CN111479332A - Communication method and device - Google Patents

Abstract

The embodiment of the invention discloses a communication method and equipment, which comprises the following steps: receiving configuration information from access network equipment, wherein the configuration information comprises Radio Resource Control (RRC) establishment request configuration information; generating an RRC establishment request according to the RRC establishment request configuration information, wherein the RRC establishment request carries a first identifier, the RRC establishment request also carries at least one of a second identifier or non-access stratum (NAS) signaling, the first identifier is an identifier of the terminal equipment, and the second identifier is an identifier of the core network equipment; an RRC setup request is sent to the access network device. The embodiment of the invention can improve the communication efficiency.

Description

A communication method and device

technical field

Embodiments of the present invention relate to the field of communication technologies, 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. At present, the RRC connection between the terminal device and the access network device needs to perform multiple information exchanges to complete. However, when the distance between the terminal device and the access network device is relatively large, it takes a long time for an information exchange between the terminal device and 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

Embodiments of the present invention disclose a communication method and device, which are used to improve communication efficiency.

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

In one embodiment, configuration information broadcast by the access network device system may be received, and a random access response (random access response, RAR) message including configuration information may also be received from the access network device. Through the 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 fast access of the terminal device and sufficient resources. In addition, the sending method of system broadcast enables 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 terminal can generate the RRC establishment request in advance.

In one 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, and each RRC setup request message in 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 N RRC setup request messages are carried on M time units; an RRC setup request can also be determined according to the RRC setup request configuration information message, this 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. 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 may be determined according to the RRC setup request configuration information, 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, and N is an integer greater than or equal to 2 and less than or equal to the number of RRC setup 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 one 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 may be determined according to the RRC setup request configuration information, and the amount of information carried by the RRC setup request message The size is less than or equal to the information size. It is also possible to 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 at least one of the first identifier, the second identifier or the NAS signaling, where N is greater than or an integer equal to 2, the size of the amount of information carried by the N RRC establishment request messages is less than or equal to the size of the amount of information. 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 one embodiment, the configuration information may further include signal radio bearer (signal radio bearer, SRB) 1 establishment information, 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 the SRB1 establishment information, after it is determined that the conflict is successfully resolved, the 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 the SRB1 again, which can reduce the delay for the terminal device to establish the SRB1.

In one embodiment, a retransmission instruction carrying the third identifier from the access network device may be received, and information corresponding to the third identifier may be retransmitted to the access network device. It can be seen that when all or part of the transmission of the RRC establishment request fails, the terminal device can re-send 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 one embodiment, the third identifier may be the number of the RRC establishment request message that needs to be retransmitted, or may be the number of the time unit corresponding to the information that needs to be retransmitted. When the RRC setup request includes multiple RRC setup request messages, or the RRC setup request is carried in multiple time units, the information to be retransmitted can be directly identified by the number of the failed RRC setup request message or the number of the time unit.

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

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

In one embodiment, the configuration information may be sent to the terminal device in a system broadcast manner, or an RAR message including the configuration information may be sent to the terminal device. Through the 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 fast access of the terminal device and sufficient resources. In addition, the sending method of system broadcast enables 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 terminal can generate the RRC establishment request in advance.

In one 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 may be received through M time units. Each RRC setup 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. 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 N RRC setup request messages from the terminal device can be received, and each RRC setup request message in the N RRC setup request messages carries the first RRC setup request message. At least one of the identity, the second identity, or NAS signaling, and N is an integer greater than or equal to 2 and less than or equal to the number of RRC setup 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 one embodiment, the RRC setup request configuration information is used to indicate the size of the amount of information carried by the RRC setup request message, and an RRC setup request message from the terminal device may be received, and the size of the amount of information carried by the RRC setup request message is less than or equal to the amount of information; it can also receive N RRC setup request messages from the terminal equipment, 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 size of the amount of information carried by the N RRC establishment request messages is less than or equal to the size of 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 one embodiment, the configuration information may further include SRB1 establishment information, and a conflict resolution message may be sent to the terminal device, where 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 is successfully resolved, 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 the SRB1 again, which can reduce the delay for the terminal device to establish the SRB1.

In one 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 transmission of the RRC establishment request fails, 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 one embodiment, the third identifier may be the number of the RRC establishment request message that needs to be retransmitted, or may be the number of the time unit corresponding to the information that needs to be retransmitted. When the RRC setup request includes multiple RRC setup request messages, or the RRC setup request is carried in multiple time units, the information to be retransmitted can be directly identified by the number of the failed RRC setup request message or the number of the time unit.

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

A third aspect discloses a communication method, 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 the transmission while sending the first message. The conflict resolution timer determines that the conflict resolution fails when the first condition is satisfied 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 a scheduling for retransmitting the first message. Because 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, the terminal device can avoid blindly retransmitting information, thereby avoiding affecting other information transmission. In addition, since it can be determined that the conflict resolution fails before the conflict resolution timer expires without waiting until the conflict resolution timer expires, processing efficiency can be improved.

In one embodiment, the DCI including the uplink scheduling may be received from the access network device, and in the case that the value of the transmission block 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 of retransmission of the first message; it may also be receiving the DCI including the uplink scheduling from the access network device, the number of the hybrid automatic repeat request (HARQ) process included in the uplink scheduling and the first message When the numbers of the HARQ processes used during transmission are different, it is determined that the uplink scheduling is not the scheduling used to retransmit the first message; it may also be that the DCI including the uplink scheduling from the access network device is received, and the indication information carried in the DCI When it is indicated that the uplink scheduling is not the scheduling for 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 if the second condition is satisfied 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, the communication device includes a unit for executing the first aspect or the communication method disclosed in any embodiment of the first aspect, or includes a unit for executing the second aspect or the second aspect A unit of the communication method disclosed in any one of the embodiments, or a unit for executing the third aspect or the communication method disclosed in any one of the embodiments of the third aspect.

A fifth aspect discloses a communication apparatus, where the communication apparatus may be a terminal device or a chip in the terminal device. The communication apparatus may include a processor, the processor and the memory are coupled to each other, the memory is used for storing computer programs or instructions, and the processor is used for executing the computer programs or instructions stored in the memory, so that the communication apparatus performs the first aspect or any of the first aspect. A communication method disclosed in an embodiment.

A sixth aspect discloses a communication apparatus, where the communication apparatus may be an access network device or a chip in the access network device. The communication apparatus may include a processor, the processor and the memory are coupled to each other, the memory is used for storing computer programs or instructions, and the processor is used for executing the computer programs or instructions stored in the memory, so that the communication apparatus performs the second aspect or any of the second aspect. A communication method disclosed in an embodiment.

A seventh aspect discloses a communication apparatus, where the communication apparatus may be a terminal device or a chip in the terminal device. The communication apparatus may include a processor, the processor and the memory are coupled to each other, the memory is used for storing computer programs or instructions, and the processor is used for executing the computer programs or instructions stored in the memory, so that the communication apparatus performs the third aspect or any of the third aspects. A unit of a communication method disclosed in an embodiment.

The eighth aspect discloses a readable storage medium on which a program is stored, and when the program runs, the communication method disclosed in the first aspect or any one of the embodiments of the first aspect is implemented, or the The communication method disclosed in the second aspect or any one of the embodiments of the second aspect, or the communication method disclosed in the third aspect or any one of the embodiments 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 drawings

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

2 is a schematic flowchart of an RRC connection establishment 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;

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

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

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 apparatus disclosed in an embodiment of the present invention.

Detailed ways

Embodiments of the present invention disclose a communication method and device, which are used to improve communication efficiency. Each of them will be described in detail below.

In order to better understand the communication method and device disclosed in the embodiments of the present invention, the following first describes the network architecture used in the embodiments of the present invention. Please refer to FIG. 1. FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention. As shown in FIG. 1 , the network architecture may include one or more terminal devices 1 (one is illustrated in FIG. 1 ), one or more access network devices 2 (one is illustrated in FIG. 1 ), and one or more A core network device 3. In the satellite communication architecture, the access network device 2 may include a base station and a satellite, and all the base stations may be 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 (ie, from the terminal device 1 to the access network device 2) communication and downlink (ie, from 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 a random access channel (random access channel, RACH), a physical uplink control channel (physical uplink control channel, PUCCH), a physical uplink shared channel (physical uplink shared channel, PUSCH) and the like.

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

In the 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 for receiving 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 the like.

Downlink signals may 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) and the like.

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

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 may be a base transceiver station (BTS) in a global system for mobile communication (GSM) or a code division multiple access (CDMA) network, or a broadband code division multiple access (BTS) network. A node base station (NB) in wideband code division multiple access (WCDMA), it can also be an evolutional NB (eNB or eNodeB) in long term evolution (LTE), or it can be The wireless controller in the cloud radio access network (CRAN) scenario can also be the base station equipment in the future 5G network or the access network equipment in the future evolved PLMN network, and can also be a wearable device or a vehicle 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 may correspond to a serving GPRS support node (SGSN) of general packet radio service (GPRS) and/or a gateway GPRS support node (GGSN) of GPRS. In 4G, it may correspond to a mobility management entity (mobility management entity, MME) and/or a serving gateway (serving gateway, S-GW). In 5G, it can correspond to an access and mobility management function (AMF), a session management function (SMF) or a user plane function (UPF).

In order to better understand the communication method and device disclosed in the embodiments of the present invention, the application scenarios of the embodiments of the present invention are first described below. 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. An RB can be understood as a logical channel, including a signal radio bearer SRB and a data radio bearer (DRB), where the SRB is a signaling channel, and the DRB is a data channel. The SRBs include SRB0, SRB1, and SRB2. SRB0 is used to transmit RRC messages using a common control channel (CCCH). The 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 an SRB0, and the terminal device can obtain the configuration and resources of the SRB0 through the agreement of the protocol in the RRC idle state, and can be used directly 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 (connected) state, and then transmits signaling through SRB1 to establish SRB2 to transmit NAS signaling, and transmit signaling through SRB1. DRB is established to transmit user data. During the service process, the SRB1 is used for management. When the service ends, the signaling transmitted on the SRB1 can release all the DRBs and SRBs, so that the terminal equipment enters the RRC idle state. An RRC Setup (RRCSetup) message for establishing SRB1 is transmitted through SRB0. An RRC Reconfiguration (RRCReconfiguration) message for modifying the RRC connection is transmitted through SRB1 in order to establish SRB2 and DRB.

Please refer to FIG. 2, which is a schematic flowchart of an RRC connection establishment 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 1 carrying the identity of the terminal device, namely msg1, or a preamble message, to the access network device through SRB0. After receiving the msg1 from the terminal device, the access network device configures the first resource for the terminal device, and then sends a message 2 including the first resource and a random access preamble (RAP)-ID to the terminal device, namely msg2 , that is, the RAR message. After receiving the msg2, the terminal device determines whether the RAP-ID matches the msg1. If it is determined that the RAP-ID matches the msg1, it indicates that the msg2 is the msg2 sent to the terminal device, and then uses the first resource to send the message to the access network. The device sends a message 3 carrying the identity of the terminal device, namely msg3, that 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 setup 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 may send an acknowledgement message or a scheduling request (SR) to the access network device under the condition that the conflict resolution is successful and the RRC setup 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 establishment message, and the terminal device enters the connected state from the idle state, and then the terminal device sends the core The identity of the network device and the RRC establishment complete message of NAS signaling. After the access network device receives the RRC establishment complete message from the terminal device, it sends an initialization terminal device message (INITIAL UE MESSAGE) including NAS signaling to the core network device identified by the identity of the core network device. After receiving the INITIAL UE MESSAGE message from the access network device, the core network device sends an initialization context establishment request (INITIALCONTEXT SETUP REQUEST) to the access network device. After receiving the initialization context establishment request from the core network device, the access network device sends a security mode command (SecurityModeCommand) and an RRC reconfiguration (RRCReconfiguration) message to the terminal device. After receiving the security mode command and RRC reconfiguration message from the access network device, the terminal device performs security activation according to the security mode command, establishes SRB2 and DRB according to the RRC reconfiguration message, and then sends the security mode complete (SecurityModeComplete) message to the access network device. ) message and the RRC reconfiguration complete (RRCReconfigurationComplete) message. After receiving the security mode complete message and the RRC reconfiguration complete message from the terminal device, the access network device sends an initialization context establishment response (INITIALCONTEXT SETUP RESPOND) to the core network device, indicating that the RRC establishment is completed. The identity 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 , which is a schematic flowchart of a communication method disclosed in an embodiment of the present invention. As shown in FIG. 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 RRC setup request configuration information to the terminal device, may send the configuration information to the terminal device in a broadcast manner, or may send a RAR message including the configuration information and RAP-ID to the terminal device. The configuration information may further include SRB1 establishment information, and the configuration information may further 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 may be configured according to the RRC establishment request configuration information, and the configuration method may be generation.

Optionally, when the terminal device needs to send information, the terminal device can send an authorization request to the access network device through SRB0, and the authorization request can be implemented through a preamble message, or through other messages or other methods. The example is not limited here. After receiving the authorization request from the terminal device, the access network device may send the configuration information to the terminal through the RAR message including the RAP-ID.

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

The terminal device may receive configuration information from the terminal device, may receive the configuration information through a RAR message, or may receive the configuration information through a 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, and when it is determined that the RAP-ID matches the authorization request, It is determined that the received RAR message is an RAR message sent to the terminal device, and then an RRC setup request is generated according to the RRC setup request configuration information included in the RAR message, that is, an RRC setup request is configured according to the RRC setup 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 further carry at least one of a second identifier or NAS signaling, where the first identifier is the identifier of the terminal device, and the second identifier is the identifier of the core network device. The first identity may be a temporary mobile subscriber identity (temporary mobile subscriber identity, TMSI), or may be another identity capable of uniquely identifying the terminal device. The second identifier is the identifier of the core network device registered by the terminal device. The RRC establishment request may further carry a public land mobile network (public land mobile network, PLMN), and the RRC establishment request may further carry buffer status report (buffer status report, BSR) information. The RRC setup request may include one RRC setup request message, or may include N RRC setup request messages, where N is an integer greater than 1.

The RRC setup request configuration information may indicate the number of time units, or may explicitly indicate the number of time units, for example, the RRC setup request configuration information is the number of time units. The number of time units may also be indicated implicitly. For example, the RRC establishment request configuration information may be used to indicate the number of time units, or may be an index of the number of time units, or may be an index of multiple time units. The number of time units here may be the maximum number of time units allowed to be used by the terminal device, or may be the number of time units allowed to be used by the terminal device. N RRC setup request messages may be determined according to the RRC setup request configuration information, and each RRC setup request message in the N RRC setup request messages may carry at least one of the first identifier, the second identifier, or NAS signaling, and the N RRC setup request messages The setup request message is carried on M time units. The size of the amount of information carried by each RRC setup request message in the N RRC setup request messages may be greater than, equal to, or smaller than the maximum amount of information that can be carried in one time unit, and may be one RRC setup request message carrying one piece of information, or multiple Each RRC setup request message carries one piece of information. An RRC setup request message may also be determined according to the RRC setup request configuration information, and the RRC setup 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 3 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 sending. For example, the RRC setup request configuration information may indicate that the number of time units is 3, and the terminal determines one RRC setup request message. This RRC setup request message may carry the first identifier, the second identifier and the NAS signaling. The establishment request message is mapped to 3 time units for sending. The time unit may be a slot, a symbol, a subframe, a frame, or other time units, which are not limited in this embodiment.

The RRC setup request configuration information may indicate the number of RRC setup request messages, or may explicitly indicate the number of RRC setup request messages, for example, the RRC setup request configuration information is the number of RRC setup request messages. The number of RRC setup request messages may also be implicitly indicated, for example, the RRC setup request configuration information may indicate the number of RRC setup request messages, or may be an index of the number of RRC setup request messages. The number of RRC establishment request messages here may be the maximum number of RRC establishment request messages allowed to be established by the terminal device, or may be the number of RRC establishment request messages allowed to be established by the terminal device. N RRC setup request messages can be determined according to the RRC setup request configuration information, 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 the 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 may indicate that the number of RRC setup request messages is 3, the terminal device may determine 3 RRC setup request messages, the first RRC setup request message may carry the first identifier, and the second RRC setup request message may carry the first identifier. The request message may carry the second identifier, and the third RRC establishment request message may carry NAS signaling.

The RRC setup request configuration information may indicate the amount of information carried by the RRC setup request message, or may explicitly indicate the amount of information carried by the RRC setup request message. For example, the RRC setup request configuration information is the amount of information carried by the RRC setup 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 the long RRC setup request message or the short RRC setup request message, or the amount of information carried by the RRC setup request message. size index. The size of the amount of 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 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 size of the information carried by this RRC setup request message is less than or equal to the size of the information size, and the size of the information size is the RRC setup request message indicated by the above RRC setup request configuration information. The amount of information carried. It is also possible to 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 at least one of the first identifier, the second identifier or the NAS signaling, where N is greater than or an integer equal to 2, the size of the amount of information carried by the N RRC establishment request messages is less than or equal to the size of the amount of information. Specifically, for example, the RRC setup request configuration information may instruct the terminal device to use a long RRC setup request message, then 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 may carry the first identifier. The setup message may carry the second identifier, and the third RRC setup message may carry NAS signaling. For example, the RRC setup request configuration information may instruct the terminal device to use a short RRC setup request message, the terminal device may determine one RRC setup request message, and the RRC setup 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 where 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 may be received through M time units, and each of the N RRC setup request messages The RRC setup 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 RRC setup request message in the N RRC setup request messages carries the first identifier, At least one item in the second identification or NAS signaling, N is an integer greater than or equal to 2 and less than or equal to the number of RRC setup request messages.

In the case where the RRC setup request configuration information is used to indicate the size of the amount of information carried by the RRC setup request message, an RRC setup request message from the terminal device may be received, and the size of the amount of 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 the NAS signaling, and N is greater than or equal to An integer of 2, the size of the amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information.

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

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

Wherein, step 401 is the same as step 301, please refer to step 301 for a detailed description, 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 a detailed description, please refer to step 302, and details are not repeated here.

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

Wherein, step 403 is the same as step 303, and for a detailed description, please refer to step 303, and details are not 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 the RRC establishment request from the terminal device has been received. In the case that the RRC establishment request is successfully received, there is no need to send a retransmission indication to the terminal device. In the case that the reception of the RRC establishment request fails, it is also necessary to send a retransmission indication carrying the third identifier to the terminal device. At this time, the conflict resolution message and the retransmission indication 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 indication may be different parts in the MAC PDU. Optionally, the third identifier may be the number of the RRC establishment request message to be retransmitted, or may be the number of the time unit corresponding to the information to be retransmitted. Specifically, for example, the terminal device sends 3 RRC setup request messages, the access network device receives the first RRC setup request message and the third RRC setup request message, but does not receive the second RRC setup request message, and receives The network access device may set the third identifier as the identifier of the second RRC establishment request message. After judging that the MAC PDU is a message sent to itself according to the conflict resolution message, the terminal device performs retransmission judgment according to the retransmission indication in the MAC PDU, and judges accordingly that the second RRC establishment request message needs to be retransmitted.

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 identifier of the terminal device. SRB1. If it is determined that the situation is different, it is determined that the conflict resolution fails, and step 401 may be performed again.

After receiving the retransmission indication, 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 is successfully resolved.

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 identification when the RRC establishment request carries the first identification, the second identification 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 receiving the context establishment request from the core network device, the access network device may send the security mode instruction and the RRC reconfiguration message to the terminal device.

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

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

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

In order to better understand the communication method and device disclosed in the embodiments of the present invention, the application scenarios of the embodiments of the present invention are first described below. 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 complete message to the terminal device, and then the terminal device can send the RRC establishment complete message according to the authorization. However, considering that the authorized sending of the SR and RRC establishment complete messages will increase the delay. Therefore, in order to speed up the transmission of the RRC setup complete message, after the access network device sends the RRC setup message to the terminal device, it sends an authorization message for scheduling the RRC setup complete message to the terminal device. However, when the terminal device does not receive the conflict resolution message and the RRC setup message sent by the access network device, but receives the authorization message for scheduling the RRC setup complete message, the terminal device will mistakenly think that the authorization message is used for A message that is retransmitted on schedule message 3.

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

501. The access network device sends an RAR message carrying uplink authorization information to the terminal device.

When the terminal device needs to send information, the terminal device can send an authorization request to the access network device, and the authorization request can be implemented through a preamble message, or through other messages or other methods, which are not limited in this embodiment.

After receiving the authorization request from the terminal device, the access network device may 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. The RAR message of the terminal device then sends the first message to the access network device through the resource corresponding to the uplink grant information. The first message may be an RRC establishment request, or may be other messages, which are 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, it is also necessary to send a retransmission indication 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 satisfied before the conflict resolution timer expires.

The terminal device starts a conflict resolution timer while sending the first message, and determines that the conflict resolution fails if the first condition is satisfied before the conflict resolution timer expires. The first condition is that a DCI including an uplink schedule is received from the access network device, and the uplink schedule is not a schedule for retransmitting the first message. By judging the first condition, the terminal can avoid erroneously retransmitting the first message, and the erroneous retransmission of the first message may cause interference to messages transmitted by other terminals, thus reducing interference to other terminal devices.

It may be that the DCI including the uplink scheduling from the access network device is received, and 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 retransmitting the first message. scheduling. It may also be that the DCI including the uplink scheduling from the access network device is received, 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, it is determined that the uplink scheduling is not used for replay. The schedule for transmitting the first message. It may also be that the DCI including the uplink scheduling from the access network device is received, and when the indication information carried by the DCI indicates that the uplink scheduling is not the scheduling for message 3, it is determined that the uplink scheduling is not the scheduling for retransmitting the first message.

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

505. The terminal device determines that the conflict is successfully resolved when the second condition is satisfied before the conflict resolution timer expires.

If the second condition is satisfied before the conflict resolution timer expires, it is determined that the conflict resolution is successful, and then the conflict resolution timer is turned off. 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 above embodiment, please refer to FIG. 6 , which is a schematic structural diagram of a communication apparatus disclosed in an embodiment of the present invention. Wherein, the communication device may be applied to the communication methods shown in FIG. 3 and FIG. 4 above. As shown in Figure 6, the communication device may include:

A receiving unit 601, 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 establishment request according to the RRC establishment request configuration information received by the receiving unit 601, the RRC establishment request carries a first identifier, and the RRC establishment request also carries at least one of a second identifier or NAS signaling, the first 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 used for:

receive configuration information broadcast from access network devices; or

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

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

The generating unit 602 is specifically used for:

N RRC setup request messages are 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 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 setup request configuration information is used to indicate the number of RRC setup request messages;

The generating unit 602 is specifically configured to 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 at least one of the first identifier, the second identifier or the NAS signaling. item, N is an integer greater than or equal to 2 and less than or equal to the number of RRC setup 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 setup request message according to the RRC setup request configuration information, and the size of the amount of information carried by one RRC setup request message is less than or equal to the size of the amount of information; or

N RRC setup request messages are 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 equal to An integer of 2, the size of the amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information.

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 the access network device;

The communication device may also include:

The establishing unit 604 is configured to establish the 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 indication from the access network device, where the retransmission indication 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 establishment 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 indication from the access network device includes:

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

More detailed descriptions of the above receiving unit 601, generating unit 602, sending unit 603 and establishing unit 604 can be obtained directly by referring to the relevant descriptions of the terminal equipment 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 above embodiment, please refer to FIG. 7 , which is a schematic structural diagram of another communication apparatus disclosed in an embodiment of the present invention. Wherein, the communication device may be applied to the communication methods shown in FIG. 3 and FIG. 4 above. As shown in FIG. 7 , the communication apparatus may include a processing unit 701 and a transceiver unit 702, and the processing unit 701 is used for:

The control transceiver unit 702 sends configuration information to the terminal device, the configuration information includes 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 the RRC establishment request from the terminal equipment, the RRC establishment request carries the first identifier, the RRC establishment request also carries at least one of the second identifier or the NAS signaling, the first identifier is the identifier of the terminal equipment, and the second identifier is the identifier of the terminal equipment. The ID is the ID of the core network device.

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

Broadcast configuration information to end devices; or

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

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

The sending and receiving 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, 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, 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.

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

The sending and receiving unit 702 receives the RRC establishment request from the terminal device including:

Receive N RRC setup request messages from the terminal equipment, each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier or the NAS signaling, and N is greater than or equal to 2 and An integer less than or equal to the number of RRC setup 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 sending and receiving unit 702 receives the RRC establishment request from the terminal device including:

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

Receive N RRC setup request messages from the terminal equipment, each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier or the NAS signaling, and N is greater than or equal to 2 Integer, the size of the amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information.

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, where 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 the third identifier;

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

As a possible implementation manner, the third identifier is 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.

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

Send a data packet to the terminal device, the data packet includes a conflict resolution message and a retransmission indication.

More detailed descriptions of the above processing unit 701 and the transceiver unit 702 can be obtained directly by referring to the relevant descriptions of the access network devices in the method embodiments shown in FIG. 3 and FIG. 4 , and details are not repeated here.

Based on the network architecture shown in FIG. 1 and the same concept of the communication method in the above embodiment, please refer to FIG. 8 , which is a schematic structural diagram of another communication apparatus 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:

A receiving unit 801, configured to receive an 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 grant information received by the receiving unit 801;

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

A determining unit 804, configured to determine that the conflict resolution fails when the first condition is satisfied before the conflict resolution timer initiated by the initiating unit 803 times out;

The first condition is:

A DCI including an uplink schedule is received from the access network device, and the uplink schedule is not a schedule for retransmission of the first message.

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

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

After receiving the DCI including the uplink scheduling from the access network device, 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, it is determined that the uplink scheduling is not used for retransmission of the first message. scheduling of messages; or

After receiving the DCI including the uplink scheduling from the access network device, if the indication information carried in the DCI indicates that the uplink scheduling is not the scheduling for message 3, it is determined that the uplink scheduling is not the scheduling for retransmitting 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 satisfied before the conflict resolution timer times out;

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.

More detailed descriptions of the above 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 , which will not be repeated here.

Please refer to FIG. 9. FIG. 9 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention. As shown in FIG. 9 , the communication apparatus 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 integrated circuits for controlling the execution of the programs of the present invention. circuit. Memory 902 may be read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (RAM), or other type of static storage device that can store information and instructions The dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM), or other optical disk storage, optical disk storage ( including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being stored by a computer any other medium taken, 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 memory 902 bus 904 may include a path to transfer information between the components described above. The transceiver 903 may be a transceiver antenna, or may be other transceiver devices, such as a radio frequency transceiver, or a signal transceiver interface. in:

In one embodiment, the communication device may be a terminal device or a chip in the terminal device, wherein:

A transceiver 903, configured to receive configuration information from an access network device, where the configuration information includes RRC setup request configuration information;

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 perform the following operations:

An 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 further configured 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:

receive configuration information broadcast from access network devices; or

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

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

The processor 901 generates an RRC setup request according to the RRC setup request configuration information, including:

N RRC setup request messages are 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 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 setup request configuration information is used to indicate the number of RRC setup request messages;

The processor 901 generates an RRC setup request according to the RRC setup request configuration information, including:

N RRC setup request messages are 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 equal to 2 and an integer less than or equal to the number of RRC setup 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 processor 901 generates an RRC setup request according to the RRC setup request configuration information, including:

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

Receive N RRC setup request messages from the terminal equipment, each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier or the NAS signaling, and N is greater than or equal to 2 Integer, the size of the amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information.

As a possible implementation manner, the configuration information further includes SRB1 establishment information, and the transceiver 903 is further configured to receive a conflict resolution message 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 the access network device, where the retransmission instruction carries a third identifier;

The information corresponding to the third identifier is retransmitted to the access network device.

As a possible implementation manner, the third identifier is 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.

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

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

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 in 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 may be implemented by the processor 901 and the memory 902 , and the receiving unit 601 and the transmitting unit 603 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 embodiments of FIG. 3 to FIG. 4 , which will not be described again.

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

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 RRC establishment request configuration information, and the RRC establishment request configuration information is used to configure the RRC establishment request;

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

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

Broadcast configuration information to end devices; or

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

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

The transceiver 903 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, 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, 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.

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

The transceiver 903 receives the RRC establishment request from the terminal device including:

Receive N RRC setup request messages from the terminal equipment, each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier or the NAS signaling, and N is greater than or equal to 2 and An integer less than or equal to the number of RRC setup 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 transceiver 903 receives the RRC establishment request from the terminal device including:

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

Receive N RRC setup request messages from the terminal equipment, each RRC setup request message in the N RRC setup request messages carries at least one of the first identifier, the second identifier or the NAS signaling, and N is greater than or equal to 2 Integer, the size of the amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information.

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:

A 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:

Send a retransmission instruction to the terminal device, and the retransmission instruction carries the third identifier;

Information corresponding to the third identifier from the terminal device is received.

As a possible implementation manner, the third identifier is 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.

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

Send a data packet to the terminal device, the data packet includes a conflict resolution message and a retransmission indication.

Among them, in step 301, step 303 and step 403, the access network device side receives the RRC establishment request, step 401, step 404, step 406, step 407 The access network device side receives the context establishment request, step 408, The steps of receiving the security mode complete message and the RRC reconfiguration complete message on the access network device side in step 409 and step 410 may be performed 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 access network device or the chip in the access network device may also be used to execute various methods performed by the access network device in the method embodiments of FIG. 3 to FIG. 4 , which will not be described again.

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

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

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

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 perform the following operations:

start the conflict resolution timer while sending the first message;

In the case that the first condition is satisfied before the conflict resolution timer expires, it is determined that the conflict resolution fails;

The first condition is:

A DCI including an uplink schedule is received from the access network device, and the uplink schedule is not a schedule for retransmission of the first message.

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

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

After receiving the DCI including the uplink scheduling from the access network device, 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, it is determined that the uplink scheduling is not used for retransmission of the first message. scheduling of messages; or

After receiving the DCI including the uplink scheduling from the access network device, if the indication information carried in the DCI indicates that the uplink scheduling is not the scheduling for message 3, it is determined that the uplink scheduling is not the scheduling for retransmitting the first message.

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 satisfied before the conflict resolution timer expires, it is determined 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.

Wherein, steps 503 to 505 may be performed by the processor 901 and the memory 902 , and the step of receiving the RAR message by the terminal device side in step 501 may be performed 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 transmitting unit 602 may be implemented by the transceiver 903 .

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

An embodiment of the present invention also discloses a readable storage medium, where a program is stored on the readable storage medium, and when the program runs, the communication method shown in FIG. 3 to FIG. 5 is implemented.

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

The specific embodiments described above further describe the objectives, technical solutions and beneficial effects of the present invention in 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. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the present invention shall be included within the protection scope of the present invention.

Claims (44)

1. a communication method, is characterized in that, comprises: receiving configuration information from an access network device, where the configuration information includes radio resource control RRC setup 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, and the RRC setup request also carries at least one of a second identifier or non-access stratum NAS signaling, and the first identifier is included in the RRC setup request. One identifier is the identifier of the terminal device, and the second identifier is the identifier of the core network device; Send the RRC establishment request to the access network device. 2. The method according to claim 1, wherein the receiving configuration information from an access network device comprises: receiving the configuration information broadcast from an access network device; or A random access response RAR message is received from an access network device, where the RAR message includes the configuration information. 3. The method according to claim 1 or 2, wherein the RRC setup request configuration information is used to indicate the number of time units; The generating an RRC setup request according to the RRC setup request configuration information includes: N RRC setup request messages are determined 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 of , the N is an integer greater than or equal to 2, and the 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. 4. The method according to claim 1 or 2, wherein the RRC setup request configuration information is used to indicate the number of RRC setup request messages; The generating an RRC setup request according to the RRC setup request configuration information includes: N RRC setup request messages are determined 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 the RRC setup request messages. 5. The method according to claim 1 or 2, wherein the RRC setup request configuration information is used to indicate the amount of information carried by the RRC setup request message; The generating an RRC setup request according to the RRC setup request configuration information includes: Determine an RRC setup request message according to the RRC setup request configuration information, and the size of the information amount carried by the one RRC setup request message is less than or equal to the size of the information amount; or N RRC setup request messages are determined 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 amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information. 6. 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. 7. The method according to any one of claims 3-6, wherein the method further comprises: receiving a retransmission indication from the access network device, where the retransmission indication carries a third identifier; Retransmit the information corresponding to the third identifier to the access network device. 8 . 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. 9 . The method according to claim 7 or 8, wherein the receiving a retransmission indication from the access network device comprises: A data packet is received from the access network device, the data packet includes the conflict resolution message and the retransmission indication. 10. A communication method, comprising: 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 an RRC establishment request; Receive an RRC establishment request from the terminal device, the RRC establishment request carries a first identity, the RRC establishment request also carries at least one of a second identity or NAS signaling, and the first identity is the terminal The identifier of the device, and the second identifier is the identifier of the core network device. 11. The method according to claim 10, wherein the sending configuration information to the terminal device comprises: send the configuration information to the terminal device by broadcasting; or Send a RAR message to the terminal device, where the RAR message includes the configuration information. 12. The method according to claim 10 or 11, wherein the RRC setup request configuration information is used to indicate the number of time units; The receiving the RRC establishment request from the terminal equipment includes: Receive N RRC setup request messages or one RRC setup request message from the terminal device through M time units, and each RRC setup request message in the N RRC setup request messages carries the first identifier, the first RRC setup request message Two identifiers or at least one item of the NAS signaling, the M is an integer greater than or equal to 2 and less than or equal to the number of the time units, and the N is an integer greater than or equal to 2. 13. The method according to claim 10 or 11, wherein the RRC setup request configuration information is used to indicate the number of RRC setup request messages; The receiving the RRC establishment request from the terminal equipment includes: Receive N RRC setup request messages from the terminal equipment, where each RRC setup request message in the N RRC setup request messages carries 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 the RRC setup request messages. 14. The method according to claim 10 or 11, wherein the RRC setup request configuration information is used to indicate the amount of information carried by the RRC setup request message; The receiving the RRC establishment request from the terminal equipment includes: Receive an RRC setup request message from the terminal device, the size of the amount of information carried by the one RRC setup request message is less than or equal to the size of the amount of information; or Receive N RRC setup request messages from the terminal equipment, where each RRC setup request message in the N RRC setup request messages carries 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 size of the amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information. 15. 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. 16. The method according to any one of claims 12-15, wherein the method further comprises: sending a retransmission indication to the terminal device, where the retransmission indication carries a third identifier; Information corresponding to the third identifier from the terminal device is received. 17 . 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. 18 . The method according to claim 16 or 17, wherein the sending a retransmission indication to the terminal device comprises: Sending a data packet to the terminal device, the data packet including the conflict resolution message and the retransmission indication. 19. A communication method, comprising: receiving an RAR message from an access network device, where the RAR message carries uplink authorization information; Send a first message to the access network device through the resource corresponding to the uplink grant information; starting a conflict resolution timer while sending the first message; In the case where the first condition is satisfied before the conflict resolution timer times out, determine that conflict resolution fails; The first condition is: Downlink control information DCI including uplink scheduling is received from the access network device, and the uplink scheduling is not a scheduling for retransmitting the first message. 20 . The method according to claim 19 , wherein the DCI including uplink scheduling from the access network device is received, and the uplink scheduling is not a scheduling for retransmitting the first message. 21 . include: Receive the DCI including the uplink scheduling from the access network device, and in the case that the transport block value corresponding to the uplink scheduling is not equal to the initial transport block length of the first message, determine that the uplink scheduling is not used for a schedule for retransmission of the first message; or receiving the DCI including the uplink scheduling from the access network device, 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 , determining that the uplink scheduling is not a scheduling for retransmitting the first message; or After receiving the DCI including the uplink scheduling from the access network device, in the case that the indication information carried by the DCI indicates that the uplink scheduling is not the scheduling for message 3, determine that the uplink scheduling is not used for retransmission of all messages. Describe the scheduling of the first message. 21. The method according to claim 19 or 20, wherein the method further comprises: In the case where the second condition is satisfied before the conflict resolution timer times out, determine 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. 22. A communication device, 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; A generating unit, configured to generate an RRC establishment request according to the RRC establishment request configuration information received by the receiving unit, where the RRC establishment request carries a first identity, and the RRC establishment request also carries at least one of a second identity or NAS signaling item, the first identifier is the identifier of the terminal device, and the second identifier is the identifier of the core network device; A sending unit, configured to send the RRC establishment request generated by the generating unit to the access network device. 23. The apparatus according to claim 22, wherein the receiving unit is specifically configured to: receiving the configuration information broadcast from an access network device; or A RAR message is received from an access network device, where the RAR message includes the configuration information. 24. The apparatus according to claim 22 or 23, wherein the RRC setup request configuration information is used to indicate the number of time units; The generating unit is specifically used for: N RRC setup request messages are determined 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 of , the N is an integer greater than or equal to 2, and the 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. 25. The apparatus according to claim 22 or 23, wherein the RRC setup request configuration information is used to indicate the number of RRC setup request messages; The generating unit is specifically configured to determine N RRC setup request messages according to the RRC setup request configuration information, where each RRC setup request message in the N RRC setup request messages carries the first identifier, the second At least one item in the identifier or the NAS signaling, the N is an integer greater than or equal to 2 and less than or equal to the number of the RRC setup request messages. 26. The apparatus according to claim 22 or 23, wherein the RRC setup request configuration information is used to indicate the amount of information carried by the RRC setup request message; The generating unit is specifically used for: Determine an RRC setup request message according to the RRC setup request configuration information, and the size of the information amount carried by the one RRC setup request message is less than or equal to the size of the information amount; or N RRC setup request messages are determined 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 amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information. 27. 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: A establishing unit, configured to establish SRB1 according to the SRB1 establishment information received by the receiving unit. 28. The apparatus according to any one of claims 24-26, wherein the receiving unit is further configured to receive a retransmission indication from the access network device, where the retransmission indication 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. 29. 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. 30. The apparatus according to claim 28 or 29, wherein the receiving unit receiving a retransmission indication from the access network device comprises: A data packet is received from the access network device, the data packet includes the conflict resolution message and the retransmission indication. 31. A communication device, comprising a processing unit and a transceiver unit, wherein the processing unit is configured to: 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 an RRC establishment request; Controlling the transceiver unit to receive an RRC establishment request from the terminal device, where the RRC establishment request carries a first identifier, and the RRC establishment 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. 32. The apparatus according to claim 31, wherein the sending, by the transceiver unit, the configuration information to the terminal device comprises: send the configuration information to the terminal device by broadcasting; or Send a RAR message to the terminal device, where the RAR message includes the configuration information. 33. The apparatus according to claim 31 or 32, wherein the RRC setup request configuration information is used to indicate the number of time units; The receiving, by the transceiver 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, and each RRC setup request message in the N RRC setup request messages carries the first identifier, the first RRC setup request message Two identifiers or at least one item of the NAS signaling, the M is an integer greater than or equal to 2 and less than or equal to the number of the time units, and the N is an integer greater than or equal to 2. 34. The apparatus according to claim 31 or 32, wherein the RRC setup request configuration information is used to indicate the number of RRC setup request messages; The receiving, by the transceiver unit, the RRC establishment request from the terminal device includes: Receive N RRC setup request messages from the terminal equipment, where each RRC setup request message in the N RRC setup request messages carries 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 the RRC setup request messages. 35. The apparatus according to claim 31 or 32, wherein the RRC setup request configuration information is used to indicate the amount of information carried by the RRC setup request message; The receiving, by the transceiver unit, the RRC establishment request from the terminal device includes: Receive an RRC setup request message from the terminal device, and the size of the amount of information carried by the one RRC setup request message is less than or equal to the size of the amount of information; or Receive N RRC setup request messages from the terminal equipment, where each RRC setup request message in the N RRC setup request messages carries 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 size of the amount of information carried by the N RRC setup request messages is less than or equal to the size of the amount of information. 36. The apparatus 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: Controlling 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. 37. The apparatus according to any one of claims 33-36, wherein the processing unit is further configured to: controlling the transceiver unit to send a retransmission indication to the terminal device, where the retransmission indication carries a third identifier; The transceiver unit is controlled to receive information corresponding to the third identifier from the terminal device. 38. 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. 39. The apparatus according to claim 37 or 38, wherein the sending, by the transceiver unit to the terminal device, a retransmission indication comprises: Sending a data packet to the terminal device, the data packet including the conflict resolution message and the retransmission indication. 40. A communication device, comprising: a receiving unit, configured to receive a RAR message from an access network device, where the RAR message carries uplink authorization information; a sending unit, configured to send a first message to the access network device through the resource corresponding to the uplink grant information received by the receiving unit; a starting unit, configured to start a conflict resolution timer when the sending unit sends the first message; a determining unit, configured to determine that the conflict resolution fails when the first condition is satisfied before the conflict resolution timer started by the startup unit times out; The first condition is: A DCI including an uplink schedule is received from the access network device, and the uplink schedule is not a schedule for retransmitting the first message. 41. The apparatus according to claim 40, wherein the DCI including uplink scheduling from the access network device is received, and the uplink scheduling is not a scheduling for retransmitting the first message include: Receive the DCI including the uplink scheduling from the access network device, and in the case that the transport block value corresponding to the uplink scheduling is not equal to the initial transport block length of the first message, determine that the uplink scheduling is not used for a schedule for retransmission of the first message; or Receive the DCI including the uplink scheduling from the access network device, and determine the uplink when the number of the HARQ process included in the uplink scheduling is different from the number of the HARQ process used when the first message is transmitted the schedule is not a schedule for retransmission of the first message; or After receiving the DCI including the uplink scheduling from the access network device, in the case that the indication information carried by the DCI indicates that the uplink scheduling is not the scheduling for message 3, determine that the uplink scheduling is not used for retransmission of all messages. Describe the scheduling of the first message. 42. The apparatus according to claim 40 or 41, wherein the determining unit is further configured to determine that the conflict is resolved successfully 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. 43. A communication device, characterized in that it comprises: Hardware associated with program instructions for performing the method steps of any of claims 1-21. 44. 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 implemented.

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