WO2020134909A1 - 一种被用于无线通信的节点中的方法和装置 - Google Patents

一种被用于无线通信的节点中的方法和装置 Download PDF

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Publication number
WO2020134909A1
WO2020134909A1 PCT/CN2019/122713 CN2019122713W WO2020134909A1 WO 2020134909 A1 WO2020134909 A1 WO 2020134909A1 CN 2019122713 W CN2019122713 W CN 2019122713W WO 2020134909 A1 WO2020134909 A1 WO 2020134909A1
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Prior art keywords
wireless signal
sequence
information
node
bit block
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Ceased
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PCT/CN2019/122713
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English (en)
French (fr)
Inventor
蒋琦
张晓博
杨林
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Publication of WO2020134909A1 publication Critical patent/WO2020134909A1/zh
Priority to US17/220,941 priority Critical patent/US11950289B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0836—Random access procedures, e.g. with 4-step access with 2-step access

Definitions

  • This application relates to a transmission method and device in a wireless communication system, and in particular to a communication method and device for random access in wireless communication.
  • the application scenarios of wireless communication systems will become more and more diversified in the future, and different application scenarios impose different performance requirements on the system.
  • the 3GPP (3rd Generation Partnership Project) RAN (Radio Access Network) #82 plenary meeting decided to NR (New Radio, New Wireless) 2-step (two-step) RACH (Random Access Channel, random access channel) for WI (Work Item, work item) stage standardization work.
  • 2-step RACH will achieve faster access to user equipment and facilitate the transmission of small data packets.
  • MsgA messages A
  • Pramble preamble
  • the user equipment transmits only the preamble sequence in Msg1 (Message 1), and waits for the feedback sent by the base station for Msg1 in the RAR (Random Access Response) time window corresponding to the preamble sequence Msg2 (message 2); the user equipment then sends Msg3 according to Msg2 to determine the unique identifier of the user equipment from the base station for conflict resolution.
  • MsgA will partially carry some functions of Msg1 and Msg3 in 4-step RACH.
  • 4-step RACH there is no HARQ in Msg1, and HARQ (Hybrid Automatic Repeat request) exists in Msg3 to support retransmission.
  • 2-step RACH when MsgA carries the functions of Msg1 and Msg3 (message 3) in the traditional system at the same time, how to retransmit MsgA needs to be reconsidered.
  • each transmission of MsgA is considered to be the initial transmission, that is, the base station will not combine multiple MsgAs to obtain the combining gain, but this method obviously reduces the performance of the data portion of MsgA.
  • this application discloses a solution to support unicast and multicast transmission. It should be noted that the embodiments in the first node of the present application and the features in the embodiments can be applied to the base station without conflict, and at the same time, the embodiments and implementation in the second node of the present application The features in the example can be applied to terminal devices. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.
  • This application discloses a method used in a first node of wireless communication, which is characterized by including:
  • the first type of information is not detected in the first time window, and a second sequence and a second wireless signal are sent;
  • a first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the first Two wireless signals carry second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, so
  • the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • This application discloses a method used in a first node of wireless communication, which is characterized by including:
  • a first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the first Two wireless signals carry second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, so
  • the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • the benefit of the above method is that: the first sequence and the first wireless signal constitute MsgA, and the second sequence and the second wireless signal are for MsgA retransmission; Information, the first node can instruct the second node in this application to combine the first wireless signal and the second wireless signal to obtain a combining gain to improve the receiving performance of the data portion in MsgA.
  • the above method is characterized by comprising:
  • the first signaling is used to determine K1 candidate sequences, the K1 is a positive integer; the first sequence is one of the K1 candidate sequences, and the second sequence Is a candidate sequence among the K1 candidate sequences; the first node selects the first sequence among the K1 candidate sequences, and the first node selects the K1 candidate sequence Choose the second sequence by yourself.
  • the above method has the advantage that the second node in this application is pre-configured with K1 candidate sequences to reduce the second node’s detection of the first sequence and the second sequence the complexity.
  • the above method is characterized in that the first sequence is transmitted using a first power value, the second sequence is transmitted using a second power value, and the second power value is greater than the first power value ;
  • the difference between the second power value and the first power value is fixed, or the difference between the second power value and the first power value is configured by higher layer signaling.
  • the advantage of the above method is that the preamble sequence is transmitted by power ramping, thereby ensuring the orthogonality of the preamble sequence and improving the transmission performance.
  • the above method is characterized in that the first wireless signal and the second wireless signal use the same transmission power.
  • the above method has the advantage of improving the transmission performance of the data part in MsgA by combining gains, and avoiding interference to other users caused by unnecessary power increase.
  • the above method is characterized in that the first wireless signal and the second wireless signal occupy the same number of REs (Resource Elements).
  • the advantage of the above method is that the introduction of the second information does not increase the occupation of additional time-frequency resources and improves spectrum efficiency.
  • the above method is characterized in that the second sequence is used to determine that the second wireless signal is for the second transmission of the first wireless signal; or the second wireless signal includes A target reference signal, which is used to determine that the second wireless signal is for the second transmission of the first wireless signal.
  • the above method has the advantage that when the transmission of the second wireless signal and the first wireless signal conforms to a certain rule, and the certain rule does not require explicit signaling instructions; for example, the second When the wireless signal includes only some bits in the first bit block, and there is also a third wireless signal for the third retransmission of the first wireless signal; the above method can enable the second node to adopt the correct The combination mode and decoding mode receive multiple retransmissions for one MsgA.
  • This application discloses a method used in a second node of wireless communication, which is characterized by including:
  • the first type of information includes only identifiers other than the target identifier
  • the first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the first Two wireless signals carry second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, so
  • the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • This application discloses a method used in a second node of wireless communication, which is characterized by including:
  • a first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the first Two wireless signals carry second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, so
  • the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • the above method is characterized by comprising:
  • the first signaling is used to determine K1 candidate sequences, the K1 is a positive integer; the first sequence is one of the K1 candidate sequences, and the second sequence Is one of the K1 candidate sequences; the sender of the first sequence selects the first sequence among the K1 candidate sequences, and the sender of the first sequence is The second sequence is selected by itself among the K1 candidate sequences.
  • the above method is characterized in that the first sequence is transmitted using a first power value, the second sequence is transmitted using a second power value, and the second power value is greater than the first power value ;
  • the difference between the second power value and the first power value is fixed, or the difference between the second power value and the first power value is configured by higher layer signaling.
  • the above method is characterized in that the first wireless signal and the second wireless signal use the same transmission power.
  • the above method is characterized in that the first wireless signal and the second wireless signal occupy the same number of REs.
  • the above method is characterized in that the second sequence is used to determine that the second wireless signal is for the second transmission of the first wireless signal; or the second wireless signal includes A target reference signal, which is used to determine that the second wireless signal is for the second transmission of the first wireless signal.
  • This application discloses a first node used for wireless communication, which is characterized by including:
  • the first transceiver sends a first sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carries a target identifier;
  • the first receiver monitors the first type of information in the first time window
  • the first transmitter in the first time window, the first type of information is not detected, and sends a second sequence and a second wireless signal;
  • a first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the first Two wireless signals carry second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, so
  • the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • This application discloses a first node used for wireless communication, which is characterized by including:
  • the first transceiver sends a first sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carries a target identifier;
  • the first receiver monitors the first type of information in the first time window
  • the first transmitter which includes only an identifier other than the target identifier in the first type of information detected in the first time window, sends a second sequence and a second wireless signal;
  • a first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the first Two wireless signals carry second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, so
  • the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • This application discloses a second node used for wireless communication, which is characterized by comprising:
  • the second transceiver monitors the first sequence and the first wireless signal, at least one of the first sequence and the first wireless signal carries a target identifier
  • the second transmitter sends the first type of information in the first time window, and the first type of information includes only identifiers other than the target identifier;
  • the second receiver monitors the second sequence and the second wireless signal
  • a first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the first Two wireless signals carry second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, so
  • the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • This application discloses a second node used for wireless communication, which is characterized by comprising:
  • the second transceiver monitors the first sequence and the first wireless signal, at least one of the first sequence and the first wireless signal carries a target identifier
  • the second transmitter gives up sending the first type of information in the first time window
  • the second receiver monitors the second sequence and the second wireless signal
  • a first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the first Two wireless signals carry second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, so
  • the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • this application has the following advantages:
  • the first sequence and the first wireless signal constitute MsgA
  • the second sequence and the second wireless signal are retransmissions for MsgA
  • the first node can indicate The second node in this application combines the first wireless signal and the second wireless signal to obtain a combining gain to improve the receiving performance of the data part in MsgA.
  • the power of the preamble sequence is increased to ensure the orthogonality of the preamble sequence and improve the transmission performance; at the same time, the first wireless signal and the second wireless signal use the same power, and the receiver increases MsgA by combining gains
  • the transmission performance of the data part in the middle avoids the interference to other users caused by unnecessary increase of power.
  • the second wireless signal includes only the first bit block Part of the bits, and there is also a third wireless signal for the third retransmission of the first wireless signal; the above method enables the second node to use the correct combination and decoding methods to receive an MsgA Multiple retransmissions.
  • FIG. 1 shows a flowchart of a first sequence and a first wireless signal according to an embodiment of the present application
  • FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application
  • FIG. 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application
  • FIG. 4 shows a schematic diagram of a first node and a second node according to an embodiment of the present application
  • FIG. 5 shows a flowchart of a second sequence and a second wireless signal according to an embodiment of the present application
  • FIG. 6 shows a flowchart of a second sequence and a second wireless signal according to an embodiment of the present application
  • FIG. 7 shows a schematic diagram of a first time window according to an embodiment of the present application.
  • FIG. 8 shows a schematic diagram of a first sequence, a first wireless signal, a second sequence, and a second wireless signal according to the present application
  • FIG. 9 shows a schematic diagram of a first wireless signal and a second wireless signal according to the present application.
  • FIG. 11 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application
  • FIG. 12 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application
  • Embodiment 1 exemplifies the execution of the flowchart for the first sequence and the first wireless signal, as shown in FIG. 1.
  • the first node in this application first sends a first sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carries a target identifier; Monitoring the first type of information in a time window; if the first type of information is not detected in the first time window, or if the first type of information is detected in the first time window Only the identification other than the target identification is included, and the second sequence and the second wireless signal are transmitted; the first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; The first bit block is also used to generate the second wireless signal, the second wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification; The second information is used to determine configuration information of the first wireless signal, and the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • the target identification is used to identify the first node.
  • the target identification is related to the S-TMSI (SAE Temporary Mobile Subscriber Identity, SAE Temporary Mobile Subscriber Identity) of the first node, where SAE (System Architecture Evolution) is a system architecture evolution.
  • SAE System Architecture Evolution
  • the target identification is related to the IMSI (International Mobile Subscriber Identification Number, International Mobile Subscriber Identification Number) of the first node.
  • IMSI International Mobile Subscriber Identification Number, International Mobile Subscriber Identification Number
  • the target identifier is a random number generated by the first node.
  • the first sequence carries the target identifier.
  • the meaning that the phrase “the first sequence carries the target identifier” includes: the target identifier is used to generate the first sequence.
  • the first wireless signal carries the target identification.
  • the phrase that the first wireless signal carries the target identification means that the first wireless signal includes the target identification.
  • the phrase that the first wireless signal carries the target identifier means that the first wireless signal is scrambling (scrambling) by the target identifier.
  • the first sequence and the second sequence are the same characteristic sequence.
  • the target identification is used to generate the same feature sequence.
  • the first sequence and the second sequence are respectively different characteristic sequences.
  • the target identification is used to generate the first sequence
  • the second identification is used to generate the second sequence
  • the target identification and the second identification are different .
  • the target identifier and the second identifier are two different random numbers generated by the first node.
  • the target identifier and the second identifier are both related to the S-TMSI of the first node, or the target identifier and the second identifier are both related to the first The IMSI of a node is related.
  • the first sequence and the first wireless signal are used to transmit Msg-A.
  • the second sequence and the second wireless signal are used to transmit Msg-A.
  • all the bits in the first bit block are used to generate the first wireless signal, and some bits in the first bit block are used to generate the second wireless signal.
  • the second sequence carries the target identifier.
  • the meaning that the phrase “the second sequence carries the target identifier” includes: the target identifier is used to generate the second sequence.
  • the second wireless signal carries the target identification.
  • the phrase that the second wireless signal carries the target identification means that the second wireless signal includes the target identification.
  • the physical layer channel occupied by the first sequence includes PRACH (Physical Random Access Channel, physical random access channel).
  • PRACH Physical Random Access Channel, physical random access channel
  • the physical layer channel occupied by the second sequence includes PRACH.
  • the first sequence occupies a first time-frequency resource set
  • the first wireless signal occupies a second time-frequency resource set
  • the time-frequency position of the first time-frequency resource set and the second time The time-frequency position of the frequency resource set is related.
  • the first sequence occupies a first set of time-frequency resources
  • the first wireless signal occupies a second set of time-frequency resources
  • the time-frequency position of the first set of time-frequency resources is used to determine the The time-frequency position of the second set of time-frequency resources.
  • the first sequence occupies a first time-frequency resource set
  • the first wireless signal occupies a second time-frequency resource set
  • the first sequence is used to determine the second time-frequency resource set Time-frequency location.
  • the time-frequency position of the first time-frequency resource set is configured by high-layer signaling.
  • the time-frequency position of the first time-frequency resource set is predefined.
  • the second sequence occupies a third time-frequency resource set
  • the second wireless signal occupies a fourth time-frequency resource set
  • the time-frequency position of the third time-frequency resource set is different from the fourth time
  • the time-frequency position of the frequency resource set is related.
  • the second sequence occupies a third time-frequency resource set
  • the second wireless signal occupies a fourth time-frequency resource set
  • the time-frequency position of the third time-frequency resource set is used to determine the The time-frequency position of the fourth time-frequency resource set.
  • the second sequence occupies a third time-frequency resource set
  • the second wireless signal occupies a fourth time-frequency resource set
  • the second sequence is used to determine the fourth time-frequency resource set Time-frequency location.
  • the time-frequency position of the third time-frequency resource set is configured by high-layer signaling.
  • the time-frequency position of the third time-frequency resource set is predefined.
  • the physical layer channel occupied by the first wireless signal includes PUSCH (Physical Physical Uplink Shared Channel).
  • PUSCH Physical Physical Uplink Shared Channel
  • the physical layer channel occupied by the second wireless signal includes PUSCH.
  • the first wireless signal includes a DMRS (Demodulation Reference Signal, demodulation reference signal).
  • DMRS Demodulation Reference Signal, demodulation reference signal
  • the second wireless signal includes DMRS.
  • the second wireless signal is a retransmission of the first wireless signal.
  • both the first sequence and the second sequence carry the target identifier, and the second sequence is a retransmission of the first sequence.
  • the second wireless signal includes UCI (Uplink Control Information), and the UCI includes configuration information of the first wireless signal.
  • UCI Uplink Control Information
  • the first bit block carries the second information.
  • the second wireless signal includes UCI, and the UCI is used to carry the second information.
  • the second wireless signal includes a PUSCH and a reference signal, and the reference signal is used to carry the second information.
  • the second wireless signal includes PUSCH, reference signal, and UCI, and the UCI is used to carry the second information.
  • the first type of information is feedback for the first sequence and the first wireless signal.
  • the first type of information is Msg-B (message B).
  • the physical layer channel occupied by the first type of information includes PDSCH (Physical Downlink Shared Channel, physical downlink shared channel).
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel.
  • the first type of information includes the first type of physical layer information and the first type of high layer information
  • the physical layer channel occupied by the first type of physical layer information is the first PDCCH
  • the first The physical layer channel occupied by the high-level information is the first PDSCH.
  • the phrase that the first type of information is not detected in the first time window means that the first PDCCH is not detected by the first node.
  • the phrase that the first PDCCH is not detected means that the first PDCCH includes the scrambled by a given RNTI (Radio Network Temporary Identifier).
  • RNTI Radio Network Temporary Identifier
  • CRC Cyclic Redundancy Check
  • the phrase that the first PDCCH is not detected means that the first PDCCH includes a CRC sequence, and the first node uses the PDCCH after receiving the first PDCCH.
  • the received CRC sequence part of the first PDCCH divides the cyclic generator polynomial of the CRC sequence by modulo 2 and the remainder is not 0.
  • the phrase “the first type of information is not detected in the first time window” means that the first PDSCH has not been correctly decoded by the first node.
  • the phrase that the first PDSCH is not detected means that the first PDSCH is not correctly decoded by the first node.
  • the phrase that the first PDSCH is not detected means that the first PDSCH includes a CRC sequence, and the first node uses the first PDSCH after receiving it.
  • the received CRC sequence part of the first PDSCH fails to perform CRC sequence verification.
  • the meaning that the above phrase includes only identifiers other than the target identifier in the first category of information detected in the first time window includes: the first category of information includes the first category of high-level Information, the first-level high-level information includes K1 first-type identifiers, the K1 is a positive integer, and any one of the K1 first-type identifiers is not equal to the target identifier.
  • the second node determines whether the second node correctly detects the first sequence from the first node through the first type of information, and correctly decodes the first wireless signal.
  • the second node determines whether the second node responds to the random access request initiated by the first node from the first node through the first type of information.
  • the first type of information includes the first type of physical layer information and the first type of high layer information, and at least one of the first type of physical layer information and the first type of high layer information is used to determine K1 first-type identifiers, the target identifier is one of the K1 first-type identifiers, and the first node considers that the second node correctly detected the first sequence and correctly translated Code the first wireless signal.
  • the duration of the first time window in the time domain is fixed, or the duration of the first time window in the time domain is configured by higher layer signaling.
  • the first time window occupies a positive integer number of consecutive time slots.
  • the first time window occupies a positive integer number of consecutive subframes.
  • the start time of the first time window is the cut-off time of sending the first wireless signal
  • the cut-off time of the first time window is the start of sending the second sequence
  • the start time of the first time window is the sum of the cut-off time for sending the first wireless signal and the first time offset, and the cut-off time of the first time window is to send the The starting moment of the second sequence;
  • the first time offset is equal to T time slots, the T is a positive integer and the T is fixed.
  • the monitoring in this application includes blind detection.
  • the monitoring in this application includes receiving and demodulating.
  • the monitoring in this application includes receiving and decoding.
  • the first sequence and the first wireless signal are sent in a first time unit
  • the second sequence and the second wireless signal are sent in a second time unit
  • the first A time unit is earlier than the second time unit in the time domain.
  • Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in FIG. 2.
  • FIG. 2 illustrates a network architecture 200 of 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution) systems.
  • the 5G NR or LTE network architecture 200 may be called EPS (Evolved Packet System) 200 or some other suitable term.
  • the EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core, Evolved Packet Core)/5G-CN (5G-Core Network 5G core network) 210, HSS (Home Subscriber Server, home subscriber server) 220 and Internet service 230.
  • EPS can be interconnected with other access networks, but these entities/interfaces are not shown for simplicity.
  • NG-RAN includes NR Node B (gNB) 203 and other gNB 204.
  • gNB203 provides user and control plane protocol termination towards UE201.
  • the gNB203 can be connected to other gNB204 via an Xn interface (eg, backhaul).
  • gNB203 may also be called a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmit and receive node), or some other suitable term.
  • gNB203 provides UE201 with an access point to EPC/5G-CN 210.
  • Examples of UE201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices , Video devices, digital audio players (for example, MP3 players), cameras, game consoles, drones, aircraft, narrow-band IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any Other similar functional devices.
  • SIP session initiation protocol
  • PDAs personal digital assistants
  • satellite radios non-terrestrial base station communications
  • satellite mobile communications global positioning systems
  • multimedia devices Video devices
  • digital audio players for example, MP3 players
  • cameras game consoles
  • drones aircraft
  • narrow-band IoT devices machine-type communication devices
  • machine-type communication devices land vehicles, automobiles, wearable devices, or any Other similar functional devices.
  • UE201 may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term.
  • gNB203 is connected to EPC/5G-CN 210 through the S1/NG interface.
  • EPC/5G-CN 210 includes MME (Mobility Management Entity, Mobility Management Entity)/AMF (Authentication Management Field, Authentication Management Domain)/UPF (User Plane Function, User Plane Function) 211, other MME/AMF/UPF214, S-GW (Service Gateway) 212 and P-GW (Packet Date Network Gateway, packet data network gateway) 213.
  • MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210.
  • MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted via S-GW212, which is itself connected to P-GW213.
  • P-GW213 provides UE IP address allocation and other functions.
  • the P-GW213 is connected to the Internet service 230.
  • the Internet service 230 includes an operator's corresponding Internet protocol service, which may specifically include the Internet, Intranet, IMS (IP Multimedia Subsystem) and packet switching streaming
  • the UE 201 corresponds to the first node in this application.
  • the gNB203 corresponds to the second node in this application.
  • the air interface between the UE 201 and the gNB 203 is a Uu interface.
  • the wireless link between the UE 201 and the gNB 203 is a cellular network link.
  • the first node in the present application is the UE 201
  • the second node in the present application is the gNB203.
  • the first node in this application is the UE201
  • the second node in this application is a terminal device other than the UE201.
  • the first node in the present application is the UE 201
  • the second node in the present application is a terminal device other than the UE 201
  • the air interface is the PC-5 interface.
  • Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 3.
  • FIG. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane.
  • FIG. 3 shows the radio protocol architecture for the first node and the second node in three layers: layer 1, layer 2, and layer. 3.
  • Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301.
  • Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the first node and the second node through PHY 301.
  • L2 layer 305 includes MAC (Medium Access Control) sub-layer 302, RLC (Radio Link Control, radio link layer control protocol) sub-layer 303, and PDCP (Packet Data Convergence Protocol), packet data Convergence protocol) sublayers 304, which terminate at the second node on the network side.
  • the first node may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and another end that terminates at the connection ( For example, the application layer at the remote UE, server, etc.).
  • the PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels.
  • the PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, provide security by encrypting data packets, and provide handover support for UEs between second nodes.
  • the RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest).
  • HARQ Hybrid Automatic Repeat reQuest.
  • the MAC sublayer 302 provides multiplexing between logic and transport channels.
  • the MAC sublayer 302 is also responsible for allocating various radio resources (eg, resource blocks) in one cell between the first nodes.
  • the MAC sublayer 302 is also responsible for HARQ operations.
  • the radio protocol architecture for the first node and the second node is substantially the same for the physical layer 301 and the L2 layer 305, but there is no header compression function for the control plane.
  • the control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer).
  • the RRC sublayer 306 is responsible for obtaining radio resources (ie, radio bearers) and using RRC signaling between the second node and the first node to configure the lower layer.
  • the wireless protocol architecture in FIG. 3 is applicable to the first node in this application.
  • the wireless protocol architecture in FIG. 3 is applicable to the second node in this application.
  • the first sequence in this application is generated in the PHY301.
  • the first wireless signal in this application is generated in the PHY 301.
  • the first wireless signal in this application is generated at the MAC sublayer 302.
  • the second sequence in this application is generated in the PHY301.
  • the second wireless signal in this application is generated in the PHY 301.
  • the second wireless signal in this application is generated at the MAC sublayer 302.
  • the first type of information in this application is generated in the PHY301.
  • the first type of information in this application is generated in the MAC sublayer 302.
  • the first signaling in this application is generated at the RRC sublayer 306.
  • Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in FIG. 4.
  • 4 is a block diagram of a first communication device 450 and a second communication device 410 that communicate with each other in an access network.
  • the first communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmission processor 468, a reception processor 456, a multi-antenna transmission processor 457, a multi-antenna reception processor 458, and a transmitter/receiver 454 ⁇ Antenna 452.
  • the second communication device 410 includes a controller/processor 475, a memory 476, a reception processor 470, a transmission processor 416, a multi-antenna reception processor 472, a multi-antenna transmission processor 471, a transmitter/receiver 418, and an antenna 420.
  • the controller/processor 475 implements the functionality of the L2 layer.
  • the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels Multiplexing and radio resource allocation to the first communication device 450 based on various priority metrics.
  • the controller/processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450.
  • the transmission processor 416 and the multi-antenna transmission processor 471 implement various signal processing functions for the L1 layer (ie, physical layer).
  • the transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift Mapping of signal clusters for keying (QPSK), M phase shift keying (M-PSK), M quadrature amplitude modulation (M-QAM).
  • BPSK binary phase shift keying
  • QPSK quadrature phase shift Mapping of signal clusters for keying
  • M-PSK M phase shift keying
  • M-QAM M quadrature amplitude modulation
  • the multi-antenna transmission processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more spatial streams.
  • Transmit processor 416 maps each spatial stream to subcarriers, multiplexes with reference signals (eg, pilots) in the time and/or frequency domain, and then uses inverse fast Fourier transform (IFFT) to produce The physical channel that carries the multi-carrier symbol stream in the time domain. Then, the multi-antenna transmission processor 471 performs the transmission analog precoding/beamforming operation on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmission processor 471 into a radio frequency stream, and then provides it to a different antenna 420.
  • IFFT inverse fast Fourier transform
  • each receiver 454 receives a signal through its corresponding antenna 452.
  • Each receiver 454 recovers the information modulated onto the radio frequency carrier, and converts the radio frequency stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456.
  • the receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer.
  • the multi-antenna reception processor 458 performs a reception analog precoding/beamforming operation on the baseband multi-carrier symbol stream from the receiver 454.
  • the receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain.
  • FFT fast Fourier transform
  • the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, where the reference signal is used for channel estimation.
  • the data signal is recovered by the multi-antenna detection processor 458 after multiple antenna detection.
  • the first communication device 450 is any spatial stream of the destination. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated.
  • the receiving processor 456 then decodes and deinterleaves the soft decision to recover upper layer data and control signals transmitted by the second communication device 410 on the physical channel.
  • the upper layer data and control signals are then provided to the controller/processor 459.
  • the controller/processor 459 implements the functions of the L2 layer.
  • the controller/processor 459 may be associated with a memory 460 that stores program codes and data.
  • the memory 460 may be referred to as a computer-readable medium.
  • the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression 3. Control signal processing to recover upper layer data packets from the core network.
  • the upper layer data packets are then provided to all protocol layers above the L2 layer.
  • Various control signals can also be provided to L3 for L3 processing.
  • a data source 467 is used to provide upper layer data packets to the controller/processor 459.
  • the data source 467 represents all protocol layers above the L2 layer.
  • the controller/processor 459 implements the header based on the wireless resource allocation Compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels implement L2 layer functions for the user and control planes.
  • the controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410.
  • the transmission processor 468 performs modulation mapping, channel coding processing, and the multi-antenna transmission processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, followed by transmission
  • the processor 468 modulates the generated spatial stream into a multi-carrier/single-carrier symbol stream, which is provided to different antennas 452 via the transmitter 454 after analog precoding/beamforming operation in the multi-antenna transmission processor 457.
  • Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmission processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.
  • the function at the second communication device 410 is similar to that from the second communication device 410 to the first communication device 450
  • Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna reception processor 472 and a reception processor 470.
  • the reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer.
  • the controller/processor 475 implements L2 layer functions.
  • the controller/processor 475 may be associated with a memory 476 that stores program codes and data.
  • the memory 476 may be referred to as a computer-readable medium.
  • the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression 3. Control signal processing to recover upper layer data packets from UE450.
  • the upper layer data packets from the controller/processor 475 may be provided to the core network.
  • the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to When the at least one processor is used together, the first communication device 450 apparatus at least: sends a first sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carries a target identification; and Monitor the first type of information in the first time window; the first type of information is not detected in the first time window, send the second sequence and the second wireless signal; the first bit block is used to generate The first wireless signal, the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the second wireless signal carries second information; the first At least one of the second sequence and the second wireless signal carries the target identifier; the second information is used to determine configuration information of the first wireless signal, the configuration information includes occupied time-frequency resources, At least one of the modulation and coding method used and the redundancy version used.
  • the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to When the at least one processor is used together, the first communication device 450 apparatus at least: sends a first sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carries a target identification; and Monitor the first type of information in the first time window; the first type of information detected in the first time window includes only identifiers other than the target identifier, and send a second sequence and a second wireless signal ;
  • the first bit block is used to generate the first wireless signal, the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the second The wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine configuration information of the first wireless signal, the The configuration information includes at least one of the occupied time-frequency resources, the modulation and coding method used,
  • the first communication device 450 includes a memory that stores a computer-readable instruction program, and the computer-readable instruction program generates an action when executed by at least one processor.
  • the action includes: sending the first A sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carrying a target identification; and monitoring the first type of information in a first time window; in the first time window The first type of information is not detected, and a second sequence and a second wireless signal are sent; a first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; The first bit block is also used to generate the second wireless signal, the second wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification; The second information is used to determine configuration information of the first wireless signal, and the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • the first communication device 450 includes a memory that stores a computer-readable instruction program, and the computer-readable instruction program generates an action when executed by at least one processor.
  • the action includes: sending the first A sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carrying a target identification; and monitoring the first type of information in a first time window; in the first time window
  • the detected first type of information includes only identifiers other than the target identifier, and transmits a second sequence and a second wireless signal; a first bit block is used to generate the first wireless signal, the first The bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the second wireless signal carries second information; the second sequence and the second wireless signal At least one carries the target identifier; the second information is used to determine configuration information of the first wireless signal, the configuration information includes time-frequency resources occupied, modulation and coding methods used, and used At least one of the redundant versions.
  • the second communication device 410 apparatus includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to Use at least one processor together.
  • the second communication device 410 device at least: monitors the first sequence and the first wireless signal, at least one of the first sequence and the first wireless signal carries a target identification; and sends the first A type of information, the first type of information includes only identifiers other than the target identifier; and monitors the second sequence and the second wireless signal; the first bit block is used to generate the first wireless signal, the first The bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, the second wireless signal carries second information; the second sequence and the second wireless signal At least one carries the target identifier; the second information is used to determine configuration information of the first wireless signal, the configuration information includes time-frequency resources occupied, modulation and coding methods used, and used At least one of the redundant versions.
  • the second communication device 410 apparatus includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to Use at least one processor together.
  • the second communication device 410 device at least: monitors the first sequence and the first wireless signal, at least one of the first sequence and the first wireless signal carries a target identification; and abandons sending in the first time window The first type of information; and monitor the second sequence and the second wireless signal; the first bit block is used to generate the first wireless signal, the first bit block includes positive integer bits; the first bit block also Is used to generate the second wireless signal, the second wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is It is used to determine the configuration information of the first wireless signal, where the configuration information includes at least one of the occupied time-frequency resources, the modulation and coding method used, and the redundancy version used.
  • the apparatus of the second communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: monitoring A first sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carrying a target identification; and sending a first type of information in a first time window, the first type of information includes only An identification other than the target identification; and monitoring a second sequence and a second wireless signal; a first bit block is used to generate the first wireless signal, the first bit block includes positive integer bits; the first A one-bit block is also used to generate the second wireless signal, the second wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification; the The second information is used to determine configuration information of the first wireless signal, and the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • the apparatus of the second communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: monitoring A first sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carrying a target identification; and giving up sending the first type of information in the first time window; and monitoring the second sequence and A second wireless signal; a first bit block is used to generate the first wireless signal, the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal, The second wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine the configuration of the first wireless signal Information, the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • the first communication device 450 corresponds to the first node in this application.
  • the second communication device 410 corresponds to the second node in this application.
  • the first communication device 450 is a UE.
  • the second communication device 410 is a base station.
  • At least one of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 is used to transmit the first A sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carries a target identification; the antenna 420, the receiver 418, the multi-antenna receiving processor 472, so The receiving processor 470, at least one of the controller/processor 475 is used to monitor a first sequence and a first wireless signal, at least one of the first sequence and the first wireless signal carries Target identification.
  • At least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, and the receiving processor 456 is used to monitor the first type of information in the first time window .
  • At least one of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 is used to send the first type of information in the first time window .
  • the first type of information includes only identifiers other than the target identifier.
  • At least one of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 is used to abandon sending the first type in the first time window information.
  • the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, at least one of the controller/processor 459 is used to transmit the second sequence and the second wireless signal.
  • the antenna 452, the transmitter 454, and the multiple antenna At least one of the transmission processor 457, the transmission processor 468, and the controller/processor 459 is used to transmit the second sequence and the second wireless signal.
  • At least one of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller/processor 475 is used to monitor the first Two sequences and second wireless signals.
  • At least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, and the receiving processor 456 is used to receive the first signaling; the antenna 420, At least one of the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 is used to send the first signaling.
  • Embodiment 5 illustrates a flowchart of a second sequence and a second wireless signal, as shown in FIG. 5.
  • the first node U1 and the second node U2 communicate through the air interface.
  • the part marked F0 in the figure is optional.
  • step S10 receiving a first signaling; transmitting a first sequence and a first wireless signal in step S11; step S12 in the first type of information is monitored at a first time window; in Step S13 Send the second sequence and the second wireless signal.
  • Step S20 For the second node U2, transmitted in a first signaling step S20; monitoring a first sequence and a first wireless signal in step S21; step S22 in the first type of information transmitted in the first time window; in Step S23 Monitor the second sequence and the second wireless signal.
  • At least one of the first sequence and the first wireless signal carries a target identifier; the first node U1 in the first type of information detected in the first time window Only the identification other than the target identification is included; the first bit block is used to generate the first wireless signal, the first bit block includes positive integer bits; the first bit block is also used to generate the The second wireless signal, the second wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identifier; the second information is used to determine the Configuration information of the first wireless signal, the configuration information includes at least one of the occupied time-frequency resources, the modulation and coding method used, and the redundancy version used; the first signaling is used to determine K1 Candidate sequences, the K1 is a positive integer; the first sequence is a candidate sequence among the K1 candidate sequences, and the second sequence is a candidate among the K1 candidate sequences Sequence; the first node U1 selects the first sequence among the K1 candidate sequences, and the first node
  • the first signaling is physical layer signaling.
  • the first signaling is high-level signaling.
  • the first signaling is RRC signaling.
  • the first sequence is sent using a first power value
  • the second sequence is sent using a second power value
  • the second power value is greater than the first power value
  • the second power value is The difference between the first power value is fixed, or the difference between the second power value and the first power value is configured by higher layer signaling.
  • neither the first power value nor the second power value is greater than a first threshold.
  • the first threshold is P PRACH, f, c (i) in TS 38.213.
  • the unit of the first power value is dBm (millidB), or the unit of the first power value is mW (milliwatt).
  • the unit of the second power value is dBm, or the unit of the second power value is mW.
  • the difference between the second power value minus the first power value is equal to a first offset, and the unit of the first offset is dB (decibel).
  • the first offset is equal to the powerRampingStep in TS 38.331.
  • the first offset is configured by RACH-ConfigGeneric IE (Information Elements) in TS 38.331.
  • the first wireless signal and the second wireless signal use the same transmission power.
  • both the first wireless signal and the second wireless signal are transmitted using the same transmission power as the first sequence.
  • both the first wireless signal and the second wireless signal are sent using the first power value in this application.
  • the first wireless signal and the second wireless signal occupy the same number of REs.
  • the first sequence and the second sequence occupy the same number of REs.
  • all the bits in the first bit block are used to generate the first wireless signal, and part of the bits in the first bit block are used to generate the second wireless signal.
  • the first wireless signal uses a first MCS (Modulation and Coding Scheme, modulation and coding method)
  • the second wireless signal uses a second MCS
  • the first bit block is formed according to the first MCS
  • the number of modulation symbols is greater than the number of modulation symbols formed by the first bit block according to the second MCS
  • the first wireless signal and the second wireless signal both occupy M REs, and M is a positive integer
  • M REs occupied by the second wireless signal REs not occupied by the modulation symbols generated by the first bit block are used to transmit the second information.
  • the second sequence is used to determine that the second wireless signal is for the second transmission of the first wireless signal.
  • the second sequence is used to indicate that the second wireless signal is for the second transmission of the first wireless signal.
  • the first node supports a total of Q1 transmissions for the first wireless signal, and the first transmission in the Q1 transmissions is indicated by the first sequence, the The second transmission in the Q1 transmission is indicated by the second sequence, and the i-th transmission in the Q1 transmission is indicated by the i-th sequence, where i is a positive integer greater than 1 and not greater than Q1;
  • the first sequence, the second sequence, and any two characteristic sequences in the i-th sequence are orthogonal, and the order in which the first node selects the first sequence to the Q1-th sequence is fixed .
  • the second wireless signal includes a target reference signal, and the target reference signal is used to determine that the second wireless signal is for the second transmission of the first wireless signal.
  • the scrambling code of the target reference signal is used to indicate that the second wireless signal is for the second transmission of the first wireless signal.
  • the characteristic sequence that generates the target reference signal is used to indicate that the second wireless signal is for the second transmission of the first wireless signal.
  • the first node supports a total of Q1 transmissions for the first wireless signal; the first two transmissions of the Q1 transmission correspond to the first wireless signal and the Two wireless signals, the ith transmission in the Q1 transmission corresponds to the ith wireless signal; the first wireless signal includes a first reference signal, the second wireless signal includes the target reference signal, the i The wireless signal includes the i-th reference signal; the i is a positive integer greater than 1 and not greater than Q1; the first reference signal, the target reference signal and any two reference signals in the i-th reference signal are disturbed
  • the codes are orthogonal; or, the first reference signal, the target reference signal, and the generated sequence of any two reference signals in the i-th reference signal are orthogonal.
  • the second information is used to indicate that the second wireless signal is for the second transmission of the first wireless signal.
  • the second node U2 monitors the first sequence and the first wireless signal, and the first sequence is not correctly detected, and the second node U2 is located at the first sequence.
  • a sequence other than the first sequence is detected in the occupied time-frequency resources, and the second node U2 sends the first type of information, and the first type of information includes only identifiers other than the target identifier
  • the identifier other than the target identifier corresponds to the sequence other than the first sequence.
  • the failure to correctly detect the first sequence means that the first sequence is generated from a first feature sequence, and the first node fails to determine the The first feature sequence.
  • the second node U2 monitors the first sequence and the first wireless signal, and the first wireless signal is not correctly detected, and the second node U2 is in the first wireless
  • a wireless signal other than the first wireless signal is detected in the time-frequency resources occupied by the signal, the wireless signal other than the first wireless signal includes an identifier other than the target identifier; the second node U2 sends The first type of information, and the first type of information includes only the identification other than the target identification.
  • the failure to correctly detect the first wireless signal means that the first wireless signal includes a CRC sequence, and the second node U2 determines based on the detection of the CRC sequence The first wireless signal is not decoded correctly.
  • the failure to correctly detect the first wireless signal means that the first wireless signal includes a CRC sequence, and the second node U2 receives the first wireless signal After that, the cyclic sequence polynomial of the CRC sequence is divided by the modulo 2 of the CRC sequence part of the received first wireless signal and the remainder is not 0. The second node U2 considers that the first wireless signal is not Correct decoding.
  • Embodiment 6 illustrates a flowchart of a second sequence and a second wireless signal, as shown in FIG. 6.
  • the first node U3 and the second node U4 communicate through the air interface.
  • the part marked as F1 in the figure is optional; in the case of no conflict, the embodiments, sub-embodiments, and subsidiary embodiments in Embodiment 5 can be applied to Embodiment 6.
  • step S30 For the first point U3, received in step S30, a first signaling; transmitting a first sequence and a first wireless signal in step S31; step S32 in the first type of information is monitored at a first time window; in Step S33 Send the second sequence and the second wireless signal.
  • step S40 For the second point U4, in step S40 a first transmission signaling; monitoring a first sequence and a first wireless signal in step S41; step S42 abandon first type of information transmitted in the first time window; in step S43 Monitoring the second sequence and the second wireless signal.
  • At least one of the first sequence and the first wireless signal carries a target identifier; the first node U3 does not detect the first type of information in the first time window;
  • the first bit block is used to generate the first wireless signal, the first bit block includes positive integer bits;
  • the first bit block is also used to generate the second wireless signal, the second wireless
  • the signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification;
  • the second information is used to determine configuration information of the first wireless signal, the configuration
  • the information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used;
  • the first signaling is used to determine K1 candidate sequences, where K1 is a positive integer;
  • the first sequence is a candidate sequence among the K1 candidate sequences, and the second sequence is a candidate sequence among the K1 candidate sequences;
  • the first node U3 is in the The first sequence is selected by itself among K1 candidate sequences, and the first node U3 select
  • the second node U4 monitors the first sequence and the first wireless signal, and the first sequence is not correctly detected, and the second node U4 gives up sending the first type of information .
  • the second node U4 does not detect the first sequence and other sequences than the first sequence in the time-frequency resources occupied by the first sequence.
  • the second node U2 monitors the first sequence and the first wireless signal, and the first wireless signal is not correctly detected, and the second node U4 gives up sending the first type information.
  • the second node U4 does not detect the first wireless signal and other identifiers other than the target identifier in the time-frequency resources occupied by the first wireless signal Wireless signal.
  • Embodiment 7 illustrates a schematic diagram of a first time window, as shown in FIG. 7.
  • the first node sends the first sequence and the first wireless signal in the first time unit shown in the figure, and then the first node shows the first
  • the first type of information is monitored in the time window; if the first type of information is not detected in the first time window, or if only the first type of information detected in the first time window is Including an identification other than the target identification, the first node sends the second sequence and the second wireless signal in the second time unit shown in the figure;
  • the first time window occupies consecutive positive integer time slots.
  • the first time unit occupies one time slot.
  • the second time unit occupies one time slot.
  • the duration of the first time window in the time domain is fixed, or the duration of the first time window in the time domain is configured by higher layer signaling.
  • the time difference between the end time of the first time unit in the time domain and the start time of the first time window in the time domain is fixed.
  • the time difference between the end time of the first time unit in the time domain and the start time of the first time window in the time domain is related to the subcarrier interval used by the first wireless signal.
  • the time difference between the cut-off time of the first time unit in the time domain and the start time of the first time window in the time domain is configured by high-layer signaling.
  • the time difference between the end time of the first time window in the time domain and the start time of the second time unit in the time domain is fixed.
  • the time difference between the end time of the first time window in the time domain and the start time of the second time unit in the time domain is related to the subcarrier interval used by the first wireless signal.
  • the time difference between the end time of the first time window in the time domain and the start time of the second time unit in the time domain is configured by high-layer signaling.
  • Embodiment 8 illustrates a schematic diagram of a first sequence, a first wireless signal, a second sequence, and a second wireless signal, as shown in FIG. 8.
  • the first sequence and the first wireless signal are FDM (Frequency Domain Multiplex)
  • the second sequence and the second wireless signal are FDM.
  • the first sequence is used to indicate the location of frequency domain resources occupied by the first wireless signal.
  • the second sequence is used to indicate the location of frequency domain resources occupied by the second wireless signal.
  • the position of the frequency domain resource occupied by the first sequence corresponds to the position of the frequency domain resource occupied by the first wireless signal.
  • the position of the frequency domain resource occupied by the second sequence corresponds to the position of the frequency domain resource occupied by the second wireless signal.
  • the frequency domain resource occupied by the first sequence and the frequency domain resource occupied by the first wireless signal are continuous in the frequency domain.
  • the frequency domain resource occupied by the second sequence and the frequency domain resource occupied by the second wireless signal are continuous in the frequency domain.
  • Embodiment 9 illustrates a schematic diagram of a first wireless signal and a second wireless signal, as shown in FIG. 9.
  • the first wireless signal and the second wireless signal occupy the same number of REs
  • the second wireless signal includes second signaling
  • the second information is used to determine the first
  • the second wireless signal is for the second transmission of the first wireless signal.
  • all the bits of the first bit block in this application are used to generate the first wireless signal, and part of the bits of the first bit block in this application are used to generate the first Two wireless signals.
  • the first bit block in the present application is used to generate M1 bit sub-blocks, the M1 bit sub-blocks are all used to generate the first wireless signal, and the M1 bits M2 bit sub-blocks in the sub-block are used to generate the second wireless signal; M1 is a positive integer greater than 1, and M2 is a positive integer less than M1.
  • REs not occupied by modulation symbols generated by the first bit block among REs occupied by the second wireless signal are used to transmit the second information.
  • Embodiment 10 illustrates a schematic diagram of Q1 wireless signals, as shown in FIG. 10.
  • the Q1 wireless signals are all directed to the transmission of the first wireless signal in this application, wherein the first wireless signal in the Q1 wireless signals is the first wireless signal in this application A wireless signal, the second wireless signal of the Q1 wireless signals is the second wireless signal in this application; the Q1 wireless signals are wireless signal #1 to wireless signal #Q1 in time sequence;
  • the Q1 is a positive integer greater than 1.
  • the Q1 wireless signals include Q1 reference signals; the Q1 reference signals are respectively reference signal #1 to reference signal #Q1; the given reference signal is a reference among the Q1 reference signals Signal #i, where i is a positive integer greater than 0 and not greater than Q1, the given reference signal is used to indicate the i, and the i is used to indicate a wireless signal # including the given reference signal i is the i-th wireless signal among the Q1 wireless signals.
  • the transmission power of the Q1 wireless signals remains unchanged.
  • the Q1 wireless signals respectively correspond to Q1 feature sequences
  • the first feature sequence in the Q1 feature sequences is the first sequence in the present application
  • the Q1 feature sequences is the second sequence in the present application
  • the transmission power of the Q1 feature sequences increases sequentially in the time domain order.
  • the Q1 wireless signals respectively correspond to Q1 feature sequences
  • the first feature sequence in the Q1 feature sequences is the first sequence in the present application
  • the Q1 feature sequences is the second sequence in the present application
  • the transmission power of the Q1 feature sequences increases sequentially in the time domain order.
  • the Q1 wireless signals respectively correspond to Q1 feature sequences
  • the first feature sequence in the Q1 feature sequences is the first sequence in the present application
  • the Q1 feature sequences is the second sequence in the present application
  • the transmission power of the i-th feature sequence in the Q1 feature sequences is equal to P+R*(i-1)
  • the unit of P is dBm
  • the unit of R is dB
  • the P is related to the path loss (Pathloss) between the first node and the second node, and the R is fixed or configured through high-level signaling.
  • the Q1 is fixed, or the Q1 is configured through higher layer signaling.
  • Embodiment 11 illustrates a structural block diagram of a processing device in a first node, as shown in FIG. 11.
  • the processing device of the first node 1100 includes a first transceiver 1101, a first receiver 1102, and a first transmitter 1103.
  • the first transceiver 1101 sends a first sequence and a first wireless signal, and at least one of the first sequence and the first wireless signal carries a target identifier;
  • the first receiver 1102 monitors the first type of information in the first time window
  • the first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal,
  • the second wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine the configuration of the first wireless signal Information, the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • the first transceiver 1101 receives first signaling; the first signaling is used to determine K1 candidate sequences, the K1 is a positive integer; the first sequence is the K1 An alternative sequence among the alternative sequences, and the second sequence is an alternative sequence among the K1 alternative sequences; the first node selects the first among the K1 alternative sequences by itself A sequence, the first node selects the second sequence among the K1 candidate sequences.
  • the first sequence is transmitted at a first power
  • the second sequence is transmitted at a second power
  • the second power is greater than the first power
  • the second power and the first power The difference is fixed, or the difference between the second power and the first power is configured by higher layer signaling.
  • the first wireless signal and the second wireless signal use the same transmission power.
  • the first wireless signal and the second wireless signal occupy the same number of REs.
  • the second sequence is used to determine that the second wireless signal is for the second transmission of the first wireless signal; or the second wireless signal includes a target reference signal, the target reference The signal is used to determine that the second wireless signal is for the second transmission of the first wireless signal.
  • the first transceiver 1101 includes the antenna 452, the receiver/transmitter 454, the multi-antenna reception processor 458, the reception processor 456, the transmission processor 468, and the multi-antenna transmission processor in Embodiment 4. 457. At least the former 6 of the controller/processor 459.
  • the first receiver 1102 includes at least the former four of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, and the controller/processor 459 in Embodiment 4.
  • the first transmitter 1103 includes at least the former four of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 in Embodiment 4.
  • Embodiment 12 illustrates a structural block diagram of a processing device in a second node, as shown in FIG. 12.
  • the processing device of the second node 1200 includes a second transceiver 1201, a second transmitter 1202, and a second receiver 1203.
  • the second transceiver 1201 monitors the first sequence and the first wireless signal, at least one of the first sequence and the first wireless signal carries a target identifier;
  • the second transmitter 1202 sends the first type of information in the first time window, and the first type of information includes only the identification other than the target identification; or quits sending the first type of information in the first time window;
  • the second receiver 1203 monitors the second sequence and the second wireless signal
  • the first bit block is used to generate the first wireless signal, and the first bit block includes positive integer bits; the first bit block is also used to generate the second wireless signal,
  • the second wireless signal carries second information; at least one of the second sequence and the second wireless signal carries the target identification; the second information is used to determine the configuration of the first wireless signal Information, the configuration information includes at least one of time-frequency resources occupied, modulation and coding methods used, and redundancy versions used.
  • the second transceiver 1201 sends first signaling; the first signaling is used to determine K1 candidate sequences, the K1 is a positive integer; the first sequence is the K1 One of the candidate sequences, and the second sequence is one of the K1 candidate sequences; the sender of the first sequence selects among the K1 candidate sequences The first sequence, and the sender of the first sequence selects the second sequence among the K1 candidate sequences.
  • the first sequence is transmitted at a first power
  • the second sequence is transmitted at a second power
  • the second power is greater than the first power
  • the second power and the first power The difference is fixed, or the difference between the second power and the first power is configured by higher layer signaling.
  • the first wireless signal and the second wireless signal use the same transmission power.
  • the first wireless signal and the second wireless signal occupy the same number of REs.
  • the second sequence is used to determine that the second wireless signal is for the second transmission of the first wireless signal; or the second wireless signal includes a target reference signal, the target reference The signal is used to determine that the second wireless signal is for the second transmission of the first wireless signal.
  • the second transceiver 1201 includes the antenna 420, the transmitter/receiver 418, the multi-antenna transmission processor 471, the transmission processor 416, the multi-antenna reception processor 472, and the reception processor in Embodiment 4. 470. At least the former 6 of the controller/processor 475.
  • the second transmitter 1202 includes at least the former four of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller/processor 475 in Embodiment 4.
  • the second receiver 1203 includes at least the former four of the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, and the controller/processor 475 in Embodiment 4.
  • the first node and the second node in this application include but are not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, in-vehicle communication devices, vehicles, vehicles, RSUs, aircrafts , Aircraft, drones, remote control aircraft and other wireless communication equipment.
  • the base stations in this application include but are not limited to wireless communication equipment such as macro cell base station, micro cell base station, home base station, relay base station, eNB, gNB, transmission and reception node TRP, GNSS, relay satellite, satellite base station, aerial base station, RSU, etc. .

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Abstract

本申请公开了一种被用于无线通信的节点中的方法和装置。第一节点首先发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；随后在第一时间窗中监测第一类信息；如果在第一时间窗中没有检测到针对第一序列和第一无线信号的反馈，所述第一节点发送第二序列和第二无线信号；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二无线信号包括的第二信息被用于确定所述第一无线信号的配置信息。本申请通过上述设计，实现两步随机接入场景下消息A所包括的前导序列和信息的重传，进而提高频谱效率，改进两步随机接入场景下消息A的传输性能。

Description

一种被用于无线通信的节点中的方法和装置 技术领域
本申请涉及无线通信系统中的传输方法和装置，尤其涉及无线通信中随机接入的通信方法和装置。
背景技术
未来无线通信系统的应用场景越来越多元化，不同的应用场景对系统提出了不同的性能要求。为了满足多种应用场景的不同性能需求，在3GPP(3rd Generation Partner Project，第三代合作伙伴项目)RAN(Radio Access Network，无线接入网)#82次全会上决定对NR(New Radio，新无线)2-step(两步)RACH(Random Access Channel，随机接入信道)进行WI(Work Item，工作项目)阶段的标准化工作。
相较传统的4-step RACH，2-step RACH会更加快速实现用户设备的接入，且利于小数据包的传输，而在2-step RACH中，MsgA(消息A)将包括前导序列(Pramble)和数据。
发明内容
传统的4-step RACH中，用户设备在Msg1(消息1)中仅传输前导序列，且在前导序列对应的RAR(Random Access Response，随机接入响应)时间窗中等待基站发送的针对Msg1的反馈Msg2(消息2)；随后用户设备根据Msg2再发送Msg3以向基站确定用户设备的唯一标识以进行冲突解决。2-step RACH中，MsgA将会部分承载4-step RACH中Msg1和Msg3的部分功能。然而4-step RACH中，Msg1不存在HARQ，而Msg3存在HARQ(Hybrid Automatic Repeat request，混合自动重传请求)以支持重传。在2-step RACH中，当MsgA同时承载传统系统中Msg1和Msg3(消息3)的功能时，如何重新发送MsgA需要被重新考虑。
针对上述问题的一个简单的解决方案是，MsgA每次传输均认为是初次传输，即基站不会将多个MsgA进行合并以获得合并增益，然而此种方法显然会降低MsgA中数据部分的性能。针对上述问题，本申请公开了一种解决方案用以支持单播和组播传输。需要说明的是，在不冲突的情况下，本申请的第一节点中的实施例和实施例中的特征可以应用到基站中，与此同时，本申请的第二节点中的实施例和实施例中的特征可以应用到终端设备中。在不冲突的情况下，本申请的实施例和实施例中的特征可以任意相互组合。
本申请公开了一种被用于无线通信的第一节点中的方法，其特征在于包括：
发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
在第一时间窗中监测第一类信息；
在所述第一时间窗中所述第一类信息未被检测到，发送第二序列和第二无线信号；
其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
本申请公开了一种被用于无线通信的第一节点中的方法，其特征在于包括：
发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
在第一时间窗中监测第一类信息；
在所述第一时间窗中检测到第一类信息，且第一类信息中仅包括所述目标标识之外的标识，发送第二序列和第二无线信号；
其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，上述方法的好处在于：所述第一序列和所述第一无线信号构成MsgA，所述第二序列和所述第二无线信号是针对MsgA的重传；通过所述第二信息，所述第一节点能够指示本申请中的所述第二节点将所述第一无线信号和所述第二无线信号进行合并进而获得合并增益以提高MsgA中数据部分的接收性能。
根据本申请的一个方面，上述方法的特征在于包括：
接收第一信令；
其中，所述第一信令被用于确定K1个备选序列，所述K1是正整数；所述第一序列是所述K1个备选序列中的一个备选序列，且所述第二序列是所述K1个备选序列中的一个备选序列；所述第一节点在所述K1个备选序列中自行选择所述第一序列，所述第一节点在所述K1个备选序列中自行选择所述第二序列。
作为一个实施例，上述方法的优点在于：本申请中的所述第二节点预先配置K1个备选序列，以降低所述第二节点在检测所述第一序列和所述第二序列时的复杂度。
根据本申请的一个方面，上述方法的特征在于，所述第一序列采用第一功率值发送，所述第二序列采用第二功率值发送，所述第二功率值大于所述第一功率值；所述第二功率值与所述第一功率值的差是固定的，或者所述第二功率值与所述第一功率值的差是通过高层信令配置的。
作为一个实施例，上述方法的优点在于：前导序列的发送进行功率抬升(Power Ramping)，进而保证前导序列的正交性，提高传输性能。
根据本申请的一个方面，上述方法的特征在于，所述第一无线信号和所述第二无线信号采用相同的发送功率。
作为一个实施例，上述方法的优点在于：通过合并增益的方式提高MsgA中数据部分的传输性能，避免无谓的提高功率而造成的对其它用户的干扰。
根据本申请的一个方面，上述方法的特征在于，所述第一无线信号和所述第二无线信号占用相同数量的RE(Resource Element，资源颗粒)。
作为一个实施例，上述方法的优点在于：所述第二信息的引入不增加额外的时频资源的占用，提高频谱效率。
根据本申请的一个方面，上述方法的特征在于，所述第二序列被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送；或者所述第二无线信号包括目标参考信号，所述目标参考信号被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送。
作为一个实施例，上述方法的优点在于：当所述第二无线信号和第一无线信号的传输符合某种规律，且所述某种规律不需要显性信令指示时；例如所述第二无线信号仅包括所述第一比特块中的部分比特时，且还存在第三无线信号是针对所述第一无线信号的第三次重传时；上述方法能够使所述第二节点采用正确的合并方式和译码方式接收针对一个MsgA的多次重传。
本申请公开了一种被用于无线通信的第二节点中的方法，其特征在于包括：
监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
在第一时间窗中发送第一类信息，第一类信息中仅包括所述目标标识之外的标识；
监测第二序列和第二无线信号；
其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特； 所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
本申请公开了一种被用于无线通信的第二节点中的方法，其特征在于包括：
监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
放弃在第一时间窗中发送第一类信息；
监测第二序列和第二无线信号；
其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
根据本申请的一个方面，上述方法的特征在于包括：
发送第一信令；
其中，所述第一信令被用于确定K1个备选序列，所述K1是正整数；所述第一序列是所述K1个备选序列中的一个备选序列，且所述第二序列是所述K1个备选序列中的一个备选序列；所述第一序列的发送者在所述K1个备选序列中自行选择所述第一序列，且所述第一序列的发送者在所述K1个备选序列中自行选择所述第二序列。
根据本申请的一个方面，上述方法的特征在于，所述第一序列采用第一功率值发送，所述第二序列采用第二功率值发送，所述第二功率值大于所述第一功率值；所述第二功率值与所述第一功率值的差是固定的，或者所述第二功率值与所述第一功率值的差是通过高层信令配置的。
根据本申请的一个方面，上述方法的特征在于，所述第一无线信号和所述第二无线信号采用相同的发送功率。
根据本申请的一个方面，上述方法的特征在于，所述第一无线信号和所述第二无线信号占用相同数量的RE。
根据本申请的一个方面，上述方法的特征在于，所述第二序列被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送；或者所述第二无线信号包括目标参考信号，所述目标参考信号被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送。
本申请公开了一种被用于无线通信的第一节点，其特征在于包括：
第一收发机，发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
第一接收机，在第一时间窗中监测第一类信息；
第一发射机，在所述第一时间窗中所述第一类信息未被检测到，发送第二序列和第二无线信号；
其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
本申请公开了一种被用于无线通信的第一节点，其特征在于包括：
第一收发机，发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
第一接收机，在第一时间窗中监测第一类信息；
第一发射机，在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识，发送第二序列和第二无线信号；
其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
本申请公开了一种被用于无线通信的第二节点，其特征在于包括：
第二收发机，监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
第二发射机，在第一时间窗中发送第一类信息，第一类信息中仅包括所述目标标识之外的标识；
第二接收机，监测第二序列和第二无线信号；
其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
本申请公开了一种被用于无线通信的第二节点，其特征在于包括：
第二收发机，监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
第二发射机，放弃在第一时间窗中发送第一类信息；
第二接收机，监测第二序列和第二无线信号；
其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，和传统方案相比，本申请具备如下优势：
-.所述第一序列和所述第一无线信号构成MsgA，所述第二序列和所述第二无线信号是针对MsgA的重传；通过所述第二信息，所述第一节点能够指示本申请中的所述第二节点将所述第一无线信号和所述第二无线信号进行合并进而获得合并增益以提高MsgA中数据部分的接收性能。
-.前导序列的发送进行功率抬升，进而保证前导序列的正交性，提高传输性能；与此同时，第一无线信号和第二无线信号采用相同的功率，接收端通过合并增益的方式提高MsgA中数据部分的传输性能，避免无谓的提高功率而造成的对其它用户的干扰。
-.当所述第二无线信号和第一无线信号的传输符合某种规律，且所述规律不需要显性信令指示时；例如所述第二无线信号仅包括所述第一比特块中的部分比特时，且还存在第三无线信号是针对所述第一无线信号的第三次重传时；上述方法能够使所述第二节点采用正确的合并方式和译码方式接收针对一个MsgA的多次重传。
附图说明
通过阅读参照以下附图中的对非限制性实施例所作的详细描述，本申请的其它特征、目 的和优点将会变得更加明显：
图1示出了根据本申请的一个实施例的第一序列和第一无线信号的流程图；
图2示出了根据本申请的一个实施例的网络架构的示意图；
图3示出了根据本申请的一个实施例的用户平面和控制平面的无线协议架构的实施例的示意图；
图4示出了根据本申请的一个实施例的第一节点和第二节点的示意图；
图5示出了根据本申请的一个实施例的第二序列和第二无线信号的流程图；
图6示出了根据本申请的一个实施例的第二序列和第二无线信号的流程图；
图7示出了根据本申请的一个实施例的第一时间窗的示意图；
图8示出了根据本申请的一个第一序列、第一无线信号、第二序列和第二无线信号的示意图；
图9示出了根据本申请的一个第一无线信号和第二无线信号的示意图；
图10示出了根据本申请的一个Q1个无线信号的示意图；
图11示出了根据本申请的一个实施例的用于第一节点中的处理装置的结构框图；
图12示出了根据本申请的一个实施例的用于第二节点中的处理装置的结构框图；
具体实施方式
下文将结合附图对本申请的技术方案作进一步详细说明，需要说明的是，在不冲突的情况下，本申请的实施例和实施例中的特征可以任意相互组合。
实施例1
实施例1示例了执行针对第一序列和第一无线信号的流程图，如附图1所示。
在实施例1中，本申请中的所述第一节点首先发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；随后在第一时间窗中监测第一类信息；如果在所述第一时间窗中所述第一类信息未被检测到，或者如果在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识，发送第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述目标标识被用于标识所述第一节点。
作为一个实施例，所述目标标识与所述第一节点的S-TMSI(SAE Temporary Mobile Subscriber Identity，SAE临时移动用户识别码)有关，其中SAE(System Architecture Evolution)是系统架构演进。
作为一个实施例，所述目标标识与所述第一节点的IMSI(International Mobile Subscriber Identification Number，国际移动用户识别码)有关。
作为一个实施例，所述目标标识是所述第一节点生成的随机数。
作为一个实施例，所述第一序列携带所述目标标识。
作为该实施例的一个子实施例，上述短语所述第一序列携带所述目标标识的意思包括：所述目标标识被用于生成所述第一序列。
作为一个实施例，所述第一无线信号携带所述目标标识。
作为该实施例的一个子实施例，上述短语所述第一无线信号携带所述目标标识的意思是：所述第一无线信号包括所述目标标识。
作为该实施例的一个子实施例，上述短语所述第一无线信号携带所述目标标识的意思是：所述第一无线信号通过所述目标标识加扰(Scrambling)。
作为一个实施例，所述第一序列和所述第二序列是相同的特征序列。
作为该实施例的一个子实施例，所述目标标识被用于生成所述相同的特征序列。
作为一个实施例，所述第一序列和所述第二序列分别是不同的特征序列。
作为该实施例的一个子实施例，所述目标标识被用于生成所述第一序列，第二标识被用于生成所述第二序列，所述目标标识和所述第二标识是不同的。
作为该子实施例的一个附属实施例，所述目标标识和所述第二标识是所述第一节点生成的两个不同的随机数。
作为该子实施例的一个附属实施例，所述目标标识和所述第二标识均与所述第一节点的S-TMSI有关，或者所述目标标识和所述第二标识均与所述第一节点的IMSI有关。
作为一个实施例，所述第一序列和所述第一无线信号被用于发送Msg-A。
作为一个实施例，所述第二序列和所述第二无线信号被用于发送Msg-A。
作为一个实施例，所述第一比特块中的全部比特被用于生成所述第一无线信号，所述第一比特块中的部分比特被用于生成所述第二无线信号。
作为一个实施例，所述第二序列携带所述目标标识。
作为该实施例的一个子实施例，上述短语所述第二序列携带所述目标标识的意思包括：所述目标标识被用于生成所述第二序列。
作为一个实施例，所述第二无线信号携带所述目标标识。
作为该实施例的一个子实施例，上述短语所述第二无线信号携带所述目标标识的意思是：所述第二无线信号包括所述目标标识。
作为一个实施例，所述第一序列所占用的物理层信道包括PRACH(Physical Random Access Channel，物理随机接入信道)。
作为一个实施例，所述第二序列所占用的物理层信道包括PRACH。
作为一个实施例，所述第一序列占用第一时频资源集合，所述第一无线信号占用第二时频资源集合，所述第一时频资源集合的时频位置与所述第二时频资源集合的时频位置有关。
作为一个实施例，所述第一序列占用第一时频资源集合，所述第一无线信号占用第二时频资源集合，所述第一时频资源集合的时频位置被用于确定所述第二时频资源集合的时频位置。
作为一个实施例，所述第一序列占用第一时频资源集合，所述第一无线信号占用第二时频资源集合，所述第一序列被用于确定所述第二时频资源集合的时频位置。
作为上述三个实施例的一个子实施例，所述第一时频资源集合的时频位置是通过高层信令配置的。
作为上述三个实施例的一个子实施例，所述第一时频资源集合的时频位置是预定义的。
作为一个实施例，所述第二序列占用第三时频资源集合，所述第二无线信号占用第四时频资源集合，所述第三时频资源集合的时频位置与所述第四时频资源集合的时频位置有关。
作为一个实施例，所述第二序列占用第三时频资源集合，所述第二无线信号占用第四时频资源集合，所述第三时频资源集合的时频位置被用于确定所述第四时频资源集合的时频位置。
作为一个实施例，所述第二序列占用第三时频资源集合，所述第二无线信号占用第四时频资源集合，所述第二序列被用于确定所述第四时频资源集合的时频位置。
作为上述三个实施例的一个子实施例，所述第三时频资源集合的时频位置是通过高层信令配置的。
作为上述三个实施例的一个子实施例，所述第三时频资源集合的时频位置是预定义的。
作为一个实施例，所述第一无线信号所占用的物理层信道包括PUSCH(Physical Uplink Shared Channel，物理上行共享信道)。
作为一个实施例，所述第二无线信号所占用的物理层信道包括PUSCH。
作为一个实施例，所述第一无线信号包括DMRS(Demodulation Reference Signal，解调参考信号)。
作为一个实施例，所述第二无线信号包括DMRS。
作为一个实施例，所述第二无线信号是所述第一无线信号的重传。
作为一个实施例，所述第一序列和所述第二序列均携带所述目标标识，所述第二序列是所述第一序列的重传。
作为一个实施例，所述第二无线信号包括UCI(Uplink Control Information，上行控制信息)，所述UCI包括所述第一无线信号的配置信息。
作为一个实施例，所述第一比特块中携带所述第二信息。
作为一个实施例，所述第二无线信号包括UCI，所述UCI被用于携带所述第二信息。
作为一个实施例，所述第二无线信号包括PUSCH和参考信号，所述参考信号被用于携带所述第二信息。
作为一个实施例，所述第二无线信号包括PUSCH、参考信号和UCI，所述UCI被用于携带所述第二信息。
作为一个实施例，所述第一类信息是针对所述第一序列和所述第一无线信号的反馈。
作为一个实施例，所述第一类信息是Msg-B(消息B)。
作为一个实施例，所述第一类信息所占用的物理层信道包括PDSCH(Physical Downlink Shared Channel，物理下行共享信道)。
作为一个实施例，所述第一类信息包括第一类物理层信息和所述第一类高层信息，所述第一类物理层信息所占用的物理层信道是第一PDCCH，所述第一类高层信息所占用的物理层信道是第一PDSCH。
作为该实施例的一个子实施例，上述短语在所述第一时间窗中所述第一类信息未被检测到的意思是：所述第一PDCCH未被所述第一节点检测到。
作为该子实施例的一个附属实施例，上述短语所述第一PDCCH未被检测到的意思是：所述第一PDCCH包括通过给定RNTI(Radio Network Temporary Identifier,无线网络临时标识)加扰的CRC(Cyclic Redundancy Check，循环冗余校验)序列，所述第一节点通过所述给定RNTI做CRC序列校验且所述CRC序列校验未成功。
作为该子实施例的一个附属实施例，上述短语所述第一PDCCH未被检测到的意思是：所述第一PDCCH包括CRC序列，所述第一节点在接收到所述第一PDCCH后用接收到的所述第一PDCCH的CRC序列部分对所述CRC序列的循环生成多项式去做模2除且余数不为0。
作为该实施例的一个子实施例，上述短语在所述第一时间窗中所述第一类信息未被检测到的意思是：所述第一PDSCH未被所述第一节点正确译码。
作为该子实施例的一个附属实施例，上述短语所述第一PDSCH未被检测到的意思是：所述第一PDSCH未被所述第一节点正确译码。
作为该子实施例的一个附属实施例，上述短语所述第一PDSCH未被检测到的意思是：所述第一PDSCH包括CRC序列，所述第一节点在接收到所述第一PDSCH后用接收到的所述第一PDSCH的CRC序列部分进行CRC序列校验失败。
作为一个实施例，上述短语在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识的意思包括：所述第一类信息包括第一类高层信息，所述第一类高层信息包括K1个第一类标识，所述K1是正整数，且所述K1个第一类标识中的任一标识不等于所述目标标识。
作为一个实施例，所述第二节点通过所述第一类信息向所述第一节点确定所述第二节点是否正确检测出所述第一序列，并正确译码所述第一无线信号。
作为一个实施例，所述第二节点通过所述第一类信息向所述第一节点确定所述第二节点是否响应所述第一节点发起的随机接入请求。
作为一个实施例，所述第一类信息包括第一类物理层信息和第一类高层信息，所述第一类物理层信息和所述第一类高层信息中的至少之一被用于确定K1个第一类标识，所述目标标识是所述K1个第一类标识中的一个第一类标识，所述第一节点认为所述第二节点正确检测出所述第一序列且正确译码所述第一无线信号。
作为一个实施例，所述第一时间窗在时域的持续时间的固定的，或者所述第一时间窗在时域的持续时间是通过高层信令配置的。
作为一个实施例，所述第一时间窗占用正整数个连续的时隙。
作为一个实施例，所述第一时间窗占用正整数个连续的子帧。
作为一个实施例，所述第一时间窗的起始时刻是发送所述第一无线信号的截止时刻，且所述第一时间窗的截止时刻是发送所述第二序列的起始时刻。
作为一个实施例，所述第一时间窗的起始时刻是发送所述第一无线信号的截止时刻与第一时间偏移量的和，且所述第一时间窗的截止时刻是发送所述第二序列的起始时刻；所述第一时间偏移量等于T个时隙，所述T是正整数且所述T是固定的。
作为一个实施例，本申请中的所述监测包括盲检测。
作为一个实施例，本申请中的所述监测包括接收并解调。
作为一个实施例，本申请中的所述监测包括接收并译码。
作为一个实施例，所述第一序列和所述第一无线信号在第一时间单元中被发送，所述第二序列和所述第二无线信号在第二时间单元中被发送，所述第一时间单元在时域早于所述第二时间单元。
实施例2
实施例2示例了网络架构的示意图，如附图2所示。
图2说明了5G NR，LTE(Long-Term Evolution，长期演进)及LTE-A(Long-Term Evolution Advanced，增强长期演进)系统的网络架构200的图。5G NR或LTE网络架构200可称为EPS(Evolved Packet System，演进分组系统)200某种其它合适术语。EPS 200可包括一个或一个以上UE(User Equipment，用户设备)201，NG-RAN(下一代无线接入网络)202，EPC(Evolved Packet Core，演进分组核心)/5G-CN(5G-Core Network,5G核心网)210，HSS(Home Subscriber Server，归属签约用户服务器)220和因特网服务230。EPS可与其它接入网络互连，但为了简单未展示这些实体/接口。如图所示，EPS提供包交换服务，然而所属领域的技术人员将容易了解，贯穿本申请呈现的各种概念可扩展到提供电路交换服务的网络或其它蜂窝网络。NG-RAN包括NR节点B(gNB)203和其它gNB204。gNB203提供朝向UE201的用户和控制平面协议终止。gNB203可经由Xn接口(例如，回程)连接到其它gNB204。gNB203也可称为基站、基站收发台、无线电基站、无线电收发器、收发器功能、基本服务集合(BSS)、扩展服务集合(ESS)、TRP(发送接收节点)或某种其它合适术语。gNB203为UE201提供对EPC/5G-CN 210的接入点。UE201的实例包括蜂窝式电话、智能电话、会话起始协议(SIP)电话、膝上型计算机、个人数字助理(PDA)、卫星无线电、非地面基站通信、卫星移动通信、全球定位系统、多媒体装置、视频装置、数字音频播放器(例如，MP3播放器)、相机、游戏控制台、无人机、飞行器、窄带物联网设备、机器类型通信设备、陆地交通工具、汽车、可穿戴设备，或任何其它类似功能装置。所属领域的技术人员也可将UE201称为移动台、订户台、移动单元、订户单元、无线单元、远程单元、移动装置、无线装置、无线通信装置、远程装置、移动订户台、接入终端、移动终端、无线终端、远程终端、手持机、用户代理、移动客户端、客户端或某个其它合适术语。gNB203通过S1/NG接口连接到EPC/5G-CN 210。EPC/5G-CN 210包括MME(Mobility Management Entity,移动性管理实体)/AMF(Authentication Management Field,鉴权管理域)/UPF(User Plane Function，用户平面功能)211、其它MME/AMF/UPF214、S-GW(Service Gateway，服务网关)212以及P-GW(Packet Date Network Gateway，分组数据网络网关)213。MME/AMF/UPF211是处理UE201与EPC/5G-CN 210之间的信令的控制节点。大体上，MME/AMF/UPF211提供承载和连接管理。所有用户IP(Internet Protocal，因特网协议)包是通过S-GW212传送，S-GW212自身连接到P-GW213。P-GW213提供UE IP地址分配以及其它功能。P-GW213连接到因特网服务230。因特网服务230包括运营商对应因特网协议服务，具体可包括因特网、内 联网、IMS(IP Multimedia Subsystem，IP多媒体子系统)和包交换串流服务。
作为一个实施例，所述UE201对应本申请中的所述第一节点。
作为一个实施例，所述gNB203对应本申请中的所述第二节点。
作为一个实施例，所述UE201与所述gNB203之间的空中接口是Uu接口。
作为一个实施例，所述UE201与所述gNB203之间的无线链路是蜂窝网链路。
作为一个实施例，本申请中的所述第一节点是所述UE201，本申请中的所述第二节点是所述gNB203。
作为一个实施例，本申请中的所述第一节点是所述UE201，本申请中的所述第二节点是所述UE201之外的一个终端设备。
作为一个实施例，本申请中的所述第一节点是所述UE201，本申请中的所述第二节点是所述UE201之外的一个终端设备，所述UE201和所述第二节点之间的空中接口是PC-5接口。
实施例3
实施例3示出了根据本申请的一个用户平面和控制平面的无线协议架构的实施例的示意图，如附图3所示。
附图3是说明用于用户平面和控制平面的无线电协议架构的实施例的示意图，图3用三个层展示用于第一节点和第二节点的无线电协议架构：层1、层2和层3。层1(L1层)是最低层且实施各种PHY(物理层)信号处理功能。L1层在本文将称为PHY301。层2(L2层)305在PHY301之上，且负责通过PHY301在第一节点与第二节点之间的链路。在用户平面中，L2层305包括MAC(Medium Access Control，媒体接入控制)子层302、RLC(Radio Link Control，无线链路层控制协议)子层303和PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)子层304，这些子层终止于网络侧上的第二节点处。虽然未图示，但第一节点可具有在L2层305之上的若干上部层，包括终止于网络侧上的P-GW处的网络层(例如，IP层)和终止于连接的另一端(例如，远端UE、服务器等等)处的应用层。PDCP子层304提供不同无线电承载与逻辑信道之间的多路复用。PDCP子层304还提供用于上部层数据包的标头压缩以减少无线电发射开销，通过加密数据包而提供安全性，以及提供第二节点之间的对UE的越区移交支持。RLC子层303提供上部层数据包的分段和重组装，丢失数据包的重新发射以及数据包的重排序以补偿由于HARQ(Hybrid Automatic Repeat reQuest，混合自动重传请求)造成的无序接收。MAC子层302提供逻辑与输送信道之间的多路复用。MAC子层302还负责在第一节点之间分配一个小区中的各种无线电资源(例如，资源块)。MAC子层302还负责HARQ操作。在控制平面中，用于第一节点和第二节点的无线电协议架构对于物理层301和L2层305来说大体上相同，但没有用于控制平面的标头压缩功能。控制平面还包括层3(L3层)中的RRC(Radio Resource Control，无线电资源控制)子层306。RRC子层306负责获得无线电资源(即，无线电承载)且使用第二节点与第一节点之间的RRC信令来配置下部层。
作为一个实施例，附图3中的无线协议架构适用于本申请中的所述第一节点。
作为一个实施例，附图3中的无线协议架构适用于本申请中的所述第二节点。
作为一个实施例，本申请中的所述第一序列生成于所述PHY301。
作为一个实施例，本申请中的所述第一无线信号生成于所述PHY301。
作为一个实施例，本申请中的所述第一无线信号生成于所述MAC子层302。
作为一个实施例，本申请中的所述第二序列生成于所述PHY301。
作为一个实施例，本申请中的所述第二无线信号生成于所述PHY301。
作为一个实施例，本申请中的所述第二无线信号生成于所述MAC子层302。
作为一个实施例，本申请中的所述第一类信息生成于所述PHY301。
作为一个实施例，本申请中的所述第一类信息生成于所述MAC子层302。
作为一个实施例，本申请中的所述第一信令生成于所述RRC子层306。
实施例4
实施例4示出了根据本申请的第一通信设备和第二通信设备的示意图，如附图4所示。 图4是在接入网络中相互通信的第一通信设备450以及第二通信设备410的框图。
第一通信设备450包括控制器/处理器459，存储器460，数据源467，发射处理器468，接收处理器456，多天线发射处理器457，多天线接收处理器458，发射器/接收器454和天线452。
第二通信设备410包括控制器/处理器475，存储器476，接收处理器470，发射处理器416，多天线接收处理器472，多天线发射处理器471，发射器/接收器418和天线420。
在从所述第二通信设备410到所述第一通信设备450的传输中，在所述第二通信设备410处，来自核心网络的上层数据包被提供到控制器/处理器475。控制器/处理器475实施L2层的功能性。在从所述第二通信设备410到所述第一通信设备450的传输中，控制器/处理器475提供标头压缩、加密、包分段和重排序、逻辑与输送信道之间的多路复用，以及基于各种优先级量度对所述第一通信设备450的无线电资源分配。控制器/处理器475还负责丢失包的重新发射，和到所述第一通信设备450的信令。发射处理器416和多天线发射处理器471实施用于L1层(即，物理层)的各种信号处理功能。发射处理器416实施编码和交错以促进所述第二通信设备410处的前向错误校正(FEC)，以及基于各种调制方案(例如，二元相移键控(BPSK)、正交相移键控(QPSK)、M相移键控(M-PSK)、M正交振幅调制(M-QAM))的信号群集的映射。多天线发射处理器471对经编码和调制后的符号进行数字空间预编码，包括基于码本的预编码和基于非码本的预编码，和波束赋型处理，生成一个或多个空间流。发射处理器416随后将每一空间流映射到子载波，在时域和/或频域中与参考信号(例如，导频)多路复用，且随后使用快速傅立叶逆变换(IFFT)以产生载运时域多载波符号流的物理信道。随后多天线发射处理器471对时域多载波符号流进行发送模拟预编码/波束赋型操作。每一发射器418把多天线发射处理器471提供的基带多载波符号流转化成射频流，随后提供到不同天线420。
在从所述第二通信设备410到所述第一通信设备450的传输中，在所述第一通信设备450处，每一接收器454通过其相应天线452接收信号。每一接收器454恢复调制到射频载波上的信息，且将射频流转化成基带多载波符号流提供到接收处理器456。接收处理器456和多天线接收处理器458实施L1层的各种信号处理功能。多天线接收处理器458对来自接收器454的基带多载波符号流进行接收模拟预编码/波束赋型操作。接收处理器456使用快速傅立叶变换(FFT)将接收模拟预编码/波束赋型操作后的基带多载波符号流从时域转换到频域。在频域，物理层数据信号和参考信号被接收处理器456解复用，其中参考信号将被用于信道估计，数据信号在多天线接收处理器458中经过多天线检测后恢复出以所述第一通信设备450为目的地的任何空间流。每一空间流上的符号在接收处理器456中被解调和恢复，并生成软决策。随后接收处理器456解码和解交错所述软决策以恢复在物理信道上由所述第二通信设备410发射的上层数据和控制信号。随后将上层数据和控制信号提供到控制器/处理器459。控制器/处理器459实施L2层的功能。控制器/处理器459可与存储程序代码和数据的存储器460相关联。存储器460可称为计算机可读媒体。在从所述第二通信设备410到所述第二通信设备450的传输中，控制器/处理器459提供输送与逻辑信道之间的多路分用、包重组装、解密、标头解压缩、控制信号处理以恢复来自核心网络的上层数据包。随后将上层数据包提供到L2层之上的所有协议层。也可将各种控制信号提供到L3以用于L3处理。
在从所述第一通信设备450到所述第二通信设备410的传输中，在所述第一通信设备450处，使用数据源467来将上层数据包提供到控制器/处理器459。数据源467表示L2层之上的所有协议层。类似于在从所述第二通信设备410到所述第一通信设备450的传输中所描述所述第二通信设备410处的发送功能，控制器/处理器459基于无线资源分配来实施标头压缩、加密、包分段和重排序以及逻辑与输送信道之间的多路复用，实施用于用户平面和控制平面的L2层功能。控制器/处理器459还负责丢失包的重新发射，和到所述第二通信设备410的信令。发射处理器468执行调制映射、信道编码处理，多天线发射处理器457进行数字多天线空间预编码，包括基于码本的预编码和基于非码本的预编码，和波束赋型处理，随 后发射处理器468将产生的空间流调制成多载波/单载波符号流，在多天线发射处理器457中经过模拟预编码/波束赋型操作后再经由发射器454提供到不同天线452。每一发射器454首先把多天线发射处理器457提供的基带符号流转化成射频符号流，再提供到天线452。
在从所述第一通信设备450到所述第二通信设备410的传输中，所述第二通信设备410处的功能类似于在从所述第二通信设备410到所述第一通信设备450的传输中所描述的所述第一通信设备450处的接收功能。每一接收器418通过其相应天线420接收射频信号，把接收到的射频信号转化成基带信号，并把基带信号提供到多天线接收处理器472和接收处理器470。接收处理器470和多天线接收处理器472共同实施L1层的功能。控制器/处理器475实施L2层功能。控制器/处理器475可与存储程序代码和数据的存储器476相关联。存储器476可称为计算机可读媒体。在从所述第一通信设备450到所述第二通信设备410的传输中，控制器/处理器475提供输送与逻辑信道之间的多路分用、包重组装、解密、标头解压缩、控制信号处理以恢复来自UE450的上层数据包。来自控制器/处理器475的上层数据包可被提供到核心网络。
作为一个实施例，所述第一通信设备450装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用，所述第一通信设备450装置至少：发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；以及在第一时间窗中监测第一类信息；在所述第一时间窗中所述第一类信息未被检测到，发送第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第一通信设备450装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用，所述第一通信设备450装置至少：发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；以及在第一时间窗中监测第一类信息；在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识，发送第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第一通信设备450包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；以及在第一时间窗中监测第一类信息；在所述第一时间窗中所述第一类信息未被检测到，发送第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第一通信设备450包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；以及在第一时间窗中监测第一类信息；在所述第一时间窗中检测到的所述第一类信息中仅包括所述 目标标识之外的标识，发送第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第二通信设备410装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用。所述第二通信设备410装置至少：监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；以及在第一时间窗中发送第一类信息，第一类信息中仅包括所述目标标识之外的标识；并监测第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第二通信设备410装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用。所述第二通信设备410装置至少：监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；以及放弃在第一时间窗中发送第一类信息；并监测第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第二通信设备410装置包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；以及在第一时间窗中发送第一类信息，第一类信息中仅包括所述目标标识之外的标识；并监测第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第二通信设备410装置包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；以及放弃在第一时间窗中发送第一类信息；并监测第二序列和第二无线信号；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第一通信设备450对应本申请中的第一节点。
作为一个实施例，所述第二通信设备410对应本申请中的第二节点。
作为一个实施例，所述第一通信设备450是一个UE。
作为一个实施例，所述第二通信设备410是一个基站。
作为一个实施例，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468，所述控制器/处理器459中的至少之一被用于发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；所述天线420，所述接收器418，所述多天线接收处理器472，所述接收处理器470，所述控制器/处理器475中的至少之一被用于监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识。
作为一个实施例，所述天线452，所述接收器454，所述多天线接收处理器458，所述接收处理器456中的至少之一被用于在第一时间窗中监测第一类信息。
作为一个实施例，所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416中的至少之一被用于在第一时间窗中发送第一类信息，第一类信息中仅包括所述目标标识之外的标识。
作为一个实施例，所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416中的至少之一被用于放弃在第一时间窗中发送第一类信息。
作为一个实施例，如果在所述第一时间窗中所述第一类信息未被检测到，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468，所述控制器/处理器459中的至少之一被用于发送第二序列和第二无线信号。
作为一个实施例，如果在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468，所述控制器/处理器459中的至少之一被用于发送第二序列和第二无线信号。
作为一个实施例，所述天线420，所述接收器418，所述多天线接收处理器472，所述接收处理器470，所述控制器/处理器475中的至少之一被用于监测第二序列和第二无线信号。
作为一个实施例，所述天线452，所述接收器454，所述多天线接收处理器458，所述接收处理器456中的至少之一被用于接收第一信令；所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416中的至少之一被用于发送第一信令。
实施例5
实施例5示例了一个第二序列和第二无线信号的流程图，如附图5所示。在附图5中，第一节点U1与第二节点U2之间通过空中接口进行通信。图中标注为F0的部分是可选的。
对于 第一节点U1，在步骤S10中接收第一信令；在步骤S11中发送第一序列和第一无线信号；在步骤S12中在第一时间窗中监测第一类信息；在步骤S13中发送第二序列和第二无线信号。
对于 第二节点U2，在步骤S20中发送第一信令；在步骤S21中监测第一序列和第一无线信号；在步骤S22中在第一时间窗中发送第一类信息；在步骤S23中监测第二序列和第二无线信号。
实施例5中，所述第一序列和所述第一无线信号中的至少之一携带目标标识；所述第一节点U1在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一；所述第一信令被用于确定K1个备选序列，所述K1是正整数；所述第一序列是所述K1个备选序列中的一个备选序列，且所述第二序列是所述K1个备选序列中的一个备选序列；所述第一节点U1在所述K1个备选序列中自行选择所述第一序列，所述第一节点U1在所述K1个备选序列中自行选择所述第二序列。
作为一个实施例，所述第一信令是物理层信令。
作为一个实施例，所述第一信令是高层信令。
作为一个实施例，所述第一信令是RRC信令。
作为一个实施例，所述第一序列采用第一功率值发送，所述第二序列采用第二功率值发送，所述第二功率值大于所述第一功率值；所述第二功率值与所述第一功率值的差是固定的，或者所述第二功率值与所述第一功率值的差是通过高层信令配置的。
作为该实施例的一个子实施例，所述第一功率值和所述第二功率值均不大于第一阈值。
作为该子实施例的一个附属实施例，所述第一阈值是TS 38.213中的P PRACH,f,c(i)。
作为该实施例的一个子实施例，所述第一功率值的单位是dBm(毫分贝)，或者所述第一功率值的单位是mW(毫瓦)。
作为该实施例的一个子实施例，所述第二功率值的单位是dBm，或者所述第二功率值的单位是mW。
作为该实施例的一个子实施例，所述第二功率值减去所述第一功率值的差等于第一偏移量，所述第一偏移量的单位是dB(分贝)。
作为该子实施例的一个附属实施例，所述第一偏移量等于TS 38.331中的powerRampingStep。
作为该子实施例的一个附属实施例，所述第一偏移量通过TS 38.331中的RACH-ConfigGeneric IE(Information Elements，信息单元)配置。
作为一个实施例，所述第一无线信号和所述第二无线信号采用相同的发送功率。
作为该实施例的一个子实施例，所述第一无线信号和所述第二无线信号均采用和所述第一序列相同的发送功率发送。
作为该实施例的一个子实施例，所述第一无线信号和所述第二无线信号均采用本申请中的所述第一功率值发送。
作为一个实施例，所述第一无线信号和所述第二无线信号占用相同的数量的RE。
作为一个实施例，所述第一序列和所述第二序列占用相同数量的RE。
作为一个实施例，所述第一比特块中的全部比特被用于生成所述第一无线信号，且所述第一比特块中的部分比特被用于生成所述第二无线信号。
作为一个实施例，所述第一无线信号采用第一MCS(Modulation and Coding Scheme，调制编码方式)，所述第二无线信号采用第二MCS，所述第一比特块按照所述第一MCS形成的调制符号数大于所述第一比特块按照所述第二MCS形成的调制符号数；所述第一无线信号和所述第二无线信号均占用M个RE，所述M是正整数；被所述第二无线信号占用的M个RE中未被所述第一比特块生成的调制符号所占用的RE被用于传输所述第二信息。
作为一个实施例，所述第二序列被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送。
作为该实施例的一个子实施例，所述第二序列被用于指示所述第二无线信号是针对所述第一无线信号的第二次发送。
作为该子实施例的一个附属实施例，所述第一节点针对所述第一无线信号共支持Q1次传输，所述Q1次传输中的第一次传输通过所述第一序列指示，所述Q1次传输中的第二次传输通过所述第二序列指示，所述Q1次传输中的第i次传输通过所述第i序列指示，所述i是大于1且不大于Q1的正整数；所述第一序列，所述第二序列和所述第i序列中的任意两个特征序列是正交的，且所述第一节点选取所述第一序列至第Q1序列的顺序是固定的。
作为一个实施例，所述第二无线信号包括目标参考信号，所述目标参考信号被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送。
作为该实施例的一个子实施例，所述目标参考信号的扰码被用于指示所述第二无线信号是针对所述第一无线信号的第二次发送。
作为该实施例的一个子实施例，生成所述目标参考信号的特征序列被用于指示所述第二 无线信号是针对所述第一无线信号的第二次发送。
作为该实施例的一个子实施例，所述第一节点针对所述第一无线信号共支持Q1次传输；所述Q1次传输的前两次传输分别对应所述第一无线信号和所述第二无线信号，所述Q1次传输中的第i次传输对应第i无线信号；所述第一无线信号包括第一参考信号，所述第二无线信号包括所述目标参考信号，所述第i无线信号包括第i参考信号；所述i是大于1且不大于Q1的正整数；所述第一参考信号，所述目标参考信号和所述第i参考信号中的任意两个参考信号的扰码是正交的；或者，所述第一参考信号，所述目标参考信号和所述第i参考信号中的任意两个参考信号的生成序列是正交的。
作为一个实施例，所述第二信息被用于指示所述第二无线信号是针对所述第一无线信号的第二次发送。
作为一个实施例，所述第二节点U2监测所述第一序列和所述第一无线信号，且没有正确检测出所述第一序列，且所述第二节点U2在所述第一序列所占用的时频资源中检测出所述第一序列之外的序列，所述第二节点U2发送所述第一类信息，且所述第一类信息中仅包括所述目标标识之外的标识，所述目标标识之外的所述标识与所述第一序列之外的所述序列对应。
作为该实施例的一个子实施例，所述没有正确检测出所述第一序列是指：所述第一序列由第一特征序列生成，所述第一节点基于相干检测未能确定出所述第一特征序列。
作为一个实施例，所述第二节点U2监测所述第一序列和所述第一无线信号，且没有正确检测出所述第一无线信号，且所述第二节点U2在所述第一无线信号所占用的时频资源中检测出所述第一无线信号之外的无线信号，所述第一无线信号之外的无线信号包括所述目标标识之外的标识；所述第二节点U2发送所述第一类信息，且所述第一类信息中仅包括所述目标标识之外的所述标识。
作为该实施例的一个子实施例，所述没有正确检测出所述第一无线信号是指：所述第一无线信号包括CRC序列，所述第二节点U2基于针对所述CRC序列的检测确定所述第一无线信号没有被正确译码。
作为该实施例的一个子实施例，所述没有正确检测出所述第一无线信号是指：所述第一无线信号包括CRC序列，所述第二节点U2在接收到所述第一无线信号后用接收到的所述第一无线信号的CRC序列部分对所述CRC序列的循环生成多项式去做模2除且余数不为0,所述第二节点U2认为所述第一无线信号未被正确译码。
实施例6
实施例6示例了一个第二序列和第二无线信号的流程图，如附图6所示。在附图6中，第一节点U3与第二节点U4之间通过空中接口进行通信。图中标注为F1的部分是可选的；在不冲突的情况下，实施例5中的实施例，子实施例和附属实施例均能够应用于实施例6。
对于 第一节点U3，在步骤S30中接收第一信令；在步骤S31中发送第一序列和第一无线信号；在步骤S32中在第一时间窗中监测第一类信息；在步骤S33中发送第二序列和第二无线信号。
对于 第二节点U4，在步骤S40中发送第一信令；在步骤S41中监测第一序列和第一无线信号；在步骤S42中放弃在第一时间窗中发送第一类信息；在步骤S43中监测第二序列和第二无线信号。
实施例6中，所述第一序列和所述第一无线信号中的至少之一携带目标标识；所述第一节点U3在所述第一时间窗中未检测到所述第一类信息；第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一；所述第一信令被用于确定K1个备选序列，所述K1是正整数；所述第一序列是所述K1个备选序列中的一个备选 序列，且所述第二序列是所述K1个备选序列中的一个备选序列；所述第一节点U3在所述K1个备选序列中自行选择所述第一序列，所述第一节点U3在所述K1个备选序列中自行选择所述第二序列。
作为一个实施例，所述第二节点U4监测所述第一序列和所述第一无线信号，且没有正确检测出所述第一序列，所述第二节点U4放弃发送所述第一类信息。
作为该实施例的一个子实施例，所述第二节点U4在所述第一序列所占用的时频资源中没有检测出所述第一序列和所述第一序列之外的其它序列。
作为一个实施例，所述第二节点U2监测所述第一序列和所述第一无线信号，且没有正确检测出所述第一无线信号，所述第二节点U4放弃发送所述第一类信息。
作为该实施例的一个子实施例，所述第二节点U4在所述第一无线信号所占用的时频资源中没有检测出所述第一无线信号和其它携带所述目标标识之外的标识的无线信号。
实施例7
实施例7示例了一个第一时间窗的示意图，如附图7所示。在附图7中，所述第一节点在图中所示的第一时间单元中发送所述第一序列和第一无线信号，随后所述第一节点在图中所示的所述第一时间窗中监测第一类信息；如果在所述第一时间窗中所述第一类信息未被检测到，或者如果在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识，所述第一节点在图中所示的第二时间单元中发送第二序列和第二无线信号；
作为一个实施例，所述第一时间窗占用连续的正整数个时隙。
作为一个实施例，所述第一时间单元占用一个时隙。
作为一个实施例，所述第二时间单元占用一个时隙。
作为一个实施例，所述第一时间窗在时域的持续时间是固定的，或者所述第一时间窗在时域的持续时间是通过高层信令配置的。
作为一个实施例，所述第一时间单元在时域的截止时刻与所述第一时间窗在时域的起始时刻之间的时间差是固定的。
作为一个实施例，所述第一时间单元在时域的截止时刻与所述第一时间窗在时域的起始时刻之间的时间差与所述第一无线信号所采用的子载波间隔有关。
作为一个实施例，所述第一时间单元在时域的截止时刻与所述第一时间窗在时域的起始时刻之间的时间差是通过高层信令配置的。
作为一个实施例，所述第一时间窗在时域的截止时刻与所述第二时间单元在时域的起始时刻之间的时间差是固定的。
作为一个实施例，所述第一时间窗在时域的截止时刻与所述第二时间单元在时域的起始时刻之间的时间差与所述第一无线信号所采用的子载波间隔有关。
作为一个实施例，所述第一时间窗在时域的截止时刻与所述第二时间单元在时域的起始时刻之间的时间差是通过高层信令配置的。
实施例8
实施例8示例了一个第一序列、第一无线信号、第二序列和第二无线信号的示意图，如附图8所示。在附图8中，所述第一序列和所述第一无线信号是FDM(Frequency Domain Multiplex，频分复用)的，且所述第二序列和所述第二无线信号是FDM的。
作为一个实施例，所述第一序列被用于指示所述第一无线信号所占用的频域资源的位置。
作为一个实施例，所述第二序列被用于指示所述第二无线信号所占用的频域资源的位置。
作为一个实施例，所述第一序列所占用的频域资源的位置一一对应所述第一无线信号所占用的频域资源的位置。
作为一个实施例，所述第二序列所占用的频域资源的位置一一对应所述第二无线信号所占用的频域资源的位置。
作为一个实施例，所述第一序列所占用的频域资源与所述第一无线信号所占用的频域资源在频域是连续的。
作为一个实施例，所述第二序列所占用的频域资源与所述第二无线信号所占用的频域资源在频域是连续的。
实施例9
实施例9示例了一个第一无线信号和第二无线信号的示意图，如附图9所示。在附图9中，所述第一无线信号和所述第二无线信号占用相同数量的RE，所述第二无线信号中包括第二信令，所述第二信息被用于确定所述第二无线信号是针对所述第一无线信号的第二次传输。
作为一个实施例，本申请中的所述第一比特块的全部比特被用于生成所述第一无线信号，且本申请中的所述第一比特块的部分比特被用于生成所述第二无线信号。
作为一个实施例，本申请中的所述第一比特块被用于生成M1个比特子块，所述M1个比特子块被全部用于生成所述第一无线信号，且所述M1个比特子块中的M2个比特子块被用于生成所述第二无线信号；所述M1是大于1的正整数，所述M2是小于所述M1的正整数。
作为上述两个实施例的一个子实施例，所述第二无线信号所占用的RE中未被所述第一比特块生成的调制符号所占用的RE被用于传输所述第二信息。
实施例10
实施例10示例了一个Q1个无线信号的示意图，如附图10所示。在附图10中，所述Q1个无线信号均是针对本申请中的所述第一无线信号的传输，其中所述Q1个无线信号中的第一个无线信号是本申请中的所述第一无线信号，所述Q1个无线信号中的第二个无线信号是本申请中的所述第二无线信号；所述Q1个无线信号按时间顺序分别是无线信号#1至无线信号#Q1；所述Q1是大于1的正整数。
作为一个实施例，所述Q1个无线信号分别包括Q1个参考信号；所述Q1个参考信号分别是参考信号#1至参考信号#Q1；给定参考信号是所述Q1个参考信号中的参考信号#i，所述i是大于0且不大于Q1的正整数，所述给定参考信号被用于指示所述i，所述i被用于指示包括所述给定参考信号的无线信号#i是所述Q1个无线信号中的第i个无线信号。
作为一个实施例，所述Q1个无线信号的发送功率保持不变。
作为一个实施例，所述Q1个无线信号分别对应Q1个特征序列，所述Q1个特征序列中的第一个特征序列是本申请中的所述第一序列，所述Q1个特征序列中的第二个特征序列是本申请中的所述第二序列，所述Q1个特征序列的发送功率按照时域的顺序依次增加。
作为一个实施例，所述Q1个无线信号分别对应Q1个特征序列，所述Q1个特征序列中的第一个特征序列是本申请中的所述第一序列，所述Q1个特征序列中的第二个特征序列是本申请中的所述第二序列，所述Q1个特征序列的发送功率按照时域的顺序依次增加。
作为一个实施例，所述Q1个无线信号分别对应Q1个特征序列，所述Q1个特征序列中的第一个特征序列是本申请中的所述第一序列，所述Q1个特征序列中的第二个特征序列是本申请中的所述第二序列，所述Q1个特征序列中的第i个特征序列的发送功率等于P+R*(i-1)，所述P的单位是dBm，所述R的单位是dB；所述P与所述第一节点和所述第二节点之间的路损(Pathloss)有关，所述R是固定的或者是通过高层信令配置的。
作为一个实施例，所述Q1是固定的，或者所述Q1是通过高层信令配置的。
实施例11
实施例11示例了一个第一节点中的处理装置的结构框图，如附图11所示。附图11中，第一节点1100的处理装置包括第一收发机1101，第一接收机1102和第一发射机1103。
第一收发机1101，发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
第一接收机1102，在第一时间窗中监测第一类信息；
第一发射机1103，如果在所述第一时间窗中所述第一类信息未被检测到，或者如果在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识，发送第二序列 和第二无线信号；
实施例11中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第一收发机1101接收第一信令；所述第一信令被用于确定K1个备选序列，所述K1是正整数；所述第一序列是所述K1个备选序列中的一个备选序列，且所述第二序列是所述K1个备选序列中的一个备选序列；所述第一节点在所述K1个备选序列中自行选择所述第一序列，所述第一节点在所述K1个备选序列中自行选择所述第二序列。
作为一个实施例，所述第一序列采用第一功率发送，所述第二序列采用第二功率发送，所述第二功率大于所述第一功率；所述第二功率与所述第一功率的差是固定的，或者所述第二功率与所述第一功率的差是通过高层信令配置的。
作为一个实施例，所述第一无线信号和所述第二无线信号采用相同的发送功率。
作为一个实施例，所述第一无线信号和所述第二无线信号占用相同数量的RE。
作为一个实施例，所述第二序列被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送；或者所述第二无线信号包括目标参考信号，所述目标参考信号被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送。
作为一个实施例，所述第一收发机1101包括实施例4中的天线452、接收器/发射机454、多天线接收处理器458、接收处理器456、发射处理器468、多天线发送处理器457、控制器/处理器459中的至少前6者。
作为一个实施例，所述第一接收机1102包括实施例4中的天线452、接收器454、多天线接收处理器458、接收处理器456、控制器/处理器459中的至少前4者。
作为一个实施例，所述第一发射机1103包括实施例4中的天线452、发射器454、多天线发射处理器457、发射处理器468、控制器/处理器459中的至少前4者。
实施例12
实施例12示例了一个第二节点中的处理装置的结构框图，如附图12所示。附图12中，第二节点1200的处理装置包括第二收发机1201、第二发射机1202和第二接收机1203。
第二收发机1201，监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
第二发射机1202，在第一时间窗中发送第一类信息，第一类信息中仅包括所述目标标识之外的标识；或者放弃在第一时间窗中发送第一类信息；
第二接收机1203，监测第二序列和第二无线信号；
实施例12中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
作为一个实施例，所述第二收发机1201发送第一信令；所述第一信令被用于确定K1个备选序列，所述K1是正整数；所述第一序列是所述K1个备选序列中的一个备选序列，且所述第二序列是所述K1个备选序列中的一个备选序列；所述第一序列的发送者在所述K1个备选序列中自行选择所述第一序列，且所述第一序列的发送者在所述K1个备选序列中自行选择所述第二序列。
作为一个实施例，所述第一序列采用第一功率发送，所述第二序列采用第二功率发送，所述第二功率大于所述第一功率；所述第二功率与所述第一功率的差是固定的，或 者所述第二功率与所述第一功率的差是通过高层信令配置的。
作为一个实施例，所述第一无线信号和所述第二无线信号采用相同的发送功率。
作为一个实施例，所述第一无线信号和所述第二无线信号占用相同数量的RE。
作为一个实施例，所述第二序列被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送；或者所述第二无线信号包括目标参考信号，所述目标参考信号被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送。
作为一个实施例，所述第二收发机1201包括实施例4中的天线420、发射器/接收器418、多天线发射处理器471、发射处理器416、多天线接收处理器472、接收处理器470、控制器/处理器475中的至少前6者。
作为一个实施例，所述第二发射机1202包括实施例4中的天线420、发射器418、多天线发射处理器471、发射处理器416、控制器/处理器475中的至少前4者。
作为一个实施例，所述第二接收机1203包括实施例4中的天线420、接收器418、多天线接收处理器472、接收处理器470、控制器/处理器475中的至少前4者。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可以通过程序来指令相关硬件完成，所述程序可以存储于计算机可读存储介质中，如只读存储器，硬盘或者光盘等。可选的，上述实施例的全部或部分步骤也可以使用一个或者多个集成电路来实现。相应的，上述实施例中的各模块单元，可以采用硬件形式实现，也可以由软件功能模块的形式实现，本申请不限于任何特定形式的软件和硬件的结合。本申请中的第一节点和第二节点包括但不限于手机，平板电脑，笔记本，上网卡，低功耗设备，eMTC设备，NB-IoT设备，车载通信设备，交通工具，车辆，RSU，飞行器，飞机，无人机，遥控飞机等无线通信设备。本申请中的基站包括但不限于宏蜂窝基站，微蜂窝基站，家庭基站，中继基站，eNB，gNB，传输接收节点TRP，GNSS，中继卫星，卫星基站，空中基站，RSU等无线通信设备。
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。凡在本申请的精神和原则之内，所做的任何修改，等同替换，改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种被用于无线通信的第一节点中的方法，其特征在于包括：
    发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
    在第一时间窗中监测第一类信息；
    如果在所述第一时间窗中所述第一类信息未被检测到，或者如果在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识，发送第二序列和第二无线信号；
    其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
  2. 一种被用于无线通信的第二节点中的方法，其特征在于包括：
    监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
    在第一时间窗中发送第一类信息，第一类信息中仅包括所述目标标识之外的标识；或者放弃在第一时间窗中发送第一类信息；
    监测第二序列和第二无线信号；
    其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
  3. 一种被用于无线通信的第一节点，其特征在于包括：
    第一收发机，发送第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
    第一接收机，在第一时间窗中监测第一类信息；
    第一发射机，如果在所述第一时间窗中所述第一类信息未被检测到，或者如果在所述第一时间窗中检测到的所述第一类信息中仅包括所述目标标识之外的标识，发送第二序列和第二无线信号；
    其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
  4. 根据权利要求3所述的第一节点，其特征在于，所述第一收发机接收第一信令；所述第一信令被用于确定K1个备选序列，所述K1是正整数；所述第一序列是所述K1个备选序列中的一个备选序列，且所述第二序列是所述K1个备选序列中的一个备选序列；所述第一节点在所述K1个备选序列中自行选择所述第一序列，所述第一节点在所述K1个备选序列中自行选择所述第二序列。
  5. 根据权利要求3或4所述的第一节点，其特征在于，所述第一序列采用第一功率值发送，所述第二序列采用第二功率值发送，所述第二功率值大于所述第一功率值；所述第二功率值与所述第一功率值的差是固定的，或者所述第二功率值与所述第一功率值的差是通过高层信令配置的。
  6. 根据权利要求3至5中任一权利要求所述的第一节点，其特征在于，所述第一无线信号和所述第二无线信号采用相同的发送功率。
  7. 根据权利要求3至6中任一权利要求所述的第一节点，其特征在于，所述第一无线信 号和所述第二无线信号占用相同数量的资源颗粒。
  8. 根据权利要求3至7中任一权利要求所述的第一节点，其特征在于，所述第二序列被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送；或者所述第二无线信号包括目标参考信号，所述目标参考信号被用于确定所述第二无线信号是针对所述第一无线信号的第二次发送。
  9. 一种被用于无线通信的第二节点，其特征在于包括：
    第二收发机，监测第一序列和第一无线信号，所述第一序列和所述第一无线信号中的至少之一携带目标标识；
    第二发射机，在第一时间窗中发送第一类信息，第一类信息中仅包括所述目标标识之外的标识；或者放弃在第一时间窗中发送第一类信息；
    第二接收机，监测第二序列和第二无线信号；
    其中，第一比特块被用于生成所述第一无线信号，所述第一比特块包括正整数个比特；所述第一比特块也被用于生成所述第二无线信号，所述第二无线信号携带第二信息；所述第二序列和所述第二无线信号中至少之一携带所述目标标识；所述第二信息被用于确定所述第一无线信号的配置信息，所述配置信息包括所占用的时频资源、所采用的调制编码方式、所采用的冗余版本中的至少之一。
  10. 根据权利要求9所述的第二节点，其特征在于，所述第一序列采用第一功率值发送，所述第二序列采用第二功率值发送，所述第二功率值大于所述第一功率值；所述第二功率值与所述第一功率值的差是固定的，或者所述第二功率值与所述第一功率值的差是通过高层信令配置的。
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