WO2016188236A1 - 一种资源碰撞的检测指示方法及装置 - Google Patents

一种资源碰撞的检测指示方法及装置 Download PDF

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Publication number
WO2016188236A1
WO2016188236A1 PCT/CN2016/078801 CN2016078801W WO2016188236A1 WO 2016188236 A1 WO2016188236 A1 WO 2016188236A1 CN 2016078801 W CN2016078801 W CN 2016078801W WO 2016188236 A1 WO2016188236 A1 WO 2016188236A1
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Prior art keywords
service
subframe
collision
terminal
frame
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PCT/CN2016/078801
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English (en)
French (fr)
Inventor
周海军
冯媛
房家奕
赵毅
赵丽
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a method and apparatus for detecting a resource collision.
  • the terminal In the collision discovery process of the slotted ALOHA (Aloha) in the Internet of Vehicles, the terminal is based on the set subframe period (assuming that there are N subframes), in each subframe period, in the selected transmitter. Transmit business data on the frame. While transmitting the service data, the terminal needs to send frame information (FI), wherein the FI is composed of information of N subframes in the subframe period, and the information of each subframe includes an 8-bit temporary identifier (Source Temporary Identifier, STI). And 2-bit status information (STATUS). The specific meaning of the status information is: an idle state, an occupied state, a collision state, or a two-hop neighbor node occupancy state.
  • FI frame information
  • STI 8-bit temporary identifier
  • STATUS 2-bit status information
  • the FI sent by the terminal needs to include information about each subframe in the corresponding subframe period, the FI needs to occupy a large amount of time-frequency resources, which usually causes a serious running load on the system.
  • the UE needs to include information of 100 subframes in each FI sent by the terminal. Since the data size of the information of each subframe is 10 bits, the terminal Each time you need to send a 1000-bit FI while sending the service data.
  • the data load reserved for security messages similar to FI in the Internet of Vehicles is about 3,000 bits. Therefore, compared with the service data, the overhead of FI is too large, which will bring a serious operational load to the system.
  • the embodiment of the present disclosure provides a method and a device for detecting a resource collision, which are used to solve the problem that the excessive overhead of the FI in the prior art brings a serious operational load to the system.
  • a method for detecting a resource collision including:
  • the first terminal performs signal monitoring on each of the service sub-frames that are not occupied by the first terminal, where the first terminal determines that the one service sub-frame is occupied, based on the received signal. Performing interference measurement, and determining, according to the measurement result, whether the one service subframe collides;
  • the first terminal After the end of one frame period, the first terminal generates collision indication information based on all the service subframes in which the collision occurs, and sends the service data and the collision indication information on the next selected service subframe, where the collision indication
  • the information includes a collision message of the at least one service subframe in which the first terminal determines that a collision has occurred.
  • the "state occupancy information of all subframes" is replaced by transmitting only the collision indication message and the discovery of the collision is realized. Therefore, the system signaling overhead can be effectively reduced, and the hidden collision terminal can be found.
  • the first terminal determines that a service subframe is occupied, and specifically includes:
  • the first terminal determines that the total power of the received signal reaches a preset first threshold, it is determined that the one service subframe is occupied.
  • the first terminal determines that the total power of the received signal does not reach the preset first threshold, performing interference measurement based on the received signal, and recording corresponding first interference power corresponding to the one service subframe; Determining whether the occupation information is recorded corresponding to the one service sub-frame, and if so, maintaining the occupation information unchanged; otherwise, the idle information is recorded corresponding to the one service sub-frame.
  • the method further includes:
  • the first terminal receives the collision indication information sent by the second terminal on the one service sub-frame, and records the occupation information of each other service sub-frame recorded in the collision indication information respectively when the collision indication information is successfully parsed.
  • the sequence number of the frame, k is an integer
  • Periodod' is a service period for transmitting service data of the terminal occupying the other service sub-frame
  • Period is a preset frame period.
  • the first terminal records occupation information corresponding to one other service subframe, including:
  • the first terminal records the occupation information corresponding to the one other service sub-frame, where the occupation information includes the identifier of the terminal occupying the corresponding other service sub-frame, and the first terminal determines that any other service sub-frame record is corresponding.
  • the latest occupancy information is inconsistent with the identity of the terminal included in the original occupation information, any one of the other service subframes is marked as a collision.
  • the first terminal determines that a service sub-frame is occupied, performing interference measurement based on the received signal, and recording, according to the measurement result, whether the one service sub-frame collides, including:
  • the first terminal determines that the one service subframe is occupied, performing interference measurement based on the received signal to obtain a second interference power
  • the first terminal determines whether the second interference power reaches a preset second threshold, and if yes, determines that the one service subframe collides; otherwise, determines that the service subframe does not collide.
  • potential collision subframes can be found by interference power measurement, and hidden collision terminals are effectively found.
  • the method further includes:
  • SFc is the sequence number of the one service subframe
  • SFi is the currently determined service subframe.
  • a sequence number where k is an integer, Periodx is a period in which the second terminal sends service data, and Period is a preset frame period, where the first collision identifier includes an identifier of the second terminal;
  • the occupancy information, the second interference power, and the second collision identifier are recorded corresponding to the one service subframe, where the second collision identifier includes the second interference power.
  • the method further includes:
  • the first terminal determines whether the service data is periodically sent according to the parsing result, and if yes, determines that the collision indication information needs to be reported for the one service sub-frame; otherwise, it is determined that the collision indication is not required to be reported for the one service sub-frame. information.
  • the method further includes:
  • a service subframe where the occupancy information and the second interference power are recorded, where SFc is the sequence number of the one service subframe, SFi is the sequence number of the currently determined service subframe, k is an integer, and Periodx is the second The period during which the terminal sends the service data, and the Period is the preset frame period;
  • the occupation information and the second interference power are recorded corresponding to the one service subframe.
  • the method further includes:
  • the occupation information recorded by the service subframe includes the identifier of the second terminal, and the first terminal determines the latest occupation information corresponding to any one of the service subframe records and the terminal included in the original occupation information. When the identifiers are inconsistent, the any one of the service subframes is marked as a collision.
  • the terminal can include the terminal identifier for transmitting the service data in the occupied message, which is beneficial for judging the collision situation and eliminating the misjudgment of the collision.
  • the first terminal after the end of one frame period, the first terminal generates collision indication information based on all the service subframes in which the collision occurs, where the collision indication information includes at least one service sub-subject that the first terminal determines that a collision occurs.
  • Collision messages for frames including:
  • the first terminal selects the second highest interference power from all the service subframes that determine the collision. N service sub-frames, and respectively generating corresponding collision messages for each of the N service sub-frames, and generating the collision indication information based on all generated collision messages; or
  • the first terminal selects a service subframe in which the second interference power is higher than the preset third threshold value, and generates a corresponding collision for each of the selected service subframes.
  • the message, and the collision indication information is generated based on all generated collision messages.
  • the first terminal sends the service data and the collision indication information on the service subframe selected by the first terminal, including:
  • the first terminal determines, according to the collision indication information sent by all other terminals received in the frame period, that the selected service sub-frame does not collide, and after transmitting the service sub-frame, sends the service data and its current current The generated collision indication information.
  • the method further includes:
  • the first terminal re-selects its own service subframe according to the collision indication information sent by all other terminals received in the frame period, and determines that the selected service sub-frame collides; wherein the first terminal determines itself
  • the collision of the selected service subframe includes: in all the obtained collision indication information, the other service identifier is recorded in the service subframe selected by the user; or the interference corresponding to the service subframe selected by the self-selection
  • the power is higher than the preset fourth threshold.
  • a detection indication device for resource collision including:
  • a judging unit configured to perform signal monitoring on each of the service sub-frames that are not occupied by the user in a frame period, where each of the service sub-frames is determined to be occupied based on the received signal Interfering with the measurement, and determining, according to the measurement result, whether the one service subframe collides;
  • a sending unit configured to generate collision indication information based on all the service subframes in which the collision occurs after the end of one frame period, and send the service data and the collision indication information on the next selected service subframe, where
  • the collision indication information includes a collision message of the at least one service subframe in which the first terminal determines that a collision occurs.
  • the "state occupancy information of all subframes" is replaced by transmitting only the collision indication message and the discovery of the collision is realized. Therefore, the system signaling overhead can be effectively reduced, and the hidden collision terminal can be found.
  • the determining unit when determining that a service subframe is occupied, is specifically configured to:
  • the determining unit is specifically configured to: when determining that the total power of the received signal does not reach a preset first threshold, perform interference measurement based on the received signal, and correspondingly record the first corresponding to the one service subframe. Interference power; and determining whether the occupation information is recorded in the corresponding one of the service sub-frames; if yes, the occupation information is kept unchanged; otherwise, the idle information is recorded corresponding to the one service sub-frame.
  • the determining unit is further configured to:
  • the determining unit is configured to:
  • the determining unit when determining that a service subframe is occupied, performing interference measurement based on the received signal, and recording, according to the measurement result, whether the one service subframe collides, the determining unit is configured to:
  • potential collision subframes can be found by interference power measurement, and hidden collision terminals are effectively found.
  • the determining unit is further configured to:
  • SFc is the sequence number of the one service subframe
  • SFi is the currently determined service subframe.
  • a sequence number where k is an integer, Periodx is a period in which the second terminal sends service data, and Period is a preset frame period, where the first collision identifier includes an identifier of the second terminal;
  • the occupancy information, the second interference power, and the second collision identifier are recorded corresponding to the one service subframe, where the second collision identifier includes the second interference power.
  • the determining unit is further configured to:
  • the determining unit is further configured to:
  • a service subframe where the occupancy information and the second interference power are recorded, where SFc is the sequence number of the one service subframe, SFi is the sequence number of the currently determined service subframe, k is an integer, and Periodx is the second The period during which the terminal sends the service data, and the Period is the preset frame period;
  • the occupation information and the second interference power are recorded corresponding to the one service subframe.
  • the determining unit is further configured to:
  • the occupation information recorded by the service subframe of the Period-1] includes the identifier of the second terminal, and the first terminal determines the latest occupation information and the original occupation information included in the record corresponding to any one of the service subframes.
  • the any one of the service subframes is marked as a collision.
  • the terminal can include the terminal identifier for transmitting the service data in the occupied message, which is beneficial for judging the collision situation and eliminating the misjudgment of the collision.
  • the collision indication information is generated based on all the service subframes in which the collision occurs, where the collision indication information includes the at least one service subframe in which the first terminal determines that a collision occurs.
  • Collision message the sending unit is used to:
  • the N service sub-frames with the highest interference power are selected from all the service sub-frames in which the collision occurs, and corresponding collision messages are respectively generated for each of the N service sub-frames, and Generate all the collision messages to generate the collision indication information; or,
  • a service subframe in which the second interference power is higher than the preset third threshold is selected from all the service subframes in which the collision occurs, and a corresponding collision message is generated for each of the selected service subframes, and Collision indication information is generated based on all generated collision messages.
  • the sending unit when the service data and the collision indication information are sent on the next selected service subframe, the sending unit is configured to:
  • the collision indication information sent by all other terminals received in the frame period when it is determined that the selected service sub-frame does not collide, after the service sub-frame is reached, the service data and the collision currently generated by itself are sent. Instructions.
  • the method further includes:
  • a reselecting unit configured to reselect a service sub-frame of the service sub-frame selected by the other ones according to the collision indication information sent by all other terminals received in the frame period; wherein, the first The terminal determines that the collision of the selected service sub-frames includes: in all the obtained collision indication information, another terminal identifier is recorded corresponding to the selected service sub-frame; or, corresponding to the service sub-frame selected by the terminal The recorded interference power is higher than the preset fourth threshold.
  • a detection indication device for resource collision comprising a processor, a transceiver, and a memory, wherein:
  • a processor for reading a program in the memory performing the following process:
  • Signal monitoring is performed on each service subframe that is not occupied by itself in one frame period, And determining, when the one service sub-frame is occupied, performing interference measurement based on the received signal, and determining, according to the measurement result, whether the one service sub-frame collides; and after one frame period ends, Generating collision indication information based on all the service subframes in which the collision occurs, and transmitting the service data and the collision indication information on the next selected service subframe, where the collision indication information includes the first terminal determination A collision message of at least one service subframe in which a collision occurs.
  • a transceiver for receiving and transmitting data under the control of a processor.
  • the processor when determining that a service subframe is occupied, is specifically configured to:
  • the processor is specifically configured to: when the total power of the received signal does not reach the preset first threshold, perform interference measurement based on the received signal, and record the corresponding first interference power corresponding to the one service subframe. And determining whether the occupation information is recorded in the corresponding one of the service sub-frames, and if so, maintaining the occupation information unchanged; otherwise, the idle information is recorded corresponding to the one service sub-frame.
  • the processor is further configured to:
  • the processor is configured to:
  • the processor when determining that a service subframe is occupied, performing interference measurement based on the received signal, and When recording, according to the measurement result, whether the one service subframe has a collision, the processor is configured to:
  • the processor is further configured to:
  • SFc is the sequence number of the one service subframe
  • SFi is the currently determined service subframe.
  • a sequence number where k is an integer, Periodx is a period in which the second terminal sends service data, and Period is a preset frame period, where the first collision identifier includes an identifier of the second terminal;
  • the occupancy information, the second interference power, and the second collision identifier are recorded corresponding to the one service subframe, where the second collision identifier includes the second interference power.
  • the processor is further configured to:
  • the processor is further configured to:
  • a service subframe where the occupancy information and the second interference power are recorded, where SFc is the sequence number of the one service subframe, SFi is the sequence number of the currently determined service subframe, k is an integer, and Periodx is the second The period during which the terminal sends the service data, and the Period is the preset frame period;
  • the occupation information and the second interference power are recorded corresponding to the one service subframe.
  • the processor when the service data is successfully parsed, the processor is further configured to:
  • the occupation information recorded by the service subframe includes the identifier of the second terminal, and the first terminal determines that the latest occupation information corresponding to any one of the service subframe records is different from the identifier of the terminal included in the original occupation information. , marking any one of the service subframes as a collision.
  • the collision indication information is generated based on all the service subframes in which the collision occurs, where the collision indication information includes the at least one service subframe in which the first terminal determines that a collision occurs.
  • the processor is used to:
  • the N service sub-frames with the highest interference power are selected from all the service sub-frames in which the collision occurs, and corresponding collision messages are respectively generated for each of the N service sub-frames, and Generate all the collision messages to generate the collision indication information; or,
  • a service subframe in which the second interference power is higher than the preset third threshold is selected from all the service subframes in which the collision occurs, and a corresponding collision message is generated for each of the selected service subframes, and Collision indication information is generated based on all generated collision messages.
  • the processor when the service data and the collision indication information are sent on the next selected service subframe, the processor is configured to:
  • the collision indication information sent by all other terminals received in the frame period when it is determined that the selected service sub-frame does not collide, after the service sub-frame is reached, the service data and the collision currently generated by itself are sent. Instructions.
  • the detecting means for detecting the resource collision further includes:
  • a processor configured to re-select a service sub-frame of the service sub-frame that is selected by the other one of the other ones received in the frame period, where the first sub-terminal is re-selected; Determining the collision of the service sub-frame selected by the user includes: in all the obtained collision indication information, another terminal identifier is recorded corresponding to the service sub-frame selected by the self; or, corresponding to the service sub-frame record selected by the self-selection The interference power is higher than the preset fourth threshold.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture also allows for a variety of other circuits such as peripherals, voltage regulators, and power management circuits. Linked together, these are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • FIG. 1 is a flowchart showing an overview of a detection indication of a resource collision in an embodiment of the present disclosure
  • 2A is a schematic diagram of usage of a terminal slot resource in an embodiment of the present disclosure
  • 2B is a schematic diagram showing actual distribution of a terminal space in an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a detection indication of a resource collision in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a physical device for detecting a resource collision in an embodiment of the present disclosure.
  • various embodiments of the present disclosure propose a method and apparatus for detecting a resource collision.
  • the method is: the first terminal performs signal monitoring on each service subframe that is not occupied by itself in one frame period, where, when a service subframe is reached, the first terminal determines that a service subframe is occupied, based on Receiving a signal for interference measurement, and judging whether a service subframe collides according to the measurement result; after one frame period ends, the first terminal generates collision indication information based on all the collision service sub-frames, and selects the service in the next self-selected service.
  • the service data and the collision indication information are sent on the subframe, where the collision indication information includes a collision message that the first terminal determines that at least one service subframe of the collision occurs.
  • a certain terminal after a certain terminal registers with the network, it needs to listen to a complete frame period (also referred to as an observation period), and then select a service subframe occupation from the idle resources, and use The service data is sent, where one service subframe is randomly selected, and the service subframe with the smallest interference power is selected in the idle resource.
  • a complete frame period also referred to as an observation period
  • the terminal In the subsequent frame period, if the service sub-frame occupied by the terminal does not collide, the terminal does not actively abandon the occupied service sub-frame, and always uses the occupied service sub-frame to send service data.
  • the terminal monitors a complete observation period, constructs a complete state table based on the received signal and the physical layer measurement, and the terminal determines whether the service subframe occupied by the terminal occurs by the monitoring result of the previous observation period. Collision, if yes, reselect the service subframe occupied by itself in the next frame period; otherwise, keep the current occupied service subframe in the next frame period.
  • the period in which the terminal sends the service data is included in the observation period, and the period in which the service data is sent by different terminals may be the same or different, and the observation period shall be an integer multiple of the period in which the service data is sent by all terminals, that is, the observation period is for all terminals to send services.
  • the least common multiple of the period of the data This ensures that the terminal can listen to the signals of all other terminals in one observation period.
  • Table 1 is a time-frequency resource usage status table (hereinafter referred to as a status table) maintained by the terminal for subframe 0.
  • a status table in the status bit, S indicates occupancy, and I indicates idle.
  • the valid time for indicating occupancy is recorded. If it is not reset before being cleared, the corresponding subframe is restored to the idle state. If it is reset before being cleared, the corresponding subframe is occupied. status.
  • the reset time (Tx) is an integer multiple of the minimum period in which the traffic data is transmitted on the corresponding subframe.
  • the interference bits the interference power calculated for the corresponding subframe is recorded; for example, Nx represents the interference value calculated in subframe x.
  • the specific process of detecting the resource collision by the first terminal is:
  • Step 100 The first terminal separately performs signal monitoring on each service subframe that is not occupied by itself in one frame period, where each time a service subframe is determined, when the first terminal determines that a service subframe is occupied, based on the reception
  • the signal performs interference measurement, and determines whether a service subframe collides according to the measurement result.
  • Step 110 After the end of one frame period, the first terminal generates collision indication information based on all the service subframes in which the collision occurs, and sends service data and collision indication information on the next selected service subframe, where the collision indication information The collision message of the at least one service subframe in which the first terminal determines that the collision occurs is included.
  • the first terminal When the first terminal performs step 100, the first terminal performs signal monitoring on each service subframe that is not occupied by itself in one frame period, where the first terminal arrives for each service subframe. Determine if this service subframe is occupied.
  • the first terminal occupies the subframe 6 and listens to the subframe 0 that is not occupied by itself.
  • the first terminal obtains the received signal on the subframe 0 and calculates the total power of the received signal, which is specifically divided into two cases. :
  • the interference measurement is performed based on the received signal, and the corresponding first interference power is recorded corresponding to the subframe 0; and the corresponding subframe is determined. Whether the occupation information is recorded in 0, if so, the occupation information remains unchanged; otherwise, the idle information is recorded in the corresponding subframe 0; wherein the occupation information is represented by a symbol S, and the idle information is represented by a symbol I.
  • the first interference power Si the total signal power St of the received signal.
  • the first terminal determines that the total power of the received signal reaches the preset first threshold, it is determined that the subframe 0 is occupied.
  • a timer is also set for each service subframe, and the value of the timer is Tx, and Tx is a minimum period for transmitting service data on the corresponding subframe. Integer multiple.
  • the first terminal determines that the total power of the received signal of the service subframe 0 does not reach the preset first threshold, performs interference measurement based on the received signal, and records corresponding first interference power corresponding to the subframe 0, and then the first terminal When it is judged that the subframe 0 is recorded as the initial information or the idle information, the subframe 0 is recorded as the idle information I. After the above operation ends, the first terminal decrements the non-zero value of the timer of all service subframes by 1, and records the status bits of the service subframe whose value is less than 0 as the idle information I.
  • the first terminal determines that the total power of the received signal reaches the preset first threshold, it is determined that the subframe 0 is occupied, and the occupied information remains unchanged, and is still occupied information S. After the above operation ends, the first terminal also needs to decrement the non-zero value of the timer of all service subframes by 1, and record the status bits of the service subframe whose value is less than 0 as the idle information I.
  • the first terminal may also receive the collision indication information sent by the second terminal that occupies the subframe 0 in the process of monitoring the subframe 0.
  • the first terminal may respectively correspond to the collision indication information.
  • the other service subframes of the Period-1] record the occupation information, that is, the other service sub-frames indicated by the first terminal corresponding to the collision indication information sent by the second terminal, and other services that are not indicated in the collision indication information but meet the above formula
  • the frame records the occupation information (that is, the other service sub-frames corresponding to the two parts different from the sub-frame 0 need to record the occupation information); wherein, SFc' is the sequence number of another service sub-frame, and SFi' is the other service currently determined.
  • the sequence number of the subframe, k is an integer
  • the first terminal may include the occupation symbol S in the occupation information corresponding to the two other service sub-frame records, or include the identifier of the terminal occupying the corresponding other service sub-frames, and the first terminal is adopted in the latter mode.
  • any other service subframe is marked as a collision.
  • the first terminal receives the collision indication information sent by the second terminal on the subframe 0.
  • the first terminal includes the identifier of the third terminal (eg, STI3) in the latest occupation information recorded in the corresponding subframe 1, and the original occupation information recorded by the first terminal corresponding to the subframe 1 last time is included.
  • the identifier of the fifth terminal (STI5) that is, the latest occupation information and the original occupation information are inconsistent.
  • the first terminal marks the subframe 1 as a collision, for example, the transmission bit in the state table corresponding to the subframe 1 is used as a collision.
  • the identifier is recorded as the identifier of the third terminal.
  • the first terminal may perform interference measurement based on the received signal, and continue to determine whether the subframe 0 collides according to the measurement result.
  • the interference power is used as a criterion for judging whether or not the collision is in fact, and the probability of potential collision of the subframe 0 is actually determined.
  • SNR Signal to Noise Ratio
  • SNR has two calculation methods, namely, SNR based on data estimation and SNR based on channel estimation. SNR is the smaller of the two, and both SNR calculation methods are present. There are methods and will not be described here.
  • the first terminal when determining that the subframe 0 is occupied, performs interference measurement based on the received signal to obtain the second interference power. Determining, by the first terminal, whether the second interference power reaches a preset second threshold, and if yes, determining that a collision occurs in the subframe 0; otherwise, determining that the subframe 0 does not collide, that is, if the second interference power reaches a preset
  • the second threshold value indicates that the collision probability of the subframe 0 is large, and it is a potential collision subframe. Otherwise, it is determined that the collision of the subframe 0 does not occur, and the collision probability of the subframe 0 is small.
  • the first terminal determines that the subframe 0 has a collision
  • the first terminal receives the service data sent by the second terminal and performs parsing on the subframe 0, and according to whether the service data is successfully parsed, the two terminals may be specifically classified into two types.
  • the first terminal successfully parses the service data of the second terminal.
  • the frame records the occupancy information, the second interference power, and the first collision identifier.
  • the SFc is the sequence number of the subframe 0
  • the SFi is the sequence number of the currently determined service subframe
  • k is an integer
  • the Periodx is the period in which the second terminal sends the service data
  • the Period is the preset frame period, in the first collision identifier. Contains the identity of the second terminal.
  • the subframe bits in Table 2 record the subframe number, the status bit records the occupancy information, the interference bit records the second interference power, and the transmission bit records the first collision identifier.
  • the first terminal records the occupation information S, the second interference power N0, and the first collision identifier 2 for the subframe 0, where the first collision identifier 2 refers to the identifier of the second terminal, that is, STI2, and the corresponding frame number conforms to the formula.
  • Tx the maximum value
  • the first terminal determines that the second interference power of the subframe 0 reaches the second threshold, and after the service data sent by the second terminal is successfully parsed, the first terminal needs to further perform the analysis result (for example, the period in the collision message). It is determined whether the service data is periodically sent, and if so, it is determined that the collision indication information needs to be reported for the subframe 0, and the first collision identifier is recorded; otherwise, it is determined that the collision indication information is not required to be reported for the subframe 0.
  • the analysis result for example, the period in the collision message
  • the second case the first terminal fails to parse the service data of the second terminal.
  • the first terminal records the occupation information, the second interference power and the second collision identifier corresponding to the subframe 0, wherein the second collision identifier includes the second interference power.
  • the subframe bits in Table 3 record the subframe number, the status bit records the occupancy information, the interference bit records the second interference power, and the transmission bit records the second collision identifier.
  • the first terminal records the occupancy information S, the second interference power N0, and the second collision identifier N0 for the subframe 0, where the second collision identifier refers to the second interference power N0, and further, the timing bit needs to be set to the maximum value.
  • the first terminal determines that the collision does not occur in the subframe 0. If the first terminal determines that the collision does not occur in the subframe 0, the first terminal receives the service data sent by the second terminal and performs parsing on the subframe 0, and according to whether the service data is successfully parsed, Divided into two cases:
  • the first terminal successfully parses the service data of the second terminal.
  • the SFc is the sequence number of the subframe 0
  • the SFi is the sequence number of the currently determined service subframe
  • k is an integer.
  • the Periodx is the period in which the second terminal sends the service data
  • the Period is the preset frame period.
  • the second case the first terminal fails to parse the service data of the second terminal.
  • the first terminal records the occupation information and the second interference power corresponding to the subframe 0.
  • the first terminal records the occupancy information S, the second interference power N0, for the subframe 0.
  • the collision of the subframe 0 may be performed again. The status is judged.
  • the first terminal may learn the identifier of the second terminal that occupies the subframe 0 according to the parsing result of the service data, and include the identifier of the second terminal in the occupied information recorded in the corresponding subframe 0, and meet the corresponding sequence number of all the frames.
  • any one of the service subframes is marked as a collision.
  • the first terminal includes the identifier of the second terminal (eg, STI2) in the occupied information recorded in the corresponding subframe 0 and the subframe 8. If the first terminal determines that the original occupation information of the last corresponding subframe 0 record includes the identifier of the seventh terminal (for example, STI7), that is, the latest occupation information and the original occupation information are inconsistent, the subframe 0 is marked as a collision at this time. And recording the first collision identifier 2, where the first collision identifier 2 refers to the identifier of the second terminal, that is, STI2.
  • the first terminal may re-determine that the subframe 0 collides.
  • the first terminal When the step 110 is performed, that is, after the end of one frame period, the first terminal generates collision indication information based on all the service subframes in which the collision occurs, which may be, but not limited to, the following two methods:
  • the first method is: the first terminal selects N service subframes with the second highest interference power from all the service subframes that determine the collision, and generates respectively for each service subframe in the N service subframes. Corresponding collision messages, and generating collision indication information based on all generated collision messages.
  • STI/N bit which is represented by 8 bits, is used to record the identifier of the terminal occupying the subframe when the service data parsing is successful, When the service data parsing fails, it is used to record the interference power; the period bit is used to record the period in which the terminal that occupies the subframe transmits the service data, wherein there are two types of periods for transmitting the service data, which are 8 subframes and 16 subframes, respectively. It is represented by 1 bit, where 0 represents cycle 8, and 1 represents cycle 16.
  • the contents of the collision indication information generated by frame 6 and subframe 14 are as shown in Table 4:
  • Subframe Decoding STI/N cycle Subframe number Decoding STI/N cycle 6 0 9 1 14 1 N14 1
  • the sequence number of the subframe may be replaced by a relative offset, that is, the relative offset is equal to the sequence number of the subframe carrying the collision indication information minus being determined to occur.
  • the sequence number of the collided subframe, combined with different frame periods, may also be indicated by a different number of bits.
  • the length of a subframe is 1 ms
  • a 9-bit indication is required for a frame period of 0.5 s
  • a 7-bit indication is required for a frame period of 0.1 s.
  • the second method is: the first terminal selects, from all the service sub-frames in which the collision occurs, the service sub-frame with the second interference power being higher than the preset third threshold, and for each service sub-filter The frames respectively generate corresponding collision messages, and generate collision indication information based on all generated collision messages.
  • the number of bits used by the interference power Nx can be compressed, and the minimum is 0 bits, that is, only the sequence number of the service subframe and the terminal occupying the service subframe are reported.
  • the identifier may be, or only the sequence number of the service subframe and the decoding bit of the service subframe are reported, which means that the second interference power is higher than the preset third threshold, and a collision occurs.
  • the decoding bit indicates that the service data parsing fails, the data may not be transmitted on the corresponding periodic bit of the service subframe.
  • the first terminal further determines, according to the collision indication information sent by all other terminals received in the frame period, whether the selected service subframe collides, and determines that no collision occurs. After reaching the service sub-frame selected by itself, the service data and the collision indication information currently generated by itself are sent.
  • the collision indication information may be transmitted in the same subframe as the service data or may be transmitted in the specified separate subframe.
  • the maximum transmission period of the collision indication information is 1 s.
  • the first terminal needs to reselect its own service subframe when it determines that the selected service subframe collides according to the collision indication information sent by all other terminals received in the frame period.
  • the first terminal determines that the collision of the service subframe selected by the first terminal includes at least but not limited to the following two methods:
  • the first terminal learns that all the collision indication information obtained by the first terminal has other terminal identifiers recorded in the service sub-frame selected by itself, and then determines that the selected service sub-frame collides and re-selects its own service sub-frame. .
  • the fourth threshold value herein may be the same as the second threshold value.
  • FIG. 2A is a schematic diagram of the use of the terminal slot resource in the embodiment of the present disclosure.
  • FIG. 2B is a schematic diagram of the actual distribution of the terminal space in the embodiment of the present disclosure.
  • the minimum transmission service data period shown in FIG. 2A is 8 subframes.
  • the frame period is 16 subframes.
  • the status table update process of the terminal 6 is described below by using Tables 5 to 20, respectively. It is assumed that the terminal 6 has not yet selected the service subframe occupied by the terminal 6, wherein the period of the service data of the terminal 9 and the terminal 12 is 16
  • the period in which frames are transmitted by other terminals is 8 subframes.
  • the terminal 6 determines that there is no collision in the subframe 0, the subframe 0 is in the occupied state, and the service data sent by the terminal 6 for the subframe 0 is successfully parsed, therefore, the subframe 0 and the sub-frame Frame 8 is in the status bit, record S, indicating occupancy; in the timing bit, the effective time for indicating occupancy is recorded, 7; in the interference bit, the interference power calculated for subframe 0 is recorded, N0; The bit is empty.
  • the terminal 6 determines that the subframe 1 does not collide, the subframe 1 is in the occupied state, and the service data sent by the terminal 6 for the subframe 1 is successfully parsed, therefore, the subframe 1 and the sub-frame Frame 9 is in the status bit, record S, indicating occupancy; in the timing bit, the effective time for indicating occupancy is recorded, 7; in the interference bit, the interference power calculated for subframe 1 is recorded, N1; The bit is empty. Further, the timers other than subframe 1 and subframe 9 are decremented by one.
  • the terminal 6 determines that the subframe 2 does not collide, the subframe 2 is in the occupied state, and the service data of the terminal 6 for the subframe 2 fails to be parsed. Therefore, the subframe 1 is In the status bit, S is recorded to indicate occupancy; in the timing bit, the effective time for indicating occupancy is recorded, 7; in the interference bit, the interference power calculated for subframe 2 is recorded, N2; the transmission bit is empty. In addition, the timer other than subframe 2 is decremented by one.
  • the terminal 6 determines that the subframe 3 collides, the subframe 3 is in the occupied state, and the service data of the terminal 6 for the subframe 3 fails to parse, and therefore, the subframe 3 is in the state.
  • record S indicating occupancy
  • the effective time for indicating occupancy is recorded, 7
  • the interference bit the interference power calculated for subframe 3 is recorded, N3
  • the transmission bit is N3.
  • the timer other than subframe 3 is decremented by one.
  • the terminal 6 judges that the subframe 4 is idle. Therefore, the subframe 4 records I in the status bit, indicating that it is idle; in the interference bit, the calculation for the subframe 4 is recorded. Interference power, N4. In addition, the timer other than subframe 4 is decremented by one.
  • the terminal 6 judges that the subframe 5 is idle. Therefore, the subframe 5 records I in the status bit, indicating that it is idle; in the interference bit, the calculation for the subframe 5 is recorded. Interference power, N5. In addition, the timer other than subframe 5 is decremented by one.
  • the terminal 6 determines that the subframe 6 has collided, the subframe 6 is in the occupied state, and the service data sent by the terminal 6 for the subframe 6 is successfully parsed. Therefore, the subframe 6 is in the state.
  • record S indicating occupancy
  • the timing bit record the effective time for indicating occupancy, 15
  • in the interference bit record the interference power calculated for subframe 6, N6
  • the timer other than subframe 6 is decremented by one.
  • the terminal 6 judges that the subframe 7 is idle. Therefore, the subframe 7 records I in the status bit, indicating that it is idle; in the interference bit, the calculation for the subframe 7 is recorded. Interference power, N7. In addition, the timer other than subframe 7 is decremented by one.
  • subframe 8 when the subframe 8 is reached, it is determined from the terminal 6 that the subframe 8 does not collide, the subframe 8 is in the occupied state, and the service data sent by the terminal 6 for the subframe 8 is successfully parsed, therefore, the subframe 0 is And sub-frame 8 are in the status bit, record S, indicating occupancy; in the timing bit, record the effective time for indicating occupancy, 7; in the interference bit, record the interference power calculated for subframe 8, N8; The send bit is empty.
  • the timers other than subframe 8 and subframe 0 are decremented by one.
  • the terminal 6 determines that the subframe 9 does not collide, the subframe 9 is in the occupied state, and the service data sent by the terminal 6 for the subframe 9 is successfully parsed, therefore, the subframe 1 and the sub-frame Frame 9 is in the status bit, record S, indicating occupancy; in the timing bit, the effective time for indicating occupancy is recorded, 7; in the interference bit, the interference power calculated for subframe 9 is recorded, N9; The bit is empty. Further, the timers other than the subframe 9 and the subframe 1 are decremented by one.
  • the terminal 6 determines that the subframe 10 does not collide, the subframe 10 is in an occupied state, and the service data sent by the terminal 6 for the subframe 10 is successfully parsed, and therefore, the subframe 10 and the sub-frame 10 Frame 2 is in the status bit, record S, indicating occupancy; in the timing bit, the effective time for indicating occupancy is recorded, 7; in the interference bit, the interference power calculated for subframe 10 is recorded, N10; The bit is empty.
  • the timers other than subframe 10 and subframe 2 are decremented by one.
  • the terminal 6 determines that the subframe 11 does not collide, the subframe 11 is in the occupied state, and the service data sent by the terminal 6 for the subframe 11 is successfully parsed, therefore, the subframe 11 and the sub-frame 11 Frame 3 is in the status bit, record S, indicating occupancy; in the timing bit, the effective time for indicating occupancy is recorded, 7; in the interference bit, the interference power calculated for subframe 11 is recorded, N11; The bit is empty.
  • the timers other than subframe 11 and subframe 3 are decremented by one.
  • the terminal 6 judges that the subframe 12 is idle. Therefore, the subframe 12 records I in the status bit, indicating that it is idle; in the interference bit, the calculation for the subframe 12 is recorded. Interference power, N12. In addition, the timer other than subframe 12 is decremented by one.
  • the terminal 6 judges that the subframe 13 is idle. Therefore, the subframe 13 records I in the status bit, indicating that idle, and in the interference bit, records the calculation for the subframe 13. Interference power, N13. Further, the timer other than the subframe 13 is decremented by one.
  • the terminal 6 determines that the subframe 14 does not collide, the subframe 14 is in the occupied state, and the service data sent by the terminal 6 for the subframe 14 is successfully parsed. Therefore, the subframe 14 is In the status bit, record S, indicating occupancy; in the timing bit, record the effective time for indicating occupancy, 15; in the interference bit, record the interference power calculated for the subframe 14, N14; The delivery position is empty. The timer other than subframe 14 is decremented by one. The terminal 6 resolves the service data transmitted by the terminal 12, and the service period of the service data transmitted by the terminal 12 is 16 subframes.
  • the terminal 6 determines that the subframe 15 does not collide, the subframe 15 is in the occupied state, and the service data sent by the terminal 6 for the subframe 15 is successfully parsed, therefore, the subframe 15 and the sub-frame Frame 7 is in the status bit, record S, indicating occupancy; in the timing bit, the effective time for indicating occupancy is recorded, 7; in the interference bit, the interference power calculated for subframe 15 is recorded, N15; The bit is empty.
  • the timers other than subframe 15 and subframe 7 are decremented by one.
  • the situation in which the terminal updates the state table for the collision indication information sent by each subframe is not considered, and it is determined whether the corresponding subframe is a potential collision subframe only for the interference power of each subframe.
  • the terminal 6 selects a service subframe occupation from the idle resources according to the monitoring result in a complete frame period, and is used to send the service data.
  • a detection device for detecting a resource collision includes:
  • the determining unit 30 is configured to perform signal monitoring on each service subframe that is not occupied by itself in one frame period, where each time a service subframe is determined and a service subframe is occupied, interference is performed based on the received signal. Measuring, and judging whether a service subframe collides according to the measurement result;
  • the sending unit 31 is configured to generate collision indication information based on all the service subframes in which the collision occurs after the end of one frame period, and send the service data and the collision indication information on the next selected service subframe, where the collision indication information
  • the collision message of the at least one service subframe in which the first terminal determines that the collision occurs is included.
  • the determining unit 30 when determining that a service subframe is occupied, is specifically configured to:
  • the determining unit 30 is configured to: when determining that the total power of the received signal does not reach the preset first threshold, perform interference measurement based on the received signal, and record a corresponding first interference power corresponding to one service subframe; and determine Whether the occupation information is recorded corresponding to one service subframe, and if so, the occupation information remains unchanged; otherwise, the idle information is recorded corresponding to one service subframe.
  • the determining unit 30 is further configured to:
  • the collision indication information sent by the second terminal is received on a service sub-frame.
  • the occupation information of each other service sub-frame recorded in the collision indication information is respectively recorded, and the corresponding frame number conforms to the formula.
  • SFi' SFc'+k*Periodx', other service subframes of SFi' ⁇ [0,Period-1] record occupancy information; where SFc' is the sequence number of another service subframe, and SFi' is currently determined
  • the sequence number of other service subframes, k is an integer, and Periodx' is a service period for transmitting service data of a terminal occupying another service subframe, and Period is a preset frame period.
  • the determining unit 30 is configured to:
  • the occupation information of the other service sub-frame is recorded, wherein the occupation information includes the identifier of the terminal occupying the corresponding other service sub-frame, and the first terminal determines the latest occupation information and the original record corresponding to any other service sub-frame record.
  • the identifiers of the terminals included in the occupation information are inconsistent, any other service subframe is marked as a collision.
  • the determining unit 30 when determining that a service subframe is occupied, performing interference measurement based on the received signal, and recording whether a service subframe collides according to the measurement result, the determining unit 30 is configured to:
  • the determining unit 30 is further configured to:
  • the service sub-frame records the occupancy information, the second interference power, and the first collision identifier, where SFc is the sequence number of a service subframe, SFi is the sequence number of the currently determined service subframe, k is an integer, and Periodx is the second
  • the period during which the terminal sends the service data, the Period is a preset frame period, and the first collision identifier includes the identifier of the second terminal;
  • the occupation information, the second interference power, and the second collision identifier are recorded in a service subframe, where the second collision identifier includes the second interference power.
  • the determining unit 30 is further configured to:
  • the service data is determined to be periodically sent according to the analysis result. If yes, it is determined that the collision indication information needs to be reported for one service subframe; otherwise, it is determined that the collision indication information is not required to be reported for one service subframe.
  • the determining unit 30 is further configured to:
  • the occupancy information and the second interference power are recorded, where SFc is the sequence number of a service subframe, SFi is the sequence number of the currently determined service subframe, k is an integer, and Periodx is a period in which the second terminal sends service data, and Period is a pre- Set the frame period;
  • the occupation information and the second interference power are recorded corresponding to one service subframe.
  • the determining unit 30 is further configured to:
  • the occupied information of the record includes the identifier of the second terminal, and the first terminal determines that the corresponding When the latest occupation information recorded by one service subframe is inconsistent with the identifier of the terminal included in the original occupation information, any one of the service subframes is marked as a collision.
  • the collision indication information is generated based on all the service subframes in which the collision occurs, where the collision indication information includes a collision message of the at least one service subframe that the first terminal determines to collide, and sends the collision message.
  • Unit 31 is used to:
  • the N service subframes with the highest interference power are selected from all the service subframes in which the collision occurs, and the corresponding collision message is generated for each of the N service subframes, and the generated collision message is generated. All collision messages generate collision indication information; or,
  • a service subframe in which the second interference power is higher than the preset third threshold is selected from all the service subframes in which the collision occurs, and a corresponding collision message is generated for each of the selected service subframes, and Collision indication information is generated based on all generated collision messages.
  • the sending unit 31 is configured to:
  • the collision indication information sent by all other terminals received in the frame period when it is determined that the selected service subframe does not collide, after the service subframe is reached, the service data and the collision indication information currently generated by itself are transmitted.
  • the re-selection unit 32 is configured to re-select the service sub-frame of the service sub-frame selected by the other ones according to the collision indication information sent by all other terminals received in the frame period; wherein, the first terminal Determining the collision of the selected service sub-frame includes: in all the obtained collision indication information, the other service identifier is recorded in the service sub-frame selected by the user; or the interference power corresponding to the service sub-frame selected by the service is high.
  • the preset fourth threshold is configured to re-select the service sub-frame of the service sub-frame selected by the other ones according to the collision indication information sent by all other terminals received in the frame period; wherein, the first terminal Determining the collision of the selected service sub-frame includes: in all the obtained collision indication information, the other service identifier is recorded in the service sub-frame selected by the user; or the interference power corresponding to the service sub-frame selected by the service is high.
  • the preset fourth threshold is configured to re-select the service sub-
  • a resource collision detection indicating device includes a processor 400, a transceiver 410, and a memory 420, wherein:
  • the processor 400 is configured to read a program in the memory and perform the following process:
  • Signal monitoring is performed on each service subframe that is not occupied by itself in one frame period, where each time a service subframe is determined and a service subframe is determined to be occupied, interference measurement is performed based on the received signal, and according to the measurement result Determining whether a service subframe has a collision; and, after the end of one frame period, generating collision indication information based on all the service subframes in which the collision occurs, and in the next
  • the service data and the collision indication information are sent on the service subframes that are selected by the user, and the collision indication information includes a collision message of the at least one service subframe in which the first terminal determines that the collision occurs.
  • the transceiver 410 is configured to receive and transmit data under the control of the processor.
  • the processor 400 when determining that a service subframe is occupied, the processor 400 is specifically configured to:
  • the processor is specifically configured to: when the total power of the received signal does not reach the preset first threshold, perform interference measurement based on the received signal, and record a corresponding first interference power corresponding to one service subframe; and determine a corresponding Whether a service sub-frame records occupancy information, and if so, keeps the occupancy information unchanged; otherwise, the idle information is recorded corresponding to one service sub-frame.
  • processor 400 is further configured to:
  • the collision indication information sent by the second terminal is received on a service sub-frame.
  • the occupation information of each other service sub-frame recorded in the collision indication information is respectively recorded, and the corresponding frame number conforms to the formula.
  • SFi' SFc'+k*Periodx', other service subframes of SFi' ⁇ [0,Period-1] record occupancy information; where SFc' is the sequence number of another service subframe, and SFi' is currently determined
  • the sequence number of other service subframes, k is an integer, and Periodx' is a service period for transmitting service data of a terminal occupying another service subframe, and Period is a preset frame period.
  • the processor 400 is configured to:
  • the occupation information of the other service sub-frame is recorded, wherein the occupation information includes the identifier of the terminal occupying the corresponding other service sub-frame, and the first terminal determines the latest occupation information and the original record corresponding to any other service sub-frame record.
  • the identifiers of the terminals included in the occupation information are inconsistent, any other service subframe is marked as a collision.
  • the processor 400 when determining that a service subframe is occupied, performing interference measurement based on the received signal, and recording whether a service subframe collides according to the measurement result, the processor 400 is configured to:
  • the processor 400 is further configured to:
  • the service sub-frame records the occupancy information, the second interference power, and the first collision identifier, where SFc is the sequence number of a service subframe, SFi is the sequence number of the currently determined service subframe, k is an integer, and Periodx is the second
  • the period during which the terminal sends the service data, the Period is a preset frame period, and the first collision identifier includes the identifier of the second terminal;
  • the occupation information, the second interference power, and the second collision identifier are recorded in a service subframe, where the second collision identifier includes the second interference power.
  • the processor 400 is further configured to:
  • the service data is determined to be periodically sent according to the analysis result. If yes, it is determined that the collision indication information needs to be reported for one service subframe; otherwise, it is determined that the collision indication information is not required to be reported for one service subframe.
  • the processor 400 is further configured to:
  • the occupancy information and the second interference power are recorded, where SFc is the sequence number of a service subframe, SFi is the sequence number of the currently determined service subframe, k is an integer, and Periodx is a period in which the second terminal sends service data, and Period is a pre- Set the frame period;
  • the occupation information and the second interference power are recorded corresponding to one service subframe.
  • the processor 400 is further configured to:
  • the recorded occupation information includes the identifier of the second terminal, and the first terminal determines that the latest occupation information corresponding to any one of the service subframe records and the identifier of the terminal included in the original occupation information are different. When so, mark any business sub-frame as a collision.
  • the collision indication information is generated based on all the service subframes in which the collision occurs, where the collision indication information includes a collision message of the at least one service subframe in which the first terminal determines that the collision occurs, and the processing is performed.
  • the device 400 is used to:
  • the N service subframes with the highest interference power are selected from all the service subframes in which the collision occurs, and the corresponding collision message is generated for each of the N service subframes, and the generated collision message is generated. All collision messages generate collision indication information; or,
  • a service subframe in which the second interference power is higher than the preset third threshold is selected from all the service subframes in which the collision occurs, and a corresponding collision message is generated for each of the selected service subframes, and Collision indication information is generated based on all generated collision messages.
  • the processor 400 when the service data and the collision indication information are sent on the next selected service subframe, the processor 400 is configured to:
  • the collision indication information sent by all other terminals received in the frame period when it is determined that the selected service subframe does not collide, after the service subframe is reached, the service data and the collision indication information currently generated by itself are transmitted.
  • the processor 400 is configured to reselect the service sub-frame of the service sub-frame that is selected by the mobile terminal according to the collision indication information sent by all other terminals received in the frame period; wherein, the first terminal determines The collision of the selected service sub-frames includes: in all the obtained collision indication information, the other service identifiers are recorded in the service sub-frames selected by the user; or the interference power corresponding to the selected service sub-frames is higher than The preset fourth threshold.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • 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.
  • the transceiver can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • the first terminal is not itself in one frame period. Signal monitoring is performed on each of the occupied service sub-frames.
  • the first terminal determines that a service sub-frame is occupied, performs interference measurement based on the received signal, and determines a service sub-frame according to the measurement result. Whether a collision occurs; after the end of one frame period, the first terminal generates collision indication information based on all the service subframes in which the collision occurs, and transmits the service data and the collision indication information on the next selected service subframe. Therefore, the system signaling overhead can be effectively reduced, and the hidden collision terminal can be found.
  • the "state occupancy information of all subframes" is replaced by transmitting only the collision indication message and the discovery of the collision is realized.
  • the probability of collisions occurring in actual systems is extremely low, and thus the system signaling overhead can be effectively reduced.
  • a potential collision subframe can be found by the interference power measurement, and thus the hidden collision terminal can be effectively found.
  • the terminal can include the terminal identifier for sending the service data in the occupied message, which is convenient for judging the collision situation and eliminating the misjudgment of the collision.
  • the present disclosure predefines the format of the collision indication message in order to enable the receiving terminal to accurately receive the collision indication information.
  • the terminal finds that the subframe occupied by the terminal collides based on the collision indication message, it needs to select a new time-frequency resource to send the service data.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本公开文本涉及通信领域，特别是涉及一种资源碰撞的检测指示方法及装置。用以解决帧信息开销过大给系统带来严重运行负荷的问题，该方法为：第一终端分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，第一终端确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断一个业务子帧是否出现碰撞；在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及碰撞指示信息。因此能够有效地降低系统信令开销，并能够发现隐藏碰撞终端。

Description

一种资源碰撞的检测指示方法及装置
相关申请的交叉参考
本申请主张在2015年5月25日在中国提交的中国专利申请号No.201510272136.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开文本涉及通信领域，特别是涉及一种资源碰撞的检测指示方法及装置。
背景技术
在车联网内的时隙ALOHA(阿罗哈)的碰撞发现过程中，终端基于设定的子帧周期(假设包含有N个子帧)，在每一个子帧周期中，在选定的发送子帧上发送业务数据。在发送业务数据的同时，终端需要发送帧信息(Frame Information，FI)，其中FI是由子帧周期中N个子帧的信息构成，每一个子帧的信息包括8比特临时标识(Source Temporary Identifier，STI)和2比特状态信息(STATUS)。其中，状态信息的具体含义为：空闲状态、占用状态、碰撞状态或两跳邻节点占用状态。
显然，由于终端发送的FI中需要包含相应子帧周期中每一个子帧的信息，因此，FI的发送需要占用大量的时频资源，通常情况下，会给系统造成严重的运行负荷。
例如，假设终端使用的子帧周期中包含有100个子帧，终端每次发送的FI中就需要包含100个子帧的信息，由于每一个子帧的信息的数据量大小为10比特，那么，终端每次都需要在发送业务数据的同时发送1000比特的FI。
而车联网中的为类似于FI的安全消息预留的数据负荷量在3000比特左右，因此，相对于业务数据而言，FI的开销过于庞大，会给系统带来严重的运行负荷。
发明内容
(一)要解决的技术问题
本公开文本实施例提供一种资源碰撞的检测指示方法及装置，用以解决现有技术中存在的FI开销过大给系统带来严重运行负荷的问题。
(二)技术方案
本公开文本实施例提供的具体技术方案如下：
根据本公开文本的一方面，提供了一种资源碰撞的检测指示方法，包括：
第一终端分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，第一终端确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断所述一个业务子帧是否出现碰撞；以及
在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
因此，通过仅发送碰撞指示消息来代替“全子帧的状态占用信息”并实现碰撞的发现。因此能够有效地降低系统信令开销，并能够发现隐藏碰撞终端。
可选的，第一终端确定一个业务子帧被占用，具体包括：
第一终端获得在所述一个业务子帧上的接收信号，并计算接收信号总功率；以及
第一终端确定所述接收信号总功率达到预设的第一门限值时，确定所述一个业务子帧被占用。
可选的，第一终端确定所述接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应所述一个业务子帧记录相应的第一干扰功率；以及判断对应所述一个业务子帧是否记录有占用信息，若是，则保持所述占用信息不变；否则，对应所述一个业务子帧记录空闲信息。
可选的，所述方法进一步包括：
第一终端在所述一个业务子帧上接收第二终端发送的碰撞指示信息，在所述碰撞指示信息解析成功时，分别对应所述碰撞指示信息中记录的每一个其他业务子帧记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+ k*Periodx’，SFi’∈[0，Period-1]”的其他业务子帧记录占用信息；其中，SFc’为所述一个其他业务子帧的序号，SFi’为当前被判定的其他业务子帧的序号，k为整数，Periodx’为占用所述一个其他业务子帧的终端发送业务数据的的业务周期，Period为预设的帧周期。
可选的，第一终端对应一个其他业务子帧记录占用信息，包括：
第一终端对应所述一个其他业务子帧记录占用信息，其中，一个占用信息中包含占用对应的其他业务子帧的终端的标识，并且所述第一终端在确定对应任意一个其他业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个其他业务子帧标记为碰撞。
可选的，第一终端确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果记录所述一个业务子帧是否出现碰撞，包括：
当第一终端确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，获得第二干扰功率；
第一终端判断所述第二干扰功率是否达到预设的第二门限值，若是，则确定所述一个业务子帧出现碰撞；否则，确定所述业务子帧未出现碰撞。
因此，通过干扰功率测量可以发现潜在的碰撞子帧，并有效发现隐藏碰撞终端。
可选的，若第一终端判断所述一个业务子帧出现碰撞，则所述方法进一步包括：
第一终端在所述一个业务子帧上接收第二终端发送的业务数据并进行解析；
若解析成功，则对应所述一个业务子帧记录占用信息、所述第二干扰功率和第一碰撞标识，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息、所述第二干扰功率和所述第一碰撞标识，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期，所述第一碰撞标识中包含所述第二终端的标识；以及
若解析失败，则对应所述一个业务子帧记录占用信息，所述第二干扰功率和第二碰撞标识，其中，所述第二碰撞标识中包含有所述第二干扰功率。
可选的，在第一终端确定所述一个业务子帧的第二干扰功率达到第二门限值，且针对所述第二终端发送的业务数据解析成功之后，所述方法进一步包括：
第一终端根据解析结果判断所述业务数据是否为周期性发送的，若是，则判定需要针对所述一个业务子帧上报碰撞指示信息；否则，判定不需要针对所述一个业务子帧上报碰撞指示信息。
可选的，若第一终端判断所述一个业务子帧未出现碰撞，则所述方法进一步包括：
第一终端在所述一个业务子帧上接收第二终端发送的的业务数据并进行解析；
若解析成功，则对应所述一个业务子帧记录占用信息和所述第二干扰功率，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息和所述第二干扰功率，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期；以及
若解析失败，则对应所述一个业务子帧记录占用信息和所述第二干扰功率。
可选的，在所述业务数据解析成功时，所述方法进一步包括：
第一终端在对应所述一个业务子帧的记录的占用信息中包含所述第二终端的标识，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧记录的占用信息中包含所述第二终端的标识，并且所述第一终端在确定对应任意一个业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个业务子帧标记为碰撞。
因此，在业务数据解析成功时，终端能够在占用消息中包含发送业务数据的终端标识，有利于判断碰撞情况，并消除碰撞的误判。
可选的，在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息，包括：
第一终端从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率最高 的N个业务子帧，并针对所述N个业务子帧中的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成所述碰撞指示信息；或者，
第一终端从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率高于预设的第三门限值的业务子帧，并针对筛选出的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
可选的，第一终端在自身选定的业务子帧上发送业务数据以及所述碰撞指示信息，包括：
第一终端根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧未发生碰撞时，在到达所述业务子帧后，发送业务数据以及自身当前生成的碰撞指示信息。
可选的，所述方法进一步包括：
第一终端根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧发生碰撞时，重新选定自身的业务子帧；其中，第一终端判定自身选定的业务子帧发生碰撞包括：在获得的所有碰撞指示信息中，对应所述自身选定的业务子帧记录有其他终端标识；或者，对应所述自身选定的业务子帧记录的干扰功率高于预设的第四门限值。
根据本公开文本的另一方面，提供了一种资源碰撞的检测指示装置，包括：
判断单元，用于分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断所述一个业务子帧是否出现碰撞；以及
发送单元，用于在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
因此，通过仅发送碰撞指示消息来代替“全子帧的状态占用信息”并实现碰撞的发现。因此能够有效地降低系统信令开销，并能够发现隐藏碰撞终端。
可选的，确定一个业务子帧被占用时，所述判断单元具体用于：
获得在所述一个业务子帧上的接收信号，并计算接收信号总功率；以及
确定所述接收信号总功率达到预设的第一门限值时，确定所述一个业务子帧被占用。
可选的，所述判断单元具体用于确定所述接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应所述一个业务子帧记录相应的第一干扰功率；以及判断对应所述一个业务子帧是否记录有占用信息，若是，则保持所述占用信息不变；否则，对应所述一个业务子帧记录空闲信息。
可选的，所述判断单元进一步用于：
在所述一个业务子帧上接收第二终端发送的碰撞指示信息，在所述碰撞指示信息解析成功时，分别对应所述碰撞指示信息中记录的每一个其他业务子帧记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0，Period-1]”的其他业务子帧记录占用信息；其中，SFc’为所述一个其他业务子帧的序号，SFi’为当前被判定的其他业务子帧的序号，k为整数，Periodx’为占用所述一个其他业务子帧的终端发送业务数据的的业务周期，Period为预设的帧周期。
可选的，对应一个其他业务子帧记录占用信息时，所述判断单元用于：
对应所述一个其他业务子帧记录占用信息，其中，一个占用信息中包含占用对应的其他业务子帧的终端的标识，并且所述第一终端在确定对应任意一个其他业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个其他业务子帧标记为碰撞。
可选的，确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果记录所述一个业务子帧是否出现碰撞时，所述判断单元用于：
确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，获得第二干扰功率；以及
判断所述第二干扰功率是否达到预设的第二门限值，若是，则确定所述一个业务子帧出现碰撞；否则，确定所述业务子帧未出现碰撞。
因此，通过干扰功率测量可以发现潜在的碰撞子帧，并有效发现隐藏碰撞终端。
可选的，若判断所述一个业务子帧出现碰撞，则所述判断单元进一步用于：
在所述一个业务子帧上接收第二终端发送的业务数据并进行解析；
若解析成功，则对应所述一个业务子帧记录占用信息、所述第二干扰功率和第一碰撞标识，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息、所述第二干扰功率和所述第一碰撞标识，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期，所述第一碰撞标识中包含所述第二终端的标识；以及
若解析失败，则对应所述一个业务子帧记录占用信息，所述第二干扰功率和第二碰撞标识，其中，所述第二碰撞标识中包含有所述第二干扰功率。
可选的，确定所述一个业务子帧的第二干扰功率达到第二门限值，且针对所述第二终端发送的业务数据解析成功后，所述判断单元进一步用于：
根据解析结果判断所述业务数据是否为周期性发送的，若是，则判定需要针对所述一个业务子帧上报碰撞指示信息；否则，判定不需要针对所述一个业务子帧上报碰撞指示信息。
可选的，若判断所述一个业务子帧未出现碰撞，则所述判断单元进一步用于：
在所述一个业务子帧上接收第二终端发送的的业务数据并进行解析；
若解析成功，则对应所述一个业务子帧记录占用信息和所述第二干扰功率，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息和所述第二干扰功率，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期；以及
若解析失败，则对应所述一个业务子帧记录占用信息和所述第二干扰功率。
可选的，在所述业务数据解析成功时，所述判断单元进一步用于：
在对应所述一个业务子帧的记录的占用信息中包含所述第二终端的标识，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0， Period-1]”的业务子帧记录的占用信息中包含所述第二终端的标识，并且所述第一终端在确定对应任意一个业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个业务子帧标记为碰撞。
因此，在业务数据解析成功时，终端能够在占用消息中包含发送业务数据的终端标识，有利于判断碰撞情况，并消除碰撞的误判。
可选的，在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息时，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息，所述发送单元用于：
从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率最高的N个业务子帧，并针对所述N个业务子帧中的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成所述碰撞指示信息；或者，
从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率高于预设的第三门限值的业务子帧，并针对筛选出的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
可选的，在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息时，所述发送单元用于：
根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧未发生碰撞时，在到达所述业务子帧后，发送业务数据以及自身当前生成的碰撞指示信息。
可选的，所述方法进一步包括：
重新选择单元，用于根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧发生碰撞时，重新选定自身的业务子帧；其中，第一终端判定自身选定的业务子帧发生碰撞包括：在获得的所有碰撞指示信息中，对应所述自身选定的业务子帧记录有其他终端标识；或者，对应所述自身选定的业务子帧记录的干扰功率高于预设的第四门限值。
根据本公开文本的再一方面，提供了一种资源碰撞的检测指示装置，包括处理器、收发机和存储器，其中：
处理器，用于读取存储器中的程序，执行下列过程：
分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其 中，每到达一个业务子帧，确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断所述一个业务子帧是否出现碰撞；以及在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
收发机，用于在处理器的控制下接收和发送数据。
可选的，确定一个业务子帧被占用时，处理器具体用于：
获得在所述一个业务子帧上的接收信号，并计算接收信号总功率；
确定所述接收信号总功率达到预设的第一门限值时，确定所述一个业务子帧被占用。
可选的，处理器具体用于确定所述接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应所述一个业务子帧记录相应的第一干扰功率；以及判断对应所述一个业务子帧是否记录有占用信息，若是，则保持所述占用信息不变；否则，对应所述一个业务子帧记录空闲信息。
可选的，处理器进一步用于：
在所述一个业务子帧上接收第二终端发送的碰撞指示信息，在所述碰撞指示信息解析成功时，分别对应所述碰撞指示信息中记录的每一个其他业务子帧记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0，Period-1]”的其他业务子帧记录占用信息；其中，SFc’为所述一个其他业务子帧的序号，SFi’为当前被判定的其他业务子帧的序号，k为整数，Periodx’为占用所述一个其他业务子帧的终端发送业务数据的的业务周期，Period为预设的帧周期。
可选的，对应一个其他业务子帧记录占用信息时，处理器用于：
对应所述一个其他业务子帧记录占用信息，其中，一个占用信息中包含占用对应的其他业务子帧的终端的标识，并且所述第一终端在确定对应任意一个其他业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个其他业务子帧标记为碰撞。
可选的，确定一个业务子帧被占用时，基于接收信号进行干扰测量，并 根据测量结果记录所述一个业务子帧是否出现碰撞时，处理器用于：
确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，获得第二干扰功率；以及
判断所述第二干扰功率是否达到预设的第二门限值，若是，则确定所述一个业务子帧出现碰撞；否则，确定所述业务子帧未出现碰撞。
可选的，若判断所述一个业务子帧出现碰撞，则处理器进一步用于：
在所述一个业务子帧上接收第二终端发送的业务数据并进行解析；
若解析成功，则对应所述一个业务子帧记录占用信息、所述第二干扰功率和第一碰撞标识，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息、所述第二干扰功率和所述第一碰撞标识，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期，所述第一碰撞标识中包含所述第二终端的标识；以及
若解析失败，则对应所述一个业务子帧记录占用信息，所述第二干扰功率和第二碰撞标识，其中，所述第二碰撞标识中包含有所述第二干扰功率。
可选的，确定所述一个业务子帧的第二干扰功率达到第二门限值，且针对所述第二终端发送的业务数据解析成功后，处理器进一步用于：
根据解析结果判断所述业务数据是否为周期性发送的，若是，则判定需要针对所述一个业务子帧上报碰撞指示信息；否则，判定不需要针对所述一个业务子帧上报碰撞指示信息。
可选的，若判断所述一个业务子帧未出现碰撞，则处理器进一步用于：
在所述一个业务子帧上接收第二终端发送的的业务数据并进行解析；
若解析成功，则对应所述一个业务子帧记录占用信息和所述第二干扰功率，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息和所述第二干扰功率，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期；以及
若解析失败，则对应所述一个业务子帧记录占用信息和所述第二干扰功率。
可选的，在所述业务数据解析成功时，处理器进一步用于：
在对应所述一个业务子帧的记录的占用信息中包含所述第二终端的标识，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧记录的占用信息中包含所述第二终端的标识，并且所述第一终端在确定对应任意一个业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个业务子帧标记为碰撞。
可选的，在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息时，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息，处理器用于：
从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率最高的N个业务子帧，并针对所述N个业务子帧中的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成所述碰撞指示信息；或者，
从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率高于预设的第三门限值的业务子帧，并针对筛选出的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
可选的，在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息时，处理器用于：
根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧未发生碰撞时，在到达所述业务子帧后，发送业务数据以及自身当前生成的碰撞指示信息。
可选的，所述资源碰撞的检测指示装置进一步包括：
处理器，用于根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧发生碰撞时，重新选定自身的业务子帧；其中，第一终端判定自身选定的业务子帧发生碰撞包括：在获得的所有碰撞指示信息中，对应所述自身选定的业务子帧记录有其他终端标识；或者，对应所述自身选定的业务子帧记录的干扰功率高于预设的第四门限值。
其中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器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。收发机可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器负责管理总线架构和通常的处理，存储器可以存储处理器在执行操作时所使用的数据。
附图说明
为了更清楚地说明本公开文本实施例或现有技术中的技术方案，下面将对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文本的一些实施例，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为本公开文本实施例中资源碰撞的检测指示的概述流程图；
图2A为本公开文本实施例中终端时隙资源使用情况示意图；
图2B为本公开文本实施例中终端空间实际分布示意图；
图3为本公开文本实施例中资源碰撞的检测指示的结构示意图；以及
图4为本公开文本实施例中资源碰撞的检测指示的实体装置示意图。
具体实施方式
下面结合附图和实施例，对本公开文本的具体实施方式做进一步描述。以下实施例仅用于说明本公开文本，但不用来限制本公开文本的范围。
为使本公开文本实施例的目的、技术方案和优点更加清楚，下面将结合本公开文本实施例的附图，对本公开文本实施例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文本的一部分实施例，而不是全部的实施例。基于所描述的本公开文本的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开文本保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开文本所属领域内具有一般技能的人士所理解的通常意义。本公开文本专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或 者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
下面将结合本公开文本实施例中的附图，对本公开文本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公开文本一部分实施例，而不是全部的实施例。基于本公开文本中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开文本保护的范围。
为了解决现有技术中FI开销过大给系统带来严重运行负荷的问题，本公开文本的各个实施例提出了一种资源碰撞的检测指示方法及装置。该方法为：第一终端分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，第一终端确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断一个业务子帧是否出现碰撞；在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及碰撞指示信息，其中，碰撞指示信息中包含有第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
下面结合附图对本公开文本优选的实施方式进行详细说明。
在本公开文本的各个实施例中，当某个终端注册至网络后，需要先监听一个完整的帧周期(也可称为观测周期)，然后从空闲资源中选择一个业务子帧占用，用来发送业务数据，其中，可以随机选择一个业务子帧占用，也可以在空闲资源中选择干扰功率最小的业务子帧占用。在之后的帧周期中，如果终端占用的业务子帧未发生碰撞，则终端不会主动放弃所占用的业务子帧，并一直使用所占用的业务子帧发送业务数据。
在后续传输业务数据的过程中，终端通过监听一个完整的观测周期，基于接收的信号及物理层测量构建完整的状态表，终端通过上一个观测周期的监听结果判定自身占用的业务子帧是否发生碰撞，若是，在下一个帧周期中重新选择自身占用的业务子帧，否则，在下一个帧周期中保持当前占用的业务子帧。
其中，终端发送业务数据的周期包含于观测周期中，不同终端发送业务数据的周期可能相同或不同，观测周期须为所有终端发送业务数据的周期的整数倍，即，观测周期为所有终端发送业务数据的周期的最小公倍数。这样能够保证终端能够在一个观测周期中监听到所有其他终端的信号。
表1
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S             S S            
定时 7 7             7 7            
干扰 N0 N1             N0              
发送   N1                            
如表1所示，表1为终端针对子帧0维护的时频资源使用状态表(以下简称状态表)。其中，在状态位中，S表示占用，I表示空闲。在定时位中，记录了用于指示占用的有效时间，如果在清零前没有被重置，则将相应子帧恢复空闲状态，如果在清零前被重置，则将相应子帧保持占用状态。重置的时间(Tx)是在相应子帧上发送业务数据的最小周期的整数倍。在干扰位中，记录了针对相应子帧计算的干扰功率；例如，Nx表示在子帧x计算的干扰值。另外，在发送位中，Ni(i＝0、1......)表示干扰值。
参阅图1所示，在第一终端接入系统后，第一终端针对资源碰撞的检测指示具体过程为：
步骤100：第一终端分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，第一终端确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断一个业务子帧是否出现碰撞。
步骤110：在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及碰撞指示信息，其中，碰撞指示信息中包含有第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
在第一终端执行步骤100时，第一终端分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每到达一个业务子帧，第一终端 判断这个业务子帧是否被占用。
假设第一终端占用子帧6，以对非自身占用的子帧0进行监听为例，第一终端通过获得在子帧0上的接收信号，并计算接收信号总功率，具体分为两种情况：
第一种情况：第一终端确定接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应子帧0记录相应的第一干扰功率；以及判断对应子帧0是否记录有占用信息，若是，则保持占用信息不变；否则，对应子帧0记录空闲信息；其中，占用信息用符号S表示，空闲信息用符号I表示。
此外，当接收信号总功率未达到预设的第一门限值时，第一干扰功率Si＝接收信号总功率St。
第二种情况：第一终端确定接收信号总功率达到预设的第一门限值时，确定子帧0被占用。
为了保证第一终端接收监听结果的时效性，本公开文本实施例中还为每个业务子帧设置了定时器，定时器的值为Tx，Tx是在相应子帧上发送业务数据的最小周期的整数倍。
当第一终端确定业务子帧0的接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应子帧0记录相应的第一干扰功率，接着第一终端判断针对子帧0记录为初始信息或空闲信息时，则记录子帧0为空闲信息I。在上述操作结束后，第一终端将所有业务子帧的定时器的非0数值减1，并将数值小于0的业务子帧的状态位记录为空闲信息I。
而当第一终端确定接收信号总功率达到预设的第一门限值时，确定子帧0被占用，则保持占用信息不变，仍然为占用信息S。在上述操作结束后，第一终端也需要将所有业务子帧的定时器的非0数值减1，并将数值小于0的业务子帧的状态位记录为空闲信息I。
进一步地，第一终端在监听子帧0的过程中，也可以接收占用子帧0的第二终端发送的碰撞指示信息，在碰撞指示信息解析成功时，第一终端可以分别对应碰撞指示信息中记录的每一个其他业务子帧(非子帧0)记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0， Period-1]”的其他业务子帧记录占用信息，即第一终端对应第二终端发送的碰撞指示信息中指示的其他业务子帧，以及碰撞指示信息中未指示却符合上述公式的其他业务子帧，记录占用信息(即对应这两部分不同于子帧0的其他业务子帧均需要记录占用信息)；其中，SFc’为一个其他业务子帧的序号，SFi’为当前被判定的其他业务子帧的序号，k为整数，Periodx’为占用一个其他业务子帧的终端发送业务数据的的业务周期，Period为预设的帧周期。
进一步地，第一终端可以在对应上述两部分其他业务子帧记录的占用信息中包含占用符号S，或者，包含占用对应的其他业务子帧的终端的标识，采用后一方式时，第一终端在确定对应任意一个其他业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将任意一个其他业务子帧标记为碰撞。
例如，第一终端在子帧0上接收第二终端发送的碰撞指示信息，在碰撞指示信息解析成功时，假设碰撞指示信息中仅包括一个碰撞消息，该碰撞消息指示子帧1被第三终端占用，则第一终端针对子帧1记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0，Period-1]”的其他业务子帧记录占用信息，假设占用子帧1的第三终端的发送业务数据的周期为8个子帧，帧周期为16个子帧，则根据公式9＝1+1*8，即子帧9符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0，Period-1]”。因此，第一终端针对子帧1和子帧9均记录记录占用信息。
进一步地，假设第一终端在对应子帧1记录的最新的占用信息中包含了第三终端的标识(如，STI3)，而第一终端上一次对应子帧1记录的原占用信息中包含了第五终端的标识(STI5)，即最新的占用信息和原占用信息不一致，此时，第一终端将子帧1标记为碰撞，如，将子帧1对应的状态表中的发送位作为碰撞标识记为第三终端的标识。
进一步地，第一终端确定子帧0被占用后，可以基于接收信号进行干扰测量，并根据测量结果继续判断子帧0是否出现碰撞。较佳的，在本公开文本实施例中，以干扰功率作为是否碰撞的判断标准，事实上是对子帧0的潜在碰撞可能性进行判断。
具体的，子帧0上的干扰功率可以采用公式Si＝St/(SNR+1)计算，接收信 号总功率St。其中，信噪比(Signal to Noise Ratio，SNR)有两种计算方法，即基于数据估计的SNR和基于信道估计的SNR，SNR取两者中的较小值，两种SNR计算方法均为现有方法，在此不再赘述。
本公开文本实施例中，第一终端在确定子帧0被占用时，基于接收信号进行干扰测量，获得第二干扰功率。第一终端判断第二干扰功率是否达到预设的第二门限值，若是，则确定子帧0出现碰撞；否则，确定子帧0未出现碰撞，即若第二干扰功率达到预设的第二门限值，则说明子帧0的碰撞可能性较大，为潜在碰撞子帧，否则，确定子帧0未出现碰撞，子帧0的碰撞可能性较小。
一方面，若第一终端判断子帧0出现碰撞，进一步地，第一终端在子帧0上接收第二终端发送的业务数据并进行解析，根据业务数据是否解析成功，可以具体分为两种情况：
第一种情况：第一终端针对第二终端的业务数据解析成功。
第一终端对应子帧0记录占用信息、第二干扰功率和第一碰撞标识，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息、第二干扰功率和第一碰撞标识。其中，SFc为子帧0的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为第二终端发送业务数据的周期，Period为预设的帧周期，第一碰撞标识中包含第二终端的标识。
例如，参阅表2所示，表2中的子帧位记录子帧号，状态位记录占用信息，干扰位记录第二干扰功率，发送位记录第一碰撞标识。第一终端针对子帧0记录占用信息S，第二干扰功率N0，以及第一碰撞标识2，这里的第一碰撞标识2是指第二终端的标识，即STI2，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息S、第二干扰功率N0和第一碰撞标识2。假设第二终端的发送业务数据的周期为8个子帧，帧周期为16个子帧，则根据公式8＝0+1*8，即子帧8符合公式，第一终端针对子帧8记录占用信息S，第二干扰功率N0，以及第一碰撞标识2。此外，还需将定时位设置为最大值Tx，这里以Tx＝7为例。
表2
子帧 0 1......7 8 9......15
状态 S ...... S ......
定时 7 ...... 7 ......
干扰 N0 ...... N0 ......
发送 2 ...... 2 ......
此外，第一终端确定子帧0的第二干扰功率达到第二门限值，且针对第二终端发送的业务数据解析成功后，第一终端需进一步根据解析结果(如，碰撞消息中的周期位)判断业务数据是否为周期性发送的，若是，则确定需要针对子帧0上报碰撞指示信息，并记录第一碰撞标识；否则，确定不需要针对子帧0上报碰撞指示信息。
第二种情况：第一终端针对第二终端的业务数据解析失败。
第一终端对应子帧0记录占用信息，第二干扰功率和第二碰撞标识，其中，第二碰撞标识中包含有第二干扰功率。
例如，参阅表3所示，表3中的子帧位记录子帧号，状态位记录占用信息，干扰位记录第二干扰功率，发送位记录第二碰撞标识。第一终端针对子帧0记录占用信息S，第二干扰功率N0，以及第二碰撞标识N0，这里的第二碰撞标识是指第二干扰功率N0，此外，还需将定时位设置为最大值Tx，这里以Tx＝7为例。
表3
子帧 0 1......15
状态 S ......
定时 7 ......
干扰 N0 ......
发送 N0 ......
另一方面，若第一终端判断子帧0未出现碰撞，进一步地，第一终端在子帧0上接收第二终端发送的的业务数据并进行解析，根据业务数据是否解析成功，又可以具体分为两种情况：
第一种情况：第一终端针对第二终端的业务数据解析成功。
第一终端对应子帧0记录占用信息和第二干扰功率，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息和第二干扰功率。其中，SFc为子帧0的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为第二终端发送业务数据的周期，Period为预设的帧周期；
例如，第一终端针对子帧0记录占用信息S，第二干扰功率N0，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息S、第二干扰功率N0。假设第二终端的发送业务数据的周期为8个子帧，帧周期为16个子帧，则根据公式8＝0+1*8，即子帧8符合公式，第一终端针对子帧8记录占用信息S，第二干扰功率N0。此外，还需将定时位设置为最大值Tx，这里以Tx＝7为例。
第二种情况：第一终端针对第二终端的业务数据解析失败。
此时，第一终端对应子帧0记录占用信息和第二干扰功率。例如，第一终端针对子帧0记录占用信息S，第二干扰功率N0。
基于上述碰撞判断场景，在通过干扰功率对子帧0的潜在碰撞可能性进行判定后，进一步地，若第一终端在子帧0上针对业务数据解析成功，还可以再次对子帧0的碰撞状态进行判断。
具体的，第一终端可以根据业务数据的解析结果获知占用子帧0的第二终端的标识，并在对应子帧0记录的占用信息中包含第二终端的标识，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧记录的占用信息中包含第二终端的标识，并且第一终端在确定对应上述业务子帧中的任意一个业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将该任意一个业务子帧标记为碰撞。
例如，第一终端在对应子帧0的记录的占用信息中包含第二终端的标识(如，STI2)，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧记录的占用信息中包含第二终端的标识(如，STI2)，假设第二终端的发送业务数据的周期为8个子帧，帧周期为16个子帧，则根据公式8＝0+1*8，即子帧8符合公式，第一终端针对子帧8记录占用信息中也包含第二终端的标识(如，STI2)。
因此，第一终端在对应子帧0和子帧8记录的占用信息中均包含有第二终端的标识(如，STI2)。若第一终端确定上一次对应子帧0记录的原占用信息中包含第七终端的标识(如，STI7)，即最新的占用信息和原占用信息不一致，此时将子帧0标记为碰撞，并记录第一碰撞标识2，这里的第一碰撞标识2是指第二终端的标识，即STI2。
此外，还需指出，在之前基于干扰功率对子帧0的潜在碰撞可能性进行判断的过程中，若已判定子帧0出现碰撞，而通过对应子帧0记录的原占用信息和最新的占用信息的比较再次判定子帧0出现碰撞，则第一终端可以更为确定子帧0出现碰撞。而在之前基于干扰功率对子帧0的潜在碰撞可能性进行判断的过程中，若已判定子帧0未出现碰撞，而通过对应子帧0记录的原占用信息和最新的占用信息的比较却判定子帧0出现碰撞，则第一终端可以重新判定子帧0出现碰撞。
在执行步骤110时，即在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，具体可以采用但不限于以下两种方法：
第一种方法为：第一终端从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率最高的N个业务子帧，并针对N个业务子帧中的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
碰撞指示信息是由至少一条碰撞消息依次串行而成。例如，假设N＝2，如表4所示，在包含有两条碰撞消息的碰撞指示信息中，子帧位，用于记录发生碰撞的子帧的序号；译码位，用于记录业务数据是否解析成功，其中，0代表业务数据解析成功，1代表数据业务数据解析失败；STI/N位，用8比特表示，在业务数据解析成功时，用于记录占用子帧的终端的标识，在业务数据解析失败时，用于记录干扰功率；周期位，用于记录占用子帧的终端发送业务数据的周期，其中，发送业务数据的周期有2种，分别为8个子帧和16个子帧，用1比特表示，其中，0代表周期8，1代表周期16。例如，假设子帧6和子帧14为干扰功率最大2个子帧(即N＝2)，且子帧6上的业务数据解析成功，子帧14上的业务数据解析失败，则第一终端针对子帧6和子帧14生成的碰撞指示信息的内容为如表4所示：
表4
子帧 译码 STI/N 周期 子帧号 译码 STI/N 周期
6 0 9 1 14 1 N14 1
此外，为了进一步压缩FI的开销，即压缩碰撞指示信息的内容，子帧的序号可以用相对偏移量代替，即相对偏移量等于承载碰撞指示信息的子帧的序号减去被判定为发生碰撞的子帧的序号，结合不同的帧周期，相对偏移量也可以使用不同的比特数指示。例如，一个子帧的长度是1ms，它所在的帧周期为1s，其中，1s＝1000ms，此时如果需要指示具体的相对偏移量，则需要一个能够标识0～999的数，由于210＝1024，所以帧周期为1s时可以用10个比特指示相对偏移量。同理可知，帧周期为0.5s需要9比特指示，帧周期为0.1s只需要7比特指示。
第二种方法为：第一终端从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率高于预设的第三门限值的业务子帧，并针对筛选出的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
从节省信令开销的角度，当第一终端发送碰撞指示信息时，可将干扰功率Nx使用的比特数进行压缩，最低是0比特，即仅上报业务子帧的序号和占用业务子帧的终端的标识即可，或者，仅上报业务子帧的序号和业务子帧的译码位，就意味着第二干扰功率高于预设的第三门限值，碰撞发生。当在译码位指示业务数据解析失败时，该业务子帧对应的周期位上可以不发送数据。
基于上述各实施例中，进一步地，第一终端还根据在帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧是否发生碰撞，确定未发生碰撞时，在到达自身选定的业务子帧后，发送业务数据以及自身当前生成的碰撞指示信息。
为了降低碰撞指示信息的发送开销，碰撞指示信息可以与业务数据在同一个子帧中发送也可以在指定的单独子帧发送。例如，碰撞指示信息的最大发送周期为1s。
另一方面。第一终端根据在帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧发生碰撞时，需要重新选定自身的业务子帧。
其中，第一终端判定自身选定的业务子帧发生碰撞至少包括但不限于以下两种方法：
其一，第一终端获知自身获得的所有碰撞指示信息中，对应自身选定的业务子帧记录有其他终端标识，则判定自身选定的业务子帧发生碰撞，重新选定自身的业务子帧。
其二，第一终端对应自身选定的业务子帧记录的干扰功率高于预设的第四门限值时，则判定自身选定的业务子帧发生碰撞，重新选定自身的业务子帧。作为非限定性示例，这里的第四门限值可以与第二门限值相同。
下面通过一个具体的应用场景对上述实施例作出进一步详细说明。
参阅图2A为本公开文本实施例中终端时隙资源使用情况示意图，图2B为本公开文本实施例中终端空间实际分布示意图，图2A中给出的最小的发送业务数据的周期为8个子帧，帧周期是16个子帧。下面通过表5至表20分别描述了终端6的状态表更新过程，假设此时终端6还未选择定自身占用的业务子帧，其中，终端9和终端12的发送业务数据的周期是16个子帧，其他终端的发送业务数据的周期是8个子帧。
如表5所示，在到达子帧0时，终端6判断子帧0未出现碰撞，子帧0为占用状态，且终端6针对子帧0发送的业务数据解析成功，因此，子帧0和子帧8均在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧0计算的干扰功率，N0；发送位为空。
表5：子帧0
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S               S              
定时 7               7              
干扰 N0               N0              
发送                                
如表6所示，在到达子帧1时，终端6判断子帧1未出现碰撞，子帧1为占用状态，且终端6针对子帧1发送的业务数据解析成功，因此，子帧1和子帧9均在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧1计算的干扰功率，N1；发送位为空。此外，除子帧1和子帧9外的定时器减1。
表6：子帧1
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S             S S            
定时 6 7             6 7            
干扰 N0 N1             N0 N1            
发送                                
如表7所示，在到达子帧2时，终端6判断子帧2未出现碰撞，子帧2为占用状态，且终端6针对子帧2发送的业务数据解析失败，因此，子帧1在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧2计算的干扰功率，N2；发送位为空。此外，除子帧2外的定时器减1。
表7：子帧2
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S           S S            
定时 5 6 7           5 6            
干扰 N0 N1 N2           N0              
发送                                
如表8所示，在到达子帧3时，终端6判断子帧3出现碰撞，子帧3为占用状态，且终端6针对子帧3发送的业务数据解析失败，因此，子帧3在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧3计算的干扰功率，N3；发送位为N3。此外，除子帧3外的定时器减1。
表8：子帧3
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S         S S            
定时 4 5 6 7         4 5            
干扰 N0 N1 N2 N3         N0 N1            
发送       N3                        
如表9所示，在到达子帧4时，终端6判断子帧4空闲，因此，子帧4在状态位中，记录I，表示空闲；在干扰位中，记录了针对子帧4计算的干扰功率，N4。此外，除子帧4外的定时器减1。
表9：子帧4
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I       S S            
定时 3 4 5 6         3 4            
干扰 N0 N1 N2 N3 N4       N0 N1            
发送       N3                        
如表10所示，在到达子帧5时，终端6判断子帧5空闲，因此，子帧5在状态位中，记录I，表示空闲；在干扰位中，记录了针对子帧5计算的干扰功率，N5。此外，除子帧5外的定时器减1。
表10：子帧5
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I     S S            
定时 2 3 4 5         2 3            
干扰 N0 N1 N2 N3 N4 N5     N0 N1            
发送       N3                        
如表11所示，在到达子帧6时，终端6判断子帧6出现碰撞，子帧6为占用状态，且终端6针对子帧6发送的业务数据解析成功，因此，子帧6在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，15；在干扰位中，记录了针对子帧6计算的干扰功率，N6；发送位为记 录9，表示终端9占用了子帧6，为潜在碰撞子帧。由于终端9的发送业务数据的周期为16，因此，没有符合公式的其他子帧。此外，除子帧6外的定时器减1。
表11：子帧6
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S   S S            
定时 1 2 3 4     15   1 2            
干扰 N0 N1 N2 N3 N4 N5 N6   N0 N1            
发送       N3     9                  
如表12所示，在到达子帧7时，终端6判断子帧7空闲，因此，子帧7在状态位中，记录I，表示空闲；在干扰位中，记录了针对子帧7计算的干扰功率，N7。此外，除子帧7外的定时器减1。
表12：子帧7
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S I S S            
定时 0 1 2 3     14   0 1            
干扰 N0 N1 N2 N3 N4 N5 N6 N7 N0 N1            
发送       N3     9                  
如表13所示，在到达子帧8时，从终端6判断子帧8未出现碰撞，子帧8为占用状态，且终端6针对子帧8发送的业务数据解析成功，因此，子帧0和子帧8均在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧8计算的干扰功率，N8；发送位为空。此外，除子帧8和子帧0外的定时器减1。
表13：子帧8
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S I S S            
定时 7 0 1 2     13   7 0            
干扰 N8 N1 N2 N3 N4 N5 N6 N7 N8 N1            
发送       N3     9                  
如表14所示，在到达子帧9时，终端6判断子帧9未出现碰撞，子帧9为占用状态，且终端6针对子帧9发送的业务数据解析成功，因此，子帧1和子帧9均在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧9计算的干扰功率，N9；发送位为空。此外，除子帧9和子帧1外的定时器减1。
表14：子帧9
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S I S S            
定时 6 7 0 1     12   6 7            
干扰 N8 N9 N2 N3 N4 N5 N6 N7 N8 N9            
发送       N3     9                  
如表15所示，在到达子帧10时，终端6判断子帧10未出现碰撞，子帧10为占用状态，且终端6针对子帧10发送的业务数据解析成功，因此，子帧10和子帧2均在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧10计算的干扰功率，N10；发送位为空。除子帧10和子帧2外的定时器减1。
表15：子帧10
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S I S S S          
定时 5 6 7 0     11   5 6 7          
干扰 N8 N9 N10 N3 N4 N5 N6 N7 N8 N9 N10          
发送       N3     9                  
如表16所示，在到达子帧11时，终端6判断子帧11未出现碰撞，子帧11为占用状态，且终端6针对子帧11发送的业务数据解析成功，因此，子帧11和子帧3均在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧11计算的干扰功率，N11；发送位为空。除子帧11和子帧3外的定时器减1。
表16：子帧11
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S I S S S S        
定时 4 5 6 7     10   4 5 6 7        
干扰 N8 N9 N10 N11 N4 N5 N6 N7 N8 N9 N10 N11        
发送             9                  
如表17所示，在到达子帧12时，终端6判断子帧12空闲，因此，子帧12在状态位中，记录I，表示空闲；在干扰位中，记录了针对子帧12计算的干扰功率，N12。此外，除子帧12外的定时器减1。
表17：子帧12
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S I S S S S I      
定时 3 4 5 6     9   3 4 5 6        
干扰 N8 N9 N10 N11 N4 N5 N6 N7 N8 N9 N10 N11 N12      
发送             9                  
如表18所示，在到达子帧13时，终端6判断子帧13空闲，因此，子帧13在状态位中，记录I，表示空闲，在干扰位中，记录了针对子帧13计算的干扰功率，N13。此外，除子帧13外的定时器减1。
表18：子帧13
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S I S S S S I I    
定时 2 3 4 5     8   2 3 4 5        
干扰 N8 N9 N10 N11 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13    
发送             9                  
如表19所示，在到达子帧14时，终端6判断子帧14未出现碰撞，子帧14为占用状态，且终端6针对子帧14发送的业务数据解析成功，因此，子帧14在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，15；在干扰位中，记录了针对子帧14计算的干扰功率，N14；发 送位为空。除子帧14外的定时器减1。终端6解析到的是终端12发送的业务数据，而终端12的发送业务数据的业务周期为16个子帧。
表19：子帧14
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S I S S S S I I S  
定时 1 2 3 4     7   1 2 3 4     15  
干扰 N8 N9 N10 N11 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14  
发送             9                  
如表20所示，在到达子帧15时，终端6判断子帧15未出现碰撞，子帧15为占用状态，且终端6针对子帧15发送的业务数据解析成功，因此，子帧15和子帧7均在状态位中，记录S，表示占用；在定时位中，记录了用于指示占用的有效时间，7；在干扰位中，记录了针对子帧15计算的干扰功率，N15；发送位为空。除子帧15和子帧7外的定时器减1。
表20：子帧15
子帧 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
状态 S S S S I I S S S S S S I I S S
定时 0 1 2 3     6 7 0 1 2 3     14 7
干扰 N8 N9 N10 N11 N4 N5 N6 N15 N8 N9 N10 N11 N12 N13 N14 N15
发送             9                  
须知这里并未考虑终端针对各个子帧发送的碰撞指示信息更新状态表的情形，只针对各个子帧的干扰功率判断对应子帧是否为潜在的碰撞子帧。
终端6根据在一个完整的帧周期的监听结果，从空闲资源中选择一个业务子帧占用，用来发送业务数据。
参阅图3所示，一种资源碰撞的检测指示装置，包括：
判断单元30，用于分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断一个业务子帧是否出现碰撞；以及
发送单元31，用于在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及碰撞指示信息，其中，碰撞指示信息中包含有第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
可选的，确定一个业务子帧被占用时，判断单元30具体用于：
获得在一个业务子帧上的接收信号，并计算接收信号总功率；
确定接收信号总功率达到预设的第一门限值时，确定一个业务子帧被占用。
可选的，判断单元30具体用于确定接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应一个业务子帧记录相应的第一干扰功率；以及判断对应一个业务子帧是否记录有占用信息，若是，则保持占用信息不变；否则，对应一个业务子帧记录空闲信息。
可选的，判断单元30进一步用于：
在一个业务子帧上接收第二终端发送的碰撞指示信息，在碰撞指示信息解析成功时，分别对应碰撞指示信息中记录的每一个其他业务子帧记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0，Period-1]”的其他业务子帧记录占用信息；其中，SFc’为一个其他业务子帧的序号，SFi’为当前被判定的其他业务子帧的序号，k为整数，Periodx’为占用一个其他业务子帧的终端发送业务数据的的业务周期，Period为预设的帧周期。
可选的，对应一个其他业务子帧记录占用信息时，判断单元30用于：
对应一个其他业务子帧记录占用信息，其中，一个占用信息中包含占用对应的其他业务子帧的终端的标识，并且第一终端在确定对应任意一个其他业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将任意一个其他业务子帧标记为碰撞。
可选的，确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果记录一个业务子帧是否出现碰撞时，判断单元30用于：
确定一个业务子帧被占用时，基于接收信号进行干扰测量，获得第二干扰功率；以及
判断第二干扰功率是否达到预设的第二门限值，若是，则确定一个业务子帧出现碰撞；否则，确定业务子帧未出现碰撞。
可选的，若判断一个业务子帧出现碰撞，则判断单元30进一步用于：
在一个业务子帧上接收第二终端发送的业务数据并进行解析；
若解析成功，则对应一个业务子帧记录占用信息、第二干扰功率和第一碰撞标识，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息、第二干扰功率和第一碰撞标识，其中，SFc为一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为第二终端发送业务数据的周期，Period为预设的帧周期，第一碰撞标识中包含第二终端的标识；以及
若解析失败，则对应一个业务子帧记录占用信息，第二干扰功率和第二碰撞标识，其中，第二碰撞标识中包含有第二干扰功率。
可选的，确定一个业务子帧的第二干扰功率达到第二门限值，且针对第二终端发送的业务数据解析成功后，判断单元30进一步用于：
根据解析结果判断业务数据是否为周期性发送的，若是，则判定需要针对一个业务子帧上报碰撞指示信息；否则，判定不需要针对一个业务子帧上报碰撞指示信息。
可选的，若判断一个业务子帧未出现碰撞，则判断单元30进一步用于：
在一个业务子帧上接收第二终端发送的的业务数据并进行解析；
若解析成功，则对应一个业务子帧记录占用信息和第二干扰功率，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息和第二干扰功率，其中，SFc为一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为第二终端发送业务数据的周期，Period为预设的帧周期；以及
若解析失败，则对应一个业务子帧记录占用信息和第二干扰功率。
可选的，在业务数据解析成功时，判断单元30进一步用于：
在对应一个业务子帧的记录的占用信息中包含第二终端的标识，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧记录的占用信息中包含第二终端的标识，并且第一终端在确定对应任意 一个业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将任意一个业务子帧标记为碰撞。
可选的，在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息时，其中，碰撞指示信息中包含有第一终端判定出现碰撞的至少一个业务子帧的碰撞消息，发送单元31用于：
从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率最高的N个业务子帧，并针对N个业务子帧中的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息；或者，
从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率高于预设的第三门限值的业务子帧，并针对筛选出的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
可选的，在下一个自身选定的业务子帧上发送业务数据以及碰撞指示信息时，发送单元31用于：
根据在帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧未发生碰撞时，在到达业务子帧后，发送业务数据以及自身当前生成的碰撞指示信息。
可选的，进一步包括：
重新选择单元32，用于根据在帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧发生碰撞时，重新选定自身的业务子帧；其中，第一终端判定自身选定的业务子帧发生碰撞包括：在获得的所有碰撞指示信息中，对应自身选定的业务子帧记录有其他终端标识；或者，对应自身选定的业务子帧记录的干扰功率高于预设的第四门限值。
参阅图4所示，一种资源碰撞的检测指示装置，包括处理器400、收发机410和存储器420，其中：
处理器400，用于读取存储器中的程序，执行下列过程：
分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断一个业务子帧是否出现碰撞；以及在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一 个自身选定的业务子帧上发送业务数据以及碰撞指示信息，其中，碰撞指示信息中包含有第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
收发机410，用于在处理器的控制下接收和发送数据。
可选的，确定一个业务子帧被占用时，处理器400具体用于：
获得在一个业务子帧上的接收信号，并计算接收信号总功率；
确定接收信号总功率达到预设的第一门限值时，确定一个业务子帧被占用。
可选的，处理器具体用于确定接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应一个业务子帧记录相应的第一干扰功率；以及判断对应一个业务子帧是否记录有占用信息，若是，则保持占用信息不变；否则，对应一个业务子帧记录空闲信息。
可选的，处理器400进一步用于：
在一个业务子帧上接收第二终端发送的碰撞指示信息，在碰撞指示信息解析成功时，分别对应碰撞指示信息中记录的每一个其他业务子帧记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0，Period-1]”的其他业务子帧记录占用信息；其中，SFc’为一个其他业务子帧的序号，SFi’为当前被判定的其他业务子帧的序号，k为整数，Periodx’为占用一个其他业务子帧的终端发送业务数据的的业务周期，Period为预设的帧周期。
可选的，对应一个其他业务子帧记录占用信息时，处理器400用于：
对应一个其他业务子帧记录占用信息，其中，一个占用信息中包含占用对应的其他业务子帧的终端的标识，并且第一终端在确定对应任意一个其他业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将任意一个其他业务子帧标记为碰撞。
可选的，确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果记录一个业务子帧是否出现碰撞时，处理器400用于：
确定一个业务子帧被占用时，基于接收信号进行干扰测量，获得第二干扰功率；
判断第二干扰功率是否达到预设的第二门限值，若是，则确定一个业务 子帧出现碰撞；否则，确定业务子帧未出现碰撞。
可选的，若判断一个业务子帧出现碰撞，则处理器400进一步用于：
在一个业务子帧上接收第二终端发送的业务数据并进行解析；
若解析成功，则对应一个业务子帧记录占用信息、第二干扰功率和第一碰撞标识，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息、第二干扰功率和第一碰撞标识，其中，SFc为一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为第二终端发送业务数据的周期，Period为预设的帧周期，第一碰撞标识中包含第二终端的标识；以及
若解析失败，则对应一个业务子帧记录占用信息，第二干扰功率和第二碰撞标识，其中，第二碰撞标识中包含有第二干扰功率。
可选的，确定一个业务子帧的第二干扰功率达到第二门限值，且针对第二终端发送的业务数据解析成功后，处理器400进一步用于：
根据解析结果判断业务数据是否为周期性发送的，若是，则判定需要针对一个业务子帧上报碰撞指示信息；否则，判定不需要针对一个业务子帧上报碰撞指示信息。
可选的，若判断一个业务子帧未出现碰撞，则处理器400进一步用于：
在一个业务子帧上接收第二终端发送的的业务数据并进行解析；
若解析成功，则对应一个业务子帧记录占用信息和第二干扰功率，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息和第二干扰功率，其中，SFc为一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为第二终端发送业务数据的周期，Period为预设的帧周期；以及
若解析失败，则对应一个业务子帧记录占用信息和第二干扰功率。
可选的，在业务数据解析成功时，处理器400进一步用于：
在对应一个业务子帧的记录的占用信息中包含第二终端的标识，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧记录的占用信息中包含第二终端的标识，并且第一终端在确定对应任意一个业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一 致时，将任意一个业务子帧标记为碰撞。
可选的，在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息时，其中，碰撞指示信息中包含有第一终端判定出现碰撞的至少一个业务子帧的碰撞消息，处理器400用于：
从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率最高的N个业务子帧，并针对N个业务子帧中的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息；或者，
从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率高于预设的第三门限值的业务子帧，并针对筛选出的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
可选的，在下一个自身选定的业务子帧上发送业务数据以及碰撞指示信息时，处理器400用于：
根据在帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧未发生碰撞时，在到达业务子帧后，发送业务数据以及自身当前生成的碰撞指示信息。
可选的，进一步包括：
处理器400，用于根据在帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧发生碰撞时，重新选定自身的业务子帧；其中，第一终端判定自身选定的业务子帧发生碰撞包括：在获得的所有碰撞指示信息中，对应自身选定的业务子帧记录有其他终端标识；或者，对应自身选定的业务子帧记录的干扰功率高于预设的第四门限值。
其中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器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。收发机可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器负责管理总线架构和通常的处理，存储器可以存储处理器在执行操作时所使用的数据。
综上所述，本公开文本实施例中，第一终端分别在一个帧周期中非自身 占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，第一终端确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断一个业务子帧是否出现碰撞；在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及碰撞指示信息。因此能够有效地降低系统信令开销，并能够发现隐藏碰撞终端。
本公开文本实施例中通过仅发送碰撞指示消息来代替“全子帧的状态占用信息”并实现碰撞的发现。在实际系统中发生碰撞的概率是极低的，因而可以有效地降低系统信令开销。
本公开文本实施例中通过干扰功率测量可以发现潜在的碰撞子帧，因此能够有效发现隐藏碰撞终端。且在业务数据解析成功时，终端能够在占用消息中包含发送业务数据的终端标识，有利于判断碰撞情况，并消除碰撞的误判。
此外，本公开文本为了使接收终端能够准确地接收到碰撞指示信息，预定义了碰撞指示消息的格式。当终端基于碰撞指示消息发现自身所占用的子帧出现碰撞时，需要选择新的时频资源发送业务数据。
本领域内的技术人员应明白，本公开文本的实施例可提供为方法、系统、或计算机程序产品。因此，本公开文本可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开文本可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开文本是参照根据本公开文本实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指 定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本公开文本的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开文本范围的所有变更和修改。
显然，本领域的技术人员可以对本公开文本实施例进行各种改动和变型而不脱离本公开文本实施例的精神和范围。这样，倘若本公开文本实施例的这些修改和变型属于本公开文本权利要求及其等同技术的范围之内，则本公开文本也意图包含这些改动和变型在内。

Claims (27)

  1. 一种资源碰撞的检测指示方法，包括：
    第一终端分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，第一终端确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断所述一个业务子帧是否出现碰撞；以及
    在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
  2. 如权利要求1所述的方法，其中，第一终端确定一个业务子帧被占用，包括：
    第一终端获得在所述一个业务子帧上的接收信号，并计算接收信号总功率；以及
    当第一终端确定所述接收信号总功率达到预设的第一门限值时，确定所述一个业务子帧被占用。
  3. 如权利要求2所述的方法，其中，当第一终端确定所述接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应所述一个业务子帧记录相应的第一干扰功率；以及判断对应所述一个业务子帧是否记录有占用信息，若是，则保持所述占用信息不变；否则，对应所述一个业务子帧记录空闲信息。
  4. 如权利要求2或3所述的方法，进一步包括：
    第一终端在所述一个业务子帧上接收第二终端发送的碰撞指示信息，在所述碰撞指示信息解析成功时，分别对应所述碰撞指示信息中记录的每一个其他业务子帧记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0，Period-1]”的其他业务子帧记录占用信息；其中，SFc’为所述一个其他业务子帧的序号，SFi’为当前被判定的其他业务子帧的序号，k为整数，Periodx’为占用所述一个其他业务子帧的终端发送业务数据的的业 务周期，Period为预设的帧周期。
  5. 如权利要求4所述的方法，其中，第一终端对应一个其他业务子帧记录占用信息，包括：
    第一终端对应所述一个其他业务子帧记录占用信息，其中，一个占用信息中包含占用对应的其他业务子帧的终端的标识，并且所述第一终端在确定对应任意一个其他业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个其他业务子帧标记为碰撞。
  6. 如权利要求1至5中任一项所述的方法，其中，当第一终端确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果记录所述一个业务子帧是否出现碰撞，包括：
    第一终端确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，获得第二干扰功率；以及
    第一终端判断所述第二干扰功率是否达到预设的第二门限值，若是，则确定所述一个业务子帧出现碰撞；否则，确定所述业务子帧未出现碰撞。
  7. 如权利要求6所述的方法，其中，若第一终端判断所述一个业务子帧出现碰撞，则所述方法进一步包括：
    第一终端在所述一个业务子帧上接收第二终端发送的业务数据并进行解析；
    若解析成功，则对应所述一个业务子帧记录占用信息、所述第二干扰功率和第一碰撞标识，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息、所述第二干扰功率和所述第一碰撞标识，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期，所述第一碰撞标识中包含所述第二终端的标识；以及
    若解析失败，则对应所述一个业务子帧记录占用信息，所述第二干扰功率和第二碰撞标识，其中，所述第二碰撞标识中包含有所述第二干扰功率。
  8. 如权利要求7所述的方法，其中，在第一终端确定所述一个业务子帧的第二干扰功率达到第二门限值，且针对所述第二终端发送的业务数据解析成功后，所述方法进一步包括：
    第一终端根据解析结果判断所述业务数据是否为周期性发送的，若是，则判定需要针对所述一个业务子帧上报碰撞指示信息；否则，判定不需要针对所述一个业务子帧上报碰撞指示信息。
  9. 如权利要求6所述的方法，其中，若第一终端判断所述一个业务子帧未出现碰撞，则所述方法进一步包括：
    第一终端在所述一个业务子帧上接收第二终端发送的的业务数据并进行解析；
    若解析成功，则对应所述一个业务子帧记录占用信息和所述第二干扰功率，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息和所述第二干扰功率，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期；以及
    若解析失败，则对应所述一个业务子帧记录占用信息和所述第二干扰功率。
  10. 如权利要求7、8或9所述的方法，其中，在所述业务数据解析成功时，所述方法进一步包括：
    第一终端在对应所述一个业务子帧的记录的占用信息中包含所述第二终端的标识，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧记录的占用信息中包含所述第二终端的标识，并且所述第一终端在确定对应任意一个业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个业务子帧标记为碰撞。
  11. 如权利要求3至10中任一项所述的方法，其中，在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息，包括：
    第一终端从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率最高的N个业务子帧，并针对所述N个业务子帧中的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成所述碰撞指示信息；或者，
    第一终端从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率高于 预设的第三门限值的业务子帧，并针对筛选出的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
  12. 如权利要求11所述的方法，其中，第一终端在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息，包括：
    当第一终端根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧未发生碰撞时，在到达所述业务子帧后，发送业务数据以及自身当前生成的碰撞指示信息。
  13. 如权利要求12所述的方法，进一步包括：
    第一终端根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧发生碰撞时，重新选定自身的业务子帧；其中，第一终端判定自身选定的业务子帧发生碰撞包括：在获得的所有碰撞指示信息中，对应所述自身选定的业务子帧记录有其他终端标识；或者，对应所述自身选定的业务子帧记录的干扰功率高于预设的第四门限值。
  14. 一种资源碰撞的检测指示装置，包括：
    判断单元，用于分别在一个帧周期中非自身占用的每一个业务子帧上进行信号监听，其中，每当到达一个业务子帧，确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断所述一个业务子帧是否出现碰撞；以及
    发送单元，用于在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
  15. 如权利要求14所述的装置，其中，确定一个业务子帧被占用时，所述判断单元用于：
    获得在所述一个业务子帧上的接收信号，并计算接收信号总功率；以及
    当确定所述接收信号总功率达到预设的第一门限值时，确定所述一个业务子帧被占用。
  16. 如权利要求15所述的装置，其中，所述判断单元确定所述接收信号总功率未达到预设的第一门限值时，基于接收信号进行干扰测量，并对应所 述一个业务子帧记录相应的第一干扰功率；以及判断对应所述一个业务子帧是否记录有占用信息，若是，则保持所述占用信息不变；否则，对应所述一个业务子帧记录空闲信息。
  17. 如权利要求15或16所述的装置，其中，所述判断单元进一步用于：
    在所述一个业务子帧上接收第二终端发送的碰撞指示信息，在所述碰撞指示信息解析成功时，分别对应所述碰撞指示信息中记录的每一个其他业务子帧记录占用信息，以及对应所有帧序号符合公式“SFi’＝SFc’+k*Periodx’，SFi’∈[0，Period-1]”的其他业务子帧记录占用信息；其中，SFc’为所述一个其他业务子帧的序号，SFi’为当前被判定的其他业务子帧的序号，k为整数，Periodx’为占用所述一个其他业务子帧的终端发送业务数据的的业务周期，Period为预设的帧周期。
  18. 如权利要求17所述的装置，其中，当对应一个其他业务子帧记录占用信息时，所述判断单元用于：
    对应所述一个其他业务子帧记录占用信息，其中，一个占用信息中包含占用对应的其他业务子帧的终端的标识，并且所述第一终端在确定对应任意一个其他业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个其他业务子帧标记为碰撞。
  19. 如权利要求14至18中任一项所述的装置，其中，当确定一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果记录所述一个业务子帧是否出现碰撞时，所述判断单元用于：
    确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，获得第二干扰功率；以及
    判断所述第二干扰功率是否达到预设的第二门限值，若是，则确定所述一个业务子帧出现碰撞；否则，确定所述业务子帧未出现碰撞。
  20. 如权利要求19所述的装置，其中，若判断所述一个业务子帧出现碰撞，则所述判断单元进一步用于：
    在所述一个业务子帧上接收第二终端发送的业务数据并进行解析；
    若解析成功，则对应所述一个业务子帧记录占用信息、所述第二干扰功率和第一碰撞标识，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx， SFi∈[0，Period-1]”的业务子帧，记录占用信息、所述第二干扰功率和所述第一碰撞标识，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期，所述第一碰撞标识中包含所述第二终端的标识；以及
    若解析失败，则对应所述一个业务子帧记录占用信息，所述第二干扰功率和第二碰撞标识，其中，所述第二碰撞标识中包含有所述第二干扰功率。
  21. 如权利要求20所述的装置，其中，在确定所述一个业务子帧的第二干扰功率达到第二门限值，且针对所述第二终端发送的业务数据解析成功之后，所述判断单元进一步用于：
    根据解析结果判断所述业务数据是否为周期性发送的，若是，则判定需要针对所述一个业务子帧上报碰撞指示信息；否则，判定不需要针对所述一个业务子帧上报碰撞指示信息。
  22. 如权利要求19所述的装置，其中，若判断所述一个业务子帧未出现碰撞，则所述判断单元进一步用于：
    在所述一个业务子帧上接收第二终端发送的的业务数据并进行解析；
    若解析成功，则对应所述一个业务子帧记录占用信息和所述第二干扰功率，以及对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧，记录占用信息和所述第二干扰功率，其中，SFc为所述一个业务子帧的序号，SFi为当前被判定的业务子帧的序号，k为整数，Periodx为所述第二终端发送业务数据的周期，Period为预设的帧周期；以及
    若解析失败，则对应所述一个业务子帧记录占用信息和所述第二干扰功率。
  23. 如权利要求20、21或22所述的装置，其中，在所述业务数据解析成功时，所述判断单元进一步用于：
    在对应所述一个业务子帧的记录的占用信息中包含所述第二终端的标识，以及在对应所有帧序号符合公式“SFi＝SFc+k*Periodx，SFi∈[0，Period-1]”的业务子帧记录的占用信息中包含所述第二终端的标识，并且所述第一终端在确定对应任意一个业务子帧记录的最新的占用信息和原占用信息中包含的终端的标识不一致时，将所述任意一个业务子帧标记为碰撞。
  24. 如权利要求16至23中任一项所述的装置，其中，在一个帧周期结束后，基于所有出现碰撞的业务子帧生成碰撞指示信息时，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息，所述发送单元用于：
    从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率最高的N个业务子帧，并针对所述N个业务子帧中的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成所述碰撞指示信息；或者，
    从判定出现碰撞的所有业务子帧中，筛选出第二干扰功率高于预设的第三门限值的业务子帧，并针对筛选出的每一个业务子帧分别生成相应的碰撞消息，以及基于生成的所有碰撞消息生成碰撞指示信息。
  25. 如权利要求24所述的装置，其中，在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息时，所述发送单元用于：
    根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧未发生碰撞时，在到达所述业务子帧后，发送业务数据以及自身当前生成的碰撞指示信息。
  26. 如权利要求25所述的装置，进一步包括：
    重新选择单元，用于根据在所述帧周期内接收到的所有其他终端发送的碰撞指示信息，判定自身选定的业务子帧发生碰撞时，重新选定自身的业务子帧；其中，第一终端判定自身选定的业务子帧发生碰撞包括：在获得的所有碰撞指示信息中，对应所述自身选定的业务子帧记录有其他终端标识；或者，对应所述自身选定的业务子帧记录的干扰功率高于预设的第四门限值。
  27. 一种资源碰撞的检测指示装置，包括：
    处理器；以及
    存储器，通过总线接口与所述处理器相连接，并且用于存储所述处理器在执行操作时所使用的程序和数据；
    收发机，用于在传输介质上与各种其他设备进行通信，
    当处理器调用并执行所述存储器中所存储的程序和数据时，所述资源碰撞的检测指示装置执行如下处理：
    第一终端分别在一个帧周期中非自身占用的每一个业务子帧上进行 信号监听，其中，每当到达一个业务子帧，第一终端确定所述一个业务子帧被占用时，基于接收信号进行干扰测量，并根据测量结果判断所述一个业务子帧是否出现碰撞；以及
    在一个帧周期结束后，第一终端基于所有出现碰撞的业务子帧生成碰撞指示信息，并在下一个自身选定的业务子帧上发送业务数据以及所述碰撞指示信息，其中，所述碰撞指示信息中包含有所述第一终端判定出现碰撞的至少一个业务子帧的碰撞消息。
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