WO2022033549A1 - 无线资源控制连接建立方法、装置、终端及网络侧设备 - Google Patents

无线资源控制连接建立方法、装置、终端及网络侧设备 Download PDF

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Publication number
WO2022033549A1
WO2022033549A1 PCT/CN2021/112256 CN2021112256W WO2022033549A1 WO 2022033549 A1 WO2022033549 A1 WO 2022033549A1 CN 2021112256 W CN2021112256 W CN 2021112256W WO 2022033549 A1 WO2022033549 A1 WO 2022033549A1
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rrc
remote terminal
connection establishment
dedicated
configuration
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PCT/CN2021/112256
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English (en)
French (fr)
Inventor
郑倩
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维沃移动通信有限公司
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Publication of WO2022033549A1 publication Critical patent/WO2022033549A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present invention requires the priority of the Chinese patent application with the application number of 202010814277.3 and the title of the invention "Wireless Resource Control Connection Establishment Method, Apparatus, Terminal and Network-side Equipment” submitted to the Chinese Patent Office on August 13, 2020. The entire contents are incorporated herein by reference.
  • the present application belongs to the technical field of wireless communication, and in particular relates to a method, apparatus, terminal and network side equipment for establishing a wireless resource control connection.
  • a secondary link (sidelink, or side link, side link, etc.) is used for direct data transmission between terminal devices (User Equipment, UE) without going through a network device.
  • terminal devices User Equipment, UE
  • Wireless relay technology can not only be used to expand cell coverage and make up for blind spots in cell coverage, but also improve cell capacity through spatial resource reuse.
  • Relay technology can also play a role in overcoming penetration loss and improving indoor coverage quality.
  • a wireless relay divides a link from a base station to a terminal into two links from the base station to the relay station and from the relay station to the terminal, so that there is an opportunity to replace a link with poor quality with two links.
  • a link with better quality can obtain higher link capacity and better coverage.
  • the relay (relay) that has been supported in the current communication system is the relay from the terminal to the network side, that is, one end of the relay UE (that is, the relay terminal) is connected to the remote UE (that is, the remote terminal), and the other end is connected to the network side.
  • the remote UE needs to transmit data with the network side, but due to poor coverage, the relay UE is found to be the relay.
  • the relay UE communicates with the base station through the Uu interface, and the relay UE and the remote UE communicate with each other through sidelink (also known as PC5) interface communication.
  • sidelink also known as PC5 interface communication.
  • data is transmitted between the remote UE and the base station, and the relay UE plays the role of data relay.
  • the remote UE if the remote UE is outside the network coverage, it can only communicate with the relay UE using the pre-configuration, but cannot communicate through a radio resource control (Radio Resource Control, RRC) connection.
  • RRC Radio Resource Control
  • Embodiments of the present application provide a method, apparatus, terminal, and network-side equipment for establishing a radio resource control connection, which can solve the problem that a remote terminal outside the network coverage cannot communicate through an RRC connection.
  • a first aspect provides a method for establishing a radio resource control connection, comprising: a remote terminal sending a Uu RRC connection establishment request to a relay terminal; receiving a first RRC dedicated configuration returned by the relay terminal, and applying the first RRC dedicated configuration an RRC dedicated configuration; send a Uu RRC connection establishment complete message to the relay terminal.
  • a method for establishing a radio resource control connection comprising: a relay terminal receiving a Uu RRC connection establishment request sent by a remote terminal; forwarding the Uu RRC connection establishment request of the remote terminal to a network side device; receiving the second RRC dedicated configuration returned by the network side device; based on the second RRC dedicated configuration, send the first RRC dedicated configuration to the remote terminal; receive a Uu RRC connection establishment complete message sent by the remote terminal; Send the Uu RRC connection establishment complete message to the network side device.
  • a method for establishing a radio resource control connection including: a network side device receiving a Uu RRC connection establishment request of a remote terminal forwarded by a relay terminal; The terminal configures a second RRC dedicated configuration, wherein the second RRC dedicated configuration carries at least one of the following information: a dedicated configuration for SRB 1 of the remote terminal; a dedicated configuration for SRB 2 of the remote terminal; SL-RNTI of the terminal; sl-CS-RNTI of the remote terminal; resource pool configuration of the remote terminal; sending the second RRC dedicated configuration to the relay terminal; receiving the relay terminal Uu RRC connection establishment complete message sent.
  • a fourth aspect provides an apparatus for establishing a radio resource control connection, which is applied to a remote terminal, the apparatus comprising: a first sending module for sending a Uu RRC connection establishment request to a relay terminal; a first receiving module for using for receiving the first RRC dedicated configuration returned by the relay terminal, and applying the first RRC dedicated configuration; the first sending module is further configured to send a Uu RRC connection establishment complete message to the relay terminal.
  • a fifth aspect provides an apparatus for establishing a radio resource control connection, which is applied to a relay terminal, the apparatus comprising: a second receiving module for receiving a Uu RRC connection establishment request sent by a remote terminal; a second sending module, For forwarding the Uu RRC connection establishment request of the remote terminal to the network side device; a third receiving module, for receiving the second RRC dedicated configuration returned by the network side device; The second RRC dedicated configuration sends the first RRC dedicated configuration to the remote terminal; the second receiving module is further configured to receive a Uu RRC connection establishment complete message sent by the remote terminal; the second sending module , and is also used to send the Uu RRC connection establishment complete message to the network side device.
  • a sixth aspect provides an apparatus for establishing a radio resource control connection, which is applied to a network side device, the apparatus comprising: a fourth receiving module for receiving a Uu RRC connection establishment request of a remote terminal forwarded by a relay terminal; configuring A module configured to configure a second RRC dedicated configuration for the remote terminal based on the Uu RRC connection establishment request, wherein the second RRC dedicated configuration carries at least one of the following information: the SRB of the remote terminal 1 dedicated configuration; SRB 2 dedicated configuration of the remote terminal; SL-RNTI of the remote terminal; s1-CS-RNTI of the remote terminal; resource pool configuration of the remote terminal; fourth transmission
  • the module is configured to send the second RRC dedicated configuration to the relay terminal; the fourth receiving module is further configured to receive the Uu RRC connection establishment complete message sent by the relay terminal.
  • a terminal in a seventh aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor Implement the steps of the method as described in the first aspect, or implement the steps of the method as described in the second aspect.
  • a network-side device in an eighth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the third aspect when executed.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps as described in the first aspect are implemented.
  • a chip in a tenth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a terminal program or instruction to implement the first aspect method, or to implement the method according to the second aspect, or, the processor is configured to run a network-side device program or instruction to implement the method according to the third aspect.
  • a computer program product comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When executed by the processor, the steps of the method described in the first aspect, the steps of the method described in the second aspect, or the steps of the method described in the third aspect are realized.
  • the remote terminal sends a Uu RRC connection establishment request to the relay terminal, and the relay terminal forwards the Uu RRC connection establishment request to the network side device, and the network side device configures the remote terminal based on the request.
  • RRC dedicated configuration the RRC dedicated configuration is forwarded by the network side device to the remote terminal, so that the remote terminal can be in the RRC connection state even if it is outside the network coverage, obtain the dedicated radio resource configuration of the network side device, and improve the remote terminal communication efficiency.
  • FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied
  • FIG. 2 shows a schematic flowchart of a method for establishing a radio resource control connection provided by an embodiment of the present application
  • FIG. 3 shows another schematic flowchart of a method for establishing a radio resource control connection provided by an embodiment of the present application
  • FIG. 4 shows another schematic flowchart of a method for establishing a radio resource control connection provided by an embodiment of the present application
  • FIG. 5 shows another schematic flowchart of a method for establishing a radio resource control connection provided by an embodiment of the present application
  • FIG. 6 shows another schematic flowchart of a method for establishing a radio resource control connection provided by an embodiment of the present application
  • FIG. 7 shows a schematic structural diagram of an apparatus for establishing a radio resource control connection provided by an embodiment of the present application
  • FIG. 8 shows another schematic structural diagram of an apparatus for establishing a radio resource control connection provided by an embodiment of the present application
  • FIG. 9 shows another schematic structural diagram of an apparatus for establishing a radio resource control connection provided by an embodiment of the present application.
  • FIG. 10 shows another schematic structural diagram of an apparatus for establishing a radio resource control connection provided by an embodiment of the present application
  • FIG. 11 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 12 shows a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application.
  • FIG. 13 shows a schematic diagram of a hardware structure of a network-side device provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, although these techniques are also applicable to applications other than NR system applications, such as 6th generation (6 th Generation, 6G) communication system.
  • 6th generation 6 th Generation, 6G
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a relay terminal 11, a network side device 12 and a remote terminal 13.
  • the remote terminal 13 and the relay terminal 11 communicate through the PC5 (secondary link) interface
  • the relay terminal 11 and the network side device 12 communicate through the Uu interface.
  • the relay terminal 11 may also be referred to as a relay terminal device or a relay user terminal (User Equipment, UE), and the remote terminal 13 may also be referred to as a remote terminal device or a remote (remote) UE.
  • the secondary terminal 11 and the remote terminal 13 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, Ultra-mobile personal computer (UMPC), Mobile Internet Device (MID), Wearable Device (Wearable Device) or Vehicle-mounted Device (VUE), Pedestrian Terminal (PUE) and other terminal-side devices, Wearable devices include: bracelets, earphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the NR system is used. The base station in the example is taken as an example, but the specific type of the base station is not limited.
  • FIG. 2 shows a schematic flowchart of a method for establishing a radio resource control connection in an embodiment of the present application, and the method 200 may be executed by a remote terminal.
  • the method may be performed by software or hardware installed on the remote terminal.
  • the method may include the following steps.
  • the remote terminal sends a Uu RRC connection establishment request to the relay terminal.
  • a remote terminal may successfully establish a PC5 signaling (PC5 signaling, PC5-S) link with a relay terminal (relay UE), or a PC5 RRC connection is successfully established.
  • the Uu RRC connection establishment request is sent to the relay UE to establish a new RRC connection, thereby obtaining the dedicated radio resource configuration on the network side.
  • the remote terminal can send a Uu RRC connection establishment request to the relay terminal through the PC5 interface.
  • the remote terminal may send the Uu RRC connection establishment request through a first PC5 (secondary link) RRC message, wherein the first PC5 RRC message is dedicated to sending the Uu RRC connection establishment request, That is, in this possible implementation, a new PC5 RRC message is introduced to send the RRC connection establishment request, and the format of the PC5 RRC message may be different from the format of the existing PC5 RRC message in the communication system.
  • the remote terminal sends a second secondary link RRC message, wherein a dedicated information element (Information Element, IE) of the second secondary link RRC message carries the Uu RRC connection Build request. That is, in this possible implementation, the remote terminal sends the Uu RRC connection establishment request through the second PC5 RRC message, and the Uu RRC connection establishment request is carried in the dedicated IE in the second PC5 RRC message. That is, a new IE is introduced into the PC5 RRC message, and the Uu RRC connection establishment request is sent through the new IE.
  • Information Element Information Element
  • the remote terminal sends a third secondary link RRC message, wherein the dedicated Uu RRC container of the third secondary link RRC message carries the Uu RRC connection establishment request . That is, in this possible implementation, a Uu RRC container is introduced into the PC5 RRC message to send the Uu RRC connection establishment request.
  • the Uu RRC connection establishment request may carry the identity of the remote terminal.
  • 5GS-Temporary Mobile Subscription Identifier 5G S-Temporary Mobile Subscription Identifier, 5G-S-TMSI.
  • the Uu RRC connection establishment request may also carry the reason for the connection establishment request.
  • the cause value can reuse the existing value in the communication system, or can introduce a new value so that the network side can distinguish whether the Uu RRC connection establishment request requests a common Uu service or a relay-based Uu service.
  • S212 Receive the first RRC dedicated configuration returned by the relay terminal, and apply the first RRC dedicated configuration.
  • the relay terminal may forward the Uu RRC connection establishment request of the remote terminal to the network side device, and the network side device after receiving the RRC connection establishment request , the second RRC dedicated configuration may be returned to the relay terminal, and the relay terminal may return the first RRC dedicated configuration to the remote terminal based on the second RRC dedicated configuration returned by the network side device.
  • the first RRC dedicated configuration may include part or all of the second RRC dedicated configuration.
  • the remote terminal After receiving the first RRC dedicated configuration, the remote terminal applies the first RRC dedicated configuration, thereby obtaining the dedicated radio resource configuration of the network side device.
  • the first RRC dedicated configuration carries at least one item of the following information.
  • SL-RNTI Sidelink Radio Network Temporary Identity
  • the above items (3) and (4) can be the configuration for scheduling mode (mode) 1, that is, the resource mode is allocated by the network side device, and the above item (5) can be the configuration for scheduling mode 2, that is, by The mode in which the UE selects resources by itself.
  • S212 may include any of the following:
  • a sixth secondary link RRC message sent by the relay terminal is received, wherein the dedicated Uu RRC container of the sixth secondary link RRC message carries the first RRC dedicated configuration.
  • the remote terminal may send a Uu RRC connection establishment complete message to the relay terminal.
  • the remote terminal can send the Uu RRC connection establishment complete message through a dedicated PC5 RRC message, or it can also send it through the dedicated IE in the PC5 RRC message, or it can also send it through the PC5 RRC message.
  • the dedicated Uu RRC container is sent. Therefore, in a possible implementation manner, S214 may include any of the following:
  • the remote terminal sends the Uu RRC connection establishment complete message through the seventh secondary link RRC message, wherein the seventh secondary link RRC message is dedicated to sending the Uu RRC connection establishment complete message;
  • the remote terminal sends a ninth secondary link RRC message, wherein the dedicated Uu RRC container of the ninth secondary link RRC message carries the Uu RRC connection establishment complete message.
  • the remote terminal sends a Uu RRC connection establishment complete message to the network side device through the relay terminal, so that the network side device can know that the remote terminal has successfully received the RRC dedicated configuration.
  • the remote terminal forwards the Uu RRC connection establishment request to the relay terminal, and the relay terminal forwards it to the network side device.
  • the network side device configures the RRC dedicated RRC connection for the remote terminal.
  • the relay terminal sends the RRC dedicated configuration to the remote terminal, so that the remote terminal can establish a new RRC connection, obtain the dedicated radio resource configuration of the network side device, and improve the communication efficiency of the remote terminal.
  • FIG. 3 shows another schematic flowchart of a method for establishing a radio resource control connection in an embodiment of the present application, and the method 300 may be executed by a relay terminal.
  • the method may be executed by software or hardware installed on the relay terminal.
  • the method may include the following steps.
  • the relay terminal receives the Uu RRC connection establishment request sent by the remote terminal.
  • the remote terminal may send the Uu RRC connection establishment request in the manner described in the above method 200.
  • the remote terminal may send the Uu RRC connection establishment request in the manner described in the above method 200.
  • S210 in the method 200 please refer to the description of S210 in the method 200, which will not be repeated here.
  • the relay terminal After receiving the PC5 RRC message sent by the remote terminal, the relay terminal forwards the RRC connection establishment request of the remote UE to the network side device according to the information parsed in the PC5 RRC message.
  • the relay terminal may initiate a random access channel (Random Access Channel, RACH) process to enter the connected state, and then forward the RRC connection establishment request of the remote UE to the network side device.
  • RACH Random Access Channel
  • S312 may include: if the relay terminal is configured with a RACH resource dedicated to the relay service, initiating a RACH process based on contention resolution, and after the access is successful, reporting to the network side device Send the Uu RRC connection establishment request of the remote terminal.
  • the remote terminal may initiate a contention-based RACH process, and after successful access, send a request to the network
  • the side device sends the Uu RRC connection establishment request of the remote terminal.
  • the relay terminal sends the temporary cell radio network temporary identifier (Cell Radio Network Temporary Identity (Cell) of the Random Access Response (RAR)) to the random access response (Random Access Response, RAR).
  • Cell Cell Radio Network Temporary Identity
  • RAR Random Access Response
  • RNTI, C-RNTI is set as the C-RNTI of the remote terminal.
  • the temporary C-RNTI in the RAP is set to the C-RNTI of the remote UE, so that the network side can know that the RACH process is the RACH triggered by the remote UE, and the scheduled resources are used for the remote UE.
  • the relay terminal may also use the dedicated RRC process to enter the connected state, and forward the Uu RRC connection establishment request of the remote terminal to the network side device. Therefore, in this possible implementation, S312 may include: forwarding the Uu RRC connection establishment request of the remote terminal to the network side device through the SRB1 of the relay terminal. That is, in this possible implementation manner, the relay terminal does not need the RACH process, which is equivalent to the RRC connection establishment request directly multiplexing the SRB1 of the relay UE for message transmission.
  • S314 Receive the second RRC dedicated configuration returned by the network side device.
  • the received second RRC dedicated configuration carries at least one of the following information:
  • the above items (3) and (4) may be for the allocation scheduling mode using mode1, and item (5) may be for the allocation scheduling mode for mode2, for details, please refer to the relevant description in the above method 200.
  • the relay terminal uses a dedicated RRC process to enter the connected state, and forwards the Uu RRC connection establishment request of the remote terminal to the network side device, the second RRC received
  • the dedicated configuration carries at least one of the following information:
  • the C-RNTI of the remote terminal is used for subsequent transmission and reception of Uu data and/or signaling. If the remote terminal is outside the network coverage, the relay terminal replaces it to perform network-side equipment The scheduling monitor.
  • the above items (4) and (5) may be for the allocation scheduling mode using mode1, and item (6) may be for the allocation scheduling mode for mode2.
  • item (6) may be for the allocation scheduling mode for mode2.
  • S314 may include: receiving the second RRC dedicated configuration sent by the network-side device through a dedicated RRC message; or, receiving an RRC message sent by the network-side device, wherein the The dedicated information element of the RRC message carries the second RRC dedicated configuration.
  • the relay terminal sends the first RRC dedicated configuration to the remote terminal based on the received second RRC dedicated configuration, where the first RRC dedicated configuration may include a part carried in the second RRC dedicated configuration or full information.
  • the relay terminal may send the first RRC through a dedicated PC5 RRC message, or a dedicated IE in the PC5 RRC message, or a dedicated Uu RRC container of the PC5 RRC message Dedicated configuration, therefore, in this possible implementation, S316 may include at least one of the following:
  • a sixth secondary link RRC message is sent, wherein the dedicated Uu RRC container of the sixth secondary link RRC message carries the first RRC dedicated configuration.
  • S318 may include at least one of the following:
  • S320 Send the Uu RRC connection establishment complete message to the network side device.
  • S320 may include: sending the Uu RRC connection establishment complete message on the SRB 1 of the remote terminal. That is, in this possible implementation, the Uu RRC connection establishment complete message is sent on the SRB1 configured by the network side device for the remote terminal.
  • S320 may include: sending the Uu RRC connection establishment complete message, wherein the Uu RRC connection establishment complete message is sent.
  • the Uu RRC connection establishment complete message carries indication information, and the indication information indicates that the Uu RRC connection establishment complete message belongs to the remote terminal. For example, a 1-bit indication can be introduced into the RRC connection establishment complete message to distinguish the RRC connection establishment complete message of the remote UE.
  • the Uu RRC connection establishment complete message is sent on the SRB 1 of the remote terminal; if the second RRC dedicated configuration includes the SRB 1 dedicated configuration of the remote terminal The RRC dedicated configuration does not include the dedicated configuration of the SRB 1 of the remote terminal, then the Uu RRC connection establishment complete message is sent on the SRB 1 of the relay terminal.
  • the relay terminal after receiving the Uu RRC connection establishment request message from the remote terminal, the relay terminal forwards the Uu RRC connection establishment request message to the network side device, and after receiving the RRC feedback from the network side device After the dedicated configuration, the RRC dedicated configuration is sent to the remote terminal, so that the remote terminal can obtain the dedicated wireless resource configuration of the network side device, thereby improving the relay communication efficiency.
  • FIG. 4 shows another schematic flowchart of a method for establishing a radio resource control connection in an embodiment of the present application, and the method 400 may be executed by a network side device.
  • the method can be executed by software or hardware installed on the network side device.
  • the method may include the following steps.
  • the network side device receives the Uu RRC connection establishment request of the remote terminal forwarded by the relay terminal.
  • S412 Based on the Uu RRC connection establishment request, configure a second RRC dedicated configuration for the remote terminal, where the second RRC dedicated configuration carries at least one of the following information: SRB 1 dedicated to the remote terminal configuration; the SRB 2 dedicated configuration of the remote terminal; the SL-RNTI of the remote terminal; the s1-CS-RNTI of the remote terminal; the resource pool configuration of the remote terminal.
  • the network side device After receiving the Uu RRC connection establishment request from the remote terminal, the network side device configures the second RRC dedicated configuration for the remote terminal, that is, configures the dedicated radio resource configuration for the remote terminal.
  • the network side device may send the second RRC dedicated configuration through a dedicated RRC message, or may send the second RRC dedicated configuration through a dedicated IE of the RRC message. Therefore, in a possible implementation manner, S414 may include: the network side The second RRC dedicated configuration sent by the device through a dedicated RRC message; or, the network side device sends an RRC message, where the dedicated information element of the RRC message carries the second RRC dedicated configuration.
  • the network-side device After receiving the Uu RRC connection establishment complete message, the network-side device can learn that the remote terminal has received and applied the RRC-specific configuration configured by the network-side device for the remote terminal. Therefore, the network-side device can apply the configured RRC-specific configuration as: The remote terminal provides communication.
  • FIG. 5 shows another schematic flowchart of a method for establishing a radio resource control connection in an embodiment of the present application.
  • the method 500 may be executed by a remote terminal, a relay terminal, and a network-side device (eg, a base station).
  • the method can be executed by software or hardware installed on the remote terminal, the relay terminal and the network side equipment.
  • the method may include the following steps.
  • the remote UE initiates a Uu RRC connection establishment request to the relay UE after the PC5-S link (link) with a certain relay UE is successfully established or the PC5 RRC connection (connection) is successfully established.
  • the remote UE sending the Uu RRC connection establishment request on the PC5 interface may include:
  • the communication system introduces a new PC5 RRC message to send the RRC connection establishment request, and the remote UE sends the RRC connection establishment request through the new PC5 RRC message;
  • a Uu RRC container (container) is introduced into the PC5 RRC message to send the RRC connection establishment request, and the remote UE sends the RRC connection establishment request through the Uu RRC container of the PC5 RRC message.
  • the Uu RRC connection establishment request may carry the following information:
  • the identity of the remote UE such as 5G-S-TMSI
  • the reason for the connection establishment request, the reason value can reuse the existing reason value in the communication system, or introduce a new value so that the network side can distinguish whether the connection establishment request is a common Uu service or a relay-based Uu service .
  • the relay UE forwards the RRC connection establishment request of the remote UE to the base station according to the information parsed in the PC5 RRC message.
  • the relay UE if the relay UE is pre-configured before or the network configures a random access channel (Random Access Channel, RACH) resource dedicated to the relay service, the RACH process based on contention resolution is initiated, and then the remote is sent to the base station.
  • RACH Random Access Channel
  • the RRC connection establishment request of the UE if the RACH resource dedicated to the relay service is not configured, the relay UE initiates a contention-based RACH process, and then sends the RRC connection establishment request of the remote UE to the base station.
  • the relay UE sets the temporary C-RNTI in the RAR to the C-RNTI used by the remote UE.
  • the relay UE receives the RRC dedicated configuration fed back by the base station.
  • the base station can feed back the RRC dedicated configuration through any of the following feedback signaling:
  • the RRC dedicated configuration may carry at least one of the following information:
  • This item is the configuration of the resource scheduling allocation method for mode 1.
  • Resource pool configuration of remote UE This item is the configuration of the source scheduling allocation method for mode 2.
  • the relay UE forwards part or all of the RRC dedicated configuration in S514 to the remote UE.
  • the signaling of the relay UE forwarding the RRC dedicated configuration may include any of the following:
  • the remote UE sends a Uu RRC connection establishment completion message to the relay UE.
  • the specific signaling for sending the Uu RRC connection establishment complete message on the PC5 interface includes any of the following:
  • the relay UE forwards the RRC connection establishment completion message of the remote UE to the base station according to the information parsed in the PC5 RRC message.
  • the relay UE may send the RRC connection establishment complete message on the dedicated configuration SRB1 of the Remote UE; or, the relay UE may introduce 1-bit indication information into the RRC connection establishment complete message, and indicate through the indication information
  • the RRC connection establishment completion message is the completion message of the remote UE.
  • FIG. 6 shows another schematic flowchart of a method for establishing a radio resource control connection in an embodiment of the present application.
  • the method 600 may be executed by a remote terminal, a relay terminal, and a network side device (eg, a base station).
  • the method can be executed by software or hardware installed on the remote terminal, the relay terminal and the network side equipment.
  • the method may include the following steps.
  • the remote UE initiates an RRC connection establishment request to the relay UE after the PC5-S link of a relay UE is successfully established or the PC5 RRC connection is successfully established.
  • This step is the same as S510 in the method 500 .
  • the relay UE forwards the RRC connection establishment request of the remote UE to the base station according to the information parsed in the PC5 RRC message.
  • the relay UE does not need to perform the RACH process, that is, the RRC connection establishment request of the remote UE directly multiplexes the SRB1 of the relay UE for message transmission.
  • the relay UE receives the RRC dedicated configuration fed back by the base station.
  • the signaling of the base station feeding back the RRC dedicated configuration is the same as that of S514.
  • the RRC dedicated configuration may carry at least one of the following information:
  • the C-RNTI of the Remote UE can be used for subsequent transmission and reception of Uu data and/or signaling. If the remote UE is outside the network coverage, the relay UE will perform scheduling monitoring of the base station instead of it.
  • this item is the configuration of the resource scheduling allocation mode for mode 1.
  • the resource pool configuration of the remote UE is the configuration of the resource scheduling allocation method for mode 2
  • S616 to S620 the same as S516 to S520, and will not be repeated here.
  • a method for establishing an RRC connection in a Sidelink relay scenario is provided in the embodiment of the present application, which is applied to a remote UE (remote UE), so that the remote UE can obtain the dedicated radio resource configuration of the base station even if it is outside the network coverage, thereby improving the relay performance. communication efficiency.
  • the execution subject may be a radio resource control connection establishment device, or, in the radio resource control connection establishment device, a method for executing the radio resource control connection establishment method is executed. control module.
  • the radio resource control connection establishment method provided by the embodiment of the present application is described by taking the radio resource control connection establishment method for executing the radio resource control connection establishment method as an example.
  • FIG. 7 is an apparatus for establishing a radio resource control connection provided by an embodiment of the present application, which is applied to a remote terminal.
  • the apparatus 700 may include: a first sending module 701 and a first receiving module 702.
  • the first sending module 701 is configured to send a Uu RRC connection establishment request to the relay terminal; the first receiving module 702 is configured to receive the first RRC dedicated configuration returned by the relay terminal, and apply The first RRC dedicated configuration; the first sending module 701 is further configured to send a Uu RRC connection establishment complete message to the relay terminal.
  • the first sending module 701 sends a Uu radio resource control RRC connection establishment request to the relay terminal, including any of the following:
  • the Uu RRC connection establishment request carries at least one of the following information:
  • the first receiving module 702 receives the first RRC dedicated configuration returned by the relay terminal, including any of the following:
  • a sixth secondary link RRC message sent by the relay terminal is received, wherein the dedicated Uu RRC container of the sixth secondary link RRC message carries the first RRC dedicated configuration.
  • the first sending module 701 sends a Uu RRC connection establishment complete message to the relay terminal, including any of the following:
  • the first RRC dedicated configuration carries at least one of the following information:
  • the signaling radio bearer SRB 1 dedicated configuration of the remote terminal
  • the secondary link configuration scheduling wireless network temporary identifier s1-CS-RNTI of the remote terminal
  • the first sending module 701 forwards the RRC connection establishment request to the relay terminal Uu, and the relay terminal forwards it to the network side device.
  • the end terminal configures the RRC dedicated configuration
  • the relay terminal sends the RRC dedicated configuration to the remote terminal
  • the first receiving module 702 receives and applies the RRC dedicated configuration, so that the remote terminal can establish a new RRC connection and obtain the network side device's dedicated configuration.
  • Dedicated wireless resource configuration improves the communication efficiency of remote terminals.
  • the apparatus for establishing a radio resource control connection in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of remote terminals 13 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television A TV (television, TV), a teller machine, or a self-service machine, etc., are not specifically limited in this embodiment of the present application.
  • the apparatus for establishing a radio resource control connection in this embodiment of the present application may be an apparatus having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the apparatus for establishing a radio resource control connection provided in this embodiment of the present application can implement each process implemented by the remote terminal in the method embodiments of FIG. 2 to FIG. 6 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • FIG. 8 shows another schematic structural diagram of an apparatus for establishing a radio resource control connection provided by an embodiment of the present application.
  • the apparatus for establishing a radio resource control connection is applied to a relay terminal.
  • the apparatus 800 may include: a second A receiving module 801 , a second sending module 802 , a third receiving module 803 and a third sending module 804 .
  • the second receiving module 801 is configured to receive the Uu RRC connection establishment request sent by the remote terminal; the second sending module 802 is configured to forward the Uu RRC connection establishment request of the remote terminal to the network side device request; a third receiving module 803, configured to receive the second RRC dedicated configuration returned by the network side device; and a third sending module 804, configured to send the first RRC dedicated configuration to the remote terminal based on the second RRC dedicated configuration RRC dedicated configuration; the second receiving module 801 is further configured to receive the Uu RRC connection establishment complete message sent by the remote terminal; the second sending module 802 is further configured to send the Uu RRC connection establishment complete message sent to the network side device.
  • the second sending module 802 forwards the Uu RRC connection establishment request of the remote terminal to the network side device, including:
  • the relay terminal is configured with RACH resources dedicated to the relay service, the RACH process based on contention resolution is initiated, and after the access is successful, the Uu RRC connection establishment request of the remote terminal is sent to the network side device.
  • the second sending module 802 forwards the Uu RRC connection establishment request of the remote terminal to the network side device, including:
  • the relay terminal is not configured with RACH resources dedicated to relay services, a contention-based RACH process is initiated, and after successful access, a Uu RRC connection establishment request of the remote terminal is sent to the network side device.
  • the apparatus may further include: a setting module 805, configured to send a random access response to the RAR temporary
  • the C-RNTI is set as the C-RNTI of the remote terminal.
  • the second RRC dedicated configuration carries at least one of the following information:
  • the second sending module 802 forwards the Uu RRC connection establishment request of the remote terminal to the network side device, including:
  • the Uu RRC connection establishment request of the remote terminal is forwarded to the network side device through the SRB1 of the relay terminal.
  • the second RRC dedicated configuration includes at least one of the following information:
  • the third receiving module 803 receives the second RRC dedicated configuration returned by the network side device, including:
  • the second sending module 802 sends the Uu RRC connection establishment complete message to the network side device, including:
  • the Uu RRC connection establishment complete message carries indication information, and the indication information indicates that the Uu RRC connection establishment complete message belongs to the remote terminal.
  • the first RRC dedicated configuration includes part or all of the information in the second RRC dedicated configuration.
  • the apparatus for establishing a radio resource control connection in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of relay terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television A TV (television, TV), a teller machine, or a self-service machine, etc., are not specifically limited in this embodiment of the present application.
  • the apparatus for establishing a radio resource control connection in this embodiment of the present application may be an apparatus having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the apparatus for establishing a radio resource control connection provided in this embodiment of the present application can implement each process implemented by the relay terminal in the method embodiments of FIG. 2 to FIG. 6 , and achieve the same technical effect, which is not repeated here to avoid repetition.
  • FIG. 10 shows another schematic structural diagram of an apparatus for establishing a radio resource control connection provided by an embodiment of the present application, and the apparatus may be applied to a network side device.
  • the apparatus 1000 may include: a fourth receiving module 1001 , a configuration module 1002 and a fourth sending module 1003 .
  • the fourth receiving module 1001 is configured to receive the Uu RRC connection establishment request of the remote terminal forwarded by the relay terminal; the configuration module 1002 is configured to, based on the Uu RRC connection establishment request, provide the remote terminal for the remote terminal.
  • the end terminal configures a second RRC dedicated configuration, wherein the second RRC dedicated configuration carries at least one of the following information: the SRB 1 dedicated configuration of the remote terminal; the SRB 2 dedicated configuration of the remote terminal; the SL-RNTI of the remote terminal; sl-CS-RNTI of the remote terminal; resource pool configuration of the remote terminal; a fourth sending module 1003, configured to send the second RRC to the relay terminal Dedicated configuration; the fourth receiving module 1001 is further configured to receive a Uu RRC connection establishment complete message sent by the relay terminal.
  • the fourth sending module 1003 sends the second RRC dedicated configuration to the relay terminal, including:
  • An RRC message is sent, wherein the dedicated information element of the RRC message carries the second RRC dedicated configuration.
  • the apparatus for establishing a radio resource control connection in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a network-side device.
  • the apparatus may be a network side device.
  • the network side device may include, but is not limited to, the types of the network side device 12 listed above, which are not specifically limited in this embodiment of the present application.
  • the apparatus for establishing a radio resource control connection in this embodiment of the present application may be an apparatus having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the apparatus for establishing a radio resource control connection provided in this embodiment of the present application can implement each process implemented by a network-side device (for example, a base station) in the method embodiments in FIG. 2 to FIG. 6 , and achieve the same technical effect. Repeat.
  • a network-side device for example, a base station
  • an embodiment of the present application further provides a communication device 1100, including a processor 1101, a memory 1102, a program or instruction stored in the memory 1102 and executable on the processor 1101,
  • a communication device 1100 including a processor 1101, a memory 1102, a program or instruction stored in the memory 1102 and executable on the processor 1101,
  • the communication device 1100 is a terminal
  • the program or instruction is executed by the processor 1101
  • each process of the foregoing RRC connection establishment method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 1100 is a network side device
  • the program or instruction is executed by the processor 1101
  • each process of the above-mentioned embodiment of the method for establishing a radio resource control connection can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here. .
  • FIG. 12 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1200 includes but is not limited to: a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, a processor 1210 and other components .
  • the terminal 1200 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1210 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 12 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1204 may include a graphics processor (Graphics Processing Unit, GPU) 12041 and a microphone 12042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1206 may include a display panel 12061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1207 includes a touch panel 12071 and other input devices 12072 .
  • the touch panel 12071 is also called a touch screen.
  • the touch panel 12071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 12072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
  • the radio frequency unit 1201 receives the downlink data from the network side device, and then processes it to the processor 1210; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 1209 may be used to store software programs or instructions as well as various data.
  • the memory 1209 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1209 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM) ), erasable programmable read-only memory (ErasablePROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • ErasablePROM ErasablePROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 1210 may include one or more processing units; optionally, the processor 1210 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1210.
  • the radio frequency unit 1201 is configured to send a Uu RRC connection establishment request to the relay terminal; receive the first RRC dedicated configuration returned by the relay terminal; and send a Uu RRC connection establishment complete message to the relay terminal
  • the processor 1210 is configured to apply the first RRC dedicated configuration.
  • the radio frequency unit 1201 is used for:
  • the terminal provided by the embodiment of the present application can send a Uu RRC connection establishment request to the relay terminal, and the relay terminal forwards the Uu RRC connection establishment request to the network side device, and the network side device based on the request, Configure the RRC dedicated configuration for the remote terminal, and the network-side device forwards the RRC dedicated configuration to the remote terminal, so that the remote terminal can be in the RRC connection state even if it is outside the network coverage, and obtains the dedicated wireless resource configuration of the network-side device. Improve the communication efficiency of the remote terminal.
  • the network device 1300 includes: an antenna 1301 , a radio frequency device 1302 , and a baseband device 1303 .
  • the antenna 1301 is connected to the radio frequency device 1302 .
  • the radio frequency device 1302 receives information through the antenna 1301, and sends the received information to the baseband device 1303 for processing.
  • the baseband device 1303 processes the information to be sent and sends it to the radio frequency device 1302
  • the radio frequency device 1302 processes the received information and sends it out through the antenna 1301 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1303 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 1303 .
  • the baseband apparatus 1303 includes a processor 1304 and a memory 1305 .
  • the baseband device 1303 may include, for example, at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 13 , one of the chips is, for example, the processor 1304 , which is connected to the memory 1305 to call a program in the memory 1305 to execute
  • the network devices shown in the above method embodiments operate.
  • the baseband device 1303 may further include a network interface 1306 for exchanging information with the radio frequency device 1302, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network-side device in the embodiment of the present invention further includes: instructions or programs stored in the memory 1305 and executable on the processor 1304, and the processor 1304 invokes the instructions or programs in the memory 1305 to execute the modules shown in FIG. 10 .
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the above-mentioned RRC connection establishment shown in FIG. 2 to FIG. 6 is realized.
  • Each process of the method embodiment can achieve the same technical effect, and in order to avoid repetition, it will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction, and implement the above-mentioned FIG. 2 to
  • the various processes of the embodiment of the method for establishing a radio resource control connection shown in FIG. 6 can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present application further provides a computer program product, the computer program product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When executed by the processor, each process of the embodiments of the radio resource control connection establishment method shown in FIG. 2 to FIG. 6 is implemented, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.

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Abstract

本申请公开了一种无线资源控制连接建立方法、装置、终端及网络侧设备,属于无线通信技术领域。其中,一种无线资源控制连接建立方法,包括:远端终端向中继终端发送Uu RRC连接建立请求;接收所述中继终端返回的第一RRC专用配置,并应用所述第一RRC专用配置;向所述中继终端发送Uu RRC连接建立完成消息。

Description

无线资源控制连接建立方法、装置、终端及网络侧设备
交叉引用
本发明要求在2020年08月13日提交中国专利局、申请号为202010814277.3、发明名称为“无线资源控制连接建立方法、装置、终端及网络侧设备”的中国专利申请的优先权,该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于无线通信技术领域,具体涉及一种无线资源控制连接建立方法、装置、终端及网络侧设备。
背景技术
在长期演进(Long Term Evolution,LTE)系统中,副链路(sidelink,或侧链路,边链路等)用于终端设备(User Equipment,UE)之间不通过网络设备进行直接数据传输。
无线中继技术不仅可用于扩展小区覆盖,弥补小区覆盖盲点,同时也可通过空间资源复用提升小区容量。对于室内覆盖,中继(Relay)技术也可起到克服穿透损耗,提升室内覆盖质量的作用。
以较简单的两跳中继为例,无线中继将一个基站到终端的链路分割为基站到中继站以及中继站到终端两个链路,从而有机会将一个质量较差的链路替换为两个质量较好的链路,以获得更高的链路容量及更好的覆盖。
目前通信系统中已经支持的中继(relay)为终端到网络侧中继,即relay UE(即中继终端)的一端连接remote UE(即远端终端),另一端连接网络 侧。
在典型的sidelink relay场景中,remote UE需要与网络侧传输数据,但由于覆盖不佳,找到relay UE为其中转,其中relay UE与基站之间通过Uu接口通信,relay UE和remote UE之间通过sidelink(也称为PC5)接口通信。在这个场景中,remote UE和基站之间进行数据传输,relay UE起到数据中转作用。
在相关技术中,remote UE如果处于网络覆盖外,则只能使用预配置与relay UE进行通信,而无法通过无线资源控制(Radio Resource Control,RRC)连接进行通信。
发明内容
本申请实施例提供一种无线资源控制连接建立方法、装置、终端及网络侧设备,能够解决处于网络覆盖外的远端终端无法通过RRC连接进行通信的问题。
第一方面,提供了一种无线资源控制连接建立方法,包括:远端终端向中继终端发送Uu RRC连接建立请求;接收所述中继终端返回的第一RRC专用配置,并应用所述第一RRC专用配置;向所述中继终端发送Uu RRC连接建立完成消息。
第二方面,提供了一种无线资源控制连接建立方法,包括:中继终端接收远端终端发送的Uu RRC连接建立请求;向网络侧设备转发所述远端终端的Uu RRC连接建立请求;接收所述网络侧设备返回的第二RRC专用配置;基于所述第二RRC专用配置,向所述远端终端发送第一RRC专用配置;接收所述远端终端发送的Uu RRC连接建立完成消息;将所述Uu RRC连接建立完成消息发送给所述网络侧设备。
第三方面,提供了一种无线资源控制连接建立方法,包括:网络侧设备接收中继终端转发的远端终端的Uu RRC连接建立请求;基于所述Uu RRC 连接建立请求,为所述远端终端配置第二RRC专用配置,其中,所述第二RRC专用配置中携带以下至少一项信息:所述远端终端的SRB 1专用配置;所述远端终端的SRB 2专用配置;所述远端终端的SL-RNTI;所述远端终端的sl-CS-RNTI;所述远端终端的资源池配置;向所述中继终端发送所述第二RRC专用配置;接收所述中继终端发送的Uu RRC连接建立完成消息。
第四方面,提供了一种无线资源控制连接建立装置,应用于远端终端,所述装置包括:第一发送模块,用于向中继终端发送Uu RRC连接建立请求;第一接收模块,用于接收所述中继终端返回的第一RRC专用配置,并应用所述第一RRC专用配置;所述第一发送模块,还用于向所述中继终端发送Uu RRC连接建立完成消息。
第五方面,提供了一种无线资源控制连接建立装置,应用于中继终端,所述装置包括:第二接收模块,用于接收远端终端发送的Uu RRC连接建立请求;第二发送模块,用于向网络侧设备转发所述远端终端的Uu RRC连接建立请求;第三接收模块,用于接收所述网络侧设备返回的第二RRC专用配置;第三发送模块,用于基于所述第二RRC专用配置,向所述远端终端发送第一RRC专用配置;所述第二接收模块,还用于接收所述远端终端发送的Uu RRC连接建立完成消息;所述第二发送模块,还用于将所述Uu RRC连接建立完成消息发送给所述网络侧设备。
第六方面,提供了一种无线资源控制连接建立装置,应用于网络侧设备,所述装置包括:第四接收模块,用于接收中继终端转发的远端终端的Uu RRC连接建立请求;配置模块,用于基于所述Uu RRC连接建立请求,为所述远端终端配置第二RRC专用配置,其中,所述第二RRC专用配置中携带以下至少一项信息:所述远端终端的SRB 1专用配置;所述远端终端的SRB 2专用配置;所述远端终端的SL-RNTI;所述远端终端的sl-CS-RNTI;所述远端终端的资源池配置;第四发送模块,用于向所述中继终端发送所述第二RRC专用配置;所述第四接收模块,还用于接收所述中继终端发送的Uu RRC连 接建立完成消息。
第七方面,提供了一种终端,该终端包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第八方面,提供了一种网络侧设备,该网络侧设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第三方面所述的方法的步骤。
第九方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤。
第十方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行终端程序或指令,实现如第一方面所述的方法,或实现如第二方面所述的方法,或者,所述处理器用于运行网络侧设备程序或指令,实现如第三方面所述的方法。
第十一方面,提供了一种计算机程序产品,该计算机程序产品包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤。
在本申请实施例中,远端终端向中继终端发送Uu RRC连接建立请求,由中继终端将该Uu RRC连接建立请求转发给网络侧设备,网络侧设备基于该请求,为远端终端配置RRC专用配置,由网络侧设备将该RRC专用配置转发远端终端,从而使得远端终端即使处于网络覆盖外也能处于RRC连接态,获得网络侧设备的专用无线资源配置,提高远端终端的通信效率。
附图说明
图1示出本申请实施例可应用的一种无线通信系统的框图;
图2示出本申请实施例提供的无线资源控制连接建立方法的一种流程示意图;
图3示出本申请实施例提供的无线资源控制连接建立方法的另一种流程示意图;
图4示出本申请实施例提供的无线资源控制连接建立方法的又一种流程示意图;
图5示出本申请实施例提供的无线资源控制连接建立方法的又一种流程示意图;
图6示出本申请实施例提供的无线资源控制连接建立方法的又一种流程示意图;
图7示出本申请实施例提供的无线资源控制连接建立装置的一种结构示意图;
图8示出本申请实施例提供的无线资源控制连接建立装置的另一种结构示意图;
图9示出本申请实施例提供的无线资源控制连接建立装置的又一种结构示意图;
图10示出本申请实施例提供的无线资源控制连接建立装置的又一种结构示意图;
图11示出本申请实施例提供的一种通信设备的结构示意图;
图12示出本申请实施例提供的一种终端的硬件结构示意图;
图13示出本申请实施例提供的一种网络侧设备的硬件结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。然而,以下描述出于示例目的描述了新空口(NewRadio,NR)系统,并且在以下大部分描述中使用NR术语,尽管这些技术也可应用于NR系统应用以外的应用,如第6代(6 thGeneration,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系 统包括中继终端11、网络侧设备12和远端终端13。在本申请实施例中,远端终端13与中继终端11之间通过PC5(副链路)接口进行通信,中继终端11与网络侧设备12之间通过Uu接口进行通信。
其中,中继终端11也可以称作中继(relay)终端设备或者中继用户终端(User Equipment,UE),远端终端13也可以称作远端终端设备或者远端(remote)UE,中继终端11和远端终端13可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行人终端(PUE)等终端侧设备,可穿戴式设备包括:手环、耳机、眼镜等。需要说明的是,在本申请实施例并不限定中继终端11和远端终端13的具体类型。网络侧设备12可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(TransmittingReceivingPoint,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
下面结合附图,通过具体的实施例及其应用场景对本申请实施例提供的无线资源控制连接建立方法进行详细地说明。
图2示出本申请实施例中的无线资源控制连接建立方法的一种流程示意图,该方法200可以由远端终端执行。换言之,所述方法可以由安装在远端终端上的软件或硬件来执行。如图2所示,该方法可以包括以下步骤。
S210,远端终端向中继终端发送Uu RRC连接建立请求。
在本申请实施例中,远端终端(remote UE)可以在与某一中继终端(relay UE)的PC5信令(PC5 singnalling,PC5-S)链路建立成功后,或者PC5 RRC连接建立成功后,向relay UE发送所述Uu RRC连接建立请求,以建立新的RRC连接,进而获得网络侧的专用无线资源配置。
远端终端可以通过PC5接口向中继终端发送Uu RRC连接建立请求。在一个可能的实现方式中,远端终端可以通过第一PC5(副链路)RRC消息发送所述Uu RRC连接建立请求,其中,所述第一PC5 RRC消息专用于发送Uu RRC连接建立请求,即在该可能的实现方式中,引入一条新的PC5 RRC消息发送该RRC连接建立请求,该PC5 RRC消息的格式可以与通信系统中已有的PC5 RRC消息的格式不同。
或者,在另一个可能的实现方式中,远端终端发送第二副链路RRC消息,其中,所述第二副链路RRC消息的专用信息单元(Information Element,IE)携带所述Uu RRC连接建立请求。也就是说,在该可能的实现方式中,远端终端通过第二PC5 RRC消息发送所述Uu RRC连接建立请求,在第二PC5 RRC消息中的专用IE中携带所述Uu RRC连接建立请求。即在PC5 RRC消息引入新的IE,通过该新的IE发送该Uu RRC连接建立请求。
或者,在另一个可能的实现方式中,所述远端终端发送第三副链路RRC消息,其中,所述第三副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立请求。即在该可能的实现方式中,在PC5 RRC消息引入一个Uu RRC container发送该Uu RRC连接建立请求。
在一个可能的实现方式中,该Uu RRC连接建立请求可以携带远端终端的身份标识。例如,5GS-临时移动签约标识(5G S-Temporary Mobile Subscription Identifier,5G-S-TMSI)。
在另一个可能的实现方式中,该Uu RRC连接建立请求也可以携带连接建立请求的原因。其中,该原因值可以复用通信系统中已有的值,也可以引入新的值以使得网络侧可以区分该Uu RRC连接建立请求所请求的是普通的 Uu服务还是基于relay的Uu服务。
S212,接收所述中继终端返回的第一RRC专用配置,并应用所述第一RRC专用配置。
在本申请实施例中,中继终端在接收到所述Uu RRC连接建立请求后,可以向网络侧设备转发该远端终端的Uu RRC连接建立请求,网络侧设备在接收该RRC连接建立请求后,可以向中继终端返回第二RRC专用配置,中继终端基于网络侧设备返回的第二RRC专用配置,向远端终端返回第一RRC专用配置。其中,第一RRC专用配置可以为包括部分或全部第二RRC专用配置。
远端终端在接收到第一RRC专用配置后,应用第一RRC专用配置,从而获得网络侧设备的专用无线资源配置。
在一个可能的实现方式中,所述第一RRC专用配置携带以下至少一项信息。
(1)所述远端终端的信令无线承载(Signalling Radio Bearer,SRB)专用配置。
(2)所述远端终端的SRB 2专用配置。
(3)所述远端终端的副链路无线网络临时标识(Sidelink Radio Network Temporary Identity,SL-RNTI)。
(4)所述远端终端的副链路配置调度无线网络临时标识(Sidelink Configured SchedulingRadio Network Temporary Identity,SL-CS-RNTI);
(5)所述远端终端的资源池配置。
其中,上述第(3)和(4)项可以是针对调度模式(mode)1的配置,即由网络侧设备分配资源模式,上述第(5)项可以是针对调度mode 2的配置,即由UE自己选择资源的模式。
在一个可能的实现方式中,中继终端向远端终端返所述第一RRC专用配置时,可以通过专用的PC5 RRC消息发送,也可以通过PC5 RRC消息中的 专用IE发送,或者,也可以通过PC5 RRC消息的专用Uu RRC容器发送。因此,在该可能的实现方式中,S212可以包括以下任一项:
接收所述中继终端通过第四副链路RRC消息发送所述第一RRC专用配置,其中,所述第四副链路RRC消息专用于发送RRC专用配置;
接收所述中继终端发送的第五副链路RRC消息,其中,所述第五副链路RRC的专用信息单元中携带有所述第一RRC专用配置;
接收所述中继终端发送的第六副链路RRC消息,其中,所述第六副链路RRC消息的专用Uu RRC容器中携带有所述第一RRC专用配置。
S214,向所述中继终端发送Uu RRC连接建立完成消息。
在本申请实施例中,远端终端在接收第一RRC专用配置之后,可以向中继终端发送Uu RRC连接建立完成消息。
与发送Uu RRC连接建立请求类似,远端终端可以通过一个专用的PC5 RRC消息发送Uu RRC连接建立完成消息,或者,也可以通过PC5 RRC消息中的专用IE发送,或者,也可以通过PC5 RRC消息的专用Uu RRC容器发送。因此,在一个可能的实现方式中,S214可以包括以下任一项:
所述远端终端通过第七副链路RRC消息发送所述Uu RRC连接建立完成消息,其中,所述第七副链路RRC消息专用于发送Uu RRC连接建立完成消息;
所述远端终端发送第八副链路RRC消息,其中,所述第八副链路RRC消息的专用信息单元携带所述Uu RRC连接建立完成消息;
所述远端终端发送第九副链路RRC消息,其中,所述第九副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立完成消息。
远端终端通过中继终端向网络侧设备发送Uu RRC连接建立完成消息,从而使得网络侧设备可以获知远端终端已成功接收到RRC专用配置。
通过本申请实施例提供的上述方法,远端终端通过向中继终端Uu RRC连接建立请求,由中继终端转发给网络侧设备,网络侧设备接收到该请求之 后,为远端终端配置RRC专用配置,中继终端将RRC专用配置发送给远端终端,从而使得远端终端可以建立新的RRC连接,获得网络侧设备的专用无线资源配置,提高远端终端的通信效率。
图3示出本申请实施例中的无线资源控制连接建立方法的另一种流程示意图,该方法300可以由中继终端执行。换言之,所述方法可以由安装在中继终端上的软件或硬件来执行。如图3所示,该方法可以包括以下步骤。
S310,中继终端接收远端终端发送的Uu RRC连接建立请求。
其中,远端终端可以采用上述方法200中所述的方式发送Uu RRC连接建立请求,具体可以参见方法200中对S210的描述,在此不再赘述。
S312,向网络侧设备转发所述远端终端的Uu RRC连接建立请求。
中继终端在接收到远端终端发送的PC5 RRC消息之后,根据PC5 RRC消息中解析到的信息,向网络侧设备转发remote UE的RRC连接建立请求。
在一个可能的实现方式中,中继终端可以发起随机接入信道(Random Access Channel,RACH)过程从而进入连接态,然后向网络侧设备转发remote UE的RRC连接建立请求。因此,该可能的实现方式中,S312可以包括:若所述中继终端配置了专用于中继服务的RACH资源,则发起基于竞争解决的RACH过程,接入成功后,向所述网络侧设备发送所述远端终端的Uu RRC连接建立请求。
或者,在另一个可能的实现方式中,若所述中继终端未配置有专用于中继服务的RACH资源,则远端终端可以发起基于竞争的RACH过程,接入成功后,向所述网络侧设备发送所述远端终端的Uu RRC连接建立请求。
在上述可能的实现方式中,若在所述基于竞争的RACH过程中,竞争解决成功,则所述中继终端将随机接入响应(Random Access Response,RAR)的临时小区无线网络临时标识(Cell RNTI,C-RNTI)设置为所述远端终端的C-RNTI。通过该可能的实现方式,将RAP中的临时C-RNTI设置为remote UE的C-RNTI,可以使得网络侧可以获知该RACH过程为remote UE触发的 RACH,调度的资源是给remote UE用的。
在另一个可能的实现方式中,中继终端也可以利用专用RRC流程以进入连接态,向所述网络侧设备转发所述远端终端的Uu RRC连接建立请求。因此,在该可能的实现方式中,S312可以包括:通过所述中继终端的SRB1向所述网络侧设备转发所述远端终端的Uu RRC连接建立请求。即在该可能的实现方式中,中继终端无需RACH过程,相当于RRC连接建立请求是直接复用了relay UE的SRB1进行消息发送。
S314,接收所述网络侧设备返回的第二RRC专用配置。
在一个可能的实现方式中,如果中继终端发起RACH过程从而进入连接态,向网络侧设备转发所述Uu RRC连接建立请求,则接收到的所述第二RRC专用配置中携带以下至少一项信息:
(1)所述远端终端的SRB 1专用配置;
(2)所述远端终端的SRB 2专用配置;
(3)所述远端终端的SL-RNTI;
(4)所述远端终端的SL-CS-RNTI;
(5)所述远端终端的资源池配置。
其中,上述第(3)和(4)项,可以是针对采用mode1的分配调度模式,第(5)可以是针对mode2的分配调度模式,具体可以参见上述方法200中的相关描述。
在另一个可能的实现方式中,若中继终端利用专用RRC流程以进入连接态,向所述网络侧设备转发所述远端终端的Uu RRC连接建立请求,则接收到的所述第二RRC专用配置中携带以下至少一项信息:
(1)所述远端终端的C-RNTI;该C-RNTI用于后续对Uu数据和/或信令的收发,如果远端终端处于网络覆盖外,则中继终端代替其进行网络侧设备的调度监听。
(2)所述远端终端的SRB 1专用配置。
(3)所述远端终端的SRB 2专用配置。
(4)所述远端终端的SL-RNTI。
(5)所述远端终端的SL-CS-RNTI。
(6)所述远端终端的资源池配置。
其中,上述第(4)和(5)项,可以是针对采用mode1的分配调度模式,第(6)可以是针对mode2的分配调度模式,具体可以参见上述方法200中的相关描述。
在一个可能的实现方式中,网络侧设备在返回第二RRC专用配置时,可以通过专用RRC消息发送,也可以通过RRC消息的专用IE发送。因此,在该可能的实现方式中,S314可以包括:接收所述网络侧设备通过专用RRC消息发送的所述第二RRC专用配置;或者,接收所述网络侧设备发送的RRC消息,其中,所述RRC消息的专用信息单元中携带有所述第二RRC专用配置。
S316,基于所述第二RRC专用配置,向所述远端终端发送第一RRC专用配置。
在本申请实施例中,中继终端基于接收到的第二RRC专用配置,向远端终端发送第一RRC专用配置,其中,第一RRC专用配置可以包括第二RRC专用配置中携带的部分或全部信息。
在一个可能的实现方式中,与上述方法200中的S212对应,中继终端可以通过专用的PC5 RRC消息、或PC5 RRC消息中的专用IE、或者PC5 RRC消息的专用Uu RRC容器发送第一RRC专用配置,因此,在该可能的实现方式中,S316可以包括以下至少一项:
通过第四副链路RRC消息发送所述第一RRC专用配置,其中,所述第四副链路RRC消息专用于发送RRC专用配置;
发送第五副链路RRC消息,其中,所述第五副链路RRC的专用信息单元中携带有所述第一RRC专用配置;
发送第六副链路RRC消息,其中,所述第六副链路RRC消息的专用Uu RRC容器中携带有所述第一RRC专用配置。
S318,接收所述远端终端发送的Uu RRC连接建立完成消息。
在一个可能的实现方式中,与上述方法200中的S214对应,S318可以包括以下至少一项:
接收所述远端终端通过第七副链路RRC消息发送的所述Uu RRC连接建立完成消息,其中,所述第七副链路RRC消息专用于发送Uu RRC连接建立完成消息;
接收所述远端终端发送的第八副链路RRC消息,其中,所述第八副链路RRC消息的专用信息单元携带所述Uu RRC连接建立完成消息;或者,
接收所述远端终端发送的第九副链路RRC消息,其中,所述第九副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立完成消息。
S320,将所述Uu RRC连接建立完成消息发送给所述网络侧设备。
中继终端根据接收到的PC5 RRC消息中解析到的信息,向网络侧设备转发所述Uu RRC连接建立完成消息。在一个可能的实现方式中,S320可以包括:在所述远端终端的SRB 1上发送所述Uu RRC连接建立完成消息。即在该可能的实现方式中,在网络侧设备为远端终端配置的SRB1上发送Uu RRC连接建立完成消息。
或者,在另一个可能实现方式中,为了使网络侧设备可以识别出当前发送的为远端终端的Uu RRC连接建立完成消息,S320可以包括:发送所述Uu RRC连接建立完成消息,其中,所述Uu RRC连接建立完成消息携带有指示信息,所述指示信息指示所述Uu RRC连接建立完成消息为所述远端终端的。例如,可以RRC连接建立完成消息中引入1bit指示区分是remote UE的RRC连接建立完成消息。在该可能的实现方式中,如果第二RRC专用配置包括所述远端终端的SRB 1专用配置,则在所述远端终端的SRB 1上发送所述Uu RRC连接建立完成消息;如果第二RRC专用配置不包括所述远端终 端的SRB 1专用配置,则在所述中继终端的SRB 1上发送所述Uu RRC连接建立完成消息。
通过本申请实施例提供的上述方法,中继终端在接收到远端终端的Uu RRC连接建立请求消息后,向网络侧设备转发Uu RRC连接建立请求消息,并在接收到网络侧设备反馈的RRC专用配置后,向远端终端发送RRC专用配置,从而使得远端终端可以获得网络侧设备的专用无线资源配置,提高中继通信效率。
图4示出本申请实施例中的无线资源控制连接建立方法的又一种流程示意图,该方法400可以由网络侧设备执行。换言之,所述方法可以由安装在网络侧设备上的软件或硬件来执行。如图4所示,该方法可以包括以下步骤。
S410,网络侧设备接收中继终端转发的远端终端的Uu RRC连接建立请求。
中继终端转发所述Uu RRC连接建立请求的可能实现方式,可以参见方法300的S312中的描述,在此不再赘述。
S412,基于所述Uu RRC连接建立请求,为所述远端终端配置第二RRC专用配置,其中,所述第二RRC专用配置中携带以下至少一项信息:所述远端终端的SRB 1专用配置;所述远端终端的SRB 2专用配置;所述远端终端的SL-RNTI;所述远端终端的sl-CS-RNTI;所述远端终端的资源池配置。
在接收到远端终端的Uu RRC连接建立请求,网络侧设备为远端终端配置第二RRC专用配置,即为远端终端配置专用无线资源配置。
S414,向所述中继终端发送所述第二RRC专用配置。
网络侧设备可以通过专用RRC消息发送第二RRC专用配置,也可以通过RRC消息的专用IE发送所述第二RRC专用配置,因此,在一个可能的实现方式中,S414可以包括:所述网络侧设备通过专用RRC消息发送的所述第二RRC专用配置;或者,所述网络侧设备发送RRC消息,其中,所述RRC消息的专用信息单元中携带有所述第二RRC专用配置。
S416,接收所述中继终端发送的Uu RRC连接建立完成消息。
其中,中继终端发送Uu RRC连接建立完成消息的可能实现方式,可以参见方法300中的相关描述,在此不再赘述。
网络侧设备在接收到Uu RRC连接建立完成消息后,可以获知远端终端已接收并应用网络侧设备为该远端终端配置的RRC专用配置,因此,网络侧设备可以应用配置的RRC专用配置为远端终端提供通信。
图5示出本申请实施例中的无线资源控制连接建立方法的又一种流程示意图,该方法500可以由远端终端、中继终端和网络侧设备(例如,基站)执行。换言之,所述方法可以由安装在远端终端、中继终端和网络侧设备上的软件或硬件来执行。如图5所示,该方法可以包括以下步骤。
S510,remote UE在与某relay UE的PC5-S链路(link)建立成功或PC5 RRC连接(connection)建立成功后,向relay UE发起Uu RRC连接建立请求。
在一个可能的实现方式中,remote UE在PC5接口上发送Uu RRC连接建立请求可以包括:
(1)通信系统引入一条新的PC5 RRC消息发送该RRC连接建立请求,remote UE通过该新的PC5 RRC消息发送该RRC连接建立请求;或
(2)在PC5 RRC消息引入新的IE发送该RRC连接建立请求,remote UE通过PC5 RRC消息的该新的IE发送该RRC连接建立请求;或
(3)在PC5 RRC消息引入一个Uu RRC容器(container)发送该RRC连接建立请求,,remote UE通过PC5 RRC消息的该Uu RRC container发送该RRC连接建立请求。
在一个可能的实现方式中,所述Uu RRC连接建立请求可携带以下信息:
(1),remote UE的身份标识,例如5G-S-TMSI
(2),连接建立请求的原因,该原因值可以复用通信系统中已有的原因值,也可以引入新的值以便网络侧可以区分连接建立请求是普通的Uu服务 还是基于relay的Uu服务。
S512,relay UE根据PC5 RRC消息中解析到的信息,向基站转发remote UE的RRC连接建立请求。
在该实施例中,如果relay UE在之前被预配置或者网络配置了专用于relay服务的随机接入信道(Random Access Channel,RACH)资源,则发起基于竞争解决的RACH过程,随后向基站发送remote UE的RRC连接建立请求;如果未配置专用于relay服务的RACH资源,则relay UE发起基于竞争的RACH过程,随后向基站发送remote UE的RRC连接建立请求。
另外,在一个可能实现方式中,如果竞争解决成功,则relay UE将RAR中的临时C-RNTI设置为remote UE使用的C-RNTI。
S514,relay UE接收到基站反馈的RRC专用配置。
其中,基站可以通过以下任一项的反馈信令反馈所述RRC专用配置:
(1)通信系统引入的新的RRC消息,该RRC消息用于发送所述RRC专用配置;
(2)在通信系统现有的RRC消息中引入一个新的IE发送所述RRC专用配置。
在一个可能的实现方式中,所述RRC专用配置可以携带以下信息至少之一:
(1)remote UE的SRB 1和/或SRB2专用配置。
(2)remote UE的SL-RNTI和/或Sl-CS-RNTI。该项为针对mode 1的资源调度分配方式的配置。
(3)remote UE的资源池配置。该项为针对mode 2的源调度分配方式的配置。
S516,relay UE向remote UE转发S514中的部分或全部RRC专用配置。
relay UE转发RRC专用配置的信令可以包括以下任一项:
(1)通信系统引入的一条新的PC5 RRC消息,该新的PC5 RRC消息用 于发送该RRC专用配置;
(2)PC5 RRC消息,该PC5 RRC消息中引入一个新的IE,通过该新的IE发送该RRC专用配置;
(3)PC5 RRC消息,该PC5 RRC消息中引入一个Uu RRC container,通过该Uu RRC container发送该RRC专用配置。
S518,remote UE向relay UE发送Uu RRC连接建立完成消息。
其中,在PC5接口上发送Uu RRC连接建立完成消息的具体信令包括以下任一项:
(1)通信系统引入的一条新的PC5 RRC消息,该新PC5 RRC消息用于发送该RRC连接建立完成消息;
(2)PC5 RRC消息,该PC5 RRC消息中引入新的IE,通过该新的IE发送该RRC连接建立完成消息;
(3)PC5 RRC消息,该PC5 RRC消息中引入一个Uu RRC container,通过该Uu RRC container发送该RRC连接建立完成消息。
S520,relay UE根据PC5 RRC消息中解析到的信息,向基站转发remote UE的RRC连接建立完成消息。
在一个可能的实现方式中,relay UE可以将该RRC连接建立完成消息在Remote UE的专用配置SRB1上发送;或者,relay UE可以在RRC连接建立完成消息中引入1bit指示信息,通过该指示信息指示该RRC连接建立完成消息是remote UE的完成消息。
图6示出本申请实施例中的无线资源控制连接建立方法的又一种流程示意图,该方法600可以由远端终端、中继终端和网络侧设备(例如,基站)执行。换言之,所述方法可以由安装在远端终端、中继终端和网络侧设备上的软件或硬件来执行。如图6所示,该方法可以包括以下步骤。
S610,remote UE在与某relay UE的PC5-S link建立成功或PC5 RRC connection建立成功后,向relay UE发起RRC连接建立请求。
该步骤与方法500中的S510相同。
S612,relay UE根据PC5 RRC消息中解析到的信息向基站转发remote UE的RRC连接建立请求。
在本实施例中,relay UE无需执行RACH过程,即remote UE的RRC连接建立请求直接复用relay UE的SRB1进行消息发送。
S614,relay UE接收到基站反馈的RRC专用配置。
其中,基站反馈RRC专用配置的信令与S514相同。
在本实施例中,所述RRC专用配置可以携带以下信息至少之一:
(1)Remote UE的C-RNTI,该C-RNTI可用于后续对Uu数据和/或信令的收发,如果remote UE是处于网络覆盖外,则由relay UE代替其进行基站的调度监听。
(2)remote UE的SRB1和/或SRB2专用配置
(3)remote UE的SL-RNTI和/或SL-CS-RNTI,该项为针对mode 1的资源调度分配方式的配置。
(4)remote UE的资源池配置,该项为针对mode 2的资源调度分配方式的配置
S616~S620:同S516~S520,在此不再赘述。
本申请实施例中给出一种在Sidelink relay场景下的RRC连接建立方法,应用于remote UE(远端UE),使得remote UE即使处于网络覆盖外也能获取基站的专用无线资源配置,提高relay通信效率。
需要说明的是,本申请实施例提供的无线资源控制连接建立方法,执行主体可以为无线资源控制连接建立装置,或者,该无线资源控制连接建立装置中的用于执行无线资源控制连接建立方法的控制模块。本申请实施例中以无线资源控制连接建立装置执行无线资源控制连接建立方法为例,说明本申请实施例提供的无线资源控制连接建立装置。
图7为本申请实施例提供的无线资源控制连接建立装置,应用于远端终 端,如图7所示,装置700可以包括:第一发送模块701和第一接收模块702。
在本申请实施例中,第一发送模块701,用于向中继终端发送Uu RRC连接建立请求;第一接收模块702,用于接收所述中继终端返回的第一RRC专用配置,并应用所述第一RRC专用配置;所述第一发送模块701,还用于向所述中继终端发送Uu RRC连接建立完成消息。
在一个可能的实现方式中,所述第一发送模块701向中继终端发送Uu无线资源控制RRC连接建立请求,包括以下任一项:
通过第一副链路RRC消息发送所述Uu RRC连接建立请求,其中,所述第一副链路RRC消息专用于发送Uu RRC连接建立请求;
发送第二副链路RRC消息,其中,所述第二副链路RRC消息的专用信息单元携带所述第一所述Uu RRC连接建立请求;
发送第三副链路RRC消息,其中,所述第三副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立请求。
在一个可能的实现方式中,所述Uu RRC连接建立请求中携带以下至少一项信息:
所述远端终端的身份标识;
连接建立请求的原因。
在一个可能的实现方式中,所述第一接收模块702接收所述中继终端返回的第一RRC专用配置,包括以下任一项:
接收所述中继终端通过第四副链路RRC消息发送所述第一RRC专用配置,其中,所述第四副链路RRC消息专用于发送RRC专用配置;
接收所述中继终端发送的第五副链路RRC消息,其中,所述第五副链路RRC的专用信息单元中携带有所述第一RRC专用配置;
接收所述中继终端发送的第六副链路RRC消息,其中,所述第六副链路RRC消息的专用Uu RRC容器中携带有所述第一RRC专用配置。
在一个可能的实现方式中,所述第一发送模块701向所述中继终端发送 Uu RRC连接建立完成消息,包括以下任一项:
通过第七副链路RRC消息发送所述Uu RRC连接建立完成消息,其中,所述第七副链路RRC消息专用于发送Uu RRC连接建立完成消息;
发送第八副链路RRC消息,其中,所述第八副链路RRC消息的专用信息单元携带所述Uu RRC连接建立完成消息;或者,
发送第九副链路RRC消息,其中,所述第九副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立完成消息。
在一个可能的实现方式中,所述第一RRC专用配置携带以下至少一项信息:
所述远端终端的信令无线承载SRB 1专用配置;
所述远端终端的SRB 2专用配置;
所述远端终端的副链路无线网络临时标识SL-RNTI;
所述远端终端的副链路配置调度无线网络临时标识sl-CS-RNTI;
所述远端终端的资源池配置。
通过本申请实施例提供的RRC连接建立请求装置,第一发送模块701通过向中继终端Uu RRC连接建立请求,由中继终端转发给网络侧设备,网络侧设备接收到该请求之后,为远端终端配置RRC专用配置,中继终端将RRC专用配置发送给远端终端,第一接收模块702接收并应用该RRC专用配置,从而使得远端终端可以建立新的RRC连接,获得网络侧设备的专用无线资源配置,提高远端终端的通信效率。
本申请实施例中的无线资源控制连接建立装置可以是装置,也可以是终端中的部件、集成电路、或芯片。该装置可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的远端终端13的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例中的无线资源控制连接建立装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统,可以为ios操作系统,还可以为其他可能的操作系统,本申请实施例不作具体限定。
本申请实施例提供的无线资源控制连接建立装置能够实现图2至图6的方法实施例中的远端终端实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
图8示出本申请实施例提供的无线资源控制连接建立装置的另一种结构示意图,该无线资源控制连接建立装置应用于中继终端,如图8所示,该装置800可以包括:第二接收模块801、第二发送模块802、第三接收模块803和第三发送模块804。
在本申请实施例中,第二接收模块801,用于接收远端终端发送的Uu RRC连接建立请求;第二发送模块802,用于向网络侧设备转发所述远端终端的Uu RRC连接建立请求;第三接收模块803,用于接收所述网络侧设备返回的第二RRC专用配置;第三发送模块804,用于基于所述第二RRC专用配置,向所述远端终端发送第一RRC专用配置;所述第二接收模块801,还用于接收所述远端终端发送的Uu RRC连接建立完成消息;所述第二发送模块802,还用于将所述Uu RRC连接建立完成消息发送给所述网络侧设备。
在一个可能的实现方式中,所述第二发送模块802向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
若所述中继终端配置了专用于中继服务的RACH资源,则发起基于竞争解决的RACH过程,接入成功后,向所述网络侧设备发送所述远端终端的Uu RRC连接建立请求。
在一个可能的实现方式中,所述第二发送模块802向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
若所述中继终端未配置有专用于中继服务的RACH资源,则发起基于竞争的RACH过程,接入成功后,向所述网络侧设备发送所述远端终端的Uu  RRC连接建立请求。
在一个可能的实现方式中,如图9所示,该装置还可以包括:设置模块805,用于若在所述基于竞争的RACH过程中,竞争解决成功,则将随机接入响应RAR的临时C-RNTI设置为所述远端终端的C-RNTI。
在一个可能的实现方式中,所述第二RRC专用配置中携带以下至少一项信息:
所述远端终端的SRB 1专用配置;
所述远端终端的SRB 2专用配置;
所述远端终端的SL-RNTI;
所述远端终端的sl-CS-RNTI;
所述远端终端的资源池配置。
在一个可能的实现方式中,所述第二发送模块802向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
通过所述中继终端的SRB1向所述网络侧设备转发所述远端终端的Uu RRC连接建立请求。
在一个可能的实现方式中,所述第二RRC专用配置包括以下至少一项信息:
所述远端终端的C-RNTI;
所述远端终端的SRB 1专用配置;
所述远端终端的SRB 2专用配置;
所述远端终端的SL-RNTI;
所述远端终端的sl-CS-RNTI;
所述远端终端的资源池配置。
在一个可能的实现方式中,所述第三接收模块803接收所述网络侧设备返回的第二RRC专用配置,包括:
接收所述网络侧设备通过专用RRC消息发送的所述第二RRC专用配置; 或者,
接收所述网络侧设备发送的RRC消息,其中,所述RRC消息的专用信息单元中携带有所述第二RRC专用配置。
在一个可能的实现方式中,所述第二发送模块802将所述Uu RRC连接建立完成消息发送给所述网络侧设备,包括:
在所述远端终端的SRB 1上发送所述Uu RRC连接建立完成消息;或者,
发送所述Uu RRC连接建立完成消息,其中,所述Uu RRC连接建立完成消息携带有指示信息,所述指示信息指示所述Uu RRC连接建立完成消息为所述远端终端的。
在一个可能的实现方式中,所述第一RRC专用配置包括为所述第二RRC专用配置中的部分或全部信息。
本申请实施例中的无线资源控制连接建立装置可以是装置,也可以是终端中的部件、集成电路、或芯片。该装置可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的中继终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例中的无线资源控制连接建立装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统,可以为ios操作系统,还可以为其他可能的操作系统,本申请实施例不作具体限定。
本申请实施例提供的无线资源控制连接建立装置能够实现图2至图6的方法实施例中的中继终端实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
图10示出本申请实施例提供的无线资源控制连接建立装置的又一种结构示意图,该装置可以应用于网络侧设备。如图10所示,该装置1000可以包括:第四接收模块1001、配置模块1002和第四发送模块1003。
在本申请实施例中,第四接收模块1001,用于接收中继终端转发的远端终端的Uu RRC连接建立请求;配置模块1002,用于基于所述Uu RRC连接建立请求,为所述远端终端配置第二RRC专用配置,其中,所述第二RRC专用配置中携带以下至少一项信息:所述远端终端的SRB 1专用配置;所述远端终端的SRB 2专用配置;所述远端终端的SL-RNTI;所述远端终端的sl-CS-RNTI;所述远端终端的资源池配置;第四发送模块1003,用于向所述中继终端发送所述第二RRC专用配置;所述第四接收模块1001,还用于接收所述中继终端发送的Uu RRC连接建立完成消息。
在一个可能的实现方式中,所述第四发送模块1003向所述中继终端发送所述第二RRC专用配置,包括:
通过专用RRC消息发送的所述第二RRC专用配置;或者,
发送RRC消息,其中,所述RRC消息的专用信息单元中携带有所述第二RRC专用配置。
本申请实施例中的无线资源控制连接建立装置可以是装置,也可以是网络侧设备中的部件、集成电路、或芯片。该装置可以是网络侧设备。示例性的,网络侧设备可以包括但不限于上述所列举的网络侧设备12的类型,本申请实施例不作具体限定。
本申请实施例中的无线资源控制连接建立装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统,可以为ios操作系统,还可以为其他可能的操作系统,本申请实施例不作具体限定。
本申请实施例提供的无线资源控制连接建立装置能够实现图2至图6的方法实施例中网络侧设备(例如,基站)实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图11所示,本申请实施例还提供一种通信设备1100,包括处理器1101,存储器1102,存储在存储器1102上并可在所述处理器1101上运行的程序或指令,例如,该通信设备1100为终端时,该程序或指令被处理 器1101执行时实现上述无线资源控制连接建立方法实施例的各个过程,且能达到相同的技术效果。该通信设备1100为网络侧设备时,该程序或指令被处理器1101执行时实现上述无线资源控制连接建立方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
图12为实现本申请实施例的一种终端的硬件结构示意图。
该终端1200包括但不限于:射频单元1201、网络模块1202、音频输出单元1203、输入单元1204、传感器1205、显示单元1206、用户输入单元1207、接口单元1208、存储器1209、以及处理器1210等部件。
本领域技术人员可以理解,终端1200还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1210逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图 12中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1204可以包括图形处理器(Graphics Processing Unit,GPU)12041和麦克风12042,图形处理器12041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1206可包括显示面板12061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板12061。用户输入单元1207包括触控面板12071以及其他输入设备12072。触控面板12071,也称为触摸屏。触控面板12071可包括触摸检测装置和触摸控制器两个部分。其他输入设备12072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1201将来自网络侧设备的下行数据接收后,给处理器1210处理;另外,将上行的数据发送给网络侧设备。通常,射频单元1201包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1209可用于存储软件程序或指令以及各种数据。存储器1209可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1209可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-OnlyMemory,ROM)、可编程只读存储器(ProgrammableROM,PROM)、可擦除可编程只读存储器(ErasablePROM,EPROM)、电可擦除可编程只读存储器(ElectricallyEPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器1210可包括一个或多个处理单元;可选的,处理器1210可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1210中。
其中,射频单元1201用于向中继终端发送Uu无线资源控制RRC连接建立请求;接收所述中继终端返回的第一RRC专用配置;向所述中继终端发送Uu RRC连接建立完成消息
处理器1210,用于应用所述第一RRC专用配置。
或者,
射频单元1201用于:
接收远端终端发送的Uu RRC连接建立请求;
向网络侧设备转发所述远端终端的Uu RRC连接建立请求;
接收所述网络侧设备返回的第二RRC专用配置;
基于所述第二RRC专用配置,向所述远端终端发送第一RRC专用配置;
接收所述远端终端发送的Uu RRC连接建立完成消息;
将所述Uu RRC连接建立完成消息发送给所述网络侧设备。
通过本申请实施例提供的终端,作为远端终端,可以向中继终端发送Uu  RRC连接建立请求,由中继终端将该Uu RRC连接建立请求转发给网络侧设备,网络侧设备基于该请求,为远端终端配置RRC专用配置,由网络侧设备将该RRC专用配置转发远端终端,从而使得远端终端即使处于网络覆盖外也能处于RRC连接态,获得网络侧设备的专用无线资源配置,提高远端终端的通信效率。
具体地,本申请实施例还提供了一种网络侧设备。如图13所示,该网络设备1300包括:天线1301、射频装置1302、基带装置1303。天线1301与射频装置1302连接。在上行方向上,射频装置1302通过天线1301接收信息,将接收的信息发送给基带装置1303进行处理。在下行方向上,基带装置1303对要发送的信息进行处理,并发送给射频装置1302,射频装置1302对收到的信息进行处理后经过天线1301发送出去。
上述频带处理装置可以位于基带装置1303中,以上实施例中网络侧设备执行的方法可以在基带装置1303中实现,该基带装置1303包括处理器1304和存储器1305。
基带装置1303例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图13所示,其中一个芯片例如为处理器1304,与存储器1305连接,以调用存储器1305中的程序,执行以上方法实施例中所示的网络设备操作。
该基带装置1303还可以包括网络接口1306,用于与射频装置1302交互信息,该接口例如为通用公共无线接口(common public radio interface,简称CPRI)。
具体地,本发明实施例的网络侧设备还包括:存储在存储器1305上并可在处理器1304上运行的指令或程序,处理器1304调用存储器1305中的指令或程序执行图10所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述图2至图6所示的无线资 源控制连接建立方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行网络侧设备程序或指令,实现上述图2至图6所示的无线资源控制连接建立方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序产品,该计算机程序产品包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现上述图2至图6所示的无线资源控制连接建立方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省 去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (40)

  1. 一种无线资源控制连接建立方法,包括:
    远端终端向中继终端发送Uu无线资源控制RRC连接建立请求;
    接收所述中继终端返回的第一RRC专用配置,并应用所述第一RRC专用配置;
    向所述中继终端发送Uu RRC连接建立完成消息。
  2. 根据权利要求1所述的方法,其中,远端终端向中继终端发送Uu无线资源控制RRC连接建立请求,包括以下任一项:
    所述远端终端通过第一副链路RRC消息发送所述Uu RRC连接建立请求,其中,所述第一副链路RRC消息专用于发送Uu RRC连接建立请求;
    所述远端终端发送第二副链路RRC消息,其中,所述第二副链路RRC消息的专用信息单元携带所述Uu RRC连接建立请求;
    所述远端终端发送第三副链路RRC消息,其中,所述第三副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立请求。
  3. 根据权利要求1所述的方法,其中,所述Uu RRC连接建立请求中携带以下至少一项信息:
    所述远端终端的身份标识;
    连接建立请求的原因。
  4. 根据权利要求1所述的方法,其中,接收所述中继终端返回的第一RRC专用配置,包括以下任一项:
    接收所述中继终端通过第四副链路RRC消息发送所述第一RRC专用配置,其中,所述第四副链路RRC消息专用于发送RRC专用配置;
    接收所述中继终端发送的第五副链路RRC消息,其中,所述第五副链路RRC的专用信息单元中携带有所述第一RRC专用配置;
    接收所述中继终端发送的第六副链路RRC消息,其中,所述第六副链路RRC消息的专用Uu RRC容器中携带有所述第一RRC专用配置。
  5. 根据权利要求1所述的方法,其中,向所述中继终端发送Uu RRC连 接建立完成消息,包括以下任一项:
    所述远端终端通过第七副链路RRC消息发送所述Uu RRC连接建立完成消息,其中,所述第七副链路RRC消息专用于发送Uu RRC连接建立完成消息;
    所述远端终端发送第八副链路RRC消息,其中,所述第八副链路RRC消息的专用信息单元携带所述Uu RRC连接建立完成消息;
    所述远端终端发送第九副链路RRC消息,其中,所述第九副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立完成消息。
  6. 根据权利要求1至5任一项所述的方法,其中,所述第一RRC专用配置携带以下至少一项信息:
    所述远端终端的信令无线承载SRB1专用配置;
    所述远端终端的SRB2专用配置;
    所述远端终端的副链路无线网络临时标识SL-RNTI;
    所述远端终端的副链路配置调度无线网络临时标识SL-CS-RNTI;
    所述远端终端的资源池配置。
  7. 一种无线资源控制连接建立方法,包括:
    中继终端接收远端终端发送的Uu RRC连接建立请求;
    向网络侧设备转发所述远端终端的Uu RRC连接建立请求;
    接收所述网络侧设备返回的第二RRC专用配置;
    基于所述第二RRC专用配置,向所述远端终端发送第一RRC专用配置;
    接收所述远端终端发送的Uu RRC连接建立完成消息;
    将所述Uu RRC连接建立完成消息发送给所述网络侧设备。
  8. 根据权利要求7所述的方法,其中,向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
    若所述中继终端配置了专用于中继服务的随机接入信道RACH资源,则发起基于竞争解决的RACH过程,接入成功后,向所述网络侧设备发送所述远端终端的Uu RRC连接建立请求。
  9. 根据权利要求8所述的方法,其中,向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
    若所述中继终端未配置有专用于中继服务的RACH资源,则发起基于竞争的RACH过程,接入成功后,向所述网络侧设备发送所述远端终端的Uu RRC连接建立请求。
  10. 根据权利要求9所述的方法,其中,所述方法还包括:
    若在所述基于竞争的RACH过程中,竞争解决成功,则所述中继终端将随机接入响应RAR的临时小区无线网络临时标识C-RNTI设置为所述远端终端的C-RNTI。
  11. 根据权利要求8所述的方法,其中,所述第二RRC专用配置中携带以下至少一项信息:
    所述远端终端的SRB1专用配置;
    所述远端终端的SRB2专用配置;
    所述远端终端的SL-RNTI;
    所述远端终端的SL--CS-RNTI;
    所述远端终端的资源池配置。
  12. 根据权利要求7所述的方法,其中,向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
    通过所述中继终端的SRB1向所述网络侧设备转发所述远端终端的Uu RRC连接建立请求。
  13. 根据权利要求12所述的方法,其中,所述第二RRC专用配置包括以下至少一项信息:
    所述远端终端的C-RNTI;
    所述远端终端的SRB1专用配置;
    所述远端终端的SRB2专用配置;
    所述远端终端的SL-RNTI;
    所述远端终端的SL-CS-RNTI;
    所述远端终端的资源池配置。
  14. 根据权利要求7至13任一项所述的方法,其中,接收所述网络侧设备返回的第二RRC专用配置,包括:
    接收所述网络侧设备通过专用RRC消息发送的所述第二RRC专用配置;或者,
    接收所述网络侧设备发送的RRC消息,其中,所述RRC消息的专用信息单元中携带有所述第二RRC专用配置。
  15. 根据权利要求7至13任一项所述的方法,其中,将所述Uu RRC连接建立完成消息发送给所述网络侧设备,包括:
    在所述远端终端的SRB 1上发送所述Uu RRC连接建立完成消息;或者,发送所述Uu RRC连接建立完成消息,其中,所述Uu RRC连接建立完成消息携带有指示信息,所述指示信息指示所述Uu RRC连接建立完成消息为所述远端终端的。
  16. 根据权利要求7至13任一项所述的方法,其中,所述第一RRC专用配置包括为所述第二RRC专用配置中的部分或全部信息。
  17. 一种无线资源控制连接建立方法,包括:
    网络侧设备接收中继终端转发的远端终端的Uu RRC连接建立请求;
    基于所述Uu RRC连接建立请求,为所述远端终端配置第二RRC专用配置,其中,所述第二RRC专用配置中携带以下至少一项信息:所述远端终端的SRB 1专用配置;所述远端终端的SRB 2专用配置;所述远端终端的SL-RNTI;所述远端终端的SL--CS-RNTI;所述远端终端的资源池配置;
    向所述中继终端发送所述第二RRC专用配置;
    接收所述中继终端发送的Uu RRC连接建立完成消息。
  18. 根据权利要求17所述的方法,其中,向所述中继终端发送所述第二RRC专用配置,包括:
    所述网络侧设备通过专用RRC消息发送的所述第二RRC专用配置;或者,
    所述网络侧设备发送RRC消息,其中,所述RRC消息的专用信息单元中携带有所述第二RRC专用配置。
  19. 一种无线资源控制连接建立装置,应用于远端终端,所述装置包括:
    第一发送模块,用于向中继终端发送Uu RRC连接建立请求;
    第一接收模块,用于接收所述中继终端返回的第一RRC专用配置,并应用所述第一RRC专用配置;
    所述第一发送模块,还用于向所述中继终端发送Uu RRC连接建立完成消息。
  20. 根据权利要求19所述的装置,其中,所述第一发送模块向中继终端发送Uu无线资源控制RRC连接建立请求,包括以下任一项:
    通过第一副链路RRC消息发送所述Uu RRC连接建立请求,其中,所述第一副链路RRC消息专用于发送Uu RRC连接建立请求;
    发送第二副链路RRC消息,其中,所述第二副链路RRC消息的专用信息单元携带所述第一所述Uu RRC连接建立请求;
    发送第三副链路RRC消息,其中,所述第三副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立请求。
  21. 根据权利要求19所述的装置,其中,所述第一接收模块接收所述中继终端返回的第一RRC专用配置,包括以下任一项:
    接收所述中继终端通过第四副链路RRC消息发送所述第一RRC专用配置,其中,所述第四副链路RRC消息专用于发送RRC专用配置;
    接收所述中继终端发送的第五副链路RRC消息,其中,所述第五副链路RRC的专用信息单元中携带有所述第一RRC专用配置;
    接收所述中继终端发送的第六副链路RRC消息,其中,所述第六副链路RRC消息的专用Uu RRC容器中携带有所述第一RRC专用配置。
  22. 根据权利要求19所述的装置,其中,所述第一发送模块向所述中继终端发送Uu RRC连接建立完成消息,包括以下任一项:
    通过第七副链路RRC消息发送所述Uu RRC连接建立完成消息,其中, 所述第七副链路RRC消息专用于发送Uu RRC连接建立完成消息;
    发送第八副链路RRC消息,其中,所述第八副链路RRC消息的专用信息单元携带所述Uu RRC连接建立完成消息;或者,
    发送第九副链路RRC消息,其中,所述第九副链路RRC消息的专用Uu RRC容器中携带所述Uu RRC连接建立完成消息。
  23. 根据权利要求19至22任一项所述的装置,其中,所述第一RRC专用配置携带以下至少一项信息:
    所述远端终端的信令无线承载SRB1专用配置;
    所述远端终端的SRB2专用配置;
    所述远端终端的副链路无线网络临时标识SL-RNTI;
    所述远端终端的副链路配置调度无线网络临时标识SL--CS-RNTI;
    所述远端终端的资源池配置。
  24. 一种无线资源控制连接建立装置,应用于中继终端,所述装置包括:
    第二接收模块,用于接收远端终端发送的Uu RRC连接建立请求;
    第二发送模块,用于向网络侧设备转发所述远端终端的Uu RRC连接建立请求;
    第三接收模块,用于接收所述网络侧设备返回的第二RRC专用配置;
    第三发送模块,用于基于所述第二RRC专用配置,向所述远端终端发送第一RRC专用配置;
    所述第二接收模块,还用于接收所述远端终端发送的Uu RRC连接建立完成消息;
    所述第二发送模块,还用于将所述Uu RRC连接建立完成消息发送给所述网络侧设备。
  25. 根据权利要求24所述的装置,其中,所述第二发送模块向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
    若所述中继终端配置了专用于中继服务的RACH资源,则发起基于竞争解决的RACH过程,接入成功后,向所述网络侧设备发送所述远端终端的 Uu RRC连接建立请求。
  26. 根据权利要求25所述的装置,其中,所述第二发送模块向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
    若所述中继终端未配置有专用于中继服务的RACH资源,则发起基于竞争的RACH过程,接入成功后,向所述网络侧设备发送所述远端终端的Uu RRC连接建立请求。
  27. 根据权利要求26所述的装置,其中,还包括:
    设置模块,用于若在所述基于竞争的RACH过程中,竞争解决成功,则将随机接入响应RAR的临时C-RNTI设置为所述远端终端的C-RNTI。
  28. 根据权利要求25所述的装置,其中,所述第二RRC专用配置中携带以下至少一项信息:
    所述远端终端的SRB1专用配置;
    所述远端终端的SRB2专用配置;
    所述远端终端的SL-RNTI;
    所述远端终端的SL--CS-RNTI;
    所述远端终端的资源池配置。
  29. 根据权利要求24所述的装置,其中,所述第二发送模块向网络侧设备转发所述远端终端的Uu RRC连接建立请求,包括:
    通过所述中继终端的SRB1向所述网络侧设备转发所述远端终端的Uu RRC连接建立请求。
  30. 根据权利要求29所述的装置,其中,所述第二RRC专用配置包括以下至少一项信息:
    所述远端终端的C-RNTI;
    所述远端终端的SRB1专用配置;
    所述远端终端的SRB2专用配置;
    所述远端终端的SL-RNTI;
    所述远端终端的SL--CS-RNTI;
    所述远端终端的资源池配置。
  31. 根据权利要求24至30任一项所述的装置,其中,所述第三接收模块接收所述网络侧设备返回的第二RRC专用配置,包括:
    接收所述网络侧设备通过专用RRC消息发送的所述第二RRC专用配置;或者,
    接收所述网络侧设备发送的RRC消息,其中,所述RRC消息的专用信息单元中携带有所述第二RRC专用配置。
  32. 根据权利要求24至30任一项所述的装置,其中,所述第二发送模块将所述Uu RRC连接建立完成消息发送给所述网络侧设备,包括:
    在所述远端终端的SRB 1上发送所述Uu RRC连接建立完成消息;或者,发送所述Uu RRC连接建立完成消息,其中,所述Uu RRC连接建立完成消息携带有指示信息,所述指示信息指示所述Uu RRC连接建立完成消息为所述远端终端的。
  33. 一种无线资源控制连接建立装置,应用于网络侧设备,所述装置包括:
    第四接收模块,用于接收中继终端转发的远端终端的Uu RRC连接建立请求;
    配置模块,用于基于所述Uu RRC连接建立请求,为所述远端终端配置第二RRC专用配置,其中,所述第二RRC专用配置中携带以下至少一项信息:所述远端终端的SRB 1专用配置;所述远端终端的SRB 2专用配置;所述远端终端的SL-RNTI;所述远端终端的SL--CS-RNTI;所述远端终端的资源池配置;
    第四发送模块,用于向所述中继终端发送所述第二RRC专用配置;
    所述第四接收模块,还用于接收所述中继终端发送的Uu RRC连接建立完成消息。
  34. 根据权利要求33所述的装置,其中,所述第四发送模块向所述中继终端发送所述第二RRC专用配置,包括:
    通过专用RRC消息发送的所述第二RRC专用配置;或者,
    发送RRC消息,其中,所述RRC消息的专用信息单元中携带有所述第二RRC专用配置。
  35. 一种终端,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至6任一项所述的无线资源控制连接建立方法的步骤,或者实现如权利要求7至16任一项所述无线资源控制连接建立方法的步骤。
  36. 一种网络侧设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求17至18任一项所述的无线资源控制连接建立方法的步骤。
  37. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被所述处理器执行时:
    实现如权利要求1-6任一项所述的无线资源控制连接建立方法;或者
    实现如权利要求7至16任一项所述的无线资源控制连接建立方法的步骤;或者
    实现如权利要求17至18任一项所述的无线资源控制连接建立方法的步骤。
  38. 一种计算机程序产品,所述计算机程序产品存储在非易失的可读存储介质,所述计算机程序产品被处理器执行时:
    实现如权利要求1-6任一项所述的无线资源控制连接建立方法;或者
    实现如权利要求7至16任一项所述的无线资源控制连接建立方法的步骤;或者
    实现如权利要求17至18任一项所述的无线资源控制连接建立方法的步骤。
  39. 一种终端,用于执行如权利要求1至6任一项所述的无线资源控制连接建立方法的步骤,或者执行如权利要求7至16任一项所述无线资源控制连接建立方法的步骤。
  40. 一种网络侧设备,用于执行如权利要求17至18任一项所述的无线 资源控制连接建立方法的步骤。
PCT/CN2021/112256 2020-08-13 2021-08-12 无线资源控制连接建立方法、装置、终端及网络侧设备 WO2022033549A1 (zh)

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