CN111479332B

CN111479332B - Communication method and device

Info

Publication number: CN111479332B
Application number: CN201910083032.5A
Authority: CN
Inventors: 李秉肇; 单宝堃; 许斌; 陈磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2022-12-27
Anticipated expiration: 2039-01-24
Also published as: CN111479332A; WO2020151534A1

Abstract

The embodiment of the invention discloses a communication method and equipment, comprising 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

Communication method and device

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a communication method and equipment.

Background

In the communication field, a terminal device needs to establish a Radio Resource Control (RRC) layer connection with an access network device in order to perform communication. At present, the RRC connection between the terminal device and the access network device needs to be completed through multiple information interactions. However, in a case where the distance between the terminal device and the access network device is large, time required for one information interaction between the terminal device and the access network device is long, and thus, time required for establishing the RRC connection is long, so that communication efficiency is reduced.

Disclosure of Invention

The embodiment of the invention discloses a communication method and equipment, which are used for improving the communication efficiency.

A first aspect discloses a communication method, which receives configuration information including RRC establishment request configuration information from an access network device, generates an RRC establishment request according to the RRC establishment request configuration information, and sends 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 a Non Access Stratum (NAS) signaling, where the first identifier is an identifier of the terminal device, and the second identifier is an identifier of the core network device. Since the RRC establishment request carries not only the identifier of the terminal device but also the identifier of the core network device and/or the NAS signaling, the number of interactions between the terminal device and the access network device can be reduced, so as to reduce the time required for establishing the RRC connection, thereby improving the communication efficiency.

In an embodiment, the configuration information broadcasted from the access network device system may be received, and a Random Access Response (RAR) including the configuration information may also be received from the access network device. With this configuration information, the access network device can control when the terminal device uses the modified RRC setup request in order to control the terminal device to perform fast access in case the access network device needs fast access by the terminal device and the resources are sufficient. In addition, the terminal equipment can know the size or the number of the RRC connection establishment messages which can be sent before the RRC establishment request is generated through the transmission mode of the system broadcast, so that the terminal can generate the RRC establishment request in advance.

In one embodiment, the RRC establishment request configuration information may indicate the number of time units, and N RRC establishment request messages may be determined according to the RRC establishment request configuration information, where each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier, or NAS signaling, N is an integer greater than or equal to 2, and the N RRC establishment request messages are carried on the M time units; or determining an RRC setup request message according to the RRC setup request configuration information, where the 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. Therefore, the terminal device can generate and carry the 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 the 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 an embodiment, the RRC establishment request configuration information is used to indicate the number of RRC establishment request messages, and N RRC establishment request messages may be determined according to the RRC establishment request configuration information, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages. Therefore, the terminal device can generate and carry the RRC establishment request carrying a plurality of information according to the number of RRC establishment request messages indicated by the configuration information.

In one embodiment, the RRC establishment request configuration information is used to indicate the size of the information amount carried by the RRC establishment request message, and an RRC establishment request message may be determined according to the RRC establishment request configuration information, where the size of the information amount carried by the RRC establishment request message is smaller than or equal to the size of the information amount. Or determining N RRC establishment request messages according to the RRC establishment request configuration information, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, N is an integer greater than or equal to 2, and a size of an information amount carried by the N RRC establishment request messages is less than or equal to the size of the information amount. Therefore, the terminal device may generate and carry the RRC establishment request carrying multiple pieces of information according to the information amount indicated by the configuration information.

In one embodiment, the configuration information may further include Signal Radio Bearer (SRB) 1 setup information, and may receive a collision resolution message from the access network device and set up SRB1 according to the SRB1 setup information. Since the configuration information includes SRB1 setup information, after determining that the conflict resolution is successful, the SRB1 may be set up according to the SRB1 setup information, so that the terminal device and the access network device may transmit information through the SRB1. Therefore, the access network equipment does not need to send a signaling to the terminal equipment for establishing the SRB1 again, and the time delay of the terminal equipment for establishing the SRB1 can be reduced.

In an 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, in the case that all or part of the RRC establishment request fails to be transmitted, the terminal device may resend the failed part to the access network device according to the indication of the access network device, so as not to affect the establishment of the RRC connection.

In an embodiment, the third identifier may be a number of an RRC establishment request message that needs to be retransmitted, or a number of a time unit corresponding to the information that needs to be retransmitted. In the case that the RRC establishment request includes a plurality of RRC establishment request messages, or the RRC establishment request is carried in a plurality of time units, the information that needs to be retransmitted may be directly identified by the number of the RRC establishment request message or the number of the time unit in which the transmission fails.

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

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

In one embodiment, the configuration information may be sent to the terminal device in a system broadcast manner, or a RAR message including the configuration information may be sent to the terminal device. With this configuration information, the access network device can control when the terminal device uses the modified RRC setup request in order to control the terminal device to perform fast access in case the access network device needs fast access by the terminal device and the resources are sufficient. In addition, the terminal equipment can know the size or the number of the RRC connection establishment messages which can be sent before the RRC establishment request is generated through the transmission mode of the system broadcast, so that the terminal can generate the RRC establishment request in advance.

In an embodiment, the RRC establishment request configuration information is used to indicate the number of time units, N RRC establishment request messages or one RRC establishment request message from the terminal device may be received through M time units, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, 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. Therefore, the access network device may 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 the 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 an embodiment, the RRC establishment request configuration information is used to indicate the number of RRC establishment request messages, and N RRC establishment request messages from the terminal device may be received, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages. As can be seen, the access network device may receive, according to the number of RRC establishment request messages indicated by the configuration information, an RRC establishment request that is sent by the terminal device and carries multiple pieces of information.

In one embodiment, the RRC establishment request configuration information is used to indicate the size of the information amount carried by the RRC establishment request message, and may receive an RRC establishment request message from the terminal device, where the size of the information amount carried by the RRC establishment request message is smaller than or equal to the size of the information amount; or N RRC establishment request messages from the terminal device may be received, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, N is an integer greater than or equal to 2, and a size of an information amount carried by the N RRC establishment request messages is smaller than or equal to the size of the information amount. Therefore, the access network device may receive, according to the information amount indicated by the configuration information, an RRC establishment request that is sent by the terminal device and carries a plurality of pieces of information.

In one embodiment, the configuration information may further include SRB1 setup information, and a conflict resolution message may be sent to the terminal device, where the conflict resolution message instructs the terminal device to setup SRB1 according to the SRB1 setup information. Since the configuration information includes SRB1 setup information, after determining that the conflict resolution is successful, the terminal device may set up SRB1 according to the SRB1 setup information, so that the terminal device and the access network device may transmit information through SRB1. Therefore, the access network equipment does not need to send the signaling to the terminal equipment for establishing the SRB1 again, and the time delay for the terminal equipment to establish the SRB1 can be reduced.

In an embodiment, a retransmission indication 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 case of a failure of all or part of the transmission of the RRC establishment request, the access network device may instruct the terminal device to resend the failed part of the transmission to the access network device so as not to affect the establishment of the RRC connection.

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

A third aspect discloses a communication method, which may receive an 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, start a conflict resolution timer while sending the first message, and determine that conflict resolution fails when the conflict resolution timer meets a first condition before timeout. The first condition is that a 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 time-out of the conflict resolution timer is used for retransmitting the information sent to the access network device last time, the terminal device can be prevented from blindly retransmitting the information, and the transmission of other information can be prevented from being influenced. Further, since the conflict resolution failure can be determined before the conflict resolution timer times out without waiting until the conflict resolution timer times out, the processing efficiency can be improved.

In an embodiment, DCI including uplink scheduling may be received from an access network device, and when a transport block value corresponding to the uplink scheduling is not equal to a primary transport block length of a first message, it is determined that the uplink scheduling is not a scheduling for retransmitting the first message; or receiving DCI including uplink scheduling from the access network device, and determining that the uplink scheduling is not scheduling for retransmitting the first message when a number of a hybrid automatic repeat request (HARQ) process included in the uplink scheduling is different from a number of a HARQ process used when the first message is transmitted; the method may also be that DCI including uplink scheduling from the access network device is received, and it is determined that the uplink scheduling is not the scheduling for retransmitting the first message when the indication information carried in the DCI indicates that the uplink scheduling is not the scheduling for the message 3.

In one embodiment, the conflict resolution may be determined to be successful if the second condition is met before the conflict resolution timer expires. The second condition is that a conflict resolution message is received from the access network device and that 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 comprising means for performing the communication method disclosed in any of the embodiments of the first aspect or the first aspect, or comprising means for performing the communication method disclosed in any of the embodiments of the second aspect or the second aspect, or comprising means for performing the communication method disclosed in any of the embodiments of the third aspect or the third aspect.

A fifth aspect discloses a communication apparatus, which may be a terminal device or a chip within a terminal device. The communication device may comprise a processor, the processor and a memory being coupled to each other, the memory being configured to store computer programs or instructions, the processor being configured to execute the computer programs or instructions stored in the memory, such that the communication device performs the communication method disclosed in the first aspect or any of the embodiments of the first aspect.

A sixth aspect discloses a communication apparatus, which may be an access network device or a chip within an access network device. The communication device may comprise a processor, the processor and a memory being coupled to each other, the memory being adapted to store a computer program or instructions, the processor being adapted to execute the computer program or instructions stored in the memory such that the communication device performs the communication method as disclosed in any of the embodiments of the second aspect or the second aspect.

A seventh aspect discloses a communication apparatus, which may be a terminal device or a chip within a terminal device. The communication device may comprise a processor, the processor and a memory being coupled to each other, the memory being adapted to store computer programs or instructions, the processor being adapted to execute the computer programs or instructions stored in the memory such that the communication device performs the units of the communication method disclosed in any of the embodiments of the third aspect or the third aspect.

An eighth aspect discloses a readable storage medium having stored thereon a program which, when run, implements the communication method as disclosed in the first aspect or any one of the embodiments of the first aspect, or implements the communication method as disclosed in the second aspect or any one of the embodiments of the second aspect, or implements the communication method as disclosed in any one of the embodiments of the third aspect.

A ninth aspect discloses a communication system comprising the communication apparatus of the fifth aspect and the communication apparatus of the sixth aspect.

Drawings

FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention;

fig. 2 is a schematic flowchart of RRC connection establishment according to an embodiment of the present invention;

fig. 3 is a schematic flowchart of a communication method according to an embodiment of the present invention;

FIG. 4 is a flow chart illustrating another communication method according to an embodiment of the present invention;

FIG. 5 is a flow chart illustrating another communication method disclosed in the embodiments of the present invention;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

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

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

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

Detailed Description

The embodiment of the invention discloses a communication method and equipment, which are used for improving the communication efficiency. The following are detailed descriptions.

In order to better understand a communication method and device disclosed in the embodiments of the present invention, a network architecture used in the embodiments of the present invention is described below. Referring to fig. 1, fig. 1 is a schematic diagram of a network architecture according to 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 core network devices 3. In the satellite communication architecture, the access network device 2 may include a base station and a satellite, and the base station may be disposed on the satellite entirely or only a radio transceiver unit may be disposed on the satellite.

The communication between the terminal device 1 and the access network device 2 includes uplink (i.e., terminal device 1 to access network device 2) communication and downlink (i.e., access network device 2 to terminal device 1) communication. In the uplink communication, the terminal device 1 is configured to send an uplink physical channel and an uplink signal to the access network device 2. The access network device 2 is configured 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 (RACH), a Physical Uplink Control Channel (PUCCH), a 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 signal (PTRS), and the like.

In the downlink communication, the access network device 2 is configured to send a downlink physical channel and a downlink signal to the terminal device 1. The terminal device 1 is configured to receive a downlink physical channel and a downlink signal from the access network device 2.

The downlink physical channel may include a Physical Broadcast Channel (PBCH), a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), and the like.

The downlink signal may include a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), a PDCCH DMRS, a PDSCH DMRS, a downlink PTRS, a channel state information reference signal (CSI-RS), a cell signal (CRS), a time domain or frequency domain Tracking Reference Signal (TRS), a Positioning Reference Signal (PRS), and the like.

The terminal apparatus 1 may be a User Equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent, a UE device, or the like. An 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 handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved Public Land Mobile Network (PLMN) network, etc.

The access network device 2 is a device capable of communicating 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 communications (GSM) or Code Division Multiple Access (CDMA) network, a base station Node (NB) in a Wideband Code Division Multiple Access (WCDMA), an evolved Node (NB) in a Long Term Evolution (LTE) (eNB or eNodeB), a radio controller in a Cloud Radio Access Network (CRAN) scenario, a base station device in a future wearable 5G network or an access network device in a future evolved PLMN network, or a vehicle-mounted device.

The core network device 3 may be a Core Network (CN) device, and the core network device corresponds to different devices in different systems. In 3G, the Serving GPRS Support Node (SGSN) and/or the Gateway GPRS Support Node (GGSN) may correspond to a General Packet Radio Service (GPRS). The 4G may correspond to a Mobility Management Entity (MME) and/or a serving gateway (S-GW). In 5G, access and mobility management function (AMF), session Management Function (SMF), or User Plane Function (UPF) may be corresponded.

In order to better understand a communication method and device disclosed in the embodiments of the present invention, an application scenario of the embodiments of the present invention is described below. RRC is a protocol entity that manages radio resources. The terminal equipment and the access network equipment realize the establishment, modification, release and the like of Radio Bearers (RBs) through the interaction of RRC signaling. An RB may be understood as a logical channel including a signaling radio bearer SRB and a Data Radio Bearer (DRB), where SRB is a signaling channel and DRB is a data channel. SRBs include SRB0, SRB1, and SRB2.SRB0 is used to transmit RRC messages using a Common Control Channel (CCCH). SRB1 is used to transmit RRC messages or NAS messages using a Downlink Control Channel (DCCH). SRB2 is used to transport NAS messages using DCCH. The standard specifies that without establishing SRB0, the terminal device can obtain the configuration and resources of SRB0 by agreement in the RRC idle (idle) state, and can use them directly if necessary. The service initiation process in the system is to establish SRB1 through signaling transmission on SRB0, after SRB1 is established, the terminal device enters into RRC connected (connected) state, then SRB2 is established through signaling transmission of SRB1 to transmit NAS signaling, and DRB is established through signaling transmission of SRB1 to transmit user data. During the service process, the management is performed through the SRB1, and after the service is finished, the signaling transmitted on the SRB1 can release all DRBs and SRBs, so that the terminal device enters an RRC idle state. An RRC setup (RRCSetup) message for establishing SRB1 is transmitted through SRB 0. An RRC reconfiguration (RRCReconfiguration) message for modifying the RRC connection is transmitted through the SRB1 in order to establish the SRB2 and the DRB.

Referring to fig. 2, fig. 2 is a flowchart illustrating RRC connection establishment according to an embodiment of the present invention. As shown in fig. 2, in a case that the terminal device needs to send information, the terminal device may send a message (message) 1 carrying an identifier of the terminal device, that is, msg1, that is, a preamble message, to the access network device through SRB 0. After receiving msg1 from the terminal device, the access network device configures a first resource for the terminal device, and then sends a message 2 including the first resource and a Random Access Preamble (RAP) -ID, that is, msg2, that is, an RAR message to the terminal device. After receiving msg2, the terminal equipment judges whether RAP-ID is matched with msg1, and under the condition that RAP-ID is matched with msg1, the terminal equipment shows that msg2 is msg2 sent to the terminal equipment, and then sends a message 3 carrying the identifier of the terminal equipment, namely msg3, namely RRC establishment request to the access network equipment by using a first resource. After receiving msg3 from the terminal device, the access network device sends message 4, namely msg4, namely RRC establishment message, to the terminal device, and sends message 4 to the terminal device and simultaneously sends a conflict resolution message to the terminal device. After receiving the msg4 and the conflict resolution message from the access network device, the terminal device may send a confirmation message or a Scheduling Request (SR) to the access network device when determining that the conflict resolution is successful and the RRC establishment message is successfully received. After receiving the acknowledgement message or SR from the terminal device, the access network device allocates a 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 the SRB1 according to the SRB1 establishment information included in the RRC establishment message, enters a connection state from an idle state, and then sends an RRC establishment complete message carrying the identifier of the core network device and the NAS signaling to the access network device through the second resource. After receiving the RRC establishment complete MESSAGE from the terminal device, the access network device sends an initialization terminal device MESSAGE (INITIAL UE MESSAGE) including NAS signaling to the core network device identified by the identifier of the core network device. After receiving an initialization terminal device (initialization UE MESSAGE) MESSAGE from the access network device, the core network device sends an initialization CONTEXT SETUP REQUEST (initialization CONTEXT 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 (rrcreeconfiguration) message to the terminal device. After receiving the security mode command and the RRC reconfiguration message from the access network device, the terminal device performs security activation according to the security mode command, establishes an SRB2 and a DRB according to the RRC reconfiguration message, and then sends a security mode complete (SecurityModeComplete) message and an RRC reconfiguration complete (RRCReconfigurationComplete) message to the access network device. After receiving the security mode completion message and the RRC reconfiguration completion message from the terminal device, the access network device sends an initialization CONTEXT SETUP response (INITIAL CONTEXT SETUP response) to the core network device, indicating that the RRC SETUP is completed. The identifier of the terminal device may be an international mobile subscriber identity number (IMSI) or a serving-temporary mobile subscriber identity (S-TMSI).

Referring to fig. 3, fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present invention based on the network architecture shown in fig. 1. As shown in fig. 3, the communication method may include the following steps.

301. And the access network equipment sends the configuration information to the terminal equipment.

The access network device may send configuration information including RRC establishment request configuration information to the terminal device, may send the configuration information to the terminal device in a broadcast manner, and may also send an RAR message including the configuration information and a RAP-ID to the terminal device. The configuration information may further include SRB1 setup information, and the configuration information may further include a 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 manner may be generation.

Optionally, in a case that the terminal device needs to send information, the terminal device may send an authorization request to the access network device through the SRB0, where the authorization request may be implemented through a preamble message, or may be implemented through other messages or other manners, and this embodiment is not limited herein. After receiving the authorization request from the terminal device, the access network device may send the configuration information to the terminal through an RAR message including a RAP-ID.

302. And the terminal equipment generates an RRC establishment request according to the RRC establishment request configuration information.

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

Specifically, when the terminal device receives an RAR message from the access network device, it may first determine whether an RAP-ID included in the RAR message matches the authorization request, and when it is determined that the RAP-ID matches the authorization request, determine that the received RAR message is the RAR message sent to the terminal device, and then generate an RRC establishment request according to RRC establishment request configuration information included in the RAR message, that is, configure the RRC establishment request according to the RRC establishment request configuration information. And under the condition that the terminal equipment receives the configuration information from the system information broadcast, generating an RRC establishment request according to the RRC establishment request configuration information, namely configuring the RRC establishment request according to the RRC establishment request configuration information.

The RRC establishment request may carry a first identifier, and the RRC establishment request may also carry at least one of a second identifier and NAS signaling, where the first identifier is an identifier of the terminal device, and the second identifier is an identifier of the core network device. The first identifier may be a Temporary Mobile Subscriber Identity (TMSI), or may be another identifier capable of uniquely identifying the terminal device. The second identifier is an identifier of a core network device registered by the terminal device. The RRC establishment request may also carry Public Land Mobile Network (PLMN) information, and the RRC establishment request may also carry Buffer Status Report (BSR) information. The RRC setup request may include one RRC setup request message or N RRC setup request messages, where N is an integer greater than 1.

The RRC establishment request configuration information may indicate the number of time units, and may explicitly indicate the number of time units, for example, the RRC establishment request configuration information is the number of time units. The number of time units may also be implicitly indicated, for example, the RRC establishment request configuration information may be used to indicate the number of time units, may also be an index of the number of time units, and may also be an index of multiple time units. The number of time units 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 establishment request messages may be determined according to the RRC establishment request configuration information, each RRC establishment request message in the N RRC establishment request messages may carry at least one of the first identifier, the second identifier, or NAS signaling, and the N RRC establishment request messages are carried on the M time units. The size of the information amount carried by each RRC establishment request message in the N RRC establishment request messages may be greater than, equal to, or less than the maximum information amount that can be carried by a time unit, where one RRC establishment request message carries one piece of information, or multiple RRC establishment request messages carry one piece of information. An RRC establishment request message may also be determined according to the RRC establishment request configuration information, and the RRC establishment request message is carried on the 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 establishment request configuration information may indicate that the number of time units is 3, the terminal device may determine 3 RRC establishment request messages, a first RRC establishment request message may carry the first identifier, a second RRC establishment request message may carry the second identifier, a third RRC establishment request message may carry NAS signaling, and the terminal device may map the 3 RRC establishment request messages to the 3 time units, respectively, and send the 3 RRC establishment request messages. For example: the RRC establishment request configuration information may indicate that the number of time units is 3, the terminal determines 1 RRC establishment request message, where the RRC establishment request message may carry the first identifier, the second identifier, and NAS signaling, and the terminal device may map the RRC establishment request message to 3 time units to send the RRC establishment request message. The time unit may be a slot (slot), a symbol, a subframe, a frame, or other time units, and this embodiment is not limited.

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

The RRC establishment request configuration information may indicate a size of information carried by the RRC establishment request message, and may explicitly indicate the size of information carried by the RRC establishment request message, for example, the RRC establishment request configuration information is a specific value, such as 48 bits or 96 bits, of the size of information carried by the RRC establishment request message. The information amount carried by the RRC establishment request message may also be implicitly indicated, for example, the RRC establishment request configuration information may indicate a long RRC establishment request message or a short RRC establishment request message, or may be an index of the information amount carried by the RRC establishment request message. The size of the information amount carried by the RRC establishment request message may be the maximum value of the size of the RRC establishment request message allowed to be established by the terminal device, or may be the size of the RRC establishment request message allowed to be established by the terminal device. An RRC establishment request message may be determined according to the RRC establishment request configuration information, where a size of an information amount carried by the RRC establishment request message is smaller than or equal to an information amount size carried by the RRC establishment request message indicated by the RRC establishment request configuration information. Or determining N RRC establishment request messages according to the RRC establishment request configuration information, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or the NAS signaling, N is an integer greater than or equal to 2, and a size of an information amount carried by the N RRC establishment request messages is smaller than or equal to the size of the information amount. Specifically, for example: the RRC establishment request configuration information may indicate that the terminal device employs a long RRC establishment request message, so that the terminal device may determine 3 RRC establishment request messages, where a first RRC establishment request message may carry the first identifier, a second RRC establishment message may carry the second identifier, and a third RRC establishment message may carry the NAS signaling. For example: the RRC setup request configuration information may instruct the terminal device to use a short RRC setup request message, and the terminal device may determine 1 RRC setup request message, where the RRC setup request message may include the first identifier, the second identifier, and NAS signaling.

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

The terminal device sends the RRC establishment request to the access network device after generating the RRC establishment request according to the RRC establishment request configuration information, and the RRC establishment request can be sent 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. Under the condition that the RRC establishment request configuration information is used to indicate the number of time units, N RRC establishment request messages or one RRC establishment request message from the terminal device may be received through M time units, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or the 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.

Under the condition that the RRC establishment request configuration information is used to indicate the number of RRC establishment request messages, N RRC establishment request messages from the terminal device may be received, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, and N is an integer greater than or equal to 2 and less than or equal to the number of RRC establishment request messages.

In a case where the RRC establishment request configuration information indicates a size of an information amount carried by the RRC establishment request message, an RRC establishment request message from the terminal device may be received, where the size of the information amount carried by the RRC establishment request message is smaller than or equal to the size of the information amount. Or N RRC establishment request messages from the terminal device may be received, where each RRC establishment request message in the N RRC establishment request messages carries at least one of the first identifier, the second identifier, or NAS signaling, N is an integer greater than or equal to 2, and a size of an information amount carried by the N RRC establishment request messages is smaller than or equal to the size of the information amount.

Referring to fig. 4, based on the network architecture shown in fig. 1, fig. 4 is a schematic flow chart of another communication method disclosed in the embodiment of the present invention. As shown in fig. 4, the communication method may include the following steps.

401. And the access network equipment sends the configuration information to the terminal equipment.

Step 401 is the same as step 301, and please refer to step 301 for detailed description, which is not described herein again.

402. And the terminal equipment generates an RRC establishment request according to the RRC establishment request configuration information.

Step 402 is the same as step 302, and the detailed description refers to step 302, which is not repeated herein.

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

Step 403 is the same as step 303, and please refer to step 303 for detailed description, which is not described herein again.

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, and determine that the RRC establishment request of the terminal device is received. In case the RRC establishment request reception is successful, there is no need to send a retransmission indication to the terminal device. And under the condition that the RRC establishment request fails to be received, a retransmission instruction carrying the third identifier is required to be sent to the terminal equipment. At this time, the collision resolution message and the retransmission instruction may be generated into one data packet and transmitted to the terminal device. Specifically, the Data packet may be a Media Access Control Address (MAC) Protocol Data Unit (PDU), and the collision resolution message and the retransmission indication may be different parts in the MAC PDU. Optionally, the third identifier may be a number of the RRC establishment request message that needs to be retransmitted, and may also be a number of a time unit corresponding to the information that needs to be retransmitted. Specifically, for example: the terminal device sends 3 RRC establishment request messages, the access network device receives the first RRC establishment request message and the third RRC establishment request message, and the access network device may set the third identifier as the identifier of the second RRC establishment request message without receiving the second RRC establishment request message. And after the terminal equipment judges that the MAC PDU is a message sent to the terminal equipment according to the conflict resolution message, carrying out retransmission judgment according to a retransmission instruction in the MAC PDU, and judging that a second RRC establishment request message needs to be retransmitted according to the retransmission judgment.

405. And establishing the SRB1 according to the SRB1 establishment information.

After receiving the conflict resolution message from the access network device, the terminal device may first determine whether the identifier carried in the conflict resolution message is the same as the identifier of the terminal device, determine that the conflict resolution is successful if the identifier carried in the conflict resolution message is the same as the identifier of the terminal device, and establish the SRB1 according to the SRB1 establishment information. In the case where it is determined that the difference is not the same, it is determined that the conflict resolution is failed, and step 401 may be re-executed.

After receiving the retransmission instruction, the terminal device may retransmit the information corresponding to the third identifier to the access network device when it is determined that the conflict resolution is successful.

406. And the access network equipment sends NAS signaling to the core network equipment identified by the second identification.

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

407. The core network device sends a context setup 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 may be implemented via an INITIAL CONTEXT SETUP REQUEST message, or may be implemented via other messages or in other ways.

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

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

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

410. The access network equipment sends a context establishment completion message to the core network equipment.

For detailed descriptions of steps 408-410, please refer to the corresponding description of fig. 2, which is not repeated herein.

In order to better understand a communication method and device disclosed in the embodiments of the present invention, an application scenario of the embodiments of the present invention is described below. In the existing network, after the access network device sends the RRC establishment message to the terminal device, it is necessary to wait for the terminal device to send the SR before sending the authorization of the RRC establishment completion message to the terminal device, and then the terminal device can send the RRC establishment completion message according to the authorization. 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, the access network device sends a grant message for scheduling the RRC setup complete message to the terminal device. However, in the case where the terminal device does not receive the collision resolution message and the RRC setup message transmitted by the access network device, but receives the grant message for scheduling the RRC setup complete message, the terminal device may mistakenly assume that this grant message is a message for scheduling retransmission of message 3.

Referring to fig. 5, based on the network architecture shown in fig. 1, fig. 5 is a schematic flow chart of another communication method according to an embodiment of the present invention. As shown in fig. 5, the communication method may include the following steps.

501. And the access network equipment sends an RAR message carrying the uplink authorization information to the terminal equipment.

In a case that the terminal device needs to send information, the terminal device may send an authorization request to the access network device, where the authorization request may be implemented by a preamble message, or may be implemented by other messages or other manners, and this embodiment is not limited herein.

After receiving the authorization request from the terminal device, the access network device may send an RAR message carrying the uplink authorization information to the terminal device.

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

After receiving the configuration information from the terminal equipment, the terminal equipment judges whether RAP-ID included in the RAR message is matched with the authorization request, determines that the received RAR message is the RAR message sent to the terminal equipment under the condition that the RAP-ID is matched with the authorization request, and then sends a first message to the access network equipment through a resource corresponding to the uplink authorization information. The first message may be an RRC establishment request, or may be another message, which is not limited in this embodiment.

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

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

504. And the terminal equipment determines that the conflict resolution fails under the condition that the first condition is met before the conflict resolution timer is overtime.

The terminal equipment starts a conflict resolution timer while sending the first message, and determines that conflict resolution fails under the condition that the conflict resolution timer meets a first condition before being overtime. The first condition is that DCI including uplink scheduling is received from the access network device, and the uplink scheduling is not scheduling for retransmitting the first message. By judging the first condition, the terminal can avoid the wrong retransmission of the first message, and the wrong retransmission of the first message can cause interference to messages transmitted by other terminals, so that the interference to other terminal equipment can be reduced.

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

In the case where the conflict resolution timer times out, it is determined that conflict resolution has failed. The terminal device may re-perform step 501.

505. And the terminal equipment determines that the conflict resolution is successful under the condition that the second condition is met before the conflict resolution timer is overtime.

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

Based on the network architecture shown in fig. 1 and the same concept of the communication method in the foregoing embodiment, please refer to fig. 6, and fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present invention. The communication apparatus can be applied to the communication methods shown in fig. 3 and 4. As shown in fig. 6, the communication apparatus 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;

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

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

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

receiving configuration information broadcasted from access network equipment; or alternatively

And receiving an RAR message from the access network equipment, wherein the RAR message comprises configuration information.

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

the generating unit 602 is specifically configured to:

determining N RRC establishment request messages according to the RRC establishment request configuration information, wherein each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier or NAS signaling, N is an integer greater than or equal to 2, and the N RRC establishment request messages are borne on M time units; or

Determining an RRC establishment request message according to the RRC establishment request configuration information, wherein the RRC establishment request message is borne on the M time units;

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

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

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

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

the generating unit 602 is specifically configured to:

determining an RRC establishment request message according to the RRC establishment request configuration information, wherein the size of the information quantity borne by the RRC establishment request message is smaller than or equal to the size of the information quantity; or

Determining N RRC establishment request messages according to the RRC establishment request configuration information, wherein each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier or NAS signaling, N is an integer greater than or equal to 2, and the size of the information quantity carried by the N RRC establishment request messages is smaller than or equal to the size of the information quantity.

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

the communication apparatus may further include:

a establishing unit 604, configured to establish SRB1 according to the SRB1 establishing 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 the third identifier;

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

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

As a possible implementation, the receiving unit 601 receives the retransmission indication from the access network device, including:

receiving a data packet from the access network device, the data packet including a collision resolution message and a retransmission indication.

More detailed descriptions about the receiving unit 601, the generating unit 602, the sending unit 603, and the establishing unit 604 may be directly obtained by referring to the related descriptions of the terminal device in the method embodiments shown in fig. 3 and fig. 4, which are not described herein again.

Referring to fig. 7, based on the network architecture shown in fig. 1 and the same concept of the communication method in the foregoing embodiment, fig. 7 is a schematic structural diagram of another communication device disclosed in the embodiment of the present invention. The communication apparatus can be applied to the communication methods shown in fig. 3 and 4. As shown in fig. 7, the communication apparatus may include a processing unit 701 and a transceiver unit 702, where the processing unit 701 is configured to:

the control transceiver unit 702 sends 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;

the control transceiver unit 702 receives an RRC establishment request from a 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 and NAS signaling, where the first identifier is an identifier of the terminal device, and the second identifier is an identifier of a core network device.

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

sending configuration information to the terminal equipment in a broadcasting mode; or

And sending an RAR message to the terminal equipment, wherein the RAR message comprises configuration information.

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

the receiving and sending unit 702 receiving the RRC establishment request from the terminal device includes:

receiving N RRC establishment request messages or one RRC establishment request message from the terminal equipment through M time units, wherein each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier or NAS signaling, M is an integer which is greater than or equal to 2 and less than or equal to the number of the time units, and N is an integer which is greater than or equal to 2.

receiving N RRC establishment request messages from the terminal equipment, wherein each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier or NAS signaling, and N is an integer which is greater than or equal to 2 and less than or equal to the number of the RRC establishment request messages.

receiving an RRC establishment request message from the terminal equipment, wherein the size of the information quantity borne by the RRC establishment request message is smaller than or equal to the size of the information quantity; or

Receiving N RRC establishment request messages from the terminal equipment, wherein each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier or NAS signaling, N is an integer greater than or equal to 2, and the size of the information quantity carried by the N RRC establishment request messages is smaller than or equal to the size of the information quantity.

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

the control transceiving unit 702 sends a conflict resolution message to the terminal device, the conflict resolution message instructing the terminal device to establish the SRB1 according to the SRB1 establishment information.

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

the control transceiving unit 702 sends a retransmission indication to the terminal device, and the retransmission indication carries a third identifier;

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

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

and sending a data packet to the terminal equipment, wherein the data packet comprises the conflict resolution message and the retransmission indication.

The more detailed description about the processing unit 701 and the transceiver unit 702 may be directly obtained by referring to the related description of the access network device in the method embodiments shown in fig. 3 and fig. 4, which is not described herein again.

Based on the same concept of the network architecture shown in fig. 1 and the communication method in the foregoing embodiment, please refer to fig. 8, and fig. 8 is a schematic structural diagram of another communication apparatus disclosed in the embodiment of the present invention. The communication apparatus can be applied to the communication method shown in fig. 5. As shown in fig. 8, the communication apparatus 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;

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

a starting unit 803 configured to start a collision resolution timer while the transmitting unit 802 transmits the first message;

a determining unit 804 configured to determine that the conflict resolution fails in a case where a first condition is satisfied before the conflict resolution timer started by the starting unit 803 times out;

the first condition is:

receiving DCI including uplink scheduling from the access network device, wherein the uplink scheduling is not scheduling for retransmitting the first message.

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

receiving DCI including uplink scheduling from access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that a transmission block value corresponding to the uplink scheduling is not equal to a primary transmission block length of the first message; or alternatively

Receiving DCI including uplink scheduling from access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that the number of the HARQ process included in the uplink scheduling is different from the number of the HARQ process used in the first message transmission; or alternatively

Receiving DCI including uplink scheduling from access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting a first message under the condition that indication information carried by the DCI indicates that the uplink scheduling is not scheduling for the message 3.

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

the second condition is that:

a conflict resolution message is received from the access network device, and a portion of the information in the first message that matches the conflict resolution information included in the conflict resolution message is present.

More detailed descriptions about the receiving unit 801, the sending unit 802, the starting unit 803, and the determining unit 804 may be directly obtained by referring to the description about the terminal device in the embodiment of the method shown in fig. 5, which is not repeated herein.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention. As shown in fig. 9, the communication device may include a processor 901, a memory 902, a transceiver 903, and a bus 904. The processor 901 may be a general-purpose Central Processing Unit (CPU), multiple CPUs, a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present invention. The Memory 902 may be, but is not limited to, a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 902 may be separate or integrated with the processor 901. The bus 904 is connected to the processor 901. Memory 902 bus 904 may include a path that conveys information between the aforementioned components. The transceiver 903 may be a transceiving antenna, or may be other transceiving devices, such as a radio frequency transceiver, or a signal transceiving interface. Wherein:

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

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

a set of program codes is 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:

generating an RRC establishment request according to the RRC establishment request configuration information, wherein 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 identifier is an identifier of the terminal equipment, and the second identifier is an identifier of the core network equipment;

the transceiver 903 is further configured to send an RRC establishment request to the access network device.

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

receiving configuration information broadcasted from access network equipment; or

the processor 901 generates the RRC establishment request according to the RRC establishment request configuration information, including:

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

determining an RRC establishment request message according to the RRC establishment request configuration information, wherein the size of the information quantity carried by the RRC establishment request message is smaller than or equal to the size of the information quantity; or alternatively

As a possible implementation manner, the configuration information further includes SRB1 setup information, and the transceiver 903 is further configured to receive a conflict resolution message from the access network device;

processor 901 is also configured to invoke program code stored in memory 902 to perform the following:

and establishing the SRB1 according to the SRB1 establishing information.

As a possible implementation, the transceiver 903 is further configured to:

receiving a retransmission instruction from the access network equipment, wherein the retransmission instruction carries a third identifier;

and retransmitting the information corresponding to the third identifier to the access network equipment.

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

a data packet is received from an access network device, the data packet including a collision resolution message and a retransmission indication.

The processor 901 and the memory 902 in the terminal may execute steps 302, 402, and 405, and the step of receiving the configuration information by the terminal device side, the step of receiving the conflict resolution information by the terminal device side, the steps 303, 403, and 404, the step of receiving the security mode instruction and the RRC reconfiguration message by the terminal device side, and the step 409 in steps 301 and 401 may be executed 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 terminal device or the chip in the terminal device may also be configured to execute various methods executed by the terminal device in the embodiments of the methods in fig. 3 to fig. 4, which are not described again.

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

the memory 902 has stored therein a set of program codes, and the processor 901 is configured to invoke the program codes stored in the memory 902 to control the transceiver 903 to perform the following operations:

sending configuration information to the terminal equipment, wherein the configuration information comprises RRC establishment request configuration information which is used for configuring the RRC establishment request;

receiving an RRC establishment request from the terminal equipment, wherein 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 identifier is an identifier of the terminal equipment, and the second identifier is an identifier of the core network equipment.

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

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

receiving N RRC establishment request messages or one RRC establishment request message from the terminal equipment through M time units, wherein each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier or NAS signaling, M is an integer which is larger than or equal to 2 and smaller than or equal to the number of the time units, and N is an integer which is larger than or equal to 2.

receiving an RRC establishment request message from the terminal equipment, wherein the size of the information quantity carried by the RRC establishment request message is smaller than or equal to the size of the information quantity; or alternatively

As a possible implementation, the configuration information further includes SRB1 setup 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:

and sending a conflict resolution message to the terminal equipment, wherein the conflict resolution message instructs the terminal equipment to establish the SRB1 according to the SRB1 establishment information.

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

sending a retransmission instruction to the terminal equipment, wherein the retransmission instruction carries a third identifier;

and receiving information corresponding to the third identifier from the terminal equipment.

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

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

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

The access network device or the chip in the access network device may also be configured to execute various methods executed by the access network device in the embodiments of the methods in fig. 3 to fig. 4, which are not described again.

In yet another embodiment, the communication device may be a terminal device or a chip within a 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 a first message to the access network device through a resource corresponding to the uplink authorization information;

the memory 902 has a set of program codes stored therein, and the processor 901 is configured to call the program codes stored in the memory 902 to perform the following operations:

starting a conflict resolution timer while transmitting the first message;

determining that conflict resolution fails if a first condition is met before a conflict resolution timer times out;

the first condition is:

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

receiving DCI including uplink scheduling from access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that a transmission block value corresponding to the uplink scheduling is not equal to a primary transmission block length of the first message; or

Receiving DCI including uplink scheduling from the access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that indication information carried by the DCI indicates that the uplink scheduling is not scheduling for the message 3.

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

determining that the conflict resolution is successful if a second condition is met before the conflict resolution timer times out;

the second condition is:

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

The starting unit 803 and the determining unit 804 may be implemented by the processor 901 and the memory 902, and the receiving unit 801 and the transmitting unit 802 may be implemented by the transceiver 903.

The terminal device or the chip in the terminal device may also be used to execute various methods executed by the terminal device in the embodiment of the method in fig. 5, which is not described again.

The embodiment of the invention also discloses a readable storage medium, wherein the readable storage medium is stored with a program, and when the program runs, the communication method shown in the figures 3-5 is realized.

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

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

Claims

1. A method of communication, comprising:

receiving configuration information from access network equipment, wherein the configuration information comprises Radio Resource Control (RRC) establishment request configuration information which is used for indicating the number of time units;

determining N RRC establishment request messages or one RRC establishment request according to the RRC establishment request configuration information, wherein each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier or non-access stratum (NAS) signaling, N is an integer greater than or equal to 2, the N RRC establishment request messages are borne on M time units, 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 RRC establishment request messages are borne on M time units, M is an integer greater than or equal to 2 and less than or equal to the number of the time units, the first identifier is an identifier of a terminal device, and the second identifier is an identifier of a core network device;

and sending the RRC establishment request to the access network equipment.

2. The method of claim 1, wherein receiving configuration information from an access network device comprises:

receiving the configuration information broadcasted from the access network equipment; or alternatively

And receiving a Random Access Response (RAR) message from the access network equipment, wherein the RAR message comprises the configuration information.

3. The method according to claim 1 or 2, wherein the configuration information further comprises signaling radio bearer (SRB 1) setup information, the method further comprising:

receiving a conflict resolution message from the access network device;

and establishing the SRB1 according to the SRB1 establishing information.

4. The method of claim 3, further comprising:

receiving a retransmission indication from the access network equipment, wherein the retransmission indication carries a third identifier;

and retransmitting information corresponding to the third identifier to the access network equipment.

5. The method according to claim 4, wherein the third identifier is a number of an RRC establishment request message requiring retransmission or a number of a time unit corresponding to the information requiring retransmission.

6. The method of claim 4, wherein receiving the retransmission indication from the access network device comprises:

receiving a data packet from the access network device, the data packet including the collision resolution message and the retransmission indication.

7. A method of communication, comprising:

sending configuration information to terminal equipment, wherein the configuration information comprises RRC establishment request configuration information, the RRC establishment request configuration information is used for configuring an RRC establishment request, and the RRC establishment request configuration information is used for indicating the number of time units;

receiving N RRC establishment request messages or one RRC establishment request message from the terminal equipment through M time units, wherein each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier or NAS signaling, M is an integer which is greater than or equal to 2 and less than or equal to the number of the time units, N is an integer which is greater than or equal to 2, the RRC establishment request carries the first identifier, the RRC establishment request also carries at least one of the second identifier or NAS signaling, the first identifier is an identifier of the terminal equipment, and the second identifier is an identifier of core network equipment.

8. The method of claim 7, wherein sending configuration information to the terminal device comprises:

sending the configuration information to terminal equipment in a broadcasting mode; or

And sending an RAR message to the terminal equipment, wherein the RAR message comprises the configuration information.

9. The method of claim 7 or 8, wherein the configuration information further comprises SRB1 setup information, and wherein the method further comprises:

and sending a conflict resolution message to the terminal equipment, wherein the conflict resolution message indicates the terminal equipment to establish the SRB1 according to the SRB1 establishment information.

10. The method of claim 9, further comprising:

11. The method of claim 10, wherein the third identifier is a number of the RRC establishment request message that needs to be retransmitted or a number of a time unit corresponding to the information that needs to be retransmitted.

12. The method of claim 10, wherein the sending the retransmission indication to the terminal device comprises:

13. A method of communication, comprising:

receiving an RAR message from access network equipment, wherein the RAR message carries uplink authorization information;

sending a first message to the access network equipment through a resource corresponding to the uplink authorization information;

starting a conflict resolution timer while transmitting the first message;

determining that conflict resolution fails if the conflict resolution timer satisfies a first condition before timeout;

the first condition is:

receiving Downlink Control Information (DCI) including uplink scheduling from the access network equipment, wherein the uplink scheduling is not scheduling for retransmitting the first message.

14. The method of claim 13, wherein receiving the DCI comprising uplink scheduling from the access network device, wherein the uplink scheduling is not scheduling for retransmitting the first message comprises:

receiving DCI including uplink scheduling from the access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that a transmission block value corresponding to the uplink scheduling is not equal to a primary transmission block length of the first message; or alternatively

Receiving DCI including uplink scheduling from the access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that the number of a hybrid automatic repeat request (HARQ) process included in the uplink scheduling is different from the number of the HARQ process used during transmission of the first message; or

Receiving DCI including uplink scheduling from the access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that indication information carried by the DCI indicates that the uplink scheduling is not scheduling for a message 3.

15. The method according to claim 13 or 14, further comprising:

determining that conflict resolution is successful if a second condition is met before the conflict resolution timer times out;

the second condition is that:

and receiving a conflict resolution message from the access network equipment, wherein partial information matched with conflict resolution information included in the conflict resolution message exists in the first message.

16. A communications apparatus, 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, and the RRC establishment request configuration information is used to indicate the number of time units;

a generating unit, configured to determine N RRC establishment request messages or an RRC establishment request according to RRC establishment request configuration information received by the receiving unit, where each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier, or non-access stratum NAS signaling, N is an integer greater than or equal to 2, the N RRC establishment request messages are carried over M time units, the one RRC establishment request carries the first identifier, the one RRC establishment request further carries at least one of the second identifier or NAS signaling, the one RRC establishment request message is carried over M time units, M is an integer greater than or equal to 2 and less than or equal to the number of time units, the first identifier is an identifier of a terminal device, and the second identifier is an identifier of a core network device;

a sending unit, configured to send the RRC establishment request generated by the generating unit to the access network device.

17. The apparatus according to claim 16, wherein the receiving unit is specifically configured to:

receiving the configuration information broadcasted from the access network equipment; or

And receiving an RAR message from an access network device, wherein the RAR message comprises the configuration information.

18. The apparatus according to claim 16 or 17, wherein the configuration information further includes SRB1 setup information, and the receiving unit is further configured to receive a collision resolution message from the access network device;

the device further comprises:

and the establishing unit is used for establishing the SRB1 according to the SRB1 establishing information received by the receiving unit.

19. The apparatus of claim 18, 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, to the access network device, information corresponding to the third identifier received by the receiving unit.

20. The apparatus of claim 19, wherein the third identifier is a number of the RRC establishment request message that needs to be retransmitted or a number of a time unit corresponding to the information that needs to be retransmitted.

21. The apparatus of claim 19, wherein the receiving unit receives the retransmission indication from the access network device comprises:

22. A communication apparatus, 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, wherein the configuration information comprises RRC establishment request configuration information, the RRC establishment request configuration information is used for configuring an RRC establishment request, and the RRC establishment request configuration information is used for indicating the number of time units;

controlling the transceiver unit to receive N RRC establishment request messages or one RRC establishment request message from the terminal device through M time units, where each RRC establishment request message in the N RRC establishment request messages carries at least one of a first identifier, a second identifier, or NAS signaling, M is an integer greater than or equal to 2 and less than or equal to the number of time units, N is an integer greater than or equal to 2, the one RRC establishment request carries the first identifier, the one RRC establishment request also carries at least one of the second identifier or NAS signaling, the first identifier is an identifier of the terminal device, and the second identifier is an identifier of a core network device.

23. The apparatus of claim 22, wherein the transceiver unit sends configuration information to the terminal device comprises:

sending the configuration information to the terminal equipment in a broadcasting mode; or

24. The apparatus according to claim 22 or 23, wherein the configuration information further comprises SRB1 setup information, and wherein the processing unit is further configured to:

and controlling the transceiver unit to send a conflict resolution message to the terminal equipment, wherein the conflict resolution message instructs the terminal equipment to establish the SRB1 according to the SRB1 establishment information.

25. The apparatus of claim 24, wherein the processing unit is further configured to:

controlling the transceiver unit to send a retransmission instruction to the terminal device, wherein the retransmission instruction carries a third identifier;

and controlling the transceiver unit to receive the information corresponding to the third identifier from the terminal equipment.

26. The apparatus according to claim 25, wherein the third identifier is a number of the RRC establishment request message that needs to be retransmitted or a number of a time unit corresponding to the information that needs to be retransmitted.

27. The apparatus of claim 25, wherein the transceiver unit is configured to send the retransmission indication to the terminal device by:

28. A communications apparatus, comprising:

a receiving unit, configured to receive an 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 a resource corresponding to the uplink authorization information received by the receiving unit;

a starting unit configured to start a conflict resolution timer at the same time when the sending unit sends the first message;

a determining unit, configured to determine that conflict resolution fails when a conflict resolution timer started by the starting unit meets a first condition before timeout;

the first condition is:

29. The apparatus of claim 28, wherein the receiving the DCI comprising the uplink schedule from the access network device, wherein the uplink schedule is not a schedule for retransmitting the first message comprises:

receiving DCI including uplink scheduling from the access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that a transmission block value corresponding to the uplink scheduling is not equal to a primary transmission block length of the first message; or

Receiving DCI including uplink scheduling from the access network equipment, and determining that the uplink scheduling is not scheduling for retransmitting the first message under the condition that the number of the HARQ process included in the uplink scheduling is different from the number of the HARQ process used in the first message transmission; or

30. The apparatus according to claim 28 or 29, wherein the determining unit is further configured to determine that conflict resolution is successful if a second condition is met before the conflict resolution timer expires;

the second condition is:

and receiving a conflict resolution message from the access network equipment, wherein partial information matched with the conflict resolution information included in the conflict resolution message exists in the first message.

31. A communications apparatus, comprising:

hardware associated with program instructions for performing the method steps of any of claims 1-15.

32. A readable storage medium, characterized in that the readable storage medium has stored thereon a program which, when executed by a processor, implements the communication method according to any one of claims 1 to 15.