WO2020151534A1

WO2020151534A1 - Communication method and device

Info

Publication number: WO2020151534A1
Application number: PCT/CN2020/072087
Authority: WO
Inventors: 李秉肇; 单宝堃; 许斌; 陈磊
Original assignee: 华为技术有限公司
Priority date: 2019-01-24
Filing date: 2020-01-14
Publication date: 2020-07-30
Also published as: CN111479332B; CN111479332A

Abstract

The embodiments of the present invention disclose a communication method and device. Said method comprises: receiving configuration information from an access network device, the configuration information comprising radio resource control (RRC) establishment request configuration information; and generating an RRC establishment request according to the RRC establishment request configuration information, the RRC establishment request carrying a first identifier, the RRC establishment request further carrying at least one of a second identifier or non access stratum (NAS) signaling, the first identifier being the identifier of a terminal device, and the second identifier being the identifier of a core network device; and sending the RRC establishment request to the access network device. The embodiments of the present invention improve communication efficiency.

Description

Communication method and equipment

Technical field

The embodiments of the present invention relate to the field of communication technology, and in particular to a communication method and device.

Background technique

In the communication field, in order to communicate, a terminal device needs to establish a radio resource control (Radio Resource Control, RRC) layer connection with an access network device. Currently, the RRC connection between the terminal device and the access network device requires multiple information exchanges to complete. However, when the distance between the terminal device and the access network device is large, it takes a long time for the terminal device to exchange information with the access network device. Therefore, it takes a long time to establish an RRC connection. As a result, the communication efficiency is reduced.

Summary of the invention

The embodiment of the invention discloses a communication method and equipment for improving communication efficiency.

The first aspect discloses a communication method, receiving configuration information including RRC setup request configuration information from an access network device, generating an RRC setup request according to the RRC setup request configuration information, and sending an RRC setup request to the access network device. Wherein, the RRC setup request carries a first identifier, the RRC setup request also carries at least one of a second identifier or non-access stratum (non-access stratum, NAS) signaling, the first identifier is the identifier of the terminal device, and the second identifier It is the identification of the core network equipment. Since the RRC establishment request not only carries the identity of the terminal device, but also the identity of the core network device and/or NAS signaling, the number of interactions between the terminal device and the access network device can be reduced, so as to reduce the time required to establish an RRC connection , Which can improve communication efficiency.

In an embodiment, the configuration information broadcasted by the system of the access network device may be received, and the random access response (RAR) message including the configuration information may also be received from the access network device. Through this configuration information, the access network device can control when the terminal device uses the improved RRC establishment request, so as to control the terminal device to perform fast access when the access network device needs the terminal device to quickly access and has sufficient resources. In addition, the sending mode of the system broadcast allows the terminal device to know the size or number of RRC connection establishment messages that can be sent before generating the RRC establishment request, so that the terminal can generate the RRC establishment request in advance.

In an embodiment, the RRC setup request configuration information may indicate the number of time units, and N RRC setup request messages may be determined according to the RRC setup request configuration information. Each RRC setup request message of the N RRC setup request messages carries a first identifier , At least one of the second identifier or NAS signaling, N is an integer greater than or equal to 2, and N RRC setup request messages are carried on M time units; one RRC setup request can also be determined according to the RRC setup request configuration information Message, this RRC establishment request message is carried on M time units. M is an integer greater than or equal to 2 and less than or equal to the number of time units. It can be seen that the terminal device can generate and carry an RRC establishment request carrying multiple pieces of information according to the number of time units indicated by the configuration information. By configuring the number of time units, the access network device can allocate more resources to the terminal device to transmit the RRC establishment request, so that the RRC establishment request can carry more information.

In one embodiment, the RRC setup request configuration information is used to indicate the number of RRC setup request messages, and N RRC setup request messages can be determined according to the RRC setup request configuration information. Each RRC setup request message in the N RRC setup request messages carries At least one of the first identifier, the second identifier, or NAS signaling, and N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages. It can be seen that the terminal device can generate and carry an RRC establishment request carrying multiple pieces of information according to the number of RRC establishment request messages indicated by the configuration information.

In an embodiment, the RRC setup request configuration information is used to indicate the amount of information carried by the RRC setup request message. An RRC setup request message can be determined according to the RRC setup request configuration information. The amount of information carried by the RRC setup request message is The size is less than or equal to the amount of information. N RRC setup request messages can also be determined according to the RRC setup request configuration information. Each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than Or an integer equal to 2, and the size of the information volume carried by the N RRC setup request messages is less than or equal to the size of the information volume. It can be seen that the terminal device can generate and carry an RRC establishment request carrying multiple pieces of information according to the amount of information indicated by the configuration information.

In an embodiment, the configuration information may further include signal radio bearer (signal radio bearer, SRB) 1 establishment information, and may receive a conflict resolution message from an access network device, and establish SRB1 according to the SRB1 establishment information. Since the configuration information includes SRB1 establishment information, after determining that the conflict resolution is successful, SRB1 can be established according to the SRB1 establishment information, so that the terminal device and the access network device can transmit information through the SRB1. In this way, the access network device does not need to send signaling to the terminal device for establishing SRB1 again, which can reduce the time delay for the terminal device to establish SRB1.

In an embodiment, a retransmission instruction carrying the third identifier from the access network device may be received, and the information corresponding to the third identifier may be retransmitted to the access network device. It can be seen that in the case that all or part of the RRC establishment request fails to be transmitted, the terminal device can resend the failed transmission part to the access network device according to the instruction of the access network device, so as not to affect the establishment of the RRC connection.

In an embodiment, the third identifier may be the number of the RRC establishment request message that needs to be retransmitted, or the number of the time unit corresponding to the information that needs to be retransmitted. In the case where the RRC setup request includes multiple RRC setup request messages, or the RRC setup request is carried in multiple time units, the number of the RRC setup request message or the number of the time unit that failed to be transmitted can be directly used to identify the information to be retransmitted.

In an embodiment, a data packet including a conflict resolution message and a retransmission instruction may be received from the access network device. It can be seen that the conflict resolution message and the retransmission instruction are received by the terminal device as a data packet.

The second aspect discloses a communication method, sending configuration information including RRC establishment request configuration information to a terminal device, and receiving an RRC establishment request from the terminal device. The RRC establishment request configuration information is used to configure an RRC establishment request, and the RRC establishment request carries the first Identification, the RRC setup request also carries at least one of a second identification or NAS signaling, the first identification is the identification of the terminal device, and the second identification is the identification of the core network device. Since the RRC establishment request not only carries the identity of the terminal device, but also the identity of the core network device and/or NAS signaling, the number of interactions between the terminal device and the access network device can be reduced, so as to reduce the time required to establish an RRC connection , Which can improve communication efficiency.

In an embodiment, the configuration information may be sent to the terminal device in a system broadcast manner, and the RAR message including the configuration information may also be sent to the terminal device. Through this configuration information, the access network device can control when the terminal device uses the improved RRC establishment request, so as to control the terminal device to perform fast access when the access network device needs the terminal device to quickly access and has sufficient resources. In addition, the sending mode of the system broadcast allows the terminal device to know the size or number of RRC connection establishment messages that can be sent before generating the RRC establishment request, so that the terminal can generate the RRC establishment request in advance.

In an embodiment, the RRC setup request configuration information is used to indicate the number of time units, and N RRC setup request messages or one RRC setup request message from the terminal device can be received through M time units. Among the N RRC setup request messages Each RRC establishment request message carries at least one of a first identifier, a second identifier, or NAS signaling, M is an integer greater than or equal to 2 and less than or equal to the number of time units, and N is an integer greater than or equal to 2. It can be seen that the access network device can receive the RRC establishment request carrying multiple pieces of information sent by the terminal device according to the number of time units indicated by the configuration information. By configuring the number of time units, the access network device can allocate more resources to the terminal device to transmit the RRC establishment request, so that the RRC establishment request can carry more information.

In one embodiment, the RRC setup request configuration information is used to indicate the number of RRC setup request messages, and can receive N RRC setup request messages from the terminal device. In the N RRC setup request messages, each RRC setup request message carries the first At least one of the identifier, the second identifier, or NAS signaling, and N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages. It can be seen that the access network device can receive the RRC establishment request carrying multiple pieces of information sent by the terminal device according to the number of RRC establishment request messages indicated by the configuration information.

In an embodiment, the RRC setup request configuration information is used to indicate the amount of information carried by the RRC setup request message, and an RRC setup request message can be received from the terminal device. The size of the information carried by the RRC setup request message is less than Or equal to the amount of information; N RRC setup request messages from terminal equipment can also be received, and each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier, or NAS signaling Item, N is an integer greater than or equal to 2, and the amount of information carried by N RRC setup request messages is less than or equal to the amount of information. It can be seen that the access network device can receive the RRC establishment request carrying multiple pieces of information sent by the terminal device according to the amount of information indicated by the configuration information.

In an embodiment, the configuration information may further include SRB1 establishment information, and a conflict resolution message may be sent to the terminal device. The conflict resolution message instructs the terminal device to establish SRB1 according to the SRB1 establishment information. Since the configuration information includes SRB1 establishment information, after determining that the conflict resolution is successful, the terminal device can establish SRB1 according to the SRB1 establishment information, so that the terminal device and the access network device can transmit information through SRB1. In this way, the access network device does not need to send signaling to the terminal device for establishing SRB1 again, which can reduce the time delay for the terminal device to establish SRB1.

In an embodiment, a retransmission instruction carrying the third identifier may be sent to the terminal device, and information corresponding to the third identifier from the terminal device may be received. It can be seen that in the case that all or part of the RRC establishment request fails to be transmitted, the access network device can instruct the terminal device to resend the failed transmission part to the access network device so as not to affect the establishment of the RRC connection.

In an embodiment, a data packet including a conflict resolution message and a retransmission instruction may be sent to the terminal device. It can be seen that the conflict resolution message and the retransmission instruction are sent to the terminal device by the access network device as a data packet.

In a third aspect, a communication method is disclosed, which can receive a RAR message carrying uplink authorization information from an access network device, send a first message to the access network device through a resource corresponding to the uplink authorization information, and start at the same time as the first message is sent The conflict resolution timer determines that the conflict resolution fails when the first condition is met before the conflict resolution timer expires. The first condition is that downlink control information (downlink control information, DCI) including uplink scheduling is received from the access network device, and the uplink scheduling is not scheduling for retransmission of the first message. Since the terminal device can determine whether the information received before the conflict resolution timer expires is the information used to retransmit the information sent to the access network device last time, it can avoid the terminal device blindly retransmitting the information, thereby avoiding affecting other information Transmission. In addition, since the conflict resolution failure can be determined before the conflict resolution timer expires, without waiting until the conflict resolution timer expires, processing efficiency can be improved.

In one embodiment, it may be that the DCI including uplink scheduling is received from the access network device, and when the transmission block value corresponding to the uplink scheduling is not equal to the initial transmission block length of the first message, it is determined that the uplink scheduling is not used for Scheduling to retransmit the first message; it can also be the number of the hybrid automatic repeat request (HARQ) process and the first message received from the access network device including the uplink scheduling DCI, and the number of the hybrid automatic repeat request (HARQ) process included in the uplink scheduling When the number of the HARQ process used in transmission is different, it is determined that the uplink scheduling is not the scheduling used to retransmit the first message; it can also be the indication information carried in the DCI that receives the DCI including the uplink scheduling from the access network device In the case of indicating that the uplink scheduling is not the scheduling for the message 3, it is determined that the uplink scheduling is not the scheduling for retransmitting the first message.

In one embodiment, it may be determined that the conflict resolution is successful when the second condition is met before the conflict resolution timer expires. The second condition is that a conflict resolution message from the access network device is received, and there is partial information in the first message that matches the conflict resolution information included in the conflict resolution message.

A fourth aspect discloses a communication device that includes a unit for executing the communication method disclosed in the first aspect or any one of the embodiments of the first aspect, or includes a unit for executing the second aspect or the second aspect The unit of the communication method disclosed in any embodiment may include a unit for executing the communication method disclosed in the third aspect or any of the embodiments of the third aspect.

A fifth aspect discloses a communication device, which may be a terminal device or a chip in the terminal device. The communication device may include a processor, the processor and a memory are coupled to each other, the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions stored in the memory, so that the communication device executes the first aspect or any of the first aspects. A communication method disclosed in an embodiment.

The sixth aspect discloses a communication device, which may be an access network device or a chip in the access network device. The communication device may include a processor, the processor and the memory are coupled to each other, the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions stored in the memory, so that the communication device executes the second aspect or any of the second aspects. A communication method disclosed in an embodiment.

A seventh aspect discloses a communication device, which may be a terminal device or a chip in the terminal device. The communication device may include a processor, the processor and the memory are coupled to each other, the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions stored in the memory, so that the communication device executes any of the third aspect or the third aspect. A unit of the communication method disclosed in an embodiment.

An eighth aspect discloses a readable storage medium with a program stored on the readable storage medium. When the program runs, the communication method as disclosed in the first aspect or any one of the first aspect is implemented, or The communication method disclosed in the second aspect or any embodiment of the second aspect, or the communication method disclosed in the third aspect or any embodiment of the third aspect is implemented.

A ninth aspect discloses a communication system including the communication device of the fifth aspect and the communication device of the sixth aspect.

Description of the drawings

Figure 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a process of establishing an RRC connection disclosed in an embodiment of the present invention;

3 is a schematic flowchart of a communication method disclosed in an embodiment of the present invention;

4 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 5 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a communication device disclosed in an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention;

8 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention;

Fig. 9 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention.

detailed description

The embodiment of the invention discloses a communication method and equipment for improving communication efficiency. Detailed descriptions are given below.

In order to better understand a communication method and device disclosed in the embodiment of the present invention, the following describes the network architecture used in the embodiment of the present invention. Please refer to FIG. 1, which is a schematic diagram of a network architecture disclosed in an embodiment of the present invention. As shown in Figure 1, the network architecture may include one or more terminal devices 1 (one is shown in Figure 1), one or more access network devices 2 (one is shown in Figure 1), and one or more A core network device 3. In the satellite communication architecture, the access network equipment 2 may include a base station and a satellite. The base stations may be all set on the satellite, or only the wireless transceiver unit may be set on the satellite.

The communication between the terminal device 1 and the access network device 2 includes uplink (that is, the terminal device 1 to the access network device 2) communication and the downlink (that is, the access network device 2 to the terminal device 1) communication. In the uplink communication, the terminal device 1 is used to send the uplink physical channel and the uplink signal to the access network device 2. The access network device 2 is used to receive the uplink physical channel and the uplink signal from the terminal device 1.

The uplink physical channel may include random access channel (RACH), physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), etc.

The uplink signal may include a sounding reference signal (SRS), a PUCCH demodulation reference signal (DMRS), a PUSCH DMRS, an uplink phase noise tracking signal (phase noise tracking reference signal, PTRS), etc.

In downlink communication, the access network device 2 is used to send downlink physical channels and downlink signals to the terminal device 1. The terminal device 1 is used to receive downlink physical channels and downlink signals from the access network device 2.

The downlink physical channel may include a physical broadcast channel (physical broadcast channel, PBCH), a physical downlink control channel (physical downlink control channel, PDCCH), a physical downlink shared channel (physical downlink shared channel, PDSCH), and so on.

Downlink signals can include primary synchronization signal (PSS), secondary synchronization signal (SSS), PDCCH DMRS, PDSCH DMRS, downlink PTRS, channel status information reference signal (channel status information reference signal, CSI-RS) ), cell reference signal (CRS), time domain or frequency domain tracking reference signal (tracking reference signal, TRS), positioning reference signal (positioning reference signal, PRS), etc.

The terminal device 1 may be a user equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a terminal, a wireless communication device, a UE agent Or UE device, etc. The access terminal can be a cell phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in the future 5G network or terminals in the future evolved public land mobile network (PLMN) network Wait.

The access network device 2 is a device that can communicate with the terminal device 1, and may be a base station, a relay station, or an access point. The base station can be a base transceiver station (BTS) in the global aystem for mobile communication (GSM) or code division multiple access (CDMA) network, or it can be a broadband code division The node base station (NB) in wideband code division multiple access (WCDMA) can also be an evolved NB (eNB or eNodeB) in long term evolution (LTE), and it can also be It is the wireless controller in the cloud radio access network (CRAN) scenario, it can also be the base station equipment in the future 5G network or the access network equipment in the future evolved PLMN network, or it can be a wearable device Or on-board equipment.

The core network device 3 may be a core network (core network, CN) device corresponding to different devices in different systems. In 3G, it can correspond to a service support node (serving GPRS support node, SGSN) of general packet radio service technology (general packet radio service, GPRS) and/or a gateway support node (gateway GPRS support node, GGSN) of GPRS. In 4G, it can correspond to a mobility management entity (MME) and/or a serving gateway (S-GW). In 5G, it can correspond to access and mobility management function (AMF), session management function (session management function, SMF), or user plane function (UPF).

In order to better understand a communication method and device disclosed in the embodiments of the present invention, the following describes the application scenarios of the embodiments of the present invention. RRC is a protocol entity that manages radio resources. The terminal equipment and the access network equipment implement the establishment, modification, and release of a radio bearer (RB) through the interaction of RRC signaling. RB can be understood as a logical channel, including signal radio bearer SRB and data radio bearer (DRB). SRB is a signaling channel, and DRB is a data channel. SRB includes SRB0, SRB1 and SRB2. SRB0 is used to transmit RRC messages using a common control channel (CCCH). SRB1 is used to transmit RRC messages or NAS messages using a downlink control channel (DCCH). SRB2 is used to transmit NAS messages using DCCH. The standard stipulates that there is no need to establish SRB0, and the terminal device in the RRC idle state can obtain the configuration and resources of SRB0 through the agreement of the agreement, and can directly use it if necessary. The process of service initiation in the system is to establish SRB1 by transmitting signaling on SRB0. After SRB1 is established, the terminal device enters the RRC connected state, and then transmits signaling through SRB1 to establish SRB2 to transmit NAS signaling, and to transmit signaling through SRB1 Establish DRB to transmit user data. During the service process, SRB1 is used for management. When the service ends, the signaling transmitted on SRB1 can release all DRBs and SRBs, so that the terminal device enters the RRC idle state. The RRC Setup (RRCSetup) message used to establish SRB1 is transmitted through SRB0. The RRC Reconfiguration (RRCReconfiguration) message used to modify the RRC connection is transmitted through SRB1 to establish SRB2 and DRB.

Please refer to FIG. 2, which is a schematic diagram of an RRC connection establishment process disclosed in an embodiment of the present invention. As shown in FIG. 2, when the terminal device needs to send information, the terminal device can send a message (message) 1 carrying the identification of the terminal device to the access network device through SRB0, that is, msg1, that is, a preamble message. After the access network device receives msg1 from the terminal device, it configures the first resource for the terminal device, and then sends to the terminal device a message 2 including the first resource and a random access preamble (RAP)-ID, that is, msg2 , Which is the RAR message. After the terminal device receives msg2, it determines whether the RAP-ID matches msg1. If it determines that the RAP-ID matches msg1, it indicates that the msg2 is the msg2 sent to the terminal device, and then uses the first resource to send it to the access network. The device sends a message 3 carrying the identity of the terminal device, namely msg3, which is an RRC establishment request. After receiving the msg3 from the terminal device, the access network device sends a message 4, namely msg4, that is, an RRC establishment message, to the terminal device, and sends a conflict resolution message to the terminal device while sending the message 4 to the terminal device. After receiving the msg4 and the conflict resolution message from the access network device, the terminal device can send a confirmation message or a scheduling request (scheduling request, SR) to the access network device when it determines that the conflict resolution is successful and the RRC establishment message is successfully received. . After receiving the confirmation message or SR from the terminal device, the access network device allocates the second resource to the terminal device, and then sends an authorization message including the second resource to the terminal device. After receiving the authorization message from the access network device, the terminal device establishes SRB1 according to the SRB1 establishment information included in the RRC setup message. The terminal device enters the connected state from the idle state, and then the terminal device sends the carrier core to the access network device through the second resource The identification of the network equipment and the RRC establishment completion message of the NAS signaling. After receiving the RRC establishment complete message from the terminal device, the access network device sends an initialization terminal device message (INITIAL UE MESSAGE) including NAS signaling to the core network device identified by the core network device identifier. After the core network device receives the initialization terminal device (INITIAL UE MESSAGE) message from the access network device, it sends an initialization context setup request (INITIAL CONTEXT SETUP REQUEST) to the access network device. After the access network device receives the initialization context establishment request from the core network device, it sends a security mode command (SecurityModeCommand) and an RRC reconfiguration (RRCReconfiguration) message to the terminal device. After receiving the security mode instruction and RRC reconfiguration message from the access network device, the terminal device performs security activation according to the security mode instruction, establishes SRB2 and DRB according to the RRC reconfiguration message, and then sends the security mode complete (SecurityModeComplete) to the access network device. ) Message and RRC Reconfiguration Complete (RRCReconfigurationComplete) message. After the access network device receives the security mode complete message and the RRC reconfiguration complete message from the terminal device, it sends an initialization context setup response (INITIAL CONTEXT SETUP RESPOND) to the core network device, indicating that the RRC establishment is complete. The identification of the terminal device may be an international mobile subscriber identification number (IMSI), or a serving-temporary mobile subscriber identity (S-TMSI).

Based on the network architecture shown in FIG. 1, please refer to FIG. 3. FIG. 3 is a schematic flowchart of a communication method disclosed in an embodiment of the present invention. As shown in Figure 3, the communication method may include the following steps.

301. The access network device sends configuration information to the terminal device.

The access network device may send configuration information including the RRC establishment request configuration information to the terminal device, may send the configuration information to the terminal device in a broadcast manner, or may send the RAR message including the configuration information and the RAP-ID to the terminal device. The configuration information may also include SRB1 establishment information, and the configuration information may also include the first resource configured for the terminal device. The RRC establishment request configuration information is used to configure the RRC establishment request, that is, the RRC establishment request can be configured according to the RRC establishment request configuration information, and the configuration method may be generation.

Optionally, in the case that the terminal device needs to send information, the terminal device can send an authorization request to the access network device through SRB0. The authorization request can be implemented through a preamble message, or through other messages or other means. This embodiment The examples are not limited here. After the access network device receives the authorization request from the terminal device, it can send the configuration information to the terminal through the RAR message containing the RAP-ID.

302. The terminal device generates an RRC establishment request according to the RRC establishment request configuration information.

The terminal device can receive the configuration information from the terminal device, can receive the configuration information through the RAR message, or can receive the configuration information through the system broadcast.

Specifically, when the terminal device receives the RAR message from the access network device, it can first determine whether the RAP-ID included in the RAR message matches the authorization request. In the case of determining that the RAP-ID matches the authorization request, It is determined that the received RAR message is the RAR message sent to the terminal device, and then the RRC establishment request is generated according to the RRC establishment request configuration information included in the RAR message, that is, the RRC establishment request is configured according to the RRC establishment request configuration information. When the terminal device receives the configuration information from the system information broadcast, it generates an RRC establishment request according to the RRC establishment request configuration information, that is, configures the RRC establishment request according to the RRC establishment request configuration information.

The RRC establishment request may carry a first identifier, and the RRC establishment request may also carry at least one of a second identifier or NAS signaling. The first identifier is the identifier of the terminal device, and the second identifier is the identifier of the core network device. The first identifier may be a temporary mobile subscriber identity (TMSI), or may be another identifier that can uniquely identify the terminal device. The second identifier is the identifier of the core network device registered by the terminal device. The RRC establishment request may also carry public land mobile network (PLMN), and the RRC establishment request may also carry buffer status report (buffer status report, BSR) information. The RRC establishment request may include one RRC establishment request message or N RRC establishment request messages, where N is an integer greater than 1.

The RRC establishment request configuration information may indicate the number of time units, or may explicitly indicate the number of time units. For example, the RRC establishment request configuration information may be the number of time units. The number of time units can also be indicated implicitly. For example, the RRC establishment request configuration information can be used to indicate the number of time units, can also be an index of the number of time units, or can be an index of multiple time units. The number of time units here can be the maximum number of time units allowed to be used by the terminal device, or it can be the number of time units allowed to be used by the terminal device. The N RRC setup request messages can be determined according to the RRC setup request configuration information. Each RRC setup request message in the N RRC setup request messages can carry at least one of the first identifier, the second identifier, or NAS signaling, and N RRCs The establishment request message is carried on M time units. The amount of information carried by each RRC establishment request message in the N RRC establishment request messages can be greater than, equal to, or smaller than the maximum amount of information that can be carried in one time unit. It can be one RRC establishment request message carrying one piece of information, or it can be multiple. Each RRC establishment request message carries one piece of information. It is also possible to determine an RRC establishment request message according to the RRC establishment request configuration information, and this RRC establishment request message is carried on M time units. N is an integer greater than or equal to 2, and M is an integer greater than or equal to 2 and less than or equal to the number of time units.

Specifically, for example, the RRC setup request configuration information may indicate that the number of time units is 3, the terminal device may determine three RRC setup request messages, the first RRC setup request message may carry the first identifier, and the second RRC setup request message The second identifier may be carried, the third RRC establishment request message may carry NAS signaling, and the terminal device may map the three RRC establishment request messages to three time units for transmission. For example, the RRC setup request configuration information can indicate that the number of time units is 3, and the terminal determines one RRC setup request message. This RRC setup request message can carry the first identifier, the second identifier, and NAS signaling, and the terminal device can send this RRC The establishment request message is mapped to 3 time units for transmission. The time unit may be a slot, a symbol, a subframe, a frame, or other time unit, which is not limited in this embodiment.

The RRC establishment request configuration information may indicate the number of RRC establishment request messages, and may explicitly indicate the number of RRC establishment request messages. For example, the RRC establishment request configuration information is the number of RRC establishment request messages. The number of RRC establishment request messages can also be indicated implicitly. For example, the RRC establishment request configuration information can indicate the number of RRC establishment request messages, and can also establish an index for the number of RRC request messages. The number of RRC establishment request messages here may be the maximum number of RRC establishment request messages that are allowed to be established by the terminal device, or may be the number of RRC establishment request messages that are allowed to be established by the terminal device. N RRC setup request messages can be determined according to the RRC setup request configuration information. Each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than or An integer equal to 2 and less than or equal to the number of RRC setup request messages. Specifically, for example, the RRC setup request configuration information can indicate that the number of RRC setup request messages is 3, the terminal device can determine three RRC setup request messages, the first RRC setup request message can carry the first identifier, and the second RRC setup request message The request message may carry the second identifier, and the third RRC establishment request message may carry NAS signaling.

The RRC establishment request configuration information can indicate the amount of information carried by the RRC establishment request message, or can explicitly indicate the amount of information carried by the RRC establishment request message. For example, the RRC establishment request configuration information is carried by the RRC establishment request message. The specific value of the amount of information, such as 48 bits or 96 bits. It can also implicitly indicate the amount of information carried by the RRC setup request message. For example, the RRC setup request configuration information can indicate a long RRC setup request message or a short RRC setup request message, or it can be the amount of information carried by the RRC setup request message. Index of size. The size of the information carried by the RRC establishment request message here may be the maximum size of the RRC establishment request message allowed to be established by the terminal device, or may be the size of the RRC establishment request message allowed to be established by the terminal device. An RRC setup request message can be determined according to the RRC setup request configuration information. The amount of information carried by this RRC setup request message is less than or equal to the amount of information, and the size of the information is the RRC setup request message indicated by the above RRC setup request configuration information. The amount of information carried. N RRC setup request messages can also be determined according to the RRC setup request configuration information. Each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than Or an integer equal to 2, and the size of the information volume carried by the N RRC setup request messages is less than or equal to the size of the information volume. Specifically, for example, the RRC setup request configuration information can instruct the terminal device to use a long RRC setup request message, then the terminal device can determine three RRC setup request messages, the first RRC setup request message can carry the first identifier, and the second RRC setup request message The setup message may carry the second identifier, and the third RRC setup message may carry NAS signaling. For example, the RRC establishment request configuration information may instruct the terminal device to use a short RRC establishment request message, and the terminal device may determine one RRC establishment request message. This RRC establishment request message may include the first identifier, the second identifier, and NAS signaling.

303. The terminal device sends an RRC establishment request to the access network device.

After generating the RRC establishment request according to the RRC establishment request configuration information, the terminal device sends the RRC establishment request to the access network device, and may send the RRC establishment request to the access network device through the first resource. The access network device may receive the RRC establishment request according to the RRC establishment request configuration information included in the configuration information. In the case that the RRC setup request configuration information is used to indicate the number of time units, N RRC setup request messages or one RRC setup request message from the terminal device can be received through M time units, and each of the N RRC setup request messages The RRC establishment request message carries at least one of the first identifier, the second identifier, or NAS signaling, M is an integer greater than or equal to 2 and less than or equal to the number of time units, and N is an integer greater than or equal to 2.

In the case where the RRC setup request configuration information is used to indicate the number of RRC setup request messages, N RRC setup request messages from the terminal device can be received, and each of the N RRC setup request messages carries the first identifier, At least one of the second identifier or NAS signaling, N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages.

In the case that the RRC setup request configuration information is used to indicate the amount of information carried by the RRC setup request message, an RRC setup request message can be received from the terminal device. The size of the information carried by the RRC setup request message is less than or equal to The amount of information. It is also possible to receive N RRC setup request messages from the terminal device. Each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than or equal to An integer of 2, the size of the information volume carried by the N RRC setup request messages is less than or equal to the size of the information volume.

Based on the network architecture shown in FIG. 1, please refer to FIG. 4. FIG. 4 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in Figure 4, the communication method may include the following steps.

401. The access network device sends configuration information to the terminal device.

Among them, step 401 is the same as step 301. For detailed description, please refer to step 301, which will not be repeated here.

402. The terminal device generates an RRC establishment request according to the RRC establishment request configuration information.

Wherein, step 402 is the same as step 302. For detailed description, please refer to step 302, which will not be repeated here.

403. The terminal device sends an RRC establishment request to the access network device.

Among them, step 403 is the same as step 303. For detailed description, please refer to step 303, which will not be repeated here.

404. The access network device sends a conflict resolution message to the terminal device.

After receiving the RRC establishment request from the terminal device, the access network device may send a conflict resolution message carrying the first identifier to the device device to determine that it has received the RRC establishment request from the terminal device. In the case that the RRC establishment request is successfully received, there is no need to send a retransmission instruction to the terminal device. In the case that the RRC establishment request fails to be received, it is also necessary to send a retransmission instruction carrying the third identifier to the terminal device. At this time, the conflict resolution message and the retransmission instruction can be generated to generate a data packet and sent to the terminal device. Specifically, the data packet may be a media access control address (Media Access Control Address, MAC) protocol data unit (Protocol Data Unit, PDU), and the conflict resolution message and the retransmission instruction may be different parts of the MAC PDU. Optionally, the third identifier may be the number of the RRC setup request message that needs to be retransmitted, or the number of the time unit corresponding to the information that needs to be retransmitted. Specifically, for example, the terminal device sends three RRC establishment request messages, and the access network device receives the first RRC establishment request message and the third RRC establishment request message, but does not receive the second RRC establishment request message. The network access device may set the third identifier as the identifier of the second RRC establishment request message. After the terminal device judges that the MAC PDU is a message sent to itself according to the conflict resolution message, it makes a retransmission judgment according to the retransmission indication in the MAC PDU, and judges that it needs to retransmit the second RRC establishment request message.

405. Establish SRB1 according to the SRB1 establishment information.

After the terminal device receives the conflict resolution message from the access network device, it can first determine whether the identifier carried in the conflict resolution message is the same as the terminal device identifier. If the same is determined, the conflict resolution is determined to be successful, and the establishment information is established according to SRB1 SRB1. In the case of different judgments, it is determined that the conflict resolution fails, and step 401 can be executed again.

After receiving the retransmission instruction, the terminal device may retransmit the information corresponding to the third identifier to the access network device in the case of determining that the conflict resolution is successful.

406. The access network device sends NAS signaling to the core network device identified by the second identifier.

After receiving the RRC establishment request from the terminal device, the access network device sends the NAS signaling to the core network device identified by the second identity in the case that the RRC establishment request carries the first identity, the second identity and the NAS signaling.

407. The core network device sends a context establishment request to the access network device.

After receiving the NAS signaling from the access network device, the core network device sends a context establishment request to the access network device. The context establishment request can be implemented through the INITIAL CONTEXT SETUP REQUEST message, or through other messages or other methods.

408. The access network device sends a security mode instruction and an RRC reconfiguration message to the terminal device.

After the access network device receives the context establishment request from the core network device, it can send a security mode instruction and an RRC reconfiguration message to the terminal device.

409. The terminal device sends a security mode complete message and an RRC reconfiguration complete message to the access network device.

410. The access network device sends a context establishment complete message to the core network device.

For detailed descriptions of step 408 to step 410, please refer to the corresponding description of FIG. 2, and details are not repeated here.

In order to better understand a communication method and device disclosed in the embodiments of the present invention, the following describes the application scenarios of the embodiments of the present invention. In the existing network, after the access network device sends the RRC establishment message to the terminal device, it needs to wait for the terminal device to send the SR before sending the authorization of the RRC establishment completion message to the terminal device, and then the terminal device can send the RRC establishment completion message according to the authorization However, considering that the authorized sending of the SR and RRC establishment complete message will increase the delay. Therefore, in order to speed up the transmission of the RRC establishment completion message, after the access network device sends the RRC establishment message to the terminal device, it sends an authorization message for scheduling the RRC establishment completion message to the terminal device. However, when the terminal device does not receive the conflict resolution message and the RRC establishment message sent by the access network device, but receives the authorization message for scheduling the RRC establishment completion message, the terminal device will mistakenly think that the authorization message is used Message to be retransmitted for scheduling message 3.

Based on the network architecture shown in FIG. 1, please refer to FIG. 5. FIG. 5 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in Fig. 5, the communication method may include the following steps.

501. An access network device sends a RAR message carrying uplink authorization information to a terminal device.

In the case that the terminal device needs to send information, the terminal device can send an authorization request to the access network device. The authorization request can be implemented through a preamble message, or through other messages or other methods, which is not limited in this embodiment.

After the access network device receives the authorization request from the terminal device, it can send the RAR message carrying the uplink authorization information to the terminal device.

502. The terminal device sends a first message to the access network device through the resource corresponding to the uplink authorization information.

After the terminal device receives the configuration information from the terminal device, it determines whether the RAP-ID included in the RAR message matches the authorization request. In the case of determining that the RAP-ID matches the authorization request, it determines that the received RAR message is sent to The RAR message of the terminal device then sends the first message to the access network device through the resource corresponding to the uplink authorization information. The first message may be an RRC establishment request or other messages, which is not limited in this embodiment.

After receiving the first message from the terminal device, the access network device may send a message for responding to the first message and a conflict resolution message to the terminal device. In the case that the first message needs to be retransmitted, a retransmission instruction needs to be sent to the terminal device.

503. The terminal device starts a conflict resolution timer while sending the first message.

504. The terminal device determines that the conflict resolution fails when the first condition is met before the conflict resolution timer expires.

The terminal device starts the conflict resolution timer while sending the first message, and determines that the conflict resolution fails if the first condition is met before the conflict resolution timer expires. The first condition is that the DCI including the uplink scheduling is received from the access network device, and the uplink scheduling is not the scheduling used to retransmit the first message. Through the judgment of the first condition, the terminal can avoid erroneous retransmission of the first message, and the erroneous retransmission of the first message will cause interference to messages transmitted by other terminals, and thus can reduce interference to other terminal devices.

It may be that the DCI including uplink scheduling is received from the access network device, and when the transmission block value corresponding to the uplink scheduling is not equal to the initial transmission block length of the first message, it is determined that the uplink scheduling is not used to retransmit the first message Scheduling. It may also be that the DCI including uplink scheduling is received from the access network device, and when the number of the HARQ process included in the uplink scheduling is different from the number of the HARQ process used in the transmission of the first message, it is determined that the uplink scheduling is not used for repetition. The dispatch of the first message. It may also be that the DCI including uplink scheduling is received from the access network device, and when the indication information carried by the DCI indicates that the uplink scheduling is not scheduling for message 3, it is determined that the uplink scheduling is not scheduling for retransmission of the first message.

In the case where the conflict resolution timer expires, it is determined that the conflict resolution fails. The terminal device can perform step 501 again.

505. The terminal device determines that the conflict resolution is successful when the second condition is met before the conflict resolution timer expires.

In the case that the second condition is met before the conflict resolution timer expires, it is determined that the conflict resolution is successful, and then the conflict resolution timer is closed. The second condition is that a conflict resolution message from the access network device is received, and there is partial information in the first message that matches the conflict resolution information included in the conflict resolution message.

Based on the network architecture shown in FIG. 1 and the same concept of the communication method in the foregoing embodiment, please refer to FIG. 6. FIG. 6 is a schematic structural diagram of a communication device disclosed in an embodiment of the present invention. Among them, the communication device can be applied to the communication methods shown in FIG. 3 and FIG. 4 above. As shown in Figure 6, the communication device may include:

The receiving unit 601 is configured to receive configuration information from an access network device, where the configuration information includes RRC establishment request configuration information;

The generating unit 602 is configured to generate an RRC setup request according to the RRC setup request configuration information received by the receiving unit 601. The RRC setup request carries a first identifier, and the RRC setup request also carries at least one of a second identifier or NAS signaling. The identifier is the identifier of the terminal device, and the second identifier is the identifier of the core network device;

The sending unit 603 is configured to send the RRC establishment request generated by the generating unit 602 to the access network device.

As a possible implementation manner, the receiving unit 601 is specifically configured to:

Receive configuration information broadcasted from the access network equipment; or

Receive a RAR message from an access network device, where the RAR message includes configuration information.

As a possible implementation manner, the RRC establishment request configuration information is used to indicate the number of time units;

The generating unit 602 is specifically used for:

Determine N RRC setup request messages according to the RRC setup request configuration information. Each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than or equal to An integer of 2, N RRC setup request messages are carried on M time units; or

Determine one RRC setup request message according to the RRC setup request configuration information, and one RRC setup request message is carried on M time units;

M is an integer greater than or equal to 2 and less than or equal to the number of time units.

As a possible implementation manner, the RRC establishment request configuration information is used to indicate the number of RRC establishment request messages;

The generating unit 602 is specifically configured to determine N RRC establishment request messages according to the RRC establishment request configuration information. Each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling. Item, N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages.

As a possible implementation manner, the RRC setup request configuration information is used to indicate the amount of information carried by the RRC setup request message;

The generating unit 602 is specifically used for:

Determine an RRC establishment request message according to the RRC establishment request configuration information, and the amount of information carried by an RRC establishment request message is less than or equal to the amount of information; or

Determine N RRC setup request messages according to the RRC setup request configuration information. Each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than or equal to An integer of 2, the size of the information volume carried by the N RRC setup request messages is less than or equal to the size of the information volume.

As a possible implementation manner, the configuration information further includes SRB1 establishment information, and the receiving unit 601 is further configured to receive a conflict resolution message from an access network device;

The communication device may also include:

The establishing unit 604 is configured to establish SRB1 according to the SRB1 establishment information received by the receiving unit 601.

As a possible implementation manner, the receiving unit 601 is further configured to receive a retransmission instruction from the access network device, where the retransmission instruction carries a third identifier;

The sending unit 603 is further configured to retransmit the information corresponding to the third identifier received by the receiving unit 601 to the access network device.

As a possible implementation manner, the third identifier is the number of the RRC setup request message that needs to be retransmitted, or the number of the time unit corresponding to the information that needs to be retransmitted.

As a possible implementation manner, the receiving unit 601 receiving the retransmission instruction from the access network device includes:

Receive a data packet from an access network device, the data packet includes a conflict resolution message and a retransmission instruction.

More detailed descriptions of the receiving unit 601, the generating unit 602, the sending unit 603, and the establishing unit 604 can be obtained directly by referring to the relevant description of the terminal device in the method embodiments shown in FIG. 3 and FIG. 4, and will not be repeated here.

Based on the network architecture shown in FIG. 1 and the same concept of the communication method in the foregoing embodiment, please refer to FIG. 7. FIG. 7 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention. Among them, the communication device can be applied to the communication methods shown in FIG. 3 and FIG. 4 above. As shown in FIG. 7, the communication device may include a processing unit 701 and a transceiver unit 702, and the processing unit 701 is configured to:

The control transceiver unit 702 sends configuration information to the terminal device, the configuration information includes the RRC establishment request configuration information, and the RRC establishment request configuration information is used to configure the RRC establishment request;

The control transceiver unit 702 receives an RRC establishment request from a terminal device. The RRC establishment request carries a first identifier. The RRC establishment request also carries at least one of a second identifier or NAS signaling. The first identifier is the identifier of the terminal device, and the second The identifier is the identifier of the core network device.

As a possible implementation manner, the sending and receiving unit 702 sending configuration information to the terminal device includes:

Send the configuration information to the terminal device by broadcasting; or

Send a RAR message to the terminal device, the RAR message includes configuration information.

The transceiver unit 702 receives the RRC establishment request from the terminal device including:

Receive N RRC setup request messages or one RRC setup request message from the terminal device through M time units. Each RRC setup request message in the N RRC setup request messages carries the first identifier, the second identifier, or one of the NAS signaling At least one item, M is an integer greater than or equal to 2 and less than or equal to the number of time units, and N is an integer greater than or equal to 2.

Receive N RRC establishment request messages from the terminal device, each of the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than or equal to 2 and An integer less than or equal to the number of RRC establishment request messages.

Receiving an RRC establishment request message from the terminal device, where the amount of information carried by the one RRC establishment request message is less than or equal to the amount of information; or

Receive N RRC establishment request messages from the terminal device, each of the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than or equal to 2 An integer, the size of the information volume carried by the N RRC setup request messages is less than or equal to the size of the information volume.

As a possible implementation manner, the configuration information further includes SRB1 establishment information, and the processing unit 701 is further configured to:

The control transceiver unit 702 sends a conflict resolution message to the terminal device, and the conflict resolution message instructs the terminal device to establish SRB1 according to the SRB1 establishment information.

As a possible implementation manner, the processing unit 701 is further configured to:

Control the transceiver unit 702 to send a retransmission instruction to the terminal device, and the retransmission instruction carries a third identifier;

The control transceiver unit 702 receives information corresponding to the third identifier from the terminal device.

As a possible implementation manner, the sending and receiving unit 702 sending a retransmission instruction to the terminal device includes:

Send a data packet to the terminal device. The data packet includes a conflict resolution message and a retransmission instruction.

More detailed descriptions of the processing unit 701 and the transceiving unit 702 can be directly obtained by referring directly to the relevant description of the access network device in the method embodiments shown in FIG. 3 and FIG. 4, and will not be repeated here.

Based on the network architecture shown in FIG. 1 and the same concept of the communication method in the foregoing embodiment, please refer to FIG. 8. FIG. 8 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention. Wherein, the communication device can be applied to the communication method shown in FIG. 5 above. As shown in Figure 8, the communication device may include:

The receiving unit 801 is configured to receive a RAR message from an access network device, where the RAR message carries uplink authorization information;

The sending unit 802 is configured to send the first message to the access network device through the resource corresponding to the uplink authorization information received by the receiving unit 801;

The starting unit 803 is configured to start the conflict resolution timer when the sending unit 802 sends the first message;

The determining unit 804 is configured to determine that the conflict resolution fails when the first condition is met before the conflict resolution timer started by the starting unit 803 expires;

The first condition is:

The DCI including the uplink scheduling is received from the access network device, and the uplink scheduling is not the scheduling used to retransmit the first message.

As a possible implementation manner, receiving the DCI including uplink scheduling from the access network device and the uplink scheduling is not used to retransmit the first message includes:

Receiving the DCI including uplink scheduling from the access network device, and determining that the uplink scheduling is not the scheduling used to retransmit the first message in the case that the transmission block value corresponding to the uplink scheduling is not equal to the initial transmission block length of the first message; or

When the DCI including uplink scheduling is received from the access network device, and the number of the HARQ process included in the uplink scheduling is different from the number of the HARQ process used in the transmission of the first message, it is determined that the uplink scheduling is not used to retransmit the first message. Dispatch of messages; or

When the DCI including uplink scheduling is received from the access network device, and the indication information carried in the DCI indicates that the uplink scheduling is not scheduling for the message 3, it is determined that the uplink scheduling is not scheduling for retransmission of the first message.

As a possible implementation manner, the determining unit 804 is further configured to determine that the conflict resolution is successful when the second condition is met before the conflict resolution timer expires;

The second condition is:

The conflict resolution message from the access network device is received, and the first message contains partial information that matches the conflict resolution information included in the conflict resolution message.

More detailed descriptions about the foregoing receiving unit 801, sending unit 802, starting unit 803, and determining unit 804 can be obtained directly by referring to the relevant description of the terminal device in the method embodiment shown in FIG. 5, and will not be repeated here.

Please refer to FIG. 9. FIG. 9 is a schematic structural diagram of a communication device disclosed in an embodiment of the present invention. As shown in FIG. 9, the communication device may include a processor 901, a memory 902, a transceiver 903, and a bus 904. The processor 901 may be a general-purpose central processing unit (CPU), multiple CPUs, microprocessors, application-specific integrated circuits (ASICs), or one or more programs for controlling the execution of the program of the present invention integrated circuit. The memory 902 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this. The memory 902 may exist independently, or may be integrated with the processor 901. The bus 904 is connected to the processor 901. The bus 904 of the memory 902 may include a path for transferring information between the aforementioned components. The transceiver 903 may be a transceiver antenna, or other transceiver devices, such as a radio frequency transceiver, or a signal transceiver interface. among them:

In an embodiment, the communication device may be a terminal device or a chip in the terminal device, where:

The transceiver 903 is configured to receive configuration information from an access network device, where the configuration information includes RRC establishment request configuration information;

A group of program codes are stored in the memory 902, and the processor 901 is configured to call the program codes stored in the memory 902 to perform the following operations:

The RRC setup request is generated according to the RRC setup request configuration information. The RRC setup request carries a first identifier, and the RRC setup request also carries at least one of a second identifier or NAS signaling. The first identifier is the identifier of the terminal device, and the second identifier is Identification of core network equipment;

The transceiver 903 is also used to send an RRC establishment request to the access network device.

As a possible implementation manner, the configuration information received by the transceiver 903 from the access network device includes:

The processor 901 generating an RRC establishment request according to the RRC establishment request configuration information includes:

Determine N RRC setup request messages according to the RRC setup request configuration information. Each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is greater than or equal to 2 and an integer less than or equal to the number of RRC establishment request messages.

As a possible implementation manner, the configuration information further includes SRB1 establishment information, and the transceiver 903 is also used to receive conflict resolution messages from the access network device;

The processor 901 is further configured to call the program code stored in the memory 902 to perform the following operations:

SRB1 is established according to the SRB1 establishment information.

As a possible implementation manner, the transceiver 903 is also used for:

Receiving a retransmission instruction from an access network device, where the retransmission instruction carries a third identifier;

Retransmit the information corresponding to the third identifier to the access network device.

As a possible implementation manner, the transceiver 903 receiving the retransmission instruction from the access network device includes:

Among them, step 302, step 402, and step 405 can be executed by the processor 901 and the memory 902 in the terminal. In step 301 and step 401, the terminal device side receives configuration information, step 303, step 403, and step 404. The step of receiving the conflict resolution information on the side, the step of receiving the security mode instruction and the RRC reconfiguration message on the terminal device side in step 408, and the step 409 may be performed by the transceiver 903.

The generating unit 602 and the establishing unit 604 can be implemented by the processor 901 and the memory 902, and the receiving unit 601 and the sending unit 603 can be implemented by the transceiver 903.

The above-mentioned terminal device or the chip in the terminal device may also be used to execute various methods executed by the terminal device in the method embodiments of FIG. 3 to FIG. 4, and details are not described again.

In another embodiment, the communication device may be an access network device or a chip in the access network device, where:

A set of program codes are stored in the memory 902, and the processor 901 is configured to call the program codes stored in the memory 902 to control the transceiver 903 to perform the following operations:

Sending configuration information to the terminal device, the configuration information includes the RRC establishment request configuration information, and the RRC establishment request configuration information is used to configure the RRC establishment request;

Receive an RRC setup request from a terminal device, the RRC setup request carries a first identifier, the RRC setup request also carries at least one of a second identifier or NAS signaling, the first identifier is the identifier of the terminal device, and the second identifier is the core network The identification of the device.

As a possible implementation manner, the transceiver 903 sending configuration information to the terminal device includes:

Send the configuration information to the terminal device by broadcasting; or

The transceiver 903 receiving the RRC establishment request from the terminal device includes:

Receiving an RRC setup request message from the terminal device, where the size of the information carried by the one RRC setup request message is less than or equal to the size of the information; or

As a possible implementation manner, the configuration information further includes SRB1 establishment information, and the processor 901 is further configured to call the program code stored in the memory 902 to control the transceiver 903 to perform the following operations:

The conflict resolution message is sent to the terminal device, and the conflict resolution message instructs the terminal device to establish SRB1 according to the SRB1 establishment information.

As a possible implementation manner, the processor 901 is further configured to call the program code stored in the memory 902 to control the transceiver 903 to perform the following operations:

Sending a retransmission instruction to the terminal device, where the retransmission instruction carries a third identifier;

Receive the information corresponding to the third identifier from the terminal device.

As a possible implementation manner, the transceiver 903 sending a retransmission instruction to the terminal device includes:

Among them, in step 301, step 303, and step 403, the access network device side receives the RRC establishment request step, step 401, step 404, step 406, step 407 the access network device side receives the context establishment request step, step 408, In step 409, the step of receiving the security mode complete message and the RRC reconfiguration complete message on the access network device side and step 410 may be executed by the processor 901, the memory 902, and the transceiver 903.

The processing unit 701 and the transceiver unit 702 may be implemented by the processor 901, the memory 902, and the transceiver 903.

The above-mentioned access network device or the chip in the access network device can also be used to execute various methods executed by the access network device in the method embodiments of FIG. 3 to FIG. 4, and details are not described herein again.

In another embodiment, the communication device may be a terminal device or a chip in the terminal device, where:

The transceiver 903 is configured to receive a RAR message from an access network device, where the RAR message carries uplink authorization information;

The transceiver 903 is further configured to send a first message to the access network device through the resource corresponding to the uplink authorization information;

Start the conflict resolution timer while sending the first message;

If the first condition is met before the conflict resolution timer expires, it is determined that the conflict resolution fails;

The first condition is:

As a possible implementation manner, the processor 901 is further configured to call the program code stored in the memory 902 to perform the following operations:

In the case that the second condition is met before the conflict resolution timer expires, it is determined that the conflict resolution is successful;

The second condition is:

Wherein, steps 503 to 505 may be executed by the processor 901 and the memory 902, and the step of receiving the RAR message on the terminal device side in step 501 may be executed by the transceiver 903.

The starting unit 603 and the determining unit 604 may be implemented by the processor 901 and the memory 902, and the receiving unit 601 and the sending unit 602 may be implemented by the transceiver 903.

The above-mentioned terminal device or the chip in the terminal device may also be used to execute various methods executed by the terminal device in the method embodiment of FIG. 5, and details are not described herein again.

The embodiment of the present invention also discloses a readable storage medium with a program stored on the readable storage medium, and when the program runs, the communication method as shown in FIGS. 3 to 5 is realized.

In another embodiment of the present application, a computer program product is also provided, and the computer program product includes computer instructions stored in the aforementioned computer-readable storage medium.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in further detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. The protection scope, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the present invention shall be included in the protection scope of the present invention.

Claims

A communication method, characterized in that it comprises:

Receiving configuration information from an access network device, where the configuration information includes radio resource control RRC establishment request configuration information;

An RRC setup request is generated according to the RRC setup request configuration information, the RRC setup request carries a first identifier, the RRC setup request also carries at least one of a second identifier or non-access stratum NAS signaling, the first One identifier is an identifier of a terminal device, and the second identifier is an identifier of a core network device;

Sending the RRC establishment request to the access network device.
The method according to claim 1, wherein the receiving configuration information from an access network device comprises:

Receiving the configuration information broadcast from the access network device; or

Receiving a random access response RAR message from an access network device, where the RAR message includes the configuration information.
The method according to claim 1 or 2, wherein the RRC establishment request configuration information is used to indicate the number of time units;

The generating the RRC establishment request according to the RRC establishment request configuration information includes:

Determine N RRC setup request messages according to the RRC setup request configuration information, and each RRC setup request message in the N RRC setup request messages carries the first identifier, the second identifier, or the NAS signaling At least one item of, said N is an integer greater than or equal to 2, and said N RRC setup request messages are carried on M time units; or

Determine one RRC setup request message according to the RRC setup request configuration information, and the one RRC setup request message is carried on M time units;

The M is an integer greater than or equal to 2 and less than or equal to the number of time units.
The method according to claim 1 or 2, wherein the RRC establishment request configuration information is used to indicate the number of RRC establishment request messages;

The generating the RRC establishment request according to the RRC establishment request configuration information includes:

Determine N RRC setup request messages according to the RRC setup request configuration information, and each RRC setup request message in the N RRC setup request messages carries the first identifier, the second identifier, or the NAS signaling At least one item of, the N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages.
The method according to claim 1 or 2, wherein the RRC establishment request configuration information is used to indicate the amount of information carried by the RRC establishment request message;

The generating the RRC establishment request according to the RRC establishment request configuration information includes:

Determining an RRC establishment request message according to the RRC establishment request configuration information, and the size of the information carried by the one RRC establishment request message is less than or equal to the size of the information; or

Determine N RRC setup request messages according to the RRC setup request configuration information, and each RRC setup request message in the N RRC setup request messages carries the first identifier, the second identifier, or the NAS signaling At least one item of, the N is an integer greater than or equal to 2, and the size of the information carried by the N RRC establishment request messages is less than or equal to the size of the information.
The method according to any one of claims 1-5, wherein the configuration information further comprises signal radio bearer SRB1 establishment information, and the method further comprises:

Receiving a conflict resolution message from the access network device;

SRB1 is established according to the SRB1 establishment information.
The method according to any one of claims 3-6, wherein the method further comprises:

Receiving a retransmission instruction from the access network device, where the retransmission instruction carries a third identifier;

Retransmit the information corresponding to the third identifier to the access network device.
The method according to claim 7, wherein the third identifier is the number of the RRC setup request message that needs to be retransmitted, or the number of the time unit corresponding to the information that needs to be retransmitted.
The method according to claim 7 or 8, wherein the receiving a retransmission instruction from the access network device comprises:

Receiving a data packet from the access network device, the data packet including the conflict resolution message and the retransmission instruction.
A communication method, characterized in that it comprises:

Sending configuration information to the terminal device, where the configuration information includes RRC establishment request configuration information, and the RRC establishment request configuration information is used to configure the RRC establishment request;

Receive an RRC setup request from the terminal device, the RRC setup request carries a first identifier, the RRC setup request also carries at least one of a second identifier or NAS signaling, and the first identifier is the terminal The identifier of the device, where the second identifier is the identifier of the core network device.
The method according to claim 10, wherein the sending configuration information to the terminal device comprises:

Send the configuration information to the terminal device in a broadcast mode; or

Send a RAR message to the terminal device, where the RAR message includes the configuration information.
The method according to claim 10 or 11, wherein the RRC establishment request configuration information is used to indicate the number of time units;

The receiving the RRC establishment request from the terminal device includes:

Receive N RRC setup request messages or one RRC setup request message from the terminal device through M time units, each of the N RRC setup request messages carries the first identifier and the first At least one of two identifiers or the NAS signaling, the M is an integer greater than or equal to 2 and less than or equal to the number of time units, and the N is an integer greater than or equal to 2.
The method according to claim 10 or 11, wherein the RRC establishment request configuration information is used to indicate the number of RRC establishment request messages;

The receiving the RRC establishment request from the terminal device includes:

Receiving N RRC setup request messages from the terminal device, each of the N RRC setup request messages carrying at least one of the first identifier, the second identifier, or the NAS signaling In one item, the N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages.
The method according to claim 10 or 11, wherein the RRC establishment request configuration information is used to indicate the amount of information carried by the RRC establishment request message;

The receiving the RRC establishment request from the terminal device includes:

Receiving an RRC setup request message from the terminal device, where the size of the information carried by the one RRC setup request message is less than or equal to the size of the information; or

Receiving N RRC setup request messages from the terminal device, each of the N RRC setup request messages carrying at least one of the first identifier, the second identifier, or the NAS signaling In one item, the N is an integer greater than or equal to 2, and the amount of information carried by the N RRC setup request messages is less than or equal to the size of the information.
The method according to any one of claims 10-14, wherein the configuration information further comprises SRB1 establishment information, and the method further comprises:

Send a conflict resolution message to the terminal device, where the conflict resolution message instructs the terminal device to establish SRB1 according to the SRB1 establishment information.
The method according to any one of claims 12-15, wherein the method further comprises:

Sending a retransmission instruction to the terminal device, where the retransmission instruction carries a third identifier;

Receiving information corresponding to the third identifier from the terminal device.
The method according to claim 16, wherein the third identifier is the number of the RRC setup request message that needs to be retransmitted, or the number of the time unit corresponding to the information that needs to be retransmitted.
The method according to claim 16 or 17, wherein the sending a retransmission instruction to the terminal device comprises:

Sending a data packet to the terminal device, the data packet including the conflict resolution message and the retransmission instruction.
A communication method, characterized in that it comprises:

Receiving a RAR message from an access network device, the RAR message carrying uplink authorization information;

Sending a first message to the access network device through the resource corresponding to the uplink authorization information;

Starting the conflict resolution timer while sending the first message;

If the first condition is met before the conflict resolution timer expires, determining that the conflict resolution fails;

The first condition is:

The downlink control information DCI including the uplink scheduling is received from the access network device, and the uplink scheduling is not the scheduling used to retransmit the first message.
The method according to claim 19, wherein the receiving DCI including uplink scheduling from the access network device, and the uplink scheduling is not used for retransmitting the first message scheduling comprises:

When the DCI including uplink scheduling is received from the access network device, in the case that the transmission block value corresponding to the uplink scheduling is not equal to the initial transmission block length of the first message, it is determined that the uplink scheduling is not used for Scheduling for retransmission of the first message; or

When the DCI including uplink scheduling is received from the access network device, when the number of the HARQ process included in the uplink scheduling is different from the number of the HARQ process used in the transmission of the first message , Determining that the uplink scheduling is not the scheduling used to retransmit the first message; or

When the DCI including uplink scheduling is received from the access network device, and in the case where the indication information carried by the DCI indicates that the uplink scheduling is not scheduling for message 3, it is determined that the uplink scheduling is not used for retransmission. Describe the scheduling of the first message.
The method according to claim 19 or 20, wherein the method further comprises:

In a case where the second condition is met before the conflict resolution timer expires, determining that the conflict resolution is successful;

The second condition is:

A conflict resolution message from the access network device is received, and there is partial information in the first message that matches the conflict resolution information included in the conflict resolution message.
A communication device, characterized by comprising:

A receiving unit, configured to receive configuration information from an access network device, where the configuration information includes radio resource control RRC establishment request configuration information;

The generating unit is configured to generate an RRC setup request according to the RRC setup request configuration information received by the receiving unit, the RRC setup request carries a first identifier, and the RRC setup request also carries at least one of a second identifier or NAS signaling Item, the first identifier is an identifier of a terminal device, and the second identifier is an identifier of a core network device;

The sending unit is configured to send the RRC establishment request generated by the generating unit to the access network device.
The device according to claim 22, wherein the receiving unit is specifically configured to:

Receiving the configuration information broadcast from the access network device; or

Receive a RAR message from an access network device, where the RAR message includes the configuration information.
The device according to claim 22 or 23, wherein the RRC establishment request configuration information is used to indicate the number of time units;

The generating unit is specifically used for:

Determine N RRC setup request messages according to the RRC setup request configuration information, and each RRC setup request message in the N RRC setup request messages carries the first identifier, the second identifier, or the NAS signaling At least one item of, said N is an integer greater than or equal to 2, and said N RRC setup request messages are carried on M time units; or

Determine one RRC setup request message according to the RRC setup request configuration information, and the one RRC setup request message is carried on M time units;

The M is an integer greater than or equal to 2 and less than or equal to the number of time units.
The apparatus according to claim 22 or 23, wherein the RRC establishment request configuration information is used to indicate the number of RRC establishment request messages;

The generating unit is specifically configured to determine N RRC establishment request messages according to the RRC establishment request configuration information, and each RRC establishment request message in the N RRC establishment request messages carries the first identifier and the second At least one of the identifier or the NAS signaling, and the N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages.
The apparatus according to claim 22 or 23, wherein the RRC establishment request configuration information is used to indicate the amount of information carried by the RRC establishment request message;

The generating unit is specifically used for:

Determining an RRC establishment request message according to the RRC establishment request configuration information, and the size of the information carried by the one RRC establishment request message is less than or equal to the size of the information; or

Determine N RRC setup request messages according to the RRC setup request configuration information, and each RRC setup request message in the N RRC setup request messages carries the first identifier, the second identifier, or the NAS signaling At least one item of, the N is an integer greater than or equal to 2, and the size of the information carried by the N RRC establishment request messages is less than or equal to the size of the information.
The apparatus according to any one of claims 22-26, wherein the configuration information further comprises SRB1 establishment information, and the receiving unit is further configured to receive a conflict resolution message from the access network device;

The device also includes:

The establishment unit is configured to establish SRB1 according to the SRB1 establishment information received by the receiving unit.
The apparatus according to any one of claims 24-26, wherein the receiving unit is further configured to receive a retransmission instruction from the access network device, and the retransmission instruction carries a third identifier;

The sending unit is further configured to retransmit the information corresponding to the third identifier received by the receiving unit to the access network device.
The apparatus according to claim 28, wherein the third identifier is the number of the RRC setup request message that needs to be retransmitted, or the number of the time unit corresponding to the information that needs to be retransmitted.
The apparatus according to claim 28 or 29, wherein the receiving unit receiving a retransmission instruction from the access network device comprises:

Receiving a data packet from the access network device, the data packet including the conflict resolution message and the retransmission instruction.
A communication device, characterized by comprising a processing unit and a transceiver unit, the processing unit being used for:

Controlling the transceiver unit to send configuration information to the terminal device, where the configuration information includes RRC establishment request configuration information, and the RRC establishment request configuration information is used to configure the RRC establishment request;

Control the transceiving unit to receive an RRC setup request from the terminal device, the RRC setup request carries a first identifier, the RRC setup request also carries at least one of a second identifier or NAS signaling, and the first The identifier is the identifier of the terminal device, and the second identifier is the identifier of the core network device.
The apparatus according to claim 31, wherein the sending and receiving unit sending configuration information to the terminal device comprises:

Send the configuration information to the terminal device in a broadcast mode; or

Send a RAR message to the terminal device, where the RAR message includes the configuration information.
The apparatus according to claim 31 or 32, wherein the RRC establishment request configuration information is used to indicate the number of time units;

The receiving, by the transceiving unit, the RRC establishment request from the terminal device includes:

Receive N RRC setup request messages or one RRC setup request message from the terminal device through M time units, each of the N RRC setup request messages carries the first identifier and the first At least one of two identifiers or the NAS signaling, the M is an integer greater than or equal to 2 and less than or equal to the number of time units, and the N is an integer greater than or equal to 2.
The apparatus according to claim 31 or 32, wherein the RRC establishment request configuration information is used to indicate the number of RRC establishment request messages;

The receiving, by the transceiving unit, the RRC establishment request from the terminal device includes:

Receiving N RRC setup request messages from the terminal device, each of the N RRC setup request messages carrying at least one of the first identifier, the second identifier, or the NAS signaling In one item, the N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages.
The apparatus according to claim 31 or 32, wherein the RRC establishment request configuration information is used to indicate the amount of information carried by the RRC establishment request message;

The receiving, by the transceiving unit, the RRC establishment request from the terminal device includes:

Receiving an RRC setup request message from the terminal device, where the size of the information carried by the one RRC setup request message is less than or equal to the size of the information; or

Receiving N RRC setup request messages from the terminal device, each of the N RRC setup request messages carrying at least one of the first identifier, the second identifier, or the NAS signaling In one item, the N is an integer greater than or equal to 2, and the amount of information carried by the N RRC setup request messages is less than or equal to the size of the information.
The device according to any one of claims 31-35, wherein the configuration information further comprises SRB1 establishment information, and the processing unit is further configured to:

Control the transceiver unit to send a conflict resolution message to the terminal device, where the conflict resolution message instructs the terminal device to establish SRB1 according to the SRB1 establishment information.
The device according to any one of claims 33-36, wherein the processing unit is further configured to:

Controlling the transceiver unit to send a retransmission instruction to the terminal device, where the retransmission instruction carries a third identifier;

Controlling the transceiving unit to receive the information corresponding to the third identifier from the terminal device.
The apparatus according to claim 37, wherein the third identifier is the number of the RRC setup request message that needs to be retransmitted, or the number of the time unit corresponding to the information that needs to be retransmitted.
The apparatus according to claim 37 or 38, wherein the sending and receiving unit sending a retransmission instruction to the terminal device comprises:

Sending a data packet to the terminal device, the data packet including the conflict resolution message and the retransmission instruction.
A communication device, characterized by comprising:

A receiving unit, configured to receive a RAR message from an access network device, the RAR message carrying uplink authorization information;

A sending unit, configured to send a first message to the access network device through the resource corresponding to the uplink authorization information received by the receiving unit;

A starting unit, configured to start a conflict resolution timer when the sending unit sends the first message;

The determining unit is configured to determine that the conflict resolution fails when the first condition is met before the conflict resolution timer started by the starting unit expires;

The first condition is:

The DCI including uplink scheduling is received from the access network device, and the uplink scheduling is not a scheduling used to retransmit the first message.
The apparatus according to claim 40, wherein the receiving of the DCI including uplink scheduling from the access network device, and the scheduling that the uplink scheduling is not used to retransmit the first message comprises:

When the DCI including uplink scheduling is received from the access network device, in the case that the transmission block value corresponding to the uplink scheduling is not equal to the initial transmission block length of the first message, it is determined that the uplink scheduling is not used for Scheduling for retransmission of the first message; or

The DCI including uplink scheduling is received from the access network device, and in the case that the number of the HARQ process included in the uplink scheduling is different from the number of the HARQ process used in the transmission of the first message, determine the uplink The scheduling is not the scheduling used to retransmit the first message; or

When the DCI including uplink scheduling is received from the access network device, and in the case where the indication information carried by the DCI indicates that the uplink scheduling is not scheduling for message 3, it is determined that the uplink scheduling is not used for retransmission. Describe the scheduling of the first message.
The device according to claim 40 or 41, wherein the determining unit is further configured to determine that the conflict resolution is successful when the second condition is satisfied before the conflict resolution timer expires;

The second condition is:

A conflict resolution message from the access network device is received, and there is partial information in the first message that matches the conflict resolution information included in the conflict resolution message.
A communication device, characterized by comprising:

Hardware related to program instructions, which is used to execute the method steps of any one of claims 1-21.
A readable storage medium, wherein a program is stored on the readable storage medium, and when the program runs, the communication method according to any one of claims 1-21 is realized.