CN110710269A

CN110710269A - Communication method, communication device and system

Info

Publication number: CN110710269A
Application number: CN201780091344.XA
Authority: CN
Inventors: 田立超
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-07-31
Filing date: 2017-07-31
Publication date: 2020-01-17
Anticipated expiration: 2037-07-31
Also published as: WO2019023851A1; CN110710269B

Abstract

The present application provides a communication method and a communication apparatus, the communication method including: the network equipment determines the congestion condition of a first cell accessed by the terminal equipment; when the congestion state of the first cell meets a preset first condition, the network device sends first indication information to the terminal device, wherein the first indication information is used for indicating that the terminal device is forbidden to send a first access request aiming at the first cell to the network device within a first time period, so that when the network is congested, the network device sends the first indication information to the accessed terminal device for indicating that the terminal device is forbidden to re-access within a specified time after the resource is released, the situation that the terminal device is re-accessed to cause further congestion of the network can be avoided, and the congestion of the network can be relieved.

Description

Communication method, communication device and system

Technical Field

The present application relates to the field of wireless communication, and more particularly, to a communication method, a communication apparatus, and a system.

Background

With the development and progress of communication technology and the popularization of intelligent terminal equipment, the number of terminal equipment is increased in a large amount.

In addition, in the prior art, resources (for example, time domain resources or frequency domain resources) that can be used by the communication system are limited, and a situation that a large number of terminal devices simultaneously request to access the wireless network may exist, and further, the resources that can be provided by the communication system cannot meet access requirements of the large number of terminal devices that simultaneously request to access, thereby causing network congestion.

How to alleviate network congestion is an urgent problem to be solved in the industry.

Disclosure of Invention

The application provides a communication method, a communication device and a communication system, which can relieve network congestion.

In a first aspect, a communication method is provided, including: the network equipment determines the congestion condition of a first cell accessed by the terminal equipment; when the congestion status of the first cell meets a preset first condition, the network device sends first indication information to the terminal device, where the first indication information is used to indicate that the terminal device is prohibited from sending the first access request to the first cell to the network device within a first time period.

Optionally, the first access request is an access request for the first cell initiated by the terminal device for the first time after releasing the used resources of the first cell.

According to the communication method of the embodiment of the present invention, when determining that a first cell (i.e., an example of a network provided by a network device) is congested, a network device sends first indication information to a terminal device having access to the first cell, where the first indication information is used to indicate that the network device prohibits the terminal device from sending a first access request to the network device within a first time period, and the first access request is an access request for the first cell, which is initiated for the first time by the terminal device after releasing resources of the first cell used by the terminal device, so that the terminal device can be prevented from sending an access request to the network device during a network congestion period after releasing the resources, and further congestion on the network due to access of the terminal device is avoided, and further network congestion can be relieved.

Optionally, the first indication information includes information of a first duration, and the first duration is a time period with a time when the terminal device receives the first indication information as a starting point and a duration as the first duration.

According to the communication method provided by the embodiment of the invention, the terminal equipment can easily determine the first time interval by enabling the first indication information to comprise the duration of the first time interval, and the resource overhead of the transmission of the first indication information can be reduced.

Optionally, the determining, by the network device, the congestion condition of the first cell to which the terminal device is accessed includes: the network device periodically detects a first number of times, where the first number of times is the number of times of access processing failure for the first cell, or the first number of times is the number of times of Radio Resource Control (RRC) connection requests received by the network device in the first cell; the network equipment determines the congestion condition of the first cell according to the determined first number; and the first condition is that the first time is greater than or equal to a preset first threshold.

According to the communication method of the embodiment of the present invention, by causing the network device to determine the congestion status of the first cell based on the number of access processing failures for the first cell and the number of radio resource control connection requests received by the network device in the first cell, the accuracy and reliability of the determined congestion status can be improved, and the network device can be caused to easily determine the congestion status, and the practicality of the communication method of the embodiment of the present invention can be further improved.

Optionally, before the network device sends the first indication information to the terminal device when the congestion status of the first cell meets a preset first condition, the communication method further includes: the network equipment determines a one-to-one mapping relation between a plurality of numerical values and a plurality of durations; and the network equipment determines the duration corresponding to the numerical value of the first time in the plurality of durations as the duration of the first time interval according to the mapping relation.

According to the communication method provided by the embodiment of the invention, the network equipment acquires the mapping relation between the plurality of numerical values and the plurality of time lengths in advance, and the plurality of numerical values correspond to the plurality of congestion degrees one by one, so that the network equipment can find the time length corresponding to the current congestion degree of the first cell from the mapping relation according to the numerical value of the first time corresponding to the current congestion degree of the first cell, thereby flexibly determining the time length for prohibiting the terminal equipment from accessing, relieving network congestion, improving the communication efficiency of the terminal equipment and improving the user experience of the terminal equipment.

Optionally, the determining, by the network device, the congestion condition of the first cell to which the terminal device is accessed includes: the network equipment periodically detects the utilization rate of resources corresponding to the first cell; the network equipment determines the congestion condition of the first cell according to the determined utilization rate of the resource corresponding to the first cell; and the first condition is that the utilization rate of the resource corresponding to the first cell is greater than or equal to a preset second threshold value.

According to the communication method of the embodiment of the present invention, the network device determines the congestion status of the first cell based on the utilization rate of the resource corresponding to the first cell, so that the accuracy and reliability of the determined congestion status can be improved, the network device can easily determine the congestion status, and the practicability of the communication method of the embodiment of the present invention can be further improved.

Optionally, the determining, by the network device, the congestion condition of the first cell to which the terminal device is accessed includes: the network equipment periodically detects the load of the first cell; the network equipment determines the congestion condition of the first cell according to the load of the first cell; and the first condition is that the load of the first cell is greater than or equal to a preset third threshold.

According to the communication method of the embodiment of the present invention, by causing the network device to determine the congestion status of the first cell based on the load of the first cell, the accuracy and reliability of the determined congestion status can be improved, and the network device can easily determine the congestion status, and the practicality of the communication method of the embodiment of the present invention can be further improved.

Optionally, the communication method further includes: when the congestion status of the first cell meets a preset second condition, the network device sends second indication information to the terminal device, where the second indication information is used to indicate that the network device allows the terminal device to send the first access request to the network device within a first time period, and the second condition is that the first count is smaller than a preset first threshold

According to the communication method provided by the embodiment of the invention, when the network device determines that the congestion of the first cell is relieved, the network device sends the second indication information to the terminal device which is accessed to the first cell, wherein the second indication information is used for indicating the network device to allow the terminal device to send the first access request to the network device within the first time period, so that the terminal device can be ensured to send the access request to the network device during the period of no network congestion after releasing resources, the communication efficiency of the terminal device can be improved, the service access delay of the terminal device is reduced, and the user experience of the terminal device is improved.

Optionally, when the congestion status of the first cell meets a preset first condition, the network device sends first indication information to the terminal device, where the first indication information includes: the network device determines a first time interval, and sends first indication information to the terminal device when the first time interval is less than or equal to a preset first time threshold and the congestion condition of the first cell meets a preset first condition, wherein the first time interval is a time interval between the time when the terminal device releases the used resources of the first cell and the current time, which is estimated by the network device.

Optionally, when the congestion status of the first cell meets a preset first condition, the network device sends first indication information to the terminal device, where the first indication information includes: the network device determines a second time interval, and sends first indication information to the terminal device when the second time interval is greater than or equal to a preset second time threshold and the congestion condition of the first cell meets a preset first condition, wherein the second time interval is a time interval between the time of the last service access of the terminal device before the current time and the current time.

According to the communication method of the embodiment of the present invention, when the first time interval is smaller or the second time interval is larger, it indicates that the terminal device has a higher possibility of releasing the resource, that is, the terminal device has a higher possibility of re-initiating the access request, so that the effect of the communication method of the embodiment of the present invention can be further improved.

In a second aspect, a communication method is provided, including: the method comprises the steps that a terminal device receives first indication information from a network device, wherein the first indication information is used for indicating that the terminal device is forbidden to send a first access request aiming at a first cell to the network device within a first time period, the first cell is a cell accessed by the terminal device, and the first indication information is sent by the network device when the congestion condition of the first cell is determined to meet a preset first condition; and the terminal equipment prohibits sending the first access request to the network equipment within a first time interval according to the first indication information.

Optionally, the first indication information includes information of a first duration, and the communication method further includes: the terminal device determines a time period with the time when the first indication information is received as a starting point and the time length as the first time period.

Optionally, the first condition is that the first number is greater than or equal to a preset first threshold, where the first number is the number of access processing failures for the first cell, or the first number is the number of radio resource control, RRC, connection requests received by the network device in the first cell.

Optionally, the method further comprises: the terminal device receives second indication information from the network device, where the second indication information is used to indicate that the network device allows the terminal device to send the first access request to the network device within a first time period, where the first indication information is sent by the network device when it is determined that the congestion status of the first cell meets a preset second condition, and the second condition is that the first number of times is smaller than a preset first threshold; and the terminal equipment sends the first access request to the network equipment in the first time period according to the second indication information.

In a third aspect, a communication device is provided, which includes means for performing the steps of the communication method in the first aspect and the implementation manners of the first aspect.

In one design, the communication device is a communication chip that may include an input circuit or interface for sending information or data and an output circuit or interface for receiving information or data.

In another design, the communication device is a network device and the communication chip may include a transmitter to transmit information or data and a receiver to receive information or data.

In a fourth aspect, a communication device is provided, which includes means for performing the steps of the communication method in the second aspect and the implementations of the second aspect.

In another design, the communication device is a terminal device and the communication chip may include a transmitter for transmitting information or data and a receiver for receiving information or data.

In a fifth aspect, a communication device is provided, which includes a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for calling the computer program from the memory and running the computer program, so that the communication device executes the communication method in any one of the possible implementation manners of the first or second aspect.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or provided separately from the processor.

Optionally, the communication device further comprises a transmitter (transmitter) and a receiver (receiver).

In one possible design, a network device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve and execute the computer program from the memory, so that the network device performs the method of the first aspect or any one of the possible implementations of the first aspect.

In another possible design, a terminal device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve and execute the computer program from the memory, so that the terminal device executes the method of the second aspect or any possible implementation manner of the second aspect.

In a sixth aspect, a system is provided, which includes the terminal device and the network device.

In a seventh aspect, a computer program product is provided, the computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any of the possible implementations of the first or second aspect described above.

In an eighth aspect, a computer-readable medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method of any one of the possible implementations of the first or second aspect.

In a ninth aspect, a chip system is provided, which includes a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that a communication device in which the chip system is installed executes the method in any one of the possible implementation manners of the first aspect or the second aspect.

In any of the above aspects, optionally, the terminal device is an internet of things (IoT) device.

In any of the above aspects, optionally, the resources used by the first cell are narrowband NB frequency domain resources.

In any of the above aspects, optionally, the network device is an access network device, e.g., a base station.

Therefore, the terminal equipment can be prevented from sending an access request to the network equipment during the network congestion after releasing the resources, the terminal equipment is prevented from accessing to further congestion the network, and the network congestion can be relieved.

Drawings

Fig. 1 is a schematic diagram of an example of a system to which a communication method and a communication apparatus according to an embodiment of the present invention are applied.

Fig. 2 is a schematic interaction diagram of a communication method to which an embodiment of the present invention is applied.

Fig. 3 is a schematic block diagram of an example of a communication apparatus according to an embodiment of the present invention.

Fig. 4 is a schematic configuration of an example of a communication apparatus according to an embodiment of the present invention.

Fig. 5 is a schematic block diagram of another example of a communication apparatus of an embodiment of the present invention.

Fig. 6 is a schematic configuration of an example of a communication apparatus according to an embodiment of the present invention.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

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 be understood that embodiments of the present invention may be applied to various communication systems, such as: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an Advanced Long Term Evolution (LTE-a) System, a Universal Mobile telecommunications System (Universal Mobile telecommunications System, UMTS), a UMTS Local Area network (WLAN), a Wireless Fidelity (WiFi), or a next-generation communication System, etc., where the next-generation communication System may include, for example, a fifth-generation (5G) communication System.

Generally, the conventional Communication system supports a limited number of connections and is easy to implement, however, with the development of Communication technology, the mobile Communication system will support not only conventional Communication but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication.

The embodiments of the present invention are described in conjunction with a network device and a terminal device, where:

a terminal device may also be referred to as 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 device may be a Station (ST) in a WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, an in-vehicle device, a wearable device, and a next generation communication system, for example, a terminal device in a 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN) Network, and the like.

By way of example, and not limitation, in embodiments of the present invention, the terminal device 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 invention, the terminal device may also be a terminal device 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 invention is to connect an object 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 invention, the IOT technology can achieve massive connection, deep coverage, and terminal power saving through a narrowband (Narrow Band) NB technology, for example. For example, the NB includes only one Resource Block (RB), i.e., the bandwidth of the NB is only 180 KB. The communication method of the embodiment of the invention can effectively solve the congestion problem of the mass terminals in the IOT technology when accessing the network through the NB.

The network device may be a device such as a network device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay Station or an Access Point, or a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network.

In addition, in this embodiment of the present invention, a network device provides a service for a cell, and a terminal device 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 cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

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 identity (Cell identity) of a secondary Cell operating on the secondary Carrier are carried at the same time, in which case, the Carrier and the Cell may be considered to be equivalent in concept, for example, it is equivalent that the UE accesses one Carrier and one Cell.

In the embodiment of the present invention, the terminal device 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 invention does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present invention, as long as the execution main body can communicate with the method provided by the embodiment of the present invention by running the program recorded with the code of the method provided by the embodiment of the present invention, for example, the execution main body of the method provided by the embodiment of the present invention may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

Moreover, various aspects or features of embodiments of the invention 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 may include, but are not limited to: magnetic storage devices (e.g., hard disk, floppy disk, or magnetic tape), 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.

Fig. 1 is a schematic diagram of a system 100 to which a communication method according to an embodiment of the present invention can be applied. As shown in fig. 1, the system 100 includes a network device 102, and the network device 102 may include 1 antenna or multiple antennas, e.g.,

antennas

104, 106, 108, 110, 112, and 114. Additionally, network device 102 can additionally include a transmitter chain and a receiver chain, each of which can comprise a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.), as will be appreciated by one skilled in the art.

Network device 102 may communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it is understood that network device 102 may communicate with any number of terminal devices similar to terminal device 116 or terminal device 122.

End devices

116 and 122 may be, for example, cellular phones, smart phones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device for communicating over wireless communication system 100.

As shown in fig. 1, terminal device 116 is in communication with

antennas

112 and 114, where

antennas

112 and 114 transmit information to terminal device 116 over a forward link (also called a downlink) 118 and receive information from terminal device 116 over a reverse link (also called an uplink) 120. In addition, terminal device 122 is in communication with

antennas

104 and 106, where

antennas

104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

In a Frequency Division Duplex (FDD) system, forward link 118 can utilize a different Frequency band than reverse link 120, and forward link 124 can employ a different Frequency band than reverse link 126, for example.

As another example, in Time Division Duplex (TDD) systems and Full Duplex (Full Duplex) systems, forward link 118 and reverse link 120 may use a common frequency band and forward link 124 and reverse link 126 may use a common frequency band.

Each antenna (or group of antennas consisting of multiple antennas) and/or area designed for communication is referred to as a sector of network device 102. For example, antenna groups may be designed to communicate to terminal devices in a sector of the areas covered by network device 102. A network device may transmit signals to all terminal devices in its corresponding sector through single-antenna or multi-antenna transmit diversity. During communication by network device 102 with

terminal devices

116 and 122 over

forward links

118 and 124, respectively, the transmitting antennas of network device 102 may also utilize beamforming to improve signal-to-noise ratio of

forward links

118 and 124. Moreover, mobile devices in neighboring cells can experience less interference when network device 102 utilizes beamforming to transmit to

terminal devices

116 and 122 scattered randomly through an associated coverage area, as compared to a manner in which the network device transmits signals to all of its terminal devices through single-antenna or multi-antenna transmit diversity.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting apparatus and/or a wireless communication receiving apparatus. When sending data, the wireless communication sending device may encode the data for transmission. Specifically, the wireless communication transmitting device may obtain (e.g., generate, receive from other communication devices, or save in memory, etc.) a number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be contained in a transport block (or transport blocks) of data, which may be segmented to produce multiple code blocks.

In addition, the communication system 100 may be a PLMN network, a D2D network, an M2M network, an IoT network, or other networks, and fig. 1 is a simplified schematic diagram for example, and other network devices may be included in the network, which are not shown in fig. 1.

Next, a communication method 200 according to an embodiment of the present invention will be described in detail with reference to fig. 2.

In the embodiment of the present invention, the system 100 may include one or more network devices, and the actions performed by the network devices in the communication method 200 of the embodiment of the present invention are similar, and for convenience of understanding, the actions of the network device # a are taken as an example for description.

The network device # a may provide one or more cells, and for the sake of understanding, the following description will be made by taking an access control procedure for the cell # a (i.e., an example of the first cell) as an example, without loss of generality.

Furthermore, in the communication system, there may be one or more terminal devices that have accessed the cell # a, and the actions performed by the plurality of terminal devices in the communication method 200 according to the embodiment of the present invention are similar, and hereinafter, for convenience of understanding, the control procedure of the terminal device # a is described for convenience of explanation without loss of generality.

Fig. 2 is a schematic interaction diagram of a communication method 200 of an embodiment of the present invention.

In the embodiment of the present invention, the terminal apparatus # a is a terminal apparatus that has accessed to the cell # a, wherein the process of accessing may be similar to the process of accessing to the cell provided by the network apparatus by the terminal apparatus in the prior art, and here, for convenience of understanding and explanation, the detailed description thereof is omitted.

At S210, the network device # a may determine the current congestion status of the cell # a, or in other words, the network device # a may determine the congestion state of the cell # a within the detection period at the current time (hereinafter, referred to as time #1 for ease of understanding and distinction).

The "congestion status" may also be referred to as "congestion level" and may refer to whether or not the resource provided by the cell # a can satisfy the access demand of the plurality of terminal devices desiring to access the cell # a.

By way of example and not limitation, network device # a may determine the congestion condition of cell # a based on at least one of the following parameters.

Parameter a number of access process failures for cell # a detected within one detection period

Specifically, the reason for the access processing failure for a cell includes that the terminal device does not compete for the access resource, or the radio resource of the cell cannot meet the data transmission requirement of the terminal device that needs to be accessed, so that the number of access processing failures for a cell can represent the congestion condition of the cell. Therefore, in the embodiment of the present invention, the network device may periodically detect the number of access processing failures, and determine the congestion status of the cell in a period according to the number of access processing failures in the period.

In the embodiment of the present invention, when a terminal device requests to access a network device (or a cell provided by the network device), an access request is sent to the network device.

The network device may send an access request response to the terminal device based on the access request (or may also be referred to as a random access request), for example and without limitation, the access request response may include a cell temporary identifier allocated to the terminal device by the network device.

The terminal device may send a Radio Resource Control (RRC) connection request to the network device based on the access request response.

After receiving the RRC connection request, the network device sends an RRC connection request response to the terminal device.

Thus, the terminal device can determine the number of access process failures for the cell # a based on at least one of the following ways.

Mode 1

In the embodiment of the present invention, the number of times that the access process for the cell # a fails (hereinafter, for convenience of understanding and explanation, referred to as the number # a, which is an example of the first number) determined by the network device # a may be determined based on the random access request received by the network device # a.

Specifically, in the embodiment of the present invention, the Random Access may be performed based on a contention mechanism, and in an area where service Access of the terminal device occurs frequently, it inevitably occurs that multiple terminal devices contend for the same Random Access Channel (RACH), that is, the multiple terminal devices use the same RACH to transmit a Random Access request. In this case, the network device performs access processing based on the random access request with the highest level of the received burst, and for example, the network device may transmit a random access request response only to the terminal device on the transmitting side of the access request with the highest level of the burst, and the access processing of other terminal devices (that is, terminal devices other than the terminal device on the transmitting side of the access request with the highest level of the burst, among the plurality of terminal devices that transmit random access requests using the same RACH) fails. Or, the plurality of random access requests interfere with each other, and the access processing of each of the plurality of terminal devices that transmit the random access request using the same RACH fails.

That is, in the embodiment of the present invention, the number # a of access process failures for the cell # a determined by the network device # a may be the number of access process failures determined in the transmission phase of the random access request and the random access request response in the random access procedure.

Mode 2

In the embodiment of the present invention, the number of times # a may be determined based on the RRC connection request received by the network device # a.

Specifically, in the embodiment of the present invention, after receiving the RRC connection request, the network device # a may allocate a resource for establishing an RRC connection to the terminal device based on a usage situation of a cell # a resource (e.g., a time domain resource or a frequency domain resource), and carry indication information of the resource in an RRC connection request response, and send the indication information to the terminal device.

Thus, when the currently available resources (e.g., resources not occupied by the terminal) of the cell # a cannot satisfy the establishment requirement of the RRC connection, the network device # a may determine that the access process of the transmitting terminal device for the RRC connection request fails.

That is, in the embodiment of the present invention, the number # a of access process failures for the cell # a determined by the network device # a may be the number of access process failures determined in the transmission phase of the RRC connection request and the RRC connection request response in the random access procedure.

It should be understood that the above listed number # a of access process failures for the cell # a determined by the network device # a is only an exemplary illustration, the present invention is not limited thereto, and other methods and procedures enabling the network device to determine the total number of access process failures for one cell fall within the protection scope of the present invention, for example, the above mode 1 and mode 2 may also be used in combination, that is, the number # a of access process failures for the cell # a determined by the network device # a may be the sum of the number determined based on mode 1 and the number determined based on mode 2.

Thus, when the number # a of access process failures for the cell # a is greater than or equal to a preset threshold # a (i.e., an example of the first threshold) within the period in which the current time is, the network apparatus # a may determine that the cell # a is currently in the congested state.

Here, the threshold # a may be a value specified by a communication system or a communication protocol, or a specific value of the threshold # a may be obtained through experiments, and the present invention is not particularly limited. For example, the threshold # a may be determined by detecting the number of times of access processing failure for the cell # a in one cycle in a state where it is determined that the cell # a is congested and determining the threshold # a based on the detected number of times in advance, and for example, the detected number of times may be set as the threshold # a itself, or the detected number of times may be subjected to predetermined processing (for example, weighting or averaging) and the processed value may be set as the threshold # a. And, the value of the threshold # a may be different under different systems. In addition, the value of the threshold # a may be different in periods of different sizes or in periods of different time periods.

Parameter B number of RRC connection requests detected within one detection period

Specifically, the more times the network device receives the RRC connection request in a cell, the more information (e.g., control information) or data that needs to be transmitted through the cell is indicated, and since the resource of the cell is limited, the resource of the cell may not meet the transmission requirement of the information or data, which may result in congestion of the cell.

Therefore, in the embodiment of the present invention, the network device # a may periodically detect the number # B of RRC connection requests received through the cell # a, and determine the congestion status of the cell # a in a period according to the number # B detected in the period.

For example, when the number # B of RRC connection requests received through the cell # a is greater than or equal to a preset threshold # B (i.e., another instance of the first threshold) within a period in which the current time is, the network apparatus # a may determine that the cell # a is currently in the congested state.

Here, the threshold # B may be a value specified by a communication system or a communication protocol, or a specific value of the threshold # B may be obtained through experiments, and the present invention is not particularly limited. The value of the threshold # B may be different in different systems. In addition, the value of the threshold # B may be different in periods of different sizes or in periods of different time periods. For example, in a given system and period, the congestion status of cell # a can be determined for different numbers of RRC connection requests, and thus, the minimum number of RRC connection requests can be determined when cell # a is congested, and this number is used as threshold # B.

Parameter C. load of cell detected in one detection period

Specifically, in the embodiment of the present invention, the load of the cell may be determined according to the proportion of the currently occupied (or unoccupied) resources in the cell in the total resources that can be used by the cell.

The greater the load of a cell indicates that more information (e.g., control information) or data needs to be transmitted through the cell, and due to the limited resources of the cell, it may happen that the resources of the cell cannot meet the transmission requirements of the information or data, resulting in congestion of the cell.

Therefore, in the embodiment of the present invention, the network device # a may periodically detect the load of the cell # a, and determine the congestion condition of the cell # a in a period according to the detected load of the cell # a in the period.

For example, the network apparatus # a may determine that the cell # a is currently in the congested state when the load of the cell # a passing through the cell # a is greater than or equal to a preset threshold # C in a period in which the current time is.

Here, the threshold # C may be a value specified by a communication system or a communication protocol, or a specific value of the threshold # C may be obtained through experiments, and the present invention is not particularly limited. The value of the threshold # C may be different in different systems. In addition, the value of the threshold # C may be different in periods of different sizes or in periods of different time periods. For example, in a given system and period, the congestion status of the cell # a under different loads can be determined, and thus, the minimum load when the cell # a is congested can be determined, and the magnitude of the determined load can be used as the threshold # C. By way of example and not limitation, the threshold # C may be any value between 80% and 100%.

It should be understood that the above-listed parameters used by the network device # a to determine the congestion status of the cell # a are only exemplary, the present invention is not limited thereto, and other parameters enabling the network device to determine the congestion level of a cell fall within the scope of the present invention.

The parameter a, the parameter B, and the parameter C may be used individually or in combination, but the present invention is not particularly limited thereto, and for example, the network device # a may determine the congestion status of the final cell # a by integrating the congestion status determined based on the parameter a (hereinafter, referred to as congestion status # a for easy understanding and distinction), the congestion status determined based on the parameter B (hereinafter, referred to as congestion status # B for easy understanding and distinction), and the congestion status determined based on the parameter B (hereinafter, referred to as congestion status # C for easy understanding and distinction).

For example, in the embodiment of the present invention, the congestion condition of the cell # a may be characterized by a numerical value, that is, the congestion condition # a may be characterized by a numerical value # a, the congestion condition # B may be characterized by a numerical value # B, and the congestion condition C may be characterized by a numerical value # C, so that the congestion condition of the cell # a may be characterized by an average value or a weighted average value of the numerical value # a, the numerical value # B, and the numerical value # C.

As another example, the congestion condition of cell # a may include congestion and no congestion, i.e., congestion condition # a may be congested or not congested, congestion condition # B may be congested or not congested, and congestion condition # C may be congested or not congested. In this case, by way of example and not limitation, the network device # a may determine that the congestion condition of the cell # a is congestion, for example, when one or more of the congestion conditions # a, # B, and # C are congestion. For another example, when all of the congestion conditions # a, # B, and # C are uncongested, the network apparatus # a may determine that the congestion condition of the cell # a is uncongested.

Thereafter, the network apparatus # a may determine whether the congestion status of the cell # a determined as described above satisfies a preset congestion decision condition (i.e., an example of the first condition), and specifically, the network apparatus # a may determine whether the congestion status of the cell # a in the period in which the time #1 is located satisfies the preset congestion decision condition.

The congestion determination condition may be a condition for determining whether the congestion status of the cell # a is congestion.

By way of example and not limitation, when the congestion status of cell # a includes congestion and no congestion, the congestion decision condition may be: the congestion status indicates that the cell is congested, (i.e., an example of a first condition).

For example, if the congestion condition of the cell # a is congestion, the network apparatus # a may determine that the congestion condition of the cell # a satisfies the congestion determination condition.

The network apparatus # a may determine that the congestion condition of the cell # a does not satisfy the congestion determination condition if the congestion condition of the cell # a is not congested.

Alternatively, by way of example and not limitation, when the congestion condition of the cell # a is characterized by a numerical value, for example, the congestion condition of the cell # a is characterized by the number of random access processing failures, the number of RRC connection requests, or the cell load, the congestion determination condition may be: whether the value characterizing the congestion condition is greater than or equal to a preset threshold (i.e., a first threshold, such as threshold # a, threshold # B, or threshold # C described above).

For example, if the number # a of access process failures for the cell # a is greater than or equal to the threshold # a, the network apparatus # a may determine that the congestion condition of the cell # a satisfies the congestion decision condition.

The network apparatus # a may determine that the congestion condition of the cell # a does not satisfy the congestion decision condition if the number # a of access process failures for the cell # a is less than the threshold # a.

For another example, if the number # B of RRC connection requests received through the cell # a is greater than or equal to the threshold # B, the network apparatus # a may determine that the congestion condition of the cell # a satisfies the congestion determination condition.

For another example, if the number # B of RRC connection requests received through the cell # a is less than the threshold # B, the network apparatus # a may determine that the congestion condition of the cell # a does not satisfy the congestion determination condition.

For another example, if the load through the cell # a is greater than or equal to the threshold # C, the network apparatus # a may determine that the congestion condition of the cell # a satisfies the congestion determination condition.

For another example, if the load through the cell # a is less than the threshold # C, the network apparatus # a may determine that the congestion condition of the cell # a does not satisfy the congestion determination condition.

Thus, when the network device # a determines at S210 that the congestion status of the cell # a satisfies the congestion determination condition, the network device # a may determine the terminal device # a at S220.

In the embodiment of the present invention, the terminal apparatus # a is a terminal apparatus that has accessed the cell # a. One or more of the terminal apparatuses # a may be provided, and the present invention is not particularly limited.

Alternatively, the terminal apparatus # a may be a terminal apparatus that needs to frequently access or release the resource of the cell # a. For example, the terminal apparatus # a may be an IoT apparatus.

Specifically, since the IoT device has a small data volume for service access and has frequent service access, the IoT device needs to frequently access and release communication resources.

Alternatively, the terminal apparatus # a may be a terminal apparatus that the network apparatus determines that the resource (e.g., time domain resource or frequency domain resource) of the used cell # a is to be released.

Here, the phrase "resource of the used cell # a is to be released" may mean that an interval # a (i.e., a first time interval) between a time when the network apparatus # a determines that the terminal apparatus # a releases the resource of the used cell # a and a current time is less than or equal to a preset threshold # D, where the threshold # D may be a threshold specified by a communication system or a communication protocol, or the threshold # D may be set in the network apparatus # a by an operator or a system administrator.

By way of example and not limitation, the network device # a may determine, based on the progress of the service access of the terminal device # a (e.g., the size of the downlink data buffered in the network device # a that has not been transmitted to the terminal device # a, or the size of the uplink data indicated by the terminal device # a to the network device # a that has not been transmitted), the time at which the terminal device # a releases the occupied resources of the cell # a.

Alternatively, the terminal apparatus # a may be a terminal apparatus which the network apparatus determines that no service access has occurred for a long time.

Here, "no traffic access has occurred for a long time" may mean that the network device # a determines that an interval # B (i.e., a second time interval) between a time at which the terminal device # a has most recently occurred before the current time (data or information is transmitted before the network device # a) and the current time is greater than or equal to a preset threshold # E, where the threshold # E may be a threshold specified by a communication system or a communication protocol, or the threshold # E may be set in the network device # a by an operator or a system administrator.

It should be understood that the above listed conditions that the terminal apparatus # a needs to satisfy are only exemplary, the present invention is not limited thereto, and the terminal apparatus # a may be any terminal apparatus that has accessed the cell # a.

Thereafter, the network device # a may transmit the information # a (i.e., an example of the first indication information) to the terminal device # a.

The information # a is used to instruct the network device # a to prohibit the terminal device # a from transmitting an access request # a for the cell # a to the network device # a within the period # a (i.e., an example of the first access request).

Wherein the period # a is after the terminal apparatus # a releases the occupied resources of the cell # a.

The access request # a is an access request for the cell # a that is transmitted for the first time after the terminal apparatus # a releases the occupied resources of the cell # a.

In the embodiment of the present invention, the network device # a may indicate the period # a to the terminal device # a in at least one of the following manners.

Mode a

The information # a may be used to indicate a duration # a, which is the duration of the period # a.

Also, the terminal apparatus # a may determine the start of the period # a as the time when the terminal apparatus # a receives the information # a, based on the specification of the communication system or protocol, or the instruction of the network apparatus # a.

Mode b

The information # a may indicate the above-described time period # a and the start point (or, the start time) of the period # a.

Thus, the terminal apparatus # a can receive the information # a at S220, and thus, the terminal apparatus # a does not transmit an access request to the network apparatus # a for the period # a if the terminal apparatus # a releases the occupied resource of the cell # a at S230.

In addition, it should be noted that, in the embodiment of the present invention, when the congestion status of the cell # a is characterized by a numerical value, or when the congestion determination condition may be: whether the value characterizing the congestion condition is greater than or equal to a preset threshold value.

The network device # a may also obtain a mapping # a, which may be used to indicate a one-to-one mapping between a plurality of values and a plurality of durations.

Thus, the network device may determine a duration corresponding to a value (e.g., the number of access processing failures for cell # a, the number of RRC connection requests received through cell # a, or the load of cell # a) characterizing the congestion status of cell # a in the mapping relationship # a as duration # a.

Alternatively, at S240, the network apparatus # a may determine the congestion status of the cell # a at the time #2 (the time #2 is after the time at which the network apparatus # a transmits the information # a), or in other words, the network apparatus # a may determine the congestion state of the cell # a within the detection period at the time # 2.

Also, this procedure may be similar to the procedure of the network device # a performing the congestion status of the cell # a determined at the time #1 in S210, and a detailed description thereof is omitted here for avoiding redundancy.

Thereafter, the network apparatus # a may determine whether the congestion condition of the cell # a determined as described above satisfies a preset non-congestion decision condition (i.e., an example of the second condition),

specifically, the network device # a may determine whether the congestion status of the cell # a in the period at time #2 satisfies the preset non-congestion determination condition.

The non-congestion determination condition may be a condition for determining whether the congestion status of the cell # a is non-congested.

By way of example and not limitation, when the congestion condition of cell # a includes congestion and no congestion, the no-congestion decision condition may be: the congestion status indicates that the cell is not congested, (i.e., an example of the second condition).

For example, if the congestion condition of the cell # a is not congested, the network apparatus # a may determine that the congestion condition of the cell # a satisfies the non-congestion decision condition.

If the congestion status of the cell # a is congestion, the network apparatus # a may determine that the congestion status of the cell # a does not satisfy the non-congestion decision condition.

Alternatively, by way of example and not limitation, when the congestion condition of cell # a is characterized by a numerical value, for example, the congestion condition of cell # a is characterized by a number of random access processing failures, a number of RRC connection requests, or a cell load, the decision condition may be: whether the value characterizing the congestion condition is less than or equal to a preset threshold (i.e., a second threshold, such as threshold # a, threshold # B, or threshold # C described above).

For example, if the number # a of access process failures for the cell # a is less than or equal to the threshold # a, the network apparatus # a may determine that the congestion condition of the cell # a satisfies the non-congestion decision condition.

If the number # a of access process failures for the cell # a is greater than the threshold # a, the network apparatus # a may determine that the congestion status of the cell # a does not satisfy the non-congestion determination condition.

For another example, if the number # B of RRC connection requests received through the cell # a is less than or equal to the threshold # B, the network device # a may determine that the congestion condition of the cell # a satisfies the non-congestion determination condition.

For another example, if the number # B of RRC connection requests received through the cell # a is greater than the threshold # B, the network device # a may determine that the congestion status of the cell # a does not satisfy the non-congestion determination condition.

For another example, if the load through the cell # a is less than or equal to the threshold # C, the network apparatus # a may determine that the congestion condition of the cell # a satisfies the non-congestion determination condition.

For another example, if the load through the cell # a is greater than the threshold # C, the network apparatus # a may determine that the congestion condition of the cell # a does not satisfy the non-congestion determination condition.

It should be noted that the threshold used when the network device # a determines whether the congestion condition of the cell satisfies the congestion determination condition may be the same as or different from the threshold used when the network device # a determines whether the congestion condition of the cell satisfies the non-congestion determination condition, and the present invention is not particularly limited, and for example, the threshold used when the network device # a determines whether the congestion condition of the cell satisfies the congestion determination condition may be larger than the threshold used when the network device # a determines whether the congestion condition of the cell satisfies the non-congestion determination condition

Thus, when the network device # a determines at S240 that the congestion status of the cell # a satisfies the non-congestion determination condition, the network device # a may transmit information # B (i.e., an example of the second indication information) to the terminal device # a at S250.

The information # B indicates that the network apparatus # a allows the terminal apparatus # a to transmit the access request # a for the cell # a to the network apparatus # a within the period # a (i.e., an example of the first access request).

Thus, the terminal apparatus # a can receive the information # a at S250, and thus, if the terminal apparatus # a releases the occupied resource of the cell # a at S260, the terminal apparatus # a can transmit an access request to the network apparatus # a when data or information needs to be transmitted through the cell # a during the period # a.

Fig. 3 is a schematic diagram of an apparatus 10 for communication according to the foregoing method, as shown in fig. 3, the apparatus 10 may be a terminal device (e.g., the terminal device # a), or may be a chip or a circuit, such as a chip or a circuit that can be disposed on the terminal device. The terminal device may correspond to the terminal device in the method.

The apparatus 10 may include a processor 11 (i.e., an example of a processing unit) and a memory 12. The memory 12 is configured to store instructions, and the processor 11 is configured to execute the instructions stored by the memory 12 to enable the apparatus 20 to implement the steps performed by the terminal device (e.g., terminal device # a) in the corresponding method of fig. 2.

Further, the apparatus 10 may further include an input port 13 (i.e., one example of a communication unit) and an output port 14 (i.e., another example of a communication unit). Further, the processor 11, the memory 12, the input port 13 and the output port 14 may communicate with each other via internal connection paths, passing control and/or data signals. The memory 12 is used for storing a computer program, and the processor 11 may be used for calling and running the computer program from the memory 12 to control the input port 13 to receive a signal and the output port 14 to send a signal, so as to complete the steps of the terminal device in the above method. The memory 12 may be integrated in the processor 11 or may be provided separately from the processor 11.

Alternatively, if the device 10 is a terminal, the input port 13 is a receiver and the output port 14 is a transmitter. Wherein the receiver and the transmitter may be the same or different physical entities. When the same physical entity, may be collectively referred to as a transceiver.

Alternatively, if the device 10 is a chip or a circuit, the input port 13 is an input interface, and the output port 14 is an output interface.

As an implementation manner, the functions of the input port 13 and the output port 14 may be implemented by a transceiver circuit or a dedicated chip for transceiving. The processor 11 may be considered to be implemented by a dedicated processing chip, processing circuitry, a processor, or a general purpose chip.

As another implementation manner, a manner of using a general-purpose computer to implement the terminal device provided in the embodiment of the present application may be considered. Program codes that will implement the functions of the processor 11, the input port 13 and the output port 14 are stored in the memory 12, and a general-purpose processor implements the functions of the processor 11, the input port 13 and the output port 14 by executing the codes in the memory 12.

In this embodiment of the present invention, the ingress 13 may be configured to receive first indication information from a network device, where the first indication information is used to instruct the network device to prohibit the communication apparatus from sending a first access request to the network device within a first time period, where the first access request is an access request for a first cell initiated by the communication apparatus for the first time after releasing resources of the first cell used, where the first indication information is sent by the network device when it is determined that a congestion status of the first cell meets a preset first condition;

the processor 11 is configured to prohibit the communication unit from sending the first access request to the network device within the first time period according to the first indication information.

Optionally, the first indication information includes information of a first duration, an

The processor 11 is further configured to determine a time period with the time when the first indication information is received as a starting point and the time length as the first time period.

Optionally, the ingress port 13 is further configured to receive second indication information from the network device, where the second indication information is used to indicate that the network device allows the communication apparatus to send the first access request to the network device within a first time period, where the first indication information is sent by the network device when it is determined that the congestion condition of the first cell meets a preset second condition, and the second condition is that the first number of times is smaller than a preset first threshold.

The processor 11 is configured to control the communication unit to send the first access request to the network device within a first time period according to the second indication information.

The functions and actions of the modules or units in the communication apparatus 10 listed above are only exemplary descriptions, and the modules or units in the communication apparatus 10 may be used to execute the actions or processing procedures executed by the terminal device in the method 200 described above, and here, detailed descriptions thereof are omitted to avoid redundant description.

For the concepts, explanations, details and other steps related to the technical solutions provided in the embodiments of the present application related to the apparatus 10, reference is made to the descriptions of the foregoing methods or other embodiments, which are not repeated herein.

Fig. 4 is a schematic structural diagram of a terminal device 20 provided in the present application. The terminal device 20 is applicable to the system shown in fig. 1. For ease of illustration, fig. 4 shows only the main components of the terminal device. As shown in fig. 4, the terminal device 20 includes a processor, a memory, a control circuit, an antenna, and an input-output means.

The processor is mainly configured to process a communication protocol and communication data, control the entire terminal device, execute a software program, and process data of the software program, for example, to support the terminal device to perform the actions described in the above embodiment of the method for indicating a transmission precoding matrix. The memory is mainly used for storing software programs and data, for example, the codebook described in the above embodiments. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together, which may also be called a transceiver, are mainly used for transceiving 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.

When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, 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.

Those skilled in the art will appreciate that fig. 4 shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this application.

As an alternative implementation manner, the processor may include a baseband processor and a central processing unit, where the baseband processor is mainly used to process a communication protocol and communication data, and the central processing unit is mainly used to control the whole terminal device, execute a software program, and process data of the software program. The processor in fig. 4 integrates the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network formats, the terminal device may include a plurality of central processors to enhance its processing capability, and various components of the terminal device may be connected by various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

For example, in the embodiment of the present application, the antenna and the control circuit having the transceiving function may be regarded as the transceiving unit 201 of the terminal device 20, and the processor having the processing function may be regarded as the processing unit 202 of the terminal device 20. As shown in fig. 4, the terminal device 20 includes a transceiving unit 201 and a processing unit 202. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. Optionally, a device for implementing the receiving function in the transceiver 201 may be regarded as a receiving unit, and a device for implementing the transmitting function in the transceiver 201 may be regarded as a transmitting unit, that is, the transceiver 201 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitting circuit, etc.

According to the foregoing method, fig. 5 is a second schematic diagram of the apparatus 30 for communication provided in the embodiment of the present application, and as shown in fig. 5, the apparatus 30 may be a network device (e.g., the network device # a), or may be a chip or a circuit, such as a chip or a circuit that can be disposed in the network device. Wherein the network device corresponds to the network device in the above method (e.g., the above network device # a).

The apparatus 30 may comprise a processor 31 (i.e. an example of a processing unit) and a memory 32. The memory 32 is used for storing instructions, and the processor 31 is used for executing the instructions stored by the memory 32 to enable the apparatus 30 to implement the steps performed by the network device (e.g., network device # a) in the corresponding method in fig. 2.

Further, the apparatus 30 may further include an input port 33 (i.e., one example of a communication unit) and an output port 33 (i.e., another example of a processing unit). Still further, the processor 31, memory 32, input port 33 and output port 34 may communicate with each other via internal connection paths, passing control and/or data signals. The memory 32 is used for storing a computer program, and the processor 31 may be used for calling and running the computer program from the memory 32 to control the input port 33 to receive signals and the output port 34 to send signals, so as to complete the steps of the terminal device in the method 200. The memory 32 may be integrated in the processor 31 or may be provided separately from the processor 31.

The control input port 33 receives signals, and the control output port 34 sends signals, so as to complete the steps of the network equipment in the method. The memory 32 may be integrated in the processor 31 or may be provided separately from the processor 31.

Alternatively, if the device 30 is a network device, the input port 33 is a receiver and the output port 34 is a transmitter. Wherein the receiver and the transmitter may be the same or different physical entities. When the same physical entity, may be collectively referred to as a transceiver.

Alternatively, if the device 30 is a chip or a circuit, the input port 33 is an input interface, and the output port 34 is an output interface.

Optionally, if the apparatus 30 is a chip or a circuit, the apparatus 30 may not include the memory 32, and the processor 31 may read instructions (programs or codes) in a memory outside the chip to implement the functions of the network device in the corresponding method as described in fig. 2.

As an implementation manner, the functions of the input port 33 and the output port 34 may be realized by a transceiver circuit or a dedicated chip for transceiving. The processor 31 may be considered to be implemented by a dedicated processing chip, processing circuitry, a processor, or a general purpose chip.

As another implementation manner, a manner of using a general-purpose computer to implement the network device provided in the embodiment of the present application may be considered. Program codes that implement the functions of the processor 31, the input port 33, and the output port 34 are stored in the memory, and the general-purpose processor implements the functions of the processor 31, the input port 33, and the output port 34 by executing the codes in the memory.

In this embodiment of the present invention, the processor 31 may be configured to determine a congestion status of a first cell accessed by the terminal device;

the output port 33 may be configured to send, to the terminal device, first indication information when the congestion status of the first cell meets a preset first condition, where the first indication information is used to instruct the communication apparatus to prohibit the terminal device from sending a first access request to the communication apparatus within a first time period, and the first access request is an access request, which is initiated by the terminal device for the first time after releasing the used resource of the first cell, for the first cell.

The first time period is a time period with the time when the terminal device receives the first indication information as a starting point and the time length as the first time length.

Alternatively, the processor 31 may be specifically configured to periodically detect a first number of times, which is the number of times of access processing failures for the first cell, or the number of times of radio resource control, RRC, connection requests received by the communication apparatus in the first cell, and determine the congestion status of the first cell according to the determined first number of times

The first condition is that the first time is greater than or equal to a preset first threshold.

Optionally, the processor 31 may be further configured to determine a one-to-one mapping relationship between a plurality of values and a plurality of durations, and determine, according to the mapping relationship, a duration corresponding to the value of the first number of times in the plurality of durations as the duration of the first time period.

Optionally, the output port 33 is further configured to send second indication information to the terminal device when the congestion status of the first cell meets a preset second condition, where the second indication information is used to indicate that the communication apparatus allows the terminal device to send the first access request to the communication apparatus within a first time period, and the second condition is that the first count is smaller than a preset first threshold.

Optionally, the processor 31 is further configured to determine a first time interval, where the first time interval is a time interval between a time instant at which the terminal device releases the used resources of the first cell and a current time instant, or a time interval between a time instant at which the terminal device has last service access before the current time instant and the current time instant, and the first time interval is estimated by the communication apparatus;

the output port 33 is specifically configured to send first indication information to the terminal device when the first time interval is less than or equal to a preset time threshold and the congestion status of the first cell meets a preset first condition.

The functions and actions of the modules or units in the communication apparatus 30 listed above are only exemplary descriptions, and the modules or units in the communication apparatus 30 may be used to execute the actions or processing procedures executed by the network device in the method 200, and here, detailed descriptions thereof are omitted to avoid redundant description.

For the concepts, explanations, details and other steps related to the technical solutions provided in the embodiments of the present application related to the apparatus 30, reference is made to the descriptions of the foregoing methods or other embodiments, which are not repeated herein.

Fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application, which may be used to implement the functions of the network device in the foregoing method. Such as a schematic diagram of the structure of the base station. As shown in fig. 6, the base station can be applied to the system shown in fig. 1. The base station 40 includes one or more radio frequency units, such as a Remote Radio Unit (RRU) 401 and one or more baseband units (BBUs) (also referred to as digital units, DUs) 402. The RRU 401 may be referred to as a transceiver unit, transceiver circuitry, or transceiver, etc., which may include at least one antenna 4011 and a radio frequency unit 4012. The RRU 401 is mainly used for transceiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending signaling messages described in the above embodiments to a terminal device. The BBU 402 is mainly used for performing baseband processing, controlling a base station, and the like. The RRU 401 and the BBU 402 may be physically disposed together or may be physically disposed separately, that is, distributed base stations.

The BBU 402 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like. For example, the BBU (processing unit) 402 can be used to control the base station 40 to execute the operation flow related to the network device in the above-described method embodiment.

In an example, the BBU 402 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 system or a 5G system) together, or may support radio access networks of different access systems respectively. The BBU 402 also includes a memory 4021 and a processor 4022. The memory 4021 is used to store necessary instructions and data. For example, the memory 4021 stores the codebook and the like in the above-described embodiments. The processor 4022 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation flow related to the network device in the above method embodiment. The memory 4021 and the processor 4022 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.

In one possible implementation, with the development of System-on-chip (SoC) technology, all or part of the functions of the part 402 and the part 401 may be implemented by SoC technology, for example, by a base station function chip, which integrates a processor, a memory, an antenna interface, and other devices, and a program of the related functions of the base station is stored in the memory, and the processor executes the program to implement the related functions of the base station. Optionally, the base station function chip can also read a memory outside the chip to implement the relevant functions of the base station.

It should be understood that the structure of the base station illustrated in fig. 9 is only one possible form, and should not limit the embodiments of the present application in any way. This application does not exclude the possibility of other forms of base station structure that may appear in the future.

According to the method provided by the embodiment of the present application, an embodiment of the present application further provides a communication system, which includes the foregoing network device and one or more terminal devices.

It should be understood that in the embodiments of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also 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 Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. 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 computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (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, data center, etc. that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

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. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that, in the various embodiments of the present application, 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 to the implementation process of the embodiments of the present application.

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 U 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

A method of communication, comprising:

the network equipment determines the congestion condition of a first cell accessed by the terminal equipment;

and the network equipment sends first indication information to the terminal equipment when the congestion condition of the first cell meets a preset first condition, wherein the first indication information is used for indicating that the terminal equipment is forbidden to send a first access request aiming at the first cell to the network equipment in a first time period.
The communication method according to claim 1, wherein the first access request is specifically an access request for the first cell initiated by the terminal device for the first time after releasing the used resources of the first cell.
The communication method according to claim 1 or 2, wherein the first indication information includes information of a first duration, and

the first time period is a time period with the time when the terminal device receives the first indication information as a starting point and the time length as the first time length.
The communication method according to any one of claims 1 to 3, wherein the network device determining the congestion condition of the first cell accessed by the terminal device comprises:

the network device periodically detects a first number of times, where the first number of times is the number of times of access processing failure for a first cell, or the first number of times is the number of times of Radio Resource Control (RRC) connection requests received by the network device in the first cell;

the network equipment determines the congestion condition of the first cell according to the determined first number; and

the first condition is that the first time is greater than or equal to a preset first threshold.
The communication method according to claim 4, wherein before the network device sends the first indication information to the terminal device when the congestion status of the first cell meets a preset first condition, the communication method further comprises:

the network equipment determines a one-to-one mapping relation between a plurality of numerical values and a plurality of durations;

and the network equipment determines the duration corresponding to the numerical value of the first time in the plurality of durations as the duration of the first time interval according to the mapping relation.
The communication method according to claim 4 or 5, characterized in that the communication method further comprises:

and the network equipment sends second indication information to the terminal equipment when the congestion condition of the first cell meets a preset second condition, wherein the second indication information is used for indicating that the network equipment allows the terminal equipment to send the first access request to the network equipment in a first time period, and the second condition is that the first time number is smaller than a preset first threshold value.
The communication method according to any one of claims 1 to 6, wherein the sending, by the network device, the first indication information to the terminal device when the congestion status of the first cell meets a preset first condition includes:

the network equipment determines a first time interval, and sends first indication information to the terminal equipment when the first time interval is smaller than or equal to a preset first time threshold and the congestion condition of the first cell meets a preset first condition, wherein the first time interval is a time interval between the time when the terminal equipment releases the used resources of the first cell and the current time, which is estimated by the network equipment; or

The network device determines a second time interval, and sends first indication information to the terminal device when the second time interval is greater than or equal to a preset second time threshold and the congestion condition of the first cell meets a preset first condition, wherein the second time interval is a time interval between the time of the last service access of the terminal device before the current time and the current time.
A method of communication, comprising:

the method comprises the steps that a terminal device receives first indication information from a network device, wherein the first indication information is used for indicating that the terminal device is forbidden to send a first access request aiming at a first cell to the network device within a first time period, the first cell is a cell accessed by the terminal device, and the first indication information is sent by the network device when the congestion condition of the first cell is determined to meet a preset first condition;

and the terminal equipment prohibits sending the first access request to the network equipment within a first time interval according to the first indication information.
The communication method according to claim 8, wherein the first access request is specifically an access request for the first cell initiated by the terminal device for the first time after releasing the used resources of the first cell.
The communication method according to claim 8 or 9, wherein the first indication information includes information of a first duration, and

the communication method further comprises:

and the terminal equipment determines a time period with the time of receiving the first indication information as a starting point and the time length as the first time period.
The communication method according to any one of claims 8 to 10, wherein the first condition is that the first number is greater than or equal to a preset first threshold, and the first number is the number of access processing failures for the first cell, or the first number is the number of radio resource control, RRC, connection requests received by the network device in the first cell.
The communication method of claim 11, wherein the method further comprises:

the terminal device receives second indication information from the network device, where the second indication information is used to indicate that the network device allows the terminal device to send the first access request to the network device within a first time period, where the first indication information is sent by the network device when it is determined that a congestion condition of the first cell meets a preset second condition, and the second condition is that the first number of times is smaller than a preset first threshold;

and the terminal equipment sends the first access request to the network equipment in the first time period according to the second indication information.
A communications apparatus, comprising:

the processing unit is used for determining the congestion condition of a first cell accessed by the terminal equipment;

a communication unit, configured to send first indication information to the terminal device when a congestion status of the first cell meets a preset first condition, where the first indication information is used to indicate that the terminal device is prohibited from sending a first access request for the first cell to the communication apparatus within a first time period.
The communications apparatus as claimed in claim 13, wherein the first access request is specifically an access request for the first cell initiated by the terminal device for the first time after releasing the used resources of the first cell.
A communication apparatus according to claim 13 or 14, wherein the first indication information comprises information of a first duration, and

the first time period is a time period with the time when the terminal device receives the first indication information as a starting point and the time length as the first time length.
The communications device according to any of claims 13 to 15, wherein the processing unit is specifically configured to periodically detect a first number of times, the first number of times being the number of times an access process fails for the first cell or the number of times a radio resource control, RRC, connection request is received by the communications device within the first cell, and to determine the congestion status of the first cell according to the determined first number of times, and

the first condition is that the first time is greater than or equal to a preset first threshold.
The communications apparatus according to claim 16, wherein the processing unit is further configured to determine a one-to-one mapping relationship between a plurality of values and a plurality of durations, and determine a duration corresponding to the value of the first time among the plurality of durations as the duration of the first time period according to the mapping relationship.
The apparatus according to claim 16 or 17, wherein the communication unit is further configured to send second indication information to the terminal device when the congestion status of the first cell meets a preset second condition, where the second indication information is used to indicate that the communication apparatus allows the terminal device to send the first access request to the communication apparatus within a first time period, and the second condition is that the first number of times is smaller than a preset first threshold.
The apparatus according to any one of claims 13 to 18, wherein the processing unit is specifically configured to determine a first time interval, and control the communication unit to send the first indication information to the terminal device when the first time interval is smaller than or equal to a preset first time threshold and a congestion condition of the first cell meets a preset first condition, where the first time interval is a time interval between a time instant at which the terminal device estimates that the terminal device releases the used resources of the first cell and a current time instant; or

The processing unit is specifically configured to determine a second time interval, and control the communication unit to send first indication information to the terminal device when the second time interval is greater than or equal to a preset second time threshold and a congestion condition of the first cell meets a preset first condition, where the second time interval is a time interval between a time of a latest service access by the terminal device before a current time and the current time.
A communications apparatus, comprising:

a communication unit, configured to receive first indication information from a network device, where the first indication information is used to indicate that the communication apparatus is prohibited from sending a first access request for a first cell to the network device within a first time period, where the first cell is a cell to which the communication apparatus has access, and the first indication information is sent by the network device when it is determined that a congestion status of the first cell meets a preset first condition;

and the processing unit is used for prohibiting the communication unit from sending a first access request to the network equipment in a first time period according to the first indication information.
The communications apparatus of claim 20, wherein the first access request is an access request for a first cell initiated by the communications apparatus for a first time after releasing resources of the first cell in use, wherein,
a communication apparatus according to claim 20 or 21, wherein the first indication information comprises information of a first duration, and

the processing unit is further configured to determine, as the first time period, a time period with a time when the first indication information is received as a starting point and a time length as the first time length.
The communications apparatus according to any one of claims 20 to 22, wherein the first condition is that the first number is greater than or equal to a preset first threshold, and the first number is a number of access processing failures for the first cell, or a number of radio resource control, RRC, connection requests received by the network device in the first cell.
The communication device of claim 23,

the communication unit is further configured to receive second indication information from the network device, where the second indication information is used to indicate that the network device allows the communication apparatus to send the first access request to the network device within a first time period, where the first indication information is sent by the network device when it is determined that the congestion status of the first cell meets a preset second condition, and the second condition is that the first number of times is smaller than a preset first threshold.

The processing unit is further configured to control the communication unit to send the first access request to the network device within a first time period according to the second indication information.
A communication device, comprising:

a memory for storing a computer program;

a processor for executing a computer program stored in the memory to cause the apparatus to perform the communication method of any one of claims 1 to 12.
A computer-readable storage medium comprising a computer program which, when run on a computer, causes the computer to perform the communication method according to any one of claims 1 to 12.