WO2019024116A1 - 信息处理方法、通信设备和计算机存储介质 - Google Patents

信息处理方法、通信设备和计算机存储介质 Download PDF

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Publication number
WO2019024116A1
WO2019024116A1 PCT/CN2017/096113 CN2017096113W WO2019024116A1 WO 2019024116 A1 WO2019024116 A1 WO 2019024116A1 CN 2017096113 W CN2017096113 W CN 2017096113W WO 2019024116 A1 WO2019024116 A1 WO 2019024116A1
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WIPO (PCT)
Prior art keywords
bit
sequence
sci
communication device
bit sequence
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PCT/CN2017/096113
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English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201780051389.4A priority Critical patent/CN109644094B/zh
Priority to EP17919876.7A priority patent/EP3493450B1/en
Priority to PCT/CN2017/096113 priority patent/WO2019024116A1/zh
Priority to TW107127177A priority patent/TWI702869B/zh
Publication of WO2019024116A1 publication Critical patent/WO2019024116A1/zh
Priority to US16/353,883 priority patent/US10959214B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/007—Unequal error protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present application relates to the field of mobile communications technologies, and in particular, to an information processing method, a communication device, and a computer storage medium.
  • End-to-end communication refers to direct communication between two communication terminals without going through intermediate network devices.
  • the end-to-end communication includes a device to device (D2D) communication, and a vehicle to Everything (V2X).
  • the V2X wherein the V2X may include: a vehicle to vehicle (V2V) communication, a vehicle to person (V2P) communication, and a vehicle to infrastructure (V2I). Communication.
  • V2V vehicle to vehicle
  • V2P vehicle to person
  • V2I vehicle to infrastructure
  • a physical side-link shared channel (PSSCH) used for end-to-end communication is used for communication.
  • the control information of the PSSCH is sent by the physical side-link control channel (PSCCH). This control information is called Side-Link Control Information (SCI).
  • SCI Side-Link Control Information
  • the SCI defines a certain information format in advance; however, with the development of communication technologies, the SCI needs to indicate more information, which inevitably leads to the information bearing of the SCI relative to the original information format. A change occurs, and the change may cause the check sequence of the information-bearing that is dependent on the SCI to change and cause an abnormality. Therefore, solving the abnormality caused by the information bearer change of the SCI is an urgent problem to be solved in the prior art.
  • the embodiments of the present application are intended to provide an information processing method, a communication device, and a computer storage medium, which at least partially solve the problem of abnormal generation of a check sequence caused by a change in information bearer of the SCI.
  • the information processing method provided by the embodiment of the present application is applied to a communications device, and includes:
  • a check sequence is obtained based on the second bit sequence.
  • the embodiment of the present application provides a communications device, including:
  • a first acquiring unit configured to acquire an SCI, where the SCI includes: a first bit sequence;
  • a generating unit configured to set a bit of the specified field of the first bit sequence to a preset value to generate a second bit sequence
  • a second obtaining unit configured to acquire a check sequence based on the second bit sequence.
  • an embodiment of the present application provides a communication device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executed by the processor;
  • the processor is respectively connected to the transceiver and the memory, configured to control information transmission and reception of the transceiver and information storage of the memory, and implement the information processing method.
  • the embodiment of the present application further provides a computer storage medium, where the computer storage medium stores a computer program; after the computer program is executed by the processor, the information processing method can be implemented.
  • the information processing method, the communication device, and the computer storage medium provided by the embodiments of the present application specify the original bit sequence (ie, the first bit sequence) of the SCI when generating the check sequence.
  • the bits in the field are placed at a preset value to generate a second bit sequence.
  • a check sequence such as a CRC is generated using the second bit sequence.
  • the SCI can change the information bearer of the SCI according to the requirements, and use the reserved bits of the reserved domain of the SCI to carry more control information, and at the same time, when generating the check bit of the CRC, the bit value in the specified domain is set.
  • the check sequence can be generated in the original manner, thereby solving the problem that the information bearer of the SCI changes and the check bit is generated abnormally or generates an error, thereby achieving good compatibility with the prior art. , to ensure the correct generation of the check bits.
  • FIG. 1 is a schematic flowchart diagram of an information processing method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of interaction of a first transmission mode according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of interaction of a second transmission mode according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart diagram of another information processing method according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a communication terminal according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another communication terminal according to an embodiment of the present invention.
  • the SCI is a kind of control signaling for performing PSSCH scheduling, and has a specific information format.
  • the SCI format 1 is used for scheduling of a physical side-link shared channel (PSSCH).
  • the information domain and the reserved domain are predefined in the SCI format 1.
  • the information field is a set of bits of one or more bits that have been used to carry various control information.
  • the reserved field is a set of bits that retain bits to be used for subsequent use. When not used, when the SCI is transmitted, the bits in the reserved field are set to "0".
  • An indication bit indicating a frequency domain position of the initial transmission and the retransmission
  • An indication bit indicating a time domain interval between the initial transmission and the retransmission
  • An indication bit indicating the retransmission index is an indication bit indicating the retransmission index.
  • These indication bits perform transmission of the corresponding control information by using whether their own bit value is "1" or "0".
  • the generation of the check sequence depends on the bit sequence provided by the SCI, and the CRC sequence is generated when the bit sequence of the SCI is used.
  • the bits of the reserved reserved field in the SCI must be set to "0".
  • the embodiment of the present application provides a method, after receiving the SCI, acquiring an original bit sequence of the SCI, and then setting a bit in the specified field in the original bit sequence to generate the CRC sequence and the like.
  • the preset value required for the sequence is equivalent to generating a new bit sequence over the original bit sequence of the SCI, and then generating the check sequence using the new bit.
  • the reserved domain of the SCI can be used as the transmission of the control information; on the other hand, in the case of the communication mechanism compatible with the Rel-14 terminal, the check sequence is normally generated to solve the SCI information.
  • the bearer changes, causing the check sequence to generate anomalies.
  • the check sequence here is one or more bits for information verification.
  • the check sequence can determine whether an abnormality occurs in the generation and/or transmission of the information; in some cases, the check sequence has a certain error correction function, and can be based on the information after the corresponding information is detected.
  • the principle of generation and the result of the verification are performed, and error correction of the corresponding information is performed, thereby reducing information retransmission.
  • the communication terminal can be various communication devices in end-to-end communication, for example, can be a communication terminal or a roadside communication unit.
  • the information processing method includes:
  • Step S110 Acquire an SCI, where the SCI includes: a first bit sequence
  • Step S120 Set a bit of the specified field of the first bit sequence to a preset value to generate a second bit sequence.
  • Step S130 Acquire a check sequence based on the second bit sequence.
  • the check sequence here can be a CRC sequence.
  • the terminal may be a sending device of the SCI, or may be a receiving device of the SCI, and the communications device may be an in-vehicle terminal, a human-mounted terminal, or a roadside unit.
  • step S110 if the communication device is a transmitting device, the step S110 may generate the SCI according to the requirement of the data transmission, and the step S110 may include: generating according to the information transmission requirement of the user.
  • the SCI When the communication device is a receiving device, the step S110 may include: receiving the SCI from the sending device.
  • the SCI is used to schedule service data transmission of the PSSCH.
  • the check sequence is not generated by directly performing function processing or the like using the original bit sequence of the SCI (ie, the first bit sequence). Rather, all bits of the specified field in the first bit sequence are first converted to a preset value.
  • the designated field may be configured by any number of specified bits in the first bit sequence.
  • the specified bits included in the specified field may be discretely distributed in the first bit sequence, or may be continuously distributed. In this example, the designated bits included in the specified field are preferably continuously distributed.
  • the preset value is rewritten.
  • the preset value may be “0” or “1”.
  • the check sequence is generated based on the second bit sequence generated by the first bit sequence in step S130.
  • the step S130 may include: querying a preset correspondence relationship by using the second bit sequence as a query basis, and obtaining the second bit sequence in the correspondence relationship A check sequence corresponding to the column, for example, a CRC sequence corresponding to the second bit sequence.
  • the step S130 may include: using the second bit sequence as a generation basis, using the second bit sequence as a variable, and generating a check sequence such as a CRC sequence by function processing.
  • the bit value of the specified field of the first bit sequence of the SCI carrying the control information may cause a check sequence to be generated.
  • the rewriting in step S120 is performed. It is possible to generate a second bit sequence that can be used to generate the correct check sequence.
  • the information bearer of the SCI can be improved and upgraded according to actual needs, and on the other hand, if the existing check sequence generation mechanism is compatible as much as possible, the check sequence is guaranteed to be normal and correct. Generation.
  • the method further includes:
  • the method further includes:
  • the first bit sequence When it is determined that the type of the first bit sequence is the first type, generating a check sequence of the CRC sequence or the like according to the first bit sequence; wherein, when the bit value of each bit in the specified domain is When the preset value is described, the first bit sequence is the first type, otherwise it may be considered to be different from the second type of the first type.
  • the step S120 may include:
  • the bit in the specified domain that is not equal to the preset value is rewritten to the preset value, and the second bit sequence is generated.
  • n predetermined bits in the specified domain Determining whether a bit value of n predetermined bits in the specified domain is the preset value.
  • the frequency of effective use of each bit in the specified domain may be different, in this embodiment,
  • the n specific bits are the n bits with the highest frequency of use.
  • bit values of the first n bits in the specified domain may be extracted. This can reduce the number of judgments. If the bit value of the n bits is the preset value, there is a very large probability that the bit value of the remaining bits in the specified domain is also the preset value, which can reduce the number of judgments and speed up the judgment.
  • the method further includes:
  • the type of the first bit sequence is the second type, after extracting control information from the first bit sequence, setting a specified field in the first bit sequence to the preset value, Generating the second bit sequence;
  • the control when the first bit sequence is generated, after the control information is extracted or the first bit sequence of the copy is set in a specified domain, the control may be avoided.
  • Information the problem of failure of control information extraction caused by setting a specified field of the first bit sequence.
  • the method further includes: distinguishing a predefined reserved domain and an information domain other than the reserved domain based on an information format of the SCI; and the step S120 may include: retaining the first bit sequence A bit in the field is set to the preset value to generate the second bit sequence.
  • the information format of the SCI defines a reserved domain and an information domain in advance.
  • the reserved field is a temporarily unused bit field that is intentionally reserved when defining the information format of the SCI.
  • the bit field is a set of bits consisting of one or more bits for indicating.
  • a set of bits composed of bits used for controlling information transmission is set.
  • the specified domain is a reserved domain indicated in an information format of the SCI.
  • the preset value is “0”. Therefore, in step S120, the method may include: replacing a bit corresponding to the reserved field in the first bit sequence with the preset value, for example, “0”, to form a new bit sequence. The CRC sequence is then generated based on the new bit sequence.
  • the first S1 bits of the first bit sequence are information fields, and the last S2 bits are reserved fields.
  • the terminal finds that the bit value of at least one bit in the reserved domain is not 0.
  • the terminal generates a second bit sequence by performing step S120.
  • a check sequence is generated based on the second bit sequence by the setting operation of the preset value in step S130.
  • the second bit sequence remains unchanged with respect to the first bit sequence, and all bits of the reserved field are rewritten to a preset value of “0”.
  • a CRC as a check sequence is generated directly based on the second bit sequence.
  • the reserved field includes: a first type of bit
  • the first type of bit is used to indicate a transmission parameter of an end-to-end transmission.
  • the first type of bits herein can be one or more bits.
  • the transmission parameter may be a control parameter that controls transmission of service data in a subsequent PSSCH.
  • the transmission parameter may be a transmission mode parameter and/or a transmission mode parameter.
  • the following provides three optional indication bits of the first type of bits in combination with transmitting different transmission parameters
  • the first type of bits may include: an indication bit indicating whether to use diversity transmission. For example, if the bit value of the corresponding bit is the first value, the diversity transmission is indicated; if the bit of the corresponding bit is the second value, the diversity transmission is not indicated. The first value is different from the second value.
  • the number of corresponding bits here may be one or more. If the number of corresponding bits is one, and if the first value is "0", the second value is "1"; if the number of corresponding bits is one, and if the first value is "1", the second value is "0". ,
  • the first type of bit includes: an indication bit indicating whether to use a short transmission time interval (sTTI) transmission mode.
  • sTTI short transmission time interval
  • the used subframe includes no more than seven transmission symbols.
  • the transmitting end simultaneously transmits the control information and the service information, and the receiving end first needs to receive the control information, and decodes the control information, and performs the receiving and decoding of the service information according to the decoded control information. If the number of transmission symbols included in one subframe is smaller, the shorter the time at which the receiving end decodes the control information, the smaller the delay in receiving the service information, and the receiving rate of the service information can be improved.
  • the first type of the bit may include: indicating whether the transmission of the service information of the corresponding PSSCH adopts the sTTI, and if the sTTI is not adopted, the TTI may be adopted by default.
  • the first type of bits may further include: an indication bit indicating a transmission mode to be employed.
  • two transmission modes are defined, which are a first transmission mode and a second transmission mode, respectively.
  • the first type of bits may further include: an indication bit indicating a Modulation and Coding Scheme (MCS) table to be employed.
  • MCS Modulation and Coding Scheme
  • the first transmission mode refers to: the transmission resource of the in-vehicle terminal is allocated by the base station, and the in-vehicle terminal performs data transmission on the side line according to the resource allocated by the base station; the base station may allocate a single order for the terminal.
  • the secondary transmission resource can also allocate semi-static transmission resources to the terminal.
  • the first mode in this embodiment may be mode 3 in Rel-14.
  • the second transmission mode refers to: a transmission mode in which the vehicle-mounted terminal adopts interception and reservation.
  • the vehicle terminal obtains a set of available transmission resources by means of interception in the resource pool, and the terminal randomly selects one resource from the set for data transmission. Since the services in the Internet of Vehicles system have periodic characteristics, the terminal usually adopts a semi-static transmission mode, that is, the terminal selects After a resource is transmitted, the resource is continuously used in multiple transmission cycles, thereby reducing the probability of resource reselection and resource conflict.
  • the terminal carries the information for reserving the next transmission resource in the control information of the current transmission, so that other terminals can determine whether the resource is reserved and used by the terminal by detecting the control information sent by the terminal, thereby reducing resource conflicts.
  • the second mode in this embodiment may be mode 4 in Rel-14.
  • the first type of bits may include one or more of an optional indication bit 1, an optional indication bit 2, an optional indication bit 3, and an optional indication bit 4; and the above is only an example, the specific implementation The time is not limited to the above four optional indication bits.
  • DL is represented as a downlink of a base station (for example, an evolved base station (eNB)), and the downlink control signal transmitted by the downlink carries scheduling information of an authorized resource in the first mode.
  • eNB evolved base station
  • SL represents a side-by-side link for end-to-end data transmission and reception.
  • the method further includes:
  • Step S140 Acquire a pilot sequence based on the check sequence, where the pilot sequence is used for channel measurement of a physical side line shared channel.
  • the terminal may query the correspondence to obtain a pilot sequence according to a correspondence between a CRC sequence and a pilot sequence.
  • the terminal may generate the pilot sequence by function processing by using the CRC sequence as a variable.
  • the pilot sequence is a pilot sequence that is generated locally or locally by the terminal.
  • the pilot sequence may be a DMRS sequence corresponding to a Demodulation Reference Signal (DRMS).
  • DRMS Demodulation Reference Signal
  • the terminal performs channel measurement on the received signal received from the PSSCH by using a pilot sequence, and acquires a reception quality.
  • a reference signal received power RSRP
  • the pilot signal is not limited to the DRMS sequence, and may also be a reference sequence of other reference signals.
  • the method may further include:
  • Step S150 Receive a measurement signal transmitted by using a PSSCH
  • Step S160 Perform correlation demodulation on the measurement signal by using the pilot sequence to obtain an RSRP of the PSSCH.
  • the method in this embodiment further includes:
  • the second check sequence for example, a CRC sequence, is added to the end of the SCI for transmission.
  • the method in this embodiment further includes:
  • the data of the PSSCH is scrambled by the second check sequence.
  • the service data transmitted by using the PSSCH is scrambled by using the second check sequence, thereby improving the security of the service data of the PSSCH.
  • the embodiment provides a communication device, where the communication device can be a sender in end-to-end communication, including:
  • the first acquiring unit 110 is configured to acquire an SCI, where the SCI includes: a first bit sequence;
  • the generating unit 120 is configured to set a bit of the specified field of the first bit sequence to a preset value to generate a second bit sequence;
  • the second obtaining unit 130 is configured to acquire a check sequence based on the second bit sequence.
  • the communication device provided in this embodiment may be various communication devices in end-to-end communication, for example, a mobile terminal, or a roadside communication unit or the like.
  • the first obtaining unit 110, the generating unit 120, and the second obtaining unit 130 may each correspond to a processor; the processor may include: (Application Processor (AP), central processing unit ( CPU, Central Processing Unit), Digital Signal Processor (DSP) or Field Programmable Gate Array (FPGA), Microprocessor Unit (MPU), ASIC, Application
  • the processor may implement acquisition of the SCI, generation of the second bit sequence, and generation of a check sequence such as the CRC sequence by implementation of computer executable instructions such as a computer program.
  • the communications device further includes:
  • a distinguishing unit configured to distinguish a predefined reserved domain and an information domain other than the reserved domain based on the information format of the SCI
  • the generating unit 120 is configured to set a bit in a reserved field of the first bit sequence to the preset value to generate the second bit sequence.
  • the distinguishing unit may also correspond to the processor, and the reserved domain and the information domain may be distinguished by comparing the first bit sequence of the currently received SCI with the information format of the SCI.
  • the communications device further includes:
  • an extracting unit configured to extract a first type of bit from the reserved domain; wherein the first type of bit is used to indicate a transmission parameter of the end-to-end transmission.
  • the extracting unit here can also correspond to the processor, and the first type of bits are extracted from the corresponding position by the execution of the computer program, and the bit value of the first type of bit is obtained according to the specification of the communication protocol, etc.
  • the control information corresponding to the bit value.
  • the first type of bit includes at least one of: an indication bit indicating whether to adopt diversity transmission; an indication bit indicating whether to adopt a short transmission time interval transmission mode; an indication bit indicating a adopted transmission mode; indication The indication bits of the adopted MCS table.
  • the first type of bits is not limited to one or a combination of the above four indication ratios, and may also be indicator bits indicating other transmission parameters.
  • the communications device further includes:
  • a third acquiring unit configured to acquire a pilot sequence based on the check sequence, where the pilot sequence is used for channel measurement of a physical side row shared channel.
  • the communication device in this embodiment further includes: a third obtaining unit, which may also correspond to the processor, and may obtain the pilot sequence or the like by using the generated CRC sequence.
  • the communications device further includes:
  • a verification unit configured to verify the SCI by using a second check sequence generated based on the first bit sequence
  • the sending unit is configured to send the SCI and the second check sequence when the SCI check is passed.
  • the check unit can also be a processor, and the SCI can also be verified by the check sequence by execution of a computer program.
  • the sending unit may be corresponding to a transceiver antenna and may be used for information interaction between the communication device and other communication devices.
  • the communications device further includes:
  • the scrambling unit is configured to scramble data of the physical side row shared channel PSSCH by generating a second check sequence based on the first bit sequence.
  • the scrambling unit may also correspond to a processor, and may be used to scramble data of the PSSCH.
  • the first acquiring unit 110 is configured to generate the SCI.
  • the first acquiring unit 110 is configured to receive the SCI from the sending device.
  • the embodiment provides a communication device, including: a transceiver 210, a memory 220, a processor 230, and a computer program stored on the memory 220 and executed by the processor 230;
  • the processor 230 is connected to the transceiver and the memory, and configured to control information transmission and reception of the transceiver and information storage of the memory, and implement an information processing method provided by one or more technical solutions. For example, an information processing method as shown in FIGS. 1, 2, and 4 can be performed.
  • the transceiver 210 can correspond to a transceiver antenna of a communication device.
  • the memory 220 can include various types of storage media.
  • the storage medium may include at least: a non-volatile storage medium partially for storing the computer program.
  • the processor 230 can be coupled to the transceiver 210 and the memory 220 via an integrated circuit bus or the like.
  • the processor 230 can be a CPU, an MCU, an AP, a DSP, a PLC, an ASIC, or the like.
  • the processor 230 may perform the following operations: acquiring side-line control information SCI, where the SCI includes: a first bit sequence; and a specified domain of the first bit sequence The bit is set to a preset value to generate a second bit sequence; the check sequence is obtained based on the second bit sequence.
  • the processor 230 may be further configured to: differentiate between a predefined reserved domain and an information domain other than the reserved domain based on an information format of the SCI; A bit in the reserved field of the first bit sequence is set to the predetermined value to generate the second bit sequence.
  • the reserved field includes: a first type of bit; wherein the first type of bit is used to indicate a transmission parameter of an end-to-end transmission.
  • the first type of bits includes at least one of: an indication bit indicating whether to adopt diversity transmission; an indication bit indicating whether to adopt a short transmission time interval transmission mode; and an indication bit indicating a adopted transmission mode.
  • the processor 230 can be further configured to: obtain a pilot sequence based on the check sequence, wherein the pilot sequence is used for channel measurement of a physical side-by-side control channel.
  • the processor 230 is configured to verify the SCI by using the check sequence; and send the check sequence and the SCI after the SCI passes the check.
  • the processor 230 is configurable to scramble data of the physical side row shared channel PSSCH using the CRC sequence.
  • the embodiment of the present application further provides a computer storage medium, where the computer storage medium stores a computer program; after the computer program is executed by the processor, the information processing method provided by the foregoing one or more technical solutions can be implemented, for example, The method shown in Figures 1, 2 and 4.
  • the computer storage medium provided by the embodiment of the present application includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. Medium.
  • the computer storage medium may be selected as: a non-volatile storage medium.
  • a CRC sequence generated using the same information domain as the PSCCH in the Rel-14 communication standard is utilized, and the DMRS sequence of its corresponding PSSCH is generated using the CRC sequence.
  • transmit diversity and/or sTTI and/or transmission mode in SCI format 1 If it is necessary to occupy the indication transmit diversity and/or sTTI and/or transmission mode in SCI format 1, in order to enable the terminal of Rel-14 to detect the new SCI carried on the PSCCH.
  • One possible design is to use the reserved bits in the reserved field in SCI format 1 to characterize physical meanings such as transmit diversity and/or sTTI and/or transmission mode. For example, a reserved bit is used to distinguish whether transmit diversity is used, and a reserved bit is used to distinguish different transmission modes.
  • the new SCI multiplexes the reserved bits in SCI format 1 and is used to characterize the new physical meaning, but still uses the case where the reserved bits are set to "0" to generate a CRC sequence, and uses the CRC sequence to generate a DMRS for the PSSCH. sequence.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the above integration
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the information bearing may change, which may result in failure.
  • the normal and correct generation of the check code will set the original first bit sequence of the SCI to the bit value of the specified field, and generate a second bit sequence in which the bits in the specified domain are preset values, and generate the second bit sequence based on the second bit sequence. Check the sequence. This solves the problem that the check sequence generated by the specified domain in the SCI is abnormal or wrong after being written into the data, thereby having a positive industrial effect.
  • the computer-executable code controls the transmitting end of the SCI to perform the generation of the second bit sequence, and the second bit sequence can be used to successfully and correctly generate the check sequence, thereby achieving achievability and Industrially widely available features.

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Abstract

本申请公开了一种信息处理方法，应用于通信设备中，包括：获取侧行链路控制信息SCI；其中，所述SCI包括：第一比特序列；将所述第一比特序列的指定域的比特置为预设值，以生成第二比特序列；基于所述第二比特序列获取校验序列。本申请实施例还提供了一种通信设备及计算机存储介质。

Description

信息处理方法、通信设备和计算机存储介质 技术领域
本申请涉及移动通信技术领域，尤其涉及一种信息处理方法、通信设备及计算机存储介质。
背景技术
端到端通信指的是：不经过中间网络设备，而是由两个通信端之间的直接通信。所述端到端的通信，包括终端到终端(Device to Device，D2D)的通信，车辆到其他设备的通信(Vehicle to Everything，V2X)。所述V2X，其中V2X又可以包括：车到车(Vehicle to Vehicle，V2V)的通信，、车到人(Vehicle to Person，V2P)的通信及车到路边单元(Vehicle to Infrastructure，V2I)的通信。
在一些通信场景中，端到端通信时采用的物理侧行共享信道(Physical Side-link Shared Channel，PSSCH)进行通信。但是会通过物理侧行控制信道(Physical Side-link Control Channel，PSCCH)下发PSSCH的控制信息。该控制信息称为侧行链路控制信息(Side-link Control Information，SCI)。
在Rel-14通信标准中，所述SCI是预先定义了一定的信息格式的；但是随着通信技术的发展，SCI需要指示更多的信息，必然导致SCI的信息承载相对于原有的信息格式发生变化，而这种变化可能会导致依赖于SCI的信息承载的校验序列发生变化并导致异常，故解决这种SCI的信息承载变化导致的异常，是现有技术亟待解决的问题。
发明内容
有鉴于此，本申请实施例期望提供一种信息处理方法、通信设备及计算机存储介质，至少部分解决SCI的信息承载发生变化后导致的校验序列的生成异常的问题。
本申请实施例的技术方案是这样实现的：
第一方面，本申请实施例提供的信息处理方法，应用于通信设备中，包括：
获取SCI；其中，所述SCI包括：第一比特序列；
将所述第一比特序列的指定域的比特置为预设值，以生成第二比特序列；
基于所述第二比特序列获取校验序列。
第二方面，本申请实施例提供一种通信设备，包括：
第一获取单元，配置为获取SCI；其中，所述SCI包括：第一比特序列；
生成单元，配置为将所述第一比特序列的指定域的比特置为预设值，以生成第二比特序列；
第二获取单元，配置为基于所述第二比特序列获取校验序列。
第三方面，本申请实施例提供一种通信设备，包括：收发器、存储器、处理器及存储在所述存储器上且被所述处理器执行的计算机程序；
所述处理器，分别与所述收发器及所述存储器连接，配置为控制所述收发器的信息收发及所述存储器的信息存储，并实现上述信息处理方法。
第四方面，本申请实施例还提供一种计算机存储介质，所述计算机存储介质存储有计算机程序；所述计算机程序被处理器执行后，能够实现上述信息处理方法。
本申请实施例所提供的信息处理方法、通信设备及计算机存储介质，在生成校验序列时，会将SCI的原始比特序列(即第一比特序列)中指定 域内的比特置于预设值，从而生成第二比特序列。利用第二比特序列生成CRC等校验序列。这样的话，SCI可以根据需求，改变SCI的信息承载，利用SCI的保留域的保留比特等实现携带更多的控制信息，同时在生成CRC等校验比特时，通过将指定域中的比特值设置为预设值，可以沿用原来的方式生成校验序列，从而解决了SCI的信息承载发生变化导致校验比特的生成异常或生成错误的问题，从而实现了与现有技术的很好兼容的同时，确保了校验比特的正确生成。
附图说明
图1为本申请实施例提供的一种信息处理方法的流程示意图；
图2为本申请实施例提供的一种序列之间的变化示意图；
图3为本申请实施例提供的第一传输模式的交互示意图；
图4为本发明实施例提供的第二传输模式的交互示意图；
图5为本发明实施例提供的另一种信息处理方法的流程示意图；
图6为本发明实施例提供的一种通信终端的结构示意图；
图7为本发明实施例提供的另一种通信终端的结构示意图。
具体实施方式
SCI是用于进行PSSCH调度的一种控制信令，且具有特定的信息格式的，例如，在3GPP Rel-14版本中，采用SCI format 1进行物理侧行链路共享信道(PSSCH)的调度。所述SCI format 1中预先定义了信息域和保留域。其中，所述信息域为已经被使用进行各种控制信息承载的一个或多个比特的比特集合。所述保留域为保留后续使用的待使用比特的比特集合。在未被使用时，所述SCI发送时，保留域内的比特置为“0”。
所述信息域可包括以下指示比特中的一个或多个：
指示优先级的指示比特；
指示初传和重传的频域位置的指示比特；
指示初传和重传之间时域间隔的指示比特；
指示调制编码格式的指示比特；
指示重传索引的指示比特。
这些指示比特利用自身的比特值是“1”还是“0”进行对应的控制信息的传输。
在Rel-14终端，校验序列(例如，循环冗余校验码(Cyclic Redundancy Check,CRC序列))的生成是取决于SCI提供的比特序列，且利用SCI的比特序列生成CRC序列时，要求SCI中预先定义的保留域的比特必须置为“0”。有鉴于此，本申请实施例提供了一种方法，在接收到所述SCI之后，获取SCI的原始比特序列，然后将原始比特序列中指定域中的比特置为生成所述CRC序列等校验序列所需的预设值，相当于在SCI的原始比特序列之上生成了一个新比特序列，然后利用新的比特进行所述校验序列的生成。
这样的话，一方面，可以利用SCI的保留域用作控制信息的传输；另一方面，在兼容Rel-14终端的通信机制的情况下，正常的生成所述校验序列，以解决SCI的信息承载发生变化，导致的校验序列生成异常的问题。
这里的校验序列为进行信息校验的一个或多个比特。通过校验序列可以判断出信息的生成和/或传输是否出现异常；在一些情况下，所述校验序列还有一定的纠错功能，可以在检出对应的信息出现错误之后，基于信息的生成原理和校验结果，进行对应信息的纠错，从而减少信息重传。以下结合附图对本申请的优选实施例进行详细说明，应当理解，以下所说明的优选实施例仅用于说明和解释本申请，并不用于限定本申请。
本实施例提供一种信息处理方法，应用于通信终端中。该通信终端可为端到端通信中的各种通信设备，例如，可为通信终端或路边通信单元。如图1所示，所述信息处理方法包括：
步骤S110：获取SCI；其中，所述SCI包括：第一比特序列；
步骤S120：将所述第一比特序列的指定域的比特置为预设值，以生成第二比特序列；
步骤S130：基于所述第二比特序列获取校验序列。这里的校验序列可为CRC序列。
在本实施例中所述终端可为SCI的发送设备，也可以为所述SCI的接收设备，该通信设备可为车载终端、人载终端或路边单元。
在步骤S110中，若所述通信设备为发送设备，则所述步骤S110则会根据自身数据发送的需求，自行生成所述SCI，所述步骤S110中可包括：根据自身的信息传输需求，生成所述SCI。当所述通信设备为接收设备，则所述步骤S110可包括：从发送设备接收所述SCI。所述SCI用于调度PSSCH的业务数据传输。
在本实施中，若需要基于SCI生成校验序列时，不是直接利用SCI的原始比特序列(即所述第一比特序列)进行函数处理等生成所述校验序列。而是首先会将所述第一比特序列中的指定域的所有比特转换成预设值。例如，假设所述SCI的第一比特序列包括32个比特，在本实施例中，所述指定域可为所述第一比特序列中任意多个指定比特构成。所述指定域包括的指定比特可以在所述第一比特序列中离散分布，也可以连续分布。在本实例中，所述指定域包括的指定比特优选为连续分布。
在本实施例中不管所述指定域中指定比特的原始比特值的具体取值，都会被改写成所述预设值。在具体实现时，所述预设值可为“0”或“1”。
在步骤S130中会基于第一比特序列产生的第二比特序列，来生成所述校验序列。
在一些实施例中，所述步骤S130可包括：以所述第二比特序列为查询依据，查询预先设定的对应关系，获得所述对应关系中与所述第二比特序 列对应的校验序列，例如，与所述第二比特序列对应的CRC序列。
在另一些实施例中，所述步骤S130可包括：以所述第二比特序列为生成依据，将所述第二比特序列为变量，通过函数处理生成如CRC序列等校验序列。
这样的话，即便SCI的信息承载发生了变化，使得承载了控制信息的SCI的第一比特序列的指定域的比特值会导致校验序列的生成错误，在本实施例中通过步骤S120中的改写，可以使得产生一个可以用于生成正确的校验序列的第二比特序列。这样的话，一方面，可以利用根据实际需求对SCI的信息承载进行改进和升级，另一方面可以尽可能的兼容现有的校验序列的生成机制的情况下，确保校验序列的正常和正确的生成。
在一些情况，所述方法还包括：
依据所述第一比特序列中各比特的比特值，判断所述第一比特序列的类型；
所述方法还包括：
当判断出所述第一比特序列的类型为第一类型时，根据所述第一比特序列生成所述CRC序列等校验序列；其中，当所述指定域中各个比特的比特值均为所述预设值时，所述第一比特序列为所述第一类型，否则可认为是不同于第一类型的第二类型。
所述步骤S120可包括：
当所述第一比特序列的类型为第二类型时，将所述指定域中不等于所述预设值的比特改写成所述预设值，生成所述第二比特序列。
在判断所述第一比特序列的类型时，可包括以下方式：
逐一判断所述指定域中每一个比特的比特值是否为所述预设值；
判断所述指定域中的n个预定比特的比特值是否为所述预设值。在通信时，指定域中各个比特的被有效使用的频次可能是不同，在本实施例中， n个特定比特为使用频次最高的n个比特。当所述指定域为比特连续分布的比特域时，可以提取该指定域中的前n个比特的比特值。这样可以减少判断的次数。若这n个比特的比特值为所述预设值，则有非常大的几率指定域中剩余比特的比特值也为所述预设值，这样可以减少判断的次数，加速判断。
在一些实施例中，所述方法还包括：
当所述第一比特序列的类型为所述第二类型时，在从所述第一比特序列提取出控制信息之后，将所述第一比特序列中的指定域设置为所述预设值，生成所述第二比特序列；
或者
当所述第一比特序列的类型为所述第二类型时，复制所述第一比特序列，改写复制的所述第一比特序列中的指定域，生成所述第二比特序列。
在本实施中在生成所述第一比特序列时，是在提取出所述控制信息之后或者对复制的第一比特序列进行指定域内的比特值的设置，可以避免在未成功提取出所述控制信息，就对第一比特序列的指定域进行设置导致的控制信息提取失败的问题。
可选地，所述方法还包括：基于所述SCI的信息格式区分出预定义的保留域及所述保留域以外的信息域；所述步骤S120可包括：将所述第一比特序列的保留域中的比特置为所述预设值，以生成所述第二比特序列。
所述SCI的信息格式，预先定义出了保留域和信息域。在本实施例中所述保留域为定义所述SCI的信息格式时，特意保留的暂时未使用的比特域。所述比特域为由一个或多个比特组成的，用于进行指示的比特集合。所述信息域为所述SCI的信息格式提出时，就被设置已用于控制信息传输的比特组成的比特集合。
在本实施例中所述指定域为所述SCI的信息格式中指示的保留域。在 本实施例中，若所述指定域为所述保留域时，所述预设值为“0”。故在步骤S120中可包括：将第一比特序列中对应于所述保留域的比特，通通置换为所述预设值，例如，“0”，形成一个新的比特序列。再基于新的比特序列，生成所述CRC序列。
如图2所示，第一比特序列的前S1个比特为信息域，后S2个比特为保留域。终端在接收到所述SCI之后，发现保留域中至少有一个比特的比特值不为0。所述终端通过执行步骤S120生成了第二比特序列。在通过步骤S130中的预设值的设置操作，基于第二比特序列生成了校验序列。
依据图2可知，第二比特序列相对于第一比特序列，信息域保持不变，而保留域所有比特都被改写成了预设值“0”。而作为校验序列的一种CRC是直接基于第二比特序列生成的。
在一些实施例中，所述保留域包括：第一类比特；
其中，所述第一类比特，用于指示端到端传输的传输参数。
这里的第一类比特可为一个或多个比特。
所述传输参数可为控制后续PSSCH中业务数据传输的控制参数。所述传输参数可为传输方式参数和/或传输模式参数。
以下结合传输不同的传输参数，提供所述第一类比特的三种可选指示比特；
可选指示比特一：
所述第一类比特，可包括：指示是否采用分集传输的指示比特。例如，若对应比特的比特值为第一取值，则指示进行分集传输；若对应比特的比特指为第二取值，则指示不进行分集传输。所述第一取值不同于所述第二取值。这里的对应比特的数目可为1个或多个。若对应比特的个数为1个时，且若第一取值为“0”，则第二取值为“1”；若对应比特的个数为1个时，且若第一取值为“1”，则第二取值为“0”。、
可选指示比特二：
所述第一类比特包括：指示是否采用短传输时间间隔(short Transmission Time Interval，sTTI)传输方式的指示比特。通常利用sTTI传输方式进行数据传输时，使用的子帧包括的传输符号数不超过7个。这样的话，发送端同时传输控制信息和业务信息，接收端首先需要接收到控制信息，并解码出控制信息，根据解码的控制信息进行业务信息的接收和解码。若一个子帧包括的传输符号个数越少，则接收端解码控制信息的时间越短，则接收到所述业务信息的时延越小，则可以提升业务信息的接收速率。在本实施例中所述第一类比特可包括：指示对应的PSSCH的业务信息的传输是否采用sTTI，若不采用sTTI，则可认为默认采用TTI。
可选指示比特三：
所述第一类比特还可包括：指示采用的传输模式的指示比特。
例如，在V2X的通信中，定义有两种传输模式，分别是第一传输模式和第二传输模式。
可选指示比特四：
所述第一类比特还可包括：指示采用的调制编码方案(Modulation and Coding Scheme，MCS)表的指示比特。
如图3所示，所述第一传输模式是指：车载终端的传输资源是由基站分配的，车载终端根据基站分配的资源在侧行链路上进行数据的发送；基站可以为终端分配单次传输的资源，也可以为终端分配半静态传输的资源。本实施例中的第一模式可为在Rel-14的模式3。
如图4所示，所述第二传输模式是指：车载终端采用侦听和预留的传输方式。车载终端在资源池中通过侦听的方式获取可用的传输资源集合，终端从该集合中随机选取一个资源进行数据的传输。由于车联网系统中的业务具有周期性特征，因此终端通常采用半静态传输的方式，即终端选取 一个传输资源后，就会在多个传输周期中持续的使用该资源，从而降低资源重选以及资源冲突的概率。终端会在本次传输的控制信息中携带预留下次传输资源的信息，从而使得其他终端可以通过检测该终端发送的控制信息判断这块资源是否被该终端预留和使用，达到降低资源冲突的目的。本实施例中的第二模式可为在Rel-14的模式4。
当然，所述第一类比特可包括：可选指示比特一、可选指示比特二、可选指示比特三及可选指示比特四中的一种或多种；且以上仅是举例，具体实现时，不局限于上述四种可选指示比特。
在图3和图4中DL表示为基站(例如，演进型基站(eNB))的下行链路，该下行链路发送的下行控制信号，在第一模式中携带有授权资源的调度信息。在图3和图4中SL表示的为侧行链路，用于端到端的数据收发。
如图5所示，所述方法还包括：
步骤S140：基于所述校验序列获取导频序列，其中，所述导频序列，用于物理侧行共享信道的信道测量。
在一些实施例中，所述终端可根据CRC序列与导频序列的对应关系，查询所述对应关系获取导频序列。
在另一些实施例中，所述终端可以所述CRC序列为变量，通过函数处理生成所述导频序列。
在本实施例中，所述导频序列为终端在本地生成或本地查询获取的导频序列。所述导频序列可为解调参考信号(Demodulation Reference Signal，DRMS)对应的DMRS序列。
所述终端利用导频序列，对从PSSCH接收的接收信号进行信道测量，获取接收质量，例如，通过相关计算得到参考信号接收功率(Reference Signal Receiving Power，RSRP)。当然在具体实现时，所述导频信号不局限于DRMS序列，还可以是其他参考信号的参考序列。
故如图5所示，所述方法还可包括：
步骤S150：接收利用PSSCH发送的测量信号；
步骤S160：利用所述导频序列对所述测量信号进行相关解调，获取所述PSSCH的RSRP。
在一些实施例中，若利用前述方法生成的校验序列为第一校验序列，在本实施例中所述方法还包括：
利用所述第一比特序列生成第二校验序列；
利用所述第二校验序列对所述SCI进行校验；
发送所述SCI和所述第二校验序列。通常情况下，会将所述第二校验序列例如CRC序列，追加在所述SCI的末尾进行发送。
在还有一些实施例中，若利用前述方法生成的校验序列为第一校验序列，在本实施例中所述方法还包括：
利用所述第一比特序列生成第二校验序列；
利用所述第二校验序列对PSSCH的数据进行加扰。
例如，利用所述第二校验序列对利用PSSCH传输的业务数据进行加扰，从而提升PSSCH的业务数据的安全性。
如图6所示，本实施例提供一种通信设备，该通信设备可为端到端通信中的发送端，包括：
第一获取单元110，配置为获取SCI；其中，所述SCI包括：第一比特序列；
生成单元120，配置为将所述第一比特序列的指定域的比特置为预设值，以生成第二比特序列；
第二获取单元130，配置为基于所述第二比特序列获取校验序列。
本实施例提供的通信设备可为端到端通信中的各种通信设备，例如，移动终端，或者，路边通信单元等。
所述第一获取单元110、所述生成单元120及所述第二获取单元130均可对应于处理器；所述处理器可包括：(应用处理器(AP，Application Processor)、中央处理器(CPU，Central Processing Unit)、数字信号处理器(DSP，Digital Signal Processor)或可编程门阵列(FPGA，Field Programmable Gate Array)、微处理器(MPU，Micro Processing Unit)、专用集成电路(ASIC，Application Specific Integrated Circuit)。所述处理器可以通过计算机程序等计算机可执行指令的实现，实现所述SCI的获取、所述第二比特序列的生成及所述CRC序列等校验序列的生成。
可选地，所述通信设备还包括：
区分单元，配置为基于所述SCI的信息格式区分出预定义的保留域及所述保留域以外的信息域；
所述生成单元120，配置为将所述第一比特序列的保留域中的比特置为所述预设值，以生成所述第二比特序列。
在本实施例中所述区分单元同样可对应于处理器，可以通过将当前接收到的SCI的第一比特序列与SCI的信息格式的比对，可以区分出保留域和信息域。
可选地，所述通信设备还包括：
提取单元，配置为从所述保留域提取第一类比特；其中，所述第一类比特，用于指示端到端传输的传输参数。
这里的提取单元，同样可对应于处理器，通过计算机程序的执行，从对应位置提取出所述第一类比特，并结合通信协议的规定等与所述第一类比特的比特值，获得所述比特值对应的控制信息。
可选地，所述第一类比特，包括以下至少其中之一：指示是否采用分集传输的指示比特；指示是否采用短传输时间间隔传输方式的指示比特；指示采用的传输模式的指示比特；指示采用的MCS表的指示比特。
在具体实现是，所述第一类比特不限于上述四种指示比中的一种或组合，还可以是指示其他传输参数的指示比特。
可选地，所述通信设备还包括：
第三获取单元，配置为基于所述校验序列获取导频序列，其中，所述导频序列，用于物理侧行共享信道的信道测量。
在本实施例中所述通信设备，还包括：第三获取单元，该第三获取单元同样可对应于处理器，可以通过基于生成的CRC序列得到所述导频序列等。
在一些实施例中，所述通信设备还包括：
校验单元，配置为利用基于第一比特序列生成的第二校验序列对所述SCI进行校验；
发送单元，配置为当所述SCI校验通过时，发送所述SCI及所述第二校验序列。
所述校验单元同样可为处理器，同样可以通过计算机程序的执行，利用所述校验序列对所述SCI进行校验。
所述发送单元，可对应于收发天线，可用于通信设备与其他通信设备的信息交互。
在一些实施例中，所述通信设备还包括：
加扰单元，配置为利用基于第一比特序列生成第二校验序列对物理侧行共享信道PSSCH的数据进行加扰。
在本实施例中，所述加扰单元同样可对应于处理器，可用于对PSSCH的数据进行加扰。
当所述通信设备为发送设备时；所述第一获取单元110，配置为生成所述SCI。当所述通信设备为接收设备时，所述第一获取单元110，配置为从发送设备接收所述SCI。
如图7所示，本实施例提供一种通信设备，包括：收发器210、存储器220、处理器230及存储在所述存储器220上且被所述处理器230执行的计算机程序；
所述处理器230，分别与所述收发器及所述存储器连接，配置为控制所述收发器的信息收发及所述存储器的信息存储，并实现前述一个或多个技术方案提供的信息处理方法，例如，可以执行如图1、图2及图4所示的信息处理方法。
所述收发器210可以对应于通信设备的收发天线。
所述存储器220可包括各种类型的存储介质。所述存储介质可至少包括：部分用于存储所述计算机程序的非易失性存储介质。
所述处理器230可通过集成电路总线等与所述收发器210及存储器220连接。
所述处理器230可为CPU、MCU、AP、DSP、PLC或ASIC等。
所述处理器230，可以通过执行所述计算机程序，实现以下操作：获取侧行链路控制信息SCI；其中，所述SCI包括：第一比特序列；将所述第一比特序列的指定域的比特置为预设值，以生成第二比特序列；基于所述第二比特序列获取校验序列。
在还有一些实施例中，所述处理器230，，还可配置为实现以下操作：基于所述SCI的信息格式区分出预定义的保留域及所述保留域以外的信息域；将所述第一比特序列的保留域中的比特置为所述预设值，以生成所述第二比特序列。
所述保留域包括：第一类比特；其中，所述第一类比特，用于指示端到端传输的传输参数。所述第一类比特，包括以下至少其中之一：指示是否采用分集传输的指示比特；指示是否采用短传输时间间隔传输方式的指示比特；指示采用的传输模式的指示比特。
此外，所述处理器230还可配置为执行以下操作：基于所述校验序列获取导频序列，其中，所述导频序列，用于物理侧行控制信道的信道测量。
在一些实施例中，所述处理器230，可配置为利用所述校验序列对所述SCI进行校验；当所述SCI通过校验后，发送所述校验序列及所述SCI。
在还有些实施例中，所述处理器230，可配置为利用所述CRC序列对物理侧行共享信道PSSCH的数据进行加扰。
本申请实施例还提供一种计算机存储介质，所述计算机存储介质存储有计算机程序；所述计算机程序被处理器执行后，能够实现前述一个或多个技术方案提供的信息处理方法，例如，如图1、图2及图4所示的方法。
本申请实施例提供的计算机存储介质包括：移动存储设备、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。可选地，所述计算机存储介质可为选为：非易失性存储介质。
以下结合上述任意实施例提供一个具体示例：
示例1：
在本示例中，利用和Rel-14通信标准中PSCCH相同的信息域生成的CRC序列，并且利用该CRC序列生成其对应的PSSCH的DMRS序列。
若需要占用SCI format1中的指示发送分集和/或sTTI和/或传输模式时，为了让Rel-14的终端能够检测PSCCH上承载的新的SCI。一种可行的设计方案就是利用SCI format 1中的保留域中的预留比特来表征指示发送分集和/或sTTI和/或传输模式等物理含义。例如利用一个预留比特来区分是否使用了发送分集，利用一个预留比特区分不同的传输模式。
新的SCI复用SCI format 1中的预留比特，并且用来表征新的物理含义，但是仍然利用预留比特设置为“0”的情况来生成CRC序列，并且利用该CRC序列生成PSSCH的DMRS序列。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个处理模块中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤。
以上所述，仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围。凡按照本申请原理所作的修改，都应当理解为落入本申请的保护范围。
工业实用性
本申请实施例中为了解决SCI的信息承载可能发生变化，会导致不能 正常及正确生成校验码的问题，会将SCI原始的第一比特序列进行指定域的比特值的设置，生成指定域各比特均为预设值的第二比特序列，基于第二比特序列生成校验序列。这样就解决了SCI中的指定域被写入了数据之后导致的校验序列生成异常或错误的问题，从而具有积极的工业效果。且可以通过计算机程序等计算机可执行代码控制发送所述SCI的发送端执行第二比特序列的生成，就可以利用第二比特序列成功并正确生成所述校验序列，从而具有可实现性强及工业上可广泛应用的特点。

Claims (16)

  1. 一种信息处理方法，应用于通信设备中，包括：
    获取侧行链路控制信息SCI；其中，所述SCI包括：第一比特序列；
    将所述第一比特序列的指定域的比特置为预设值，以生成第二比特序列；
    基于所述第二比特序列获取校验序列。
  2. 根据权利要求1所述的方法，其中，所述方法还包括：
    基于所述SCI的信息格式区分出预定义的保留域及所述保留域以外的信息域；
    所述将所述第一比特序列的指定域中的比特置为预设值，以生成第二比特序列，包括：
    将所述第一比特序列的保留域中的比特置为所述预设值，以生成所述第二比特序列。
  3. 根据权利要求2所述的方法，其中，所述保留域包括：第一类比特；
    其中，所述第一类比特，用于指示端到端传输的传输参数。
  4. 根据权利要求3所述的方法，其中，所述第一类比特，包括以下至少其中之一：
    指示是否采用分集传输的指示比特；
    指示是否采用短传输时间间隔传输方式的指示比特；
    指示采用的传输模式的指示比特；
    指示采用的调制编码方案MCS表的指示比特。
  5. 根据权利要求1至4任一项所述的方法，其中，
    所述方法还包括：
    基于所述校验序列生成导频序列，其中，所述导频序列，用于物理侧 行共享信道的信道测量。
  6. 根据权利要求1至4任一项所述的方法，其中，
    所述获取侧行链路控制信息SCI，包括：
    当所述通信设备为发送设备时，生成所述SCI。
  7. 根据权利要求1至4任一项所述的方法，其中，
    所述获取侧行链路控制信息SCI，包括：
    当所述通信设备为接收设备时，从发送设备接收所述SCI。
  8. 一种通信设备，包括：
    第一获取单元，配置为获取侧行链路控制信息SCI；其中，所述SCI包括：第一比特序列；
    生成单元，配置为将所述第一比特序列的指定域的比特置为预设值，以生成第二比特序列；
    第二获取单元，配置为基于所述第二比特序列获取校验序列。
  9. 根据权利要求8所述的通信设备，其中，所述通信设备还包括：
    区分单元，配置为基于所述SCI的信息格式区分出预定义的保留域及所述保留域以外的信息域；
    所述生成单元，配置为将所述第一比特序列的保留域中的比特置为所述预设值，以生成所述第二比特序列。
  10. 根据权利要求9所述的通信设备，其中，所述保留域提取第一类比特；其中，所述第一类比特，用于指示端到端传输的传输参数。
  11. 根据权利要求10所述的方法，其中，所述第一类比特，包括以下至少其中之一：
    指示是否采用分集传输的指示比特；
    指示是否采用短传输时间间隔传输方式的指示比特；
    指示采用的传输模式的指示比特；
    指示采用的调制编码方案MCS表的指示比特。
  12. 根据权利要求8至11任一项所述的通信设备，其中，
    所述通信设备还包括：
    第三获取单元，配置为基于所述校验序列获取导频序列，其中，所述导频序列，用于物理侧行共享信道的信道测量。
  13. 根据权利要求8至11任一项所述的通信设备，其中，
    所述通信设备为发送设备；所述第一获取单元，配置为生成所述SCI。
  14. 根据权利要求8至11任一项所述的通信设备，其中，
    所述通信设备为接收设备，所述第一获取单元，配置为从发送设备接收所述SCI。
  15. 一种通信设备，包括：收发器、存储器、处理器及存储在所述存储器上且被所述处理器执行的计算机程序；
    所述处理器，分别与所述收发器及所述存储器连接，配置为控制所述收发器的信息收发及所述存储器的信息存储，并实现权利要求1至7任一项提供的所述信息处理方法。
  16. 一种计算机存储介质，所述计算机存储介质存储有计算机程序；所述计算机程序被处理器执行后，能够实现权利要求1至7任一项提供的所述信息处理方法。
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US20190215819A1 (en) 2019-07-11
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