CN114126058A

CN114126058A - Wireless communication method, terminal and access network equipment

Info

Publication number: CN114126058A
Application number: CN202010899698.0A
Authority: CN
Inventors: 何朗; 陈冬明; 张腾翼; 孙云玉
Original assignee: Shanghai Huawei Technologies Co Ltd
Current assignee: Shanghai Huawei Technologies Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2022-03-01

Abstract

A method of wireless communication comprising: receiving an uplink resource indication sent by access network equipment, wherein the access network equipment stores scheduling information; and transmitting the service data on the uplink resource corresponding to the uplink resource indication. When the terminal needs to send uplink data, the terminal can send service data on the uplink resource indicated by the uplink resource. Therefore, the steps of accessing the terminal to the network can be reduced, thereby saving signaling overhead and reducing data transmission delay. The present application also provides a terminal capable of performing the above wireless communication method.

Description

Wireless communication method, terminal and access network equipment

Technical Field

The present application relates to the field of wireless communication, and in particular, to a wireless communication method, a terminal, and an access network device.

Background

With the development of wireless communication technology, the wireless communication application of the internet of things is more and more. The increasing demand for communication services and communication users have placed increasing strain on wireless communication resources. In order to improve wireless communication efficiency, it is necessary to reduce unnecessary signaling resource overhead.

In order to increase the network access speed of a terminal, a terminal access flow method is generally as follows:

step A1: and the terminal sends a lead code to the base station to carry out uplink synchronization and request uplink resources.

Step A2: the base station allocates a resource for transmitting a Radio Resource Control (RRC) connection request to the terminal according to the preamble, and transmits a random access response to the terminal.

Step A3: and the terminal sends an RRC connection request to the base station according to the random access response.

Step A4: and the base station allocates the special resources for the terminal to the terminal according to the RRC connection request and sends an RRC connection establishment message to the terminal.

Step A5: the terminal transmits an RRC connection setup complete message including a non-access stratum (NAS) message to the base station, where the NAS message may include an attach (attach) request and service data.

It can be seen from the process that at least 5 steps are required to transmit service data, the overhead of access signaling is large, and the data transmission efficiency is not high.

Disclosure of Invention

In view of this, the present application provides a wireless communication method, a terminal and an access network device, which can reduce overhead of access signaling and speed up a speed of accessing a network by the terminal.

A first aspect provides a wireless communication method, in which an uplink resource indication sent by an access network device is received; and transmitting the service data on the uplink resource indicated by the uplink resource. The access network equipment stores scheduling information. After the terminal and the access network device disconnect the RRC connection, the service data, such as a small data packet, may be transmitted according to the scheduling information without recovering the RRC connection. The scheduling information may include one or more of Timing Advance (TA), Physical Downlink Control Channel (PDCCH) resource information, Modulation and Coding Scheme (MCS), and scheduling request physical random access Channel (SR-PRACH) resource information. The SR-PRACH refers to a PRACH for a Scheduling Request (SR).

When the terminal is taken as an execution subject, the terminal receives the uplink resource indication, and the uplink resource available for the terminal can be determined according to the uplink resource indication. When the terminal needs to send the uplink data, the terminal and the access network device both store the scheduling information, so that the service data can be directly transmitted on the uplink resource without executing the steps of sending a lead code and the like before sending the service data. Therefore, the steps of accessing the terminal to the network can be reduced, thereby saving signaling overhead and reducing data transmission delay.

In a possible implementation manner, the receiving an uplink resource indication sent by an access network device includes: under the condition that a terminal is in an inactive state and scheduling information includes a time advance, receiving scrambling information sent by an access network device through a PDCCH (physical uplink shared channel), and descrambling the scrambling information into downlink control information according to a preset first Radio Network Temporary Identifier (RNTI), wherein the downlink control information includes PUSCH (physical uplink shared channel, PUSCH) resource information of an idle Physical Uplink Shared Channel (PUSCH); and scrambling the service data by adopting a preset first RNTI, and sending the scrambled service data on a PUSCH corresponding to the PUSCH resource information according to the time lead. Optionally, the first RNTI is a newly added common control information and is located in a common search space of the PDCCH. The value of the first RNTI may be expressed in hexadecimal FFFD.

In this way, after the access network device broadcasts Downlink Control Information (DCI) through the PDCCH, the terminal can know that the access network device has an idle PUSCH according to the DCI. After receiving the DCI, the inactive terminal may determine a PUSCH corresponding to the PUSCH resource information according to the time advance, and then send service data on the PUSCH, that is, it indicates that the inactive terminal may perform uplink synchronization according to the time advance.

In another possible implementation manner, the receiving the uplink resource indication sent by the access network device includes: under the condition that the terminal is in a connected state and the scheduling information comprises a time advance, receiving scrambling information sent by the access network equipment through a PDCCH (physical downlink control channel), and descrambling the scrambling information into downlink control information according to a preset first RNTI (radio network temporary identifier), wherein the downlink control information comprises PUSCH (physical uplink shared channel) resource information of an idle PUSCH (physical uplink shared channel); the sending of the service data on the uplink resource corresponding to the uplink resource indication includes: scrambling the service data by adopting a first RNTI; and sending the scrambled service data on the PUSCH corresponding to the PUSCH resource information according to the time advance.

By this implementation, after the access network device broadcasts DCI through the PDCCH, the terminal can know that the access network device has an idle PUSCH according to the DCI. After receiving the DCI, the terminal in the connected state may determine a PUSCH corresponding to the PUSCH resource information according to the time advance, and then transmit service data on the PUSCH. The connected terminal can send the uplink data according to the DCI without sending a scheduling request, thereby reducing the signaling overhead of sending the uplink data and improving the data transmission efficiency.

In another possible implementation manner, the receiving the uplink resource indication sent by the access network device includes: receiving a system information block type one (SIB 1) message broadcasted by an access network device, where the SIB1 message includes Physical Random Access Channel (PRACH) resource information, GAP (GAP) information, and PUSCH resource information, when the terminal is in an inactive state and the scheduling information does not include a time advance; the sending of the service data on the uplink resource corresponding to the uplink resource indication includes: sending a lead code on the PRACH corresponding to the PRACH resource information; and sending the service data on the PUSCH corresponding to the PUSCH resource information. The time interval between the PRACH and the PUSCH corresponds to the gap information.

In this way, when the terminal is in inactive state and the scheduling information does not include the timing advance, the terminal cannot perform uplink synchronization with the access network device, but the terminal may transmit the preamble on the PRACH and transmit the traffic data on the PUSCH corresponding to the PUSCH resource information according to the SIB1 message. It should be noted that, after receiving the SIB1 message, the terminal may further send an RRC recovery request to the access network device on the PUSCH corresponding to the PUSCH resource information, and the access network device may recover the RRC connection according to the RRC recovery request.

On the basis of the above implementation, in another possible implementation, before receiving an uplink resource indication sent by an access network device, receiving an RRC release message sent by the access network device, where the RRC release message includes an identifier for storing scheduling information; and saving the scheduling information according to the identifier of the saved scheduling information. After the access network device disconnects the RRC connection with the terminal, the terminal and the access network device may store the scheduling information so as to recover the RRC connection or upload service data.

A second aspect provides a wireless communication method in which an uplink resource indication is transmitted to a terminal, the terminal storing scheduling information; and receiving the service data sent by the terminal on the uplink resource indicated by the uplink resource. When the access network equipment is taken as an execution main body, the terminal and the access network equipment both store scheduling information. After the RRC connection is disconnected between the terminal and the access network equipment, the service data can be transmitted according to the scheduling information without recovering the RRC connection. The scheduling information may include TA, PDCCH resource information, MCS and SR-PRACH resource information.

In this way, the access network device sends the uplink resource indication to the terminal to notify the terminal of the available uplink resource. When the terminal needs to send uplink data, the terminal can send service data on the uplink resource indicated by the uplink resource. Therefore, the steps of accessing the terminal to the network can be reduced, thereby saving signaling overhead and reducing data transmission delay.

In a possible implementation manner, the sending the uplink resource indication to the terminal includes: acquiring PUSCH resource information of an idle PUSCH; scrambling the first DCI including the PUSCH resource information into scrambling information by adopting a preset first RNTI; broadcasting scrambling information through a PDCCH; the receiving of the service data sent by the terminal on the uplink resource indicated by the uplink resource includes: receiving scrambled service data sent by a terminal on a PUSCH corresponding to the PUSCH resource information; and descrambling the scrambled service data according to the first RNTI. The terminal is in inactive state or connected state. The first RNTI belongs to the common control information.

By this implementation, after the access network device broadcasts the first DCI through the PDCCH, the terminal can know that the access network device has an idle PUSCH according to the first RNTI and the first DCI. After the terminal in the inactive state or the connected state receives the first DCI, the terminal may determine the PUSCH corresponding to the PUSCH resource information according to the time advance, and then send the service data on the PUSCH. Therefore, signaling overhead for sending uplink data is reduced, and data transmission efficiency is improved.

In one possible implementation, the wireless communication method further includes: receiving a buffer status report sent by a terminal; determining the data volume of the service data according to the buffer status report; when the data volume of the service data is larger than the preset data volume, generating second downlink control information according to the data volume of the service data, and sending the second downlink control information and feedback information to the terminal; and when the data volume of the service data is less than or equal to the preset data volume, sending feedback information to the terminal.

When the data volume of the service data packet is larger than the preset data volume, determining that the service data is not a small data packet and needs more uplink resources for transmission, and adjusting the connection state of the terminal from an inactive state to a connected state by the access network equipment and the terminal so as to recover RRC connection. And when the data volume of the service data is less than or equal to the preset data volume, the terminal is indicated to transmit a small data packet, so that the RRC connection is not required to be recovered, and the feedback information is sent to the terminal. Specifically, when the service data is correctly received, the feedback information is an ACK frame, and when the service data is not correctly received, the feedback information is a NACK frame. The ACK frame is also called an acknowledgement frame and the NACK frame is also called a negative frame.

In another possible implementation manner, in a case that the uplink resource indication is a system information block type one message and the system information block type one message includes PRACH resource information, gap information, and PUSCH resource information, receiving service data sent by the terminal on an uplink resource indicated by the uplink resource includes: receiving a lead code sent by a terminal in an inactive state on a PRACH corresponding to the PRACH resource information; and receiving the service data from the PUSCH corresponding to the PUSCH resource information according to the preamble and the gap information. The time interval between the PRACH and the PUSCH corresponds to the gap information.

By this implementation, the access network device sends an SIB1 message to the terminal, and since the SIB1 message includes PRACH resource information, gap information, and PUSCH resource information, the terminal in the inactive state may send a preamble on the PRACH and send service data on the PUSCH corresponding to the PUSCH resource information according to the SIB1 message. It should be noted that, after receiving the SIB1 message, the terminal may further send an RRC recovery request to the access network device on the PUSCH corresponding to the PUSCH resource information, and the access network device may recover the RRC connection according to the RRC recovery request.

In another optional embodiment, before sending the uplink resource indication to the terminal, an RRC release message is sent to the terminal, where the RRC release message includes an identifier for storing the scheduling information. By this implementation, after the RRC connection is disconnected, the terminal and the access network device do not need to recover the RRC connection, and the terminal can send service data, such as a small data packet, to the access network device according to the scheduling information.

A third aspect provides a wireless communication method, in which an RRC release message sent by an access network device is received, the RRC release message including an identifier for storing scheduling information and a grant configuration information element including PUSCH resource information; storing the scheduling information according to the identifier of the stored scheduling information; and sending the service data on the PUSCH corresponding to the PUSCH resource information according to the time advance included in the scheduling information. The main body of the wireless communication method is a terminal, for example, and when the RRC connection is disconnected, the terminal may receive an RRC release message sent by the access network device. In case that the RRC release message includes an identifier for storing scheduling information and a grant configuration information element including PUSCH resource information, the access network device allocates a PUSCH to the terminal. When the terminal needs to send uplink data, the terminal can send service data on the PUSCH resource. Therefore, the steps of accessing the terminal to the network can be reduced, thereby saving signaling overhead and reducing data transmission delay.

A fourth aspect provides a wireless communication method in which an RRC release message is sent to a terminal, the RRC release message including an identifier that stores scheduling information and an authorization configuration cell including PUSCH resource information, the authorization configuration cell including physical uplink shared channel, PUSCH, resource information; and receiving the service data sent by the terminal on the PUSCH corresponding to the PUSCH resource information. The execution subject of the wireless communication method is taking an access network device as an example, and when the RRC connection is disconnected, the access network device may send an RRC release message to the terminal. In case that the RRC release message includes an identifier for storing scheduling information and a grant configuration information element including PUSCH resource information, the access network device allocates a PUSCH to the terminal. When the terminal needs to send uplink data, the terminal can send service data on the PUSCH resource. Therefore, the steps of accessing the terminal to the network can be reduced, thereby saving signaling overhead and reducing data transmission delay.

A fifth aspect provides a wireless communication method in which, when a terminal is in an inactive state, the terminal receives a paging indication sent by an access network device at a paging occasion of a PDCCH; descrambling the paging indication using the paging radio network temporary identifier; determining downlink resource information according to the downlink control information obtained by descrambling; receiving the scrambled downlink data from the downlink resource corresponding to the downlink resource information; descrambling the scrambled downlink data according to the RNTI of the terminal; and sending feedback information to the access network equipment according to the time advance included in the scheduling information. The access network equipment and the terminal both store scheduling information. Specifically, the scheduling information includes TA, PDCCH resource information, MCS, SR-PRACH resource information, and the like.

By this implementation, the terminal in the inactive state can monitor the paging occasion of the PDCCH, and after the terminal monitors the paging indication, the terminal can determine the downlink resource for transmitting the downlink data and then receive the downlink data from the downlink resource. And when the downlink data is correctly received, feeding back an ACK (acknowledgement) to the access network equipment according to the TA. And when the downlink data is not correctly received, feeding back NACK to the access network equipment according to the TA.

A sixth aspect provides a wireless communication method in which downlink data transmitted by a core network device is received; sending a paging indication at a paging occasion of the PDCCH, wherein the paging indication is obtained by scrambling downlink control information by using a paging radio network temporary identifier; scrambling downlink data by using a radio network temporary identifier of a terminal; sending scrambled downlink data to a terminal in an inactive state on a downlink resource corresponding to the downlink control information; and receiving feedback information sent by the terminal. The feedback information corresponds to downlink data. The core network equipment and the terminal store scheduling information.

By this implementation, after the access network device sends the paging indication at the paging occasion of the PDCCH, the terminal in the inactive state may monitor the paging occasion of the PDCCH, and after the terminal monitors the paging indication, the terminal may determine the downlink resource for transmitting the downlink data, and then receive the scrambled downlink data from the downlink resource, and descramble the scrambled downlink data using the RNIT of the terminal. When other terminals receive the scrambled downlink data, the scrambled downlink data cannot be descrambled because the terminals do not have the RNTI. And when the downlink data is correctly received, the terminal feeds back ACK to the access network equipment according to the TA. And when the downlink data is not correctly received, feeding back NACK to the access network equipment according to the TA.

A seventh aspect provides a terminal comprising a processor and a memory, the memory for storing a program and data; the processor is configured to implement the wireless communication method of the first aspect, the wireless communication method of the third aspect, or the wireless communication method of the fifth aspect by executing a program.

An eighth aspect provides an access network apparatus comprising a processor and a memory, the memory for storing a program and data; the processor is configured to implement the wireless communication method of the second aspect, the wireless communication method of the fourth aspect, or the wireless communication method of the sixth aspect by executing a program.

A ninth aspect provides a computer-readable storage medium having stored therein instructions, which when run on a computer, cause the computer to perform the method of the above aspects.

A tenth aspect provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system of the present application;

fig. 2 is a flow chart of a wireless communication method in an embodiment of the present application;

FIG. 3 is another signaling diagram of a method of wireless communication in an embodiment of the present application;

FIG. 4 is another signaling diagram of a method of wireless communication in an embodiment of the present application;

fig. 5 is a schematic diagram of a channel between an access network device and a terminal in an embodiment of the present application;

FIG. 6 is another signaling diagram of a method of wireless communication in an embodiment of the present application;

fig. 7 is another signaling diagram of a wireless communication method in an embodiment of the present application;

fig. 8 is a schematic diagram of a terminal in an embodiment of the present application;

fig. 9 is a schematic diagram of an access network device in an embodiment of the present application;

fig. 10 is another schematic diagram of a terminal in an embodiment of the present application;

fig. 11 is another schematic diagram of an access network device in an embodiment of the present application;

fig. 12 is another schematic diagram of a terminal in an embodiment of the present application;

fig. 13 is another schematic diagram of an access network apparatus in an embodiment of the present application;

fig. 14 is another schematic diagram of a terminal in an embodiment of the present application;

fig. 15 is a schematic diagram of a base station in the embodiment of the present application.

Detailed Description

The wireless communication method provided by the application can be applied to a wireless communication system. In one embodiment, the wireless communication system includes a terminal 101, an access network device 102, and a core network device 103.

The terminal 101 may be referred to as a User Equipment (UE), a mobile station, an internet of things (IoT) device, a sensor device, a wireless terminal, and/or a mobile terminal, and is capable of wireless communication in a wireless communication system (also sometimes referred to as a cellular radio system). The terminal may also be referred to as a mobile phone, a cellular phone, a tablet computer or a laptop computer with wireless capabilities. The terminal 101 herein may be, for example, a wearable, portable, pocket, hand-held, computer-included or car-mounted mobile device capable of transmitting voice and/or data with another entity, such as another receiver or server, via a radio access network. The terminal 101 may be a Station (STA), which is any device including a Media Access Control (MAC) and physical layer (PHY) interface for connecting a Wireless Medium (WM) that satisfies IEEE 802.11. The terminal 101 may also be configured to communicate in fifth-generation wireless technologies such as 3GPP related Long Term Evolution (LTE), LTE-Advanced, World Interoperability for Microwave Access (WiMAX), WiMAX, new radio, and so on.

The access network equipment 102 herein may also be denoted as a radio network access node, an access point or a base station, e.g. a Radio Base Station (RBS). Depending on the technology and terminology used, an RBS may in some networks be referred to as a transmitter, "gNB", "gdnodeb", "eNB", "eNodeB", "NodeB" or "B node". Radio network access nodes may be classified into different types according to transmission power and cell size, for example, a macro base station (macro eNodeB), a home eNodeB, or a pico base station (pico base station). The wireless network access node may be a Station (STA), which is any device that contains a medium access control MAC and PHY interface for connecting to the WM that meets IEEE 802.11. The wireless network access node may also be a base station corresponding to a fifth generation (5G) wireless system.

The core network device 103 may be a Mobility Management Entity (MME) in LTE, or an access and mobility management function (AMF) or a user plane management function (UPF) in a 5G system.

When the terminal has no data transmission requirement, the terminal and the base station may suspend the user plane connection, and at this time, the terminal, the base station and the core network device may store S1-AP association, terminal context, bearer context data, and the like for resuming the connection. When the data transmission needs to be recovered, the user plane connection can be initiated to be recovered through the resume flow without reestablishing the user plane connection. The specific process is as follows:

step B1: and the terminal sends a lead code to the base station to carry out uplink synchronization and request uplink resources.

Step B2: and the base station allocates resources for transmitting the RRC connection request to the terminal according to the preamble and sends a random access response to the terminal.

Step B3: the terminal sends a recovery request to the base station, and the recovery request message is used for requesting the base station to recover the user plane connection of the terminal.

Step B4: and the base station searches the context information of the terminal according to the recovery request, recovers the related resources suspended before the terminal and sends an RRC connection recovery message to the terminal.

Step B5: and the terminal restores to the connection state according to the RRC connection restoration message and then sends an RRC restoration completion message to the base station.

Step B6: the terminal and the base station transmit data.

It can be seen that before the terminal recovers the RRC connection, the resource for sending the recovery request needs to be obtained through the preamble and the random access response.

In order to reduce signaling overhead of an access flow and a recovery flow, the application provides a wireless communication method, which can allocate uplink resources or downlink resources to a terminal when or after an RRC connection between the terminal and an access network device is disconnected, so that steps of sending a lead code and the like are not required to be executed before service data is sent. The following describes the wireless communication method provided by the present application in detail:

referring to fig. 2, an embodiment of a wireless communication method provided by the present application includes:

step 201, the access network device sends the uplink resource indication to the terminal, and both the terminal and the access network device store the scheduling information.

In this embodiment, the scheduling information is used for retransmitting data between the terminal and the access network device. Optionally, the scheduling information includes TA, PDCCH resource information, MCS, and SR-PRACH resource information. Alternatively, the scheduling information includes PDCCH resource information, MCS and SR-PRACH resource information.

Step 202, the terminal sends the service data on the uplink resource corresponding to the uplink resource indication.

After receiving the uplink resource indication sent by the access network equipment, the terminal sends service data on the uplink resource corresponding to the uplink resource indication, and the access network equipment receives the service data on the uplink resource corresponding to the uplink resource indication.

It should be understood that how much traffic data is sent by the terminal depends on the size of the uplink resource allocated by the access network device. The size of the uplink resource allocated by the access network device may be set according to actual conditions, which is not limited in this application.

In this embodiment, after receiving the uplink resource indication, the terminal may determine the uplink resource available to the terminal according to the uplink resource indication. When the terminal needs to send uplink data, the terminal and the access network device store the scheduling information, so that the service data can be directly transmitted on the uplink resource without sending a lead code to acquire the scheduling information before sending the service data. Therefore, the steps of accessing the terminal to the network can be reduced, thereby saving signaling overhead and reducing data transmission delay.

Secondly, compared with the existing non-scheduling access technology adopting fixed wireless resources, the access network equipment can dynamically allocate uplink resources, so that the resource utilization rate can be improved.

The following describes a method for acquiring scheduling information:

in an optional embodiment, the wireless communication method further includes:

before receiving an uplink resource indication sent by access network equipment, a terminal receives an RRC release message sent by the access network equipment, wherein the RRC release message comprises an identifier for storing scheduling information; and saving the scheduling information according to the identifier of the saved scheduling information.

In this embodiment, before the access network device sends the uplink resource indication to the terminal, the access network device establishes RRC connection with the terminal. When the RRC connection is disconnected, the access network equipment sends an RRC release message to the terminal, wherein the RRC release message comprises an information element for storing the scheduling information. For example, when the cell value is 1, it indicates that the scheduling information is saved. When the cell value is 0, it indicates that the scheduling information is not saved. The cell value can be set according to the actual situation, and the application is not limited.

It should be noted that the scheduling information corresponds to the terminal one to one, the access network device sends the scheduling information of the terminal to the core network device, and the core network device stores the scheduling information, so as to recover data transmission with the terminal.

Several methods for sending the uplink resource indication are described in detail below:

firstly, broadcasting an uplink resource indication through a PDCCH:

referring to fig. 3, an embodiment of a wireless communication method of the present application includes:

step 301, the access network device obtains the physical uplink shared channel resource information of the idle physical uplink shared channel.

In this embodiment, both the access network device and the terminal store scheduling information. The scheduling information comprises TA, PDCCH resource information, MCS, SR-PRACH resource information and the like.

Step 302, the access network device scrambles the first downlink control information including the physical uplink shared channel resource information into scrambled information by using a preset first radio network temporary identifier.

The first DCI may indicate a plurality of PUSCH resource blocks allocated to a plurality of terminals, and the plurality of PUSCH resource blocks may be obtained by equally dividing all idle PUSCH resources, so that equal division scheduling may be performed. Or, the plurality of PUSCH resource blocks are obtained by dividing all the idle PUSCH resources according to a differential method, so that differential scheduling can be performed.

Step 303, the access network device broadcasts the scrambling information through the downlink control channel.

After the access network device broadcasts the scrambling information through the PDCCH, because the terminal in the inactive state or the connected state stores the scheduling information, the terminal can monitor the PDCCH according to the PDCCH resource information included in the scheduling information. After the terminal receives the scrambling information on the PDCCH, step 304 is performed.

And step 304, the terminal descrambles the scrambled information into downlink control information according to a preset first radio network temporary identifier.

And after acquiring the PUSCH resource information of the idle PUSCH from the downlink control information, the terminal determines the idle PUSCH of the access network equipment according to the PUSCH resource information.

And 305, scrambling the service data by adopting the first wireless network temporary identifier.

And step 306, the terminal sends the scrambled service data on the PUSCH corresponding to the PUSCH resource information according to the time advance.

Because the terminal stores the time advance, the terminal in inactive state or connected state can perform uplink synchronization according to the time advance. Specifically, the terminal time advance and the PUSCH resource information determine the PUSCH, and the scrambled service data is sent on the PUSCH. The connected state is also called active state in 5G NR. Optionally, when the PUSCH corresponding to the PUSCH resource information is greater than or equal to the resource required by the terminal to transmit the service data, the terminal may randomly select a partial PUSCH from the PUSCH and transmit the service data on the selected PUSCH.

In this embodiment, the access network device may broadcast the idle PUSCH resource information, and when the terminal needs to transmit uplink data, the terminal may randomly select the PUSCH to upload data, so that the idle PUSCH may be effectively utilized, the access signaling overhead may be saved, and the data transmission duration may be shortened. Compared with the existing terminal access process, the method and the device can save about 80% of signaling overhead when small data packets are uploaded.

Second, the present embodiment broadcasts an idle PUSCH instead of allocating a fixed uplink resource to a terminal. Compared with the existing non-scheduling technology, the method and the device can improve the resource utilization rate.

In an optional embodiment, the wireless communication method further includes:

receiving a buffer status report sent by a terminal; determining the data volume of the service data according to the buffer status report; when the data volume of the service data is larger than the preset data volume, generating second DCI according to the data volume of the service data, and sending the second DCI and feedback information to the terminal; and when the data volume of the service data is less than or equal to the preset data volume, sending feedback information to the terminal.

In this embodiment, when the data amount of the service data is greater than the preset data amount, it indicates that the terminal needs to send the service data subsequently, the terminal may send an RRC recovery request on a PUSCH corresponding to the PUSCH resource information, the access network device adjusts the connection state of the terminal from an inactive state to a connected state according to the RRC recovery request to recover the RRC connection, and the access network device allocates uplink resources to the terminal and generates a second DCI, and then feeds back an ACK and the second DCI to the terminal, and the terminal may determine, according to the ACK, that the previously transmitted service data is correctly received, and may determine, according to the second DCI, the uplink resources to which the terminal retransmits the service data. And if the access network equipment does not correctly receive the service data, the NACK and the second DCI are fed back to the terminal.

It should be noted that the RRC recovery request and the service data may be sent together, and compared with separately sending the RRC recovery request and the service data in the existing recovery procedure, the signaling overhead may be saved in this embodiment. In addition, the PDCCH transmitting the first DCI and the PDCCH transmitting the second DCI are different PDCCHs.

And when the data volume of the service data is less than or equal to the preset data volume, indicating that the service data is a small data packet. The small data packet refers to a data packet with a small number of bytes, and the small data packet refers to a data packet with several or dozens of bytes. In some cases, a small data packet may also be a data packet of approximately one hundred bytes. And if the access network equipment correctly receives the service data, feeding back an ACK to the terminal. And if the access network equipment does not correctly receive the service data, the NACK is fed back to the terminal. It should be understood that, when transmitting a small data packet, the terminal may transmit via the PUSCH corresponding to the PUSCH resource information, so that it is not necessary to recover the RRC connection, and it is not necessary to issue DCI to indicate a new uplink resource.

Secondly, sending an uplink resource indication through an SIB message:

referring to fig. 4, another embodiment of the wireless communication method of the present application includes:

step 401, the access network device sends a system information block type one message to the terminal.

In this embodiment, the access network device and the terminal are configured with scheduling information. The scheduling information includes PDCCH resource information, MCS, SR-PRACH resource information, and the like.

The SIB1 message includes PRACH resource information, GAP information, and PUSCH resource information. After receiving the SIB1 message, the terminal in the inactive state can determine the PRACH according to the PRACH resource information, and can determine the PUSCH according to the GAP information and the PUSCH resource information. The PUSCH allocated to the terminal may be set according to actual needs, and the present application is not limited.

Step 402, the terminal sends the preamble and the service data to the access network device.

Specifically, the terminal sends the service data on the physical uplink shared channel corresponding to the physical uplink shared channel resource information, based on the preamble sent by the terminal on the physical random access channel corresponding to the physical random access channel resource information.

And the access network equipment performs blind detection on the PRACH corresponding to the PRACH resource information, and after the lead code is detected, the access network equipment can determine the PUSCH according to the lead code and the GAP information and acquire service data on the PUSCH. Specifically, the service data may be obtained by demodulating PUSCH using MSGB-RNTI, which is a type of temporary identifier included in a random access response specified by the 3GPP 38.321 protocol.

In this embodiment, the preamble and the service data are transmitted together, which reduces the steps of transmitting uplink data. When small data packets are transmitted, about 50% of signaling overhead can be saved, and the data transmission speed can also be improved.

In an optional embodiment, the wireless communication method further includes:

When the data volume of the service data to be transmitted by the terminal is greater than the preset data volume, the terminal can also send an RRC recovery request on a PUSCH corresponding to the PUSCH resource information, after the access network equipment receives the RRC recovery request sent by the terminal, the connection state of the terminal can be adjusted from an inactive state to an active state according to the RRC recovery request, uplink resources are distributed to the terminal according to the data volume of the service data, second DCI is generated according to the uplink resources, and after the terminal receives the second DCI sent by the access network equipment, the uplink resources for retransmitting the service data by the terminal can be determined according to the second DCI. It should be understood that, if the terminal does not store the timing advance, the access network device may also send the timing advance, the feedback information, and the second DCI together to the terminal, so that the terminal performs subsequent transmission according to the timing advance.

And when the data volume of the service data is less than or equal to the preset data volume, sending feedback information to the terminal. And if the access network equipment correctly receives the service data, feeding back an ACK to the terminal. And if the access network equipment does not correctly receive the service data, the NACK is fed back to the terminal.

Fig. 5 is a schematic diagram of a channel between the access network device and the terminal in the embodiment shown in fig. 4. Referring to fig. 5, the terminal transmits a preamble on a physical random access channel and transmits service data on a physical uplink shared channel. The preamble and the service data are transmitted together, so that the steps of accessing the terminal to the network can be reduced, thereby saving signaling overhead and reducing data transmission delay.

Since the signal is transmitted in space with a time delay, a time advance needs to be configured at the time of transmission to eliminate the time delay. The base station sends the downlink control information in the physical downlink control channel, and the terminal can determine the position of the physical downlink control channel according to the time advance so as to obtain the downlink control information.

Thirdly, sending an uplink resource indication through an RRC release message:

referring to fig. 6, another embodiment of the wireless communication method of the present application includes:

step 601, the access network equipment sends a radio resource control release message to the terminal.

In this embodiment, the RRC release message includes an identifier for storing the scheduling information and an authorization configuration information element. Specifically, a grant configuration information element, also referred to as a configuredgontnfig element, is configured in the suspendConfig field of the RRC release message, and the grant configuration information element includes PUSCH resource information.

Step 602, the terminal stores the scheduling information according to the identifier of the stored scheduling information.

The scheduling information comprises TA, PDCCH resource information, MCS, SR-PRACH resource information and the like.

Step 603, the terminal sends the service data to the access network device.

Specifically, the terminal sends the service data on the physical uplink shared channel corresponding to the physical uplink shared channel resource information according to the time advance.

In this embodiment, when the access network device disconnects RRC connection with the terminal, the terminal may store the scheduling information, and determine the uplink resource that may be used for transmitting service data according to the PUSCH resource information. In this way, the terminal can transmit uplink data according to the uplink resource indication included in the RRC release message. When transmitting small data packets, about 80% of the signaling overhead can be saved.

In an optional embodiment, the wireless communication method further includes:

When the data volume of the service data to be transmitted by the terminal is greater than the preset data volume, the terminal can send an RRC recovery request on a PUSCH corresponding to the PUSCH resource information, after the access network equipment receives the RRC recovery request sent by the terminal, the connection state of the terminal can be adjusted from an inactive state to an active state according to the RRC recovery request, uplink resources are distributed to the terminal according to the data volume of the service data, second DCI is generated according to the uplink resources, and after the terminal receives the second DCI sent by the access network equipment, the uplink resources for retransmitting the service data can be determined according to the second DCI.

And when the data volume of the service data is less than or equal to the preset data volume, the service data is represented as a small data packet. And sending the feedback information to the terminal. And if the access network equipment correctly receives the service data, feeding back an ACK to the terminal. And if the access network equipment does not correctly receive the service data, the NACK is fed back to the terminal.

The method for transmitting uplink data is described above, and the method for transmitting downlink data is described below. Referring to fig. 7, another embodiment of the wireless communication method of the present application includes:

step 701, the access network device receives downlink data sent by the core network device.

In this embodiment, the core network device, the access network device, and the terminal all store scheduling information. The scheduling information comprises TA, PDCCH resource information, MCS, SR-PRACH resource information and the like.

It should be noted that, when sending the small data packet in the downlink, the core network device may directly send the small data packet to the access network device without sending a paging message to the access network device.

Step 702, the access network equipment sends a paging indication to the terminal at a Paging Occasion (PO) of the physical downlink control channel.

After the access network equipment receives the downlink data, the DCI is scrambled by using the paging radio network temporary identifier P-CNTI before the downlink data is sent, and a paging indication is obtained. Optionally, the DCI carries the downlink small data packet identifier. Optionally, the short message indicator of the DCI format 1_0 is set to 00, which indicates that the downlink small data packet is sent. Optionally, 3 bits in reserved bits in the DCI are used to store information of an uplink resource for the terminal to send the feedback information.

And step 703, the terminal descrambles the paging indication by using the paging radio network temporary identifier.

And the terminal monitors at the paging occasion of the PDCCH, and descrambles the paging indication by using a paging radio network temporary identifier (P-CNTI) after receiving the paging indication sent by the access network equipment to obtain the downlink control information.

Step 704, the terminal determines the downlink resource information according to the downlink control information obtained by descrambling.

Step 705, the access network device scrambles the downlink data by using the wireless network temporary identifier of the terminal.

And the wireless network temporary identifications of the terminals correspond to the terminals one by one. After the downlink data is scrambled by using the wireless network temporary identifier of the terminal, only the terminal corresponding to the wireless network temporary identifier of the terminal can descramble, and other terminals cannot descramble, so that the safety of data transmission can be provided.

Step 706, the access network device sends the scrambled downlink data to the terminal in the inactive state.

Specifically, on the downlink resource corresponding to the downlink resource information, the access network device sends the scrambled downlink data to the terminal in the inactive state.

The access network device also carries a C-RNTI indication in a MAC control information element (CE). The C-RNTIs correspond to the terminals one by one, and each terminal can determine downlink data to be received according to the C-RNTIs.

And 707, the terminal descrambles the scrambled downlink data according to the wireless network temporary identifier of the terminal.

And the terminal monitors the downlink resource information according to the downlink resource information carried by the downlink control information. And after receiving the scrambled downlink data from the downlink resource, the terminal descrambles the scrambled downlink data according to the first RNTI.

Step 708, the terminal sends feedback information to the access network device according to the timing advance.

And after descrambling to obtain the downlink data, determining uplink resources according to the time advance and uplink resource information carried by the downlink control information, and sending ACK (acknowledgement character) to the access network equipment on the uplink resources. And when descrambling fails, determining uplink resources according to the time advance and uplink resource information carried by the downlink control information, and sending NACK (negative acknowledgement) to the access network equipment on the uplink resources. The access network equipment may receive an ACK or NACK from the uplink resource according to the timing advance.

In the embodiment, the access network equipment can send the downlink data to the terminal without sending the paging message, so that the signaling overhead can be reduced, and the transmission time can be shortened. Compared with the prior paging mechanism for sending downlink data, the signaling overhead and the transmission time of the method can be reduced by about 80%.

In an optional embodiment, the wireless communication method further includes:

the terminal adjusts the connection state of the terminal from inactive state to active state, and the access network equipment adjusts the connection state of the terminal from inactive state to active state, so that the RRC connection between the terminal and the access network equipment is recovered. When the access network device needs to transmit downlink data, the downlink data can be continuously transmitted according to the PDCCH indicated by the DCI.

The present application provides a terminal capable of implementing the steps performed by the terminal in the embodiments shown in fig. 2, fig. 3 or fig. 4, or in alternative embodiments. Referring to fig. 8, an embodiment of the terminal 800 includes:

a receiving module 801, configured to receive an uplink resource indication sent by an access network device, where scheduling information is stored in both a terminal and the access network device;

a sending module 802, configured to send service data on an uplink resource corresponding to the uplink resource indication.

In this embodiment, for the steps and beneficial effects executed by each module in the terminal 800, reference may be made to the description of the steps executed by the terminal in the above illustrated embodiment or optional embodiments, and details are not described here again.

In an alternative embodiment of the method of the invention,

a receiving module 801, configured to receive, when the terminal is in an inactive state and the scheduling information includes a time advance, scrambling information sent by an access network device through a downlink control channel PDCCH; descrambling the scrambling information into downlink control information according to a preset first RNTI, wherein the first RNTI belongs to common control information, and the downlink control information comprises PUSCH resource information of an idle Physical Uplink Shared Channel (PUSCH);

a sending module 802, specifically configured to scramble the service data using the first RNTI; and sending the scrambled service data on the PUSCH corresponding to the PUSCH resource information according to the time advance.

In an alternative embodiment of the method of the invention,

a receiving module 801, configured to receive scrambling information sent by an access network device through a PDCCH when a terminal is in a connected state and scheduling information includes a time advance; descrambling the scrambling information into downlink control information according to a preset first RNTI, wherein the first RNTI belongs to common control information, and the downlink control information comprises PUSCH resource information of an idle PUSCH;

In a further alternative embodiment of the method,

a receiving module 801, configured to receive a system information block type one message broadcasted by an access network device when a terminal is in an inactive state and scheduling information does not include a time advance, where the system information block type one message includes PRACH resource information, gap information, and PUSCH resource information;

a sending module 802, specifically configured to send a preamble on the PRACH corresponding to the PRACH resource information; and transmitting the service data on the PUSCH corresponding to the PUSCH resource information, wherein the time interval between the PRACH and the PUSCH corresponds to the gap information.

In a further alternative embodiment of the method,

the receiving module 801 is further configured to receive an RRC release message sent by the access network device before the receiving module 801 receives the uplink resource indication sent by the access network device, where the RRC release message includes an identifier for storing the scheduling information;

the terminal 800 further includes:

and the storage module is used for storing the scheduling information according to the identifier of the stored scheduling information.

The present application provides an access network device, which is capable of implementing the steps performed by the access network device in the embodiments shown in fig. 2, fig. 3, or fig. 4. Referring to fig. 9, one embodiment of an access network apparatus 900 comprises:

a sending module 901, configured to send an uplink resource indication to a terminal, where scheduling information is stored in both an access network device and the terminal;

a receiving module 902, configured to receive service data sent by the terminal on an uplink resource indicated by the uplink resource.

In this embodiment, for the steps and beneficial effects executed by each module in the access network device 900, reference may be made to the corresponding description of the steps executed by the access network device in the above illustrated embodiment or optional embodiments, and details are not described here again.

In an optional embodiment, the access network apparatus 900 further comprises:

a sending module 901, configured to specifically acquire PUSCH resource information of an idle physical uplink shared channel PUSCH; scrambling first downlink control information into scrambling information by adopting a preset first RNTI (radio network temporary identifier), wherein the first downlink control information comprises PUSCH (physical uplink shared channel) resource information, and the first RNTI belongs to common control information; the scrambling information is broadcasted through the PDCCH, and the terminal is in an inactive state or a connected state;

a receiving module 902, specifically configured to receive scrambled service data on a PUSCH corresponding to the PUSCH resource information; and descrambling the scrambled service data according to the first RNTI.

In a further alternative embodiment of the method,

a receiving module 902, further configured to receive a buffer status report sent by the terminal;

the access network apparatus 900 further includes:

the processing module is also used for determining the data volume of the service data according to the buffer status report;

the processing module is further used for generating a second DCI according to the data volume of the service data when the data volume of the service data is larger than the preset data volume; feeding back the second DCI and the feedback information to the terminal; and when the data volume of the service data is less than or equal to the preset data volume, sending feedback information to the terminal.

In another optional embodiment, the uplink resource indication is a system information block type one message and the system information block type one message includes PRACH resource information, gap information, and PUSCH resource information;

a receiving module 902, configured to specifically receive a preamble sent by a terminal in an inactive state on a PRACH corresponding to the PRACH resource information; and receiving service data from the PUSCH corresponding to the PUSCH resource information according to the preamble and the gap information, wherein the time interval between the PRACH and the PUSCH corresponds to the gap information.

In a further alternative embodiment of the method,

the sending module 901 is further configured to send a radio resource control RRC release message to the terminal before the sending module sends the uplink resource indication to the terminal, where the RRC release message includes an identifier for storing the scheduling information.

The present application provides a terminal capable of implementing the steps performed by the terminal in the embodiment or alternative embodiments of fig. 6. Referring to FIG. 10, one embodiment of terminal 1000 can include:

a receiving module 1001, configured to receive a radio resource control RRC release message sent by an access network device, where the RRC release message includes an identifier for storing scheduling information and an authorization configuration cell, and the authorization configuration cell includes PUSCH resource information of a physical uplink shared channel;

a storing module 1002, configured to store scheduling information according to an identifier of the stored scheduling information, where the scheduling information includes a time advance;

a sending module 1003, configured to send service data on the PUSCH corresponding to the PUSCH resource information according to the time advance.

The present application provides an access network device capable of implementing the steps performed by the access network device in the embodiment or alternative embodiments of fig. 6. Referring to fig. 11, one embodiment of an access network device 1100 includes:

a sending module 1101, configured to send an RRC release message to the terminal, where the RRC release message includes an identifier for storing scheduling information and an authorization configuration cell, and the authorization configuration cell includes PUSCH resource information;

a receiving module 1102, configured to receive service data sent by the terminal on the PUSCH corresponding to the PUSCH resource information.

The present application provides a terminal capable of implementing the steps performed by the terminal in the embodiment or alternative embodiments of fig. 7. Referring to fig. 12, one embodiment of a terminal 1200 includes:

a receiving module 1201, configured to receive, when a terminal is in an inactive state, a paging indication sent by an access network device at a paging occasion of a PDCCH, where both the access network device and the terminal store scheduling information, and the scheduling information includes a time advance;

a processing module 1202 for descrambling the paging indication using the paging radio network temporary identifier; determining downlink resource information according to the downlink control information obtained by descrambling;

the receiving module 1201 is further configured to receive scrambled downlink data from a downlink resource corresponding to the downlink resource information;

a processing module 1202, configured to descramble the scrambled downlink data according to the RNTI of the terminal;

a sending module 1203, configured to send feedback information to the access network device according to the time advance.

The present application provides an access network device, which is capable of implementing the steps performed by the access network device in the embodiment or the optional embodiment shown in fig. 7. Referring to fig. 13, one embodiment of an access network apparatus 1300 comprises:

a receiving module 1301, configured to receive downlink data sent by a core network device;

a sending module 1303, configured to send a paging indicator at a paging occasion of the PDCCH, where the paging indicator is obtained by scrambling downlink control information with a paging radio network temporary identifier, and the downlink control information includes downlink resource information;

a processing module 1302, configured to scramble downlink data using a radio network temporary identifier of the terminal;

the sending module 1303 is further configured to send scrambled downlink data to the terminal in the inactive state on the downlink resource corresponding to the downlink resource information, where the core network device, the access network device, and the terminal all store scheduling information;

the receiving module 1301 is further configured to receive feedback information sent by the terminal, where the feedback information corresponds to the downlink data.

Referring to fig. 14, a terminal and an access network device according to an embodiment of the present application are described below with reference to a hardware structure, where an embodiment of a terminal 1400 includes:

baseband processor 1401, radio frequency transceiver 1402, antenna 1403, memory 1404 and application processor 1405, where baseband processor 1401, memory 1404 and application processor 1405 are connected to each other and radio frequency transceiver 1402 is connected to baseband processor 1401 and antenna 1403, respectively. The number of the baseband processor 1401, the radio frequency transceiver 1402, the antenna 1403, the memory 1404 and the application processor 1405 may be one or more, among others.

It should be appreciated that the baseband processor 1401 referred to in this embodiment may be a Digital Signal Processor (DSP). The application processor 1405 may be a Central Processing Unit (CPU), or may be other general purpose processor, an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or 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 1404 referred to in this embodiment can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). It should be noted that, for a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and the like, the memory may be integrated into the processor.

The radio frequency transceiver 1402 is configured to convert a baseband signal into a radio frequency signal, or convert a radio frequency signal into a baseband signal.

Antenna 1403 is used to provide signal gain. The number of antennas 1403 may be one or more.

Although not shown in fig. 14, terminal 1400 may also include other components, such as power supplies, sensors, multimedia units, input and output devices, and the like.

In this embodiment, for the steps and beneficial effects executed by each unit in terminal 1400, reference may be made to the corresponding descriptions of the steps executed by the terminal in the above illustrated embodiments or optional embodiments, and no further description is given here.

Taking an access network device as an example of a base station, referring to fig. 15, a base station 1500 includes: an indoor Base Band Unit (BBU) 1501, a Remote Radio Unit (RRU) 502, and an antenna 503.

The BBU1501 is used to implement a modulation function, a demodulation function, an encoding function, a decoding function, a storage function, and a signaling processing function. For example, binary data is modulated into a baseband signal, or the baseband signal is demodulated into binary data.

The RRU1502 is configured to convert a baseband signal to a radio frequency signal or vice versa.

The antenna 1503 is used to provide signal gain. The number of the antennas 503 may be one or more.

Although not shown in fig. 5, base station 1500 may also include other components, such as a power supply, input and output devices, and the like.

In this embodiment, for the steps and beneficial effects executed by each unit in the base station 1500, reference may be made to the corresponding description of the steps executed by the access network device in the above embodiment or optional embodiments, and details are not described here again.

The present application provides a computer storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method described in any one or alternative embodiments above.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions described in accordance with the present application are generated, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more 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 (e.g., Solid State Disk (SSD)), among others.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. A method of wireless communication, comprising:

receiving an uplink resource indication sent by access network equipment, wherein the access network equipment stores scheduling information;

and sending service data on the uplink resource corresponding to the uplink resource indication.

2. The method of claim 1,

the receiving of the uplink resource indication sent by the access network device includes: receiving scrambling information sent by the access network equipment through a downlink control channel (PDCCH) under the condition that a terminal is in an inactive state and the scheduling information comprises a time advance; descrambling the scrambling information into downlink control information according to a preset first Radio Network Temporary Identifier (RNTI), wherein the downlink control information comprises PUSCH resource information of an idle Physical Uplink Shared Channel (PUSCH);

the sending of the service data on the uplink resource corresponding to the uplink resource indication includes: scrambling service data by adopting the first RNTI; and sending the scrambled service data on the PUSCH corresponding to the PUSCH resource information according to the time advance.

3. The method of claim 1,

the receiving of the uplink resource indication sent by the access network device includes: receiving scrambling information sent by the access network equipment through a PDCCH (physical downlink control channel) under the condition that a terminal is in a connected state and the scheduling information comprises a time advance; descrambling the scrambling information into downlink control information according to a preset first RNTI, wherein the downlink control information comprises PUSCH resource information of an idle PUSCH;

4. The method of claim 1,

the receiving of the uplink resource indication sent by the access network device includes: under the condition that a terminal is in an inactive state and the scheduling information does not include a time advance, receiving a system information block type one message broadcasted by access network equipment, wherein the system information block type one message comprises Physical Random Access Channel (PRACH) resource information, gap information and Physical Uplink Shared Channel (PUSCH) resource information;

the sending of the service data on the uplink resource corresponding to the uplink resource indication includes: sending a lead code on the PRACH corresponding to the PRACH resource information; and sending service data on the PUSCH corresponding to the PUSCH resource information, wherein the time interval between the PRACH and the PUSCH corresponds to the gap information.

5. The method according to any of claims 1 to 4, wherein before the receiving the uplink resource indication sent by the access network device, the method further comprises:

receiving a Radio Resource Control (RRC) release message sent by the access network equipment, wherein the RRC release message comprises an identifier for storing scheduling information;

and saving the scheduling information according to the identifier of the saved scheduling information.

6. A method of wireless communication, comprising:

sending an uplink resource indication to a terminal, wherein the terminal stores scheduling information;

and receiving the service data sent by the terminal on the uplink resource indicated by the uplink resource.

7. The method of claim 6,

the sending the uplink resource indication to the terminal includes: acquiring PUSCH resource information of an idle Physical Uplink Shared Channel (PUSCH); scrambling first downlink control information including the PUSCH resource information into scrambling information by adopting a preset first Radio Network Temporary Identifier (RNTI); the scrambling information is broadcasted through a downlink control channel (PDCCH), and the terminal is in an inactive state or a connected state;

the receiving the service data sent by the terminal on the uplink resource indicated by the uplink resource includes: receiving the scrambled service data sent by the terminal on the PUSCH corresponding to the PUSCH resource information; and descrambling the scrambled service data according to the first RNTI.

8. The method of claim 7, further comprising:

receiving a buffer status report sent by the terminal;

determining the data volume of the service data according to the buffer status report;

when the data volume of the service data is larger than the preset data volume, generating second downlink control information according to the data volume of the service data, and sending the second downlink control information and feedback information to the terminal;

and when the data volume of the service data is less than or equal to the preset data volume, sending feedback information to the terminal.

9. The method of claim 7, wherein the uplink resource indication is a system information block type one message and the system information block type one message includes Physical Random Access Channel (PRACH) resource information, gap information, and Physical Uplink Shared Channel (PUSCH) resource information;

the receiving the service data sent by the terminal on the uplink resource indicated by the uplink resource includes:

receiving a lead code sent by a terminal in an inactive state on a PRACH corresponding to the PRACH resource information;

and receiving service data from a PUSCH corresponding to the PUSCH resource information according to the preamble and the gap information, wherein the time interval between the PRACH and the PUSCH corresponds to the gap information.

10. The method according to any of claims 6 to 9, wherein before said sending an uplink resource indication to the terminal, the method further comprises:

and sending a Radio Resource Control (RRC) release message to the terminal, wherein the RRC release message comprises an identifier for storing scheduling information.

11. A method of wireless communication, comprising: (ii) a

Receiving a Radio Resource Control (RRC) release message sent by access network equipment, wherein the RRC release message comprises an identifier for storing scheduling information and an authorization configuration cell, and the authorization configuration cell comprises Physical Uplink Shared Channel (PUSCH) resource information;

saving scheduling information according to the identifier of the saved scheduling information, wherein the scheduling information comprises a time lead;

and sending service data on the PUSCH corresponding to the PUSCH resource information according to the time advance.

12. A method of wireless communication, comprising:

sending an RRC release message to a terminal, wherein the RRC release message comprises an identifier for storing scheduling information and an authorization configuration cell, and the authorization configuration cell comprises Physical Uplink Shared Channel (PUSCH) resource information;

and receiving the service data sent by the terminal on the PUSCH corresponding to the PUSCH resource information.

13. A method of wireless communication, comprising:

when a terminal is in an inactive state, the terminal receives a paging indication sent by access network equipment at a paging occasion of a Physical Downlink Control Channel (PDCCH), wherein scheduling information is stored in both the access network equipment and the terminal, and the scheduling information comprises a time lead;

descrambling the paging indication using the paging radio network temporary identifier;

determining downlink resource information according to the downlink control information obtained by descrambling;

receiving the scrambled downlink data from the downlink resource corresponding to the downlink resource information;

descrambling the scrambled downlink data according to the radio network temporary identifier of the terminal;

and sending feedback information to the access network equipment according to the time advance.

14. A method of wireless communication, comprising:

receiving downlink data sent by core network equipment;

sending a paging indication at a paging occasion of a Physical Downlink Control Channel (PDCCH), wherein the paging indication is obtained by scrambling downlink control information by using a paging radio network temporary identifier;

scrambling the downlink data by using a radio network temporary identifier of a terminal;

sending scrambled downlink data to the terminal in an inactive state on a downlink resource corresponding to the downlink control information, wherein scheduling information is stored in both the core network device and the terminal;

and receiving feedback information sent by the terminal.

15. A terminal, comprising:

a receiving module, configured to receive an uplink resource indication sent by an access network device, where scheduling information is stored in both the terminal and the access network device;

and the sending module is used for sending the service data on the uplink resource corresponding to the uplink resource indication.

16. The terminal of claim 15,

the receiving module is specifically configured to receive scrambling information sent by the access network device through a downlink control channel PDCCH when the terminal is in an inactive state and the scheduling information includes a time advance; descrambling the scrambling information into downlink control information according to a preset first Radio Network Temporary Identifier (RNTI), wherein the downlink control information comprises PUSCH resource information of an idle Physical Uplink Shared Channel (PUSCH);

the sending module is specifically configured to scramble the service data by using the first RNTI; and sending the scrambled service data on the PUSCH corresponding to the PUSCH resource information according to the time advance.

17. The terminal of claim 15,

the receiving module is specifically configured to receive scrambling information sent by the access network device through the PDCCH when the terminal is in a connected state and the scheduling information includes a timing advance; descrambling the scrambling information into downlink control information according to a preset first RNTI, wherein the downlink control information comprises PUSCH resource information of an idle PUSCH;

18. The terminal of claim 15,

the receiving module is specifically configured to receive a system information block type one message broadcast by an access network device when a terminal is in an inactive state and the scheduling information does not include a time advance, where the system information block type one message includes PRACH resource information, gap information, and PUSCH resource information;

the sending module is specifically configured to send a preamble on the PRACH corresponding to the PRACH resource information; and sending service data on the PUSCH corresponding to the PUSCH resource information, wherein the time interval between the PRACH and the PUSCH corresponds to the gap information.

19. The terminal according to any of the claims 15 to 18,

the receiving module is further configured to receive a radio resource control RRC release message sent by the access network device before the receiving module receives an uplink resource indication sent by the access network device, where the RRC release message includes an identifier for storing scheduling information;

the terminal further comprises:

20. An access network device, comprising:

a sending module, configured to send an uplink resource indication to a terminal, where scheduling information is stored in both the access network device and the terminal;

and the receiving module is used for receiving the service data sent by the terminal on the uplink resource indicated by the uplink resource.

21. The access network apparatus of claim 20,

the sending module is specifically configured to obtain PUSCH resource information of an idle physical uplink shared channel PUSCH; scrambling first downlink control information into scrambling information by adopting a preset first Radio Network Temporary Identifier (RNTI), wherein the first downlink control information comprises the PUSCH resource information; the scrambling information is broadcasted through a downlink control channel (PDCCH), and the terminal is in an inactive state or a connected state;

the receiving module is specifically configured to receive scrambled service data on a PUSCH corresponding to the PUSCH resource information; and descrambling the scrambled service data according to the first RNTI.

22. The access network apparatus of claim 21,

the receiving module is further configured to receive a buffer status report sent by the terminal;

the access network device further includes:

the processing module is further used for determining the data volume of the service data according to the buffer status report;

the processing module is further configured to generate second downlink control information according to the data volume of the service data and send the second downlink control information and feedback information to the terminal when the data volume of the service data is greater than a preset data volume; and when the data volume of the service data is less than or equal to the preset data volume, sending feedback information to the terminal.

23. The access network device of claim 20, wherein the uplink resource indication is a system information block type one message and the system information block type one message includes Physical Random Access Channel (PRACH) resource information, gap information, and Physical Uplink Shared Channel (PUSCH) resource information;

the receiving module is specifically configured to receive a preamble sent by the inactive terminal on the PRACH corresponding to the PRACH resource information; and receiving service data from a PUSCH corresponding to the PUSCH resource information according to the preamble and the gap information, wherein the time interval between the PRACH and the PUSCH corresponds to the gap information.

24. The access network device according to any of claims 20 to 23,

the sending module is further configured to send a radio resource control RRC release message to the terminal before the sending module sends the uplink resource indication to the terminal, where the RRC release message includes an identifier for storing the scheduling information.

25. A terminal, comprising:

a receiving module, configured to receive a radio resource control RRC release message sent by an access network device, where the RRC release message includes an identifier for storing scheduling information and an authorization configuration cell, and the authorization configuration cell includes PUSCH resource information of a physical uplink shared channel;

the storage module is used for storing scheduling information according to the identifier of the stored scheduling information, wherein the scheduling information comprises a time lead;

and the sending module is used for sending the service data on the PUSCH corresponding to the PUSCH resource information according to the time advance.

26. An access network device, comprising:

a sending module, configured to send an RRC release message to a terminal, where the RRC release message includes an identifier for storing scheduling information and an authorization configuration cell, and the authorization configuration cell includes PUSCH resource information of a physical uplink shared channel;

and the receiving module is used for receiving the service data sent by the terminal on the PUSCH corresponding to the PUSCH resource information.

27. A terminal, comprising:

a receiving module, configured to receive, when the terminal is in an inactive state, a paging indication sent by an access network device at a paging occasion of a physical downlink control channel PDCCH, where the access network device and the terminal both store scheduling information, and the scheduling information includes a time advance;

a processing module for descrambling the paging indication using the paging radio network temporary identifier; determining downlink resource information according to the downlink control information obtained by descrambling;

the receiving module is further configured to receive scrambled downlink data from a downlink resource corresponding to the downlink resource information;

the processing module is further configured to descramble the scrambled downlink data according to the radio network temporary identifier of the terminal;

and the sending module is used for sending feedback information to the access network equipment according to the time advance.

28. An access network device, comprising:

a receiving module, configured to receive downlink data sent by a core network device;

a sending module, configured to send a paging indicator at a paging occasion of a physical downlink control channel PDCCH, where the paging indicator is obtained by scrambling downlink control information using a paging radio network temporary identifier, and the downlink control information includes downlink resource information;

the processing module is used for scrambling the downlink data by using a radio network temporary identifier of a terminal;

the sending module is further configured to send scrambled downlink data to a terminal in an inactive state on a downlink resource corresponding to the downlink resource information, where the core network device, the access network device, and the terminal all store scheduling information;

the receiving module is further configured to receive feedback information sent by the terminal.

29. A computer storage medium comprising instructions that, when run on a computer, cause the computer to perform the method of any one of claims 1 to 14.