WO2017084336A1

WO2017084336A1 - Method and apparatus for transmitting data

Info

Publication number: WO2017084336A1
Application number: PCT/CN2016/086553
Authority: WO
Inventors: 李广俊
Original assignee: 华为技术有限公司
Priority date: 2015-11-20
Filing date: 2016-06-21
Publication date: 2017-05-26
Also published as: CN105517174B; CN105517174A

Abstract

Disclosed is a method for transmitting data, comprising: a base station receiving an uplink data transmission request sent by a first terminal; the base station configuring a random access channel (RACH) resource for transmitting data; the base station scheduling the RACH resource to the first terminal so as to transmit the data; and the base station sending an uplink grant message to the first terminal, wherein the uplink grant message comprises scheduling information about the base station scheduling the RACH resource to the first terminal so as to transmit the data, and the uplink grant message is used for instructing the first terminal to perform data transmission using the RACH resource according to the scheduling information. In this way, a first terminal can perform uplink data transmission using an RACH resource, thereby improving the utilization rate of the RACH resource and thus improving the throughput of network traffic.

Description

Method and device for transmitting data

The present application claims priority to Chinese Patent Application No. 201510812818.8, entitled "A Method and Apparatus for Transmitting Data" on November 20, 2015, the entire contents of which are incorporated herein by reference. in.

Technical field

The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting data.

Background technique

With the popularity of smart terminals, the rich business-driven mobile bandwidth (English full name: Mobile Broadband English abbreviation: MBB) is booming, and network traffic is exploding. According to the Mobile Research Institute's consulting report, in terms of hot spots, the total traffic in 2016 will exceed 30 times in 2012. At the same time, MBB puts higher demands on data throughput. 70-80% of MBB traffic occurs indoors, and operators need to focus on improving indoor throughput.

According to the existing standard protocol, for the random access channel (English name: Random Access Channel, English abbreviation: RACH) resources, the base station periodically performs scheduling, and the spectrum resources are fixedly occupied, so that the user performs random access. The protocol stipulates that the maximum period of the RACH is 20 ms, that is, every 20 ms of resources, regardless of whether the user will initiate an access process, the resource will be fixed once. In the general scenario, to ensure the effect of access, the RACH period is set to 10ms.

In the MBB era, with the increasing importance of indoor services, the increasing proportion of traffic, and the more efficient use of wireless resources to increase traffic demands, the RACH process has been optimized and improved in many scenarios. Indoor coverage features: large uplink and downlink traffic, less mobility, minimal access to RACH signaling, and small coverage.

The original intention of the protocol is to protect the random access process, so that the users occupy the network with higher priority resources and synchronize the network. However, when the timeliness of the users entering the network is guaranteed, many resources are also wasted: taking a group of data as an example, the RACH period is set to 10ms, and the average RACH occupies 6 resource block RB resources, then there are 600 in one second. RBs are occupied. In 10s time, there are 6000 RBs, each RB is 712bps, and the traffic in 6000s is 6000*712=4Mbps. The accumulated bearer throughput of each station is up to 34560Mbps, resulting in a large Waste of resources.

Summary of the invention

The present application provides a method and apparatus for transmitting data, which can improve the utilization of RACH resources.

In a first aspect, a method of transmitting data is provided, comprising:

Receiving, by the base station, an uplink data transmission request sent by the first terminal;

The base station configures a random access channel RACH resource for transmitting data;

The base station schedules the RACH resource to transmit data to the first terminal;

The base station sends an uplink grant message to the first terminal, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to indicate the The first terminal uses the RACH resource to perform data transmission according to the scheduling information.

Receiving, by the base station, an uplink data transmission request sent by the first terminal, where the base station configures a random access channel RACH resource for transmitting data, and the base station schedules the RACH resource to transmit data to the first terminal, where the base station sends The first terminal sends an uplink grant message, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to indicate that the first terminal is configured according to the The scheduling information uses the RACH resource for data transmission. In this way, the first terminal can perform uplink data transmission through the RACH resource, thereby improving the utilization of the RACH resource, thereby improving the throughput of the network traffic.

In a possible implementation manner, after the sending, by the base station, the uplink authorization message to the first terminal, the method further includes:

The base station determines, according to the period of transmitting the RACH request signaling, that the RACH resource can be used to transmit the RACH request signaling, and performs RACH request signaling demodulation on the RACH resource, if the RACH request signaling is successfully demodulated. And establishing a connection with the second terminal that initiates the RACH request signaling; or

The base station performs demodulation of RACH request signaling on the RACH resource, and if the demodulation RACH request signaling succeeds, establishing a connection with the second terminal that initiates the RACH request signaling; if not, according to the The scheduling information demodulates the cyclic redundancy check code CRC of the data on the RACH resource.

The base station transmits data or RACH request signaling according to the indication of the MAC scheduling at the receiving terminal. The RACH request signaling is demodulated first, and if the RACH request signaling is not successfully demodulated, the RACH resource is demodulated. The service priority of the accessing the base station is higher than the service priority of the data sent by the terminal to the base station, and the implementation time can reduce the waiting time of the user access and improve the user experience.

In another possible implementation manner, the method further includes:

The RACH resource is configured to transmit the RACH request signaling period, and the RACH resource is used to transmit the RACH request signaling during the period of the RACH request signaling.

Because the RACH resource specified in the existing protocol is used to transmit the RACH request signaling, the maximum period is 20 ms. In some indoor scenarios, many terminals need to be frequently accessed. Therefore, in this implementation manner, the base station is The RACH resource is configured to transmit the RACH request signaling period, so that the base station can configure the period in the actual application scenario, the period duration can be 2s, or even 10s is similar to a large duration, and the RACH resource has more moments. Used to transmit data, improving the utilization of RACH resources.

In another possible implementation manner, the method further includes:

When the base station detects that the interference value of the RACH resource is greater than a preset threshold, the base station cancels the configuration of the RACH resource for transmitting data, and instructs the terminal not to use the RACH resource for data transmission. .

The priority of the RACH resource for transmitting the RACH request signaling is not only high, but the RACH resource cannot be interfered too much when it is used to transmit the RACH request signaling. As a result, the RACH request signaling may not be demodulated successfully. The terminal is unable to access the base station, so in the implementation manner, the base station sets an interference threshold for the RACH resource, and if the interference value of the RACH resource is greater than the threshold, the RACH resource is cancelled for transmission. The configuration of the data enables the RACH resource to be used for transmitting signaling, and ensures that the terminal can successfully access the base station when accessing the terminal, thereby improving the user experience.

In a second aspect, an apparatus for transmitting data is provided, the apparatus for transmitting data having the function of implementing the above method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible implementation manner, the apparatus for transmitting data includes a transmitter, a receiver, and a processor;

a receiver, configured to receive an uplink data transmission request sent by the first terminal;

a processor, configured to configure a random access channel RACH resource for transmitting data;

The processor is further configured to: schedule the RACH resource to transmit data to the first terminal;

a transmitter, configured to send an uplink grant message to the first terminal, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to indicate The first terminal uses the RACH resource to perform data transmission according to the scheduling information.

In another possible implementation manner, the apparatus for transmitting data includes a receiving module, a processing module, and a sending module;

a receiving module, configured to receive an uplink data transmission request sent by the first terminal;

a processing module, configured to configure a random access channel RACH resource for transmitting data;

The processing module is further configured to: schedule the RACH resource to transmit data to the first terminal;

a sending module, configured to send an uplink grant message to the first terminal, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to indicate The first terminal uses the RACH resource to perform data transmission according to the scheduling information.

DRAWINGS

1 is a schematic diagram of a method for transmitting data provided by the present application;

2 is a schematic diagram of another method for transmitting data provided by the present application;

FIG. 3 is a schematic diagram of another method for transmitting data provided by the present application; FIG.

4a is a schematic diagram of another method for transmitting data provided by the present application;

FIG. 4b is a schematic diagram of another method for transmitting data provided by the present application; FIG.

4c is a schematic diagram of another method for transmitting data provided by the present application;

FIG. 5 is a schematic structural diagram of an apparatus for transmitting data according to the present application; FIG.

FIG. 6 is a schematic structural diagram of another apparatus for transmitting data according to the present application.

detailed description

The present application provides a method and apparatus for transmitting data for improving utilization of RACH resources.

The technical solutions in the present application will be clearly and completely described below in conjunction with the drawings in the present application. It is to be understood that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present application without creative efforts are within the scope of the present application.

Referring to FIG. 1, the present application provides a method for transmitting data, including:

101. The base station receives an uplink data transmission request sent by the first terminal.

When the first terminal that has established a connection with the base station needs to send uplink data to the base station, the first terminal needs to send an uplink data transmission request to the base station first, and after receiving the uplink data transmission request, the base station receives the uplink data transmission request. And allocating the channel resource to the first terminal, where the first terminal sends the uplink data, and sends an uplink grant message to the first terminal, indicating that the first terminal can send uplink data to the base station. . The uplink data transmission request may be a buffer status report of the first terminal (English name: Buffer Status Report, English abbreviation: BSR).

102. The base station configures a random access channel RACH resource for transmitting data.

In any case, if the mobile terminal needs to establish communication with the base station, it needs to send a message to the base station through the RACH to apply for a signaling channel to the system, and the base station will determine the assigned channel type according to the channel request requirement, which is in the RACH. The message sent on is called the "channel request". In the existing standard protocol, the RACH resource has a periodicity, and the RACH resource needs to be scheduled to be used for the RACH request signaling, and the maximum period of the RACH resource being scheduled is 20 ms. In a practical application scenario, such as in a home or a company, there are not many terminals that need to access the base station frequently, that is, the RACH resources need to be used less. In order to avoid waste of RACH resources, the RACH resources are improved. Utilization, in the method for data transmission provided by the present application, configuring the RACH resource may be used to transmit data.

103. The base station schedules the RACH resource to transmit data to the first terminal.

After receiving the uplink data transmission request sent by the first terminal, the base station needs to allocate a channel resource to the first terminal, and the base station schedules the RACH because the RACH resource is configured to be used for transmitting data. The resource transmits data to the first terminal to improve utilization of the RACH resource.

The base station sends an uplink grant message to the first terminal, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to indicate The first terminal uses the RACH resource according to the scheduling information Data transmission;

After the base station allocates the RACH resource to the first terminal, the base station needs to send an uplink grant message to the first terminal, indicating that the first terminal can perform uplink data transmission. Meanwhile, the uplink grant message further includes scheduling information, where the scheduling information includes, in which frequency band on the RACH channel the terminal performs data transmission, and when the base station performs demodulation data on a frequency band on the RACH channel. The information of the interaction is used to indicate that the first terminal uses the RACH resource to perform uplink data transmission, and indicates a time and a frequency band of the first terminal transmitting data on the RACH resource.

In this application, the base station receives an uplink data transmission request sent by the first terminal, the base station configures a random access channel RACH resource for transmitting data, and the base station schedules the RACH resource to transmit data to the first terminal, The base station sends an uplink grant message to the first terminal, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to indicate the The first terminal uses the RACH resource to perform data transmission according to the scheduling information. In this way, the first terminal can perform uplink data transmission through the RACH resource, thereby improving the utilization of the RACH resource, thereby improving the throughput of the network traffic.

On the basis of the method shown in FIG. 1 , further, referring to FIG. 2 , the present application provides another method for transmitting data, including:

201. The base station receives an uplink data transmission request sent by the first terminal.

The details are as described in step 101.

202. The base station configures a random access channel RACH resource for transmitting data.

The details are as described in step 102.

203. When the base station determines that the RACH resource is not occupied, the base station schedules the RACH resource to transmit data to the first terminal.

Since a base station is connected to multiple terminals, multiple terminals can perform channel request or data transmission through the RACH resource. To avoid interference, the base station first determines the RACH resource before assigning the RACH resource to the first terminal. Whether the RACH resource is occupied, if not occupied, the RACH resource is allocated to the first terminal to transmit data; if the RACH resource is occupied, the base station may allocate other channel resources to the first A terminal transmits data.

204. The base station sends an uplink grant message to the first terminal, where the uplink grant message packet is The scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to instruct the first terminal to use the RACH resource to perform data transmission according to the scheduling information;

See step 104 for details.

205. The base station determines, according to a period of transmitting the RACH request signaling, that the RACH resource can be used to transmit RACH request signaling, and performs RACH request signaling demodulation on the RACH resource, if the RACH request message is demodulated. If successful, the connection is established with the second terminal that initiates the RACH request signaling; or the base station performs demodulation of the RACH request signaling on the RACH resource, and if the demodulation RACH request signaling is successful, And the second terminal that initiates the RACH request signaling establishes a connection; if it fails, performs demodulation of the cyclic redundancy check code CRC of the data on the RACH resource according to the scheduling information;

In a physical implementation, the base station cannot determine the content carried by the RACH resource, but in a possible implementation manner of the data transmission method of the present application, the RACH resource specifies a transmission RACH request message in the protocol. In the period of the command, the base station may determine, according to the period of transmitting the RACH request signaling, whether the RACH resource can be used to transmit the RACH request signaling at the current time, and if yes, perform demodulation of the RACH request signaling on the RACH resource, if And if the demodulation RACH request signaling is successful, establishing a connection with the second terminal that initiates the RACH request signaling; if not, performing data demodulation on the RACH resource.

In another possible implementation manner, the base station may set the base station to demodulate the RACH resource according to two demodulation manners, and the base station first performs demodulation of the RACH request signaling on the RACH resource. If the base station successfully demodulates the RACH request signaling, indicating that the second terminal requests access to the base station, the base station allocates channel resources to the second terminal, and establishes a connection with the second terminal; If the base station is unable to demodulate the RACH request signaling, the base station performs data demodulation on the RACH resource, and demodulates the CRC of the data, indicating that the RACH resource carries the first terminal. The data content sent by the base station may acquire the data sent by the first terminal.

In the embodiment of the present application, the base station first performs demodulation of the RACH request signaling on the RACH resource, and if the RACH request signaling cannot be successfully demodulated, the data is demodulated on the RACH resource. In this way, the waiting time for user access is reduced, and the user experience is improved.

On the basis of the method shown in FIG. 1 , further, referring to FIG. 3 , the present application provides another method for transmitting data, including:

301. The base station receives an uplink data transmission request sent by the first terminal.

The details are as described in step 101.

302. The base station configures a period in which the RACH resource is used to transmit RACH request signaling, where the RACH resource is used to transmit RACH request signaling during a period of the RACH request signaling.

In the existing standard protocol, the RACH resource is configured to periodically transmit RACH request signaling, and the maximum period is 20 ms, which causes the RACH resources to be frequently scheduled. However, in an indoor scenario, not multiple terminals need to access the base station frequently. Therefore, in the data transmission method of the present application, the base station cancels the maximum cycle configuration of the RACH resource. In order to ensure that the RACH resource can be used when a terminal needs to access, the base station configures a period for transmitting the RACH request signaling for the RACH resource according to an actual situation, and when the RACH request signaling period is being transmitted, The base station broadcasts the RACH resource for access by the terminal. The period of the RACH request signaling is configurable and can be configured to the second or lower level. The configuration is different for different scenarios: for example, the returning scenario, the configuration period is 2S, the small bandwidth scenario, and the configuration period is 1S. The configuration period is 2S, the home scene, and the configuration period is 10S.

303. When the base station determines that the current time is a periodic time of non-transmission RACH request signaling, the base station configures the RACH resource to transmit data.

Since the priority of the transmission RACH request signaling is higher than the priority of the transmission data, in order to prevent the RACH resource from being interfered, the terminal cannot access the base station. Therefore, when configuring the RACH resource for transmitting data, the base station first determines whether the current time is The periodic time of the non-transmission RACH request signaling, if not, the RACH resource is configured to transmit data, and if so, other channel resources are configured to transmit data.

When the base station determines that the RACH resource is not occupied, the base station schedules the RACH resource to transmit data to the first terminal.

The details are as described in step 203.

305. The base station sends an uplink grant message to the first terminal, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where The uplink grant message is used to indicate that the first terminal uses the RACH resource to perform data transmission according to the scheduling information;

See step 104 for details.

306. When the base station determines, according to the period of the transmission RACH request signaling, that the current time is the transmission RACH request signaling, the base station performs RACH request signaling demodulation on the RACH resource, if the RACH request signal is demodulated. If successful, the connection is established with the second terminal that initiates the RACH request signaling; or when the base station determines that the current time is the non-transmission RACH request signaling according to the period of the transmission RACH request signaling, the base station Demodulating a cyclic redundancy check code CRC of data for the RACH resource;

Since the period in which the RACH resource is used for transmitting the RACH request signaling is configured by the base station, and the base station performs baseband demodulation, the time at which the terminal transmits data is determined, and when the base station performs data demodulation on the RACH resource within a predetermined time, Determining whether the current time is a transmission RACH request signaling, if yes, the base station performs RACH request signaling demodulation on the RACH resource, and if not, the base station performs data demodulation on the RACH resource. .

In the embodiment of the present application, the base station configures a large RACH request signaling period for the RACH resource according to the actual scenario, so that the RACH resource spends more time for transmitting data, thereby improving the utilization of the RACH resource.

Further, referring to FIG. 4a to FIG. 4c, in combination with the method shown in FIG. 1 or FIG. 2 or FIG. 3, the present application provides another method for transmitting data, including:

401. When the base station detects that the interference value of the RACH resource is greater than a preset threshold, the base station cancels the configuration of the RACH resource used for transmitting data, and indicates that the terminal does not use the RACH resource. data transmission;

The RACH resource may be used by multiple terminals at the same time, used for transmitting data, or used for RACH request signaling initiated, and the frequency bands carrying RACH request signaling and data are adjacent or identical, and the intra-segment RACH When a resource is used to transmit different types of information, it will cause overlapping of signal energy, which will inevitably cause mutual interference. Especially when multiple first terminals establish a data transmission connection with the base station, if the second terminal needs to initiate When the RACH request signaling accesses the base station, the RACH resource interference may be too large to be demodulated by the base station to demodulate the RACH request signaling, causing the second terminal to fail to access. In order to reduce the situation, in the embodiment of the present application, the base station passes the real-time or periodic check. The interference of the RACH resource is measured to obtain an interference value. If the interference value is greater than the preset threshold, the RACH resource is subjected to a large interference, and the base station cancels the RACH resource for transmitting data. And configuring, and instructing, the terminal not to use the RACH resource for data transmission. When the RACH resource is no longer used for transmitting data, the RACH request signaling carried by the RACH resource is greatly reduced, and the success rate of the second terminal accessing the base station is improved, thereby improving the user experience.

The base station reconfigures the RACH resource for transmitting data, and indicates the first, when the base station detects that the interference value of the RACH resource is less than or equal to the preset threshold. A terminal uses the RACH resource for data transmission;

After the RACH resource is unconfigured for transmitting data, the RACH resource can only wait for the periodic time to be used for the broadcast transmission of the RACH request signaling. To improve the utilization of the RACH resource, the base station detects the RACH resource in real time. If the interference value received by the RACH resource is less than or equal to a preset threshold, the base station reconfigures the RACH resource for transmitting data, and indicates the The terminal uses the RACH resource to perform data transmission, so that the RACH resource is dynamically configured to improve the utilization of the RACH resource and increase the traffic throughput.

It should be noted that, in the method for transmitting data provided by the present application, the scheduling of the RACH resource by the base station may be implemented by using a medium access control layer (English name: Media Access Control, English abbreviation: MAC).

As shown in FIG. 5, the present application provides an apparatus for scheduling a message, which is used in the foregoing method for implementing the data transmission shown in FIG. 1 to FIG.

The receiving module 501 is configured to receive an uplink data transmission request sent by the first terminal.

The details are as described in step 101.

The processing module 502 is configured to configure a random access channel RACH resource for transmitting data.

The details are as described in step 102.

The processing module 502 is further configured to: schedule the RACH resource to transmit data to the first terminal;

The details are as described in step 103.

The sending module 503 is configured to send an uplink grant message to the first terminal, where the uplink authorization is The information includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to instruct the first terminal to use the RACH resource to perform data transmission according to the scheduling information.

See step 104 for details.

Optionally, the processing module 502 is further configured to:

After the sending module 503 sends the uplink grant message to the first terminal, determining, according to the period of transmitting the RACH request signaling, that the RACH resource can be used to transmit the RACH request signaling, and then performing the RACH on the RACH resource. Demodulating the request signaling, if the demodulation RACH request signaling is successful, establishing a connection with the second terminal that initiates the RACH request signaling; or

Performing demodulation of the RACH request signaling on the RACH resource, if the demodulation RACH request signaling is successful, establishing a connection with the second terminal that initiates the RACH request signaling; if not, performing the RACH resource on the RACH resource Demodulation of the cyclic redundancy check code CRC of the data is performed.

The details are as described in step 205.

Optionally, the processing module 502 is further configured to:

And configuring, by the RACH resource, a period for transmitting the RACH request signaling, where the RACH resource is used to transmit the RACH request signaling.

The details are described with reference to step 302.

Optionally, the processing module 502 is specifically configured to:

When the current time is determined as the periodic time of the non-transmission RACH request signaling, the RACH resource is configured to transmit data.

The details are as described in step 303.

Optionally, the processing module 502 is further configured to:

After the sending module 503 sends an uplink grant message to the first terminal, when the processing module 502 determines that the current time is the transmission RACH request signaling according to the period of the transmission RACH request signaling, the RACH resource is used. Performing demodulation of RACH request signaling, and if the demodulation RACH request signaling is successful, establishing a connection with the second terminal that initiates the RACH request signaling; or

When the processing module 502 determines that the current time is the non-transmission RACH request signaling according to the period of the transmission RACH request signaling, the solution of the cyclic redundancy check code CRC of the data is performed on the RACH resource according to the scheduling information. Tune.

See step 306 for details.

Optionally, the processing module 502 is further configured to:

When the processing module 502 detects that the interference value of the RACH resource is greater than a preset threshold, canceling the configuration of the RACH resource for transmitting data, and instructing the terminal not to use the RACH resource for data transmission.

The details are as described in step 401.

Optionally, the processing module 502 is further configured to:

After the processing module 502 cancels the configuration of the RACH resource for transmitting data, when the processing module 502 detects that the interference value of the RACH resource is less than or equal to the preset threshold, Reconfiguring the RACH resource for transmitting data, and instructing the first terminal to use the RACH resource for data transmission.

See step 402 for details.

Optionally, the processing module 502 is further configured to:

And determining, when the RACH resource is not occupied, scheduling the RACH resource to transmit data to the first terminal.

The details are as described in step 203.

Based on the method for transmitting data provided by the foregoing application, the present application provides a base station 600 for implementing the functions of the base station in the method for transmitting data. As shown in FIG. 6, the base station 600 includes a processor 601, a transmitter 602, and a receiving unit. The 603, wherein the processor 601, the transmitter 602 and the receiver 603 are connected to each other by a bus 604.

The receiver 603 is configured to implement the function of the sending module 501 in the embodiment of FIG. 5.

The processor 601 is configured to implement the functions of the processing module 502 in the embodiment of FIG. 5.

The transmitter 602 is configured to implement the function of the sending module 503 in the embodiment of FIG. 5.

The processor 401 may be a general-purpose processor, including a central processing unit (CPU), a network processor (Network Processor, NP for short), or a digital signal processor (Digital Signal Processing, Abbreviation: DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices.

When the processor 601 is a CPU, the base station 600 may further include: a memory for storing a program. In particular, the program can include program code, the program code including computer operating instructions. The memory may include a random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage. The processor 601 executes program code stored in the memory to implement the above functions.

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the embodiments are modified, or equivalent to some of the technical features are replaced; and the modifications or substitutions do not deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

A method of transmitting data, characterized in that the method comprises:

Receiving, by the base station, an uplink data transmission request sent by the first terminal;

The base station configures a random access channel RACH resource for transmitting data;

The base station schedules the RACH resource to transmit data to the first terminal;

The base station sends an uplink grant message to the first terminal, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to indicate the The first terminal uses the RACH resource to perform data transmission according to the scheduling information.
The method according to claim 1, wherein after the base station sends an uplink grant message to the first terminal, the method further includes:

The base station determines, according to the period of transmitting the RACH request signaling, that the RACH resource can be used to transmit the RACH request signaling, and performs RACH request signaling demodulation on the RACH resource, if the RACH request signaling is successfully demodulated. And establishing a connection with the second terminal that initiates the RACH request signaling; or

The base station performs demodulation of RACH request signaling on the RACH resource, and if the demodulation RACH request signaling succeeds, establishing a connection with the second terminal that initiates the RACH request signaling; if not, according to the The scheduling information demodulates the cyclic redundancy check code CRC of the data on the RACH resource.
The method of claim 1 further comprising:

The RACH resource is configured to transmit the RACH request signaling period, and the RACH resource is used to transmit the RACH request signaling during the period of the RACH request signaling.
The method according to claim 3, wherein the configuring, by the base station, the random access channel RACH resource for transmitting data comprises:

When the base station determines that the current time is a periodic time of non-transmission RACH request signaling, the base station configures the RACH resource for transmitting data.
The method according to claim 3 or 4, wherein after the base station sends an uplink grant message to the first terminal, the method further includes:

Determining, by the base station, that the current time is the transmission according to the period of the transmission RACH request signaling When the RACH request signaling, the base station performs demodulation of the RACH request signaling on the RACH resource, and if the demodulation RACH request signaling succeeds, establishes a connection with the second terminal that initiates the RACH request signaling; or

When the base station determines that the current time is the non-transmission RACH request signaling according to the period of the transmission RACH request signaling, the base station performs a cyclic redundancy check code CRC of the data on the RACH resource according to the scheduling information. demodulation.
The method according to any one of claims 1 to 5, wherein the method further comprises:

When the base station detects that the interference value of the RACH resource is greater than a preset threshold, the base station cancels the configuration of the RACH resource for transmitting data, and instructs the terminal not to use the RACH resource for data transmission. .
The method according to claim 6, wherein after the base station cancels the configuration of the RACH resource for transmitting data, the method further includes:

When the base station detects that the interference value of the RACH resource is less than or equal to the preset threshold, the base station reconfigures the RACH resource for transmitting data, and indicates the first terminal. The RACH resource is used for data transmission.
The method according to any one of claims 1 to 7, wherein the base station scheduling the RACH resource to transmit data to the first terminal comprises:

When the base station determines that the RACH resource is not occupied, the base station schedules the RACH resource to transmit data to the first terminal.
A device for transmitting data, characterized in that the device comprises:

a receiving module, configured to receive an uplink data transmission request sent by the first terminal;

a processing module, configured to configure a random access channel RACH resource for transmitting data;

The processing module is further configured to: schedule the RACH resource to transmit data to the first terminal;

a sending module, configured to send an uplink grant message to the first terminal, where the uplink grant message includes scheduling information that the base station schedules the RACH resource to transmit data to the first terminal, where the uplink grant message is used to indicate The first terminal uses the RACH resource to perform data transmission according to the scheduling information.
The device according to claim 9, wherein the processing module is further configured to:

After the sending module sends the uplink grant message to the first terminal, determining, according to the period of transmitting the RACH request signaling, that the RACH resource can be used to transmit the RACH request signaling, and then performing a RACH request on the RACH resource. Demodulation of signaling, if the demodulation RACH request signaling is successful, establishing a connection with the second terminal that initiates the RACH request signaling; or

Performing demodulation of the RACH request signaling on the RACH resource, if the demodulation RACH request signaling is successful, establishing a connection with the second terminal that initiates the RACH request signaling; if not, performing the RACH resource on the RACH resource Demodulation of the cyclic redundancy check code CRC of the data is performed.
The device according to claim 9, wherein the processing module is further configured to:

And configuring, by the RACH resource, a period for transmitting the RACH request signaling, where the RACH resource is used to transmit the RACH request signaling.
The device according to claim 11, wherein the processing module is specifically configured to:

When the current time is determined as the periodic time of the non-transmission RACH request signaling, the RACH resource is configured to transmit data.
The device according to claim 11 or 12, wherein the processing module is further configured to:

After the sending module sends an uplink grant message to the first terminal, when the processing module determines that the current time is the transmission RACH request signaling according to the period of the transmission RACH request signaling, performing RACH on the RACH resource. Demodulating the request signaling, if the demodulation RACH request signaling is successful, establishing a connection with the second terminal that initiates the RACH request signaling; or

When the processing module determines that the current time is the non-transmission RACH request signaling according to the period of the transmission RACH request signaling, performing demodulation of the cyclic redundancy check code CRC of the RACH resource according to the scheduling information. .
The device according to any one of claims 9 to 13, wherein the processing module is further configured to:

When the processing module detects that the interference value of the RACH resource is greater than a preset threshold, canceling the configuration of the RACH resource for transmitting data, and instructing the terminal not to use the RACH resource for data transmission.
The device according to claim 14, wherein the processing module is further configured to:

After the processing module cancels the configuration of the RACH resource for transmitting data, when the When the processing module detects that the interference value of the RACH resource is less than or equal to the preset threshold, the RACH resource is reconfigured to transmit data, and the first terminal is used to use the RACH resource. Data transfer.
The device according to any one of claims 9 to 15, wherein the processing module is further configured to:

And determining, when the RACH resource is not occupied, scheduling the RACH resource to transmit data to the first terminal.