WO2015109525A1 - 一种信息发射方法及装置 - Google Patents

一种信息发射方法及装置 Download PDF

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Publication number
WO2015109525A1
WO2015109525A1 PCT/CN2014/071366 CN2014071366W WO2015109525A1 WO 2015109525 A1 WO2015109525 A1 WO 2015109525A1 CN 2014071366 W CN2014071366 W CN 2014071366W WO 2015109525 A1 WO2015109525 A1 WO 2015109525A1
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WO
WIPO (PCT)
Prior art keywords
information
transmitted
transmitter
sequence generator
service
Prior art date
Application number
PCT/CN2014/071366
Other languages
English (en)
French (fr)
Inventor
刘德平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP14879798.8A priority Critical patent/EP3094152A4/en
Priority to PCT/CN2014/071366 priority patent/WO2015109525A1/zh
Priority to CN201480000630.7A priority patent/CN105379404B/zh
Publication of WO2015109525A1 publication Critical patent/WO2015109525A1/zh
Priority to US15/217,358 priority patent/US20160338126A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/61Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an information transmitting method and apparatus.
  • D2D (Device to Device) refers to direct communication between terminal devices or direct communication with the assistance of the network.
  • D2D has three working scenarios, namely network coverage, no network coverage, and partial network coverage.
  • the terminal devices participating in D2D communication are within the coverage of the network; in the work scenario without network coverage, The terminal devices participating in D2D communication are outside the coverage of the network; in the working scenario of partial network coverage, some terminal devices participating in D2D communication are within the coverage of the network, and another part of the terminal devices are outside the coverage of the network.
  • User direct communication can be divided into broadcast, multicast and unicast modes.
  • the broadcast mode transmitter does not limit the specific receiver when transmitting, that is, the transmitter is not clear whether the receiver is receiving, and the network side may not have this information.
  • Multicast and unicast actually have a target receiver.
  • the transmitted signal is usually scrambled.
  • the transmitter uses the sequence generator to generate a pseudo-random code sequence to scramble the information to be transmitted, and transmits the scrambled information.
  • the uplink PUSCH initializes the sequence generator according to the terminal device ID, the codeword sequence number, the slot number, and the cell ID, but the network coverage is in the working scenario of partial network coverage and the work scenario without network coverage.
  • the external terminal device does not have the cell ID information.
  • the sequence generator cannot be initialized according to the terminal device ID, the codeword sequence number, the slot number, and the cell ID, so that the scrambling problem of the information in the D2D cannot be solved.
  • the sequence generator may also be initialized by using the ID of the transmitter in combination with other information to generate a pseudo-random code sequence required for scrambling.
  • D2D Device to Device
  • D2D broadcast mode, multicast mode, and unicast mode mobile terminals can communicate with each other, but a mobile terminal as a receiver may not be clear as a transmitter.
  • the transmitter ID of the mobile terminal In D2D broadcast mode, multicast mode, and unicast mode, mobile terminals can communicate with each other, but a mobile terminal as a receiver may not be clear as a transmitter. The transmitter ID of the mobile terminal.
  • the receiver is to be informed of the transmitter ID, an additional mechanism is needed to notify the other receivers of the transmitter's transmitter ID by the network side device or transmitter.
  • an additional mechanism is needed to notify the other receivers of the transmitter's transmitter ID by the network side device or transmitter.
  • it takes more time for the network side device or the transmitter to transmit data with the receiver, and it takes more transmission resources.
  • For the broadcast mode due to the lack of receiver information, it is even more difficult to inform the receiver of the ID of the transmitter at a certain moment.
  • Embodiments of the present invention provide an information transmitting method and apparatus.
  • the sequence generator is initialized according to the synchronization source ID information and the group ID information, and the transmitter and the receiver or the network side and the receiver can be reduced. Time to transfer data, saving transmission resources.
  • an embodiment of the present invention provides an information transmitting apparatus, which is used for a transmitter, where the apparatus supports a user to directly communicate D2D, and the apparatus includes:
  • a first initialization module configured to initialize a sequence generator according to a synchronization source ID, a group ID, and a slot number
  • a first scrambling module configured to scramble the information to be transmitted according to the pseudo random code sequence generated by the sequence generator
  • the first transmitting module is configured to transmit the scrambled information to be transmitted.
  • the first initialization module includes:
  • the first acquisition unit is used according to ⁇ ! ⁇ ⁇ + ⁇ + ⁇ ⁇ + ⁇ Get the first initial value c mitl , where, the! ⁇ is the group ID, the q is the sequence number of the codeword, the 18 is the slot number, the N sID is the synchronization source ID, the A, the B, and the C Are positive integers;
  • a first initializing unit configured to initialize the sequence generator by using the first initial value.
  • an embodiment of the present invention provides an information transmitting apparatus, which is used for a transmitter, where the apparatus supports a user to directly communicate D2D, and the apparatus includes:
  • a second initialization module configured to initialize a sequence generator according to the service ID information and the slot number
  • a second scrambling module configured to scramble the information to be transmitted according to the pseudo random code sequence generated by the sequence generator
  • a second transmitting module configured to transmit the scrambled information to be transmitted.
  • the D2D is a broadcast mode; the service ID information is obtained from a preset service ID information set; or the service ID information is a slave base station. Obtained in the broadcast service ID information set.
  • the D2D is the broadcast mode
  • a second initializing unit configured to initialize the sequence generator by using the second initial value c mit2 .
  • an embodiment of the present invention provides an information transmitting apparatus, which is used for a receiver, where the apparatus supports a user to directly communicate D2D, and the apparatus includes:
  • a receiving module configured to receive the scrambled to-be-transmitted information transmitted by the transmitter, where the scrambled information to be transmitted is a to-be-transmitted information that is scrambled by the transmitter according to a pseudo-random code sequence generated by the sequence generator.
  • Said pseudorandom code sequence is generated by said transmitter initializing said sequence generator according to a synchronization source ID, a group ID and a slot number;
  • an embodiment of the present invention provides an information transmitting method, which is used for a transmitter, where the transmitter supports a user to directly communicate D2D, and the method includes:
  • the scrambled information to be transmitted is transmitted.
  • the initializing the sequence generator according to the synchronization source ID, the group ID, and the slot number includes:
  • the sequence generator is initialized with the first initial value C mlt .
  • an embodiment of the present invention provides an information transmission method, which is used for a transmitter, where the transmitter supports direct communication with a user, and the method includes:
  • the D2D is a broadcast mode; the service ID information is obtained from a preset service ID information set; or the service ID information is a slave base station. Obtained in the broadcast service ID information set.
  • the D2D is the broadcast mode
  • the initialization sequence is generated according to the service ID information and the slot number , including:
  • n s is the time slot number
  • N D2D is the service ID information
  • D is a positive integer
  • the sequence generator is initialized with the second initial value c mit2 .
  • an embodiment of the present invention provides a method for transmitting information, which is used for a receiver, where the receiver supports direct communication with a user, and the method includes:
  • the scrambled to-be-transmitted information is to-be-transmitted information that is scrambled by the transmitter according to a pseudo-random code sequence generated by a sequence generator, the pseudo-random code sequence Is initialized by the transmitter according to the synchronization source ID, group ID and slot number Generated by the sequence generator;
  • the scrambled information to be transmitted transmitted by the transmitter is descrambled.
  • the transmitter can initialize the sequence generator according to the synchronization source ID, the group ID, and the slot number, or initialize the sequence generator according to the service ID information and the slot number, according to A pseudo-random code sequence generated by the sequence generator, scrambling the information to be transmitted, transmitting the scrambled information to be transmitted, and the receiver capable of receiving the scrambled information to be transmitted transmitted by the transmitter, and scrambling the transmitter
  • the information to be transmitted is descrambled.
  • the scheme initializes the sequence generator by using the synchronization source ID, the group ID and the slot number, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the need for an increase notification.
  • the receiver which enables the receiver to obtain the transmitter ID, saves time for data transmission between the network side device or the transmitter and the receiver, and reduces the occupied transmission resources.
  • FIG. 1 is a schematic structural diagram of an information transmitting apparatus according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a specific implementation manner of an information transmitting apparatus according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of another information transmitting apparatus according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of another specific implementation manner of an information transmitting apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of still another information transmitting apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another transmitter according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of another transmitter according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a receiver according to an embodiment of the present disclosure.
  • FIG. 9 is a flowchart of a method for transmitting information according to an embodiment of the present invention.
  • FIG. 10 is a flowchart of a specific implementation manner of an information transmission method according to an embodiment of the present disclosure;
  • FIG. 11 is a flowchart of another method for transmitting information according to an embodiment of the present invention.
  • FIG. 12 is a flowchart of a specific implementation manner of another information transmission method according to an embodiment of the present invention.
  • FIG. 13 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the technical solution provided by the embodiment of the present invention is applied to an information transmission system, and the information transmission system includes a transmitter and a receiver.
  • the transmitter can initialize the sequence generator according to the synchronization source ID, the group ID and the slot number; or initialize the sequence generator according to the service ID information and the slot number, and process the information according to the pseudo random code sequence generated by the sequence generator
  • the scrambling, transmitting the scrambled information to be transmitted, the receiver is capable of receiving and descrambling the scrambled information to be transmitted transmitted by the transmitter.
  • An embodiment of the present invention provides an information transmitting apparatus 100 for a transmitter, as shown in FIG. 1, including:
  • the first initialization module 101 is configured to initialize the sequence generator according to the synchronization source ID, the group ID, and the slot number.
  • the synchronization source is a synchronization reference source of the transmitter.
  • the base station is generally used as the synchronization source.
  • the synchronization source ID is the cell ID.
  • the terminal device can serve as the synchronization device. Synchronization source.
  • the synchronization source ID is the UE ID.
  • the terminal equipment in the network coverage uses the base station as the synchronization source, and the terminal equipment outside the network coverage refers to the synchronization situation of the terminal equipment in the network coverage, and can synchronize the terminal equipment in the network coverage.
  • the source ID that is, the cell ID corresponding to the terminal device within the network coverage.
  • the group ID is an identification number shared by the terminal device participating in the D2D communication.
  • the slot number refers to the sequence number of the time unit, and the value can be selected from a total of 20 values from 0 to 19.
  • a group of terminal devices participating in D2D communication can refer to the network timing and still utilize the slot number of the network; in a work scenario without network coverage, the network coverage or part of the network can be used.
  • a similar time division method in the covered working scene, that is, using the slot number of the network; the time division method can also use the slotless division, that is, the sequence generator is not initialized by using the slot number of the network.
  • the first scrambling module 102 is configured to scramble the information to be transmitted according to the pseudo random code sequence generated by the sequence generator.
  • the pseudo random code sequence generated by the sequence generator is multiplied by the information to be transmitted, thereby scrambling the information to be transmitted.
  • the first transmitting module 103 is configured to transmit the scrambled information to be transmitted.
  • An information transmitting apparatus is capable of initializing a sequence generator according to a synchronization source ID, a group ID, and a slot number, and scrambling and transmitting the information to be transmitted according to a pseudo random code sequence generated by the sequence generator.
  • the scrambled information to be transmitted Compared with the prior art, the scheme initializes the sequence generator by using the synchronization source ID, the group ID and the slot number, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the notification reception.
  • the process of getting the receiver to obtain the transmitter ID saves the time for data transmission between the transmitter and the receiver, and saves the occupied transmission resources.
  • the first initialization module 101 includes:
  • the first obtaining unit 1011 is configured to be based on ⁇ ! ⁇ ⁇ + ⁇ + ⁇ ⁇ ⁇ Get the first initial value c initl .
  • n groupID is the group ID
  • q is the sequence number of the codeword
  • n s is the slot number
  • N sID is the synchronization source ID
  • A, B, and C are positive integers.
  • the above calculation is to splicing information such as the group ID, the code word number, the slot number, and the synchronization source ID into an N-bit binary value string for initializing the sequence generator.
  • n gTOUpID is the group ID
  • q is the sequence number of the codeword
  • n s is the slot number
  • N sID is the synchronization source ID.
  • a terminal device generally receives or transmits one codeword or two codewords.
  • the sequence number of the codeword may take two values of 0 and 1, indicating whether the scrambled information is the 0th codeword or the 1st codeword.
  • A, B, C, and N can take different values according to actual conditions.
  • the bit of the codeword may have a constant value of 1, and the bit of the codeword is used to indicate the sequence number of the codeword.
  • a terminal device receives or transmits two codewords at most, that is, the terminal device receives or transmits one codeword or two codewords, so the terminal device necessarily receives or transmits the sequence number as 0 codeword.
  • the bit of the codeword is always 1 , indicating that the codeword with the sequence number of 1 is received or transmitted, so as to maximize the value of the pseudo-random code sequence generated by the sequence generator in the D2D communication and the pseudo-random code sequence in the network data communication. The value is different.
  • the first initializing unit 1012 is configured to initialize by using the first initial value c mit ⁇ the sequence generator.
  • the first initial value c mitl is input to the sequence generator, and the sequence generator is initialized according to a generation rule of the pseudo random code sequence in the sequence generator.
  • An information transmitting apparatus provided by an embodiment of the present invention is capable of initializing a sequence generator according to a synchronization source ID, a group ID, and a slot number, and scrambling and transmitting the information to be transmitted according to a pseudo random code sequence generated by the sequence generator.
  • the scrambled information to be transmitted Compared with the prior art, the scheme initializes the sequence generator by using the synchronization source ID, the group ID and the slot number, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the notification reception.
  • the process of getting the receiver to obtain the transmitter ID saves the time for data transmission between the transmitter and the receiver, and reduces the occupied transmission resources.
  • the embodiment of the present invention further provides an information transmitting apparatus 200 for a transmitter, as shown in FIG. 3, including:
  • the second initialization module 201 is configured to initialize the sequence generator according to the service ID information and the slot number.
  • the service ID information is service identification information of the D2D communication, and can be used to distinguish various D2D communication services.
  • the service ID information may be obtained from a preset service ID information set, or may be obtained from a service ID information set broadcast by the base station. Specifically, it can be shipped from the terminal equipment.
  • the terminal device includes a transmitter and a receiver, and the transmitter is based on its own service.
  • the service ID information set selects the service ID information corresponding to the service of the transmitter, and the receiver receives the fixed service ID information set according to the factory-defined and set by the terminal device, and for each service ID information in the service ID information set, The descrambling is attempted one by one; the service ID information set of the general D2D communication of the base station broadcast terminal device may be obtained by the base station broadcasting the service ID information set of the general D2D communication of the terminal device, and the terminal device includes the transmitter and the receiver.
  • the transmitter selects service ID information corresponding to the service of the transmitter in the service ID information set broadcasted by the base station, and the receiver sets the service ID information set broadcasted by the base station when receiving the scrambled information to be transmitted transmitted by the transmitter.
  • De-scrambling is attempted one by one for each service ID information in the set of service ID information.
  • the terminal device that participates in the D2D communication may pre-agreed the service ID information before the communication, and use the pre-agreed service ID information in the process of the communication.
  • the slot number refers to the sequence number of the time unit, and the value can be selected from a total of 20 values from 0 to 19.
  • a group of terminal devices participating in D2D communication can refer to the network timing and still utilize the slot number of the network; in a work scenario without network coverage, the network coverage or part of the network can be used.
  • the second scrambling module 202 is configured to scramble the information to be transmitted according to the pseudo random code sequence generated by the sequence generator.
  • the pseudo random code sequence generated by the sequence generator is multiplied by the information to be transmitted, thereby scrambling the information to be transmitted.
  • the second transmitting module 203 is configured to transmit the scrambled information to be transmitted.
  • An embodiment of the present invention further provides an information transmitting apparatus, which is capable of acquiring service ID information, and initializing a sequence generator according to a slot number and service ID information, and transmitting information according to a pseudo random code sequence generated by the sequence generator. Scrambling, transmitting the scrambled information to be transmitted.
  • the scheme uses the slot number and service ID information to initialize the sequence generator. It avoids the use of the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the need to notify the receiver, so that the receiver gets the transmitter ID, saving the devices or transmitters and receivers on the network side. The time between data transmission is reduced, and the occupied transmission resources are reduced. Further, the D2D (Device to Device) is a broadcast mode.
  • the second initialization module 201 includes:
  • the ⁇ is the slot number
  • the N D2D is the service ID information
  • the D is a positive integer.
  • the second initializing unit 2012 is configured to initialize the sequence generator by using the second initial value 111112 .
  • the second initial value c mit2 is input to the sequence generator, and the sequence generator is initialized according to the generation rule of the pseudo random code sequence in the sequence generator.
  • D2D is a broadcast mode.
  • the service ID information is obtained from a preset service ID information set, or the service ID information is obtained from a service ID information set broadcast by the base station.
  • the initialization sequence generator scrambles the transmitted information according to the pseudo-random code sequence generated by the sequence generator, and transmits the scrambled information to be transmitted.
  • the scheme initializes the sequence generator by using the slot number and the service ID information, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the notification receiver.
  • An embodiment of the present invention provides an information transmitting apparatus 300 for a receiver, as shown in FIG. 5, include:
  • the receiving module 301 is configured to receive the scrambled information to be transmitted transmitted by the transmitter.
  • the scrambled information to be transmitted is information to be transmitted that is scrambled by the transmitter according to the pseudo random code sequence generated by the sequence generator, and the pseudo random code sequence is determined by the transmitter according to the synchronization source ID and the group.
  • I D and slot number are initialized by the sequence generator.
  • the descrambling module 302 is configured to descramble the scrambled information to be transmitted transmitted by the transmitter.
  • the receiver descrambles according to a pseudo-random sequence generated by the sequence generator initialized by the transmitter.
  • a transmitter capable of initializing a sequence generator according to a synchronization source ID, a group ID, and a slot number, and scrambling and transmitting the information according to a pseudo random code sequence generated by the sequence generator
  • the scrambled information to be transmitted the device is capable of receiving the scrambled information to be transmitted transmitted by the transmitter, and descrambling the scrambled information to be transmitted transmitted by the transmitter.
  • the scheme initializes the sequence generator by using the synchronization source ID, the group ID and the slot number, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the notification reception.
  • the process of getting the receiver to obtain the transmitter ID saves the time for data transmission between the transmitter and the receiver, and reduces the occupied transmission resources.
  • the embodiment of the present invention provides a transmitter 400, as shown in FIG. 6, comprising: at least one processor 401, such as a CPU, at least one communication bus 402, a memory 403, at least one network interface 404 or a user interface 405, and a transmitting end 406.
  • Communication bus 402 is used to implement connection communication between these components.
  • the user interface 405 includes a display, a keyboard, a mouse, a touch screen, and the like.
  • Memory 403 may contain high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.
  • Transmitter 406 is used to transmit the scrambled information to be transmitted.
  • the memory 403 can be used to store the synchronization source ID, the group ID, and the slot number, and can also be used to store the pseudo random code sequence generated by the sequence generator, and can also store the information to be transmitted and the scrambled information to be transmitted. Further, the memory 403 can be used to store the sequence number of the first initial value c mit ⁇ p codeword, and can also be used to store the value of the bit of the codeword.
  • the processor 401 is configured to initialize the sequence generator according to the synchronization source ID, the group ID, and the slot number; and, configured to scramble the information to be transmitted according to the pseudo random code sequence generated by the sequence generator; And for controlling the transmitting end 406 to transmit the scrambled information to be transmitted.
  • processor 401 can also be used according to c mit .2 c + N SID ,
  • n groupID is the group ID
  • a code word of q is the number
  • the slot number is the ⁇
  • the N sID is the synchronization source ID
  • the A, the B and the C are both positive integers
  • the code bit has a constant value of 1.
  • a transmitter is capable of initializing a sequence generator according to a synchronization source ID, a group ID, and a slot number, and scrambling the information to be transmitted according to a pseudo random code sequence generated by the sequence generator, and transmitting the The scrambled information to be transmitted, the receiver can receive the scrambled information to be transmitted transmitted by the transmitter, and descramble the transmitted information to be transmitted transmitted by the transmitter.
  • the scheme initializes the sequence generator by using the synchronization source ID, the group ID and the slot number, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the need for an increase notification.
  • the receiver which enables the receiver to obtain the transmitter ID, saves time for data transmission between the transmitter and the receiver, and saves occupied transmission resources.
  • the embodiment of the present invention provides a transmitter 500, as shown in FIG. 7, including: at least one processor 501, such as a CPU, at least one communication bus 502, a memory 503, at least one network interface 504 or a user interface 505, and a transmitting end 506.
  • Communication bus 502 is used to implement connection communication between these components.
  • the user interface 505 includes a display, a keyboard, a mouse, a touch screen, and the like.
  • the memory 503 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the transmitting end 506 is configured to transmit the scrambled information to be transmitted.
  • the memory 503 can be used to store the service ID information and the slot number; and can also be used to store the pseudo random code sequence generated by the sequence generator, and can also store the information to be transmitted and the scrambled information to be transmitted.
  • the memory 503 may be further configured to store a preset service ID information set, a service ID information set broadcast by the base station, and may also be used to store a second initial value c mit2 .
  • the processor 501 may be configured to initialize the sequence generator according to the service ID information and the slot number; and, configured to scramble the information to be transmitted according to the pseudo random code sequence generated by the sequence generator; and, The control transmitter 506 transmits the scrambled information to be transmitted.
  • the D2D is in a broadcast mode, and the service ID information is obtained from a preset service ID information set; or the service ID information is obtained from a service ID information set broadcasted by the base station.
  • D2D is a broadcast mode
  • Initialization sequence generator scrambles the information to be transmitted according to the pseudo-random code sequence generated by the sequence generator, and transmits the scrambled information to be transmitted.
  • the scheme initializes the sequence generator by using the slot number and the service ID information, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the notification receiver.
  • the process of obtaining the transmitter ID by the receiver saves time for data transmission between the network side device or the transmitter and the receiver, and reduces the occupied transmission resources.
  • the embodiment of the present invention provides a receiver 600, as shown in FIG. 8, including: at least one processor 601, such as a CPU, at least one communication bus 602, a memory 603, at least one network interface 604 or a user interface 605, and a transmitting end 606.
  • Communication bus 602 is used to implement connection communication between these components.
  • the user interface 605 includes a display, a keyboard, a mouse, and a touch screen. And other equipment.
  • the memory 603 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the receiving end 606 is configured to receive the scrambled information to be transmitted transmitted by the transmitter.
  • the memory 603 can be used to store the scrambled information to be transmitted transmitted by the transmitter received by the receiver, and can also store the descrambled information.
  • the processor 601 may be configured to receive the scrambled to-be-transmitted information transmitted by the transmitter, where the scrambled to-be-transmitted information is scrambled by the transmitter according to a pseudo-random code sequence generated by the sequence generator. Transmitting information, the pseudorandom code sequence being generated by the transmitter initializing the sequence generator according to a synchronization source ID, a group ID, and a slot number; and, for adding the PDCCH to the transmitter The disturbed information to be transmitted is descrambled.
  • a transmitter is capable of initializing a sequence generator according to a synchronization source ID, a group ID, and a slot number, and scrambling the information to be transmitted according to a pseudo random code sequence generated by the sequence generator, and transmitting The scrambled information to be transmitted
  • the receiver can receive the scrambled information to be transmitted transmitted by the transmitter, and descramble the transmitted information to be transmitted transmitted by the transmitter.
  • the scheme initializes the sequence generator by using the synchronization source ID, the group ID and the slot number, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the need for an increase notification.
  • the receiver which enables the receiver to obtain the transmitter ID, saves time for data transmission between the transmitter and the receiver, and saves occupied transmission resources.
  • An embodiment of the present invention provides an information transmission method, which is used in a transmitter, as shown in FIG. 9, and includes:
  • the synchronization source ID, the group ID, and the slot number are initialized, and the sequence generator is initialized.
  • the synchronization source is a synchronization reference source of the transmitter.
  • the base station is generally used as the synchronization source.
  • the synchronization source ID is the cell ID.
  • the terminal device can serve as the synchronization device. Synchronization source.
  • the synchronization source ID is the UE ID.
  • the terminal equipment in the network coverage uses the base station as the synchronization source, and the terminal equipment outside the network coverage refers to the synchronization situation of the terminal equipment in the network coverage, and can synchronize the terminal equipment in the network coverage.
  • the source ID that is, the cell ID corresponding to the terminal device within the network coverage.
  • the group ID is an identification number shared by the terminal device participating in the D2D communication.
  • the slot number refers to the sequence number of the time unit, and the value can be selected from a total of 20 values from 0 to 19.
  • a group of terminal devices participating in D2D communication can refer to the network timing and still utilize the slot number of the network; in a work scenario without network coverage, the network coverage or part of the network can be used.
  • a similar time division method in the covered working scene, that is, using the slot number of the network; the time division method can also use the slotless division, that is, the sequence generator is not initialized by using the slot number of the network.
  • the transmitter can initialize the sequence generator according to the synchronization source ID, the group ID, and the slot number, and scramble the transmission information according to the pseudo random code sequence generated by the sequence generator.
  • the scrambled information to be transmitted.
  • the scheme initializes the sequence generator by using the synchronization source ID, the group ID and the slot number, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the notification reception.
  • the process of obtaining the transmitter ID by the receiver saves the time for data transmission between the device on the network side or the transmitter and the receiver, and reduces the occupied transmission resources.
  • the embodiment of the present invention further provides a specific solution of the information transmission method, and further refines the execution process of the 701 shown in FIG. 7011 and 7012, as shown in Figure 10, include:
  • n groupID is the group ID
  • q is the serial number of the codeword
  • n s is the slot number
  • N sID is the synchronization source ID.
  • a terminal device generally receives or transmits one codeword or two codewords.
  • the sequence number of the codeword may take two values of 0 and 1, indicating whether the scrambled information is the 0th codeword or the 1st codeword.
  • A, B, C, and N can take different values according to actual conditions.
  • the values of specific A, B, and C are determined by group ID, codeword serial number, time slot number, and synchronization.
  • q is 0 or 1
  • the bit of the codeword may have a constant value of 1, and the bit of the codeword is used to indicate the sequence number of the codeword.
  • a terminal device receives or transmits two codewords at most, that is, the terminal device receives or transmits one codeword or two codewords, so the terminal device necessarily receives or transmits the sequence number as 0 codeword.
  • the bit of the codeword is always 1 , indicating that the codeword with the sequence number of 1 is received or transmitted, so as to maximize the value of the pseudo-random code sequence generated by the sequence generator in the D2D communication and the pseudo-random code sequence in the network data communication. The value is different.
  • the first initial value c mit l is input to the sequence generator, and the sequence generator is initialized according to a generation rule of the pseudo random code sequence in the sequence generator.
  • the initialization sequence generator scrambles the information to be transmitted according to the pseudo random code sequence generated by the sequence generator, and transmits the scrambled information to be transmitted.
  • the scheme uses the synchronization source ID, the group ID and the slot number to splicing information such as the synchronization source ID, the group ID and the slot number into a binary value string, and uses the sequence of the binary value string pair.
  • the generator is initialized, avoiding the use of the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the need to notify the receiver, so that the receiver obtains the transmitter ID, saving the device or transmitter on the network side.
  • the time for data transmission with the receiver, and the occupied transmission resources are reduced.
  • the embodiment of the present invention further provides an information transmitting method, which is used in a transmitter, as shown in FIG.
  • the service ID information is service identification information of the D2D communication, and can be used to distinguish various D2D communication services.
  • the service ID information may be obtained from a preset service ID information set, or may be obtained from a service ID information set broadcast by the base station. Specifically, it can be shipped from the terminal equipment.
  • the terminal device includes a transmitter and a receiver, and the transmitter is based on its own service.
  • the service ID information set selects the service ID information corresponding to the service of the transmitter, and the receiver receives the fixed service ID information set according to the factory-defined and set by the terminal device, and for each service ID information in the service ID information set, The descrambling is attempted one by one; the service ID information set of the general D2D communication of the base station broadcast terminal device may be obtained by the base station broadcasting the service ID information set of the general D2D communication of the terminal device, and the terminal device includes the transmitter and the receiver.
  • the transmitter selects service ID information corresponding to the service of the transmitter in the service ID information set broadcasted by the base station, and the receiver sets the service ID information set broadcasted by the base station when receiving the scrambled information to be transmitted transmitted by the transmitter.
  • De-scrambling is attempted one by one for each service ID information in the set of service ID information.
  • the terminal device that participates in the D2D communication may pre-agreed the service ID information before the communication, and use the pre-agreed service ID information in the process of the communication.
  • the slot number refers to the sequence number of the time unit, and the value can be selected from a total of 20 values from 0 to 19.
  • a group of terminal devices participating in D2D communication can refer to the network timing and still utilize the slot number of the network; in a work scenario without network coverage, the network coverage or part of the network can be used.
  • the scrambled information to be transmitted is transmitted.
  • the embodiment of the invention further provides an information transmitting method, the transmitter can obtain the service ID information, and according to the slot number and the service ID information, initialize the sequence generator, and send the information according to the pseudo random code sequence generated by the sequence generator. Scrambling, transmitting the scrambled information to be transmitted.
  • the scheme initializes the sequence generator by using the slot number and the service ID information, and avoids using the transmitter ID to mix other information to initialize the sequence generator.
  • the process of notifying the receiver and obtaining the transmitter ID is saved, which saves time for data transmission between the network side device or the transmitter and the receiver, and reduces the occupied transmission resources.
  • the embodiment of the present invention further provides a specific solution of the information transmission method, and further refines the execution process of the 801 shown in FIG. 8011 and 8012, as shown in Figure 12, include:
  • the second initial value 0 111112 is obtained .
  • N D2D is the service ID information
  • D is a positive integer.
  • the second initial value c mit2 is input to the sequence generator, and the sequence generator is initialized according to the generation rule of the pseudo random code sequence in the sequence generator.
  • the initialization sequence generator scrambles the transmitted information according to the pseudo-random code sequence generated by the sequence generator, and transmits the scrambled information to be transmitted.
  • the scheme initializes the sequence generator by using the slot number and the service ID information, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the notification receiver.
  • An embodiment of the present invention provides an information transmitting method, which is used in a receiver, as shown in FIG. 13, and includes:
  • the scrambled information to be transmitted is information to be transmitted that is scrambled by the transmitter according to a pseudo random code sequence generated by the sequence generator, and the pseudo random code sequence is determined by the transmitter according to the synchronization source ID, the group ID, and the slot number.
  • Initialized by the sequence generator. 602. Perform descrambling on the scrambled information to be transmitted transmitted by the transmitter.
  • the receiver descrambles according to a pseudo-random sequence generated by the sequence generator initialized by the transmitter.
  • the transmitter can initialize the sequence generator according to the synchronization source ID, the group ID, and the slot number, and scramble the transmission information according to the pseudo random code sequence generated by the sequence generator.
  • the receiver can receive the scrambled information to be transmitted transmitted by the transmitter, and descramble the transmitted information to be transmitted transmitted by the transmitter.
  • the scheme initializes the sequence generator by using the synchronization source ID, the group ID and the slot number, and avoids using the transmitter ID to mix other information to initialize the sequence generator, thereby eliminating the notification reception.
  • the process of obtaining the transmitter ID by the receiver saves the time for data transmission between the transmitter and the receiver, and saves the occupied transmission resources.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

Abstract

本发明实施例公开了一种信息发射方法及装置,涉及通信技术领域,能够在用户直接通信中,对序列生成器进行初始化,并减少发射机与接收机之间传输数据的时间,节省传输资源。本发明的方法包括:发射机根据同步源ID、组ID和时隙号,初始化序列生成器;根据所述序列生成器产生的伪随机码序列,对待发射信息加扰;发射经过加扰的所述待发射信息;接收机接收发射机发射的经过加扰的待发射信息;对所述发射机发射的所述经过加扰的待发射信息进行解扰。本发明适用于发射机对待发射信息进行加扰并发射的场景。

Description

一种信息发射方法及装置 技术领域
本发明涉及通信技术领域, 尤其涉及一种信息发射方法及装置。
背景技术
D2D ( Device to Device,用户直接通信)是指终端设备之间直接通信, 或者在网络的辅助下进行直接通信。 D2D有三种工作场景, 分别是网络覆 盖、 无网络覆盖和部分网络覆盖, 在网络覆盖的工作场景中, 参与 D2D通 信的终端设备都在网络的覆盖范围内; 在无网络覆盖的工作场景中, 参与 D2D通信的终端设备都在网络的覆盖范围外;在部分网络覆盖的工作场景 中, 参与 D2D通信的一部分终端设备在网络的覆盖范围内, 另一部分终端 设备在网络的覆盖范围外。
用户直接通信可以分为广播, 组播和单播模式, 其中广播模式发射机 发射时不限定具体的接收机, 即发射机不清楚有没有接收机在接收, 网络 侧可能不具备这个信息。 而组播和单播实际上有目标接收机。
在无线通信过程中, 无线空间存在各种各样的信号, 为了接收机更好的接 收有用信号, 去除不必要的干扰, 通常会对发射信号进行加扰处理。 发射 机利用序列生成器产生伪随机码序列对待发射的信息进行加扰操作,并将 加扰的信息发射。例如,在 3GPP LTE系统上行 PUSCH根据终端设备 ID、 码字的序号、 时隙号和小区 ID初始化序列生成器, 但是, 在部分网络覆 盖的工作场景和无网络覆盖的工作场景下,网络覆盖范围外的终端设备没 有小区 ID信息, 所以在现有技术中,无法根据终端设备 ID、码字的序号、 时隙号和小区 ID初始化序列生成器,导致无法解决 D2D中信息的加扰问 题。 在现有技术中, 也可以利用发射机的 ID再结合其他一些信息对序列 生成器进行初始化, 产生加扰所需的伪随机码序列。 在 D2D ( Device to Device, 用户直接通信) 中, 移动终端间直接通信或者在网络的辅助下进 行直接通信。 在 D2D的广播方式、 组播方式和单播方式中, 移动终端之 间能够相互通信,但是作为接收机的移动终端可能并不清楚作为发射机的 移动终端的发射机 ID。 如果想要使接收机得知发射机 ID, 需要另外建立 机制, 由网络侧的设备或者发射机通知其他接收机该发射机的发射机 ID。 但是, 增加通知接收机, 使接收机得到发射机 ID的这个过程, 网络侧的 设备或者发射机与接收机进行数据传输需要花费更多的时间,而且需要占 用更多的传输资源。 而对于广播模式, 由于接收机信息的缺失, 更无法通 知接收机某个时刻发射机的 ID。
发明内容
本发明的实施例提供一种信息发射方法及装置, 在 D2D 中, 依据同 步源 ID信息, 组 ID信息对序列生成器进行初始化, 能够减少发射机与 接收机之间或者网络侧与接收机之间传输数据的时间, 节省传输资源。
为达到上述目的, 本发明的实施例釆用如下技术方案:
第一方面, 本发明实施例提供一种信息发射装置, 用于发射机, 所述 装置支持用户直接通信 D2D, 所述装置包括:
第一初始化模块, 用于根据同步源 ID、 组 ID和时隙号, 初始化序列 生成器;
第一加扰模块, 用于根据所述序列生成器产生的伪随机码序列, 对待 发射信息加扰;
第一发射模块, 用于发射经过加扰的所述待发射信息。 结合第一方面, 在第一种可能的实现方式中, 所述第一初始化模块, 包括:
第一获取单元, 用于根据^^!^ ^ + ^^ + ^ ^^ + ^ 得到第 一初始值 cmitl , 其中, 所述!^ ^为所述组 ID , 所述 q为码字的序号, 所述 1 8为所述时隙号, 所述 NsID为所述同步源 ID , 所述 A、 所述 B和所述 C均为 正整数;
第一初始化单元, 用于利用所述第一初始值^^对所述序列生成器进 行初始化。
结合第一方面的第一种可能的实现方式, 在第二种可能的实现方式 中, 所述码字的比特位恒取值为 1。 第二方面, 本发明实施例提供一种信息发射装置, 用于发射机, 所述 装置支持用户直接通信 D2D, 所述装置包括:
第二初始化模块,用于根据业务 I D信息和时隙号,初始化序列生成器; 第二加扰模块, 用于根据所述序列生成器产生的伪随机码序列, 对待 发射信息加扰;
第二发射模块, 用于发射经过加扰的所述待发射信息。
结合第二方面, 在第一种可能的实现方式中, 所述 D2D为广播模式; 所述业务 ID信息是从预设的业务 ID信息集合中获取的; 或者,所述业务 ID 信息是从基站广播的业务 ID信息集合中获取的。
结合第二方面或第二方面的第一种可能的实现方式,在第二种可能的 实现方式中, 所述 D2D为所述广播模式; 所述第二初始化模块, 包括: 第二获取单元, 用于根据£^2 = / 2」.2^3 + ^^ , 得到第二初始值 cmit2, 其中, 所述 ^为所述时隙号, 所述 ND2D为所述业务 ID信息, 所述 D为正整 数;
第二初始化单元, 用于利用所述第二初始值 cmit2对所述序列生成器进 行初始化。
第三方面, 本发明实施例提供一种信息发射装置, 用于接收机, 所述 装置支持用户直接通信 D2D, 所述装置包括:
接收模块, 用于接收发射机发射的经过加扰的待发射信息, 所述经过 加扰的待发射信息是所述发射机根据序列生成器产生的伪随机码序列加 扰的待发射信息, 所述伪随机码序列是由所述发射机根据同步源 ID、 组 I D和时隙号初始化所述序列生成器产生的;
解扰模块,用于对所述发射机发射的所述经过加扰的待发射信息进行 解扰。 第四方面, 本发明实施例提供一种信息发射方法, 用于发射机, 所述 发射机支持用户直接通信 D2D , 所述方法包括:
根据同步源 ID、 组 ID和时隙号, 初始化序列生成器;
根据所述序列生成器产生的伪随机码序列, 对待发射信息加扰; 发射经过加扰的所述待发射信息。
结合第四方面,在第一种可能的实现方式中, 所述根据同步源 ID、 组 ID和时隙号, 初始化序列生成器, 包括:
根据^^!^ ^ + ^ ^ ^ ^ ^得到第一初始值 Cmltl ,其中, 所述!^ 为所述组 ID , 所述 q为码字的序号, 所述 ^为所述时隙号, 所 述 NsID为所述同步源 ID , 所述 A、 所述 B和所述 C均为正整数;
利用所述第一初始值 Cmlt对所述序列生成器进行初始化。
结合第四方面的第一种可能的实现方式, 在第二种可能的实现方式 中, 所述码字的比特位恒取值为 1。 第五方面, 本发明实施例提供一种信息发射方法, 用于发射机, 所述 发射机支持用户直接通信 D2D , 所述方法包括:
根据所述业务 I D信息和时隙号, 初始化序列生成器;
根据所述序列生成器产生的伪随机码序列, 对待发射信息加扰; 发射经过加扰的所述待发射信息。
结合第四方面, 在第一种可能的实现方式中, 所述 D2D为广播模式; 所述业务 ID信息是从预设的业务 ID信息集合中获取的; 或者,所述业务 ID 信息是从基站广播的业务 ID信息集合中获取的。
结合第四方面或第四方面的第一种可能的实现方式,在第二种可能的 实现方式中, 所述 D2D为所述广播模式; 所述根据业务 ID信息和时隙号, 初始化序列生成器, 包括:
根据^^ ^!^ ^^^ + , 得到第二初始值 cmit2, 其中, 所述 ns为所 述时隙号, 所述 ND2D为所述业务 ID信息, 所述 D为正整数;
利用所述第二初始值 cmit2对所述序列生成器进行初始化。
第六方面, 本发明实施例提供一种信息发射方法, 用于接收机, 所述 接收机支持用户直接通信 D2D , 所述方法包括:
接收发射机发射的经过加扰的待发射信息, 所述经过加扰的待发射信 息是所述发射机根据序列生成器产生的伪随机码序列加扰的待发射信息, 所述伪随机码序列是由所述发射机根据同步源 ID、 组 ID和时隙号初始化 所述序列生成器产生的;
对所述发射机发射的所述经过加扰的待发射信息进行解扰。 本发明实施例提供的一种信息发射方法及装置,发射机能够根据同步 源 ID、 组 ID和时隙号, 初始化序列生成器, 或者根据业务 ID信息和时 隙号, 初始化序列生成器, 根据序列生成器产生的伪随机码序列, 对待发 射信息加扰,发射经过加扰的待发射信息,接收机能够接收发射机发射的 经过加扰的待发射信息, 对发射机发射的经过加扰的待发射信息进行解 扰。 与现有技术相比, 本方案利用同步源 ID、 组 ID和时隙号对序列生成 器进行初始化, 避免了使用发射机 ID混合其他一些信息对序列生成器进 行初始化,从而省去了增加通知接收机,使接收机得到发射机 ID的过程, 节省了在网络侧的设备或发射机和接收机之间进行数据传输的时间,而且 减少了占用的传输资源。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例中所 需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本 发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动 的前提下, 还可以根据这些附图获得其它的附图。
图 1为本发明实施例提供的一种信息发射装置的结构示意图; 图 2为本发明实施例提供的一种信息发射装置的一种具体实现方式的 结构示意图;
图 3为本发明实施例提供的另一种信息发射装置的结构示意图; 图 4为本发明实施例提供的另一种信息发射装置的一种具体实现方式 的结构示意图;
图 5为本发明实施例提供的又一种信息发射装置的结构示意图; 图 6为本发明实施例提供的另一种发射机的结构示意图;
图 7为本发明实施例提供的另一种发射机的结构示意图;
图 8为本发明实施例提供的一种接收机的结构示意图;
图 9为本发明实施例提供的一种信息发射方法的流程图; 图 10为本发明实施例提供的一种信息发射方法的一种具体实现方式 的流程图;
图 11为本发明实施例提供的另一种信息发射方法的流程图;
图 12为本发明实施例提供的另一种信息发射方法的一种具体实现方 式的流程图;
图 13为本发明实施例提供的又一种信息发射方法的流程图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进 行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的 范围。
本发明实施例提供的技术方案应用于信息传输系统,信息传输系统包 括发射机和接收机。 发射机能够根据同步源 ID、 组 ID和时隙号, 初始化 序列生成器; 或者根据业务 ID信息和时隙号, 初始化序列生成器, 并根据 序列生成器产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待 发射信息, 接收机能够接收并解扰发射机发射的经过加扰的待发射信息。 本发明实施例提供了一种信息发射装置 100 ,用于发射机,如图 1所示 , 包括:
第一初始化模块 101 , 用于根据同步源 ID、 组 ID和时隙号, 初始化 序列生成器。
其中, 同步源是发射机的同步参考源, 在网络覆盖的工作场景中, 一 般由基站作为同步源, 此时, 同步源 ID即小区 ID; 在无网络覆盖的工作 场景中, 终端设备可以作为同步源, 此时, 同步源 ID为 UE ID。 在部分网 络覆盖的工作场景中, 网络覆盖内的终端设备以基站为同步源, 而网络覆 盖外的终端设备参考网络覆盖内的终端设备的同步情况,可以釆用网络覆 盖内的终端设备的同步源 ID , 即与网络覆盖内的终端设备对应的小区 ID。
其中, 组 ID是参与 D2D通信的终端设备共享的一个标识号。 在网络覆 盖的工作场景中, 时隙号是指时间单元的序号, 取值可以从 0到 19共 20个 数值中选取。 在部分网络覆盖的工作场景中, 参与 D2D通信的一个组的终 端设备可以参考网络定时, 依然能够利用网络的时隙号; 在无网络覆盖的 工作场景中,可以使用与网络覆盖或与部分网络覆盖的工作场景中类似的 时间分割方法, 即利用网络的时隙号; 时间分割方法也可以釆用无时隙分 割, 即不利用网络的时隙号对序列生成器进行初始化。
第一加扰模块 102 , 用于根据所述序列生成器产生的伪随机码序列, 对待发射信息加扰。
其中, 将序列生成器产生的伪随机码序列与待发射信息相乘, 从而对 待发射信息进行加扰。
第一发射模块 103 , 用于发射经过加扰的所述待发射信息。
本发明实施例提供的一种信息发射装置, 该装置能够根据同步源 ID、 组 ID和时隙号,初始化序列生成器,根据序列生成器产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发射信息。 与现有技术相比, 本方 案利用同步源 ID、 组 ID和时隙号对序列生成器进行初始化, 避免了使用 发射机 ID混合其他一些信息对序列生成器进行初始化,从而省去了通知接 收机, 使接收机得到发射机 ID的过程, 节省了在发射机和接收机之间进行 数据传输的时间, 而且节省了占用的传输资源。
进一步的, 第一初始化模块 101 , 如图 2所示, 包括:
第一获取单元 1011 , 用于根据^^!^ ^ + ^^ + ^ ^^ ^ 得 到第一初始值 cinitl
其中, ngroupID为组 ID, q为码字的序号, ns为时隙号, NsID为同步源 ID , A、 B和 C均为正整数。 上述计算是把组 ID、 码字的序号、 时隙号以及同步 源 ID等信息拼接为一个 N位的二进制数值串, 用来初始化序列生成器。 ngTOUpID为组 ID , q为码字的序号, ns为时隙号, NsID为同步源 ID。 一个终端 设备一般接收或者发送一个码字或两个码字, 码字的序号可取 0和 1两个 值, 代表被加扰的信息是第 0码字还是第 1码字。 这里的 A、 B、 C和 N可以 根据实际情况取不同的值, 具体 A、 B和 C的取值由组 ID、 码字的序号、 时 隙号以及同步源 ID等信息的位数决定, 比如: NsID是 9位, 则 C=9; 若 取 值范围为 0- 19 , 且 1 8为整数, 12]是对 ns/2的数值进行向下取整的操作, 则 L^ / 2」'的值可以用 4比特的二进制数表示, 则8= +4=9+4=13 , 若 q取值 为 0 或 1 , 则 q 的 取值 可 以 用 1 比 特 二 进 制 数 表 示 , 则 Α=Β+1=9+4+1 = 13+1 = 14。
可选的, 码字的比特位可以恒取值为 1 , 码字的比特位用于表示码字 的序号。 在传统的网络数据传输的场景下, 一个终端设备最多接收或者发 射两个码字, 也就是说, 终端设备接收或发射一个码字或者两个码字, 所 以终端设备必然会接收或发射序号为 0的码字。 码字的比特位恒取 1 , 表示 接收或发射序号为 1的码字, 从而尽量使 D2D通信中的序列生成器产生的 伪随机码序列的取值与网络数据通信中的伪随机码序列的取值有所区别。
第一初始化单元 1012 , 用于利用所述第一初始值 cmit †所述序列生成 器进行初始化。
其中, 将得到的第一初始值 cmitl输入序列生成器, 根据序列生成器中 的伪随机码序列的生成规则, 对序列生成器进行初始化。
本发明实施例提供的一种信息发射装置, 该装置能够根据同步源 ID、 组 ID和时隙号,初始化序列生成器,根据序列生成器产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发射信息。 与现有技术相比, 本方 案利用同步源 ID、 组 ID和时隙号对序列生成器进行初始化, 避免了使用 发射机 ID混合其他一些信息对序列生成器进行初始化,从而省去了通知接 收机, 使接收机得到发射机 ID的过程, 节省了在发射机和接收机之间进行 数据传输的时间, 而且减少了占用的传输资源。 本发明实施例还提供了一种信息发射装置 200 , 用于发射机, 如图 3 所示, 包括:
第二初始化模块 201 , 用于根据所述业务 ID信息和时隙号, 初始化序 列生成器。
其中, 业务 ID信息是 D2D通信的业务标识信息, 可以用于区分各种不 同的 D2D通信业务。 业务 ID信息可以从预设的业务 ID信息集合中获取, 也 可以从基站广播的业务 ID信息集合中获取。 具体的, 可以在终端设备出厂 时规定并设置好一个通用的 D2D通信的业务 ID信息集合,从这一个通用的 D2D通信的业务 ID信息集合中获取业务 ID信息,终端设备包括发射机和接 收机,发射机根据自身的业务在业务 ID信息集合中选择与发射机的业务对 应的业务 ID信息,而接收机接收时根据终端设备出厂规定并设置的固定的 业务 ID信息集合, 针对业务 ID信息集合中的每一个业务 ID信息, 逐一尝 试解扰; 也可以由基站广播终端设备的通用的 D2D通信的业务 ID信息集 合,从基站广播终端设备的通用的 D2D通信的业务 ID信息集合获取业务 ID 信息, 终端设备包括发射机和接收机, 发射机在基站广播的业务 ID信息集 合中选择与发射机的业务对应的业务 ID信息 ,而接收机接收发射机发射的 经过加扰的待发射信息时,根据基站广播的业务 ID信息集合,针对业务 ID 信息集合中的每一个业务 ID信息, 逐一尝试解扰。 可选的, 还可以由参与 D2D通信的终端设备在通信前预先约定业务 ID信息,在通信的过程中釆用 预先约定业务 ID信息。
其中, 在网络覆盖的工作场景中, 时隙号是指时间单元的序号, 取值 可以从 0到 19共 20个数值中选取。在部分网络覆盖的工作场景中,参与 D2D 通信的一个组的终端设备可以参考网络定时, 依然能够利用网络的时隙 号; 在无网络覆盖的工作场景中, 可以使用与网络覆盖或与部分网络覆盖 的工作场景中类似的时间分割方法, 即利用网络的时隙号; 时间分割方法 也可以釆用无时隙分割, 即不利用网络的时隙号对序列生成器进行初始 化。
第二加扰模块 202 , 用于根据所述序列生成器产生的伪随机码序列, 对待发射信息加扰。
其中, 将序列生成器产生的伪随机码序列与待发射信息相乘, 从而对 待发射信息进行加扰。
第二发射模块 203 , 用于发射经过加扰的所述待发射信息。
本发明实施例还提供的一种信息发射装置, 该装置能够获取业务 ID 信息, 并根据时隙号和业务 ID信息, 初始化序列生成器, 根据序列生成器 产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发射信息。 与现有技术相比,本方案利用时隙号和业务 ID信息对序列生成器进行初始 化, 避免了使用发射机 ID混合其他一些信息对序列生成器进行初始化, 从 而省去了通知接收机, 使接收机得到发射机 ID的过程, 节省了在网络侧的 设备或发射机和接收机之间进行数据传输的时间,而且减少了占用的传输 资源。 进一步的, D2D ( Device to Device , 用户直接通信) 为广播模式, 如 图 4所示, 第二初始化模块 201 , 包括:
第二获取单元 2011 , 用于根据£^2 = / 2」.2^ + ^^ , 得到第二初始值
Cinit2。
其中, 所述 ^为所述时隙号, 所述 ND2D为所述业务 ID信息, 所述 D为 正整数。 D是业务 ID信息的比特数, 例如: 业务 ID信息占用 9位比特位, 则 D=9。
第二初始化单元 2012 , 用于利用所述第二初始值 111112对所述序列生成 器进行初始化。
其中, 将得到的第二初始值 cmit2输入序列生成器, 根据序列生成器中 的伪随机码序列的生成规则, 对序列生成器进行初始化。
进一步的, D2D为广播模式。 业务 ID信息是从预设的业务 ID信息集合 中获取的, 或者, 业务 ID信息是从基站广播的业务 ID信息集合中获取的。
本发明实施例还提供的一种信息发射装置,该装置能够从预设的业务 ID信息集合或基站广播的业务 ID信息集合中获取业务 ID信息, 并根据时 隙号和业务 ID信息, 利用 ^1ιώ2 = / 2」.2ΰ + ^初始化序列生成器, 根据序 列生成器产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发 射信息。 与现有技术相比, 本方案利用时隙号和业务 ID信息对序列生成器 进行初始化,避免了使用发射机 ID混合其他一些信息对序列生成器进行初 始化, 从而省去了通知接收机, 使接收机得到发射机 ID的过程, 节省了在 网络侧的设备或发射机和接收机之间进行数据传输的时间,而且减少了占 用的传输资源。 本发明实施例提供了一种信息发射装置 300 ,用于接收机,如图 5所示 , 包括:
接收模块 301 , 用于接收发射机发射的经过加扰的待发射信息。
其中, 经过加扰的待发射信息是发射机根据序列生成器产生的伪随机 码序列加扰的待发射信息, 伪随机码序列是由发射机根据同步源 ID、 组
I D和时隙号初始化序列生成器产生的。
解扰模块 302 , 用于对所述发射机发射的所述经过加扰的待发射信息 进行解扰。
其中,接收机根据发射机初始化的序列生成器产生的伪随机序列进行 解扰。
本发明实施例提供的一种信息发射装置, 发射机能够根据同步源 ID、 组 ID和时隙号,初始化序列生成器,根据序列生成器产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发射信息, 该装置能够接收发射机 发射的经过加扰的待发射信息,对发射机发射的经过加扰的待发射信息进 行解扰。 与现有技术相比, 本方案利用同步源 ID、 组 ID和时隙号对序列 生成器进行初始化,避免了使用发射机 ID混合其他一些信息对序列生成器 进行初始化, 从而省去了通知接收机, 使接收机得到发射机 ID的过程, 节 省了在发射机和接收机之间进行数据传输的时间,而且减少了占用的传输 资源。 本发明实施例提供了一种发射机 400 , 如图 6所示, 包括: 至少一个处 理器 401 , 例如 CPU, 至少一个通信总线 402 , 存储器 403 , 至少一个网络 接口 404或者用户接口 405 , 发射端 406。 通信总线 402用于实现这些组件之 间的连接通信。 可选的, 用户接口 405包括显示器、 键盘、 鼠标、 触摸屏 等设备。 存储器 403可能包含高速 RAM存储器, 也可能还包括非不稳定的 存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。 发射端 406用 于发射经过加扰的待发射信息。
具体的, 存储器 403可以用于存储同步源 ID、 组 ID和时隙号, 还可 以用于存储序列生成器产生的伪随机码序列,还可以存储待发射信息和经 过加扰的待发射信息。 进一步的, 存储器 403可以用于存储第一初始值 cmit^p码字的序号, 还可以用于存储码字的比特位的取值。
具体的, 处理器 401可以用于根据同步源 ID、 组 ID和时隙号, 初始 化序列生成器; 以及, 用于根据所述序列生成器产生的伪随机码序列, 对 待发射信息加扰; 以及, 用于控制发射端 406发射经过加扰的所述待发射 信息。
进 一 步 的 , 处 理 器 401 还 可 以 用 于 根 据 cmit .2c + NSID ,
Figure imgf000014_0001
得到初始值 cmit , 其中, 所述 ngroupID 为所述组 ID , 所述 q为码字的序号, 所述 ^为所述时隙号, 所述 NsID为所述 同步源 ID , 所述 A、 所述 B和所述 C均为正整数; 以及, 用于利用所述初始 值 cmit对所述序列生成器进行初始化。
可选的, 码字的比特位恒取值为 1。
本发明实施例提供的一种发射机, 发射机能够根据同步源 ID、 组 ID 和时隙号, 初始化序列生成器, 根据序列生成器产生的伪随机码序列, 对 待发射信息加扰, 发射经过加扰的待发射信息, 接收机能够接收发射机发 射的经过加扰的待发射信息,对发射机发射的经过加扰的待发射信息进行 解扰。 与现有技术相比, 本方案利用同步源 ID、 组 ID和时隙号对序列生 成器进行初始化,避免了使用发射机 ID混合其他一些信息对序列生成器进 行初始化, 从而省去了增加通知接收机, 使接收机得到发射机 ID的过程, 节省了在发射机和接收机之间进行数据传输的时间,而且节省了占用的传 输资源。 本发明实施例提供了一种发射机 500 , 如图 7所示, 包括: 至少一个处 理器 501 , 例如 CPU , 至少一个通信总线 502 , 存储器 503 , 至少一个网络 接口 504或者用户接口 505 , 发射端 506。 通信总线 502用于实现这些组件之 间的连接通信。 可选的, 用户接口 505包括显示器、 键盘、 鼠标、 触摸屏 等设备。 存储器 503可能包含高速 RAM存储器, 也可能还包括非不稳定的 存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。 发射端 506用 于发射经过加扰的待发射信息。 具体的, 存储器 503可以用于存储业务 ID信息和时隙号; 还可以用于 存储序列生成器产生的伪随机码序列,还可以存储待发射信息和经过加扰 的待发射信息。
进一步的, 存储器 503还可以用于存储预设的业务 ID信息集合、 基站 广播的业务 ID信息集合; 还可以用于存储第二初始值 cmit2
具体的, 处理器 501可以用于根据业务 ID信息和时隙号, 初始化序列 生成器; 以及, 用于根据所述序列生成器产生的伪随机码序列, 对待发射 信息加扰; 以及, 用于控制发射端 506发射经过加扰的所述待发射信息。
进一步的, D2D为广播模式, 所述业务 ID信息是从预设的业务 ID信息 集合中获取的; 或者, 所述业务 ID信息是从基站广播的业务 ID信息集合 中获取的。
进一步 的 , D2D为 广播模式 , 处理器 501可 以 用 于根据 cima =
Figure imgf000015_0001
+ ND2D , 得到第二初始值 cmit2 , 其中, 所述 ^为所述时隙号, 所述 ND2D为所述业务 ID信息, 所述 D为正整数; 以及, 用于利用所述第二 初始值 cmit2对所述序列生成器进行初始化。
本发明实施例还提供了一种发射机,发射机能够从预设的业务 ID信息 集合或基站广播的业务 ID信息集合中获取业务 ID信息, 并根据时隙号和 业务 ID信息, 利用 cmit2 = [n, 12」 .2° + N 初始化序列生成器, 根据序列生成 器产生的伪随机码序列,对待发射信息加扰,发射经过加扰的待发射信息。 与现有技术相比,本方案利用时隙号和业务 ID信息对序列生成器进行初始 化, 避免了使用发射机 ID混合其他一些信息对序列生成器进行初始化, 从 而省去了通知接收机, 使接收机得到发射机 ID的过程, 节省了在网络侧的 设备或发射机和接收机之间进行数据传输的时间,而且减少了占用的传输 资源。 本发明实施例提供了一种接收机 600 , 如图 8所示, 包括: 至少一个处 理器 601 , 例如 CPU, 至少一个通信总线 602 , 存储器 603 , 至少一个网络 接口 604或者用户接口 605 , 发射端 606。 通信总线 602用于实现这些组件之 间的连接通信。 可选的, 用户接口 605包括显示器、 键盘、 鼠标、 触摸屏 等设备。 存储器 603可能包含高速 RAM存储器, 也可能还包括非不稳定的 存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。 接收端 606用 于接收发射机发射的经过加扰的待发射信息。
具体的, 存储器 603可以用于存储接收机接收的发射机发射的经过加 扰的待发射信息, 还可以存储解扰后的信息。
具体的, 处理器 601可以用于接收发射机发射的经过加扰的待发射信 息,所述经过加扰的待发射信息是所述发射机根据序列生成器产生的伪随 机码序列加扰的待发射信息,所述伪随机码序列是由所述发射机根据同步 源 ID、 组 ID和时隙号初始化所述序列生成器产生的; 以及, 用于对所述 发射机发射的所述经过加扰的待发射信息进行解扰。
本发明实施例提供的一种接收机, 发射机能够根据同步源 ID、 组 ID 和时隙号, 初始化序列生成器, 根据序列生成器产生的伪随机码序列, 对 待发射信息加扰, 发射经过加扰的待发射信息, 接收机能够接收发射机发 射的经过加扰的待发射信息,对发射机发射的经过加扰的待发射信息进行 解扰。 与现有技术相比, 本方案利用同步源 ID、 组 ID和时隙号对序列生 成器进行初始化,避免了使用发射机 ID混合其他一些信息对序列生成器进 行初始化, 从而省去了增加通知接收机, 使接收机得到发射机 ID的过程, 节省了在发射机和接收机之间进行数据传输的时间,而且节省了占用的传 输资源。 本发明实施例提供了一种信息发射方法, 用于发射机, 如图 9所示, 包括:
701 , 居同步源 ID、 组 ID和时隙号, 初始化序列生成器。
其中, 同步源是发射机的同步参考源, 在网络覆盖的工作场景中, 一 般由基站作为同步源, 此时, 同步源 ID即小区 ID; 在无网络覆盖的工作 场景中, 终端设备可以作为同步源, 此时, 同步源 ID为 UE ID。 在部分网 络覆盖的工作场景中, 网络覆盖内的终端设备以基站为同步源, 而网络覆 盖外的终端设备参考网络覆盖内的终端设备的同步情况,可以釆用网络覆 盖内的终端设备的同步源 ID , 即与网络覆盖内的终端设备对应的小区 ID。 其中, 组 ID是参与 D2D通信的终端设备共享的一个标识号。 在网络覆 盖的工作场景中, 时隙号是指时间单元的序号, 取值可以从 0到 19共 20个 数值中选取。 在部分网络覆盖的工作场景中, 参与 D2D通信的一个组的终 端设备可以参考网络定时, 依然能够利用网络的时隙号; 在无网络覆盖的 工作场景中,可以使用与网络覆盖或与部分网络覆盖的工作场景中类似的 时间分割方法, 即利用网络的时隙号; 时间分割方法也可以釆用无时隙分 割, 即不利用网络的时隙号对序列生成器进行初始化。
702 , 根据所述序列生成器产生的伪随机码序列, 对待发射信息加扰。 其中, 将序列生成器产生的伪随机码序列与待发射信息相乘, 从而对 待发射信息进行加扰。
703 , 发射经过加扰的所述待发射信息。
本发明实施例提供的一种信息发射方法, 发射机能够根据同步源 ID、 组 ID和时隙号,初始化序列生成器,根据序列生成器产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发射信息。 与现有技术相比, 本方 案利用同步源 ID、 组 ID和时隙号对序列生成器进行初始化, 避免了使用 发射机 I D混合其他一些信息对序列生成器进行初始化,从而省去了通知接 收机, 使接收机得到发射机 ID的过程, 节省了在网络侧的设备或发射机和 接收机之间进行数据传输的时间, 而且减少了占用的传输资源。 进一步的, 在图 9所示的方案的基础上, 本发明实施例还提供了一种 信息发射方法的具体方案, 对图 9所示的 701的执行过程进行进一步细化, 701可以具体实现为 7011和 7012 , 如图 10所示, 包括:
7011 ,根据 cmitl = ng„2 + +L / 2」.2C + N ,得到第一初始值 ^。 其中, 上述计算是把组 ID、 码字的序号、 时隙号以及同步源 ID等信 息拼接为一个 Ν位的二进制数值串, 用来初始化序列生成器。 ngroupID为组 ID , q为码字的序号, ns为时隙号, NsID为同步源 ID。 一个终端设备一般接 收或者发送一个码字或两个码字, 码字的序号可取 0和 1两个值, 代表被加 扰的信息是第 0码字还是第 1码字。 这里的 A、 B、 C和 N可以根据实际情况 取不同的值, 具体 A、 B和 C的取值由组 ID、 码字的序号、 时隙号以及同步 源 ID等信息的位数决定, 比如: NsID是 9位, 则 C=9 ; 若 取值范围为 0- 19 , 且 1 8为整数, 12]是对 ns/2的数值进行向下取整的操作, 则 12]的值可 以用 4比特的二进制数表示, 则8= +4=9+4= 13 , 若 q取值为 0或 1 , 则 q的 取值可以用 1比特二进制数表示, 则入=8+ 1 =9+4+ 1 = 13+ 1 = 14。
可选的, 码字的比特位可以恒取值为 1 , 码字的比特位用于表示码字 的序号。 在传统的网络数据传输的场景下, 一个终端设备最多接收或者发 射两个码字, 也就是说, 终端设备接收或发射一个码字或者两个码字, 所 以终端设备必然会接收或发射序号为 0的码字。 码字的比特位恒取 1 , 表示 接收或发射序号为 1的码字, 从而尽量使 D2D通信中的序列生成器产生的 伪随机码序列的取值与网络数据通信中的伪随机码序列的取值有所区别。
7012 , 利用所述第一初始值 cmit l对所述序列生成器进行初始化。
其中, 将得到的第一初始值 cmit l输入序列生成器, 根据序列生成器中 的伪随机码序列的生成规则, 对序列生成器进行初始化。
本发明实施例提供的一种信息发射方法, 发射机能够根据同步源 ID、 组 ID、 时隙号和公式 cmitl = ngrouplD 2A + q.2B + [ns / 2] 2C + NSID , 利用初始值 cmit! 初始化序列生成器, 根据序列生成器产生的伪随机码序列, 对待发射信息 加扰, 发射经过加扰的待发射信息。 与现有技术相比, 本方案利用同步源 ID、 组 ID和时隙号, 将同步源 ID、 组 ID和时隙号等信息拼接为一个二进 制数值串, 并利用这一个二进制数值串对序列生成器进行初始化, 避免了 使用发射机 ID混合其他一些信息对序列生成器进行初始化,从而省去了通 知接收机,使接收机得到发射机 ID的过程, 节省了在网络侧的设备或发射 机和接收机之间进行数据传输的时间, 而且减少了占用的传输资源。 本发明实施例还提供了一种信息发射方法,用于发射机,如图 1 1所示, 包括:
801 , 根据业务 ID信息和时隙号, 初始化序列生成器。
其中, 业务 ID信息是 D2D通信的业务标识信息, 可以用于区分各种不 同的 D2D通信业务。 业务 ID信息可以从预设的业务 ID信息集合中获取, 也 可以从基站广播的业务 ID信息集合中获取。 具体的, 可以在终端设备出厂 时规定并设置好一个通用的 D2D通信的业务 ID信息集合,从这一个通用的 D2D通信的业务 ID信息集合中获取业务 ID信息,终端设备包括发射机和接 收机,发射机根据自身的业务在业务 ID信息集合中选择与发射机的业务对 应的业务 ID信息,而接收机接收时根据终端设备出厂规定并设置的固定的 业务 ID信息集合, 针对业务 ID信息集合中的每一个业务 ID信息, 逐一尝 试解扰; 也可以由基站广播终端设备的通用的 D2D通信的业务 ID信息集 合,从基站广播终端设备的通用的 D2D通信的业务 ID信息集合获取业务 ID 信息, 终端设备包括发射机和接收机, 发射机在基站广播的业务 ID信息集 合中选择与发射机的业务对应的业务 ID信息 ,而接收机接收发射机发射的 经过加扰的待发射信息时,根据基站广播的业务 ID信息集合,针对业务 ID 信息集合中的每一个业务 ID信息, 逐一尝试解扰。 可选的, 还可以由参与 D2D通信的终端设备在通信前预先约定业务 ID信息,在通信的过程中釆用 预先约定业务 ID信息。
其中, 在网络覆盖的工作场景中, 时隙号是指时间单元的序号, 取值 可以从 0到 19共 20个数值中选取。在部分网络覆盖的工作场景中,参与 D2D 通信的一个组的终端设备可以参考网络定时, 依然能够利用网络的时隙 号; 在无网络覆盖的工作场景中, 可以使用与网络覆盖或与部分网络覆盖 的工作场景中类似的时间分割方法, 即利用网络的时隙号; 时间分割方法 也可以釆用无时隙分割, 即不利用网络的时隙号对序列生成器进行初始 化。
802 , 根据所述序列生成器产生的伪随机码序列, 对待发射信息加扰。 其中, 将序列生成器产生的伪随机码序列与待发射信息相乘, 从而对 待发射信息进行加扰。
803 , 发射经过加扰的所述待发射信息。
本发明实施例还提供的一种信息发射方法, 发射机能够获取业务 ID 信息, 并根据时隙号和业务 ID信息, 初始化序列生成器, 根据序列生成器 产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发射信息。 与现有技术相比,本方案利用时隙号和业务 ID信息对序列生成器进行初始 化, 避免了使用发射机 ID混合其他一些信息对序列生成器进行初始化, 从 而省去了通知接收机, 使接收机得到发射机 ID的过程, 节省了在网络侧的 设备或发射机和接收机之间进行数据传输的时间,而且减少了占用的传输 资源。 进一步的, 在图 11所示的方案的基础上, 本发明实施例还提供了一种 信息发射方法的具体方案,对图 11所示的 801的执行过程进行进一步细化 , 801可以具体实现为 8011和 8012, 如图 12所示, 包括:
8011 , 根据^ ^!^ 」^1^ , 得到第二初始值0111112
其中, ns为时隙号, ND2D为业务 ID信息, D为正整数。 D是业务 ID信 息的比特数, 例如: 业务 ID信息占用 9位比特位, 则 D=9。
8012, 利用所述第二初始值 cmit2对所述序列生成器进行初始化。
其中, 将得到的第二初始值 cmit2输入序列生成器, 根据序列生成器中 的伪随机码序列的生成规则, 对序列生成器进行初始化。
本发明实施例还提供了一种信息发射方法,发射机能够从预设的业务 ID信息集合或基站广播的业务 ID信息集合中获取业务 ID信息, 并根据时 隙号和业务 ID信息, 利用 ϋ1ιώ2 = / 2」.2ΰ + ^初始化序列生成器, 根据序 列生成器产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发 射信息。 与现有技术相比, 本方案利用时隙号和业务 ID信息对序列生成器 进行初始化,避免了使用发射机 ID混合其他一些信息对序列生成器进行初 始化, 从而省去了通知接收机, 使接收机得到发射机 ID的过程, 节省了在 网络侧的设备或发射机和接收机之间进行数据传输的时间,而且减少了占 用的传输资源。 本发明实施例提供了一种信息发射方法, 用于接收机, 如图 13所示, 包括:
601 , 接收发射机发射的经过加扰的待发射信息。
其中,经过加扰的待发射信息是发射机根据序列生成器产生的伪随机 码序列加扰的待发射信息, 所述伪随机码序列是由发射机根据同步源 ID、 组 ID和时隙号初始化序列生成器产生的。 602 , 对所述发射机发射的所述经过加扰的待发射信息进行解扰。 其中,接收机根据发射机初始化的序列生成器产生的伪随机序列进行 解扰。
本发明实施例提供的一种信息发射方法, 发射机能够根据同步源 ID、 组 ID和时隙号,初始化序列生成器,根据序列生成器产生的伪随机码序列, 对待发射信息加扰, 发射经过加扰的待发射信息, 接收机能够接收发射机 发射的经过加扰的待发射信息,对发射机发射的经过加扰的待发射信息进 行解扰。 与现有技术相比, 本方案利用同步源 ID、 组 ID和时隙号对序列 生成器进行初始化,避免了使用发射机 ID混合其他一些信息对序列生成器 进行初始化, 从而省去了通知接收机, 使接收机得到发射机 ID的过程, 节 省了在发射机和接收机之间进行数据传输的时间,而且节省了占用的传输 资源。 本说明书中的各个实施例均釆用递进的方式描述,各个实施例之间相 同相似的部分互相参见即可,每个实施例重点说明的都是与其他实施例的 不同之处。 尤其, 对于设备实施例而言, 由于其基本相似于方法实施例, 所以描述得比较简单, 相关之处参见方法实施例的部分说明即可。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分 流程, 是可以通过计算机程序来指令相关的硬件来完成, 所述的程序可存 储于一计算机可读取存储介质中, 该程序在执行时, 可包括如上述各方法 的实施例的流程。 其中, 所述的存储介质可为磁碟、 光盘、 只读存储记忆 体 ( Read-Only Memory , ROM ) 或随机存^ I i己忆体 ( Random Access Memory, RAM ) 等。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发 明的保护范围应该以权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种信息发射装置, 其特征在于, 用于发射机, 所述装置支持用户 直接通信 D2D, 所述装置包括:
第一初始化模块, 用于根据同步源 ID、 组 ID和时隙号, 初始化序列生 成器;
第一加扰模块, 用于根据所述序列生成器产生的伪随机码序列, 对待 发射信息加扰;
第一发射模块, 用于发射经过加扰的所述待发射信息。
2、 根据权利要求 1所述的装置, 其特征在于, 所述第一初始化模块, 包括:
第一获取单元, 用于根据^^!^^^ + ^^ + ^ ^ ^ ^ 得到第 一初始值 cmitl , 其中, 所述!!^^!^为所述组 ID, 所述 q为码字的序号, 所述 1^为所述时隙号, 所述 NsID为所述同步源 ID, 所述 A、 所述 B和所述 C均为正 整数;
第一初始化单元, 用于利用所述第一初始值 cmit对所述序列生成器进行 初始化。
3、 根据权利要求 2所述的装置, 其特征在于, 所述码字的比特位恒取 值为 1。
4、 一种信息发射装置, 其特征在于, 用于发射机, 所述发射机支持用 户直接通信 D2D, 所述装置包括:
第二初始化模块, 用于根据业务 ID信息和时隙号, 初始化序列生成器; 第二加扰模块, 用于根据所述序列生成器产生的伪随机码序列, 对待 发射信息加扰;
第二发射模块, 用于发射经过加扰的所述待发射信息。
5、 根据权利要求 4所述的方法, 其特征在于, 所述 D2D为广播模式; 所述业务 ID信息是从预设的业务 ID信息集合中获取的; 或者, 所述业务 ID 信息是从基站广播的业务 ID信息集合中获取的。
6、 根据权利要求 4或 5所述的方法, 其特征在于, 所述 D2D为所述广播 模式; 所述第二初始化模块, 包括: 第二获取单元, 用于根据^^ : ^^?丄?^ + ^^ , 得到第二初始值 Cmlt2 , 其中,所述 1 8为所述时隙号,所述 ND2D为所述业务 ID信息, 所述 D为正整数; 第二初始化单元,用于利用所述第二初始值 cmit2对所述序列生成器进行 初始化。
7、 一种信息发射装置, 其特征在于, 用于接收机, 所述装置支持用户 直接通信 D2D, 所述装置包括:
接收模块, 用于接收发射机发射的经过加扰的待发射信息, 所述经过 加扰的待发射信息是所述发射机根据序列生成器产生的伪随机码序列加扰 的待发射信息, 所述伪随机码序列是由所述发射机根据同步源 ID、 组 ID 和时隙号初始化所述序列生成器产生的;
解扰模块, 用于对所述发射机发射的所述经过加扰的待发射信息进行 解扰。
8、 一种信息发射方法, 其特征在于, 用于发射机, 所述发射机支持用 户直接通信 D2D, 所述方法包括:
根据同步源 ID、 组 ID和时隙号, 初始化序列生成器;
根据所述序列生成器产生的伪随机码序列, 对待发射信息加扰; 发射经过加扰的所述待发射信息。
9、 根据权利要求 8所述的方法, 其特征在于, 所述根据同步源 ID、 组 ID和时隙号, 初始化序列生成器, 包括:
根据^ !^^^ + ^ ^ 」^^ ^^ 得到第一初始值 cmitl , 其中, 所述!!^ !^为所述组 ID, 所述 q为码字的序号, 所述 ^为所述时隙号, 所述 NsID为所述同步源 ID, 所述 A、 所述 B和所述 C均为正整数;
利用所述第一初始值 c ini t对所述序列生成器进行初始化。
10、 根据权利要求 9所述的方法, 其特征在于, 所述码字的比特位恒取 值为 1。
11、 一种信息发射方法, 其特征在于, 用于发射机, 所述发射机支持 用户直接通信 D2D, 所述方法包括:
根据业务 ID信息和时隙号, 初始化序列生成器; 根据所述序列生成器产生的伪随机码序列, 对待发射信息加扰; 发射经过加扰的所述待发射信息。
12、 根据权利要求 11所述的方法, 其特征在于, 所述 D2D为广播模式; 所述业务 ID信息是从预设的业务 ID信息集合中获取的; 或者, 所述业务 ID 信息是从基站广播的业务 ID信息集合中获取的。
13、 根据权利要求 11或 12所述的方法, 其特征在于, 所述 D2D为所述 广播模式; 所述根据业务 ID信息和时隙号, 初始化序列生成器, 包括: 根据^^ ^ ^^^ + , 得到第二初始值 112 , 其中, 所述 ns为所 述时隙号, 所述 ND2D为所述业务 ID信息, 所述 D为正整数;
利用所述第二初始值 cmit2对所述序列生成器进行初始化。
14、 一种信息发射方法, 其特征在于, 用于接收机, 所述接收机支持 用户直接通信 D2D, 所述方法包括:
接收发射机发射的经过加扰的待发射信息, 所述经过加扰的待发射信 息是所述发射机根据序列生成器产生的伪随机码序列加扰的待发射信息, 所述伪随机码序列是由所述发射机根据同步源 ID、 组 ID和时隙号初始化所 述序列生成器产生的;
对所述发射机发射的所述经过加扰的待发射信息进行解扰。
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