal.
Optionally, the processing module 620 is further configured to receive an interference measurement instruction;
the processing module 620 is specifically configured to:
and determining the Received Signal Strength Indication (RSSI) of the LAA signal and the RSSI of the wifi signal according to the interference measurement instruction.
Optionally, the interference measurement instruction carries a correspondence between at least one sleep period of the wifi signal and at least one mapping relationship, where each mapping relationship in the at least one mapping relationship is a mapping relationship between at least one energy difference value and at least one bit error rate.
Therefore, in the communication device of the embodiment of the application, the terminal receives the LAA signal and the wifi signal through the unlicensed spectrum resource, and determines whether to send the report information according to the energy difference between the LAA signal and the wifi signal, that is, sends the report information for indicating to update resource allocation to the network device under the condition that the interference of the wifi signal to the LAA signal is large; and under the condition that the interference of the wifi signal to the LAA signal is small, the report information is not sent. Therefore, the network equipment can reasonably distribute the resources, and the resource utilization rate is improved, or the throughput of the network equipment is improved.
Fig. 7 shows a schematic block diagram of a communication apparatus 700 provided in an embodiment of the present application, where the apparatus 700 may be the terminal described in fig. 1 and the terminal described in fig. 4. The apparatus may employ a hardware architecture as shown in fig. 7. The apparatus may include a processor 710 and a transceiver 720, and optionally a memory 730, the processor 710, the transceiver 720, and the memory 730 communicating with each other via an internal connection path. The related functions implemented by the processing module 620 in fig. 6 may be implemented by the processor 710, and the related functions implemented by the transceiver module 610 may be implemented by the processor 710 controlling the transceiver 720.
Alternatively, the processor 710 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a special-purpose processor, or one or more integrated circuits for executing the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions). For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of the software program.
Optionally, the processor 710 may include one or more processors, for example, one or more Central Processing Units (CPUs), and in the case that the processor is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
The transceiver 720 is used for transmitting and receiving data and/or signals, as well as receiving data and/or signals. The transceiver may include a transmitter for transmitting data and/or signals and a receiver for receiving data and/or signals.
The memory 730 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an Erasable Programmable Read Only Memory (EPROM), and a compact disc read-only memory (CD-ROM), and the memory 730 is used for storing relevant instructions and data.
The memory 730 is used for storing program codes and data of the terminal, and may be a separate device or integrated in the processor 710.
Specifically, the processor 710 is configured to control the transceiver to perform information transmission with a network device. Specifically, reference may be made to the description of the method embodiment, which is not repeated herein.
It will be appreciated that fig. 7 only shows a simplified design for a communication device. In practical applications, the apparatus may also include other necessary elements respectively, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals capable of implementing the present application are within the protection scope of the present application.
In one possible design, the apparatus 700 may be a chip, such as a communication chip that may be used in a terminal to implement the relevant functions of the processor 710 in the terminal. The chip can be a field programmable gate array, a special integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit and a microcontroller which realize related functions, and can also adopt a programmable controller or other integrated chips. The chip may optionally include one or more memories for storing program code that, when executed, causes the processor to implement corresponding functions.
In particular implementations, apparatus 700 may also include an output device and an input device, as one embodiment. An output device is in communication with processor 710 and may display information in a variety of ways. For example, the output device may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. An input device is in communication with the processor 601 and may receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.
Fig. 8 shows a schematic block diagram of a communication device 800 of an embodiment of the present application.
It is understood that the apparatus 800 may correspond to the network device in the embodiment shown in fig. 4, and may have any function of the network device in the method. The apparatus 800 includes a transceiver module 810 and a processing module 820.
The transceiver module 810 is configured to transmit a wireless network wifi signal through an unlicensed spectrum resource;
the transceiver module 810 is further configured to receive reporting information, where the reporting information is sent by the first terminal according to an energy difference between the wifi signal and an unlicensed auxiliary access LAA signal;
the processing module 820 is configured to update resource allocation according to the report information.
Optionally, the wifi signal is sent periodically, and the reporting information includes a sleep period of the wifi signal.
Optionally, the wifi signal is sent periodically, and the reporting information includes a sleep period of the wifi signal and a sending period of the wifi signal.
Optionally, the processing module 820 is specifically configured to:
starting a timer when the LAA signal is transmitted;
and before the timer is overtime, updating the resource allocation according to the reported information.
Optionally, the processing module 820 is specifically configured to:
and allocating resources to a second terminal according to the reported information, wherein the second terminal is a device which is not interfered by the wifi signal.
Optionally, the transceiver module 810 is further configured to send an interference measurement instruction, where the interference measurement instruction is used to instruct a station to determine whether to send reporting information.
Optionally, the interference measurement instruction carries a correspondence between at least one sleep period of the wifi signal and at least one mapping relationship, where each mapping relationship in the at least one mapping relationship is a mapping relationship between at least one energy difference value and at least one bit error rate.
Therefore, in the communication apparatus of the embodiment of the application, the network device sends the LAA signal to the first terminal through the unlicensed spectrum resource and receives the report information sent by the first terminal according to the energy difference between the LAA signal and the wifi signal, which is beneficial for the network device to reasonably update resource allocation, and improves the resource utilization rate or the throughput of the network device.
Fig. 9 illustrates a communication apparatus 900 provided in an embodiment of the present application, where the apparatus 900 may be a network device described in fig. 1 and fig. 4. The apparatus may employ a hardware architecture as shown in fig. 9. The apparatus may include a processor 910 and a transceiver 920, and optionally a memory 930, the processor 910, the transceiver 920, and the memory 930 being in communication with each other via an internal connection path. The related functions implemented by the processing module 820 in fig. 8 can be implemented by the processor 910, and the related functions implemented by the transceiver module 810 can be implemented by the processor 910 controlling the transceiver 920.
Alternatively, the processor 910 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a special-purpose processor, or one or more integrated circuits for executing the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions). For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of the software program.
Optionally, the processor 910 may include one or more processors, for example, one or more Central Processing Units (CPUs), and in the case that the processor is one CPU, the CPU may be a single-core CPU, or a multi-core CPU.
The transceiver 920 is used for transmitting and receiving data and/or signals, and receiving data and/or signals. The transceiver may include a transmitter for transmitting data and/or signals and a receiver for receiving data and/or signals.
The memory 930 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an Erasable Programmable Read Only Memory (EPROM), and a compact disc read-only memory (CD-ROM), and the memory 930 is used for storing relevant instructions and data.
The memory 930, which is used to store program codes and data of the terminal, may be a separate device or integrated into the processor 910.
Specifically, the processor 910 is configured to control the transceiver to perform information transmission with a network device. Specifically, reference may be made to the description of the method embodiment, which is not repeated herein.
In particular implementations, apparatus 900 may also include an output device and an input device, as one embodiment. An output device, which is in communication with the processor 910, may display information in a variety of ways. For example, the output device may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. An input device is in communication with the processor 601 and may receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.
It will be appreciated that fig. 9 only shows a simplified design for a communication device. In practical applications, the apparatus may also include other necessary elements respectively, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals capable of implementing the present application are within the protection scope of the present application.
In one possible design, the apparatus 900 may be a chip, such as a communication chip that may be used in a terminal, and is used for implementing the relevant functions of the processor 910 in the terminal. The chip can be a field programmable gate array, a special integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit and a microcontroller which realize related functions, and can also adopt a programmable controller or other integrated chips. The chip may optionally include one or more memories for storing program code that, when executed, causes the processor to implement corresponding functions.
The embodiment of the application also provides a device which can be a terminal or a circuit. The apparatus may be configured to perform the actions performed by the terminal in the above-described method embodiments.
Optionally, when the apparatus in this embodiment is a terminal, fig. 10 illustrates a simplified structural diagram of the terminal. For ease of understanding and illustration, in fig. 10, the terminal is exemplified by a mobile phone. As shown in fig. 10, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminals may not have input/output devices.
When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 10. In an actual end product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.
In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal, and the processor having the processing function may be regarded as a processing unit of the terminal. As shown in fig. 10, the terminal includes a transceiving unit 1010 and a processing unit 1020. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device for implementing the receiving function in the transceiving unit 1010 may be regarded as a receiving unit, and a device for implementing the transmitting function in the transceiving unit 1010 may be regarded as a transmitting unit, that is, the transceiving unit 1010 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.
It should be understood that the transceiver unit 1010 is configured to perform the transmitting operation and the receiving operation on the terminal side in the above-described method embodiments, and the processing unit 1020 is configured to perform other operations on the terminal in addition to the transceiving operation in the above-described method embodiments.
For example, in one implementation, the processing unit 1020 is configured to perform the operations in step 403 in fig. 4, and/or the processing unit 1020 is further configured to perform other processing steps at the terminal side in the embodiment of the present application. The transceiving unit 1010 is configured to perform transceiving operations in step 401, step 402, and/or step 404 in fig. 4, and/or the transceiving unit 1010 is further configured to perform other transceiving steps at the terminal side in the embodiment of the present application.
When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.
Optionally, when the apparatus is a terminal, reference may also be made to the device shown in fig. 11. As an example, the device may perform functions similar to processor 1010 of FIG. 10. In fig. 11, the apparatus includes a processor 1101, a transmit data processor 1103, and a receive data processor 1105. The processing module 610 and the processing module 1320 in the above embodiments may be the processor 1101 in fig. 11, and perform corresponding functions. The transceiver 620 and the transceiver 610 in the above embodiments may be the sending data processor 1103 and the receiving data processor 1105 in fig. 11. Although fig. 11 shows a channel encoder and a channel decoder, it is understood that these blocks are not limitative and only illustrative to the present embodiment.
Fig. 12 shows another form of the present embodiment. The processing device 1200 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may act as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 1203, an interface 1204. The processor 1203 completes the functions of the processing module 610, and the interface 1204 completes the functions of the transceiver module 620. As another variation, the modulation subsystem includes a memory 1206, a processor 1203, and a program stored on the memory and executable on the processor, where the processor executes the program to implement the method of one of the first to fifth embodiments. It should be noted that the memory 1206 may be non-volatile or volatile, and may be located within the modulation subsystem or within the processing device 1200, as long as the memory 1206 can be connected to the processor 1203.
When the apparatus in this embodiment is a network device, the network device may be as shown in fig. 13, where the apparatus 1300 includes one or more radio frequency units, such as a Remote Radio Unit (RRU) 1310 and one or more baseband units (BBUs) (which may also be referred to as digital units, DUs) 1320. The RRU 1310 may be referred to as a transceiver module, which corresponds to the transceiver module 810 in fig. 8, and optionally may also be referred to as a transceiver, a transceiver circuit, or a transceiver, which may include at least one antenna 1311 and a radio frequency unit 1312. The RRU 1310 is mainly used for transceiving radio frequency signals and converting the radio frequency signals into baseband signals, for example, for sending indication information to a terminal device. The BBU 1310 part is mainly used for performing baseband processing, controlling a base station, and the like. The RRU 1310 and the BBU 1320 may be physically located together or physically located separately, i.e. distributed base stations.
The BBU 1320 is a control center of a base station, and may also be referred to as a processing module, and may correspond to the processing module 820 in fig. 8, and is mainly used for completing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like. For example, the BBU (processing module) may be configured to control the base station to perform an operation procedure related to the network device in the foregoing method embodiment, for example, to generate the foregoing indication information.
In an example, the BBU 1320 may be formed by one or more boards, and the boards may support a radio access network of a single access system (e.g., an LTE network) together, or may support radio access networks of different access systems (e.g., an LTE network, a 5G network, or other networks) respectively. The BBU 1320 also includes a memory 1321 and a processor 1322. The memory 1321 is used to store the necessary instructions and data. The processor 1322 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation procedure related to the network device in the above-described method embodiment. The memory 1321 and processor 1322 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.
As another form of the present embodiment, there is provided a computer-readable storage medium having stored thereon instructions that, when executed, perform the method of the above-described method embodiments.
As another form of the present embodiment, there is provided a computer program product containing instructions that, when executed, perform the method of the above-described method embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.
It should be understood that the processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct bus RAM (DR RAM).
In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).
It should also be understood that the reference herein to first, second, and various numerical designations is merely a convenient division to describe and is not intended to limit the scope of the embodiments of the present application.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. Wherein A or B is present alone, and the number of A or B is not limited. Taking the case of a being present alone, it is understood to have one or more a.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (23)

1. A method of communication, comprising:
the method comprises the steps that a first terminal receives a wireless network wifi signal and an unlicensed auxiliary access LAA signal through unlicensed spectrum resources;
the first terminal determines whether to send report information according to the energy difference value of the LAA signal and the wifi signal, wherein the report information is used for updating resource allocation of the network equipment;
the wifi signal is sent periodically, and the method further comprises:
the first terminal determines the dormant period of the wifi signal in one cycle;
the reporting information carries the dormant period, and the dormant period is used for the network device to schedule the sending period of the wifi signal to an undisturbed device at intervals of the dormant period.
2. The method of claim 1, wherein the determining, by the first terminal, whether to send the report information according to the energy difference between the LAA signal and the wifi signal comprises:
and the first terminal determines whether to send the report information according to the magnitude relation between the energy difference value of the LAA signal and the wifi signal and a preset energy difference value.
3. The method of claim 2, wherein the determining, by the first terminal, whether to send the report information according to a magnitude relationship between an energy difference value between the LAA signal and the wifi signal and a preset energy difference value comprises:
and the first terminal sends the report information under the condition that the energy difference value between the LAA signal and the wifi signal is greater than the preset energy difference value.
4. The method according to claim 2 or 3, wherein the predetermined energy difference is an energy difference corresponding to a predetermined error rate of the LAA signal.
5. The method of claim 2 or 3, wherein the wifi signal is sent periodically, the method further comprising:
the first terminal determines the sending time interval and the dormancy time interval of the wifi signal in one cycle;
wherein the reporting information carries the dormant period and the sending period.
6. The method according to any one of claims 1 to 3, further comprising:
the first terminal determines the difference value between the RSSI of the LAA signal and the RSSI of the wifi signal according to the received signal strength indication RSSI of the LAA signal and the received signal strength indication RSSI of the wifi signal and the RSSI of the LAA signal;
and the first terminal determines the difference value of the RSSI of the LAA signal and the RSSI of the wifi signal as the energy difference value of the LAA signal and the wifi signal.
7. A method of communication, comprising:
sending a wireless network wifi signal through the unlicensed spectrum resource;
receiving reporting information, wherein the reporting information is sent by a first terminal according to an energy difference value of the wifi signal and an unauthorized auxiliary access LAA signal, the wifi signal is sent periodically, and the reporting information comprises a dormant period of the wifi signal;
updating resource allocation according to the reported information, comprising:
and scheduling the sending period of the wifi signal to an undisturbed device at intervals of the sleep period.
8. The method of claim 7, wherein the wifi signal is sent periodically, and the report information includes a sleep period of the wifi signal and the wifi signal sending period.
9. The method according to claim 7 or 8, characterized in that the method further comprises:
starting a timer when the LAA signal is transmitted;
wherein, according to the reported information, updating the resource allocation comprises:
and before the timer is overtime, updating the resource allocation according to the reported information.
10. The method of claim 7 or 8, wherein the updating resource allocation according to the reporting information comprises:
and allocating resources to a second terminal according to the reported information, wherein the second terminal is a device which is not interfered by the wifi signal.
11. A communications apparatus, comprising:
the receiving and sending module is used for receiving wireless network wifi signals and authorization-free auxiliary access LAA signals through authorization-free frequency spectrum resources;
the processing module is used for determining whether to send report information according to the energy difference value of the LAA signal and the wifi signal, wherein the report information is used for updating resource allocation of network equipment;
the wifi signal is sent periodically, and the processing module is further used for determining a dormant period of the wifi signal in one period;
the reporting information carries the dormant period, and the dormant period is used for the network device to schedule the sending period of the wifi signal to an undisturbed device at intervals of the dormant period.
12. The apparatus of claim 11, wherein the processing module is specifically configured to:
and determining whether to send the report information according to the magnitude relation between the energy difference value of the LAA signal and the wifi signal and a preset energy difference value.
13. The apparatus of claim 12, wherein the processing module is specifically configured to:
and controlling the transceiver module to send the report information under the condition that the energy difference value between the LAA signal and the wifi signal is greater than the preset energy difference value.
14. The apparatus according to claim 12 or 13, wherein the predetermined energy difference is an energy difference corresponding to a predetermined error rate of the LAA signal.
15. The apparatus of claim 12 or 13, wherein the wifi signal is periodically transmitted, and the processing module is further configured to determine a transmission period and a sleep period of the wifi signal in one cycle;
wherein the reporting information carries the dormant period and the sending period.
16. The apparatus according to any one of claims 11 to 13, wherein the processing module is specifically configured to:
determining a difference value between the RSSI of the LAA signal and the RSSI of the wifi signal according to the received signal strength indication RSSI of the LAA signal and the received signal strength indication RSSI of the wifi signal and the RSSI of the LAA signal;
and determining the difference value of the RSSI of the LAA signal and the RSSI of the wifi signal as the energy difference value of the LAA signal and the wifi signal.
17. A communications apparatus, comprising:
the receiving and sending module is used for sending wireless network wifi signals through the unlicensed spectrum resources;
the receiving and sending module is further configured to receive reporting information, the reporting information is sent by the first terminal according to an energy difference value between the wifi signal and an unauthorized auxiliary access LAA signal, the wifi signal is sent periodically, and the reporting information includes a dormant period of the wifi signal;
a processing module, configured to update resource allocation according to the report information, including:
the processing module is used for instructing the transceiver module to schedule the sending time interval of the wifi signal to an undisturbed device at intervals of the dormant time interval.
18. The apparatus of claim 17, wherein the wifi signal is periodically transmitted, and the report information comprises a sleep period of the wifi signal and the wifi signal transmission period.
19. The apparatus according to any one of claims 17 to 18, wherein the processing module is specifically configured to:
starting a timer when the LAA signal is transmitted;
and before the timer is overtime, updating the resource allocation according to the reported information.
20. The apparatus according to claim 17 or 18, wherein the processing module is specifically configured to:
and allocating resources to a second terminal according to the reported information, wherein the second terminal is a device which is not interfered by the wifi signal.
21. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 10.
22. A communications apparatus, wherein the apparatus stores instructions that, when executed, are capable of performing the method of any one of claims 1 to 10.
23. A communication device comprising a memory, a processor and a program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 10 when executing the program.
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