WO2024065116A1 - 资源选择方法、装置、用户设备、基站、存储介质与芯片 - Google Patents

资源选择方法、装置、用户设备、基站、存储介质与芯片 Download PDF

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Publication number
WO2024065116A1
WO2024065116A1 PCT/CN2022/121489 CN2022121489W WO2024065116A1 WO 2024065116 A1 WO2024065116 A1 WO 2024065116A1 CN 2022121489 W CN2022121489 W CN 2022121489W WO 2024065116 A1 WO2024065116 A1 WO 2024065116A1
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WIPO (PCT)
Prior art keywords
user equipment
base station
resource
transmission
sending
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PCT/CN2022/121489
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English (en)
French (fr)
Inventor
杨星
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/121489 priority Critical patent/WO2024065116A1/zh
Priority to CN202280003520.0A priority patent/CN116097867A/zh
Publication of WO2024065116A1 publication Critical patent/WO2024065116A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a resource selection method, device, user equipment, base station, storage medium and chip.
  • the sidelink communication mode is introduced.
  • UE and UE can communicate through the PC-5 interface (direct communication interface).
  • PC-5 interface direct communication interface
  • a UE needs to communicate with a base station but is out of the coverage of the base station network, it can use another UE within the coverage of the base station network to communicate with the base station.
  • the UE that is not connected to the base station is called a remote UE, and the UE that provides relay function is called a relay UE.
  • the remote UE and the relay UE can communicate in unicast, multicast and broadcast through the sidelink.
  • the remote UE can use the transmission resource pool in the system information to perform sidelink transmission.
  • the transmission resource pool does not exist in the system information, the remote UE has no available transmission resource pool for sidelink transmission, resulting in interruption of communication between the remote UE and the relay UE.
  • the present disclosure provides a resource selection method, device, user equipment, base station, storage medium and chip.
  • a resource selection method which is applied to a user equipment, and the method includes:
  • the preconfigured transmission resources are used for sidelink transmission.
  • a resource selection method which is applied to a base station, and the method includes:
  • Sidelink reception is performed to obtain a resource request of a user equipment, wherein the resource request is sent by the user equipment using preconfigured transmission resources when no transmission resource pool exists in system information.
  • a resource selection device which is applied to a user equipment, including:
  • the resource request sending module is configured to use the pre-configured sending resources for side link sending in response to the absence of a sending resource pool in the received system information.
  • a resource selection device which is applied to a base station, including:
  • the resource request receiving module is configured to perform sidelink reception to obtain a resource request of a user equipment, wherein the resource request is sent by the user equipment using preconfigured sending resources when there is no sending resource pool in the system information.
  • a user equipment including:
  • a memory for storing processor-executable instructions
  • the processor is configured to implement the steps of the resource selection method provided in the first aspect of the embodiment of the present disclosure when executing the executable instructions.
  • a base station including:
  • a memory for storing processor-executable instructions
  • the processor is configured to implement the steps of the resource selection method provided in the second aspect of the embodiment of the present disclosure when executing the executable instructions.
  • a computer-readable storage medium on which computer program instructions are stored.
  • the program instructions are executed by a processor, the steps of the resource selection method provided in the first aspect of the present disclosure are implemented, or the steps of the resource selection method provided in the second aspect of the present disclosure are implemented.
  • a chip comprising a processor and an interface; the processor is used to read instructions to execute the steps of the resource selection method provided in the first aspect of the present disclosure, or to execute the steps of the resource selection method provided in the second aspect of the present disclosure.
  • the remote UE can use the pre-configured sending resources to continue the side link transmission, so that the remote UE can interact with the relay UE or base station for data or signaling, avoiding communication or service interruption of the remote UE.
  • Fig. 1 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 2 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 3 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 4 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 5 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 6 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 7 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 8 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 9 is a flow chart showing a resource selection method according to an exemplary embodiment.
  • Fig. 10 is a flowchart showing a resource selection method according to an exemplary embodiment.
  • Fig. 11 is a block diagram showing a resource selection device according to an exemplary embodiment.
  • Fig. 12 is a block diagram showing a resource selection device according to an exemplary embodiment.
  • Fig. 13 is a block diagram showing a user equipment according to an exemplary embodiment.
  • Fig. 14 is a block diagram of a base station according to an exemplary embodiment.
  • FIG1 is a flow chart of a resource selection method according to an exemplary embodiment. As shown in FIG1 , the resource selection method may be applied to a user equipment, and the user equipment may be the above-mentioned remote UE. The method includes the following steps.
  • step S101 in response to the absence of a transmission resource pool in the received system information, a preconfigured transmission resource is used for sidelink transmission.
  • SL sidelink
  • UEs can communicate directly with each other through the PC-5 interface.
  • three modes of unicast, multicast and broadcast are supported on the sidelink.
  • the sending UE sends sidelink control information SCI (Sidelink Control Information) on PSCCH (Physical Sidelink Control Channel) and sends the second stage SCI on PSSCH (Physical Sidelink Shared Channel), where SCI carries the resource location of the transmission data, the source UE identifier and the destination UE identifier, etc.; after receiving the SCI, the receiving UE determines whether to receive the corresponding data and which process it corresponds to based on the source UE identifier and the destination UE identifier.
  • SCI Servicelink Control Information
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • the network dynamic scheduling method is that the base station dynamically allocates transmission resources on the Sidelink to the UE according to the buffered data report of the UE, and the UE may be a relay UE covered by the base station network.
  • Autonomous selection means that the UE randomly selects transmission resources from the transmission resource pool in the system information or the pre-configured transmission resources or the transmission resources in the RRC (Radio Resource Control) reconfiguration message.
  • the base station can send system information to the remote UE.
  • the base station can generate system information based on whether there are resource pools in the network and which resource pools there are; the base station then broadcasts the system information, and the UE covered by the base station network obtains the system information.
  • These UEs can act as relay UEs to forward the system information to remote UEs.
  • the remote UE When the remote UE is in an idle state or an inactive state, it can use the sending resource pool in the system information broadcast by the base station to perform side link transmission; for the RRC reconfiguration message, the RRC reconfiguration message is a message generated by the base station based on the resource request reported by the UE. The message carries the sending resources returned by the base station to the UE.
  • the UE When the UE enters the connected state, the UE can use the sending resources in the reconfiguration message for side link transmission; the pre-configured sending resources are sending resources pre-configured in the remote UE.
  • the UE When the UE is in an offline state, the UE can use the pre-configured sending resources for side link transmission.
  • the offline state includes that the UE is not covered by the base station network.
  • the sending resources of the system information and the RRC reconfiguration message are both sent by the base station, the pre-configured sending resource pool is pre-configured by the UE, and the system information may be SIB12.
  • the sending resources in the RRC reconfiguration message can be a sending resource pool, and the UE can select at least one sending resource from the sending resource pool for side link transmission;
  • the preconfigured sending resources can be a preconfigured sending resource pool, and the UE can select at least one sending resource from the preconfigured sending resource pool for side link transmission.
  • the transmission resource pool can be a relay sidelink transmission resource pool, and the transmission resource can be a relay sidelink transmission resource.
  • the relay sidelink includes a remote UE, a relay UE and a base station, and the remote UE and the base station interact with each other through the relay UE.
  • the relay sidelink transmission resource is a sidelink transmission resource
  • the relay sidelink transmission resource pool is a sidelink transmission resource pool.
  • the sidelink transmission resources are resource parameters in the time domain and frequency domain.
  • Each base station can schedule the sidelink transmission resources of the corresponding time period from the sidelink transmission resource pool through the time domain, and determine the corresponding sidelink transmission resources from the sidelink transmission resource pool through the frequency domain to meet the UE's resource request.
  • the 4G base station schedules the sidelink transmission resources in the sidelink transmission resource pool through DCI (Downlink Control Information), wherein the time domain carried in the DCI is set to 10:00-11:00, and the frequency domain is set to 1880MHz-1900MHz. Then, the UE determines the sidelink transmission resources of the frequency domain segment 1880MHz-1900MHz in the period from 10:00 to 11:00 according to the DCI as the feedback of the UE's transmission resource request.
  • DCI Downlink Control Information
  • the resource pool of the network dynamic scheduling mode and the resource pool of the autonomous selection mode are separate.
  • the network dynamic scheduling is performed by the base station to uniformly allocate the sending resources, so a reasonable algorithm can be used to avoid collisions between different UEs.
  • the base station can carry the transmission resource pool in the system information, and the UE uses the transmission resource pool in the system information for autonomous selection.
  • There are two types of transmission resource pools in the system information one is the general transmission resource pool (sl-TxPoolSelectedNormal), and the other is the special transmission resource pool (sl-TxPoolExceptional). If the system information carries the general transmission resource pool, the UE uses the general transmission resource pool; if the system information does not carry the general transmission resource pool, the UE uses the special transmission resource pool. If the system information does not carry any transmission resource pool, the UE needs to use the pre-configured transmission resources for sidelink transmission.
  • the sidelink transmission may be sidelink transmission, and during the sidelink transmission, the remote UE may carry data or instructions sent to the relay UE or the base station and transmit them in the sidelink.
  • the remote UE may carry a resource request sent to the base station, or may carry an RRC reconfiguration message sent to the remote UE by the base station.
  • the user device proposed in any embodiment of the present disclosure may be a mobile phone, a tablet, a portable computer, a computer with wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc.
  • the present disclosure does not limit the application scenario, and the user device may sometimes also be referred to as a terminal device, a terminal, an access terminal, a UE unit, a UE station, a mobile device, a mobile station, a mobile station, a mobile client, etc.
  • the preconfigured sending resources can be configured in advance in the UE by the developer.
  • the preconfigured sending resources are resource parameters in the time domain and frequency domain.
  • the frequency domain segment, time period, available duration and bandwidth of the sending resources can be pre-configured in the UE.
  • the UE can obtain the system information broadcast by the base station, so that the relay UE located within the coverage of the base station network can obtain the system information broadcast by the base station.
  • the relay UE can forward the obtained system information of the base station to the remote UE; when the remote UE determines that the system information does not carry the transmission resource pool, it is unable to perform sidelink transmission at this time. In order to be able to perform sidelink transmission, it can continue to use the pre-configured transmission resources for sidelink transmission.
  • the remote UE can use the pre-configured sending resources to continue side link transmission, so that the remote UE can interact with the relay UE or base station for data or signaling, avoiding communication or service interruption of the remote UE.
  • Fig. 2 is a flow chart showing a resource selection method according to an exemplary embodiment. As shown in Fig. 2 , the resource selection method is applied in a user equipment, and the method includes the following steps.
  • step S201 in response to receiving system information sent by the relay device indicating that the transmission resource pool does not exist, the preconfigured transmission resources are used to perform sidelink transmission.
  • this embodiment is applied to a user device, which may be the above-mentioned remote UE that interacts with the base station through the relay UE, and the communication signal between the remote UE and the relay UE may be sent using sidelink unicast; the relay device may be a relay UE, used to establish a communication connection between the remote UE and the base station, and the relay device is covered by the base station network.
  • the base station can broadcast system information through the network, and the relay UE covered by the base station network can receive the system information, so the remote UE can respond to the absence of a transmission resource pool in the system information of the base station of the relay UE and use the pre-configured transmission resources for sidelink transmission.
  • the remote UE receives the system information sent by the relay UE, which can be obtained by the relay UE from the base station.
  • the coverage area of the base station network is the service cell, and the relay UE can obtain the system information broadcast by the base station from the service cell.
  • the service cell is the area covered by the base station or part of the base station in the communication system, and the UEs in this area can communicate with each other through wireless channels.
  • a UE can communicate with the base station through the relay of another UE instead of directly connecting to the base station.
  • the UE that is not connected to the base station is called the remote UE, and the UE that provides relay function is called the relay UE.
  • the remote UE and the relay UE communicate through sidelink unicast. This architecture is called U2N (UE to NW) relay.
  • the remote UE can use the pre-configured transmission resources to perform sidelink transmission, so as to exchange signaling and data with the relay UE.
  • the remote UE can send a system information request to the relay UE through preconfigured transmission resources, and the system information request carries the requested system information identifier; the relay UE determines the system information according to the system information identifier and returns the system information to the remote UE.
  • the relay UE can obtain the system information broadcast by the base station.
  • the method may also include: receiving a system message, which may be broadcast by a base station.
  • a system message which may be broadcast by a base station.
  • the remote UE When the remote UE is covered by the base station network, the remote UE directly receives the system message broadcast by the base station; when the remote UE is not covered by the base station network, the base station may also send the system message to the relay UE and the relay UE may forward the system message to the remote UE, which is not limited in the present disclosure.
  • the remote UE can receive the system information obtained by the relay UE from the base station; when it is determined that there is no sending resource pool in the system information, the pre-configured sending resources are used for side link transmission to ensure the communication connection between the remote UE and the relay UE, avoiding communication and service interruption of the remote UE.
  • Fig. 3 is a flow chart showing a resource selection method according to an exemplary embodiment. As shown in Fig. 3 , the resource selection method is applied in a user equipment, and the method includes the following steps.
  • step S301 when the sending resource pool does not exist in the system information, the connection state is entered.
  • the remote UE when the remote UE receives system information and determines that there is no transmission resource pool in the system information, the remote UE enters a connected state.
  • the remote UE entering the connected state indicates that the remote UE needs to interact with the relay UE or the base station for data or signaling, and the remote UE is in an offline state.
  • step S302 a sending resource is requested from a base station according to the preconfigured sending resource.
  • the remote UE can use the pre-configured sending resources in the remote UE to send a resource request to the relay UE, and the relay UE forwards the resource request to the base station.
  • the relay UE since the relay UE is covered by the base station network, the relay UE can forward the resource request sent by the remote UE to the base station; the resource request is used to request the base station to send resources so that the remote UE can use the sending resources allocated by the base station to communicate with the base station or relay UE.
  • step S303 a reconfiguration message returned by the base station is received, wherein the reconfiguration message carries the transmission resources or the transmission resource pool returned by the base station.
  • the base station may generate a reconfiguration message carrying the transmission resource or the transmission resource pool to return the transmission resource or the transmission resource pool to the remote UE.
  • the reconfiguration message may be an RRC reconfiguration message, which is generated by the base station according to the resource request reported by the remote UE and is used to allocate a transmission resource or a transmission resource pool to the remote UE.
  • the method may also include: receiving a system message, which may be broadcast by a base station.
  • a system message which may be broadcast by a base station.
  • the remote UE When the remote UE is covered by the base station network, the remote UE directly receives the system message broadcast by the base station; when the remote UE is not covered by the base station network, the base station may also send the system message to the relay UE and the relay UE may forward the system message to the remote UE, which is not limited in the present disclosure.
  • the remote UE can receive the system information obtained by the relay UE from the base station; when it is determined that there is no sending resource pool in the system information, the pre-configured sending resources are used for side link transmission to ensure the communication connection between the remote UE and the relay UE, avoiding communication and service interruption of the remote UE.
  • Fig. 4 is a flow chart showing a resource selection method according to an exemplary embodiment. As shown in Fig. 4 , the resource selection method is applied in a user equipment, and the method includes the following steps.
  • step S401 in response to the absence of a transmission resource pool in the received system information, a preconfigured transmission resource is used for sidelink transmission.
  • step S401 in the embodiment of the present disclosure may refer to the above step S201 and will not be described in detail.
  • step S402 upon receiving the transmission resources or the transmission resource pool returned by the base station, stop using the preconfigured transmission resources.
  • the remote UE when the remote UE receives the transmission resources or transmission resource pool returned by the base station, it indicates that the remote UE can use the transmission resources requested from the base station to continue to transmit data or signaling with the base station or relay UE. At this time, the pre-configured transmission resources are no longer used to transmit data or signaling with the base station or relay UE.
  • the base station may package the sending resources or the sending resource pool into reconfiguration information and return it to the remote UE.
  • the remote UE when the remote UE receives the sending resources or sending resource pool carried in the reconfiguration message returned by the base station, it indicates that the remote UE has successfully requested the sending resources from the base station. At this time, the remote UE can use the sending resources allocated by the base station for side link transmission without continuing to use the pre-configured sending resources.
  • Fig. 5 is a flow chart showing a resource selection method according to an exemplary embodiment. As shown in Fig. 5 , the resource selection method is applied in a user equipment, and the method includes the following steps.
  • step S501 when the user equipment meets any of the following conditions, it is determined that the user equipment is connected to the base station through the relay device:
  • the user equipment is not covered by the network
  • the reference signal received power between the user equipment and the base station is less than a threshold
  • the user equipment selects the relay equipment
  • the user equipment is configured with a direct link and an indirect link, and the indirect link is used as a main link.
  • the indirect link is a link for the user equipment to communicate with the base station through the relay device.
  • the remote UE when the remote UE is not covered by the base station network, it indicates that the remote UE needs to connect to the base station through the relay UE and then interact with the base station. Therefore, when the remote UE is not covered by the base station network, the remote UE establishes a connection with the base station through the relay UE.
  • the remote UE when the RSRP (Reference Signal Receiving Power) between the remote UE and the base station is less than the threshold, it means that the network signal received by the remote UE is poor and cannot access the network of the base station. At this time, the remote UE also establishes a connection with the base station through the relay UE.
  • RSRP Reference Signal Receiving Power
  • the remote UE can be directly connected to the base station, and the remote UE can also be connected to the base station through the relay UE.
  • the remote UE selects a relay UE from multiple relay UEs to communicate with the base station, it means that the remote UE is connected to the base station through the relay UE.
  • the remote UE may select a relay UE.
  • the indirect link serves as the SRB main link, it indicates that the indirect link between the remote UE, the relay UE and the base station is the main link for sending data or signaling. At this time, it can be determined that the remote UE is connected to the base station through the relay UE to transmit data or signaling.
  • SRB Signaling Radio Bearer
  • the remote UE is configured with at least one direct link and an indirect link to communicate with the base station.
  • the direct link is the link that the remote UE directly connects to the base station
  • the indirect link is the link that the remote UE communicates with the base station through the relay UE.
  • the indirect link can be determined as the main link by any of the following conditions, and the direct link can also be determined as the main link by any of the following conditions.
  • the indirect link is determined to be the main link by any of the following conditions:
  • the indirect link is used to transmit a radio signaling bearer, and the radio signaling bearer may be an SRB;
  • the indirect link is a main transmission path for transmitting the wireless signaling bearer
  • the indirect link is a path for maintaining the connection between the user equipment and the base station;
  • the indirect link is an anchor path
  • the indirect link is connected to the primary cell of the user equipment.
  • the indirect link is used to transmit SRB, including the indirect link is the main transmission path for transmitting SRB and the indirect link is the non-main transmission path for transmitting SRB; when the indirect link is used to transmit SRB, it can be determined that the indirect link can be used to access the network, and at this time it can be determined that the indirect link is the main link.
  • the indirect link is the main transmission path for transmitting the SRB, it can also be determined that the indirect link is used to access the network, and the indirect link is determined to be the main link.
  • the reconfiguration message is returned by the base station to the remote UE through the relay UE when the remote UE is not covered by the network.
  • the remote UE After receiving the reconfiguration message, the remote UE will establish a connection with the base station based on the sending resources or sending resource pool in the reconfiguration message.
  • This indirect link can realize the main signaling or data forwarding, so it can be used as the main link.
  • the indirect link when the indirect link is the path used to maintain the connection between the remote UE and the base station, it means that the indirect link can realize signaling or data forwarding between the remote UE and the base station, while the other links may not be able to maintain the connection between the remote UE and the base station, and thus cannot realize signaling or data forwarding, so the indirect link can be used as the main link.
  • the indirect path is the main path.
  • the access network equipment that interacts with the core network through control signaling can be called a master node (MN), and other access network equipment can be called a secondary node (SN).
  • MN master node
  • SN secondary node
  • the service cell group provided by the master node for the UE can be called a master cell group (MCG)
  • MCG master cell group
  • SCG secondary cell group
  • the master cell plays a core control role, and the secondary cell is used to assist the master cell in data transmission.
  • the indirect link is connected to the master cell of the remote UE, it means that the indirect link is the main control link, so the indirect link can be used as the main link.
  • the UE is a remote UE that accesses the base station network through a relay UE.
  • the remote UE confirms whether the received system information exists in a sending resource pool. If there is no sending resource pool, pre-configured sending resources are used for side link transmission to avoid communication and service interruption of the remote UE.
  • Fig. 6 is a flow chart showing a resource selection method according to an exemplary embodiment. As shown in Fig. 6 , the resource selection method is applied in a user equipment, and the method includes the following steps.
  • step S601 in response to the absence of a general transmission resource pool and a special transmission resource pool in the system information, the preconfigured transmission resources are used for sidelink transmission.
  • the base station can generate system information based on whether there are resource pools in the network and which resource pools there are.
  • the system information may contain both general transmission resource pools and special transmission resource pools, or one of them, or no transmission resource pool.
  • the remote UE determines that there is no general transmission resource pool or special transmission resource pool in the received system information, it determines that there is no transmission resource pool in the system information.
  • the transmission resources pre-configured by the remote UE can be used for sidelink transmission.
  • step S602 when a general transmission resource pool exists in the system information, sidelink transmission is performed according to the general transmission resource pool.
  • the general transmission resource pool is preferentially used to perform data or signaling interaction with the relay UE or the base station.
  • the remote UE may select at least one transmission resource from the general transmission resource pool to perform sidelink transmission.
  • step S603 when the general transmission resource pool does not exist in the system information and a special transmission resource pool exists, sidelink transmission is performed according to the special transmission resource pool.
  • the special transmission resource pool is used to interact with the relay UE or the base station for data or signaling.
  • the remote UE may select at least one transmission resource from the special transmission resource pool to perform sidelink transmission.
  • the pre-configured transmission resources can be used for sidelink transmission to ensure the normal communication of the remote UE.
  • FIG. 7 is a flow chart showing a resource selection method according to an exemplary embodiment. As shown in FIG. 7 , the resource selection method is applied in a base station, and the method includes the following steps.
  • step S701 sidelink reception is performed to obtain a resource request of a user equipment, wherein the resource request is sent by the user equipment using preconfigured transmission resources when there is no transmission resource pool in system information.
  • the base station may be a base station for public mobile communications, such as the base station of the above-mentioned service cell, and in 5G the base station may be a gNodeB.
  • the sidelink reception may be sidelink reception.
  • the base station may carry data or instructions for interaction between the base station and the relay UE or the remote UE and transmit them in the sidelink.
  • the remote UE may carry a resource request sent to the base station, or may carry an RRC reconfiguration message sent to the remote UE by the base station.
  • the transmission resource pool can be a relay sidelink transmission resource pool, and the transmission resource can be a relay sidelink transmission resource.
  • the relay sidelink includes a remote UE, a relay UE and a base station, and the remote UE and the base station interact with each other through the relay UE.
  • the relay sidelink transmission resource is a sidelink transmission resource
  • the relay sidelink transmission resource pool is a sidelink transmission resource pool.
  • the resource request is sent by the user equipment using the pre-configured sending resource when the system information received from the relay device does not exist in the sending resource pool.
  • the resource request is sent by the user equipment to the base station using the preconfigured sending resource when the sending resource pool does not exist in the system information of the base station of the relay device.
  • the base station can send system resources to the remote UE.
  • the base station broadcasts the system resources in the service cell by broadcasting.
  • the relay UE in the service cell sends the system resources to the remote UE, so that the remote UE can receive the system information from the base station of the relay device.
  • FIG8 is a flow chart of a resource selection method according to an exemplary embodiment. As shown in FIG8 , the resource selection method is applied in a base station, and the method includes the following steps.
  • step S801 a side link reception is performed to obtain a resource request sent by the user equipment using pre-configured sending resources after the user equipment enters a connected state.
  • the remote UE when the remote UE receives system information and determines that there is no transmission resource pool in the system information, the remote UE enters a connected state.
  • the remote UE entering the connected state indicates that the remote UE needs to interact with the relay UE or the base station for data or signaling, and the remote UE is in a state of not being covered by the network.
  • the base station may determine that the remote UE is offline, and the communication or service of the remote UE may be interrupted.
  • step S802 a reconfiguration message is returned to the user equipment, wherein the reconfiguration message carries the transmission resources or the transmission resource pool returned by the base station.
  • the base station may generate a reconfiguration message to allocate transmission resources to the remote UE.
  • the reconfiguration message may be an RRC reconfiguration message, which is generated by the base station in response to the resource request reported by the remote UE.
  • the base station performs dynamic network scheduling
  • the other is a way in which the UE autonomously selects from a resource pool of a reconfiguration message or a preconfigured resource pool or a resource pool of system information.
  • the UE sends a resource request to the base station, and the base station determines to select the dynamic scheduling mode.
  • the base station feeds back the dynamic scheduling indication to the UE, and the dynamic scheduling indication carries the information that the UE needs to report;
  • the UE sends its own cached data to the base station according to the dynamic scheduling indication;
  • the base station dynamically schedules the sending resources according to the cached data, and returns the sending resources to the UE, and the UE realizes communication according to the sending resources.
  • it can be a relay UE covered by the base station network.
  • the remote UE selects the sending resources in the resource pool of the system information to interact with the relay UE or the base station; if the system information received by the remote UE does not carry the sending resource pool, the remote UE can select the sending resources in the pre-configured sending resource pool to interact with the relay UE, and send the resource request to the base station through the relay UE; the base station then generates a reconfiguration message based on the resource request reported by the remote UE, and sends the reconfiguration message to the remote UE through the relay UE.
  • the reconfiguration message may carry the sending resources or sending resource pool sent by the base station to the remote UE.
  • the sending resource or the sending resource pool may be a resource for transmitting data, and the sending resource or the sending resource pool may be used to implement data interaction between the remote UE and other devices.
  • FIG9 is a flow chart of a resource selection method according to an exemplary embodiment. As shown in FIG9 , the resource selection method is applied in a base station, and the method includes the following steps.
  • step S901 sidelink reception is performed to obtain a resource request of a user equipment, wherein the resource request is sent by the user equipment using preconfigured transmission resources when no transmission resource pool exists in system information.
  • the method for side link reception in the embodiment of the present disclosure may refer to the above step S801 and will not be described in detail.
  • step S902 the sending resource or the sending resource pool is returned to the user equipment so that the user equipment stops using the preconfigured sending resource.
  • stopping the use of the preconfigured sending resources may refer to the above step S402, which will not be described in detail.
  • the base station After the base station returns the reconfiguration message to the remote UE, it indicates that the remote UE successfully requests the base station to send resources. At this time, the remote UE can use the sending resources allocated by the base station to transmit signaling or data with the relay UE or base station without continuing to use the pre-configured sending resources.
  • the resource selection method is applied in a base station, and the method includes the following steps.
  • step S110 when the user equipment meets any of the following conditions, it is determined that the user equipment is connected to the base station through the relay device:
  • the user equipment is not covered by the network
  • the reference signal received power between the user equipment and the base station is less than a threshold
  • the user equipment selects the relay equipment
  • the user equipment is configured with a direct link and an indirect link, and the indirect link is used as a main link.
  • the indirect link is a link for the user equipment to communicate with the base station through the relay device.
  • the indirect link serves as the main link when any of the following conditions is met:
  • the indirect link is used to transmit a wireless signaling bearer
  • the indirect link is a main transmission path for transmitting the wireless signaling bearer
  • the indirect link is a path for maintaining the connection between the user equipment and the base station;
  • the indirect link is an anchor path
  • the indirect link is connected to the primary cell of the user equipment.
  • the determination condition for the user equipment to communicate with the base station through the relay device can refer to the above step S501, which will not be described in detail.
  • the UE is a remote UE that accesses the base station network through a relay UE.
  • the remote UE confirms whether the received system information exists in a sending resource pool. If there is no sending resource pool, pre-configured sending resources are used for side link transmission to avoid communication and service interruption of the remote UE.
  • FIG. 10 is a flow chart of a resource selection method according to an exemplary embodiment. As shown in FIG. 10 , the resource selection method is applied in a base station, and the method includes the following steps.
  • step S220 when there is neither a general transmission resource pool nor a special transmission resource pool in the system information, side link reception is performed to obtain a resource request of the user equipment.
  • determining the resource request of the user equipment may refer to the above step S601, which will not be described in detail.
  • step S221 when a general transmission resource pool exists in the system information, a resource request sent by the user equipment according to the general transmission resource pool is received.
  • the general sending resource pool in the embodiment of the present disclosure can refer to the above step S602, which will not be repeated here.
  • step S222 when the general transmission resource pool does not exist in the system information and a special transmission resource pool exists, a resource request sent by the user equipment according to the special transmission resource pool is received.
  • the special transmission resource pool in the embodiment of the present disclosure can refer to the above step S603, which will not be repeated here.
  • Fig. 11 is a block diagram of a resource selection device according to an exemplary embodiment.
  • the resource selection device 120 includes a resource request sending module 121.
  • the resource request sending module 121 is configured to use the pre-configured sending resources to perform sidelink sending in response to the absence of a sending resource pool in the received system information.
  • the user equipment is a remote device in a relay side link, and the user equipment communicates with the base station through the relay device;
  • the resource request sending module 121 includes:
  • the first resource request sending module is configured to use the pre-configured sending resources for sidelink transmission in response to receiving system information sent by the relay device indicating that the sending resource pool does not exist.
  • the system information sent by the relay device is acquired from a base station to which the relay device is connected.
  • the resource request sending module 121 includes:
  • a connection module configured to enter a connection state when the sending resource pool does not exist in the system information
  • a second resource request sending module is configured to request a sending resource from the base station according to the preconfigured sending resource
  • the reconfiguration message receiving module is configured to receive a reconfiguration message returned by the base station, wherein the reconfiguration message carries a sending resource or a sending resource pool returned by the base station.
  • the resource selection device 120 includes:
  • the first stopping module is configured to stop using the preconfigured sending resources when receiving the sending resources or the sending resource pool returned by the base station.
  • the resource selection device 120 includes:
  • the user equipment When the user equipment satisfies any of the following conditions, it is determined that the user equipment is connected to the base station through the relay device:
  • the user equipment is not covered by the network
  • the reference signal received power between the user equipment and the base station is less than a threshold
  • the user equipment selects the relay equipment
  • the user equipment is configured with a direct link and an indirect link, and the indirect link is used as a main link.
  • the indirect link is a link for the user equipment to communicate with the base station through the relay device.
  • the resource selection device 120 includes:
  • the indirect link is used as the main link:
  • the indirect link is used to transmit a wireless signaling bearer
  • the indirect link is a main transmission path for transmitting the wireless signaling bearer
  • the indirect link is a path for maintaining the connection between the user equipment and the base station;
  • the indirect link is an anchor path
  • the indirect link is connected to the primary cell of the user equipment.
  • the resource request sending module 121 includes:
  • the third resource request sending module is configured to use the preconfigured sending resources for sidelink sending in response to the absence of a general sending resource pool and a special sending resource pool in the system information.
  • the resource selection device 120 includes:
  • a fourth resource request sending module configured to, if a general sending resource pool exists in the system information, perform sidelink sending according to the general sending resource pool;
  • the fifth resource request sending module is configured to perform sidelink transmission according to the special sending resource pool when the general sending resource pool does not exist in the system information and a special sending resource pool exists.
  • the transmission resource pool is a relay side link transmission resource pool, and the transmission resources are relay side link transmission resources.
  • Fig. 12 is a block diagram of a resource selection device according to an exemplary embodiment.
  • the resource selection device 220 includes a resource request receiving module 221 .
  • the resource request receiving module 221 is configured to perform sidelink reception to obtain a resource request of a user equipment, wherein the resource request is sent by the user equipment using pre-configured sending resources when there is no sending resource pool in the system information.
  • the user equipment is a remote device in a relay side link, and the user equipment communicates with the base station through the relay device;
  • the resource request is sent by the user equipment using the preconfigured sending resource when the sending resource pool does not exist in the system information received from the relay device.
  • the resource request is sent by the user equipment to the base station using the preconfigured sending resources when the sending resource pool does not exist in the system information of the base station of the relay device.
  • the resource request receiving module 221 includes:
  • a first resource request receiving module is configured to perform sidelink reception and obtain a resource request sent by the user equipment using a pre-configured sending resource after the user equipment enters a connected state;
  • the reconfiguration message sending module is configured to return a reconfiguration message to the user equipment, wherein the reconfiguration message carries the sending resources or the sending resource pool returned by the base station.
  • the resource selection device 220 includes:
  • the second stopping module is configured to return the sending resource or the sending resource pool to the user equipment, so that the user equipment stops using the preconfigured sending resource.
  • the resource selection device 220 includes:
  • the user equipment When the user equipment satisfies any of the following conditions, it is determined that the user equipment is connected to the base station through the relay device:
  • the user equipment is not covered by the network
  • the reference signal received power between the user equipment and the base station is less than a threshold
  • the user equipment selects the relay equipment
  • the user equipment is configured with a direct link and an indirect link, and the indirect link is used as a main link.
  • the indirect link is a link for the user equipment to communicate with the base station through the relay device.
  • the resource selection device 220 includes:
  • the indirect link is used as the main link:
  • the indirect link is used to transmit a wireless signaling bearer
  • the indirect link is a main transmission path for transmitting the wireless signaling bearer
  • the indirect link is a path for maintaining the connection between the user equipment and the base station;
  • the indirect link is an anchor path
  • the indirect link is connected to the primary cell of the user equipment.
  • the resource request receiving module 221 includes:
  • the second resource request receiving module is configured to perform sidelink reception to obtain the resource request of the user equipment when there is neither a general transmission resource pool nor a special transmission resource pool in the system information.
  • the resource request receiving module 221 includes:
  • a third resource request receiving module is configured to receive a resource request sent by the user equipment according to the general sending resource pool when there is a general sending resource pool in the system information;
  • the fourth resource request receiving module is configured to receive a resource request sent by the user equipment according to the special sending resource pool when the general sending resource pool does not exist in the system information and a special sending resource pool exists.
  • the sending resource pool is a relay side link sending resource pool, and the sending resources are relay side link sending resources.
  • the resource selection device 220 includes:
  • the system information sending module is configured to send the system information to the user equipment.
  • the present disclosure also provides a computer-readable storage medium having computer program instructions stored thereon, and the program instructions, when executed by a processor, implement the steps of the resource selection method provided by the present disclosure.
  • Fig. 13 is a block diagram of a user equipment device 800 according to an exemplary embodiment.
  • the device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the apparatus 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input/output interface 812 , a sensor component 814 , and a communication component 816 .
  • the processing component 802 generally controls the overall operation of the device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-described method.
  • the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components.
  • the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
  • the memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power supply component 806 provides power to the various components of the device 800.
  • the power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 800.
  • the multimedia component 808 includes a screen that provides an output interface between the device 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
  • the multimedia component 808 includes a front camera and/or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
  • the audio component 810 is configured to output and/or input audio signals.
  • the audio component 810 includes a microphone (MIC), and when the device 800 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal can be further stored in the memory 804 or sent via the communication component 816.
  • the audio component 810 also includes a speaker for outputting audio signals.
  • the input/output interface 812 provides an interface between the processing component 802 and the peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.
  • the sensor assembly 814 includes one or more sensors for providing various aspects of the status assessment of the device 800.
  • the sensor assembly 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800, and the sensor assembly 814 can also detect the position change of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and the temperature change of the device 800.
  • the sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact.
  • the sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 816 is configured to facilitate wired or wireless communication between the device 800 and other devices.
  • the device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • controllers microcontrollers, microprocessors or other electronic components to perform the above method.
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the device 800 to perform the above method.
  • the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
  • the above-mentioned device can also be a part of an independent electronic device.
  • the device can be an integrated circuit (IC) or a chip, wherein the integrated circuit can be one IC or a collection of multiple ICs; the chip can include but is not limited to the following types: GPU (Graphics Processing Unit), CPU (Central Processing Unit), FPGA (Field Programmable Gate Array), DSP (Digital Signal Processor), ASIC (Application Specific Integrated Circuit), SOC (System on Chip, SoC), etc.
  • the above-mentioned integrated circuit or chip can be used to execute executable instructions (or codes) to implement the above-mentioned resource selection method.
  • the executable instructions can be stored in the integrated circuit or chip, or can be obtained from other devices or equipment, for example, the integrated circuit or chip includes a processor, a memory, and an interface for communicating with other devices.
  • the executable instruction may be stored in the memory, and when the executable instruction is executed by the processor, the above-mentioned resource selection method is implemented; alternatively, the integrated circuit or chip may receive the executable instruction through the interface and transmit it to the processor for execution, so as to implement the above-mentioned resource selection method.
  • a computer program product is further provided.
  • the computer program product includes a computer program executable by a programmable device.
  • the computer program has a code portion for executing the above resource selection method when executed by the programmable device.
  • FIG14 is a block diagram of a base station 1900 according to an exemplary embodiment.
  • the apparatus 1900 may be provided as a base station.
  • the base station 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by a memory 1932 for storing instructions executable by the processing component 1922, such as an application.
  • the application stored in the memory 1932 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 1922 is configured to execute instructions to perform the above-mentioned resource selection method.
  • the device 1900 may also include a power component 1926 configured to perform power management of the device 1900 , a wired or wireless network interface 1950 configured to connect the device 1900 to a network, and an input/output interface 1958 .
  • the embodiment of the present disclosure also provides a communication system, which includes a remote UE, a remote UE's opposite UE and a relay UE, wherein the remote UE and the opposite UE are each other's remote UEs.
  • the remote UE and the relay UE can execute the above-mentioned resource selection method.

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Abstract

一种资源选择方法、装置、用户设备、基站、存储介质与芯片，涉及通信技术领域。应用于用户设备，所述方法包括：响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。使用本公开提出的资源选择方法，可以在系统信息不存在发送资源池的情况下，使用预配置的发送资源进行侧行链路发送，避免用户设备断开通信与业务。

Description

资源选择方法、装置、用户设备、基站、存储介质与芯片 技术领域
本公开涉及通信技术领域，尤其涉及一种资源选择方法、装置、用户设备、基站、存储介质与芯片。
背景技术
为了支持UE(user equipment，用户设备)与UE之间的直接通信，引入了sidelink(侧行链路)通信方式，UE与UE之间可以通过PC-5接口(直连通信接口)进行通信。当一个UE需要与基站进行通信，但处于基站网络的覆盖范围之外时，可以采用另外一个位于基站网络的覆盖范围之内的UE的中继实现与基站的通信。其中，与基站没有连接的UE称为远端UE(remote UE)，提供中继功能的UE称为中继UE(relay UE)，远端UE与中继UE之间可以通过sidelink进行单播、组播和广播通信。
在sidelink通信的过程中，远端UE可以使用系统信息中的发送资源池来进行侧行链路发送，然而系统信息中不存在发送资源池时，远端UE则没有可以使用的发送资源池来进行侧行链路发送，导致远端UE与中继UE之间的通信中断。
发明内容
为克服相关技术中存在的问题，本公开提供一种资源选择方法、装置、用户设备、基站、存储介质与芯片。
根据本公开实施例的第一方面，提供一种资源选择方法，应用于用户设备，所述方法包括：
响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。
根据本公开实施例的第二方面，提供一种资源选择方法，应用于基站，所述方法包括：
进行侧行链路接收以获得用户设备的资源请求，其中，所述资源请求是在系统信息中不存在发送资源池的情况下，所述用户设备使用预配置的发送资源发送的。
根据本公开实施例的第三方面，提供一种资源选择装置，应用于用户设备，包括：
资源请求发送模块，被配置为响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。
根据本公开实施例的第四方面，提供一种资源选择装置，应用于基站，包括：
资源请求接收模块，被配置为进行侧行链路接收以获得用户设备的资源请求，所述资源请求是在系统信息中不存在发送资源池的情况下，所述用户设备使用预配置的发送资源发送的。
根据本公开实施例的第五方面，提供一种用户设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为在执行所述可执行指令时，实现本公开实施例的第一方面提供的资源选择方法的步骤。
根据本公开实施例的第六方面，提供一种基站，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为在执行所述可执行指令时，实现本公开实施例的第二方面提供的资源选择方法的步骤。
根据本公开实施例的第七方面，提供一种计算机可读存储介质，其上存储有计算机程序指令，该程序指令被处理器执行时实现本公开第一方面所提供的资源选择方法的步骤，或实现本公开第二方面提供的资源选择方法的步骤。
根据本公开实施例的第八方面，提供一种芯片，包括处理器和接口；所述处理器用于读取指令以执行本公开第一方面所提供的资源选择方法的步骤，或执行本公开第二方面提供的资源选择方法的步骤。
本公开的实施例提供的技术方案可以包括以下有益效果：
在系统信息不存在发送资源池的情况下，远端UE可以使用预配置的发送资源，来继续进行 侧行链路发送，使得远端UE能够与中继UE或基站进行数据或信令的交互，避免远端UE的通信或业务中断。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种资源选择方法的流程图。
图2是根据一示例性实施例示出的一种资源选择方法的流程图。
图3是根据一示例性实施例示出的一种资源选择方法的流程图。
图4是根据一示例性实施例示出的一种资源选择方法的流程图。
图5是根据一示例性实施例示出的一种资源选择方法的流程图。
图6是根据一示例性实施例示出的一种资源选择方法的流程图。
图7是根据一示例性实施例示出的一种资源选择方法的流程图。
图8是根据一示例性实施例示出的一种资源选择方法的流程图。
图9是根据一示例性实施例示出的一种资源选择方法的流程图。
图10是根据一示例性实施例示出的一种资源选择方法的流程图。
图11是根据一示例性实施例示出的一种资源选择装置的框图。
图12是根据一示例性实施例示出的一种资源选择装置的框图。
图13是根据一示例性实施例示出的一种用户设备的框图。
图14是根据一示例性实施例示出的一种基站的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
需要说明的是，本申请中所有获取信号、信息或数据的动作都是在遵照所在地国家相应的数据保护法规政策的前提下，并获得由相应装置所有者给予授权的情况下进行的。
图1是根据一示例性实施例示出的一种资源选择方法的流程图，如图1所示，该资源选择方法可以应用于至用户设备中，该用户设备可以为上述的远端UE，该方法包括以下步骤。
在步骤S101中，响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。
示例地，为支持UE与UE之间的直接通信，本实施例中各个设备之间通过5G(第五代移动通信系统)、4G(第五代移动通信系统)通信技术建立数据通信，基于sidelink(侧行链路，SL)通信方式，UE与UE之间可以通过PC-5接口进行直接通信。根据UE与UE之间的对应关系，在sidelink上支持单播、组播和广播三种方式。发送UE在PSCCH(Physical Sidelink Control Channel，物理控制信道)上发送sidelink控制信息SCI(Sidelink Control Information，侧链控制信息)，以及在PSSCH(Physical Sidelink Shared Channel，物理共享信道)上发送第二阶段SCI，其中SCI携带传输数据的资源位置、源UE标识和目的UE标识等；接收UE在收到SCI后，根据其中的源UE标识和目的UE标识确定是否接收对应的数据以及对应哪个进程。在单播连接中，每个UE都对应一个目的标识，在组播中，每个UE可以属于一个或多个组，每个组与一个目的标识相对应，在广播中，所有UE都至少与一个目的标识相对应。
Sidelink通信有两种发送资源分配方式，一种是网络动态调度的方式，另一种是UE在基站广播的资源池中自主选择的方式。
其中，网络动态调度的方式是基站根据UE的缓存数据上报，动态给UE分配Sidelink上的发送资源，UE可以为被基站网络覆盖的中继UE。
而自主选择是UE自行地从系统信息中的发送资源池或者预配置的发送资源或RRC(Radio Resource Control，无线资源控制)重配消息中的发送资源中随机选择发送资源。对于系统信息 而言，基站可以将系统信息发送给远端UE。示例地，基站可以根据网络中是否具有资源池以及具有哪些资源池，来依据这些信息生成系统信息；基站再将这些系统信息进行广播，被基站网络覆盖的UE获取系统信息，这些UE可以作为中继UE将系统信息转发给远端UE，远端UE处于空闲态或非激活态时，可以使用基站广播的系统信息中的发送资源池来进行侧行链路发送；对于RRC重配消息而言，RRC重配消息是基站根据UE上报的资源请求后所生成的消息，该消息中携带有基站返回给UE的发送资源，UE进入连接态时，UE可以使用重配消息中的发送资源来进行侧行链路发送；预配置的发送资源是预先在远端UE配置的发送资源，UE处于脱网状态时，UE可以使用预配置的发送资源来进行侧行链路发送，脱网状态包括UE未被基站网络覆盖。
其中，系统信息的发送资源与RRC重配消息均是基站发出的，预配置的发送资源池是在UE事先配置的，系统信息可以是SIB12。
值得说明的是，RRC重配消息中的发送资源可以为发送资源池，UE可以从发送资源池中选择至少一个发送资源来进行侧行链路发送；预配置的发送资源可以为预配置的发送资源池，UE可以从预配置的发送资源池中选择至少一个发送资源来进行侧行链路发送。
值得说明的是，发送资源池可以为中继侧行链路发送资源池，发送资源可以为中继侧行链路发送资源，中继侧行链路包括远端UE、中继UE与基站，远端UE与基站之间通过中继UE进行交互。中继侧行链路发送资源为sidelink发送资源，中继侧行链路发送资源池为sidelink发送资源池。
sidelink发送资源为时间域和频率域的资源参数，各个基站可以通过时间域从sidelink发送资源池中调度对应时间周期的sidelink发送资源，通过频率域从sidelink发送资源池中确定对应的sidelink发送资源，来满足UE的资源请求。示例的，以4G通信技术为例，4G基站通过DCI(Downlink Control Information，下行控制信息)调度sidelink发送资源池中的sidelink发送资源，其中，设定DCI中携带的时间域为10点-11点，频率域为1880MHz-1900MHz，则UE根据该DCI确定在10点-11点周期内，频域段1880MHz-1900MHz的sidelink发送资源来作为UE发送资源请求的反馈。
网络动态调度方式的资源池和自主选择方式的资源池是分开的，网络动态调度由基站统一分配发送资源，因此可以通过合理的算法，避免不同UE进行碰撞。
基站可以在系统信息中携带发送资源池，UE使用系统信息中的发送资源池进行自主选择。系统信息中的发送资源池分为两种，一种为一般发送资源池(sl-TxPoolSelectedNormal)，另一种为特殊发送资源池(sl-TxPoolExceptional)。如果系统信息中携带一般发送资源池，UE使用一般发送资源池；如果系统信息中没有携带一般发送资源池，则UE使用特殊发送资源池，如果系统信息中没有携带任何发送资源池，则UE需要使用预配置的发送资源进行侧行链路发送。
值得说明的是，进行侧行链路发送可以为进行sidelink发送，远端UE进行侧行链路发送的过程中，可以携带发送给中继UE或基站的数据或指令，在侧行链路中进行传输。例如在进行侧行链路发送的过程中，可以携带远端UE发送给基站的资源请求，也可以携带基站发送给远端UE的RRC重配消息等。
值得说明的是，本公开任意实施例提出的用户设备可以是手机、平板、便携电脑、带无线收发功能的电脑、虚拟现实(虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等，本公开对应用场景不做限定，用户设备有时也可以称为终端设备、终端、接入终端、UE单元、UE站、移动设备、移动站、移动台(mobile station)、移动客户端等。
值得说明的是，预配置的发送资源可以由开发人员事先在UE中进行配置，预配置的发送资源为时间域和频率域的资源参数，可以预先在UE中配置发送资源的频域段、时间周期、可用时长与带宽等。
UE可以获取基站广播的系统信息，如此，位于基站网络覆盖范围内的中继UE，可以获取基站广播的系统信息。当远端UE处于脱网状态下，通过预配置的发送资源向中继UE发送系统信息请求后，中继UE可以将获取的基站的系统信息转发给远端UE；远端UE在确定系统信息中未携带有发送资源池的情况下，此时无法进行侧行链路发送，为了能够进行侧行链路发送，可以继续使用预配置的发送资源进行侧行链路发送。
通过上述方案，在系统信息不存在发送资源池的情况下，远端UE可以使用预配置的发送资源，来继续进行侧行链路发送，使得远端UE能够与中继UE或基站进行数据或信令的交互，避免远端UE的通信或业务中断。
图2是根据一示例性实施例示出的一种资源选择方法的流程图，如图2所示，该资源选择方法应用于用户设备中，该方法包括以下步骤。
在步骤S201中，响应于接收到由所述中继设备发送的系统信息不存在所述发送资源池，使用所述预配置的发送资源进行侧行链路发送。
示例地，本实施例应用于用户设备中，该用户设备可以是上述通过中继UE与基站交互的远端UE，远端UE与中继UE之间的通信信号可以采用sidelink单播发送；中继设备可以是中继UE，用于建立远端UE与基站之间的通信连接，中继设备被基站网络覆盖。
示例地，基站可以通过网络广播系统信息，被基站网络覆盖的中继UE可以接收到系统信息，所以远端UE可以响应于中继UE的基站的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。远端UE接收中继UE发送的系统信息，可以是中继UE从基站获取的。
值得说明的是，基站网络的覆盖区域为服务小区，中继UE可以从服务小区中获取基站广播的系统信息。服务小区是在通信系统中，基站或基站的一部分所覆盖的区域，在这个区域内的UE之间可以相互通过无线信道进行通信。
值得说明的是，一个UE可以不直接与基站连接而通过另外一个UE的中继实现与基站的通信，其中与基站没有连接的UE称为远端UE(remote UE)，提供中继功能的UE称为中继UE(relay UE)，远端UE与中继UE之间通过sidelink单播通信，这种架构称为U2N(UE to NW)中继。
远端UE通过中继UE接入网络的过程中，在获取到中继UE转发的系统信息之前，可以使用预配置的发送资源进行侧行链路发送，从而与中继UE交互信令与数据。
示例地，远端UE可以通过预配置的发送资源，向中继UE发送系统信息请求，系统信息请求中携带请求的系统信息标识；中继UE依据系统信息标识确定系统信息，向远端UE返回系统信息。其中，中继UE可以获取基站广播的系统信息。
应当理解，该方法还可以包括：接收系统消息，所述系统消息可以由基站广播。当远端UE被基站网络覆盖时，所述远端UE直接接收基站广播的系统消息；当远端UE未被基站网络覆盖时，也可以由基站发送给中继UE并由所述中继UE转发给所述远端UE，本公开对此不作限制。
通过上述技术方案，远端UE可以接收中继UE从基站获取的系统信息；在确定系统信息中不存在发送资源池的情况下，使用预配置的发送资源进行侧行链路发送，以保障远端UE与中继UE之间的通信连接，避免远端UE的通信和业务中断。
图3是根据一示例性实施例示出的一种资源选择方法的流程图，如图3所示，该资源选择方法应用于用户设备中，该方法包括以下步骤。
在步骤S301中，在所述系统信息中不存在所述发送资源池的情况下，进入连接态。
示例地，在远端UE接收到系统信息，并确定系统信息中不存在发送资源池的情况下，远端UE进入连接态。
其中，远端UE进入连接态表明远端UE需要与中继UE或基站进行数据或信令的交互，且远端UE处于脱网的状态。
在步骤S302中，根据所述预配置的发送资源向基站请求发送资源。
示例地，在远端UE进入连接态后，为了满足远端UE需要与中继UE或基站进行数据或信令的交互需求，远端UE可以采用远端UE中预先配置的发送资源向中继UE发送资源请求，中继UE将资源请求转发至基站。
其中，由于中继UE被基站网络覆盖，所以中继UE可以将远端UE发送的资源请求转发至基站；资源请求用于向基站请求发送资源，以使得远端UE可以使用基站分配的发送资源来与基站或中继UE进行通信。
在步骤S303中，接收所述基站返回的重配消息，所述重配消息中携带有所述基站返回的发送资源或发送资源池。
示例地，基站在接收到资源请求后，基站可以生成携带有发送资源或发送资源池的重配消息，来为远端UE返回发送资源或发送资源池。
其中，重配消息可以是RRC重配消息，是基站依据远端UE上报的资源请求生成的，用于为远端UE分配发送资源或发送资源池。
应当理解，该方法还可以包括：接收系统消息，所述系统消息可以由基站广播。当远端UE被基站网络覆盖时，所述远端UE直接接收基站广播的系统消息；当远端UE未被基站网络覆盖时，也可以由基站发送给中继UE并由所述中继UE转发给所述远端UE，本公开对此不作限制。
通过上述技术方案，远端UE可以接收中继UE从基站获取的系统信息；在确定系统信息中不存在发送资源池的情况下，使用预配置的发送资源进行侧行链路发送，以保障远端UE与中继UE之间的通信连接，避免远端UE的通信和业务中断。
图4是根据一示例性实施例示出的一种资源选择方法的流程图，如图4所示，该资源选择方法应用于用户设备中，该方法包括以下步骤。
在步骤S401中，响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。
示例的，本公开的实施例中的步骤S401可以参照上述步骤S201，不再赘述。
在步骤S402中，在接收到所述基站返回的发送资源或发送资源池的情况下，停止使用所述预配置的发送资源。
示例地，在远端UE接收到基站返回的发送资源或发送资源池的情况下，表明远端UE可以利用向基站请求的发送资源，来继续与基站或中继UE进行数据或信令的传输，此时可以不再使用预配置的发送资源与基站或中继UE进行数据或信令的传输。
其中，基站在接收到远端UE发送的资源请求后，可以将发送资源或发送资源池打包为重配信息返回至远端UE。
通过上述技术方案，在远端UE接收到基站返回的重配消息中携带的发送资源或发送资源池的情况下，表明远端UE向基站请求发送资源成功，此时远端UE可以使用基站分配的发送资源来进行侧行链路发送，而无需继续使用预配置的发送资源。
图5是根据一示例性实施例示出的一种资源选择方法的流程图，如图5所示，该资源选择方法应用于用户设备中，该方法包括以下步骤。
在步骤S501中，在所述用户设备满足以下任一条件的情况下，确定所述用户设备通过所述中继设备与所述基站连接：
所述用户设备未被网络覆盖；
所述用户设备与所述基站之间的参考信号接收功率小于阈值；
所述用户设备选择所述中继设备；
所述用户设备配置有直接链路和间接链路，将所述间接链路作为主链路，所述间接链路为所述用户设备通过所述中继设备与所述基站通信的链路。
其中，远端UE未被基站网络覆盖时，表明远端UE需要通过中继UE来与基站连接，进而与基站进行交互，所以当远端UE未被基站网络覆盖时，远端UE是通过中继UE来与基站建立连接的。
其中，远端UE与基站之间的RSRP(Reference Signal Receiving Power，参考信号接收功率)小于阈值时，说明远端UE接收到的网络信号较差，无法接入基站的网络，此时远端UE也是通过中继UE来与基站建立连接。
其中，远端UE可以直接与基站连接，远端UE也可以通过中继UE来与基站连接，当远端UE从多个中继UE中选择一个中继UE来与基站通信时，说明远端UE是通过中继UE来与基站连接。
示例地，在远端UE未被网络覆盖，或远端UE与基站之间的RSRP小于阈值时，确定远端UE可能会选择中继UE。
其中，远端UE与基站之间也存在一条SRB(Signaling Radio Bearer，无线信令承载)主链路与多条SRB非主链路，当间接链路作为SRB主链路时，表明远端UE、中继UE与基站之间的间接链路是发送数据或信令的主要链路，此时可以确定远端UE通过中继UE与基站连接，来传输数据或信令。
远端UE配置有至少一条直接链路与间接链路，来与基站通信，直接链路是远端UE直接与基站连接的链路，间接链路是远端UE通过中继UE与基站通信的链路。间接链路可以通过以下任一条件确定为主链路，直接链路也可以通过以下任一条件确定为主链路。
示例地，在间接链路通过以下任一条件确定为主链路包括：
所述间接链路用于传输无线信令承载，无线信令承载可以为SRB；
所述间接链路是传输所述无线信令承载的主传输路径；
所述间接链路连接失败的情况下，触发了所述基站的重配信息；
所述间接链路是用于保持所述用户设备与所述基站连接的路径；
所述间接链路为锚点路径；
所述间接链路连接的是所述用户设备的主小区。
其中，间接链路用于传输SRB包括间接链路是用于传输SRB的主传输路径与间接链路是用于传输SRB的非主传输路径；当间接链路是用于传输SRB时，可以确定间接链路可以用于接入网络，此时可以确定间接链路是主链路。
其中，间接链路是用于传输SRB的主传输路径时，也可以确定间接链路用于接入网络，确定间接链路是主链路。
其中，重配消息是远端UE未被网络覆盖的情况下，基站通过中继UE返回给远端UE的。远端UE在接收重配消息后，会依据重配消息中的发送资源或发送资源池来与基站建立连接，该间接链路可以实现主要的信令或数据转发，所以可以作为主链路。
其中，在间接链路是用来保持远端UE与基站连接的路径时，说明该间接链路可以实现远端UE与基站之间信令或数据转发，而其余链路可能无法保持远端UE与基站的连接，进而无法实现信令或数据转发，所以可以将该间接链路作为主链路。
其中，在间接链路为锚点路径时，由于锚点路径是主路径的另外一种名称，所以间接路径为主路径。
其中，在双连接(dual-connectivity，DC)中，与核心网有控制信令交互的接入网设备可以称为主节点(master node，MN)，其他接入网设备可以称为辅节点(secondary node，SN)。主节点为UE提供的服务小区组可以称为主小区组(master cell group，MCG)，从节点为终端设备提供的服务小区组可以称为辅小区组(secondary cell group，SCG)，主小区起到核心控制作用，辅小区用于辅助主小区实现数据传输。在间接链路连接的是远端UE的主小区时，说明间接链路是主要控制链路，所以间接链路可以作为主链路。
通过上述技术方案，可以确定UE是通过中继UE接入基站网络的远端UE，并在确定远端UE之后，远端UE确认接收到的系统信息是否存在发送资源池，如果不存在发送资源池，采用预配置的发送资源进行侧行链路发送，避免远端UE的通信和业务中断。
图6是根据一示例性实施例示出的一种资源选择方法的流程图，如图6所示，该资源选择方法应用于用户设备中，该方法包括以下步骤。
在步骤S601中，响应于所述系统信息中不存在一般发送资源池，也不存在特殊发送资源池，使用所述预配置的发送资源进行侧行链路发送。
示例地，基站可以根据网络中是否具有资源池以及具有哪些资源池生成系统信息，系统信息中可以同时存在一般发送资源池与特殊发送资源池，也可以存在其中一者，也可以不存在发送资源池，远端UE确定接收到的系统信息中不存在一般发送资源池，也不存在特殊发送资源池的情况下，确定系统信息中不存在发送资源池，为了保障远端UE能够进行侧行链路发送，可以使用远端UE预配置的发送资源进行侧行链路发送。
在步骤S602中，在所述系统信息中存在一般发送资源池的情况下，根据所述一般发送资源池进行侧行链路发送。
示例地，在系统信息中存在一般发送资源池与特殊发送资源，或存在一般发送资源池的情况下，优先采用一般发送资源池，与中继UE或基站进行数据或信令的交互。
远端UE可以从一般发送资源池中选择至少一种发送资源，来进行侧行链路发送。
在步骤S603中，在所述系统信息中不存在所述一般发送资源池，且存在特殊发送资源池的情况下，根据所述特殊发送资源池进行侧行链路发送。
示例地，在系统信息中不存在一般发送资源池，且存在特殊发送资源池的情况下，采用特殊发送资源池，与中继UE或基站进行数据或信令的交互。
远端UE可以从特殊发送资源池中选择至少一种发送资源，来进行侧行链路发送。
通过上述技术方案，可以在接收到的系统信息中不存在发送资源池，远端UE可能会断开通信的情况下，采用预配置的发送资源来进行侧行链路发送，以保障远端UE的正常通信。
图7是根据一示例性实施例示出的一种资源选择方法的流程图，如图7所示，该资源选择方法应用于基站中，该方法包括以下步骤。
在步骤S701中，进行侧行链路接收以获得用户设备的资源请求，其中，所述资源请求是在系统信息中不存在发送资源池的情况下，所述用户设备使用预配置的发送资源发送的。
示例地，基站可以是用于进行公共移动通信的基站，例如可以是上述服务小区的基站，在5G中该基站可以是gNodeB。
进行侧行链路接收可以为进行sidelink接收，基站进行侧行链路接收的过程中，可以携带基站与中继UE或远端UE交互的数据或指令，在侧行链路中进行传输。例如在进行侧行链路接收的过程中，可以携带远端UE发送给基站的资源请求，也可以携带基站发送给远端UE的RRC重配消息等。
值得说明的是，发送资源池可以为中继侧行链路发送资源池，发送资源可以为中继侧行链路发送资源，中继侧行链路包括远端UE、中继UE与基站，远端UE与基站之间通过中继UE进行交互。中继侧行链路发送资源为sidelink发送资源，中继侧行链路发送资源池为sidelink发送资源池，这两种发送资源用于UE与UE之间进行通信。
其中，所述资源请求是所述用户设备在从所述中继设备接收到的系统信息不存在所述发送资源池的情况下，使用所述预配置的发送资源发送的。
示例地，所述资源请求是所述用户设备在所述中继设备的基站的系统信息中不存在所述发送资源池的情况下，使用所述预配置的发送资源向所述基站发送的。
基站可以向远端UE发送系统资源，基站通过广播的方式将系统资源广播在服务小区中，位于服务小区内的中继UE将系统资源发送给远端UE，实现远端UE从中继设备的基站进行的系统信息的接收。
通过上述方案，在系统信息不存在发送资源池的情况下，进行侧行链路接收，得到用户设备使用预配置的发送资源发送的资源请求，使得远端UE能够与中继UE或基站进行数据或信令的交互，避免远端UE的通信与业务中断。
图8是根据一示例性实施例示出的一种资源选择方法的流程图，如图8所示，该资源选择方法应用于基站中，该方法包括以下步骤。
在步骤S801中，进行侧行链路接收，得到所述用户设备进入连接态后，使用预配置的发送资源发送的资源请求。
示例地，在远端UE接收到系统信息，并确定系统信息中不存在发送资源池的情况下，远端UE进入连接态。
其中，远端UE进入连接态表明远端UE需要与中继UE或基站进行数据或信令的交互，且远端UE处于未被网络覆盖的状态。
当基站接收到资源请求之后，可以确定远端UE处于脱网状态，远端UE的通信或业务可能会存在中断的情况。
在步骤S802中，向所述用户设备返回重配消息，所述重配消息中携带有所述基站返回的发送资源或发送资源池。
其中，基站在接收到资源请求后，可以生成重配消息，来为远端UE分配发送资源。重配消息可以是RRC重配消息，是基站响应于远端UE上报的资源请求所生成的。
示例地，通信有两种发送资源分配方式，一种是基站进行网络动态调度的方式，另一种是UE在重配消息的资源池或预配置的资源池或系统信息的资源池中自主选择的方式。
在动态调度方式下，UE向基站发送资源请求，基站确定选择动态调度方式，在选择动态调度方式后，基站将动态调度指示反馈给UE，动态调度指示中携带有UE需要上报的信息；UE依据动态调度指示，将自身的缓存数据发送给基站；基站依据缓存数据动态调度发送资源，并将发送资源返回给UE，UE依据发送资源实现通信。其中，可以为被基站网络覆盖的中继UE。
在自主选择方式下，若远端UE侧存在系统信息的发送资源池，远端UE则选择系统信息的资源池中的发送资源，来与中继UE或基站进行交互；若远端UE接收到的系统信息中未携带有发送资源池，远端UE则可以选择预配置的发送资源池中的发送资源，来与中继UE进行交互，将资源请求通过中继UE发送给基站；基站再根据远端UE上报的资源请求生成重配消息，将重配消息通过中继UE下发至远端UE，重配消息中可以携带有基站发送给远端UE的发送资源或发送资源池。
值得说明的是，发送资源或发送资源池可以为传输数据的资源，使用发送资源或发送资源池可以实现远端UE与其余设备之间的数据交互。
通过上述技术方案，在系统信息不存在发送资源池的情况下，进行侧行链路接收，得到用户设备使用预配置的发送资源发送的资源请求，使得远端UE能够与中继UE或基站进行数据或信令的交互，避免远端UE的通信与业务中断。
图9是根据一示例性实施例示出的一种资源选择方法的流程图，如图9所示，该资源选择方法应用于基站中，该方法包括以下步骤。
在步骤S901中，进行侧行链路接收以获得用户设备的资源请求，其中，所述资源请求是在系统信息中不存在发送资源池的情况下，所述用户设备使用预配置的发送资源发送的。
示例的，本公开的实施例中进行侧行链路接收的方法可以参照上述步骤S801，不再赘述。
在步骤S902中，向所述用户设备返回所述发送资源或所述发送资源池，用于所述用户设备停止使用所述预配置的发送资源。
示例的，本公开的实施例中停止使用预配置的发送资源可以参照上述步骤S402，不再赘述。
通过上述技术方案，在基站向远端UE返回重配消息后，表明远端UE向基站请求发送资源成功，此时远端UE可以使用基站分配的发送资源来与中继UE或基站传输信令或数据，而无需继续使用预配置的发送资源。
根据一示例性实施例示出的一种资源选择方法，该资源选择方法应用于基站中，该方法包括以下步骤。
在步骤S110中，在所述用户设备满足以下任一条件的情况下，确定所述用户设备通过所述中继设备与所述基站连接：
所述用户设备未被网络覆盖；
所述用户设备与所述基站之间的参考信号接收功率小于阈值；
所述用户设备选择所述中继设备；
所述用户设备配置有直接链路和间接链路，将所述间接链路作为主链路，所述间接链路为所述用户设备通过所述中继设备与所述基站通信的链路。
其中，在满足以下任一条件的情况下，所述间接链路作为所述主链路：
所述间接链路用于传输无线信令承载；
所述间接链路是传输所述无线信令承载的主传输路径；
所述间接链路连接失败的情况下，触发了所述基站的重配信息；
所述间接链路是用于保持所述用户设备与所述基站连接的路径；
所述间接链路为锚点路径；
所述间接链路连接的是所述用户设备的主小区。
示例的，本公开的实施例中用户设备通过中继设备与基站进行通信的确定条件可以参照上述步骤S501，不再赘述。
通过上述技术方案，可以确定UE是通过中继UE接入基站网络的远端UE，并在确定远端UE之后，远端UE确认接收到的系统信息是否存在发送资源池，如果不存在发送资源池，采用预配置的发送资源进行侧行链路发送，避免远端UE的通信和业务中断。
图10是根据一示例性实施例示出的一种资源选择方法的流程图，如图10所示，该资源选择方法应用于基站中，该方法包括以下步骤。
在步骤S220中，在所述系统信息中不存在一般发送资源池，也不存在特殊发送资源池的情况下，进行侧行链路接收，得到所述用户设备的资源请求。
示例的，本公开的实施例中确定用户设备的资源请求可以参照上述步骤S601，不再赘述。
在步骤S221中，在所述系统信息中存在一般发送资源池的情况下，接收所述用户设备根据所述一般发送资源池发送的资源请求。
示例的，本公开的实施例中的一般发送资源池可以参照上述步骤S602，不再赘述。
在步骤S222中，在所述系统信息中不存在所述一般发送资源池，且存在特殊发送资源池的情况下，接收所述用户设备根据所述特殊发送资源池发送的资源请求。
示例的，本公开的实施例中的特殊发送资源池可以参照上述步骤S603，不再赘述。
通过上述技术方案，可以在接收到的系统信息中不存在发送资源池，远端UE可能会断开通信的情况下，接收远端UE采用预配置的发送资源发送的资源请求，以保障远端UE的正常通信。
图11是根据一示例性实施例示出的一种资源选择装置的框图。参照图11，该资源选择装置 120包括资源请求发送模块121。
资源请求发送模块121，被配置为响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。
可选地，所述用户设备是中继侧行链路中的远端设备，所述用户设备通过中继设备与所述基站通信；资源请求发送模块121包括：
第一资源请求发送模块，被配置为响应于接收到由所述中继设备发送的系统信息不存在所述发送资源池，使用所述预配置的发送资源进行侧行链路发送。
可选地，所述中继设备发送的系统信息从所述中继设备所连接的基站获取。
可选地，资源请求发送模块121包括：
连接模块，被配置为在所述系统信息中不存在所述发送资源池的情况下，进入连接态；
第二资源请求发送模块，被配置为根据所述预配置的发送资源向基站请求发送资源；
重配消息接收模块，被配置为接收所述基站返回的重配消息，所述重配消息中携带有所述基站返回的发送资源或发送资源池。
可选地，资源选择装置120包括：
第一停止模块，被配置为在接收到所述基站返回的发送资源或发送资源池的情况下，停止使用所述预配置的发送资源。
可选地，资源选择装置120包括：
在所述用户设备满足以下任一条件的情况下，确定所述用户设备通过所述中继设备与所述基站连接：
所述用户设备未被网络覆盖；
所述用户设备与所述基站之间的参考信号接收功率小于阈值；
所述用户设备选择所述中继设备；
所述用户设备配置有直接链路和间接链路，将所述间接链路作为主链路，所述间接链路为所述用户设备通过所述中继设备与所述基站通信的链路。
可选地，资源选择装置120包括：
在满足以下任一条件的情况下，将所述间接链路作为所述主链路：
所述间接链路用于传输无线信令承载；
所述间接链路是传输所述无线信令承载的主传输路径；
所述间接链路连接失败的情况下，触发了所述基站的重配信息；
所述间接链路是用于保持所述用户设备与所述基站连接的路径；
所述间接链路为锚点路径；
所述间接链路连接的是所述用户设备的主小区。
可选地，资源请求发送模块121包括：
第三资源请求发送模块，被配置为响应于所述系统信息中不存在一般发送资源池，也不存在特殊发送资源池，使用所述预配置的发送资源进行侧行链路发送。
可选地，资源选择装置120包括：
第四资源请求发送模块，被配置为在所述系统信息中存在一般发送资源池的情况下，根据所述一般发送资源池进行侧行链路发送；
第五资源请求发送模块，被配置为在所述系统信息中不存在所述一般发送资源池，且存在特殊发送资源池的情况下，根据所述特殊发送资源池进行侧行链路发送。
可选地，所述发送资源池为中继侧行链路发送资源池，所述发送资源为中继侧行链路发送资源。
图12是根据一示例性实施例示出的一种资源选择装置的框图。参照图12，该资源选择装置220包括资源请求接收模块221。
资源请求接收模块221，被配置为进行侧行链路接收以获得用户设备的资源请求，其中，所述资源请求是在系统信息中不存在发送资源池的情况下，所述用户设备使用预配置的发送资源发送的。
可选地，所述用户设备是中继侧行链路中的远端设备，所述用户设备通过中继设备与所述基站通信；
并且其中，所述资源请求是所述用户设备在从所述中继设备接收到的系统信息中不存在所 述发送资源池的情况下，使用所述预配置的发送资源发送的。
可选地，所述资源请求是所述用户设备在所述中继设备的基站的系统信息中不存在所述发送资源池的情况下，使用所述预配置的发送资源向所述基站发送的。
可选地，资源请求接收模块221包括：
第一资源请求接收模块，被配置为进行侧行链路接收，得到所述用户设备进入连接态后，使用预配置的发送资源发送的资源请求；
重配消息发送模块，被配置为向所述用户设备返回重配消息，所述重配消息中携带有所述基站返回的发送资源或发送资源池。
可选地，资源选择装置220包括：
第二停止模块，被配置为向所述用户设备返回所述发送资源或所述发送资源池，用于所述用户设备停止使用所述预配置的发送资源。
可选地，资源选择装置220包括：
在所述用户设备满足以下任一条件的情况下，确定所述用户设备通过所述中继设备与所述基站连接：
所述用户设备未被网络覆盖；
所述用户设备与所述基站之间的参考信号接收功率小于阈值；
所述用户设备选择所述中继设备；
所述用户设备配置有直接链路和间接链路，将所述间接链路作为主链路，所述间接链路为所述用户设备通过所述中继设备与所述基站通信的链路。
可选地，资源选择装置220包括：
在满足以下任一条件的情况下，将所述间接链路作为所述主链路：
所述间接链路用于传输无线信令承载；
所述间接链路是传输所述无线信令承载的主传输路径；
所述间接链路连接失败的情况下，触发了所述基站的重配信息；
所述间接链路是用于保持所述用户设备与所述基站连接的路径；
所述间接链路为锚点路径；
所述间接链路连接的是所述用户设备的主小区。
可选地，资源请求接收模块221包括：
第二资源请求接收模块，被配置为在所述系统信息中不存在一般发送资源池，也不存在特殊发送资源池的情况下，进行侧行链路接收以获得所述用户设备的资源请求。
可选地，资源请求接收模块221包括：
第三资源请求接收模块，被配置为在所述系统信息中存在一般发送资源池的情况下，接收所述用户设备根据所述一般发送资源池发送的资源请求；
第四资源请求接收模块，被配置为在所述系统信息中不存在所述一般发送资源池，且存在特殊发送资源池的情况下，接收所述用户设备根据所述特殊发送资源池发送的资源请求。
可选地，所述发送资源池为中继侧行链路发送资源池，发送资源为中继侧行链路发送资源。
可选地，资源选择装置220包括：
系统信息发送模块，被配置为将系统信息发送至所述用户设备。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本公开还提供一种计算机可读存储介质，其上存储有计算机程序指令，该程序指令被处理器执行时实现本公开提供的资源选择方法的步骤。
图13是根据一示例性实施例示出的一种用户设备的装置800的框图。例如，装置800可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图13，装置800可以包括以下一个或多个组件：处理组件802，存储器804，电源组件806，多媒体组件808，音频组件810，输入/输出接口812，传感器组件814，以及通信组件816。
处理组件802通常控制装置800的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件802可以包括一个或多个处理器820来执行指令，以完 成上述的方法的全部或部分步骤。此外，处理组件802可以包括一个或多个模块，便于处理组件802和其他组件之间的交互。例如，处理组件802可以包括多媒体模块，以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在装置800的操作。这些数据的示例包括用于在装置800上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件806为装置800的各种组件提供电力。电源组件806可以包括电源管理系统，一个或多个电源，及其他与为装置800生成、管理和分配电力相关联的组件。
多媒体组件808包括在所述装置800和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件808包括一个前置摄像头和/或后置摄像头。当装置800处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件810被配置为输出和/或输入音频信号。例如，音频组件810包括一个麦克风(MIC)，当装置800处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中，音频组件810还包括一个扬声器，用于输出音频信号。
输入/输出接口812为处理组件802和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器，用于为装置800提供各个方面的状态评估。例如，传感器组件814可以检测到装置800的打开/关闭状态，组件的相对定位，例如所述组件为装置800的显示器和小键盘，传感器组件814还可以检测装置800或装置800一个组件的位置改变，用户与装置800接触的存在或不存在，装置800方位或加速/减速和装置800的温度变化。传感器组件814可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件814还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件816被配置为便于装置800和其他设备之间有线或无线方式的通信。装置800可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件816还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置800可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器804，上述指令可由装置800的处理器820执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
上述装置除了可以是独立的电子设备外，也可是独立电子设备的一部分，例如在一种实施例中，该装置可以是集成电路(Integrated Circuit，IC)或芯片，其中该集成电路可以是一个IC，也可以是多个IC的集合；该芯片可以包括但不限于以下种类：GPU(Graphics Processing Unit， 图形处理器)、CPU(Central Processing Unit，中央处理器)、FPGA(Field Programmable Gate Array，可编程逻辑阵列)、DSP(Digital Signal Processor，数字信号处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、SOC(System on Chip，SoC，片上系统或系统级芯片)等。上述的集成电路或芯片中可以用于执行可执行指令(或代码)，以实现上述的资源选择方法。其中该可执行指令可以存储在该集成电路或芯片中，也可以从其他的装置或设备获取，例如该集成电路或芯片中包括处理器、存储器，以及用于与其他的装置通信的接口。该可执行指令可以存储于该存储器中，当该可执行指令被处理器执行时实现上述的资源选择方法；或者，该集成电路或芯片可以通过该接口接收可执行指令并传输给该处理器执行，以实现上述的资源选择方法。
在另一示例性实施例中，还提供一种计算机程序产品，该计算机程序产品包含能够由可编程的装置执行的计算机程序，该计算机程序具有当由该可编程的装置执行时用于执行上述的资源选择方法的代码部分。
图14是根据一示例性实施例示出的一种基站1900的框图。例如，装置1900可以被提供为一基站。参照图14，基站1900包括处理组件1922，其进一步包括一个或多个处理器，以及由存储器1932所代表的存储器资源，用于存储可由处理组件1922的执行的指令，例如应用程序。存储器1932中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件1922被配置为执行指令，以执行上述资源选择方法。
装置1900还可以包括一个电源组件1926被配置为执行装置1900的电源管理，一个有线或无线网络接口1950被配置为将装置1900连接到网络，和一个输入/输出接口1958。
本公开实施例还提供一种通信系统，该通信系统包括远端UE、远端UE的对端UE和中继UE，其中，该远端UE和对端UE互为对方的远端UE。该远端UE和中继UE可以执行上述的资源选择方法。
本领域技术人员在考虑说明书及实践本公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (27)

  1. 一种资源选择方法，其中，应用于用户设备，所述方法包括：
    响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。
  2. 根据权利要求1所述的资源选择方法，其中，所述用户设备是中继侧行链路中的远端设备，所述用户设备通过中继设备与所述基站通信；所述响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送，包括：
    响应于接收到由所述中继设备发送的系统信息不存在所述发送资源池，使用所述预配置的发送资源进行侧行链路发送。
  3. 根据权利要求2所述的资源选择方法，其中，所述中继设备发送的系统信息从所述中继设备所连接的基站获取。
  4. 根据权利要求1所述的资源选择方法，其中，响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送，包括：
    在所述系统信息中不存在所述发送资源池的情况下，进入连接态；
    根据所述预配置的发送资源向基站请求发送资源；
    接收所述基站返回的重配消息，所述重配消息中携带有所述基站返回的发送资源或发送资源池。
  5. 根据权利要求1所述的资源选择方法，其中，所述方法还包括：
    在接收到所述基站返回的发送资源或发送资源池的情况下，停止使用所述预配置的发送资源。
  6. 根据权利要求2所述的资源选择方法，其中，所述方法还包括：
    在所述用户设备满足以下任一条件的情况下，确定所述用户设备通过所述中继设备与所述基站连接：
    所述用户设备未被网络覆盖；
    所述用户设备与所述基站之间的参考信号接收功率小于阈值；
    所述用户设备选择所述中继设备；
    所述用户设备配置有直接链路和间接链路，将所述间接链路作为主链路，所述间接链路为所述用户设备通过所述中继设备与所述基站通信的链路。
  7. 根据权利要求6所述的资源选择方法，其中，在满足以下任一条件的情况下，将所述间接链路作为所述主链路：
    所述间接链路用于传输无线信令承载；
    所述间接链路是传输所述无线信令承载的主传输路径；
    所述间接链路连接失败的情况下，触发了所述基站的重配信息；
    所述间接链路是用于保持所述用户设备与所述基站连接的路径；
    所述间接链路为锚点路径；
    所述间接链路连接的是所述用户设备的主小区。
  8. 根据权利要求1所述的资源选择方法，其中，响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送，包括：
    响应于所述系统信息中不存在一般发送资源池，也不存在特殊发送资源池，使用所述预配置的发送资源进行侧行链路发送。
  9. 根据权利要求1所述的资源选择方法，其中，所述方法还包括：
    在所述系统信息中存在一般发送资源池的情况下，根据所述一般发送资源池进行侧行链路发送；
    在所述系统信息中不存在所述一般发送资源池，且存在特殊发送资源池的情况下，根据所述特殊发送资源池进行侧行链路发送。
  10. 根据权利要求1～9任一项所述的资源选择方法，其中，所述发送资源池为中继侧行链路发送资源池，所述发送资源为中继侧行链路发送资源。
  11. 一种资源选择方法，其中，应用于基站，所述方法包括：
    进行侧行链路接收以获得用户设备的资源请求，其中，所述资源请求是在系统信息中不存 在发送资源池的情况下，所述用户设备使用预配置的发送资源发送的。
  12. 根据权利要求11所述的资源选择方法，其中，所述用户设备是中继侧行链路中的远端设备，所述用户设备通过中继设备与所述基站通信；
    并且其中，所述资源请求是所述用户设备在从所述中继设备接收到的系统信息中不存在所述发送资源池的情况下，使用所述预配置的发送资源发送的。
  13. 根据权利要求12所述的资源选择方法，其中，所述资源请求是所述用户设备在所述中继设备的基站的系统信息中不存在所述发送资源池的情况下，使用所述预配置的发送资源向所述基站发送的。
  14. 根据权利要求11所述的资源选择方法，其中，所述进行侧行链路接收以获得用户设备的资源请求，包括：
    进行侧行链路接收，得到所述用户设备进入连接态后，使用预配置的发送资源发送的资源请求；
    向所述用户设备返回重配消息，所述重配消息中携带有所述基站返回的发送资源或发送资源池。
  15. 根据权利要求11所述的资源选择方法，其中，所述方法还包括：
    向所述用户设备返回所述发送资源或所述发送资源池，用于所述用户设备停止使用所述预配置的发送资源。
  16. 根据权利要求12所述的资源选择方法，其中，在所述用户设备满足以下任一条件的情况下，确定所述用户设备通过所述中继设备与所述基站连接：
    所述用户设备未被网络覆盖；
    所述用户设备与所述基站之间的参考信号接收功率小于阈值；
    所述用户设备选择所述中继设备；
    所述用户设备配置有直接链路和间接链路，将所述间接链路作为主链路，所述间接链路为所述用户设备通过所述中继设备与所述基站通信的链路。
  17. 根据权利要求13所述的资源选择方法，其中，在满足以下任一条件的情况下，将所述间接链路作为所述主链路：
    所述间接链路用于传输无线信令承载；
    所述间接链路是传输所述无线信令承载的主传输路径；
    所述间接链路连接失败的情况下，触发了所述基站的重配信息；
    所述间接链路是用于保持所述用户设备与所述基站连接的路径；
    所述间接链路为锚点路径；
    所述间接链路连接的是所述用户设备的主小区。
  18. 根据权利要求11所述的资源选择方法，其中，所述进行侧行链路接收以获得用户设备的资源请求，包括：
    在所述系统信息中不存在一般发送资源池，也不存在特殊发送资源池的情况下，进行侧行链路接收以获得所述用户设备的资源请求。
  19. 根据权利要求11所述的资源选择方法，其中，所述方法还包括：
    在所述系统信息中存在一般发送资源池的情况下，接收所述用户设备根据所述一般发送资源池发送的资源请求；
    在所述系统信息中不存在所述一般发送资源池，且存在特殊发送资源池的情况下，接收所述用户设备根据所述特殊发送资源池发送的资源请求。
  20. 根据权利要求11～19任一项所述的资源选择方法，其中，所述发送资源池为中继侧行链路发送资源池，发送资源为中继侧行链路发送资源。
  21. 根据权利要求11所述的资源选择方法，其中，所述方法还包括：
    将系统信息发送至所述用户设备。
  22. 一种资源选择装置，其中，应用于用户设备，包括：
    资源请求发送模块，被配置为响应于接收到的系统信息中不存在发送资源池，使用预配置的发送资源进行侧行链路发送。
  23. 一种资源选择装置，其中，应用于基站，包括：
    资源请求接收模块，被配置为进行侧行链路接收以获得用户设备的资源请求，所述资源请 求是在系统信息中不存在发送资源池的情况下，所述用户设备使用预配置的发送资源发送的。
  24. 一种用户设备，其中，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为在执行所述可执行指令时，实现权利要求1～10中任一项所述方法的步骤。
  25. 一种基站，其中，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为在执行所述可执行指令时，实现权利要求11～21中任一项所述方法的步骤。
  26. 一种计算机可读存储介质，其上存储有计算机程序指令，其中，该程序指令被处理器执行时实现权利要求1～10中任一项所述方法的步骤，或实现权利要求11～21中任一项所述方法的步骤。
  27. 一种芯片，其中，包括处理器和接口；所述处理器用于读取指令以执行权利要求1～10中任一项所述方法的步骤，或执行权利要求11～21中任一项所述方法的步骤。
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