WO2016078034A1 - 一种传输消息的方法、用户设备、基站和系统 - Google Patents

一种传输消息的方法、用户设备、基站和系统 Download PDF

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Publication number
WO2016078034A1
WO2016078034A1 PCT/CN2014/091638 CN2014091638W WO2016078034A1 WO 2016078034 A1 WO2016078034 A1 WO 2016078034A1 CN 2014091638 W CN2014091638 W CN 2014091638W WO 2016078034 A1 WO2016078034 A1 WO 2016078034A1
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Prior art keywords
resource
user equipment
base station
contention
information
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PCT/CN2014/091638
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English (en)
French (fr)
Inventor
赵振山
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华为技术有限公司
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Priority to PCT/CN2014/091638 priority Critical patent/WO2016078034A1/zh
Priority to EP14906312.5A priority patent/EP3214880B1/en
Priority to JP2017526919A priority patent/JP2017535206A/ja
Priority to CN201480080007.7A priority patent/CN106465361B/zh
Publication of WO2016078034A1 publication Critical patent/WO2016078034A1/zh
Priority to US15/599,223 priority patent/US10334491B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/04Reselecting a cell layer in multi-layered cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0077Transmission or use of information for re-establishing the radio link of access information of target access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements
    • H04W36/0088Scheduling hand-off measurements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/02Hybrid access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a user equipment, a base station, and a system for transmitting a message.
  • the PSM can be understood as a "heartbeat package" of the vehicle, including information such as the position, speed, state, and the like of the vehicle, and is broadcast to the surrounding vehicles at a specific frequency by a single hop, and the frequency can be, for example, 10 Hz.
  • the frequency can be, for example, 10 Hz.
  • the Institution of Electronic and Electrical Engineering (IEEE) 802.11p standard (also known as WAVE, Wireless Access in the Vehicular Environment) is a communication protocol extended by the IEEE 802.11 standard, mainly used for in-vehicle electronic wireless communication.
  • the IEEE 802.11p standard is essentially an extension of IEEE 802.11 that is compatible with Intelligent Transportation Systems (ITS) applications, including data exchange between vehicles traveling at high speeds and between vehicles and ITS roadside infrastructure.
  • ITS Intelligent Transportation Systems
  • the IEEE 802.11p standard has the following advantages: easy deployment, low cost, and mature technology, suitable for transmission between vehicles and vehicles.
  • cellular communication adopts technologies such as 2G/3G/4G, and the Long Term Evolution (LTE) technology adopted in the 4G system has the advantages of high rate, low delay, large coverage, and support for high-speed mobile terminals.
  • Vehicle-to-vehicle communication in a cellular network can make full use of a central scheduler, such as an eNodeB (eNB), to dynamically schedule transmission resources, thereby reducing the probability of communication collisions and solving the problem of uncontrollable delay.
  • eNodeB eNodeB
  • the basic process is as shown in FIG. 1, firstly by detecting the primary synchronization signal/Secondary Synchronization signal (Primary Synchronization Signal/Secondary Synchronization).
  • PSS/SSS Primary Synchronization Signal/Secondary Synchronization
  • MIB/SIB Master Information Block/System Information Block
  • the UE After the configuration information is sent, the UE initiates an uplink random access procedure, performs uplink synchronization, and obtains uplink resource allocation information by sending a Scheduling Request/Buffer Status Report (SR/BSR), and finally performs the allocation on the allocated resources. data transmission.
  • SR/BSR Scheduling Request/Buffer Status Report
  • the UE will initiate an uplink random access procedure, which will result in a large delay.
  • the delay is, for example, about 50 to 100 ms.
  • the SR/BSR transmission process also causes additional delay. Therefore, the initial transmission process in the LTE system cannot meet the delay requirement in the car network system.
  • cell handover occurs.
  • the signaling process of the cell handover is as shown in FIG. 2, and the handover process is:
  • TA Timing Advance
  • the source eNB configures the UE to perform physical layer measurement according to the roaming and access restriction information of the UE;
  • the source eNB initiates a handover request to the target eNB, and transmits information required for the handover to the target eNB;
  • the target eNB determines whether to allow the UE to perform handover according to the received quality of service information
  • the target eNB sends handover confirmation information to the source eNB to permit the UE to perform cell handover;
  • the source eNB sends a radio resource control connection reconfiguration message RRCConnectionReconfiguration to the UE;
  • the source eNB sends a sequence number state transition (SN STATUS TRANSFER) message to the target eNB;
  • the UE After receiving the RRC connection connection configuration message RRCConnectionReconfiguration, the UE synchronizes with the target eNB, and accesses the target cell by initiating a random access procedure RACH;
  • the target eNB transmits timing advance information and resource allocation information to the UE;
  • the UE After the UE successfully accesses the target cell, the UE sends a radio resource control connection reconfiguration complete message RRCConnectionReconfigurationComplete and the BSR to the target cell to indicate that the UE completes the handover process, and the target eNB may transmit data to the UE.
  • RRCConnectionReconfigurationComplete radio resource control connection reconfiguration complete message
  • the target eNB may transmit data to the UE.
  • the target eNB transmits a path switching request PATH to the mobility management entity MME, and the SWITCH REQUEST message informs the UE that the cell has been replaced;
  • MME transmits a change bearer request message MODIFY BEARER REQUEST to the Serving Gateway
  • the 14Serving Gateway switches the downlink data path to the target cell side
  • 16MME responds to the path exchange request message PATH SWITCH REQUEST by transmitting a path exchange request acknowledgement message PATH SWITCH REQUEST ACKNOWLEDGE;
  • the target eNB After receiving the PDCCH SWITCH REQUEST ACKNOWLEDGE sent by the MME, the target eNB notifies the UE that the handover has succeeded by transmitting a UE CONTEXT RELEASE message to the source eNB, and triggers the source eNB to release the resource;
  • the 18 source eNB After receiving the UE CONTEXT RELEASE message, the 18 source eNB releases the UE context-related radio and control plane resources.
  • the UE can obtain the resource allocation information of the target cell only after accessing the target cell by initiating the random access procedure, and the process may result in a large delay; the foregoing handover process includes A large number of signaling overheads include signaling interaction between the UE and the source and target eNBs, and signaling interaction between the source eNB and the target eNB.
  • a large number of signaling overheads include signaling interaction between the UE and the source and target eNBs, and signaling interaction between the source eNB and the target eNB.
  • an embodiment of the present invention provides a method for transmitting a message,
  • the user equipment, the base station, and the system solve the technical problem that the delay in the existing cellular network is too long, the delay is too long in the cell handover process, and the information overhead is excessive.
  • the embodiment of the present invention provides a method for transmitting a message, where: a first user equipment receives information of a contention resource from a base station of a cellular network, where the contention resource is a transmission resource acquired in an autonomous competition manner; The user equipment contends for the transmission resource within the time window corresponding to the contention resource. If the transmission resource is obtained, the obtained transmission resource is used to transmit the message to the second user equipment.
  • the embodiment of the present invention provides a method for transmitting a message in a cell handover process of a cellular network, which is characterized in that: the first user equipment receives a measurement control signal from a source base station, and after passing through the neighboring area measurement, The source base station reports the measurement report; when the handover is required, the first user equipment receives the information of the contention of the competition resource sent by the target base station, where the contention resource is the transmission resource acquired by the autonomous competition mode; Competing for the transmission resource in the time window corresponding to the contention resource, for example, obtaining the transmission resource, and transmitting the message to the second user equipment by using the obtained transmission resource.
  • an embodiment of the present invention provides a cellular network base station, which includes: a transmitter, configured to send information of a contention resource to a first user equipment, where the contention resource is a transmission acquired in an autonomous competition mode. a resource that is used by the first user equipment to compete for a transmission resource within a time window corresponding to the contention resource and obtained by the first user equipment when the first user equipment obtains the transmission resource The transmission resource transmits a message to the second user equipment.
  • FIG. 5 is a flowchart of a method for transmitting a message in a cell handover process according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • Step 301 The first user equipment receives information of a contention resource from a cellular network base station, where the contention resource is a transmission resource acquired in an autonomous competition manner.
  • Step 302 The first user equipment contends to transmit resources in a time window corresponding to the contention resource. If the transmission resource is obtained, the obtained transmission resource is used to transmit a message to the second user equipment.
  • the information received by the first user equipment from the cellular network base station includes information of the contention resource, and the user equipment in the cell, including the first user equipment, can know which resources in the resource, by using the information of the contention resource, For example, which subframes/slots belong to a contention resource.
  • the first user equipment can independently initiate competition for the transmission resource without waiting for the base station to perform resource allocation. If the competition is successful, the message is transmitted within the time window corresponding to the obtained transmission resource, without being in any case.
  • the base station applies for resources and waits for the base station to schedule allocation of transmission resources, thereby effectively reducing the delay. In this way, the delay of data transmission can be effectively reduced.
  • the access delay of the user equipment can be effectively reduced, and the message can be quickly transmitted to other user equipments.
  • the first user equipment further receives information of a non-contention resource from the base station, where the non-contention resource is a transmission resource allocated by the base station according to the application, for example, the first user equipment passes the Xms time or after K times of competition. After the transmission resource is not obtained, the first user equipment applies for transmission resources to the base station, and transmits a message to the second user equipment by using the transmission resource allocated by the base station, where X is a rational number and K is a positive integer. .
  • the information obtained by the first user equipment from the base station further includes information of the non-contention resource, that is, the first user equipment may also use the non-contention resource to transmit the message, so that the first user equipment does not obtain the content after a predetermined time or a predetermined number of times of competition.
  • the base station may apply for transmission resources and transmit the message using the transmission resources allocated by the base station. Therefore, even if the first user device does not The method obtains available transmission resources through autonomous competition, and the first user equipment can still transmit messages, thereby ensuring communication quality and user equipment security.
  • the first user equipment contends for the transmission resource in the time window corresponding to the contention resource, in order to avoid contention conflict, the first user equipment competes in a time window corresponding to the contention resource.
  • the transmission resource specifically includes: the first user intercepts the transmission resource in an idle state, and after the Yms time, the transmission resource is still in an idle state, and the first user equipment transmits the second user equipment on the transmission resource. a message, wherein the Y is a rational number.
  • the information of the contention resource or the information of the non-contention resource is carried in any one of a main information block (MIB), a system information block (SIB) or a radio resource control (RRC) signaling.
  • MIB main information block
  • SIB system information block
  • RRC radio resource control
  • information of a contention resource or information of a non-competition resource may be transmitted in multiple manners, for example, information of a contention resource or information of a non-contention resource may be in an existing LTE MIB, SIB, or RRC.
  • One or more of the transmissions may also be transmitted by adding a new MIB, SIB or RRC message or signaling type.
  • the resource obtained by the first user equipment by applying to the base station includes the contention resource and/or the non-competition resource.
  • the base station when the cellular network base station allocates transmission resources to the first user equipment, the base station can not only schedule non-competitive resources, but also can schedule all available competing resources to maximize the utilization of transmission resources. .
  • the Xms time is determined by the base station or for a predefined time.
  • the predetermined time Xms may be specified by the base station in the information of the competition resource or other information; the predefined time is a predetermined time, for example, may be a predefined time by a specification or the like.
  • the K times of competition is determined by the base station or for a predefined number of times.
  • the number of times of competition K may be specified by the base station in the information of the competition resource or other information; or the number of times of competition K is a predefined number of times, for example, may be a predetermined number of times of competition by a specification or the like.
  • the information of the contention resource or the information of the non-contention resource includes information on the number and/or location of the transmission resource in the radio frame in which it is located.
  • the information of the contention resource or the information of the non-contention resource may include information of the number of the contention resource and the non-contention resource, for example, the number of the subframe/time slot occupied by the contention resource and the non-contention resource in a single radio frame.
  • a preferred representation method is to use a bit bitmap to represent the competition. The distribution of the contending resources and the non-competitive resources is as shown in FIG.
  • 0111 indicates that the number of non-competitive resources is sufficient, that is, the position and number of non-competitive resources and competing resources can be expressed by using less bits of information, but this method needs to agree or otherwise specify bit information to express non-competitive resources and competing resources. Positional relationship.
  • the expression of the competitive resource and the non-competitive resource may be different, and the competitive resource may also be located in front of the non-competitive resource, or the competitive resource and the non-competitive resource may be cross-distributed.
  • the method of this embodiment may be performed by an in-vehicle user equipment or by a general user equipment.
  • FIG. 5 is a flowchart of a method for transmitting a message in a cell handover process of a cellular network according to this embodiment, where the method includes the following steps:
  • the first user equipment receives information of a contention resource that is sent by the target base station, where the contention resource is a transmission resource that is obtained by using autonomous competition.
  • the first user equipment contends to transmit resources in a time window corresponding to the contention resource. If the transmission resource is obtained, the obtained transmission resource is used to transmit a message to the second user equipment.
  • the information received by the first user equipment from the target network base station of the cellular network includes information of the contention of the resource
  • the user equipment in the cell includes the first user equipment, which can know which resources in the resource, for example, by competing for resources. Which subframes/time slots are competing resources.
  • the first user equipment needs to send a message during the cell handover process, the first user equipment first initiates competition for the contention resources in the time window corresponding to the contention resource, and if the competition successfully obtains the transmission resource, the used transmission resource is used. The message is transmitted without first needing to apply to the target base station and wait for the resource to be allocated in any case, thereby effectively reducing the delay.
  • the delay of message transmission can be effectively reduced when the application
  • the access delay of the user equipment can be effectively reduced, and the periodic state information can be quickly sent to other user equipments such as the vehicle.
  • the base station only assists the user equipment to perform communication between the user equipments by means of resource scheduling. Therefore, when cell handover occurs, information exchange between the source base station and the target base station is not required, and signaling overhead is reduced.
  • the first user equipment further receives information of a non-contention resource from the target base station, where the non-contention resource is a transmission resource allocated by the target base station according to an application, eg, the first user equipment passes Xms
  • the first user equipment applies for a transmission resource to the target base station, and transmits a message to the second user equipment by using the transmission resource allocated by the target base station, where the transmission resource is not obtained after the time of the K-time competition.
  • X is a rational number and K is a positive integer.
  • the information of the contention resource or the information of the non-contention resource is carried in any one of a main information block (MIB), a system information block (SIB) or a radio resource control (RRC) signaling.
  • MIB main information block
  • SIB system information block
  • RRC radio resource control
  • information of a contention resource or information of a non-competition resource may be transmitted in multiple manners, for example, information of a contention resource or information of a non-contention resource may be in an existing LTE MIB, SIB, or RRC.
  • One or more of the transmissions may also be transmitted by adding a new MIB, SIB or RRC message or signaling type.
  • the resource obtained by the first user equipment by applying to the target base station includes the contention resource and/or the non-competition resource.
  • the cellular network base station is in the first When a user equipment allocates transmission resources, the base station can not only schedule non-competitive resources, but also can schedule all available competing resources to maximize the utilization of transmission resources.
  • 0111 indicates that the number of non-competitive resources is sufficient, that is, the position and number of non-competitive resources and competing resources can be expressed by using less bits of information, but this method needs to agree or otherwise specify bit information to express non-competitive resources and competing resources. Positional relationship.
  • the expression of the competitive resource and the non-competitive resource may be different, and the competitive resource may also be located in front of the non-competitive resource, or the competitive resource and the non-competitive resource may be cross-distributed.
  • This embodiment provides a resource configuration method, where the method includes the following steps:
  • the cellular network base station sends, to the first user equipment, information of a contention resource, which is a transmission resource that is obtained in an autonomously competitive manner, and the contention resource is adapted to cause the first user equipment to be in a time window corresponding to the contention resource.
  • the first user equipment transmits the message to the second user equipment by using the obtained transmission resource when the first user equipment obtains the transmission resource.
  • the cellular network base station sends the information of the contention resource to the first user equipment, and the user equipment in the cell, including the first user equipment, can know which resources in the resource, such as which subframes/time slots, by using the information of the contention resources. Belonging to competitive resources. For a contention resource, the first user equipment may contend for the transmission resource within the time window corresponding to the contention resource without waiting for the base station to perform resource allocation. If the competition is successful, the obtained transmission resource is used to transmit the message without first in any case The base station applies for resources and waits for the base station to schedule allocation of transmission resources, thereby effectively reducing the delay. In this way, the delay of data transmission can be effectively reduced.
  • the access delay of the user equipment can be effectively reduced, and information can be quickly transmitted to other user equipments.
  • the base station when applied to handover between cells, the base station only assists the user equipment to perform communication between the user equipments through resource scheduling, etc., therefore, when cell handover occurs, information interaction between the source base station and the target base station is not required. Reduced signaling overhead.
  • the base station further sends information of a non-contention resource to the first user equipment, where the non-contention resource is a transmission resource allocated by the target base station according to an application, eg, the first user equipment passes the Xms time.
  • the first user equipment applies for transmission resources to the base station, and transmits a message to the second user equipment by using the transmission resource allocated by the base station, where X is a rational number.
  • K is a positive integer.
  • the information sent by the base station to the first user equipment further includes the information of the non-competitive resource, that is, the first user equipment may also use the non-contention resource to transmit the message, so that the first user equipment does not obtain the content after the predetermined time or the predetermined number of times of competition.
  • the base station may apply for transmission resources and transmit the message using the transmission resources allocated by the base station. Therefore, in the resource allocation method of the embodiment, even if the first user equipment cannot compete for the available transmission resources, the first user equipment can still transmit the message, thereby ensuring the communication quality and the security of the user equipment.
  • the information of the contention resource or the information of the non-contention resource is defined in any one of a main information block (MIB), a system information block (SIB), or a radio resource control (RRC) signaling.
  • MIB main information block
  • SIB system information block
  • RRC radio resource control
  • information of competing resources or information of non-competitive resources may be transmitted in various ways, for example,
  • the message of the contention resource or the information of the non-contention resource may be transmitted in one or more of the existing LTE MIB, SIB or RRC, or may be added by adding a new MIB, SIB or RRC message or signaling type. transmission.
  • the Xms time is determined by the base station or for a predefined time.
  • the predetermined time Xms may be specified by the base station in the information of the competition resource or other information; the predefined time is a predetermined time, for example, may be a predefined time by a specification or the like.
  • the K times of competition is determined by the base station or for a predefined number of times.
  • the number of times of competition K may be specified by the base station in the information of the competition resource or other information; or the number of times of competition K is a predefined number of times, for example, may be a predetermined number of times of competition by a specification or the like.
  • the 1-7th subframe/slot is a non-contention resource
  • the 8-10th subframe is a contention resource.
  • the subframe/slot is a non-contention resource
  • 0 indicates the subframe.
  • the time slot is a non-competitive resource
  • the corresponding bit information corresponding to the configuration information is 1111111000.
  • the front of the entire frame represents a non-competitive resource
  • the latter represents a contention resource. If the size of the non-competitive resource is N, which is also the non-competitive resource shown in FIG. 4, the bit 0111 is used.
  • the user equipment in this embodiment may be an in-vehicle user equipment or a general user equipment.
  • FIG. 6 is a structural diagram of a first user equipment according to this embodiment.
  • the user equipment includes:
  • a receiver 601 configured to receive, from a cellular network base station, information about a contention resource, where the contention resource is a transmission resource acquired in an autonomous competition manner;
  • the processor 602 is configured to compete for the transmission resource in a time window corresponding to the contention resource according to the information of the contention resource received by the receiver;
  • the transmission resource When the transmission resource is obtained, the transmission resource may be applied to the base station, and the transmission resource allocated by the base station is used to transmit the message. Therefore, Even if the processor of the first user equipment cannot compete for available transmission resources, the first user equipment can still transmit messages, thereby ensuring communication quality and security of the user equipment.
  • the information of the contention resource or the information of the non-contention resource is carried in any one of a main information block, a system information block, or a radio resource control signaling.
  • the Xms time is determined by the base station or for a predefined time.
  • the predetermined time Xms may be specified by the base station in the information of the competition resource or other information; the predefined time is a predetermined time, for example, may be a predefined time by a specification or the like.
  • the information of the contention resource or the information of the non-contention resource includes information of the number and/or location of the contention resource and the non-contention resource in the radio frame in which the non-contention resource is located.
  • the information of the contention resource or the information of the non-competition resource may include information about the number of the contention resource and the non-contention resource, for example, the content of the subframe/time slot occupied by the contention resource and the non-contention resource in a single radio frame.
  • the number, or information including the positional distribution of the contention and the non-competitive resources in the frame structure is to use a bit bitmap to represent the distribution of the contention resources and the non-competitive resources, as shown in FIG.
  • the subframe/slot is a non-contention resource, and 0 indicates that the subframe/slot is a non-competitive resource.
  • the 1st-7 subframe/slot is a non-competitive resource
  • the 8-10th sub- If the frame is a contention resource, the bit information corresponding to the corresponding configuration information should be 1111111000.
  • bit 0111 indicates the number of non-competitive resources, that is, to use less bits of information to express the location and number of non-competitive resources and competing resources, but this method It is necessary to stipulate or otherwise specify bit information to express the sequential positional relationship between non-competitive resources and competing resources.
  • the expression of the competitive resource and the non-competitive resource may be different, and the competitive resource may also be located in front of the non-competitive resource, or the competitive resource and the non-competitive resource may be cross-distributed.
  • the user equipment in this embodiment may be an in-vehicle user equipment or a general user equipment.
  • This embodiment provides a cellular network base station, where the base station includes:
  • a transmitter configured to send, to the first user equipment, information of a contention resource, where the contention resource is a transmission resource that is acquired in an autonomously competitive manner, and the contention resource causes the first user equipment to be in a time window corresponding to the contention resource.
  • the first user equipment transmits the message to the second user equipment by using the obtained transmission resource when the first user equipment obtains the transmission resource.
  • the transmitter sends the information of the contention resource, and the first user equipment can know which resources in the resource, for example, which subframes/time slots belong to the contention resources, by competing for the resource information.
  • the first user equipment needs to transmit a message during the initial access or cell handover process, the first user equipment first contends for the transmission resource within the time window corresponding to the contention resource, and if the competition is successful, the obtained transmission resource is used to transmit the message, and There is no need to first request and wait for resources to be allocated to the base station in any case, thereby effectively reducing the delay. In this way, the delay of data transmission can be effectively reduced.
  • the base station When the base station is applied to the initial access of the user equipment, the access delay of the user equipment can be effectively reduced, and information can be quickly sent to other user equipments.
  • the base station when applied to handover between cells, the base station only assists the user equipment to perform communication between the user equipments through resource scheduling, etc., therefore, when cell handover occurs, information interaction between the source base station and the target base station is not required. Reduced signaling overhead.
  • the base station further includes a receiver and a processor; the transmitter is further configured to send information of the non-contention resource to the first user equipment, where the non-contention resource is a transmission resource allocated by the base station according to the application.
  • the receiver is configured to compete when the first user equipment passes Xms time or after K times Receiving, by the first user equipment, a request for allocating a transmission resource to the base station when the transmission resource is not obtained;
  • the processor is configured to allocate a transmission resource to the first user equipment according to the application, so that The first user equipment transmits a message to the second user equipment, where X is a rational number and K is a positive integer.
  • the first user equipment may also use the non-contention resource to transmit the message, so that the first user equipment does not after the predetermined time or the predetermined number of times of competition.
  • the transmission resource may be applied to the base station, and the transmission resource allocated by the base station is used to transmit the message. Therefore, in the base station of this embodiment, even if the first user equipment cannot compete for the available transmission resources, the first user equipment can still transmit the message, thereby ensuring the communication quality and the security of the user equipment.
  • the information of the contention resource or the information of the non-contention resource is carried in any one of a main information block (MIB), a system information block (SIB) or a radio resource control (RRC) signaling.
  • MIB main information block
  • SIB system information block
  • RRC radio resource control
  • the information of the contention resource or the information of the non-competition resource may be transmitted in multiple manners, for example, the information of the contention resource or the information of the non-competition resource may be in the existing LTE MIB, SIB.
  • the transmission in one or more of the RRCs may also be performed by adding a new MIB, SIB or RRC message or signaling type.
  • the transmission resource allocated by the processor to the first user equipment comprises the contention resource and/or the non-competition resource.
  • the processor can not only schedule the non-competitive resources, but also can schedule all available competing resources to maximize the utilization of the transmission resources. rate.
  • the Kth competition is determined by the processor or is a predefined number of times.
  • the number of times of competition K may be specified by the processor in the information or other information of the competition resource; or the number of times of competition K is a predefined number of times, for example, may be a predetermined number of times of competition by a specification or the like.
  • the information of the contention resource or the information of the non-contention resource includes information of the number and/or location of the contention resource and the non-contention resource in the radio frame in which the non-contention resource is located.
  • the information of the contention resource or the information of the non-competition resource may include information about the number of the contention resource and the non-contention resource, for example, the content of the subframe/time slot occupied by the contention resource and the non-contention resource in a single radio frame. Number, or including competition
  • a preferred representation method is to use a bit bitmap to represent the distribution of the contention resources and the non-contention resources, as shown in FIG.
  • the user equipment in this embodiment may be an in-vehicle user equipment or a general user equipment.
  • the first user equipment includes:
  • a first user equipment receiver 701 configured to receive information of a contention resource from the base station;
  • the contention resource is a transmission resource acquired in an autonomous competition manner;
  • the first user equipment processor 702 is configured to compete for the transmission resource in a time window corresponding to the contention resource according to the information of the contention resources received by the receiver;
  • a first user equipment transmitter 703, configured to: when the processor obtains a transmission resource, use the obtained transmission resource to transmit a message to the second user equipment;
  • the user equipment in the cell including the first user equipment, can know which resources in the resource, such as which subframes/time slots, belong to the contention resources by competing for the resources.
  • the first user equipment can initiate the competition for the competition resources without waiting for the base station to perform the resource allocation. If the competition is successful, the data is sent on the obtained competition resources, and the resources are not required to be applied to the base station in any case, thereby effectively reducing the resources. Delay. In this way, the delay of data transmission can be effectively reduced. When applied to the initial access, the access delay of the user equipment can be effectively reduced, and information can be quickly transmitted to other user equipments.
  • the base station when applied to handover between cells, the base station only assists the user equipment to perform communication between the user equipments through resource scheduling, etc., therefore, when cell handover occurs, information interaction between the source base station and the target base station is not required. Reduced signaling overhead.
  • the first user equipment may also use the non-contention resource to transmit the message, so that after the first user equipment passes the predetermined time or the predetermined number of times of competition, When the transmission resource is not obtained, the transmission resource may be requested from the base station, and the message is transmitted using the transmission resource allocated by the base station. Therefore, in the base station of this embodiment, even if the first user equipment cannot compete for the available transmission resources, the first user equipment can still transmit the message, thereby ensuring the communication quality and the security of the user equipment.
  • the user equipment in this embodiment may be an in-vehicle user equipment or a general user equipment.
  • a method for transmitting a message, a resource configuration method, a method for transmitting a message in a cell handover process, a user equipment, a base station, and a communication system in the embodiment of the present invention can be clearly understood by those skilled in the art, and can be used not only in the communication of the vehicle network. It can also be used for communication in any other scenario.
  • the user equipment of the embodiments of the present invention includes, but is not limited to, a vehicle, an in-vehicle user equipment, and a communication device that may be in a moving state at different speeds.

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Abstract

本发明公开了一种传输消息的方法、用户设备、基站和通信系统。本发明实施例的一种传输消息的方法包括:第一用户设备从蜂窝网络基站接收竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源,如获得传输资源,则使用所获得的传输资源向第二用户设备传输消息。

Description

一种传输消息的方法、用户设备、基站和系统 技术领域
本发明涉及通信技术领域,尤其涉及一种传输消息的方法、用户设备、基站和系统。
背景技术
近年来车联网越来越受到人们的关注,车联网通过车车(Vehicle to Vehicle,V2V)通信或者车与路边单元(Roadside Unit,RSU)之间的通信从而提高道路交通的安全性、可靠性,提升交通通行效率。在车联网中,为保证车辆安全行驶,车车之间需要周期性的交互状态信息,这些信息在不同的标准或规范中有不同的称谓,例如基本安全消息(Basic Safety Message,BSM),协作感知消息(Cooperative-Awareness Message,CAM),这里统称为周期状态消息(Periodic Status Message,PSM)。PSM可以理解为车辆的”心跳包”,包含车的位置、速度、状态等信息,通过单跳的方式以特定频率广播给周围车辆,频率例如可以为10Hz。鉴于车联网中的用户设备(User Equipment)移动速度非常快,从而使得PSM对业务的延迟具有很高的要求。
美国电子电气工程协会(Institution of Electronic and Electrical Engineering,IEEE)802.11p标准(又称WAVE,Wireless Access in the Vehicular Environment)是一个由IEEE 802.11标准扩充的通信协议,主要用于车载电子无线通信。IEEE 802.11p标准本质上是IEEE 802.11的扩充延伸,符合智能交通系统(Intelligent Transportation Systems,ITS)的相关应用,包括高速行驶的车辆之间以及车辆与ITS路边基础设施之间的数据交换。IEEE 802.11p标准具有如下的优点:容易部署、成本低、技术成熟,适用于车车之间的传输。但是其本身也有相应的缺点:当车辆数目很多时,容易发生资源冲突,从而导致系统性能变差、延迟不可控、服务质量(QoS:quality of service)不能保证、传输距离有限、部署大量 路边单元(RSU:Roadside Unit)成本过高。这些缺点导致IEEE 802.11p标准无法解决车联网中PSM对时延(delay)具有高要求的问题。
上述问题激发了人们对于利用现有的蜂窝网络来协助进行车车通信的研究。目前蜂窝通信采用2G/3G/4G等技术,在4G系统中采用的长期演进(Long Term Evolution,LTE)技术具有高速率、低延迟、大覆盖范围以及支持高速移动终端等优点。在蜂窝网络中进行车车通信,可以充分利用中央调度器,如演进节点(eNode B,eNB)来进行传输资源的动态调度,从而降低通信冲突的概率,并且解决时延不可控的问题。
在现有的LTE系统中,如果UE有数据要进行传输,在进行初始传输过程中,基本的流程如图1所示,首先要通过检测主同步信号/辅同步信号(Primary Synchronization Signal/Secondary Synchronization Signal,PSS/SSS)进行下行同步,并且获得该小区的身份识别(identification,ID),然后通过检测主信息块/系统信息块(Master Information Block/System Information Block,MIB/SIB)消息获得小区的配置信息,随后UE发起上行随机接入过程,进行上行同步,通过发送调度请求/缓冲区状态报告(Scheduling Request/Buffer Status Report,SR/BSR)获得上行资源分配信息,最终在分配的资源上进行数据传输。在上述初始传输过程中,由于UE要发起上行随机接入过程,这将导致很大的时延,时延例如在50~100ms左右,另外,SR/BSR的传输过程也会导致额外的时延,使得LTE系统中的初始传输过程不能满足车联网系统中对时延的要求。
另外,在现有的LTE系统中,如果UE是连接状态,并且从一个小区移动到另外一个小区时,会发生小区切换,小区切换的信令流程如图2所示,切换过程为:
0在连接建立时或者是上一次更新定时提前(Timing Advance,TA)时,向源eNB提供关于UE漫游和接入限制的上下文;
1源eNB根据UE的漫游和接入限制信息配置UE进行物理层测量;
2UE向源eNB上报测量报告;
3源eNB根据测量上报信息和无线资源管理(Radio Resource Management,RRM)信息决定该UE是否需要进行小区切换;
4源eNB向目标eNB发起切换请求,并且向目标eNB传输切换所需的信息;
5目标eNB根据接收到的服务质量信息来决定是否允许UE进行切换;
6目标eNB向源eNB发送切换确认信息准许UE进行小区切换;
7源eNB向UE发送无线资源控制连接重配置消息RRCConnectionReconfiguration;
8源eNB向目标eNB发送序列号状态转移(SN STATUS TRANSFER)消息;
9UE在接收到无线资源控制连接配置消息RRCConnectionReconfiguration后,与目标eNB进行同步,并且通过发起随机接入流程RACH接入到目标小区;
10目标eNB向UE传输定时提前信息以及资源分配信息;
11当UE成功接入到目标小区后,UE向目标小区发送无线资源控制连接重配置完成消息RRCConnectionReconfigurationComplete以及BSR从而指示该UE完成切换过程,目标eNB可以向UE传输数据;
12目标eNB向移动管理实体MME发射路径交换请求PATH SWITCH REQUEST消息通知该UE已经更换了小区;
13MME向服务网关(Serving Gateway)发射改变承载请求消息MODIFY BEARER REQUEST;
14Serving Gateway将下行数据路径切换到目标小区侧;
15Serving Gateway向移动管理实体MME发射改变承载响应MODIFY BEARER RESPONSE;
16MME通过发射路径交换请求确认消息PATH SWITCH REQUEST ACKNOWLEDGE来响应路径交换请求消息PATH SWITCH REQUEST;
17目标eNB在接收到MME发射的发射路径交换请求确认消息PATH SWITCH REQUEST ACKNOWLEDGE后,通过向源eNB发射UE上下文释放(UE CONTEXT RELEASE)消息通知UE的切换已经成功,并且触发源eNB释放资源;
18源eNB在接收到UE CONTEXT RELEASE消息后,释放UE上下文相关的无线和控制面资源。
在小区切换过程中,UE只有通过发起随机接入过程接入到目标小区后,获得目标小区的资源分配信息才能进行业务传输,这个过程会导致很大的时延;上述切换过程中,包含了大量的信令开销,包括UE与源、目标eNB的信令交互,以及源eNB、目标eNB之间的信令交互等。当在车联网系统中使用上述切换过程进行小区切换时,由于车辆的高速移动特性,会发射频繁的小区切换,从而导致系统存在较大的切换时延以及较高的信令开销的问题。
发明内容
为解决现有技术中存在的问题,本发明的实施例提供一种传输消息的方法、 用户设备、基站和系统,以解决现有的蜂窝网络中时延过长以及在小区切换过程中时延过长、信息开销过大的技术问题。
一方面,本发明实施例提供了一种传输消息的方法,包括:第一用户设备从蜂窝网络基站接收竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源,如获得传输资源,则使用所获得的传输资源向第二用户设备传输消息。
另一方面,本发明实施例提供了一种蜂窝网络的小区切换过程中传输消息的方法,其特征在于,包括:第一用户设备从源基站接收测量控制信号,经过邻区测量后,向所述源基站上报测量报告;当需要切换时,所述第一用户设备接受目标基站发送的竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源,如获得传输资源,则使用所获得的传输资源向第二用户设备传输消息。
另一方面,本发明实施例提供了一种资源配置方法,其特征在于,包括:蜂窝网络基站向第一用户设备发送竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源,所述竞争资源适于使得所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源并当所述第一用户设备获得所述传输资源时所述第一用户设备使用所获得的传输资源向第二用户设备传输消息。
另一方面,本发明实施例提供了第一用户设备,包括:接收器,用于从蜂窝网络基站接收竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;处理器,用于根据所述接收器接收的竞争资源的信息在所述竞争资源对应的时间窗内竞争传输资源;发射器,用于在所述处理器获得传输资源时,使用所获得的传输资源向第二用户设备传输消息。
另一方面,本发明实施例提供了一种蜂窝网络基站,其特征在于,包括:发射器,用于向第一用户设备发送竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源,所述竞争资源使得所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源并当所述第一用户设备获得所述传输资源时所述第一用户设备使用所获得的传输资源向第二用户设备传输消息。
另一方面,本发明实施例提供了一种通信系统,其特征在于,包括第一用户设备和蜂窝网络基站;所述第一用户设备包括:第一用户设备接收器,用于从所述基站接收竞争资源的信息;所述竞争资源为以自主竞争方式获取的传输 资源;第一用户设备处理器,用于根据所述接收器接收的竞争资源的信息在所述竞争资源对应的时间窗内竞争传输资源;第一用户设备发射器,用于在所述处理器获得传输资源时,使用所获得的传输资源向第二用户设备传输消息;所述基站包括:基站发射器,用于向第一用户设备发送所述竞争资源的信息。
本发明实施例提供了发送消息的方法、用户设备、基站和通信系统的技术方案。在本发明的实施例中,蜂窝网络基站发送竞争资源的信息,用户设备在接收到竞争资源的信息后即可在以自主竞争方式获取的传输资源所对应的时间窗内竞争传输资源,并使用获得的传输资源向其他用户设备传输消息,从而使得用户设备无需在任何情况下都需要首先向基站申请资源并等待基站分配资源后才能传输消息,而是通过自主竞争获得基站预留的竞争资源并传输消息,大大降低了时延。当应用于小区切换时,也无需在所有情况下都等待目标基站分配资源后才传输数据,通过用户设备自主竞争目标基站预留的竞争资源并传输消息,有效降低时延,缩减信令开销。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术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发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为UE进行初始传输时的基本流程示意图;
图2为UE在进行小区切换时的基本流程示意图;
图3为本发明一个实施例提供的一种传输消息的方法流程图;
图4为本发明一个实施例中帧结构中的资源分布示意图;
图5为本发明一个实施例提供的一种小区切换过程中传输消息的方法流程图;
图6为本发明一个实施例提供的一种用户设备的结构示意图;
图7为本发明一个实施例提供的一种通信系统的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,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,都属于本发明保护的范围。
实施例1
图3是本实施例提供的一种传输消息的方法流程图,该方法包括以下步骤:
步骤301,第一用户设备从蜂窝网络基站接收竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;
步骤302,所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源,如获得传输资源,则使用所获得的传输资源向第二用户设备传输消息。
在本实施例中,第一用户设备从蜂窝网络基站中接收的信息中包括竞争资源的信息,小区内的用户设备,包括第一用户设备通过该竞争资源的信息就能知道资源中哪些资源、例如哪些子帧/时隙属于竞争资源。对于竞争资源,第一用户设备无需等待基站进行资源分配即可自主发起对传输资源的竞争,若竞争成功,则使用获得的传输资源所对应的时间窗内传输消息,而无需在任何情况下都首先向基站申请资源并等待基站调度分配传输资源,从而有效降低延时。通过这样的方式,能够有效降低数据发送的时延,当应用于用户设备的初始接入时,能够有效减少用户设备的接入时延,快速地向其他用户设备传输消息。
优选地,所述第一用户设备从基站还接收非竞争资源的信息,所述非竞争资源为由基站依申请而分配的传输资源,如所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源,则所述第一用户设备向所述基站申请传输资源,并使用所述基站分配的传输资源向所述第二用户设备传输消息,其中,X为有理数,K为正整数。由于第一用户设备从基站获取的信息还包括非竞争资源的信息,即第一用户设备还可以使用非竞争资源传输消息,从而当第一用户设备经过预定时间或预定次数的竞争后仍未获得传输资源时,可以向基站申请传输资源,并使用基站分配的传输资源传输消息。因此,即使第一用户设备无 法通过自主竞争的方式获得可供使用的传输资源,第一用户设备仍可以传输消息,从而确保了通信质量和用户设备的安全。
优选地,所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源时,为了避免竞争冲突,进行以下步骤:所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源具体包括:所述第一用户监听传输资源处于空闲状态,且经过Yms时间,所述传输资源仍然处于空闲状态,则所述第一用户设备在所述传输资源上向第二用户设备传输消息,其中,所述Y为有理数。
优选地,所述竞争资源的信息或者非竞争资源的信息携带于主信息块(MIB)、系统信息块(SIB)或无线资源控制(RRC)信令中任意一种中。在具体的实施过程中,竞争资源的信息或者非竞争资源的信息可以通过多种方式进行传输,例如竞争资源的信息或者非竞争资源的信息既可以在现有LTE的MIB、SIB或RRC中的一种或多种中传输,也可以通过增加新的MIB、SIB或RRC消息或信令类型来进行传输。
优选地,所述第一用户设备通过向所述基站申请而获得的资源包括所述竞争资源和/或所述非竞争资源。根据第一用户设备的申请,蜂窝网络基站在向第一用户设备分配传输资源时,基站不仅能够调度非竞争资源,而且还能够调度所有可用的竞争资源,以最大限度地提高传输资源的利用率。
优选地,所述Xms时间由所述基站确定或者为预定义的时间。具体地,预定时间Xms可以由基站在竞争资源的信息或其他信息中指定;预定义的时间为预先确定的时间,例如可以是通过规范等预先定义好的时间。
优选地,所述K次竞争由所述基站确定或者为预定义的次数。具体地,竞争次数K可以由基站在竞争资源的信息或其他信息中指定;或者,竞争次数K是预定义的次数,例如可以是通过规范等预先定义好的竞争次数。
优选地,所述竞争资源的信息或非竞争资源的信息包括传输资源在其所在的无线帧中的数量和/或位置的信息。具体地,竞争资源的信息或非竞争资源的信息中可以包括竞争资源和非竞争资源的数量的信息,例如竞争资源和非竞争资源各自在单个无线帧中所占子帧/时隙的个数,或者包括竞争资源和非竞争资源在无线帧结构的位置分布的信息,一种优选的表示方法为用比特位图表示竞 争资源和非竞争资源的分布,如图4所示,1表示该子帧/时隙为非竞争资源,0表示该子帧/时隙为非竞争资源,从图4中可以看出,第1-7个子帧/时隙为非竞争资源,第8-10个子帧为竞争资源,那么相应的配置信息对应的比特信息应为1111111000。另一种优选的表示方法中,例如可以约定整个无线帧的前面表示非竞争资源,后面表示竞争资源,若非竞争资源的大小为N,同样是图4中所示的非竞争资源,则用比特0111表示非竞争资源的数量就足够,即用更少比特的信息就能表达非竞争资源和竞争资源的位置和数量,但这种方法需要约定或者另外指定比特信息表达非竞争资源和竞争资源的先后位置关系。当然,本领域技术人员可以理解的是,竞争资源和非竞争资源的表达方式可以不同,竞争资源也可以位于非竞争资源的前面,或者竞争资源与非竞争资源交叉分布。
本实施例的方法可以由车载用户设备执行,也可以由一般的用户设备执行。
实施例2
图5是本实施例提供的一种蜂窝网络的小区切换过程中传输消息的方法流程图,该方法包括以下步骤:
501,第一用户设备从源基站接收测量控制信号,经过邻区测量后,向所述源基站上报测量报告;
502,当需要切换时,所述第一用户设备接收目标基站发送的竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;
503,所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源,如获得传输资源,则使用所获得的传输资源向第二用户设备传输消息。
在本实施例中,第一用户设备从蜂窝网络目标基站中接收的信息中包括竞争资源的信息,小区中的用户设备包括第一用户设备通过竞争资源的信息就能知道资源中哪些资源,例如哪些子帧/时隙属于竞争资源。当第一用户设备需要在小区切换过程中发送消息时,第一用户设备首先在竞争资源对应的时间窗内发起对竞争资源的竞争,若竞争成功获得传输资源,则使用所获得的传输资源上传输消息,而无需在任何情况下都需要首先向目标基站申请并等待分配资源,从而有效降低延时。通过这样的方式,能够有效降低消息传输的时延,当应用 于用户设备的小区切换时,能够有效减少用户设备的接入时延,快速地向其他用户设备例如车辆发送周期状态信息。另外,基站只是通过资源调度等方式辅助用户设备进行用户设备之间的通信,因此在发生小区切换时,源基站与目标基站之间不需要进行信息交互,降低了信令开销。
优选地,所述第一用户设备从所述目标基站还接收非竞争资源的信息,所述非竞争资源为由所述目标基站依申请而分配的传输资源,如所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源,则所述第一用户设备向所述目标基站申请传输资源,并使用所述目标基站分配的传输资源向所述第二用户设备传输消息,其中,X为有理数,K为正整数。由于第一用户设备从目标基站获取的信息还包括非竞争资源的信息,即第一用户设备还可以使用非竞争资源传输消息,从而当第一用户设备经过预定时间或预定次数的竞争后仍未获得传输资源时,可以向目标基站申请传输资源,并使用目标基站分配的传输资源传输消息。因此,即使第一用户设备无法通过自主竞争的方式获得可供使用的传输资源,第一用户设备仍可以传输消息,从而确保了通信质量和用户设备的安全。
优选地,所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源时,为了避免竞争冲突,进行以下步骤:所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源具体包括:所述第一用户监听传输资源处于空闲状态,且经过Yms时间,所述传输资源仍然处于空闲状态,则所述第一用户设备在所述传输资源上向第二用户设备传输消息,其中,所述Y为有理数。
优选地,所述竞争资源的信息或者非竞争资源的信息携带于主信息块(MIB)、系统信息块(SIB)或无线资源控制(RRC)信令中任意一种中。在具体的实施过程中,竞争资源的信息或者非竞争资源的信息可以通过多种方式进行传输,例如竞争资源的信息或者非竞争资源的信息既可以在现有LTE的MIB、SIB或RRC中的一种或多种中传输,也可以通过增加新的MIB、SIB或RRC消息或信令类型来进行传输。
优选地,所述第一用户设备通过向目标基站申请而获得的资源包括所述竞争资源和/或所述非竞争资源。根据第一用户设备的申请,蜂窝网络基站在向第 一用户设备分配传输资源时,基站不仅能够调度非竞争资源,而且还能够调度所有可用的竞争资源,以最大限度地提高传输资源的利用率。
优选地,所述Xms时间由所述基站确定或者为预定义的时间。具体地,预定时间Xms可以由基站在竞争资源的信息或其他信息中指定;预定义的时间为预先确定的时间,例如可以是通过规范等预先定义好的时间。
优选地,所述K次竞争由所述基站确定或者为预定义的次数。具体地,竞争次数K可以由基站在竞争资源的信息或其他信息中指定;或者,竞争次数K是预定义的次数,例如可以是通过规范等预先定义好的竞争次数。
优选地,所述竞争资源的信息或非竞争资源的信息包括竞争资源和非竞争资源在其所在的无线帧中的数量和/或位置的信息。具体地,所述竞争资源的信息或非竞争资源的信息中可以包括竞争资源和非竞争资源的数量的信息,例如竞争资源和非竞争资源各自在单个无线帧中所占子帧/时隙的个数,或者包括竞争资源和非竞争资源在无线帧结构的位置分布的信息,一种优选的表示方法为用比特位图表示竞争资源和非竞争资源的分布,如图4所示,1表示该子帧/时隙为非竞争资源,0表示该子帧/时隙为非竞争资源,从图4中可以看出,第1-7个子帧/时隙为非竞争资源,第8-10个子帧为竞争资源,那么相应的配置信息对应的比特信息应为1111111000。另一种优选的表示方法中,例如可以约定整个无线帧的前面表示非竞争资源,后面表示竞争资源,若非竞争资源的大小为N,同样是图4中所示的非竞争资源,则用比特0111表示非竞争资源的数量就足够,即用更少比特的信息就能表达非竞争资源和竞争资源的位置和数量,但这种方法需要约定或者另外指定比特信息表达非竞争资源和竞争资源的先后位置关系。当然,本领域技术人员可以理解的是,竞争资源和非竞争资源的表达方式可以不同,竞争资源也可以位于非竞争资源的前面,或者竞争资源与非竞争资源交叉分布。
本实施例的方法可以由车载用户设备执行,也可以由一般的用户设备执行。
实施例3
本实施例提供一种资源配置方法,该方法包括以下步骤:
蜂窝网络基站向第一用户设备发送竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源,所述竞争资源适于使得所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源并当所述第一用户设备获得所述传输资源时所述第一用户设备使用所获得的传输资源向第二用户设备传输消息。
在本实施例中,蜂窝网络基站向第一用户设备发送竞争资源的信息,小区中的用户设备,包括第一用户设备通过竞争资源的信息就能知道资源中哪些资源例如哪些子帧/时隙属于竞争资源。对于竞争资源,第一用户设备无需等待基站进行资源分配即可在竞争资源对应的时间窗内竞争传输资源,若竞争成功,则使用获得的传输资源传输消息,而无需在任何情况下都首先向基站申请资源并等待基站调度分配传输资源,从而有效降低时延。通过这样的方式,能够有效降低数据发送的时延,当应用于用户设备的初始接入时,能够有效减少用户设备的接入时延,快速地向其他用户设备发送信息。另外,当应用于小区之间的切换时,基站只是通过资源调度等方式辅助用户设备进行用户设备之间的通信,因此在发生小区切换时,源基站与目标基站之间不需要进行信息交互,降低了信令开销。
优选地,所述基站还向所述第一用户设备发送非竞争资源的信息,所述非竞争资源为由所述目标基站依申请而分配的传输资源,如所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源,则所述第一用户设备向所述基站申请传输资源,并使用所述基站分配的传输资源向所述第二用户设备传输消息,其中,X为有理数,K为正整数。由于基站向第一用户设备发送的信息还包括非竞争资源的信息,即第一用户设备还可以使用非竞争资源传输消息,从而当第一用户设备经过预定时间或预定次数的竞争后仍未获得传输资源时,可以向基站申请传输资源,并使用基站分配的传输资源传输消息。因此,在本实施例的资源分配方法中,即使第一用户设备无法竞争到可供使用的传输资源,第一用户设备仍可以传输消息,从而确保了通信质量和用户设备的安全。
优选地,竞争资源的信息或非竞争资源的信息定义于主信息块(MIB)、系统信息块(SIB)或无线资源控制(RRC)信令中任意一种中。在具体的实施过程中,竞争资源的信息或非竞争资源的信息可以通过多种方式进行传输,例如 竞争资源的消息或非竞争资源的信息既可以在现有LTE的MIB、SIB或RRC中的一种或多种中传输,也可以通过增加新的MIB、SIB或RRC消息或信令类型来进行传输。
优选地,所述基站分配给所述第一用户设备的资源包括所述竞争资源和/或所述非竞争资源。根据第一用户设备的申请,蜂窝网络基站在向第一用户设备分配传输资源时,基站不仅能够调度非竞争资源,而且还能够调度所有可用的竞争资源,以最大限度地提高传输资源的利用率。
优选地,所述Xms时间由所述基站确定或者为预定义的时间。具体地,预定时间Xms可以由基站在竞争资源的信息或其他信息中指定;预定义的时间为预先确定的时间,例如可以是通过规范等预先定义好的时间。
优选地,所述K次竞争由所述基站确定或者为预定义的次数。具体地,竞争次数K可以由基站在竞争资源的信息或其他信息中指定;或者,竞争次数K是预定义的次数,例如可以是通过规范等预先定义好的竞争次数。
优选地,所述竞争资源的信息或非竞争资源的信息包括竞争资源和非竞争资源在其所在的无线帧中的数量和/或位置的信息。具体地,所述竞争资源的信息或非竞争资源的信息中可以包括竞争资源和非竞争资源的数量的信息,例如竞争资源和非竞争资源各自在单个无线帧中所占子帧/时隙的个数,或者包括竞争资源和非竞争资源在无线帧结构的位置分布的信息,一种优选的表示方法为用比特位图表示竞争资源和非竞争资源的分布,如图4所示,从图4中可以看出,第1-7个子帧/时隙为非竞争资源,第8-10个子帧为竞争资源,如果用1表示该子帧/时隙为非竞争资源,0表示该子帧/时隙为非竞争资源,那么相应的配置信息应对应的比特信息为1111111000。另一种优选的表示方法中,例如可以约定整个帧的前面表示非竞争资源,后面表示竞争资源,若非竞争资源的大小为N,同样是图4中所示的非竞争资源,则用比特0111表示非竞争资源的数量就足够,即用更少比特的信息就能表达非竞争资源和竞争资源的位置和数量,但这种方法需要约定或者另外指定比特信息表达非竞争资源和竞争资源的先后位置关系。当然,本领域技术人员可以理解的是,竞争资源和非竞争资源的表达方式可以不同,竞争资源也可以位于非竞争资源的前面,或者竞争资源与非竞争资源交叉分布。
需要说明的是,本实施例中的用户设备既可以是车载用户设备,也可以是一般的用户设备。
实施例4
图6是本实施例提供的第一用户设备的结构图。该用户设备包括:
接收器601,用于从蜂窝网络基站接收竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;
处理器602,用于根据所述接收器接收的竞争资源的信息在所述竞争资源对应的时间窗内竞争传输资源;
发射器603,用于在所述处理器获得传输资源时,使用所获得的传输资源向第二用户设备传输消息。
在本实施例中,接收器601接收竞争资源的信息,小区里的用户设备,包括第一用户设备通过竞争资源的信息就能知道资源中哪些资源例如哪些子帧/时隙属于竞争资源。当第一用户设备需要在初始接入或小区切换过程中传输消息时,第一用户设备首先在竞争资源对应的时间窗内竞争传输资源,若竞争成功,则使用获得的传输资源传输消息,而无需在任何情况下都需要首先向基站分配申请并等待分配资源,从而有效降低延时。通过使用该用户设备,能够有效降低消息传输的时延,进行初始接入时,能够有效减少用户设备的接入时延,快速地向其他用户设备传输消息。另外,当应用于小区之间的切换时,基站只是通过资源调度等方式辅助用户设备进行用户设备之间的通信,因此在发生小区切换时,源基站与目标基站之间不需要进行信息交互,降低了信令开销。
优选地,所述接收器还用于从所述基站接收非竞争资源的信息,所述非竞争资源为由基站依申请而分配的传输资源;所述处理器还用于当所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源时,向所述基站申请传输资源,其中,X为有理数,K为正整数。由于接收器从基站获取的信息还包括非竞争资源的信息,即第一用户设备还可以使用非竞争资源传输消息,从而当第一用户设备的处理器经过预定时间或预定次数的竞争后仍未获得传输资源时,可以向基站申请传输资源,并使用基站分配的传输资源传输消息。因此, 即使第一用户设备的处理器无法竞争到可供使用的传输资源,第一用户设备仍可以传输消息,从而确保了通信质量和用户设备的安全。
优选地,为了避免竞争冲突,所述处理器用于在所述竞争资源对应的时间窗内竞争传输资源具体包括:所述处理器用于监听传输资源处于空闲状态,且经过Yms时间,所述传输资源仍然处于空闲状态,则通知所述发射器使用所述传输资源向第二用户设备传输消息,其中,所述Y为有理数。
优选地,所述竞争资源的信息或者非竞争资源的信息携带于主信息块、系统信息块或无线资源控制信令中任意一种中。
优选地,所述处理器通过向所述基站申请而获得的资源包括所述竞争资源和/或所述非竞争资源。根据处理器的申请,蜂窝网络基站在向第一用户设备分配传输资源时,基站不仅能够调度非竞争资源,而且还能够调度所有可用的竞争资源,以最大限度地提高传输资源的利用率。
优选地,所述Xms时间由所述基站确定或者为预定义的时间。具体地,预定时间Xms可以由基站在竞争资源的信息或其他信息中指定;预定义的时间为预先确定的时间,例如可以是通过规范等预先定义好的时间。
优选地,所述K次竞争由所述基站确定或者为预定义的次数。具体地,竞争次数K可以由基站在竞争资源的信息或其他信息中指定;或者,竞争次数K是预定义的次数,例如可以是通过规范等预先定义好的竞争次数。
优选地,所述竞争资源的信息或非竞争资源的信息包括竞争资源和非竞争资源在其所在的无线帧中的数量和/或位置的信息。具体地,所述竞争资源的信息或非竞争资源的信息中可以包括竞争资源和非竞争资源的数量的信息,例如竞争资源和非竞争资源各自在单个无线帧中所占子帧/时隙的个数,或者包括竞争资源和非竞争资源在帧结构的位置分布的信息,一种优选的表示方法为用比特位图表示竞争资源和非竞争资源的分布,如图4所示,1表示该子帧/时隙为非竞争资源,0表示该子帧/时隙为非竞争资源,从图4中可以看出,第1-7个子帧/时隙为非竞争资源,第8-10个子帧为竞争资源,那么相应的配置信息对应的比特信息应为1111111000。另一种优选的表示方法中,例如可以约定整个无线帧的前面表示非竞争资源,后面表示竞争资源,若非竞争资源的大小为N,同 样是图4中所示的非竞争资源,则用比特0111表示非竞争资源的数量就足够,即用更少比特的信息就能表达非竞争资源和竞争资源的位置和数量,但这种方法需要约定或者另外指定比特信息表达非竞争资源和竞争资源的先后位置关系。当然,本领域技术人员可以理解的是,竞争资源和非竞争资源的表达方式可以不同,竞争资源也可以位于非竞争资源的前面,或者竞争资源与非竞争资源交叉分布。
需要说明的是,本实施例中的用户设备既可以是车载用户设备,也可以是一般的用户设备。
实施例5
本实施例提供一种蜂窝网络基站,所述基站包括:
发射器,用于向第一用户设备发送竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源,所述竞争资源使得所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源并当所述第一用户设备获得所述传输资源时所述第一用户设备使用所获得的传输资源向第二用户设备传输消息。
在本实施例中,发射器发送竞争资源的信息,第一用户设备通过竞争资源的信息就能知道资源中哪些资源例如哪些子帧/时隙属于竞争资源。当第一用户设备需要在初始接入或小区切换过程中传输消息时,第一用户设备首先在竞争资源对应的时间窗内竞争传输资源,若竞争成功,则使用获得的传输资源传输消息,而无需在任何情况下都需要首先向基站申请并等待分配资源,从而有效降低延时。通过这样的方式,能够有效降低数据发送的时延,当该基站应用于用户设备的初始接入时,能够有效减少用户设备的接入时延,快速地向其他用户设备发送信息。另外,当应用于小区之间的切换时,基站只是通过资源调度等方式辅助用户设备进行用户设备之间的通信,因此在发生小区切换时,源基站与目标基站之间不需要进行信息交互,降低了信令开销。
优选地,所述基站还包括接收器和处理器;所述发射器还用于向所述第一用户设备发送非竞争资源的信息,所述非竞争资源为由基站依申请而分配的传输资源;所述接收器用于当所述第一用户设备经过Xms时间或者经过K次竞争 后未获得传输资源时,接收所述第一用户设备向所述基站提交的请求分配传输资源的申请;所述处理器用于根据所述申请向所述第一用户设备分配传输资源,以使得所述第一用户设备向所述第二用户设备传输消息,其中,X为有理数,K为正整数。由于发射器向第一用户设备发送的信息还包括非竞争资源的信息,即第一用户设备还可以使用非竞争资源传输消息,从而当第一用户设备经过预定时间或预定次数的竞争后仍未获得传输资源时,可以向基站申请传输资源,并使用基站分配的传输资源传输消息。因此,在本实施例的基站中,即使第一用户设备无法竞争到可供使用的传输资源,第一用户设备仍可以传输消息,从而确保了通信质量和用户设备的安全。
优选地,所述竞争资源的信息或者非竞争资源的信息携带于主信息块(MIB)、系统信息块(SIB)或无线资源控制(RRC)信令中任意一种中。。在具体的实施过程中,所述竞争资源的信息或者非竞争资源的信息可以通过多种方式进行传输,例如所述竞争资源的信息或者非竞争资源的信息既可以在现有LTE的MIB、SIB或RRC中的一种或多种中传输,也可以通过增加新的MIB、SIB或RRC消息或信令类型来进行传输。
优选地,所述处理器分配给所述第一用户设备的传输资源包括所述竞争资源和/或所述非竞争资源。根据第一用户设备的申请,蜂窝网络基站在向第一用户设备分配传输资源时,处理器不仅能够调度非竞争资源,而且还能够调度所有可用的竞争资源,以最大限度地提高传输资源的利用率。
优选地,所述Xms时间由所述处理器确定或者为预定义的时间。具体地,预定时间可以由处理器在竞争资源的信息或其他信息中指定;预定时间是预定义的时间,是通过规范等预先定义好的时间。
优选地,所述K次竞争由所述处理器确定或者为预定义的次数。具体地,竞争次数K可以由处理器在竞争资源的信息或其他信息中指定;或者,竞争次数K是预定义的次数,例如可以是通过规范等预先定义好的竞争次数。
优选地,所述竞争资源的信息或非竞争资源的信息包括竞争资源和非竞争资源在其所在的无线帧中的数量和/或位置的信息。具体地,所述竞争资源的信息或非竞争资源的信息中可以包括竞争资源和非竞争资源的数量的信息,例如竞争资源和非竞争资源各自在单个无线帧中所占子帧/时隙的个数,或者包括竞 争资源和非竞争资源在帧结构的位置分布的信息,一种优选的表示方法为用比特位图表示竞争资源和非竞争资源的分布,如图4所示,1表示该子帧/时隙为非竞争资源,0表示该子帧/时隙为非竞争资源,从图4中可以看出,第1-7个子帧/时隙为非竞争资源,第8-10个子帧为竞争资源,那么相应的配置信息对应的比特信息应为1111111000。另一种优选的表示方法中,例如可以约定整个无线帧的前面表示非竞争资源,后面表示竞争资源,若非竞争资源的大小为N,同样是图4中所示的非竞争资源,则用比特0111表示非竞争资源的数量就足够,即用更少比特的信息就能表达非竞争资源和竞争资源的位置和数量,但这种方法需要约定或者另外指定比特信息表达非竞争资源和竞争资源的先后位置关系。当然,本领域技术人员可以理解的是,竞争资源和非竞争资源的表达方式可以不同,竞争资源也可以位于非竞争资源的前面,或者竞争资源与非竞争资源交叉分布。
本实施例中的用户设备既可以是车载用户设备,也可以是一般的用户设备。
实施例6
图7是本实施例提供的一种通信系统的结构图。所述通信系统包括第一用户设备和蜂窝网络基站;
所述第一用户设备包括:
第一用户设备接收器701,用于从所述基站接收竞争资源的信息;所述竞争资源为以自主竞争方式获取的传输资源;
第一用户设备处理器702,用于根据所述接收器接收的竞争资源的信息在所述竞争资源对应的时间窗内竞争传输资源;
第一用户设备发射器703,用于在所述处理器获得传输资源时,使用所获得的传输资源向第二用户设备传输消息;
所述基站包括:
基站发射器704,用于向第一用户设备发送竞争资源的信息。
在本实施例中,小区内的用户设备,包括第一用户设备通过竞争资源的信息就能知道资源中哪些资源例如哪些子帧/时隙属于竞争资源。对于竞争资源, 第一用户设备无需等待基站进行资源分配即可发起对竞争资源的竞争,若竞争成功,则在获得的竞争资源上进行数据发送,而无需在任何情况下都首先向基站申请资源,从而有效降低延时。通过这样的方式,能够有效降低数据发送的时延,当应用于初始接入时,能够有效减少用户设备的接入时延,快速地向其他用户设备发送信息。另外,当应用于小区之间的切换时,基站只是通过资源调度等方式辅助用户设备进行用户设备之间的通信,因此在发生小区切换时,源基站与目标基站之间不需要进行信息交互,降低了信令开销。
优选地,所述基站还包括基站接收器和基站处理器;所述基站发射器还用于向所述第一用户设备发送非竞争资源的信息,所述非竞争资源为由基站依申请而分配的传输资源;所述基站接收器用于当所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源时,接收所述第一用户设备向所述基站提交的请求分配传输资源的申请;所述基站处理器用于根据所述申请向所述第一用户设备分配传输资源,以使得所述第一用户设备向所述第二用户设备传输消息,其中,X为有理数,K为正整数。由于基站发射器向第一用户设备发送的信息还包括非竞争资源的信息,即第一用户设备还可以使用非竞争资源传输消息,从而当第一用户设备经过预定时间或预定次数的竞争后仍未获得传输资源时,可以向基站申请传输资源,并使用基站分配的传输资源传输消息。因此,在本实施例的基站中,即使第一用户设备无法竞争到可供使用的传输资源,第一用户设备仍可以传输消息,从而确保了通信质量和用户设备的安全。
本实施例中的用户设备既可以是车载用户设备,也可以是一般的用户设备。
本领域技术人员可以清楚地了解到本发明实施例中发送消息的方法、资源配置方法、在小区切换过程中发送消息的方法、用户设备、基站和通信系统,不仅可以用于车联网的通信中,还可以用于任何其他场景的通信中。本发明实施例的用户设备包括但不限于车辆、车载用户设备及其可能会以不同速度处于移动状态的通信设备。
本领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件平台的方式来实现。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以软件产品的形式体现出来,该计算机软件产品可以存 储在存储介质中,如ROM/RAM、磁碟、光盘等,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)执行本发明各个实施例或者实施例的某些部分所述的方法。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。

Claims (40)

  1. 一种传输消息的方法,其特征在于,包括:
    第一用户设备从蜂窝网络基站接收竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;
    所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源,如获得传输资源,则使用所获得的传输资源向第二用户设备传输消息。
  2. 根据权利要求1所述的方法,其特征在于,所述第一用户设备从基站还接收非竞争资源的信息,所述非竞争资源为由基站依申请而分配的传输资源,如所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源,则所述第一用户设备向所述基站申请传输资源,并使用所述基站分配的传输资源向所述第二用户设备传输消息,其中,X为有理数,K为正整数。
  3. 根据权利要求1或2所述的方法,其特征在于,所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源具体包括:
    所述第一用户监听传输资源处于空闲状态,且经过Yms时间,所述传输资源仍然处于空闲状态,则所述第一用户设备在所述传输资源上向第二用户设备传输消息,其中,所述Y为有理数。
  4. 根据权利要求1至3任一所述的方法,其特征在于,所述竞争资源的信息或者非竞争资源的信息携带于主信息块、系统信息块或无线资源控制信令中任意一种中。
  5. 根据权利要求1至4任一所述的方法,其特征在于,所述第一用户设备通过向所述基站申请而获得的传输资源包括所述竞争资源和/或所述非竞争资源。
  6. 根据权利要求2至5任一所述的方法,其特征在于,所述Xms时间由所 述基站确定或者为预定义的时间。
  7. 根据权利要求2至6任一所述的方法,其特征在于,所述K次竞争由所述基站确定或者为预定义的次数。
  8. 根据权利要求1至7任一所述的方法,其特征在于,所述竞争资源的信息或非竞争资源的信息包括所述传输资源在其所在的无线帧中的数量和/或位置。
  9. 一种蜂窝网络的小区切换过程中传输消息的方法,其特征在于,包括:
    第一用户设备从源基站接收测量控制信号,经过邻区测量后,向所述源基站上报测量报告;
    当需要切换时,所述第一用户设备接收目标基站发送的竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;
    所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源,如获得传输资源,则使用所获得的传输资源向第二用户设备传输消息。
  10. 根据权利要求9所述的方法,其特征在于,所述第一用户设备从所述目标基站还接收非竞争资源的信息,所述非竞争资源为由所述目标基站依申请而分配的传输资源,如所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源,则所述第一用户设备向所述目标基站申请传输资源,并使用所述目标基站分配的传输资源向所述第二用户设备传输消息,其中,X为有理数,K为正整数。
  11. 根据权利要求9或10所述的方法,其特征在于,所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源具体包括:
    所述第一用户监听传输资源处于空闲状态,且经过Yms时间,所述传输资源仍然处于空闲状态,则所述第一用户设备在所述传输资源上向第二用户设备传输消息,其中,所述Y为有理数。
  12. 根据权利要求9至11任一所述的方法,其特征在于,所述竞争资源的信息或者非竞争资源的信息携带于主信息块、系统信息块或无线资源控制信令中任意一种中。
  13. 根据权利要求9至12任一所述的方法,其特征在于,所述第一用户设备通过向所述目标基站申请而获得的资源包括所述竞争资源和/或所述非竞争资源。
  14. 根据权利要求10至13任一所述的方法,其特征在于,所述Xms时间由所述目标基站确定或者为预定义的时间。
  15. 根据权利要求10至14任一所述的方法,其特征在于,所述K次竞争由所述目标基站确定或者为预定义的次数。
  16. 根据权利要求9至15任一所述的方法,其特征在于,所述竞争资源的信息或非竞争资源的信息包括所述传输资源在其所在的无线帧中的数量和/或位置。
  17. 一种资源配置方法,其特征在于,包括:
    蜂窝网络基站向第一用户设备发送竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源,所述竞争资源适于使得所述第一用户设备在所述竞争资源对应的时间窗内竞争传输资源并当所述第一用户设备获得所述传输资源时所述第一用户设备使用所获得的传输资源向第二用户设备传输消息。
  18. 根据权利要求17所述的方法,其特征在于,所述基站还向所述第一用户设备发送非竞争资源的信息,所述非竞争资源为由所述目标基站依申请而分配的传输资源,如所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源,则所述第一用户设备向所述基站申请传输资源,并使用所述基站分 配的传输资源向所述第二用户设备传输消息,其中,X为有理数,K为正整数。
  19. 根据权利要求17或18所述的方法,其特征在于,所述竞争资源的信息或者非竞争资源的信息携带于主信息块、系统信息块或无线资源控制信令中任意一种中。
  20. 根据权利要求17至19任一所述的方法,其特征在于,所述基站分配给所述第一用户设备的传输资源包括所述竞争资源和/或所述非竞争资源。
  21. 根据权利要求18至20任一所述的方法,其特征在于,所述Xms时间由所述基站确定或者为预定义的时间。
  22. 根据权利要求18至21任一所述的方法,其特征在于,所述K次竞争由所述基站确定或者为预定义的次数。
  23. 根据权利要求17至22任一所述的方法,其特征在于,所述竞争资源的信息或非竞争资源的信息包括所述传输资源在其所在的无线帧中的数量和/或位置。
  24. 第一用户设备,其特征在于,包括:
    接收器,用于从蜂窝网络基站接收竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源;
    处理器,用于根据所述接收器接收的竞争资源的信息在所述竞争资源对应的时间窗内竞争传输资源;
    发射器,用于在所述处理器获得传输资源时,使用所获得的传输资源向第二用户设备传输消息。
  25. 根据权利要求24所述的用户设备,其特征在于:
    所述接收器还用于从所述基站接收非竞争资源的信息,所述非竞争资源为由基站依申请而分配的传输资源;
    所述处理器还用于当所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源时,向所述基站申请传输资源,其中,X为有理数,K为正整数。
  26. 根据权利要求24或25所述的用户设备,其特征在于:所述处理器用于在所述竞争资源对应的时间窗内竞争传输资源具体包括:
    所述处理器用于监听传输资源处于空闲状态,且经过Yms时间,所述传输资源仍然处于空闲状态,则通知所述发射器使用所述传输资源向第二用户设备传输消息,其中,所述Y为有理数。
  27. 根据权利要求24至26任一项所述的用户设备,其特征在于,所述竞争资源的信息或者非竞争资源的信息携带于主信息块、系统信息块或无线资源控制信令中任意一种中。
  28. 根据权利要求24至27任一项所述的用户设备,其特征在于,所述处理器向基站申请而获得的资源包括所述竞争资源和/或所述非竞争资源。
  29. 根据权利要求25至28任一项所述的用户设备,其特征在于,所述Xms由所述基站确定或者为预定义的时间。
  30. 根据权利要求25至29任一项所述的用户设备,其特征在于,所述K次竞争尝试由所述基站确定或者为预定义的次数。
  31. 根据权利要求24至30任一项所述的用户设备,其特征在于,所述竞争资源的信息或非竞争资源的信息包括所述传输资源在其所在的无线帧中的数量和/或位置。
  32. 一种蜂窝网络基站,其特征在于,包括:
    发射器,用于向第一用户设备发送竞争资源的信息,所述竞争资源为以自主竞争方式获取的传输资源,所述竞争资源使得所述第一用户设备在所述竞争 资源对应的时间窗内竞争传输资源并当所述第一用户设备获得所述传输资源时所述第一用户设备使用所获得的传输资源向第二用户设备传输消息。
  33. 根据权利要求32所述的基站,其特征在于,所述基站还包括接收器和处理器;
    所述发射器还用于向所述第一用户设备发送非竞争资源的信息,所述非竞争资源为由基站依申请而分配的传输资源;
    所述接收器用于当所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源时,接收所述第一用户设备向所述基站提交的请求分配传输资源的申请;
    所述处理器用于根据所述申请向所述第一用户设备分配传输资源,以使得所述第一用户设备向所述第二用户设备传输消息,其中,X为有理数,K为正整数。
  34. 根据权利要求32或33所述的基站,其特征在于,所述竞争资源的信息或者非竞争资源的信息携带于主信息块、系统信息块或无线资源控制信令中任意一种中。
  35. 根据权利要求32或34任一所述的基站,其特征在于,所述处理器分配给所述第一用户设备的传输资源包括所述竞争资源和/或所述非竞争资源。
  36. 根据权利要求33或35任一所述的基站,其特征在于,所述Xms时间由所述处理器确定或者为预定义的时间。
  37. 根据权利要求33或36任一所述的基站,其特征在于,所述K次竞争由所述处理器确定或者为预定义的次数。
  38. 根据权利要求32至37任一所述的方法,其特征在于,所述竞争资源的 信息或非竞争资源的信息包括所述传输资源在其所在的无线帧中的数量和/或位置。
  39. 一种通信系统,其特征在于,包括第一用户设备和蜂窝网络基站;
    所述第一用户设备包括:
    第一用户设备接收器,用于从所述基站接收竞争资源的信息;所述竞争资源为以自主竞争方式获取的传输资源;
    第一用户设备处理器,用于根据所述接收器接收的竞争资源的信息在所述竞争资源对应的时间窗内竞争传输资源;
    第一用户设备发射器,用于在所述处理器获得传输资源时,使用所获得的传输资源向第二用户设备传输消息;
    所述基站包括:
    基站发射器,用于向第一用户设备发送竞争资源的信息。
  40. 根据权利要求39所述的通信系统,其特征在于,所述基站还包括:基站接收器和基站处理器;
    所述基站发射器还用于向所述第一用户设备发送非竞争资源的信息,所述非竞争资源为由基站依申请而分配的传输资源;
    所述基站接收器用于当所述第一用户设备经过Xms时间或者经过K次竞争后未获得传输资源时,接收所述第一用户设备向所述基站提交的请求分配传输资源的申请;
    所述基站处理器用于根据所述申请向所述第一用户设备分配传输资源,以使得所述第一用户设备向所述第二用户设备传输消息,其中,X为有理数,K为正整数。
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