WO2019153901A1 - 资源选择方法及用户终端 - Google Patents

资源选择方法及用户终端 Download PDF

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Publication number
WO2019153901A1
WO2019153901A1 PCT/CN2018/122010 CN2018122010W WO2019153901A1 WO 2019153901 A1 WO2019153901 A1 WO 2019153901A1 CN 2018122010 W CN2018122010 W CN 2018122010W WO 2019153901 A1 WO2019153901 A1 WO 2019153901A1
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Prior art keywords
service
resource
user terminal
baseband parameter
parameter
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PCT/CN2018/122010
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English (en)
French (fr)
Inventor
李晨鑫
赵锐
彭莹
林琳
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电信科学技术研究院有限公司
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Publication of WO2019153901A1 publication Critical patent/WO2019153901A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0294Traffic management, e.g. flow control or congestion control forcing collision
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a resource selection method and a user terminal.
  • the embodiments of the present disclosure provide a resource selection method and a user terminal to solve the problem of resource selection for collaborative information interaction service transmission in the NR system.
  • the embodiment of the present disclosure provides a resource selection method, which is applied to a user terminal, and includes:
  • the baseband parameter numerology is selected according to a preset rule;
  • the first service is a collaborative information interaction service;
  • the baseband parameter includes a first baseband parameter of a control signaling SA (Scheduling Assignment) and a second baseband parameter of data data.
  • SA Stuling Assignment
  • the preset rule includes any one of the following:
  • the second baseband parameter selecting, according to the correspondence between the condition parameter and the target object, the second baseband parameter, where the first baseband parameter is configured by a network side device or a fixed parameter value agreed by the protocol;
  • the baseband parameter of the received SA is used as the first baseband parameter, and the received data is Baseband parameters as the second baseband parameter;
  • the target object is a network-side device configuration or a protocol-defined optional baseband parameter configuration, where the baseband parameter configuration includes a time domain resource granularity configuration and a frequency domain resource sub-carrier spacing configuration, where the condition parameter includes a service delay requirement. At least one of a data transmission rate requirement, a reliability requirement, a QoS (Quality of Service), and a moving speed of the user terminal.
  • the baseband parameter configuration includes a time domain resource granularity configuration and a frequency domain resource sub-carrier spacing configuration
  • the condition parameter includes a service delay requirement.
  • the selecting the target time-frequency resource for sending the first service on the carrier and/or part of the bandwidth includes:
  • N is a positive integer
  • N is determined according to a preset ratio of the first candidate time-frequency resource.
  • performing the exclusion of the occupied resources on the first candidate time-frequency resource, and obtaining the second candidate time-frequency resource includes:
  • the second occupied resource is excluded from the first candidate time-frequency resource, and the second candidate time-frequency resource is obtained, where the second occupied resource is an unavailable resource specified by LTE-V2X;
  • the first sub-time-frequency resource includes all resources on the time domain resource where the first transmission resource is located, and the first transmission resource is another SA or data indicating that the first service of the same system has been received by the user terminal.
  • the second sub-time-frequency resource includes all resources on the time domain resource where the second transmission resource is located, and the second transmission resource sends the second service occupation and the user terminal / or reserved resources, the second service is other services than the first service.
  • the measurement of the reference signal received power PSSCH (Physical Sidelink Shared Channel)-RSRP (Reference Signal Receiving Power) of the physical through link shared channel is not performed on the first occupied resource.
  • the method further includes:
  • the target time-frequency resource and the resource sent by the second service of the user terminal are in the time domain, the sending of the second service is abandoned, and the second service is other than the first service. Other business.
  • the method further includes:
  • the first The sending of the second service is a service other than the first service.
  • the SA of the first service is used to indicate a sending parameter of the first service; and the sending parameter includes at least one of the following:
  • the SA sends a frequency band indication
  • the SA sends a carrier indication
  • the SA sends a partial bandwidth BWP (Band Width Part) indication
  • the SA sends a time-frequency resource indication
  • the sending parameter further includes:
  • the new indication indication field in the SA is used to indicate that the data indicated by the SA is the first service.
  • the SA and the data in the first service are a Time Division Multiplexing (TDM) and/or a Frequency Division Multiplexing (FDM).
  • TDM Time Division Multiplexing
  • FDM Frequency Division Multiplexing
  • the embodiment of the present disclosure further provides a user terminal, including:
  • the baseband parameter selection module is configured to select a baseband parameter according to a preset rule before the user terminal starts to send the first service;
  • the first service is a collaborative information interaction service;
  • a determining module configured to determine a transmit carrier and/or a partial bandwidth after selecting a baseband parameter
  • a resource selection module configured to select, on the carrier and/or part of the bandwidth, a target time-frequency resource that sends the first service.
  • the baseband parameter includes a first baseband parameter of the control signaling SA and a second baseband parameter of the data data.
  • the preset rule includes any one of the following:
  • the second baseband parameter selecting, according to the correspondence between the condition parameter and the target object, the second baseband parameter, where the first baseband parameter is configured by a network side device or a fixed parameter value agreed by the protocol;
  • the baseband parameter of the received SA is used as the first baseband parameter, and the received data is Baseband parameters as the second baseband parameter;
  • the target object is a network-side device configuration or a protocol-defined optional baseband parameter configuration, where the baseband parameter configuration includes a time domain resource granularity configuration and a frequency domain resource sub-carrier spacing configuration, where the condition parameter includes a service delay requirement. At least one of a data transmission rate requirement, a reliability requirement, a quality of service QoS, and a moving speed of the user terminal.
  • Embodiments of the present disclosure also provide a user terminal including a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor is configured to read a program in the memory and perform the following process:
  • the baseband parameter is selected according to a preset rule;
  • the first service is a collaborative information interaction service;
  • the transceiver is configured to select a baseband parameter according to a preset rule before the user terminal starts to send the first service;
  • the first service is a collaborative information interaction service;
  • the baseband parameter includes a first baseband parameter of the control signaling SA and a second baseband parameter of the data data.
  • the preset rule includes any one of the following:
  • the second baseband parameter selecting, according to the correspondence between the condition parameter and the target object, the second baseband parameter, where the first baseband parameter is configured by a network side device or a fixed parameter value agreed by the protocol;
  • the baseband parameter of the received SA is used as the first baseband parameter, and the received data is Baseband parameters as the second baseband parameter;
  • the target object is a network-side device configuration or a protocol-defined optional baseband parameter configuration, where the baseband parameter configuration includes a time domain resource granularity configuration and a frequency domain resource sub-carrier spacing configuration, where the condition parameter includes a service delay requirement. At least one of a data transmission rate requirement, a reliability requirement, a quality of service QoS, and a moving speed of the user terminal.
  • the selecting the target time-frequency resource for sending the first service on the carrier and/or part of the bandwidth includes:
  • N is a positive integer
  • N is determined according to a preset ratio of the first candidate time-frequency resource.
  • performing the exclusion of the occupied resources on the first candidate time-frequency resource, and obtaining the second candidate time-frequency resource includes:
  • the second occupied resource is excluded from the first candidate time-frequency resource, and the second candidate time-frequency resource is obtained, where the second occupied resource is an unavailable resource specified by LTE-V2X;
  • the first sub-time-frequency resource includes all resources on the time domain resource where the first transmission resource is located, and the first transmission resource is another SA or data indicating that the first service of the same system has been received by the user terminal.
  • the second sub-time-frequency resource includes all resources on the time domain resource where the second transmission resource is located, and the second transmission resource sends the second service occupation and the user terminal / or reserved resources, the second service is other services than the first service.
  • the measurement of the PSSCH-RSRP is not performed on the first occupied resource.
  • the processor is further configured to read a program in the memory, and perform the following process:
  • the transceiver is further configured to: if the target time-frequency resource and the resource sent by the second service of the user terminal are in the time domain, the second service is discarded, and the second service is Other services other than the first service.
  • the processor is further configured to read a program in the memory, and perform the following process:
  • the first The sending of the second service, where the second service is other than the first service
  • the transceiver is further configured to: when received, other occupied or/or reserved transmission resources indicating SA or data indications of the same system driving service, and resources sent by the second service of the user terminal are turned in the time domain. And stacking, the sending of the second service is abandoned, and the second service is another service except the first service.
  • the SA of the first service is used to indicate a sending parameter of the first service; and the sending parameter includes at least one of the following:
  • the SA sends a frequency band indication
  • the SA sends a carrier indication
  • the SA sends a partial bandwidth BWP indication
  • the SA sends a time-frequency resource indication
  • the sending parameter further includes:
  • the new indication indication field in the SA is used to indicate that the data indicated by the SA is the first service.
  • the multiplexing mode of the SA and the data in the first service is a time division multiplexing TDM and/or a frequency division multiplexing FDM mode.
  • Embodiments of the present disclosure also provide a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of the resource selection method described above.
  • the baseband parameter is selected according to the preset rule; the first service is a collaborative information interaction service; after the baseband parameter is selected, the transmission carrier and/or part of the bandwidth is determined. Transmitting, by the carrier and/or part of the bandwidth, a target time-frequency resource for transmitting the first service.
  • resource selection for cooperative information interaction service transmission can be implemented in the NR system, and flexible baseband parameter configuration is supported, which can meet the low latency requirement of the cooperative driving service.
  • FIG. 1 is a schematic structural diagram of a network applicable to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a resource selection method provided by an embodiment of the present disclosure
  • FIG. 3 is a structural diagram of a user terminal according to an embodiment of the present disclosure.
  • FIG. 4 is a structural diagram of another user terminal according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a network structure applicable to an embodiment of the present disclosure.
  • a user equipment (User Equipment, UE) 11 and a network side device 12 are illustrated.
  • the user terminal 11 may be a mobile phone or a vehicle.
  • a terminal side device such as a terminal, it should be noted that the specific type of the user terminal 11 is not limited in the embodiment of the present disclosure.
  • the network side device 12 may be a base station, for example, a macro station, an LTE eNB, a 5G NR NB, etc.; the network side device 12 may also be a small station, such as a low power node (LPN) pico, a femto, etc., or The network side device 12 may be an access point (AP); the base station may also be a network node formed by a central unit (CU) and a plurality of transmission reception points (TRPs) managed and controlled by the central unit (CU). . It should be noted that the specific type of the network side device 12 is not limited in the embodiment of the present disclosure.
  • FIG. 2 is a flowchart of a resource selection method according to an embodiment of the present disclosure. As shown in FIG. 2, the method includes the following steps:
  • Step 201 Before the user terminal starts to send the first service, select a baseband parameter according to a preset rule; the first service is a collaborative information interaction service;
  • each user terminal that participates in the collaborative information interaction service is configured with a triggering condition, where the triggering condition is used to trigger the user terminal to send the collaborative information interactive service.
  • the trigger condition may be configured by the network side device, or may be agreed by a protocol.
  • the specific content of the trigger condition can be set according to actual needs, and is not further limited herein.
  • the baseband parameter may include a first baseband parameter of the control signaling SA and a second baseband parameter of the data data.
  • the preset rule may be set according to actual needs.
  • the preset rule includes multiple rules. Specifically, the preset rule includes any one of the following:
  • Rule 1 The first baseband parameter is selected according to the correspondence between the condition parameter and the target object, and the second baseband parameter is the same as the second baseband parameter.
  • Rule 2 Select a second baseband parameter according to the correspondence between the condition parameter and the target object, where the first baseband parameter is configured by a network side device or a fixed parameter value agreed by a protocol.
  • Rule 3 Select a first baseband parameter and a second baseband parameter according to the correspondence between the condition parameter and the target object, the first baseband parameter being the same as or different from the second baseband parameter.
  • Rule 4 In the case that the SA or data indicating the first service sent by the user terminal other than the user terminal is received, the baseband parameter of the received SA is received as the first baseband parameter, and the baseband parameter is received. The baseband parameter of the data is used as the second baseband parameter.
  • the target object is a network-side device configuration or a protocol-defined optional baseband parameter configuration, where the baseband parameter configuration includes a time domain resource granularity configuration and a frequency domain resource sub-carrier spacing configuration, where the condition parameter includes a service delay requirement. At least one of a data transmission rate requirement, a reliability requirement, a quality of service QoS, and a moving speed of the user terminal.
  • the service delay requirement can be prioritized for Rule 1, Rule 2, and Rule 3.
  • the method of selecting the first baseband parameter or the second baseband parameter according to the correspondence between the condition parameter and the target object may be set according to actual needs, and is not further limited herein. For example, low latency requirements correspond to shorter time domain resource granularity configurations, high data transmission rate requirements correspond to larger subcarrier spacing configurations, high reliability requirements, high quality of service QoS requirements, and user terminal high mobility speeds correspond to longer time domain resource granularities. Configuration,
  • Step 202 after selecting a baseband parameter, determining to transmit a carrier and/or a partial bandwidth
  • a carrier may include one or more partial bandwidths. After determining the baseband parameters, if the baseband parameters are in one-to-one correspondence with the carrier or part of the bandwidth, the carrier and/or part of the bandwidth may be directly determined according to the selected baseband parameters; if the relationship between the baseband parameters and the carrier or part of the bandwidth is a pair If there are many, the carrier and/or partial bandwidth can be selected according to other corresponding parameters.
  • the other corresponding parameters may include: a correspondence between the candidate partial bandwidth and the service attribute, a load of the candidate partial bandwidth, and a resource occupation exclusion result on the candidate partial bandwidth.
  • Step 203 Select, on the carrier and/or part of the bandwidth, a target time-frequency resource that sends the first service.
  • the selection of the target time-frequency resource may be performed according to the selection process of the LTE-V2X single-carrier transmission resource.
  • the selection process of the LTE-V2X single carrier transmission resource in the related art includes the following three steps:
  • the first step is to mark all candidate resources in the resource selection window as available
  • the exclusion of occupied resources is carried out, and the occupied resources include two types;
  • the UE in the sensing window, the UE itself transmits and cannot monitor the service packet sent by other UEs in the sending subframe, and the subframe becomes a skip subframe. It is assumed that other UEs in the subframe reserve the next resource in all cycles of the system configuration, and the reserved resources overlap with the candidate subframes, or 1, 2, ..., 10*counter–1 after the candidate subframes.
  • the secondary transmission subframe overlaps, and the above candidate subframe needs to be excluded.
  • the candidate subframe is a first type of occupied resource defined by LTE-V2X.
  • the SA sent by other UEs is monitored in the sensing window, according to the period and resource reservation information learned from the SA, if the reserved resources overlap with the candidate resources, or 1, 2, ..., 10*counter after the candidate subframes – If the transmission resource overlap is performed once, and the PSSCH-RSRP measured by the SA is higher than the threshold, the corresponding candidate resources need to be excluded.
  • the corresponding candidate resource is a second type of occupied resource defined by LTE-V2X.
  • the threshold value is increased by 3 dB, and the elimination process is re-executed until the remaining resource ratio reaches or exceeds 20%.
  • the candidate resources are subjected to S-RSSI measurement and sorting, and the lowest 20% resource of the S-RSSI measurement value is selected, and the upper layer selects resources from the above 20% candidate resources.
  • the process of selecting the target time-frequency resource includes the following four steps:
  • N is a positive integer, and N is based on the first candidate time-frequency resource (the first candidate time-frequency resource is a candidate in the selection process of the LTE-V2X single-carrier transmission resource in the related art, all candidates in the resource selection window)
  • the preset ratio of resources (for example, 20%) is determined.
  • the exclusion of the occupied resources may be consistent with or different from the occupied resource exclusion manner in the related art.
  • the occupied resource may include a newly defined first occupied resource and a second occupied resource defined in LTE-V2X, where the second occupied resource includes the first occupied resource and the second type. Occupy resources.
  • the foregoing candidate time-frequency resources are excluded from the first candidate time-frequency resource, and the second candidate time-frequency resource is obtained by:
  • the second occupied resource is excluded from the first candidate time-frequency resource, and the second candidate time-frequency resource is obtained, where the second occupied resource is an unavailable resource specified by LTE-V2X;
  • the first sub-time-frequency resource includes all resources on the time domain resource where the first transmission resource is located, and the first transmission resource is another SA or data indicating that the first service of the same system has been received by the user terminal.
  • the second sub-time-frequency resource includes all resources on the time domain resource where the second transmission resource is located, and the second transmission resource sends the second service occupation and the user terminal / or reserved resources, the second service is other services than the first service.
  • the selected target time-frequency resource and the resources of other user terminal cooperative information interaction services do not overlap in the time domain.
  • the foregoing second sub-time-frequency resource is excluded, so that the selected target time-frequency resource can avoid the conflict with the resource sent by the second service of the user terminal in the time domain. In this way, the service that needs to perform collaborative information interaction can be effectively avoided, and some services cannot be successfully received due to the half-duplex effect, thereby affecting the final decision.
  • the baseband parameter is selected according to the preset rule; the first service is a collaborative information interaction service; after the baseband parameter is selected, the transmission carrier and/or part of the bandwidth is determined. Transmitting, by the carrier and/or part of the bandwidth, a target time-frequency resource for transmitting the first service.
  • resource selection for cooperative information interaction service transmission can be implemented in the NR system, and flexible baseband parameter configuration is supported, which can meet the low latency requirement of the cooperative driving service.
  • the measurement of the PSSCH-RSRP is not performed on the first occupied resource.
  • the target time-frequency resource may conflict with the transmission resource of the second service of the user terminal in the time domain.
  • the transmission of the second service can be abandoned.
  • the method may further include:
  • the target time-frequency resource and the resource sent by the second service of the user terminal are in the time domain, the sending of the second service is abandoned, and the second service is other than the first service. Other business.
  • the method may further include:
  • the received and/or reserved transmission resources indicated by the control signaling SA or the data data indicating the driving service of the same system have overlapped with the resources transmitted by the second service of the user terminal in the time domain, then The sending of the second service is abandoned, and the second service is a service other than the first service.
  • the second service transmission of the user terminal overlaps with the transmission resource of the resource transmitted by another user terminal in the time domain, the second service transmission of the user terminal is abandoned, so that the second transmission may be avoided.
  • the service is unable to receive the first service sent by other user terminals, thus ensuring the reliability of the reception of the coordinated information interaction service and avoiding the impact of the transmission of the second service on the reception of the first service.
  • the SA of the first service is used to indicate a sending parameter of the first service
  • the sending parameter includes at least one of the following:
  • the SA sends a frequency band indication
  • the SA sends a carrier indication
  • the SA sends a partial bandwidth BWP indication
  • the SA sends a time-frequency resource indication
  • sending parameters further include:
  • the new indication indication field in the SA is used to indicate that the data indicated by the SA is the first service.
  • the multiplexing mode of the SA and the data may be set according to actual needs.
  • the multiplexing mode of the SA and the data in the first service is time division multiplexing TDM and/or frequency division multiplexing. FDM method.
  • FIG. 3 is a structural diagram of a user terminal according to an embodiment of the present disclosure. As shown in FIG. 3, the user terminal 300 includes:
  • the baseband parameter selection module 301 is configured to select a baseband parameter according to a preset rule before the user terminal starts to send the first service;
  • the first service is a collaborative information interaction service;
  • a determining module 302 configured to determine a transmit carrier and/or a partial bandwidth after selecting a baseband parameter
  • the resource selection module 303 is configured to select, on the carrier and/or part of the bandwidth, a target time-frequency resource that sends the first service.
  • the baseband parameter includes a first baseband parameter of the control signaling SA and a second baseband parameter of the data data.
  • the preset rule includes any one of the following:
  • the second baseband parameter selecting, according to the correspondence between the condition parameter and the target object, the second baseband parameter, where the first baseband parameter is configured by a network side device or a fixed parameter value agreed by the protocol;
  • the baseband parameter of the received SA is used as the first baseband parameter, and the received data is Baseband parameters as the second baseband parameter;
  • the target object is a network-side device configuration or a protocol-defined optional baseband parameter configuration, where the baseband parameter configuration includes a time domain resource granularity configuration and a frequency domain resource sub-carrier spacing configuration, where the condition parameter includes a service delay requirement. At least one of a data transmission rate requirement, a reliability requirement, a quality of service QoS, and a moving speed of the user terminal.
  • the user terminal 300 may be a user terminal in any embodiment of the method in the embodiment of the disclosure, and any implementation manner of the user terminal in the method embodiment of the disclosure may be used in this embodiment.
  • the above-mentioned user terminal 300 is implemented, and the same beneficial effects are achieved, and details are not described herein again.
  • FIG. 4 is a structural diagram of another user terminal according to an implementation of the present disclosure.
  • the user terminal includes: a transceiver 410, a memory 420, a processor 400, and the memory 420. And a computer program operable on the processor 400, wherein:
  • the processor 400 is configured to read a program in the memory 420 and perform the following process:
  • the baseband parameter is selected according to a preset rule;
  • the first service is a collaborative information interaction service;
  • the transceiver 410 is configured to select a baseband parameter according to a preset rule before the user terminal starts to send the first service;
  • the first service is a collaborative information interaction service;
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 400 and various circuits of memory represented by memory 420.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 410 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.
  • the memory 420 is not limited to be only on the user terminal, and the memory 420 and the processor 400 may be separated into different geographical locations.
  • the baseband parameter includes a first baseband parameter of the control signaling SA and a second baseband parameter of the data data.
  • the preset rule includes any one of the following:
  • the second baseband parameter selecting, according to the correspondence between the condition parameter and the target object, the second baseband parameter, where the first baseband parameter is configured by a network side device or a fixed parameter value agreed by the protocol;
  • the baseband parameter of the received SA is used as the first baseband parameter, and the received data is Baseband parameters as the second baseband parameter;
  • the target object is a network-side device configuration or a protocol-defined optional baseband parameter configuration, where the baseband parameter configuration includes a time domain resource granularity configuration and a frequency domain resource sub-carrier spacing configuration, where the condition parameter includes a service delay requirement. At least one of a data transmission rate requirement, a reliability requirement, a quality of service QoS, and a moving speed of the user terminal.
  • the selecting the target time-frequency resource for sending the first service on the carrier and/or part of the bandwidth includes:
  • N is a positive integer
  • N is determined according to a preset ratio of the first candidate time-frequency resource.
  • performing the exclusion of the occupied resources on the first candidate time-frequency resource, and obtaining the second candidate time-frequency resource includes:
  • the second occupied resource is excluded from the first candidate time-frequency resource, and the second candidate time-frequency resource is obtained, where the second occupied resource is an unavailable resource specified by LTE-V2X;
  • the first sub-time-frequency resource includes all resources on the time domain resource where the first transmission resource is located, and the first transmission resource is another SA or data indicating that the first service of the same system has been received by the user terminal.
  • the second sub-time-frequency resource includes all resources on the time domain resource where the second transmission resource is located, and the second transmission resource sends the second service occupation and the user terminal / or reserved resources, the second service is other services than the first service.
  • the measurement of the PSSCH-RSRP is not performed on the first occupied resource.
  • the processor 400 is further configured to read a program in the memory 420, and perform the following process:
  • the transceiver 410 is further configured to: if the target time-frequency resource and the resource sent by the second service of the user terminal are in the time domain, the second service is discarded, and the second service is Other business than the first business.
  • the processor 400 is further configured to read a program in the memory 420 and perform the following process:
  • the first The sending of the second service, where the second service is other than the first service
  • the transceiver 410 is further configured to: in the time domain, the received and/or reserved transmission resources indicated by the SA or data indication indicating the driving service of the same system and the resources sent by the second service of the user terminal. If the overlap occurs, the sending of the second service is abandoned, and the second service is a service other than the first service.
  • the SA of the first service is used to indicate a sending parameter of the first service; and the sending parameter includes at least one of the following:
  • the SA sends a frequency band indication
  • the SA sends a carrier indication
  • the SA sends a partial bandwidth BWP indication
  • the SA sends a time-frequency resource indication
  • the sending parameter further includes:
  • the new indication indication field in the SA is used to indicate that the data indicated by the SA is the first service.
  • the multiplexing mode of the SA and the data in the first service is a time division multiplexing TDM and/or a frequency division multiplexing FDM mode.
  • the embodiment of the present disclosure further provides a computer readable storage medium, where the computer program is stored, and when the program is executed by the processor, the steps in the resource selection method provided by the embodiment of the present disclosure are implemented.
  • the disclosed methods and apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

Abstract

本公开提供一种资源选择方法及用户终端,该方法包括:在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;在选择基带参数后,确定发送载波和/或部分带宽;在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。

Description

资源选择方法及用户终端
相关申请的交叉引用
本申请主张在2018年2月9日在中国提交的中国专利申请No.201810136887.5的优先权,其全部内容通过引用包含于此。
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及用户终端。
背景技术
随着移动通信业务需求的发展变化,ITU(International Telecommunication Union,国际电信联盟)和3GPP等组织都开始研究新的无线通信系统(例如5G NR,5 Generation New RAT)。众所周知,相关技术中的LTE-V2X通信系统中,主要是在单载波上进行资源选择无法满足协同驾驶业务的低时延需求。因此亟需解决NR系统中协同信息交互业务发送的资源选择的问题,以满足协同驾驶业务的低时延需求。
发明内容
本公开实施例提供一种资源选择方法及用户终端,以解决NR系统中协同信息交互业务发送的资源选择的问题。
本公开实施例提供了一种资源选择方法,应用于用户终端,包括:
在用户终端开始进行第一业务发送前,按照预设规则选择基带参数numerology;所述第一业务为协同信息交互业务;
在选择基带参数后,确定发送载波和/或部分带宽;
在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
可选地,所述基带参数包括控制信令SA(Scheduling Assignment)的第一基带参数和数据data的第二基带参数。
可选地,所述预设规则包括以下任一项:
根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带 参数与第二基带参数相同;
根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值;
根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数;
其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS(Quality of Service)、用户终端的移动速度中的至少一项。
可选地,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源,包括:
在所述载波和/或部分带宽上确定资源选择窗内的第一候选时频资源;
对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源;
对所述第二候选时频资源进行直通链路接收信号强度指示S-RSSI(Sidelink Received Signal Strength Indicator)测量,选择S-RSSI测量值最低的前N个第二候选时频资源;
从所述N个第二候选时频资源选择发送第一业务的目标时频资源;
其中,N为正整数,N根据所述第一候选时频资源的预设比例确定。
可选地,所述对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源包括:
从所述第一候选时频资源中排除第一占用资源,所述第一占用资源包括第一子时频资源和第二子时频资源中的至少一项;
在排除所述第一占用资源后,从所述第一候选时频资源中排除第二占用资源,得到第二候选时频资源,所述第二占用资源为LTE-V2X规定的不可用资源;
其中,所述第一子时频资源包括第一发送资源所在时域资源上的所有资源,所述第一发送资源为所述用户终端已接收到的其他指示同类系统第一业务的SA或者data指示的占用和/或预留的资源;所述第二子时频资源包括第二发送资源所在时域资源上的所有资源,所述第二发送资源为所述用户终端发送第二业务占用和/或预留的资源,所述第二业务为除所述第一业务之外的其他业务。
可选地,所述第一占用资源上不进行物理直通链路共享信道的参考信号接收功率PSSCH(Physical Sidelink Shared Channel)-RSRP(Reference Signal Receiving Power)的测量。
可选地,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源之后,所述方法还包括:
若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
可选地,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源之后,所述方法还包括:
若已接收到的其他指示同类系统驾驶业务的SA或者data指示的占用和/或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
可选地,所述第一业务的SA用于指示所述第一业务的发送参数;所述发送参数包括以下至少一项:
SA发送频段指示;
SA发送载波指示;
SA发送部分带宽BWP(Band Width Part)指示;
SA发送时频资源指示;
data发送频段指示;
data发送载波指示;
data发送部分带宽BWP指示;
data发送时频资源指示;
编码调制指示;
优先级指示。
可选地,所述发送参数还包括:
在所述SA中的优先级域中,将第一业务的优先级设置为最高优先级;
或者,在所述SA新增加指示域,用于指示所述SA指示的data为第一业务。
可选地,所述第一业务中的SA和data为时分复用TDM(Time Division Multiplexing)和/或频分复用FDM(Frequency Division Multiplexing)方式。
本公开实施例还提供了一种用户终端,包括:
基带参数选择模块,用于在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
确定模块,用于在选择基带参数后,确定发送载波和/或部分带宽;
资源选择模块,用于在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
可选地,所述基带参数包括控制信令SA的第一基带参数和数据data的第二基带参数。
可选地,所述预设规则包括以下任一项:
根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带参数与第二基带参数相同;
根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值;
根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数;
其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS、用户终端的移动速度中的至少一项。
本公开实施例还提供了一种用户终端,包括收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,
所述处理器用于读取存储器中的程序,执行下列过程:
在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
在选择基带参数后,确定发送载波和/或部分带宽;
在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源;
或者,
所述收发机用于在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
在选择基带参数后,确定发送载波和/或部分带宽;
在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
可选地,所述基带参数包括控制信令SA的第一基带参数和数据data的第二基带参数。
可选地,所述预设规则包括以下任一项:
根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带参数与第二基带参数相同;
根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值;
根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的 SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数;
其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS、用户终端的移动速度中的至少一项。
可选地,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源,包括:
在所述载波和/或部分带宽上确定资源选择窗内的第一候选时频资源;
对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源;
对所述第二候选时频资源进行S-RSSI测量,选择S-RSSI测量值最低的前N个第二候选时频资源;
从所述N个第二候选时频资源选择发送第一业务的目标时频资源;
其中,N为正整数,N根据所述第一候选时频资源的预设比例确定。
可选地,所述对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源包括:
从所述第一候选时频资源中排除第一占用资源,所述第一占用资源包括第一子时频资源和第二子时频资源中的至少一项;
在排除所述第一占用资源后,从所述第一候选时频资源中排除第二占用资源,得到第二候选时频资源,所述第二占用资源为LTE-V2X规定的不可用资源;
其中,所述第一子时频资源包括第一发送资源所在时域资源上的所有资源,所述第一发送资源为所述用户终端已接收到的其他指示同类系统第一业务的SA或者data指示的占用和/或预留的资源;所述第二子时频资源包括第二发送资源所在时域资源上的所有资源,所述第二发送资源为所述用户终端 发送第二业务占用和/或预留的资源,所述第二业务为除所述第一业务之外的其他业务。
可选地,所述第一占用资源上不进行PSSCH-RSRP的测量。
可选地,所述处理器还用于读取存储器中的程序,执行下列过程:
若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务;
或者,
所述收发机还用于若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
可选地,所述处理器还用于读取存储器中的程序,执行下列过程:
若已接收到的其他指示同类系统驾驶业务的SA或者data指示的占用和/或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务;
所述收发机还用于若已接收到的其他指示同类系统驾驶业务的SA或者data指示的占用和/或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
可选地,所述第一业务的SA用于指示所述第一业务的发送参数;所述发送参数包括以下至少一项:
SA发送频段指示;
SA发送载波指示;
SA发送部分带宽BWP指示;
SA发送时频资源指示;
data发送频段指示;
data发送载波指示;
data发送部分带宽BWP指示;
data发送时频资源指示;
编码调制指示;
优先级指示。
可选地,所述发送参数还包括:
在所述SA中的优先级域中,将第一业务的优先级设置为最高优先级;
或者,在所述SA新增加指示域,用于指示所述SA指示的data为第一业务。
可选地,所述第一业务中的SA和data的复用方式为时分复用TDM和/或频分复用FDM方式。
本公开实施例还提供了一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现上述资源选择方法的步骤。
本公开实施例中,在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;在选择基带参数后,确定发送载波和/或部分带宽;在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。这样,在NR系统中可以实现协同信息交互业务发送的资源选择,同时支持灵活的基带参数配置,可以满足协同驾驶业务的低时延需求。
附图说明
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是本公开实施例可应用的网络结构示意图;
图2是本公开实施例提供的资源选择方法的流程图;
图3是本公开实施例提供的一种用户终端的结构图;
图4是本公开实施例提供的另一种用户终端的结构图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开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公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,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,都属于本公开保护的范围。
参见图1,图1是本公开实施例可应用的网络结构示意图,如图1所示,包括用户终端(User Equipment,UE)11和网络侧设备12,其中,用户终端11可以是手机或车载终端等终端侧设备,需要说明的是,在本公开实施例中并不限定用户终端11的具体类型。网络侧设备12可以是基站,例如:宏站、LTE eNB、5G NR NB等;网络侧设备12也可以是小站,如低功率节点(Low Power Node,LPN)pico、femto等小站,或者网络侧设备12可以接入点(AP,access point);基站也可以是中央单元(Central Unit,CU)与其管理是和控制的多个传输接收点(Transmission Reception Point,TRP)共同组成的网络节点。需要说明的是,在本公开实施例中并不限定网络侧设备12的具体类型。
参见图2,图2是本公开实施例提供的一种资源选择方法的流程图,如图2所示,包括以下步骤:
步骤201,在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
本实施例中,每个参与协同信息交互业务的用户终端都设置有触发条件,该触发条件用于触发用户终端发送协同信息交互业务。具体的,该触发条件可以由网络侧设备进行配置,也可以由通过协议约定。触发条件的具体内容可以根据实际需要进行设置,在此不做进一步的限定。
在本实施例中,上述基带参数可以包括控制信令SA的第一基带参数和数据data的第二基带参数。
应当说明的是,上述第一基带参数与第二基带参数可以相同,也可以不同。上述预设规则可以根据实际需要进行设置,在本实施例中,上述预设规则包括多种规则,具体的,所述预设规则包括以下任一项:
规则一:根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带参数与第二基带参数相同。
规则二:根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值。
规则三:根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同。
规则四:在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数。
规则五:在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数。
其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS、用户终端的移动速度中的至少一项。
在本实施例中,对于规则一、规则二和规则三可以优先考虑业务时延需求。其中,在根据条件参数与目标对象的对应关系选择第一基带参数或者第二基带参数时,选择的方式可以根据实际需要进行设置,在此不做进一步的限定。例如低时延需求对应较短时域资源粒度配置、高数据传输速率需求对应较大子载波间隔配置、高可靠性需求、高服务质量QoS要求、用户终端高移动速度对应较长时域资源粒度配置,
步骤202,在选择基带参数后,确定发送载波和/或部分带宽;
本实施例中,一载波可以包括一个或者多个部分带宽。其中,在确定基带参数后,若基带参数与载波或部分带宽一一对应,可以直接根据选择的基带参数确定载波和/或部分带宽;若基带参数与载波或部分带宽的对应的关系为一对多,则可以根据其他相应的参数进行载波和/或部分带宽的选择。具体的,其他相应参数可以包括:候选部分带宽与业务属性的对应关系,候选部分带宽的负载、所述候选部分带宽上的资源占用排除结果。
步骤203,在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
本实施例中,可以依据LTE-V2X单载波上发送资源的选择流程进行目标时频资源的选择。其中相关技术中的LTE-V2X单载波上发送资源的选择流程 包括以下三步:
第一步,将资源选择窗内的所有候选资源标记为可用;
第二步,进行已占用资源的排除,已占用资源包括两类;
具体的,该步骤中,在sensing窗口中,UE自身进行发送而无法在发送子帧上监听到其他UE发送的业务包,上述子帧成为skip子帧。需要假定该子帧上其他UE以系统配置的所有周期均预约了下一次资源,且预约的资源与候选子帧交叠,或者与候选子帧之后的1,2,…,10*counter–1次发送子帧交叠,需要将上述候选子帧排除。该候选子帧为LTE-V2X定义的第一类占用资源。
在sensing窗口中监听到了其他UE发送的SA,根据从SA中获知的周期和资源预约信息,如果预约的资源与候选资源交叠,或者与候选子帧之后的1,2,…,10*counter–1次发送资源交叠,且根据SA测量到的PSSCH-RSRP高于的门限值,则相应的候选资源需要被排除。该相应的候选资源为LTE-V2X定义的第二类占用资源。
其中,如果在第二步排除后、剩余资源比例低于20%,则将门限值提升3dB,重新执行排除过程,直至剩余资源比例达到或高于20%为止。
第三步,对候选资源进行S-RSSI测量和排序,选择出S-RSSI测量值最低的20%资源,由高层从上述20%候选资源中进行资源选择。
基于相关技术中的LTE-V2X单载波上发送资源的选择流程,本实施例中,选择上述目标时频资源的流程包括以下四个步骤:
在所述载波和/或部分带宽上确定资源选择窗内的第一候选时频资源;
对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源;
对所述第二候选时频资源进行S-RSSI测量,选择S-RSSI测量值最低的前N个第二候选时频资源;
从所述N个第二候选时频资源选择发送第一业务的目标时频资源;
其中,N为正整数,N根据所述第一候选时频资源(该第一候选时频资源为相关技术中的LTE-V2X单载波上发送资源的选择流程中,资源选择窗内的所有候选资源)的预设比例(例如20%)确定。
具体的,对已占用资源的排除可以与相关技术中的占用资源排除方式一致也可以不同。在本实施例中,可选地,上述已占用资源可以包括新定义的第一占用资源和LTE-V2X中定义的第二占用资源,该第二占用资源包括上述第一占用资源和第二类占用资源。这样,在本实施例中,上述对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源包括:
从所述第一候选时频资源中排除第一占用资源,所述第一占用资源包括第一子时频资源和第二子时频资源中的至少一项;
在排除所述第一占用资源后,从所述第一候选时频资源中排除第二占用资源,得到第二候选时频资源,所述第二占用资源为LTE-V2X规定的不可用资源;
其中,所述第一子时频资源包括第一发送资源所在时域资源上的所有资源,所述第一发送资源为所述用户终端已接收到的其他指示同类系统第一业务的SA或者data指示的占用和/或预留的资源;所述第二子时频资源包括第二发送资源所在时域资源上的所有资源,所述第二发送资源为所述用户终端发送第二业务占用和/或预留的资源,所述第二业务为除所述第一业务之外的其他业务。
通过对上述第一子时频资源进行排除,可以使得选择的目标时频资源与其他用户终端协同信息交互业务的资源在时域上不交叠。同时对上述第二子时频资源进行排除,可以使得选择的目标时频资源避免与本用户终端第二业务发送的资源在时域上冲突。这样,可以有效避免了需进行协同信息交互的业务由于半双工影响造成部分业务无法被成功接收从而影响最终的决策。
本公开实施例中,在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;在选择基带参数后,确定发送载波和/或部分带宽;在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。这样,在NR系统中可以实现协同信息交互业务发送的资源选择,同时支持灵活的基带参数配置,可以满足协同驾驶业务的低时延需求。
进一步地,在本实施例中,由于上述第一占用资源已经排除了,在排除第二资源时,为了提高处理效率,在上述第一占用资源上不进行PSSCH-RSRP 的测量。
在选择完上述目标时频资源后,目标时频资源可能与本用户终端的第二业务的发送资源在时域上产生冲突,对此,在本实施例中,为了保证第一业务的发送,可以放弃第二业务的发送。具体的,在上述步骤203之后,该方法还可以包括:
若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
这样,在目标视频资源上进行第一业务的正常发送,保证了协同信息交互业务发送的可靠性,避免第二业务的发送对第一业务发送产生的影响。
进一步地,在上述步骤203之后,还可以包括:
若已接收到的其他指示同类系统驾驶业务的控制信令SA或者数据data指示的占用和/或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
本实施例中,当本用户终端的第二业务发送与其他用户终端发送资源的发送资源在时域上交叠的状态下,放弃本用户终端第二业务的发送,这样可以避免因发送第二业务造成无法接收到其他用户终端发送的第一业务,因此保证了协同信息交互业务接收的可靠性,避免第二业务的发送对第一业务接收产生的影响。
可选地,在本实施例中,可以所述第一业务的SA用于指示所述第一业务的发送参数;所述发送参数包括以下至少一项:
SA发送频段指示;
SA发送载波指示;
SA发送部分带宽BWP指示;
SA发送时频资源指示;
data发送频段指示;
data发送载波指示;
data发送部分带宽BWP指示;
data发送时频资源指示;
编码调制指示;
优先级指示。
进一步地,上述发送参数还包括:
在所述SA中的优先级域中,将第一业务的优先级设置为最高优先级;
或者,在所述SA新增加指示域,用于指示所述SA指示的data为第一业务。
可选地,对于SA和data的复用方式可以根据实际需要进行设置,例如在本实施例中,第一业务中的SA和data的复用方式为时分复用TDM和/或频分复用FDM方式。
需要说明的是,本公开实施例中介绍的多种可选的实施方式,彼此可以相互结合实现,也可以单独实现,对此本公开实施例不作限定。
参见图3,图3是本公开实施例提供的用户终端的结构图,如图3所示,用户终端300包括:
基带参数选择模块301,用于在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
确定模块302,用于在选择基带参数后,确定发送载波和/或部分带宽;
资源选择模块303,用于在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
可选地,所述基带参数包括控制信令SA的第一基带参数和数据data的第二基带参数。
可选地,所述预设规则包括以下任一项:
根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带参数与第二基带参数相同;
根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值;
根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的 SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数;
其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS、用户终端的移动速度中的至少一项。
需要说明的是,本实施例中上述用户终端300可以是本公开实施例中方法实施例中任意实施方式的用户终端,本公开方法实施例中用户终端的任意实施方式都可以被本实施例中的上述用户终端300所实现,以及达到相同的有益效果,此处不再赘述。
请参考图4,图4是本公开实施提供的另一种用户终端的结构图,如图4所示,该用户终端包括:收发机410、存储器420、处理器400及存储在所述存储器420上并可在所述处理器400上运行的计算机程序,其中:
所述处理器400用于读取存储器420中的程序,执行下列过程:
在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
在选择基带参数后,确定发送载波和/或部分带宽;
在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源;
或者,
所述收发机410用于在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
在选择基带参数后,确定发送载波和/或部分带宽;
在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
在图4中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器400代表的一个或多个处理器和存储器420代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的 各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机410可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
处理器400负责管理总线架构和通常的处理,存储器420可以存储处理器400在执行操作时所使用的数据。
需要说明的是,存储器420并不限定只在用户终端上,也可以将存储器420和处理器400分离处于不同的地理位置。
可选地,所述基带参数包括控制信令SA的第一基带参数和数据data的第二基带参数。
可选地,所述预设规则包括以下任一项:
根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带参数与第二基带参数相同;
根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值;
根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数;
在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数;
其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS、用户终端的移动速度中的至少一项。
可选地,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源,包括:
在所述载波和/或部分带宽上确定资源选择窗内的第一候选时频资源;
对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源;
对所述第二候选时频资源进行S-RSSI测量,选择S-RSSI测量值最低的前N个第二候选时频资源;
从所述N个第二候选时频资源选择发送第一业务的目标时频资源;
其中,N为正整数,N根据所述第一候选时频资源的预设比例确定。
可选地,所述对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源包括:
从所述第一候选时频资源中排除第一占用资源,所述第一占用资源包括第一子时频资源和第二子时频资源中的至少一项;
在排除所述第一占用资源后,从所述第一候选时频资源中排除第二占用资源,得到第二候选时频资源,所述第二占用资源为LTE-V2X规定的不可用资源;
其中,所述第一子时频资源包括第一发送资源所在时域资源上的所有资源,所述第一发送资源为所述用户终端已接收到的其他指示同类系统第一业务的SA或者data指示的占用和/或预留的资源;所述第二子时频资源包括第二发送资源所在时域资源上的所有资源,所述第二发送资源为所述用户终端发送第二业务占用和/或预留的资源,所述第二业务为除所述第一业务之外的其他业务。可选地,所述第一占用资源上不进行PSSCH-RSRP的测量。
可选地,所述处理器400还用于读取存储器420中的程序,执行下列过程:
若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务;
或者,
所述收发机410还用于若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
可选地,所述处理器400还用于读取存储器420中的程序,执行下列过 程:
若已接收到的其他指示同类系统驾驶业务的SA或者data指示的占用和/或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务;
所述收发机410还用于若已接收到的其他指示同类系统驾驶业务的SA或者data指示的占用和/或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
可选地,所述第一业务的SA用于指示所述第一业务的发送参数;所述发送参数包括以下至少一项:
SA发送频段指示;
SA发送载波指示;
SA发送部分带宽BWP指示;
SA发送时频资源指示;
data发送频段指示;
data发送载波指示;
data发送部分带宽BWP指示;
data发送时频资源指示;
编码调制指示;
优先级指示。
可选地,所述发送参数还包括:
在所述SA中的优先级域中,将第一业务的优先级设置为最高优先级;
或者,在所述SA新增加指示域,用于指示所述SA指示的data为第一业务。
可选地,所述第一业务中的SA和data的复用方式为时分复用TDM和/或频分复用FDM方式。
本公开实施例还提供一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现本公开实施例提供的资源选择方法中的步骤。
在本申请所提供的几个实施例中,应该理解到,所揭露方法和装置,可 以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理包括,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元,可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述是本公开的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (26)

  1. 一种资源选择方法,应用于用户终端,其中,所述资源选择方法包括:
    在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
    在选择基带参数后,确定发送载波和/或部分带宽;
    在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
  2. 根据权利要求1所述的方法,其中,所述基带参数包括控制信令SA的第一基带参数和数据data的第二基带参数。
  3. 根据权利要求2所述的方法,其中,所述预设规则包括以下任一项:
    根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带参数与第二基带参数相同;
    根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值;
    根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同;
    在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数;
    在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数;
    其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS、用户终端的移动速度中的至少一项。
  4. 根据权利要求1所述的方法,其中,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源,包括:
    在所述载波和/或部分带宽上确定资源选择窗内的第一候选时频资源;
    对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源;
    对所述第二候选时频资源进行直通链路接收信号强度指示S-RSSI测量,选择S-RSSI测量值最低的前N个第二候选时频资源;
    从所述N个第二候选时频资源选择发送第一业务的目标时频资源;
    其中,N为正整数,N根据所述第一候选时频资源的预设比例确定。
  5. 根据权利要求4所述的方法,其中,所述对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源包括:
    从所述第一候选时频资源中排除第一占用资源,所述第一占用资源包括第一子时频资源和第二子时频资源中的至少一项;
    在排除所述第一占用资源后,从所述第一候选时频资源中排除第二占用资源,得到第二候选时频资源,所述第二占用资源为LTE-V2X规定的不可用资源;
    其中,所述第一子时频资源包括第一发送资源所在时域资源上的所有资源,所述第一发送资源为所述用户终端已接收到的其他指示同类系统第一业务的SA或者data指示的占用和/或预留的资源;所述第二子时频资源包括第二发送资源所在时域资源上的所有资源,所述第二发送资源为所述用户终端发送第二业务占用和/或预留的资源,所述第二业务为除所述第一业务之外的其他业务。
  6. 根据权利要求5所述的方法,其中,所述第一占用资源上不进行物理直通链路共享信道的参考信号接收功率PSSCH-RSRP的测量。
  7. 根据权利要求1所述的方法,其中,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源之后,所述方法还包括:
    若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
  8. 根据权利要求1所述的方法,其中,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源之后,所述方法还包括:
    若已接收到的其他指示同类系统驾驶业务的SA或者data指示的占用和/ 或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
  9. 根据权利要求1所述的方法,其中,所述第一业务的SA用于指示所述第一业务的发送参数;所述发送参数包括以下至少一项:
    SA发送频段指示;
    SA发送载波指示;
    SA发送部分带宽BWP指示;
    SA发送时频资源指示;
    data发送频段指示;
    data发送载波指示;
    data发送部分带宽BWP指示;
    data发送时频资源指示;
    编码调制指示;
    优先级指示。
  10. 根据权利要求9所述的方法,其中,所述发送参数还包括:
    在所述SA中的优先级域中,将第一业务的优先级设置为最高优先级;
    或者,在所述SA新增加指示域,用于指示所述SA指示的data为第一业务。
  11. 根据权利要求1所述的方法,其中,所述第一业务中的SA和data的复用方式为时分复用TDM和/或频分复用FDM方式。
  12. 一种用户终端,包括:
    基带参数选择模块,用于在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
    确定模块,用于在选择基带参数后,确定发送载波和/或部分带宽;
    资源选择模块,用于在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
  13. 根据权利要求12所述的用户终端,其中,所述基带参数包括控制信令SA的第一基带参数和数据data的第二基带参数。
  14. 根据权利要求13所述的用户终端,其中,所述预设规则包括以下任 一项:
    根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带参数与第二基带参数相同;
    根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值;
    根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同;
    在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数;
    在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数;
    其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS、用户终端的移动速度中的至少一项。
  15. 一种用户终端,包括收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其中,
    所述处理器用于读取存储器中的程序,执行下列过程:
    在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
    在选择基带参数后,确定发送载波和/或部分带宽;
    在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源;
    或者,
    所述收发机用于在用户终端开始进行第一业务发送前,按照预设规则选择基带参数;所述第一业务为协同信息交互业务;
    在选择基带参数后,确定发送载波和/或部分带宽;
    在所述载波和/或部分带宽上选择发送所述第一业务的目标时频资源。
  16. 根据权利要求15所述的用户终端,其中,所述基带参数包括控制信令SA的第一基带参数和数据data的第二基带参数。
  17. 根据权利要求16所述的用户终端,其中,所述预设规则包括以下任一项:
    根据条件参数与目标对象的对应关系选择第一基带参数,所述第二基带参数与第二基带参数相同;
    根据所述条件参数与目标对象的对应关系选择第二基带参数,所述第一基带参数由网络侧设备配置或者协议约定的固定参数值;
    根据所述条件参数与目标对象的对应关系分别选择第一基带参数和第二基带参数,所述第一基带参数与所述第二基带参数相同或不同;
    在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的SA或者data的情况下,将接收到的SA的基带参数作为所述第一基带参数,将接收到的data的基带参数作为所述第二基带参数;
    在接收到除所述用户终端之外的其他用户终端发送的指示第一业务的同步信号的情况下,将同步信号的基带参数作为所述第一基带参数和第二基带参数;
    其中,所述目标对象为网络侧设备配置或者协议约定的可选基带参数配置,所述基带参数配置包括时域资源粒度配置和频域资源子载波间隔配置,所述条件参数包括业务时延需求、数据传输速率需求、可靠性需求、服务质量QoS、用户终端的移动速度中的至少一项。
  18. 根据权利要求15所述的用户终端,其中,所述在所述载波和/或部分带宽上选择发送第一业务的目标时频资源,包括:
    在所述载波和/或部分带宽上确定资源选择窗内的第一候选时频资源;
    对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源;
    对所述第二候选时频资源进行直通链路接收信号强度指示S-RSSI测量,选择S-RSSI测量值最低的前N个第二候选时频资源;
    从所述N个第二候选时频资源选择发送第一业务的目标时频资源;
    其中,N为正整数,N根据所述第一候选时频资源的预设比例确定。
  19. 根据权利要求18所述的用户终端,其中,所述对所述第一候选时频资源进行已占用资源的排除,得到第二候选时频资源包括:
    从所述第一候选时频资源中排除第一占用资源,所述第一占用资源包括第一子时频资源和第二子时频资源中的至少一项;
    在排除所述第一占用资源后,从所述第一候选时频资源中排除第二占用资源,得到第二候选时频资源,所述第二占用资源为LTE-V2X规定的不可用资源;
    其中,所述第一子时频资源包括第一发送资源所在时域资源上的所有资源,所述第一发送资源为所述用户终端已接收到的其他指示同类系统第一业务的SA或者data指示的占用和/或预留的资源;所述第二子时频资源包括第二发送资源所在时域资源上的所有资源,所述第二发送资源为所述用户终端发送第二业务占用和/或预留的资源,所述第二业务为除所述第一业务之外的其他业务。
  20. 根据权利要求19所述的用户终端,其中,所述第一占用资源上不进行物理直通链路共享信道的参考信号接收功率PSSCH-RSRP的测量。
  21. 根据权利要求15所述的用户终端,其中,所述处理器还用于读取存储器中的程序,执行下列过程:
    若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务;
    或者,
    所述收发机还用于若所述目标时频资源与所述用户终端的第二业务发送的资源在时域上冲段,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
  22. 根据权利要求15所述的用户终端,其中,所述处理器还用于读取存储器中的程序,执行下列过程:
    若已接收到的其他指示同类系统驾驶业务的SA或者data指示的占用和/或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务;
    所述收发机还用于若已接收到的其他指示同类系统驾驶业务的SA或者data指示的占用和/或预留的发送资源与所述用户终端的第二业务发送的资源在时域上交叠,则放弃所述第二业务的发送,所述第二业务为除所述第一业务之外的其他业务。
  23. 根据权利要求15所述的用户终端,其中,所述第一业务的SA用于指示所述第一业务的发送参数;所述发送参数包括以下至少一项:
    SA发送频段指示;
    SA发送载波指示;
    SA发送部分带宽BWP指示;
    SA发送时频资源指示;
    data发送频段指示;
    data发送载波指示;
    data发送部分带宽BWP指示;
    data发送时频资源指示;
    编码调制指示;
    优先级指示。
  24. 根据权利要求23所述的用户终端,其中,所述发送参数还包括:
    在所述SA中的优先级域中,将第一业务的优先级设置为最高优先级;
    或者,在所述SA新增加指示域,用于指示所述SA指示的data为第一业务。
  25. 根据权利要求15所述的用户终端,其中,所述第一业务中的SA和data的复用方式为时分复用TDM和/或频分复用FDM方式。
  26. 一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现权利要求1-11中任一项所述的资源选择方法的步骤。
PCT/CN2018/122010 2018-02-09 2018-12-19 资源选择方法及用户终端 WO2019153901A1 (zh)

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