WO2020143046A1 - 由用户设备、基站执行的方法以及用户设备和基站 - Google Patents

由用户设备、基站执行的方法以及用户设备和基站 Download PDF

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Publication number
WO2020143046A1
WO2020143046A1 PCT/CN2019/071436 CN2019071436W WO2020143046A1 WO 2020143046 A1 WO2020143046 A1 WO 2020143046A1 CN 2019071436 W CN2019071436 W CN 2019071436W WO 2020143046 A1 WO2020143046 A1 WO 2020143046A1
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Prior art keywords
sequence
sequence table
basic sequence
basic
selection information
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PCT/CN2019/071436
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English (en)
French (fr)
Inventor
王闰昕
刘文佳
侯晓林
武田和晃
Original Assignee
株式会社Ntt都科摩
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Application filed by 株式会社Ntt都科摩 filed Critical 株式会社Ntt都科摩
Priority to PCT/CN2019/071436 priority Critical patent/WO2020143046A1/zh
Priority to CN201980088558.0A priority patent/CN113316963B/zh
Priority to US17/422,024 priority patent/US20220103314A1/en
Publication of WO2020143046A1 publication Critical patent/WO2020143046A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0031—Multiple signaling transmission
    • 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
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H04L5/0017—Time-frequency-code in which a distinct code is applied, as a temporal sequence, to each frequency
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the present application relates to the field of wireless communication, and specifically relates to user equipment and base stations that can be used in a wireless communication system, and methods performed by the user equipment and base stations.
  • a method for flexibly determining related operation sequences for UE operations is needed to reduce system overhead and improve the performance of the wireless communication system.
  • a user equipment including: an acquiring unit configured to acquire a basic sequence table, the basic sequence table including at least two sequences, and a receiving unit configured to receive an operation to be performed with the user equipment Related sequence selection information; a control unit configured to determine an operation sequence for the operation based on the basic sequence table and the sequence selection information.
  • control unit determines a subset of the basic sequence table related to the operation based on the basic sequence table and the sequence selection information; Centrally, the operation sequence for the operation is determined.
  • the operation includes one or more of preamble transmission, multiple access signature addition, demodulation reference signal transmission, and spread spectrum.
  • the sequence selection information includes: a start index for sequence selection, the number of groups that group the basic sequence table, the group index, the number of sequences in the subset of the basic sequence table, One or more of the expansion factors.
  • the receiving unit receives updated sequence selection information when reconfiguring the user equipment; the control unit determines based on the basic sequence table and the updated sequence selection information Updated sequence of operations.
  • the receiving unit receives the operation sequence occupancy information sent by the base station; the control unit determines the operation sequence for the operation according to the operation sequence occupancy information.
  • a base station including: a control unit configured to determine sequence selection information related to an operation to be performed by a user equipment; a transmission unit configured to transmit the sequence selection information so that all The user equipment determines an operation sequence for the operation according to a basic sequence table including at least two sequences and the sequence selection information.
  • the operation includes one or more of preamble transmission, multiple access signature addition, demodulation reference signal transmission, and spread spectrum.
  • the sequence selection information includes: a start index for sequence selection, the number of groups that group the basic sequence table, the group index, the number of sequences in the subset of the basic sequence table, One or more of the expansion factors.
  • the sending unit when reconfiguring the user equipment, sends updated sequence selection information, so that the user equipment can select the information according to the basic sequence table and the updated sequence selection information To determine the updated sequence of operations.
  • the base station further includes: an acquiring unit configured to acquire an operation sequence used by the user equipment for the operation; the sending unit sends operation sequence occupancy information according to the operation sequence to enable other The user equipment determines its own operation sequence for the operation according to the operation sequence occupation information.
  • a method performed by a user equipment comprising: a method performed by a user equipment, the method comprising: acquiring a basic sequence table, the basic sequence table including at least Two sequences; receiving sequence selection information related to the operation to be performed by the user equipment; and according to the basic sequence table and the sequence selection information, determining the operation sequence for the operation.
  • determining the operation sequence for the operation according to the basic sequence table and the sequence selection information includes: according to the basic sequence table and the sequence selection information, determining and A subset of the basic sequence table related to the operation; from the subset of the basic sequence table, an operation sequence for the operation is determined.
  • the operation includes one or more of preamble transmission, multiple access signature addition, demodulation reference signal transmission, and spread spectrum.
  • the sequence selection information includes: a start index for sequence selection, the number of groups that group the basic sequence table, the group index, the number of sequences in the subset of the basic sequence table, One or more of the expansion factors.
  • the method further comprises: receiving the updated sequence selection information when reconfiguring the user equipment; determining the updated sequence according to the basic sequence table and the updated sequence selection information Sequence of operations.
  • the method further includes: receiving operation sequence occupancy information sent by the base station; and according to the operation sequence occupancy information, determining an operation sequence for the operation.
  • a method performed by a base station comprising: determining sequence selection information related to an operation to be performed by a user equipment; transmitting the sequence selection information to enable the user equipment Based on the basic sequence table including at least two sequences and the sequence selection information, an operation sequence for the operation is determined.
  • the operation includes one or more of preamble transmission, multiple access signature addition, demodulation reference signal transmission, and spread spectrum.
  • the sequence selection information includes: a start index for sequence selection, the number of groups that group the basic sequence table, the group index, the number of sequences in the subset of the basic sequence table, One or more of the expansion factors.
  • the method further includes: when reconfiguring the user equipment, sending updated sequence selection information, so that the user equipment according to the basic sequence table and the updated sequence Select the information to determine the updated sequence of operations.
  • the method further includes: acquiring an operation sequence used by the user equipment for the operation; sending operation sequence occupancy information according to the operation sequence, so that other user equipment occupies the information according to the operation sequence To determine the sequence of operations for the operation.
  • a subset of the basic sequence table related to the operation can be determined according to the basic sequence table and sequence selection information instructed by the base station related to the operation to be performed by the user equipment. Therefore, the operation sequence selection range related to the operation can be flexibly determined for the same or different operations of the user equipment, the flexibility of the user equipment sequence selection is improved, the system overhead is reduced, and the performance of the wireless communication system is improved.
  • FIG. 1 shows a schematic diagram of a wireless communication system according to an embodiment of the present invention
  • FIG. 2 shows a flowchart of a method performed by a user equipment according to an embodiment of the present invention
  • FIG. 3 shows a schematic diagram of a basic sequence table according to an embodiment of the present invention
  • FIG. 7 shows an example of information interaction between a UE, a base station, and other UEs
  • FIG. 8 shows another example of information interaction between a UE, a base station, and other UEs
  • FIG. 9 shows a flowchart of a method performed by a base station according to an embodiment of the present invention.
  • FIG. 10 shows a structural block diagram of user equipment according to an embodiment of the present invention.
  • FIG. 11 shows a structural block diagram of a base station according to an embodiment of the present invention.
  • FIG. 12 is a diagram showing an example of a hardware structure of a user equipment and a base station according to an embodiment of the present invention.
  • the wireless communication system may include a base station 10 and a user equipment (UE) 20.
  • the UE 20 can communicate with the base station 10. It should be recognized that although one base station and one UE are shown in FIG. 1, this is only schematic, and the wireless communication system may include one or more base stations and one or more UEs.
  • the UE may determine the corresponding preamble sequence to send the preamble.
  • the UE may use a multiple access signature (Multiple Access signature, MA signature) sequence to add a multiple access signature to the symbol to be sent.
  • the UE may send a demodulation reference signal for demodulation of the uplink channel.
  • the UE may use different spreading factors to spread the symbols to be transmitted. In each of the above examples, the UE needs to separately determine the operation sequence corresponding to the operation, and adopt the determined operation sequence to perform various operations.
  • FIG. 2 shows a flowchart of a method 200 performed by user equipment according to an embodiment of the present invention.
  • step S201 a basic sequence table is obtained, and the basic sequence table includes at least two sequences.
  • the basic sequence table may be stored in advance on both sides of the UE side and the base station side, respectively.
  • the basic sequence table may be set in advance by relevant standards and stored on both sides of the UE and the base station.
  • the basic sequence table may also interact between the base station and the UE through signaling.
  • the base station may send the setting information of the related basic sequence table through high-level (such as MAC layer) signaling or DCI. Or selection information of multiple basic sequence lists to inform the UE of the basic sequence list currently used.
  • the basic sequence table may include a basic sequence index and a basic sequence corresponding to the basic sequence index, respectively.
  • FIG. 3 shows a schematic diagram of a basic sequence table according to an embodiment of the present invention.
  • the basic sequence table may include eight basic sequences with basic sequence indexes 0-7, respectively s0-s8.
  • the basic sequence table may be used by the UE to determine operation sequences required for one or more operations.
  • the representation method of the basic sequence table in FIG. 3 and the setting method of the one-to-one correspondence between the basic sequence index and the basic sequence are only examples. In practical applications, any basic sequence table setting method can be used, and the number of included basic sequences is not limited.
  • step S202 sequence selection information related to the operation to be performed by the user equipment is received.
  • the UE will receive the sequence selection information indicated by the base station, the sequence selection information being related to the operation to be performed by the UE.
  • the sequence selection information may enable the UE to select a subset of the basic sequence table related to the operation to be performed from the basic sequence table, and further determine an operation sequence for the operation from there.
  • the base station may indicate sequence selection information related to the operation to be performed by the UE through high-level signaling (such as Radio Resource Control (RRC) signaling); in another example, the base station may use, for example, downlink Control information (Downlink Control Information, DCI) indicates sequence selection information related to the operation to be performed by the UE.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the base station may simultaneously indicate the type of operation to be performed by the UE and sequence selection information corresponding to the operation, and the operation may be one or more.
  • the base station may indicate the type of operation to be performed by the UE and corresponding sequence selection information through an explicit method (such as one or more specific bits in DCI); for another example, the base station may also use an implicit method (such as through the sequence Specific location in the DCI where the selection information is located) indicates the type of operation to be performed by the UE and the corresponding sequence selection information, such as using the first location in the DCI to indicate the type of operation to add the MA signature and the corresponding MA sequence, while using the DCI
  • the second position indicates that the operation type is DMRS transmission and the corresponding DMRS.
  • the operation may include one or more of preamble transmission, multiple access signature addition, demodulation reference signal transmission, and spread spectrum.
  • the sequence selection information may include: a start index for sequence selection, the number of groups that group the basic sequence table, the group index, the number of sequences in the subset of the basic sequence table, One or more of the expansion factors.
  • step S203 based on the basic sequence table and the sequence selection information, an operation sequence for the operation is determined.
  • a subset of the basic sequence table related to the operation may be determined according to the basic sequence table and the sequence selection information; then, from the subset of the basic sequence table, the operation may be determined for the operation Sequence of operations.
  • the subset of the basic sequence table may be the basic sequence table itself or a part of the basic sequence table.
  • the subset of the basic sequence table for code sequence selection can be expressed as ⁇ s6, s7, s0, s1 ⁇ .
  • the UE may according to the basic sequence table and the number M of the basic sequences, and include a starting index i for sequence selection, a grouping number K for grouping the basic sequence tables, and children of the basic sequence table Sequence selection information of the number m of sequences in the set to determine a subset of the basic sequence table related to the operation, and further determine the operation sequence in the subset.
  • the value of the above basic sequence number M can be directly obtained according to the basic sequence table learned by the UE.
  • the grouping manner of the basic sequence table may be a preset grouping manner, or a specific grouping manner may be notified to the UE through the base station, which is not limited herein.
  • the subset of the basic sequence table for multiple access signature sequence selection can be expressed as ⁇ s2, s3, s0, s1 ⁇ .
  • the subset of the basic sequence table can be obtained from one or more groups of the basic sequence table; of course, the subset of the basic sequence table can also be exactly the same as the one or more groups of the basic sequence table.
  • the UE may according to the basic sequence table and the basic sequence number M, and include a starting index i for sequence selection, a group number K for grouping the basic sequence table, a group index L, and the basic Sequence selection information of the number m of sequences in the subset of the sequence table to determine the subset of the basic sequence table related to the operation, and further determine the operation sequence in the subset.
  • the value of the basic sequence number M can be directly obtained according to the basic sequence table known by the UE, and the grouping method of the basic sequence table may be a preset grouping method, or the base station may inform the UE of the specific grouping method , No restrictions here.
  • the subset of the basic sequence table for demodulation reference signal transmission can be expressed as ⁇ s6, s7, s4, s5 ⁇ .
  • a subset of the basic sequence table can be obtained from one or more groups of the basic sequence table; of course, the subset of the basic sequence table can also be exactly the same as the one or more groups of the basic sequence table .
  • the UE may determine a subset of the basic sequence table related to spreading based on the basic sequence table and sequence selection information including a spreading factor SF (spreading factor), which is used to indicate the spreading time
  • SF spreading factor
  • the subset of the basic sequence table may be represented as ⁇ s20, s21, s22, s23 ⁇ .
  • the subset of the basic sequence table may be represented as ⁇ s50, s51 ⁇ , or may be represented as ⁇ s52, s53 ⁇ .
  • FIG. 4 and FIG. 5 it can be known that when the basic sequence table is the same, different subsets of the basic sequence table can be determined according to different nesting manners of different expansion factors in the basic sequence table.
  • the length of the extended sequence may also vary according to different expansion factors.
  • the UE when the transmission type or transmission scenario changes, or the number of UEs changes, the UE may be reconfigured and performed on the subset of the basic sequence table where the UE determines to be located and its operation sequence Update. Specifically, when reconfiguring the user equipment, the UE may receive the updated sequence selection information sent by the base station, and determine the updated operation sequence according to the basic sequence table and the updated sequence selection information. Alternatively, a subset of the updated basic sequence table may be determined first based on the basic sequence table and the updated sequence selection information, and then the updated operation sequence may be determined therefrom.
  • the base station can also indicate the updated sequence selection information through higher layer signaling (such as Radio Resource Control (RRC) signaling) or through downlink control information (Downlink Control Information, DCI).
  • the sequence selection information may still include: a starting index for sequence selection, the number of groups that group the basic sequence table, the grouping index, the number of sequences in the subset of the basic sequence table, one of the expansion factors or Multiple.
  • the updated sequence selection information may be the updated value of one or more of the above parameters.
  • the updated sequence selection information may update the starting index i for sequence selection to i+offset by adding an offset value offset, and/or update the sequence number m in the subset of the basic sequence table to m+ offset.
  • the updated sequence selection information may also modify the group number K or group index L of the basic sequence table into K+1 or L+2, respectively.
  • the above update method for sequence selection information is only an example, and in actual application, any update method for sequence selection information may be adopted, which is not limited herein.
  • the UE may select information according to the basic sequence table and the sequence In the determined subset, one of the sequences is arbitrarily selected as the operation sequence for the operation.
  • the UE may also first receive operation sequence occupancy information related to resources occupied by other UEs (such as using operation sequence representations) sent by the base station, and occupy according to the operation sequence Information to determine the sequence of operations used for the operation.
  • the operation sequence occupancy information may be included in the sequence selection information and sent together, or may be sent separately.
  • the operation sequence occupation information may be a part of the sequence selection information, or may be independent of the sequence selection information.
  • the base station can obtain the operation sequence used by other UEs through the uplink data sent by other UEs through a certain operation it receives, and obtain the corresponding operation sequence occupancy information to inform this UE. For example, when the subset of the basic sequence table determined by the UE is ⁇ s2, s3, s0, s1 ⁇ , and the operation sequence occupation information of other UEs includes ⁇ s2 ⁇ , this UE can be enabled in ⁇ s3, s0, s1 ⁇ Select the sequence of operations for the operation.
  • FIG. 7 shows an example of information interaction between a UE, a base station, and other UEs.
  • the base station can simultaneously send sequence selection information indicating a certain operation to the UE and other UEs.
  • the UE and other UEs can respectively according to the basic sequence table and sequence selection information Separately determine the subset of the basic sequence table, and further determine the respective operation sequence for this operation.
  • the base station can send sequence selection information within a specific time range before this operation is performed, to ensure that each UE can obtain sequence selection information before performing this operation, and further determine the corresponding operation sequence.
  • the UE and other UEs will perform corresponding operations and send uplink data.
  • the sequence selection information may be sent periodically or aperiodically.
  • the base station may send the sequence selection information together with other configuration information (such as modulation and coding scheme (Modulation and Coding Scheme, MCS)) to save the signaling resources of the system.
  • MCS Modulation and Coding Scheme
  • the base station may send the sequence selection information by using GC-PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) or other DCI in a common search space (common search space), so that each UE The sequence selection information can be detected without the need to instruct each UE individually.
  • GC-PDCCH Physical Downlink Control Channel
  • common search space common search space
  • FIG. 8 shows another example of information interaction between the UE and the base station and other UEs.
  • one or more of the UEs can first use the operation sequence corresponding to a certain available resource to operate, and send uplink data to the base station, and then the base station can receive the uplink data related to the operation through it , To obtain the operation sequence occupancy information corresponding to the one or more UEs, and send sequence selection information and/or operation sequence occupancy information.
  • the base station sends the operation sequence occupation information
  • other UEs can be prevented from using the occupied operation sequence to operate, so as to avoid resource conflicts under Non-Orthogonal Multiple Access (Non-Orthogonal Multiple Access, NOMA).
  • NOMA Non-Orthogonal Multiple Access
  • the operation sequence occupancy information may be included in the sequence selection information and may be sent separately.
  • the base station can also send sequence selection information and/or operation sequence occupancy information within a specific time range before this operation is performed, to ensure that each UE can obtain the required information before performing this operation, and further determine the corresponding Sequence of operations.
  • the sequence selection information and/or operation sequence occupation information may be sent periodically or aperiodically.
  • the base station may send the sequence selection information and/or operation sequence occupancy information together with other configuration information (such as modulation and coding strategy (Modulation and Coding Scheme, MCS)) to save system signaling resources.
  • MCS Modulation and Coding Scheme
  • the base station may send the sequence selection information and/or operation sequence occupancy by using GC-PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) or other DCI in a common search space (common search space) Information so that each UE can detect it without having to instruct each UE individually.
  • GC-PDCCH Physical Downlink Control Channel, Physical Downlink Control Channel
  • common search space common search space
  • the base station When the base station sends the sequence selection information and/or operation sequence occupancy information through DCI, it may be sent in an existing DCI format, or may be sent in a new DCI format.
  • the base station can use one or more existing DCI to send: through DCI in GC-PCDDH 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3; in the public search space (DCI 0_0, DCI 0_1)
  • Use different wireless network temporary identification Radio Network Tempory Identity, RNTI
  • reserved bits such as index 29-31 of table 1/3 in MCS, index 28-31 of other MCS tables
  • Send or use the "uplink pilot reference signal (SoundingReferenceSignal, SRS) resource indicator" field, "precoding information and layer number” field, "antenna port” field and other ways to send.
  • SoundingReferenceSignal, SRS SoundingReferenceSignal, SRS
  • the base station can also transmit using the new DCI format of 4-9 bits.
  • the base station can use various value ranges to indicate parameters such as the start index of the demodulation reference signal, the number of packets, or the start index of the multiple access signature sequence, the number of packets, and other parameters.
  • the starting index of the demodulation reference signal can be defined as 0-15, and the number of packets can be defined as 0-3; or the starting index of the multiple access signature sequence can be defined as 0-31, the number of packets.
  • the value is defined as 0-7.
  • the above definitions of the DCI format and related parameter value ranges are only examples. In practical applications, any DCI format and value method can be used, and no limitation is made here.
  • a subset of the basic sequence table related to the operation can be determined according to the basic sequence table and sequence selection information indicated by the base station and related to the operation to be performed by the user equipment. Therefore, there is no need to separately set a sequence table for each operation, and the same or different operations for the user equipment can be used to flexibly determine the operation sequence, which increases the flexibility of the user equipment sequence selection, reduces the system overhead, and improves the wireless communication system Performance.
  • resource conflicts under NOMA for example, can be avoided as much as possible, and the effectiveness of information transmission can be improved.
  • FIG 9 shows a flowchart of a method 900 performed by a base station according to an embodiment of the present invention.
  • step S901 sequence selection information related to the operation to be performed by the user equipment is determined.
  • the sequence selection information is used by the UE to determine an operation sequence for the operation from the basic sequence table. Specifically, the UE may first determine a subset of the basic sequence table related to the operation according to the basic sequence table and the sequence selection information; then, from the subset of the basic sequence table, determine The sequence of operations for the operation.
  • the basic sequence table may be pre-stored on both the UE side and the base station side, respectively.
  • the basic sequence table may be set in advance by relevant standards and stored on both sides of the UE and the base station.
  • the basic sequence table may also interact between the base station and the UE through signaling.
  • the base station may send the setting information of the related basic sequence table through high-level (such as MAC layer) signaling or DCI. Or selection information of multiple basic sequence lists to inform the UE of the basic sequence list currently used.
  • the basic sequence table may include a basic sequence index and a basic sequence corresponding to the basic sequence index, respectively.
  • FIG. 3 shows a schematic diagram of a basic sequence table according to an embodiment of the present invention.
  • the basic sequence table may include eight basic sequences with basic sequence indexes 0-7, respectively s0-s8.
  • the basic sequence table may be used by the UE to determine operation sequences required for one or more operations.
  • the representation method of the basic sequence table in FIG. 3 and the setting method of the one-to-one correspondence between the basic sequence index and the basic sequence are only examples. In practical applications, any basic sequence table setting method can be used, and the number of included basic sequences is not limited.
  • the operation to be performed by the user equipment may include one or more of preamble transmission, multiple access signature addition, demodulation reference signal transmission, and spread spectrum.
  • the sequence selection information may include: a start index for sequence selection, the number of groups that group the basic sequence table, the group index, the number of sequences in the subset of the basic sequence table, One or more of the expansion factors.
  • step S902 the sequence selection information is sent, so that the user equipment determines an operation sequence for the operation according to a basic sequence table including at least two sequences and the sequence selection information.
  • the base station may indicate sequence selection information related to the operation to be performed by the UE through high-level signaling (such as Radio Resource Control (RRC) signaling); in another example, the base station may use, for example, downlink Control information (Downlink Control Information, DCI) indicates sequence selection information related to the operation to be performed by the UE.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the base station may simultaneously indicate the type of operation to be performed by the UE and sequence selection information corresponding to the operation, and the operation may be one or more.
  • the base station may indicate the type of operation to be performed by the UE and corresponding sequence selection information through an explicit method (such as one or more specific bits in DCI); for another example, the base station may also use an implicit method (such as through the sequence Specific location in the DCI where the selection information is located) indicates the type of operation to be performed by the UE and the corresponding sequence selection information, such as using the first location in the DCI to indicate the type of operation to add the MA signature and the corresponding MA sequence, while using the DCI
  • the second position indicates that the operation type is DMRS transmission and the corresponding DMRS.
  • the UE may first determine a subset of the basic sequence table related to the operation according to the basic sequence table and the sequence selection information; In the subset of the basic sequence table, an operation sequence used for the operation is determined.
  • the subset of the basic sequence table may be the basic sequence table itself or a part of the basic sequence table.
  • the subset of the basic sequence table for code sequence selection can be expressed as ⁇ s6, s7, s0, s1 ⁇ .
  • the UE may according to the basic sequence table and the number M of the basic sequences, and include a starting index i for sequence selection, a grouping number K for grouping the basic sequence tables, and children of the basic sequence table Sequence selection information of the number m of sequences in the set to determine a subset of the basic sequence table related to the operation, and further determine the operation sequence in the subset.
  • the value of the above basic sequence number M can be directly obtained according to the basic sequence table learned by the UE.
  • the grouping manner of the basic sequence table may be a preset grouping manner, or a specific grouping manner may be notified to the UE through the base station, which is not limited herein.
  • the subset of the basic sequence table for multiple access signature sequence selection can be expressed as ⁇ s2, s3, s0, s1 ⁇ .
  • the subset of the basic sequence table can be obtained from one or more groups of the basic sequence table; of course, the subset of the basic sequence table can also be exactly the same as the one or more groups of the basic sequence table.
  • the UE may according to the basic sequence table and the basic sequence number M, and include a starting index i for sequence selection, a group number K for grouping the basic sequence table, a group index L, and the basic Sequence selection information of the number m of sequences in the subset of the sequence table to determine the subset of the basic sequence table related to the operation, and further determine the operation sequence in the subset.
  • the value of the basic sequence number M can be directly obtained according to the basic sequence table known by the UE, and the grouping method of the basic sequence table may be a preset grouping method, or the base station may inform the UE of the specific grouping method , No restrictions here.
  • the subset of the basic sequence table for demodulation reference signal transmission can be expressed as ⁇ s6, s7, s4, s5 ⁇ .
  • a subset of the basic sequence table can be obtained from one or more groups of the basic sequence table; of course, the subset of the basic sequence table can also be exactly the same as the one or more groups of the basic sequence table .
  • the UE may determine a subset of the basic sequence table related to spreading based on the basic sequence table and sequence selection information including a spreading factor SF (spreading factor), which is used to indicate the spreading time
  • SF spreading factor
  • the subset of the basic sequence table may be represented as ⁇ s20, s21, s22, s23 ⁇ .
  • the subset of the basic sequence table may be represented as ⁇ s50, s51 ⁇ , or may be represented as ⁇ s52, s53 ⁇ .
  • FIG. 4 and FIG. 5 it can be known that when the basic sequence table is the same, different subsets of the basic sequence table can be determined according to different nesting manners of different expansion factors in the basic sequence table.
  • the length of the extended sequence may also vary according to the different expansion factors.
  • the base station may reconfigure the UE and target the subset of the basic sequence table where the UE is located and its operation sequence To update. Specifically, when reconfiguring the user equipment, the base station may send updated sequence selection information, and cause the UE to determine an updated operation sequence according to the basic sequence table and the updated sequence selection information. Alternatively, the UE may first determine a subset of the updated basic sequence table according to the basic sequence table and the updated sequence selection information, and then determine an updated operation sequence therefrom.
  • the base station can also indicate the updated sequence selection information through higher layer signaling (such as Radio Resource Control (RRC) signaling) or through downlink control information (Downlink Control Information, DCI).
  • the sequence selection information may still include: a starting index for sequence selection, the number of groups that group the basic sequence table, the grouping index, the number of sequences in the subset of the basic sequence table, one of the expansion factors or Multiple.
  • the updated sequence selection information may be the updated value of one or more of the above parameters.
  • the updated sequence selection information may update the starting index i for sequence selection to i+offset by adding an offset value offset, and/or update the sequence number m in the subset of the basic sequence table to m+ offset.
  • the updated sequence selection information may also modify the group number K or group index L of the basic sequence table into K+1 or L+2, respectively.
  • the above update method for sequence selection information is only an example, and in actual application, any update method for sequence selection information may be adopted, which is not limited herein.
  • the operation sequence occupation information may be a part of the sequence selection information, or may be independent of the sequence selection information.
  • the base station can obtain the operation sequence used by other UEs through the uplink data sent by other UEs through a certain operation it receives, and obtain the corresponding operation sequence occupancy information to inform this UE. For example, when the subset of the basic sequence table determined by the UE is ⁇ s2, s3, s0, s1 ⁇ , and the operation sequence occupation information of other UEs includes ⁇ s2 ⁇ , this UE can be enabled in ⁇ s3, s0, s1 ⁇ Select the sequence of operations for the operation.
  • FIG. 7 shows an example of information interaction between a UE, a base station, and other UEs.
  • the base station can simultaneously send sequence selection information indicating a certain operation to the UE and other UEs.
  • the UE and other UEs can respectively according to the basic sequence table and sequence selection information Separately determine the subset of the basic sequence table, and further determine the respective operation sequence for this operation.
  • the base station may send sequence selection information within a specific time range before this operation is performed, to ensure that each UE can obtain sequence selection information before performing this operation, and further determine the corresponding operation sequence.
  • the UE and other UEs will perform corresponding operations and send uplink data.
  • the sequence selection information may be sent periodically or aperiodically.
  • the base station may send the sequence selection information together with other configuration information (such as modulation and coding scheme (Modulation and Coding Scheme, MCS)) to save the signaling resources of the system.
  • MCS Modulation and Coding Scheme
  • the base station may send the sequence selection information by using GC-PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) or other DCI in a common search space (common search space), so that each UE The sequence selection information can be detected without the need to instruct each UE individually.
  • GC-PDCCH Physical Downlink Control Channel
  • common search space common search space
  • FIG. 8 shows another example of information interaction between the UE and the base station and other UEs.
  • one or more of the UEs can first use the operation sequence corresponding to a certain available resource to operate, and send uplink data to the base station, and then the base station can receive the uplink data related to the operation through it , To obtain the operation sequence occupancy information corresponding to the one or more UEs, and send sequence selection information and/or operation sequence occupancy information.
  • the base station sends the operation sequence occupation information
  • other UEs can be prevented from using the occupied operation sequence to operate, so as to avoid resource conflicts under Non-Orthogonal Multiple Access (Non-Orthogonal Multiple Access, NOMA).
  • NOMA Non-Orthogonal Multiple Access
  • the operation sequence occupancy information may be included in the sequence selection information and may be sent separately.
  • the base station can also send sequence selection information and/or operation sequence occupancy information within a specific time range before this operation is performed, to ensure that each UE can obtain the required information before performing this operation, and further determine the corresponding Sequence of operations.
  • the sequence selection information and/or operation sequence occupation information may be sent periodically or aperiodically.
  • the base station may send the sequence selection information and/or operation sequence occupancy information together with other configuration information (such as modulation and coding strategy (Modulation and Coding Scheme, MCS)) to save system signaling resources.
  • MCS Modulation and Coding Scheme
  • the base station may send the sequence selection information and/or operation sequence occupancy by using GC-PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) or other DCI in a common search space (common search space) Information so that each UE can detect it without having to instruct each UE individually.
  • GC-PDCCH Physical Downlink Control Channel, Physical Downlink Control Channel
  • common search space common search space
  • the base station When the base station sends the sequence selection information and/or operation sequence occupancy information through DCI, it may be sent in an existing DCI format, or may be sent in a new DCI format.
  • the base station can use one or more existing DCI to send: through DCI in GC-PCDDH 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3; in the public search space (DCI 0_0, DCI 0_1)
  • Use different wireless network temporary identification Radio Network Tempory Identity, RNTI
  • reserved bits such as index 29-31 of table 1/3 in MCS, index 28-31 of other MCS tables
  • Send or use the "uplink pilot reference signal (SoundingReferenceSignal, SRS) resource indicator" field, "precoding information and layer number” field, "antenna port” field and other ways to send.
  • SoundingReferenceSignal, SRS SoundingReferenceSignal, SRS
  • the base station can also transmit using the new DCI format of 4-9 bits.
  • the base station can use various value ranges to indicate parameters such as the start index of the demodulation reference signal, the number of packets, or the start index of the multiple access signature sequence, the number of packets, and other parameters.
  • the starting index of the demodulation reference signal can be defined as 0-15, and the number of packets can be defined as 0-3; or the starting index of the multiple access signature sequence can be defined as 0-31, the number of packets.
  • the value is defined as 0-7.
  • the above definitions of the DCI format and related parameter value ranges are only examples. In practical applications, any DCI format and value method can be used, and no limitation is made here.
  • the base station operated by the above method of the present invention can enable the user equipment to determine the subset of the basic sequence table related to the operation according to the basic sequence table and sequence selection information related to the operation to be performed by the user equipment. Therefore, there is no need to provide a sequence table for each operation, and the operation sequence can be flexibly determined for the same or different operations of the user equipment, which increases the flexibility of the user equipment sequence selection, reduces the system overhead, and improves the wireless communication system. performance.
  • resource conflicts under NOMA for example, can be avoided as much as possible, and the effectiveness of information transmission can be improved.
  • the user equipment may execute the method performed by the user equipment. Since the operation of the user equipment is basically the same as the steps of the method described above, it is only briefly described here, and repeated description of the same content is omitted.
  • the user equipment 1000 includes an acquiring unit 1010, a receiving unit 1020, and a control unit 1030. It should be recognized that FIG. 10 only shows components related to the embodiment of the present application, and omits other components, but this is only schematic, and the user equipment 1000 may include other components as needed.
  • the obtaining unit 1010 obtains a basic sequence table, which includes at least two sequences.
  • the receiving unit 1020 receives sequence selection information related to the operation to be performed by the user equipment.
  • the receiving unit 1020 will receive the sequence selection information indicated by the base station, the sequence selection information being related to the operation to be performed by the UE.
  • the sequence selection information may cause the UE to select a subset of the basic sequence table related to the operation to be performed from the basic sequence table, and further determine an operation sequence for the operation from there.
  • the base station may indicate sequence selection information related to the operation to be performed by the UE through high-level signaling (such as Radio Resource Control (RRC) signaling); in another example, the base station may use, for example, downlink Control information (Downlink Control Information, DCI) indicates sequence selection information related to the operation to be performed by the UE.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the base station may simultaneously indicate the type of operation to be performed by the UE and sequence selection information corresponding to the operation, and the operation may be one or more.
  • the base station may indicate the type of operation to be performed by the UE and corresponding sequence selection information through an explicit method (such as one or more specific bits in DCI); for another example, the base station may also use an implicit method (such as through the sequence Specific location in the DCI where the selection information is located) indicates the type of operation to be performed by the UE and the corresponding sequence selection information, such as using the first location in the DCI to indicate the type of operation to add the MA signature and the corresponding MA sequence, while using the DCI
  • the second position indicates that the operation type is DMRS transmission and the corresponding DMRS.
  • the operation may include one or more of preamble transmission, multiple access signature addition, demodulation reference signal transmission, and spread spectrum.
  • the sequence selection information may include: a start index for sequence selection, the number of groups that group the basic sequence table, the group index, the number of sequences in the subset of the basic sequence table, One or more of the expansion factors.
  • the control unit 1030 determines an operation sequence for the operation based on the basic sequence table and the sequence selection information.
  • control unit 1030 may first determine a subset of the basic sequence table related to the operation based on the basic sequence table and the sequence selection information; then, from the subset of the basic sequence table, determine The sequence of operations for the operation.
  • the subset of the basic sequence table may be the basic sequence table itself or a part of the basic sequence table.
  • the subset of the basic sequence table for code sequence selection can be expressed as ⁇ s6, s7, s0, s1 ⁇ .
  • control unit 1030 may be based on the basic sequence table and the basic sequence number M, and includes a starting index i for sequence selection, a grouping number K that groups the basic sequence table, and the basic sequence table Sequence selection information of the number m of sequences in the subset of to determine the subset of the basic sequence table related to the operation, and further determine the operation sequence in the subset.
  • the value of the above basic sequence number M can be directly obtained according to the basic sequence table learned by the UE.
  • the grouping manner of the basic sequence table may be a preset grouping manner, or a specific grouping manner may be notified to the UE through the base station, which is not limited herein.
  • control unit 1030 may be based on the basic sequence table and the number M of the basic sequences, and includes a starting index i for sequence selection, a grouping number K that groups the basic sequence table, a grouping index L, and all Sequence selection information of the number m of sequences in the subset of the basic sequence table to determine the subset of the basic sequence table related to the operation, and further determine the operation sequence in the subset.
  • the value of the basic sequence number M can be directly obtained according to the basic sequence table known by the UE, and the grouping method of the basic sequence table may be a preset grouping method, or the base station may inform the UE of the specific grouping method , No restrictions here.
  • the subset of the basic sequence table for demodulation reference signal transmission can be expressed as ⁇ s6, s7, s4, s5 ⁇ .
  • a subset of the basic sequence table can be obtained from one or more groups of the basic sequence table; of course, the subset of the basic sequence table can also be exactly the same as the one or more groups of the basic sequence table .
  • control unit 1030 may determine a subset of the basic sequence table related to spreading based on the basic sequence table and sequence selection information including spreading factor SF (spreading factor), to indicate the spread The spreading sequence used in frequency.
  • the subset of the basic sequence table may be represented as ⁇ s20, s21, s22, s23 ⁇ .
  • the subset of the basic sequence table may be represented as ⁇ s50, s51 ⁇ , or may be represented as ⁇ s52, s53 ⁇ .
  • FIG. 4 and FIG. 5 it can be known that when the basic sequence table is the same, different subsets of the basic sequence table can be determined according to different nesting manners of different expansion factors in the basic sequence table.
  • the length of the extended sequence may also vary according to different expansion factors.
  • control unit 1030 determining the subset of the basic sequence table based on the basic sequence table and the sequence selection information are described above.
  • the UE may be reconfigured and performed on the subset of the basic sequence table where the UE determines to be located and its operation sequence Update.
  • the receiving unit 1020 may receive the updated sequence selection information sent by the base station, and the control unit 1030 determines the updated operation sequence according to the basic sequence table and the updated sequence selection information .
  • control unit 1030 may first determine a subset of the updated basic sequence table based on the basic sequence table and the updated sequence selection information, and then determine an updated operation sequence therefrom.
  • the base station can also indicate the updated sequence selection information through higher layer signaling (such as Radio Resource Control (RRC) signaling) or through downlink control information (Downlink Control Information, DCI).
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the sequence selection information may still include: a starting index for sequence selection, the number of groups that group the basic sequence table, the grouping index, the number of sequences in the subset of the basic sequence table, one of the expansion factors or Multiple.
  • the updated sequence selection information may be the updated value of one or more of the above parameters.
  • the updated sequence selection information may update the starting index i for sequence selection to i+offset by adding an offset value offset, and/or update the sequence number m in the subset of the basic sequence table to m+ offset.
  • the updated sequence selection information may also modify the group number K or group index L of the basic sequence table into K+1 or L+2, respectively.
  • the above update method for sequence selection information is only an example, and in actual application, any update method for sequence selection information may be adopted, which is not limited herein.
  • control unit 1030 determines the operation sequence to be used for the operation from the subset of the basic sequence table (or the updated subset of the basic sequence table), it may be based on the basic sequence table and the sequence In the subset determined by the selection information, one of the sequences is arbitrarily selected as the operation sequence for the operation.
  • the UE may also first receive operation sequence occupancy information related to resources occupied by other UEs (such as using operation sequence representations) sent by the base station through the receiving unit 1020, so that the control unit 1030 Determine an operation sequence for the operation according to the operation sequence occupation information.
  • the operation sequence occupancy information may be included in the sequence selection information and sent together, or may be sent separately.
  • the operation sequence occupation information may be a part of the sequence selection information, or may be independent of the sequence selection information.
  • the base station can obtain the operation sequence used by other UEs through the uplink data sent by other UEs through a certain operation it receives, and obtain the corresponding operation sequence occupancy information to inform this UE. For example, when the subset of the basic sequence table determined by the UE is ⁇ s2, s3, s0, s1 ⁇ , and the operation sequence occupation information of other UEs includes ⁇ s2 ⁇ , this UE can be enabled in ⁇ s3, s0, s1 ⁇ Select the sequence of operations for the operation.
  • FIG. 7 shows an example of information interaction between a UE, a base station, and other UEs.
  • the base station can simultaneously send sequence selection information indicating a certain operation to the UE and other UEs.
  • the UE and other UEs can respectively according to the basic sequence table and sequence selection information Separately determine the subset of the basic sequence table, and further determine the respective operation sequence for this operation.
  • the base station may send sequence selection information within a specific time range before this operation is performed, to ensure that each UE can obtain sequence selection information before performing this operation, and further determine the corresponding operation sequence.
  • the UE and other UEs will perform corresponding operations and send uplink data.
  • the sequence selection information may be sent periodically or aperiodically.
  • the base station may send the sequence selection information together with other configuration information (such as modulation and coding scheme (Modulation and Coding Scheme, MCS)) to save the signaling resources of the system.
  • MCS Modulation and Coding Scheme
  • the base station may send the sequence selection information by using GC-PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) or other DCI in a common search space (common search space), so that each UE The sequence selection information can be detected without the need to instruct each UE individually.
  • GC-PDCCH Physical Downlink Control Channel
  • common search space common search space
  • FIG. 8 shows another example of information interaction between the UE and the base station and other UEs.
  • one or more of the UEs can first use the operation sequence corresponding to a certain available resource to operate, and send uplink data to the base station, and then the base station can receive the uplink data related to the operation through it , To obtain operation sequence occupancy information corresponding to the one or more UEs, and send sequence selection information and/or operation sequence occupancy information.
  • the base station sends the operation sequence occupation information
  • other UEs can be prevented from using the occupied operation sequence to operate, so as to avoid resource conflicts under Non-Orthogonal Multiple Access (Non-Orthogonal Multiple Access, NOMA).
  • NOMA Non-Orthogonal Multiple Access
  • the operation sequence occupancy information may be included in the sequence selection information and may be sent separately.
  • the base station can also send sequence selection information and/or operation sequence occupancy information within a specific time range before this operation is performed, to ensure that each UE can obtain the required information before performing this operation, and further determine the corresponding Sequence of operations.
  • the sequence selection information and/or operation sequence occupation information may be sent periodically or aperiodically.
  • the base station may send the sequence selection information and/or operation sequence occupancy information together with other configuration information (such as Modulation and Coding Scheme (MCS)) to save system signaling resources.
  • MCS Modulation and Coding Scheme
  • the base station may send the sequence selection information and/or operation sequence occupancy by using GC-PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) or other DCI in a common search space (common search space) Information so that each UE can detect it without having to instruct each UE individually.
  • GC-PDCCH Physical Downlink Control Channel, Physical Downlink Control Channel
  • common search space common search space
  • the base station When the base station sends the sequence selection information and/or operation sequence occupancy information through DCI, it may be sent in an existing DCI format, or may be sent in a new DCI format.
  • the base station can use one or more existing DCI to send: through DCI in GC-PCDDH 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3; in the public search space (DCI 0_0, DCI 0_1)
  • Use different wireless network temporary identification Radio Network Tempory Identity, RNTI
  • reserved bits such as index 29-31 of table 1/3 in MCS, index 28-31 of other MCS tables
  • Send or use the "uplink pilot reference signal (SoundingReferenceSignal, SRS) resource indicator" field, "precoding information and layer number” field, "antenna port” field and other ways to send.
  • SoundingReferenceSignal, SRS SoundingReferenceSignal, SRS
  • the base station can also transmit using the new DCI format of 4-9 bits.
  • the base station can use various value ranges to indicate parameters such as the start index of the demodulation reference signal, the number of packets, or the start index of the multiple access signature sequence, the number of packets, and other parameters.
  • the starting index of the demodulation reference signal can be defined as 0-15, and the number of packets can be defined as 0-3; or the starting index of the multiple access signature sequence can be defined as 0-31, the number of packets.
  • the value is defined as 0-7.
  • the above definitions of the DCI format and related parameter value ranges are only examples. In practical applications, any DCI format and value method can be used, and no limitation is made here.
  • a subset of the basic sequence table related to the operation can be determined according to the basic sequence table and sequence selection information instructed by the base station related to the operation to be performed by the user equipment. Therefore, there is no need to separately set a sequence table for each operation, and the same or different operations for the user equipment can be used to flexibly determine the operation sequence, which increases the flexibility of the user equipment sequence selection, reduces the system overhead, and improves the wireless communication system Performance.
  • resource conflicts under NOMA for example, can be avoided as much as possible, and the effectiveness of information transmission can be improved.
  • the base station may perform the above method performed by the base station. Since the operation of the base station is basically the same as the steps of the method described above, it is only briefly described here, and repeated description of the same content is omitted.
  • the base station 1100 includes a control unit 1110 and a transmission unit 1120. It should be recognized that FIG. 11 only shows components related to the embodiment of the present application, and omits other components, but this is only schematic, and the base station 1100 may include other components as needed.
  • the control unit 1110 determines sequence selection information related to the operation to be performed by the user equipment.
  • the sequence selection information is used by the UE to determine an operation sequence for the operation from the basic sequence table. Specifically, the UE may first determine a subset of the basic sequence table related to the operation according to the basic sequence table and the sequence selection information; then, from the subset of the basic sequence table, determine The sequence of operations for the operation.
  • the basic sequence table may be stored in advance on both sides of the UE side and the base station side, respectively.
  • the basic sequence table may be set in advance by relevant standards and stored on both sides of the UE and the base station.
  • the basic sequence table may also interact between the base station and the UE through signaling.
  • the base station may send the setting information of the related basic sequence table through high-level (such as MAC layer) signaling or DCI. Or selection information of multiple basic sequence lists to inform the UE of the basic sequence list currently used.
  • the basic sequence table may include a basic sequence index and a basic sequence corresponding to the basic sequence index, respectively.
  • FIG. 3 shows a schematic diagram of a basic sequence table according to an embodiment of the present invention.
  • the basic sequence table may include eight basic sequences with basic sequence indexes 0-7, respectively s0-s8.
  • the basic sequence table may be used by the UE to determine operation sequences required for one or more operations.
  • the representation method of the basic sequence table in FIG. 3 and the setting method of the one-to-one correspondence between the basic sequence index and the basic sequence are only examples. In practical applications, any basic sequence table setting method can be used, and the number of included basic sequences is not limited.
  • the operation to be performed by the user equipment may include one or more of preamble transmission, multiple access signature addition, demodulation reference signal transmission, and spread spectrum.
  • the sequence selection information may include: a start index for sequence selection, the number of groups that group the basic sequence table, the group index, the number of sequences in the subset of the basic sequence table, One or more of the expansion factors.
  • the sending unit 1120 sends the sequence selection information, so that the user equipment determines an operation sequence for the operation according to a basic sequence table including at least two sequences and the sequence selection information.
  • the sending unit 1120 may indicate sequence selection information related to the operation to be performed by the UE through higher layer signaling (eg, Radio Resource Control (RRC) signaling); in another example, the sending unit 1120
  • the sequence selection information related to the operation to be performed by the UE may be indicated by, for example, downlink control information (Downlink Control Information, DCI).
  • DCI Downlink Control Information
  • the sending unit 1120 may simultaneously indicate the type of operation to be performed by the UE and sequence selection information corresponding to the operation, and the operation may be one or more.
  • the sending unit 1120 may indicate the type of operation to be performed by the UE and corresponding sequence selection information through an explicit method (such as one or more specific bits in DCI); for another example, the sending unit 1120 may also use an implicit method (such as Indicate the type of operation to be performed by the UE and the corresponding sequence selection information through a specific position in the DCI where the sequence selection information is located, such as using the first position in the DCI to indicate the type of operation to add the MA signature and the corresponding MA sequence, and The second position in DCI is used to indicate that the operation type is DMRS transmission and the corresponding DMRS.
  • an explicit method such as one or more specific bits in DCI
  • the sending unit 1120 may also use an implicit method (such as Indicate the type of operation to be performed by the UE and the corresponding sequence selection information through a specific position in the DCI where the sequence selection information is located, such as using the first position in the DCI to indicate the type of operation to add the MA signature and the corresponding MA sequence, and The second position in DCI
  • the UE may first determine a subset of the basic sequence table related to the operation according to the basic sequence table and the sequence selection information; In the subset of the basic sequence table, an operation sequence used for the operation is determined.
  • the subset of the basic sequence table may be the basic sequence table itself or a part of the basic sequence table.
  • the subset of the basic sequence table for code sequence selection can be expressed as ⁇ s6, s7, s0, s1 ⁇ .
  • the UE may according to the basic sequence table and the number M of the basic sequences, and include a starting index i for sequence selection, a grouping number K for grouping the basic sequence tables, and children of the basic sequence table Sequence selection information of the number m of sequences in the set to determine a subset of the basic sequence table related to the operation, and further determine the operation sequence in the subset.
  • the value of the above basic sequence number M can be directly obtained according to the basic sequence table learned by the UE.
  • the grouping manner of the basic sequence table may be a preset grouping manner, or a specific grouping manner may be notified to the UE through the base station, which is not limited herein.
  • the subset of the basic sequence table for multiple access signature sequence selection can be expressed as ⁇ s2, s3, s0, s1 ⁇ .
  • the subset of the basic sequence table can be obtained from one or more groups of the basic sequence table; of course, the subset of the basic sequence table can also be exactly the same as the one or more groups of the basic sequence table.
  • the UE may according to the basic sequence table and the basic sequence number M, and include a starting index i for sequence selection, a group number K for grouping the basic sequence table, a group index L, and the basic Sequence selection information of the number m of sequences in the subset of the sequence table to determine the subset of the basic sequence table related to the operation, and further determine the operation sequence in the subset.
  • the value of the basic sequence number M can be directly obtained according to the basic sequence table known by the UE, and the grouping method of the basic sequence table may be a preset grouping method, or the base station may inform the UE of the specific grouping method , No restrictions here.
  • the subset of the basic sequence table for demodulation reference signal transmission can be expressed as ⁇ s6, s7, s4, s5 ⁇ .
  • a subset of the basic sequence table can be obtained from one or more groups of the basic sequence table; of course, the subset of the basic sequence table can also be exactly the same as the one or more groups of the basic sequence table .
  • the UE may determine a subset of the basic sequence table related to spreading based on the basic sequence table and sequence selection information including a spreading factor SF (spreading factor), which is used to indicate the spreading time
  • SF spreading factor
  • the subset of the basic sequence table may be represented as ⁇ s20, s21, s22, s23 ⁇ .
  • the subset of the basic sequence table may be represented as ⁇ s50, s51 ⁇ , or may be represented as ⁇ s52, s53 ⁇ .
  • FIG. 4 and FIG. 5 it can be known that when the basic sequence table is the same, different subsets of the basic sequence table can be determined according to different nesting manners of different expansion factors in the basic sequence table.
  • the length of the extended sequence may also vary according to different expansion factors.
  • the base station may reconfigure the UE and target the subset of the basic sequence table where the UE is located and its operation sequence To update.
  • the sending unit 1120 may send updated sequence selection information, and cause the UE to determine an updated operation sequence according to the basic sequence table and the updated sequence selection information.
  • the UE may first determine a subset of the updated basic sequence table according to the basic sequence table and the updated sequence selection information, and then determine an updated operation sequence therefrom.
  • the sending unit 1120 may also indicate the updated sequence selection information through higher layer signaling (eg, Radio Resource Control (RRC) signaling) or through, eg, downlink control information (Downlink Control, Information, DCI).
  • the sequence selection information may still include: a starting index for sequence selection, the number of groups that group the basic sequence table, the grouping index, the number of sequences in the subset of the basic sequence table, one of the expansion factors or Multiple.
  • the updated sequence selection information may be the updated value of one or more of the above parameters.
  • the updated sequence selection information may update the starting index i for sequence selection to i+offset by adding an offset value offset, and/or update the sequence number m in the subset of the basic sequence table to m+ offset.
  • the updated sequence selection information may also modify the group number K or group index L of the basic sequence table into K+1 or L+2, respectively.
  • the above update method for sequence selection information is only an example, and in actual application, any update method for sequence selection information may be adopted, which is not limited herein.
  • the UE may select information according to the basic sequence table and the sequence In the determined subset, one of the sequences is arbitrarily selected as the operation sequence for the operation.
  • the UE may also first receive operation sequence occupancy information related to resources occupied by other UEs (such as using operation sequence representations) sent by the sending unit 1120 of the base station, and according to the The operation sequence occupation information determines the operation sequence used for the operation.
  • the operation sequence occupancy information may be included in the sequence selection information and sent together, or may be sent separately.
  • the operation sequence occupation information may be a part of the sequence selection information, or may be independent of the sequence selection information.
  • the base station can obtain the operation sequence used by other UEs through the uplink data sent by other UEs through a certain operation it receives, and obtain the corresponding operation sequence occupancy information to inform this UE. For example, when the subset of the basic sequence table determined by the UE is ⁇ s2, s3, s0, s1 ⁇ , and the operation sequence occupation information of other UEs includes ⁇ s2 ⁇ , this UE can be enabled in ⁇ s3, s0, s1 ⁇ Select the sequence of operations for the operation.
  • FIG. 7 shows an example of information interaction between a UE, a base station, and other UEs.
  • the base station can simultaneously send sequence selection information indicating a certain operation to the UE and other UEs.
  • the UE and other UEs can respectively according to the basic sequence table and sequence selection information Separately determine the subset of the basic sequence table, and further determine the respective operation sequence for this operation.
  • the base station may send sequence selection information within a specific time range before this operation is performed, to ensure that each UE can obtain sequence selection information before performing this operation, and further determine the corresponding operation sequence.
  • the UE and other UEs will perform corresponding operations and send uplink data.
  • the sequence selection information may be sent periodically or aperiodically.
  • the base station may send the sequence selection information together with other configuration information (such as modulation and coding scheme (Modulation and Coding Scheme, MCS)) to save the signaling resources of the system.
  • MCS Modulation and Coding Scheme
  • the base station may send the sequence selection information by using GC-PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) or other DCI in a common search space (common search space), so that each UE The sequence selection information can be detected without the need to instruct each UE individually.
  • GC-PDCCH Physical Downlink Control Channel
  • common search space common search space
  • FIG. 8 shows another example of information interaction between the UE and the base station and other UEs.
  • one or more of the UEs can first use the operation sequence corresponding to a certain available resource to operate, and send uplink data to the base station, and then the base station can receive the uplink data related to the operation through it , To obtain the operation sequence occupancy information corresponding to the one or more UEs, and send sequence selection information and/or operation sequence occupancy information.
  • the base station sends the operation sequence occupation information
  • other UEs can be prevented from using the occupied operation sequence to operate, so as to avoid resource conflicts under Non-Orthogonal Multiple Access (Non-Orthogonal Multiple Access, NOMA).
  • NOMA Non-Orthogonal Multiple Access
  • the operation sequence occupancy information may be included in the sequence selection information and may be sent separately.
  • the base station can also send sequence selection information and/or operation sequence occupancy information within a specific time range before this operation is performed, to ensure that each UE can obtain the required information before performing this operation, and further determine the corresponding Sequence of operations.
  • the sequence selection information and/or operation sequence occupation information may be sent periodically or aperiodically.
  • the base station may send the sequence selection information and/or operation sequence occupancy information together with other configuration information (such as modulation and coding strategy (Modulation and Coding Scheme, MCS)) to save system signaling resources.
  • MCS Modulation and Coding Scheme
  • the base station may send the sequence selection information and/or operation sequence occupancy by using GC-PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) or other DCI in a common search space (common search space) Information so that each UE can detect it without having to instruct each UE individually.
  • GC-PDCCH Physical Downlink Control Channel, Physical Downlink Control Channel
  • common search space common search space
  • the sending unit 1120 of the base station When the sending unit 1120 of the base station sends the sequence selection information and/or operation sequence occupancy information through DCI, it may be sent in an existing DCI format, or may be sent in a new DCI format.
  • the sending unit 1120 can send using one or more existing DCIs: send through DCI in GC-PCDDH 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3; in the public search space (DCI 0_0, DCI 0_1)
  • Use different wireless network temporary identification Radio Network Tempory Identity, RNTI
  • RNTI Radio Network Tempory Identity
  • reserved bits such as the index 29-31 of the table 1/3 in the MCS, and the index 28-31 of other MCS tables 31
  • Send or use the "uplink pilot reference signal (SoundingReferenceSignal, SRS) resource indicator" field, the "precoding information and layer number” field, the "antenna port” field, etc.
  • SRS uplink pilot reference signal
  • the sending unit 1120 may also use a new DCI format of 4-9 bits for sending.
  • the transmission unit 1120 may use various value ranges to indicate parameters such as the start index of the demodulation reference signal, the number of packets, or the start index of the multiple access signature sequence, the number of packets, and other parameters.
  • the starting index of the demodulation reference signal can be defined as 0-15, and the number of packets can be defined as 0-3; or the starting index of the multiple access signature sequence can be defined as 0-31, the number of packets.
  • the value is defined as 0-7.
  • the above definitions of the DCI format and related parameter value ranges are only examples. In practical applications, any DCI format and value method can be used, and no limitation is made here.
  • the user equipment can enable the user equipment to determine a subset of the basic sequence table related to the operation according to the basic sequence table and sequence selection information related to the operation to be performed by the user equipment. Therefore, there is no need to provide a sequence table for each operation, and the operation sequence can be flexibly determined for the same or different operations of the user equipment, which increases the flexibility of the user equipment sequence selection, reduces the system overhead, and improves the wireless communication system. performance.
  • resource conflicts under NOMA for example, can be avoided as much as possible, and the effectiveness of information transmission can be improved.
  • the transmission device and the reception device in one embodiment of the present invention can function as a computer that executes the processing of the wireless communication method of the present invention.
  • 12 is a diagram showing an example of the hardware configuration of a user equipment and a base station according to an embodiment of the present invention.
  • the user equipment 1000 and the base station 1100 described above may be configured as computer devices that physically include a processor 1210, a memory 1220, a memory 1230, a communication device 1240, an input device 1250, an output device 1260, a bus 1270, and the like.
  • the word “device” may be replaced with a circuit, a device, a unit, or the like.
  • the hardware structure of the user equipment 1000 and the base station 1100 may include one or more devices shown in the figure, or may not include some devices.
  • processor 1210 may be a plurality of processors.
  • processing may be executed by one processor, or may be executed simultaneously, sequentially, or by other methods by more than one processor.
  • processor 1210 may be installed by more than one chip.
  • the functions of the user equipment 1000 and the base station 1100 are realized, for example, by reading predetermined software (programs) into hardware such as the processor 1210 and the memory 1220 to cause the processor 1210 to perform calculations, and the communication device 1240 The communication performed is controlled, and the reading and/or writing of data in the memory 1220 and the memory 1230 is controlled.
  • predetermined software programs
  • the processor 1210 operates an operating system to control the entire computer, for example.
  • the processor 1210 may be constituted by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, and the like.
  • CPU central processing unit
  • the processor 1210 reads out programs (program codes), software modules, data, etc. from the memory 1230 and/or the communication device 1240 to the memory 1220, and performs various processes according to them.
  • programs program codes
  • software modules software modules
  • data etc.
  • the program a program that causes a computer to execute at least a part of the operations described in the above embodiments can be adopted.
  • the memory 1220 is a computer-readable recording medium. For example, it can be composed of read-only memory (ROM, ReadOnlyMemory), programmable read-only memory (EPROM, ErasableProgrammableROM), electrically programmable read-only memory (EEPROM, Electrically EPROM), and random access memory ( At least one of RAM, Random Access Memory), and other suitable storage media.
  • the memory 1220 may also be referred to as a register, cache, main memory (main storage device), or the like.
  • the memory 1220 can store executable programs (program codes), software modules, and the like for implementing the wireless communication method according to an embodiment of the present invention.
  • the memory 1230 is a computer-readable recording medium.
  • it can be a flexible floppy disk, a floppy (registered trademark) disk, a floppy disk, a magneto-optical disk (for example, a CD-ROM (Compact Disc ROM), etc.), a digital universal Optical discs, Blu-ray (registered trademark) optical discs), removable disks, hard drives, smart cards, flash memory devices (for example, cards, sticks, key drivers), magnetic strips, databases, servers At least one of other suitable storage media.
  • the memory 1230 may also be referred to as an auxiliary storage device.
  • the communication device 1240 is hardware (transmitting and receiving equipment) for performing communication between computers through a wired and/or wireless network, and is also called, for example, a network device, a network controller, a network card, and a communication module.
  • the communication device 1240 may include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like in order to realize, for example, Frequency Division Duplex (FDD) and/or Time Division Duplex (TDD).
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the input device 1250 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 1260 is an output device that performs output to the outside (for example, a display, a speaker, a light emitting diode (LED, LightEmittingDiode) lamp, etc.).
  • the input device 1250 and the output device 1260 may be an integrated structure (for example, a touch panel).
  • the devices such as the processor 1210 and the memory 1220 are connected by a bus 1270 for communicating information.
  • the bus 1270 may be composed of a single bus, or may be composed of different buses between devices.
  • the user equipment 1000 and the base station 1100 may include a microprocessor, a digital signal processor (DSP, DigitalSignalProcessor), an application specific integrated circuit (ASIC, Application Specific Integrated Circuit), a programmable logic device (PLD, ProgrammableLogicDevice), and a field programmable gate array (FPGA) , FieldProgrammableGateArray) and other hardware, part or all of each function block can be realized by this hardware.
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • the processor 1210 may be installed by at least one of these hardware.
  • the channel and/or symbol may be a signal (signaling).
  • the signal may also be a message.
  • the reference signal may also be simply referred to as RS (ReferenceSignal), and may also be referred to as a pilot (Pilot), a pilot signal, etc. according to the applicable standard.
  • a component carrier may also be called a cell, a frequency carrier, a carrier frequency, and so on.
  • the radio frame may be composed of one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) constituting the radio frame may also be called a subframe.
  • a subframe may be composed of one or more time slots in the time domain.
  • the subframe may be a fixed time length (for example, 1 ms) that does not depend on parameter configuration (numerology).
  • the time slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) symbols, single carrier frequency division multiple access (SC-FDMA, Single Carrier Frequency Division Multiple Access) symbols, etc.) in the time domain.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the time slot may also be a time unit configured based on parameters.
  • the time slot may also include multiple mini-slots. Each mini-slot may be composed of one or more symbols in the time domain.
  • the mini-slot may also be called a sub-slot.
  • Radio frames, subframes, time slots, mini-slots, and symbols all represent time units when transmitting signals. Radio frames, subframes, time slots, mini-slots, and symbols can also use other corresponding names.
  • one subframe may be referred to as Transmission Time Interval (TTI, TransmissionTimeInterval)
  • TTI TransmissionTime Interval
  • multiple consecutive subframes may also be referred to as TTI
  • one time slot or one microslot may also be referred to as TTI.
  • the subframe and/or TTI may be a subframe (1 ms) in the existing LTE, or may be a period shorter than 1 ms (for example, 1 to 13 symbols), or may be a period longer than 1 ms.
  • the unit representing TTI may also be called a time slot, mini-slot, etc. instead of a subframe.
  • TTI refers to, for example, the smallest time unit scheduled in wireless communication.
  • the radio base station performs scheduling of allocating radio resources (frequency bandwidth usable in each user terminal, transmission power, etc.) to each user terminal in units of TTIs.
  • the definition of TTI is not limited to this.
  • the TTI may be a transmission time unit of a channel-encoded data packet (transport block), code block, and/or codeword, or a processing unit such as scheduling and link adaptation.
  • the time interval for example, the number of symbols
  • actually mapped to the transport block, code block, and/or codeword may also be shorter than the TTI.
  • TTI time slot or one mini-slot
  • more than one TTI that is, more than one time slot or more than one mini-slot
  • the number of slots (mini-slots) constituting the minimum time unit of the scheduling can be controlled.
  • a TTI with a time length of 1 ms may also be called a conventional TTI (TTI in LTE Rel. 8-12), a standard TTI, a long TTI, a regular subframe, a standard subframe, or a long subframe, etc.
  • the TTI shorter than the conventional TTI may also be called compressed TTI, short TTI, partial TTI (partial or fractional TTI), compressed subframe, short subframe, mini-slot, or sub-slot, and so on.
  • long TTIs such as regular TTIs, subframes, etc.
  • short TTIs such as compressed TTIs, etc.
  • TTI of TTI length is replaced.
  • a resource block is a resource allocation unit in the time domain and the frequency domain. In the frequency domain, it may include one or more consecutive subcarriers (subcarriers). In addition, the RB may include one or more symbols in the time domain, and may also be the length of one slot, one mini-slot, one subframe, or one TTI. One TTI and one subframe may be composed of one or more resource blocks, respectively. In addition, one or more RBs may also be called a physical resource block (PRB, PhysicalRB), sub-carrier group (SCG, Sub-CarrierGroup), resource element group (REG, Resource ElementGroup), PRG pair, RB pair, and so on.
  • PRB physical resource block
  • SCG sub-carrierGroup
  • REG Resource ElementGroup
  • the resource block may also be composed of one or more resource elements (RE, ResourceElement).
  • RE resource elements
  • ResourceElement resource elements
  • one RE may be a radio resource area of one subcarrier and one symbol.
  • the above-mentioned structures of radio frames, subframes, time slots, mini-slots, symbols, etc. are only examples.
  • the number of subframes included in the radio frame, the number of slots in each subframe or radio frame, the number of mini-slots included in the slot, the number of symbols and RBs included in the slot or mini-slot, the RB The structure including the number of subcarriers, the number of symbols in the TTI, the symbol length, and the length of the cyclic prefix (CP) can be changed in various ways.
  • the information, parameters, etc. described in this specification may be represented by absolute values, relative values to predetermined values, or other corresponding information.
  • radio resources can be indicated by a prescribed index.
  • formulas and the like using these parameters may be different from those explicitly disclosed in this specification.
  • the information, signals, etc. described in this specification can be expressed using any of a variety of different technologies.
  • data, commands, instructions, information, signals, bits, symbols, chips, etc. that may be mentioned in all the above descriptions can pass voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or their Any combination to represent.
  • information, signals, etc. may be output from the upper layer to the lower layer, and/or from the lower layer to the upper layer.
  • Information, signals, etc. can be input or output via multiple network nodes.
  • Input or output information, signals, etc. can be stored in a specific place (for example, memory), or can be managed through the management table. Input or output information, signals, etc. can be overwritten, updated, or supplemented. The output information, signals, etc. can be deleted. The input information, signals, etc. can be sent to other devices.
  • a specific place for example, memory
  • Input or output information, signals, etc. can be overwritten, updated, or supplemented.
  • the output information, signals, etc. can be deleted.
  • the input information, signals, etc. can be sent to other devices.
  • the notification of information is not limited to the method/embodiment described in this specification, and may be performed by other methods.
  • the notification of information may be through physical layer signaling (eg, downlink control information (DCI, DownlinkControlInformation), uplink control information (UCI, UplinkControlInformation)), upper layer signaling (eg, radio resource control (RRC, RadioResourceControl ) Signaling, broadcast information (Master Information Block (MIB, MasterInformationBlock), System Information Block (SIB, SystemInformationBlock), etc.), Media Access Control (MAC, MediumAccessControl) signaling), other signals or a combination of them.
  • DCI downlink control information
  • UCI UplinkControlInformation
  • RRC RadioResourceControl
  • Signaling eg, broadcast information (Master Information Block (MIB, MasterInformationBlock), System Information Block (SIB, SystemInformationBlock), etc.
  • MIB MasterInformationBlock
  • SIB System Information Block
  • SystemInformationBlock SystemInformationBlock
  • MAC MediumAccessControl
  • the physical layer signaling may also be referred to as L1/L2 (Layer 1/Layer 2) control information (L1/L2 control signal), L1 control information (L1 control signal), or the like.
  • RRC signaling may also be referred to as an RRC message, for example, an RRC connection establishment (RRC Connection) Setup message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, etc.
  • MAC signaling may be notified by a MAC control unit (MAC CE (Control Element)), for example.
  • the notification of the predetermined information is not limited to explicit, but may be implicitly (for example, by not notification of the predetermined information or notification of other information).
  • the determination can be made by a value represented by 1 bit (0 or 1), by a true or false value (Boolean) represented by true (true) or false (false), or by comparison of values ( For example, comparison with a predetermined value).
  • software, commands, information, etc. can be sent or received via a transmission medium.
  • a transmission medium For example, when using wired technology (coaxial cable, optical cable, twisted pair, digital subscriber line (DSL, Digital Subscriber Line), etc.) and/or wireless technology (infrared, microwave, etc.) to send software from a website, server, or other remote resource
  • wired technology coaxial cable, optical cable, twisted pair, digital subscriber line (DSL, Digital Subscriber Line), etc.
  • wireless technology infrared, microwave, etc.
  • system and "network” used in this manual can be used interchangeably.
  • radio base station BS, BaseStation
  • radio base station eNB
  • gNB gNodeB
  • cell eNodeB
  • cell group eNodeB
  • carrier femtocell
  • small cell femtocell
  • the wireless base station can accommodate one or more (for example, three) cells (also called sectors).
  • the wireless base station accommodates multiple cells, the entire coverage area of the wireless base station can be divided into multiple smaller areas, and each smaller area can also pass through the wireless base station subsystem (for example, indoor small wireless base stations (RF remote Head (RRH, RemoteRadioHead))) to provide communication services.
  • RF remote Head RF remote Head (RRH, RemoteRadioHead)
  • RRH Remote Head
  • the term "cell” or “sector” refers to a part or the whole of the coverage area of the radio base station and/or radio base station subsystem that performs communication services in the coverage.
  • Wireless base stations are sometimes also referred to by terms such as fixed station, NodeB, eNodeB (eNB), access point (accesspoint), transmission point, reception point, femtocell, and small cell.
  • Mobile stations are sometimes referred to by those skilled in the art as user stations, mobile units, user units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile user stations, access terminals, mobile terminals, wireless A terminal, a remote terminal, a handheld, a user agent, a mobile client, a client, or some other appropriate terminology.
  • both the user equipment 1000 and the base station 1100 in this specification can be replaced with a wireless base station or a user terminal.
  • the specific operation performed by the wireless base station may be performed by its upper node (upper node) depending on the situation.
  • various operations performed for communication with the terminal can pass through the wireless base station, one or more than the wireless base station Network nodes (such as Mobility Management Entity (MME, MobilityManagementEntity), Serving-Gateway (S-GW, etc., but not limited to this), or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • Each mode/embodiment described in this specification can be used alone or in combination, and can also be switched during execution.
  • the order can be changed.
  • various step units are given in an exemplary order, and are not limited to the specific order given.
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • LTE-B Long Term Evolution
  • LTE-Beyond Super 3G mobile communication system
  • IMT-Advanced 4th generation mobile communication system
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • Future Radio Access Future Radio Access
  • New Radio Access Technology New-RAT, Radio Access Technology
  • New Radio NR, New Radio
  • New Radio Access NX, New Radio Access
  • New generation of wireless access FX, Future generation radio access
  • GSM Global Mobile Communication System
  • GSM registered trademark
  • GSM Global System for Mobile Communications
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Ultra Mobile Broadband
  • IEEE802.11 Wi-Fi (registered trademark)
  • IEEE802.16 WiMAX (registered trademark)
  • any reference to units using names such as "first” and “second” used in this specification does not comprehensively limit the number or order of these units. These names can be used in this specification as a convenient method to distinguish two or more units. Therefore, the reference of the first unit and the second unit does not mean that only two units can be used or that the first unit must precede the second unit in several forms.
  • determining used in this specification sometimes includes various actions. For example, with regard to “judgment (determination)", calculation, calculation, processing, deriving, investigating, and lookingup (such as tables, databases, or other data can be (Search in the structure), confirmation (ascertaining), etc. are regarded as “judgment (determination)”. In addition, regarding “judgment (determination)”, receiving (for example, receiving information), transmitting (for example, sending information), input (input), output (output), accessing (for example Accessing the data in the memory) is regarded as “judging (determining)”. In addition, regarding “judgment (determination)”, resolving, selecting, choosing, establishing, comparing, etc. can also be regarded as “judging (determination)”. That is to say, regarding "judgment (determination)", several actions can be regarded as “judgment (determination)”.
  • connection refers to any direct or indirect connection or combination between two or more units. This includes the case where there are one or more intermediate units between two units that are “connected” or “coupled” to each other.
  • the combination or connection between the units may be physical, logical, or a combination of the two. For example, "connect” may be replaced with "access”.
  • two units can be considered as using one or more wires, cables, and/or printed electrical connections, and as several non-limiting and non-exhaustive examples, by using radio frequency regions , The electromagnetic energy of the wavelength in the microwave area, and/or the light (both visible light and invisible light) area, etc., are “connected” or “combined” with each other.

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Abstract

本发明的实施例提供了可以在无线通信系统中使用的用户设备和基站、或者由用户设备和基站执行的方法。根据本发明实施例的用户设备包括：获取单元，配置为获取基础序列表，所述基础序列表包括至少两个序列，接收单元，配置为接收与用户设备要执行的操作相关的序列选择信息；控制单元，配置为根据所述基础序列表和所述序列选择信息，确定用于所述操作的操作序列。

Description

由用户设备、基站执行的方法以及用户设备和基站 技术领域
本申请涉及无线通信领域，并且具体涉及可以在无线通信系统中使用的用户设备和基站、以及由用户设备和基站执行的方法。
背景技术
在无线通信系统中，针对不同的传输类型或传输场景，或者随着用户设备(User Equipment,UE)数量的变化，可能导致对UE的相同或不同操作选择不同的序列的情况。例如，在UE希望对要发送的符号添加多址签名时，需要预设与添加多址签名相关的多址签名序列表，并确定相应的多址签名序列；而在UE需要发送解调参考信号(Demodulation Reference Signal，DMRS)时，需要预设与DMRS发送相关的解调参考信号表，并确定相应的解调参考信号。由此可见，针对UE的各种操作，需要分别预设不同的序列表，以供基站从中指定UE的与操作相关的操作序列，然而，这一做法会大大地消耗系统开销，占用过多系统资源。
因此，需要一种针对UE的操作灵活确定相关操作序列的方法，以减少系统开销，提高无线通信系统的性能。
发明内容
根据本发明的一个方面，提供了一种用户设备，包括：获取单元，配置为获取基础序列表，所述基础序列表包括至少两个序列，接收单元，配置为接收与用户设备要执行的操作相关的序列选择信息；控制单元，配置为根据所述基础序列表和所述序列选择信息，确定用于所述操作的操作序列。
根据本发明的一个示例，其中，所述控制单元根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；从所述基础序列表的子集中，确定用于所述操作的操作序列。
根据本发明的一个示例，其中，所述操作包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。
根据本发明的一个示例，其中，所述序列选择信息包括：用于序列选择 的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
根据本发明的一个示例，其中，所述接收单元在对所述用户设备重配置时，接收更新的序列选择信息；所述控制单元根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。
根据本发明的一个示例，其中，所述接收单元接收基站发送的操作序列占用信息；所述控制单元根据所述操作序列占用信息，确定用于所述操作的操作序列。
根据本发明的另一方面，提供了一种基站，包括：控制单元，配置为确定与用户设备要执行的操作相关的序列选择信息；发送单元，配置为发送所述序列选择信息，以使所述用户设备根据包括至少两个序列的基础序列表以及所述序列选择信息，确定用于所述操作的操作序列。
根据本发明的一个示例，其中，所述操作包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。
根据本发明的一个示例，其中，所述序列选择信息包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
根据本发明的一个示例，其中，所述发送单元在对所述用户设备重配置时，发送更新的序列选择信息，以使所述用户设备根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。
根据本发明的一个示例，其中，所述基站还包括：获取单元，配置为获取用户设备用于所述操作的操作序列；所述发送单元根据所述操作序列发送操作序列占用信息，以使其他用户设备根据所述操作序列占用信息，确定自身用于所述操作的操作序列。
根据本发明的另一方面，提供了一种由用户设备执行的方法，所述方法包括：一种由用户设备执行的方法，所述方法包括：获取基础序列表，所述基础序列表包括至少两个序列；接收与用户设备要执行的操作相关的序列选择信息；根据所述基础序列表和所述序列选择信息，确定用于所述操作的操作序列。
根据本发明的一个示例，其中，所述根据所述基础序列表和所述序列选 择信息，确定用于所述操作的操作序列包括：根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；从所述基础序列表的子集中，确定用于所述操作的操作序列。
根据本发明的一个示例，其中，所述操作包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。
根据本发明的一个示例，其中，所述序列选择信息包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
根据本发明的一个示例，其中，所述方法还包括：在对所述用户设备重配置时，接收更新的序列选择信息；根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。
根据本发明的一个示例，其中，所述方法还包括：接收基站发送的操作序列占用信息；根据所述操作序列占用信息，确定用于所述操作的操作序列。
根据本发明的另一方面，提供了一种由基站执行的方法，所述方法包括：确定与用户设备要执行的操作相关的序列选择信息；发送所述序列选择信息，以使所述用户设备根据包括至少两个序列的基础序列表以及所述序列选择信息，确定用于所述操作的操作序列。
根据本发明的一个示例，其中，所述操作包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。
根据本发明的一个示例，其中，所述序列选择信息包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
根据本发明的一个示例，其中，所述方法还包括：在对所述用户设备重配置时，发送更新的序列选择信息，以使所述用户设备根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。
根据本发明的一个示例，其中，所述方法还包括：获取用户设备用于所述操作的操作序列；根据所述操作序列发送操作序列占用信息，以使其他用户设备根据所述操作序列占用信息，确定自身用于所述操作的操作序列。
利用本发明的上述方面，能够根据基础序列表和基站指示的与用户设备要执行的操作相关的序列选择信息，来确定与所述操作相关的所述基础序列 表的子集。从而，能够针对用户设备的相同或不同操作灵活确定与操作相关的操作序列选择范围，提高了用户设备序列选择的灵活性，减少了系统开销，提高了无线通信系统的性能。
附图说明
通过结合附图对本发明的实施例进行详细描述，本发明的上述和其它目的、特征、优点将会变得更加清楚。
图1示出根据本发明一个实施例的无线通信系统的示意图；
图2示出根据本发明一个实施例由用户设备执行的方法的流程图；
图3示出根据本发明实施例的基础序列表的示意图；
图4示出基础序列表中扩展因子为SF＝4的基础序列表的子集的示例；
图5示出基础序列表中扩展因子为SF＝2的基础序列表的子集的示例；
图6示出了基础序列表中，扩展因子分别为SF＝4和SF＝2的基础序列表的子集的示例；
图7示出了UE和基站及其他UE信息交互的一个示例；
图8示出了UE和基站及其他UE信息交互的另一个示例；
图9示出根据本发明一个实施例由基站执行的方法的流程图；
图10示出根据本发明一个实施例的用户设备的结构框图；
图11示出根据本发明一个实施例的基站的结构框图；
图12示出根据本发明的一个实施例所涉及的用户设备和基站的硬件结构的示例的图。
具体实施方式
下面将参照附图来描述根据本发明实施例的由用户设备、基站执行的方法以及用户设备和基站。在附图中，相同的参考标号自始至终表示相同的元件。应当理解：这里描述的实施例仅仅是说明性的，而不应被解释为限制本发明的范围。
首先，参照图1来描述根据本发明一个实施例的无线通信系统。如图1所示，该无线通信系统可以包括基站10和用户设备(UE)20。UE 20可以与基站10通信。需要认识到，尽管在图1中示出了一个基站和一个UE， 但这只是示意性的，该无线通信系统可以包括一个或多个基站和一个或多个UE。
在无线通信系统中，在不同的传输类型或传输场景中，针对UE的各种操作，需要确定与其分别对应的操作序列。根据一个示例，在随机接入过程中，UE可以确定相应的前导码(preamble)序列来进行前导码发送。根据另一个示例，UE可以采用多址签名(Multiple Access signature，MA signature)序列以对要发送的符号添加多址签名。根据再一个示例，UE可以发送用于上行信道解调的解调参考信号。根据又一个示例，UE可以利用不同的扩展因子对要发送的符号进行扩频。在上述各个示例中，UE均需要分别确定与操作相对应的操作序列，并采用所确定的操作序列进行各种操作。
考虑到上述的应用场景，希望提供一种针对UE的操作灵活确定相关操作序列的方法，以减少系统开销，提高无线通信系统的性能。
图2示出根据本发明一个实施例由用户设备执行的方法200的流程图。
如图2所示，在步骤S201中，获取基础序列表，所述基础序列表包括至少两个序列。
在一个实施方式中，所述基础序列表可以预先分别存储在UE侧和基站侧两侧。例如，所述基础序列表可以预先通过相关标准设置，并分别存储在UE和基站两侧。在另一个实施方式中，所述基础序列表也可以通过信令在基站和UE之间进行交互，例如，基站可以通过高层(如MAC层)信令或DCI等发送相关基础序列表的设置信息或多个基础序列表的选择信息，以告知UE当前使用的基础序列表。
在一个实施方式中，所述基础序列表可以分别包括基础序列索引和与基础序列索引相对应的基础序列。图3示出了根据本发明实施例的基础序列表的示意图。如图3所示，基础序列表可以包含基础序列索引为0-7的8个基础序列，分别为s0-s8。所述基础序列表可以用于UE从中确定一种或多种操作所需的操作序列。图3中的基础序列表的表示方式，及基础序列索引和基础序列一一对应的设置方式均仅为示例。在实际应用中，可以采用任何基础序列表的设置方式，所包含的基础序列的数量也不做限制。
在步骤S202中，接收与用户设备要执行的操作相关的序列选择信息。
在本步骤中，UE将接收基站指示的序列选择信息，所述序列选择信息 与UE要执行的操作相关。所述序列选择信息可以使得所述UE从所述基础序列表中选择与其要执行的操作相关的基础序列表的子集，并进一步从中确定用于操作的操作序列。在一个示例中，基站可以通过高层信令(例如无线资源控制(Radio Resource Control，RRC)信令)指示与UE要执行的操作相关的序列选择信息；在另一个示例中，基站可以通过例如下行控制信息(Downlink Control Information，DCI)来指示与UE要执行的操作相关的序列选择信息。在具体实现过程中，可选地，基站可以同时指示UE要执行的操作类型，以及与操作相对应的序列选择信息，所述操作可以为一个，也可以为多个。例如，基站可以通过显式方式(如DCI中一个或多个特定的比特)指示UE要执行的操作类型及对应的序列选择信息；再例如，基站也可以通过隐式方式(如通过所述序列选择信息所在的DCI中的特定位置)指示UE要执行的操作类型及对应的序列选择信息，如利用DCI中的第一位置指示操作类型为MA签名添加及相应的MA序列，而利用DCI中的第二位置指示操作类型为DMRS发送及相应的DMRS。
根据本发明一个实施方式，所述操作可以包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。根据本发明另一个实施方式，所述序列选择信息可以包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
在步骤S203中，根据所述基础序列表和所述序列选择信息，确定用于所述操作的操作序列。
其中，可以首先根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；随后从所述基础序列表的子集中，确定用于所述操作的操作序列。所述基础序列表的子集可以为基础序列表本身，也可以为基础序列表的其中一部分。
在一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。由于UE已获知基础序列表的内容，因此，上述基础序列数量M的取值可以根据UE所获知的基础序列表直接得到。例如， 当所述操作为前导码发送时，可将与前导码发送相关的基础序列表的子集表示为：mod(i+j,M)，其中j＝0,1,…,m-1。以图3所示的基础序列表为例，当基础序列数量M＝8，用于序列选择的起始索引i＝6，所述基础序列表的子集中的序列数量m＝4时，供前导码序列选择的基础序列表的子集可以表示为{s6,s7,s0,s1}。这一示例中的用于序列选择的起始索引i＝6也可以理解为基础序列表的子集中起始的序列在基础序列表中的索引值。
在另一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i、对基础序列表进行分组的分组数量K和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。同样地，上述基础序列数量M的取值可以根据UE所获知的基础序列表直接得到。可选地，对基础序列表进行分组的方式可以是预设的分组方式，也可以通过基站将特定的分组方式告知UE，在此不做限制。在一个示例中，当所述操作为多址签名时，可将与多址签名相关的基础序列表的子集表示为：mod(i+j,M/K)，其中j＝0,1,…,m-1。在图3所示的基础序列表的示例中，当基础序列数量M＝8，用于序列选择的起始索引i＝6，对基础序列表进行分组的分组数量K＝2，所述基础序列表的子集中的序列数量m＝4时，供多址签名序列选择的基础序列表的子集可以表示为{s2,s3,s0,s1}。这一示例中的用于序列选择的起始索引i＝6也可以理解为对基础序列表的子集进行计算的起始值。在这一示例中，基础序列表的子集可以从基础序列表的一个或多个分组中获得；当然，基础序列表的子集也可以与基础序列表的一个或多个分组完全相同。
在另一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i、对基础序列表进行分组的分组数量K、分组索引L和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。与前述相同，基础序列数量M的取值可以根据UE所获知的基础序列表直接得到，对基础序列表进行分组的方式可以是预设的分组方式，也可以通过基站将特定的分组方式告知UE，在此不做限制。例如，当所述操作为解调参考信号发送时，可将与解调参考信号发送相关的基础序列表的子集表示为：L×M/K+mod(i+j,M/K)，其中j＝0,1,…,m-1。在图3所示的基础 序列表的示例中，当基础序列数量M＝8，用于序列选择的起始索引i＝6，对基础序列表进行分组的分组数量K＝2，分组索引L＝1，所述基础序列表的子集中的序列数量m＝4时，供解调参考信号发送的基础序列表的子集可以表示为{s6,s7,s4,s5}。同样，在这一示例中，基础序列表的子集可以从基础序列表的一个或多个分组中获得；当然，基础序列表的子集也可以与基础序列表的一个或多个分组完全相同。
在另一个示例中，UE可以根据所述基础序列表和包含扩展因子SF(spreading factor)的序列选择信息，来确定与扩频相关的所述基础序列表的子集，用于指示扩频时所采用的扩展序列。图4示出了基础序列表中，扩展因子为SF＝4的基础序列表的子集的示例。图4所示的表格为基础序列表，而方框内为扩展因子SF＝4的基础序列表的子集。例如，当序列选择信息包括SF＝4，起始索引i＝2时，基础序列表的子集可以表示为{s20,s21,s22,s23}。图5示出了基础序列表中，扩展因子为SF＝2的基础序列表的子集的示例。图5所示的表格为基础序列表，而两个方框内分别为扩展因子SF＝2的基础序列表的子集。例如，当序列选择信息包括SF＝2，起始索引i＝5时，基础序列表的子集可以表示为{s50,s51}，或者可以表示为{s52,s53}。根据图4和图5，可知在基础序列表相同的情况下，可以根据不同扩展因子在基础序列表中不同的嵌套方式，来确定不同的基础序列表的子集。在具体的实施过程中，扩展序列的长度也可以根据扩展因子的不同而变化。图6示出了基础序列表中，扩展因子分别为SF＝4和SF＝2的基础序列表的子集的示例。如图6可知，当扩展因子为SF＝4时，基础序列表的子集可以为例如基础序列索引i＝1时的{1,-1,1,-1}。而当扩展因子为SF＝2时，基础序列表的子集可以为例如基础序列索引i＝1时的{1,-1}。
以上描述了本步骤中根据所述基础序列表和所述序列选择信息确定基础序列表的子集的各种示例。在本发明一个实施方式中，当传输类型或传输场景发生变化，或者UE的数量发生变化时，可以对UE进行重配，并针对UE确定的所在的基础序列表的子集及其操作序列进行更新。具体地，在对所述用户设备重配置时，UE可以接收基站发送的更新的序列选择信息，并根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。可选地，可以首先根据基础序列表和所述更新的序列选择信息来确定更新的基 础序列表的子集，然后从中确定更新的操作序列。另外，基站同样可以通过高层信令(例如无线资源控制(Radio Resource Control，RRC)信令)或通过例如下行控制信息(Downlink Control Information，DCI)来指示更新的序列选择信息。所述序列选择信息也依然可以包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。可选地，更新的序列选择信息可以是上述参数中一个或多个的更新值。例如，更新的序列选择信息可以通过添加偏移值offset将用于序列选择的起始索引i更新为i+offset，和/或将所述基础序列表的子集中的序列数量m更新为m+offset。再例如，更新的序列选择信息也可以将对基础序列表进行分组的分组数量K或分组索引L分别修改为K+1或L+2。以上针对序列选择信息的更新方式仅为示例，在实际应用中，可以采用任意序列选择信息的更新方式，在此不做限制。
在一个示例中，当UE从所述基础序列表的子集(或更新后的基础序列表的子集)中确定用于所述操作的操作序列时，可以在根据基础序列表和序列选择信息确定的子集中，任意选择其中的一个序列作为用于所述操作的操作序列。在另一个示例中，为了避免与其他UE的资源冲突，UE也可以首先接收基站发送的与其他UE占用的资源(如利用操作序列表示)相关的操作序列占用信息，并根据所述操作序列占用信息，确定用于所述操作的操作序列。可选地，所述操作序列占用信息可以包含在所述序列选择信息中一并进行发送，也可以单独进行发送。也即所述操作序列占用信息可以为所述序列选择信息的一部分，也可以独立于所述序列选择信息。其中，基站可以通过其接收的其他UE通过某个操作发送的上行数据，来获取其他UE所使用的操作序列，并获取相应的操作序列占用信息，以告知此UE。例如，当UE确定的基础序列表的子集为{s2,s3,s0,s1}，而其他UE的操作序列占用信息包括{s2}时，可以使得此UE可以在{s3,s0,s1}中选择用于操作的操作序列。
图7示出了UE和基站及其他UE信息交互的一个示例。如图7所示，基站可以向UE和其他UE同时发送用于指示与某个操作相关的序列选择信息，在接收到序列选择信息之后，UE和其他UE可以分别根据基础序列表和序列选择信息分别来确定基础序列表的子集，并进一步确定各自的用于此操作的操作序列。在此过程中，基站可以在此操作执行之前的特定时间范围 内发送序列选择信息，以保证各个UE在执行此操作之前能够获取序列选择信息，并进一步确定相应的操作序列。在分别确定各自的操作序列后，UE和其他UE将分别执行相应的操作，并发送上行数据。所述序列选择信息可以周期性或非周期性地发送。在一个示例中，基站可以将序列选择信息与其他配置信息(例如调制与编码方案(Modulation and Coding Scheme，MCS))共同发出，以节约系统的信令资源。在另一个示例中，基站可以在公共搜索空间(common search space)中通过使用GC-PDCCH(物理下行控制信道，Physical Downlink Control Channel)或其他DCI来发送所述序列选择信息，以使得每个UE都可以对序列选择信息进行检测，而无需对每个UE单独进行指示。
图8示出了UE和基站及其他UE信息交互的另一个示例。如图8所示，其中的一个或多个UE可以首先使用某一可用的资源对应的操作序列进行操作，并向基站发送上行数据，随后，基站可以通过其接收的与该操作相关的上行数据，来获取这一个或多个UE相应的操作序列占用信息，并发送序列选择信息和/或操作序列占用信息。当基站发送操作序列占用信息后，可以使得其他UE避免使用已被占用的操作序列进行操作，从而避免例如非正交多址接入(Non-OrthogonalMultiple Access，NOMA)下的资源冲突。其中所述操作序列占用信息可以包含在所述序列选择信息中进行发送，也可以单独进行发送。在此过程中，基站同样可以在此操作执行之前的特定时间范围内发送序列选择信息和/或操作序列占用信息，以保证各个UE在执行此操作之前能够获取所需的信息，并进一步确定相应的操作序列。在分别确定各自的操作序列后，UE和其他UE将分别发送上行数据。所述序列选择信息和/或操作序列占用信息可以周期性或非周期性地发送。在一个示例中，基站可以将序列选择信息和/或操作序列占用信息与其他配置信息(例如调制与编码策略(Modulation and Coding Scheme，MCS))共同发出，以节约系统的信令资源。在另一个示例中，基站可以在公共搜索空间(common search space)中通过使用GC-PDCCH(物理下行控制信道，Physical Downlink Control Channel)或其他DCI来发送所述序列选择信息和/或操作序列占用信息，以使得每个UE都可以对其进行检测，而无需对每个UE单独进行指示。
当所述基站通过DCI来发送所述序列选择信息和/或操作序列占用信息 时，可以通过现有的DCI格式进行发送，也可以利用新的DCI格式进行发送。例如，基站可以利用一个或多个现有的DCI发送：通过GC-PCDDH中的DCI format 2_0、DCI format 2_1、DCI format 2_2、DCI format 2_3发送；通过公共搜索空间中(DCI 0_0、DCI 0_1)利用不同的无线网络临时标识(Radio Network Tempory Identity，RNTI)加扰方式进行发送，利用预留比特位(如MCS中的表1/3的索引29-31、其他MCS表格的索引28-31)进行发送，或者利用“上行导频参考信号(Sounding Reference Signal，SRS)资源指示符”字段、“预编码信息和层数”字段、“天线端口”字段等方式发送。再例如，基站还可以利用4-9位新的DCI格式进行发送。在上述各种DCI的发送方式中，基站可以利用各种取值范围来分别指示例如解调参考信号的起始索引、分组数量或多址签名序列的起始索引、分组数量等参数。例如，可以将解调参考信号的起始索引取值定义为0-15，分组数量取值定义为0-3；或将多址签名序列的起始索引取值定义为0-31，分组数量取值定义为0-7。上述对DCI格式和相关参数取值范围的定义仅为示例，在实际应用中，可以采用任何DCI格式和取值方式，在此不做限制。
利用本发明的上述方法，能够根据基础序列表和基站指示的与用户设备要执行的操作相关的序列选择信息，来确定与所述操作相关的所述基础序列表的子集。从而，可以不需要针对每种操作分别设置序列表，并且可以利用针对用户设备的相同或不同操作灵活确定操作序列，提高了用户设备序列选择的灵活性，减少了系统开销，提高了无线通信系统的性能。另外，通过对用户设备各种操作对应的基础序列表的子集的限制，还可以尽量避免例如NOMA下的资源冲突，提高信息传输的有效性。
图9示出根据本发明一个实施例由基站执行的方法900的流程图。
如图9所示，在步骤S901中，确定与用户设备要执行的操作相关的序列选择信息。
所述序列选择信息用于UE从基础序列表中确定用于所述操作的操作序列。具体地，UE可以首先根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；随后，从所述基础序列表的子集中，确定用于所述操作的操作序列。
在一个实施方式中，所述基础序列表可以预先分别存储在UE侧和基站 侧两侧。例如，所述基础序列表可以预先通过相关标准设置，并分别存储在UE和基站两侧。在另一个实施方式中，所述基础序列表也可以通过信令在基站和UE之间进行交互，例如，基站可以通过高层(如MAC层)信令或DCI等发送相关基础序列表的设置信息或多个基础序列表的选择信息，以告知UE当前使用的基础序列表。
在一个实施方式中，所述基础序列表可以分别包括基础序列索引和与基础序列索引相对应的基础序列。图3示出了根据本发明实施例的基础序列表的示意图。如图3所示，基础序列表可以包含基础序列索引为0-7的8个基础序列，分别为s0-s8。所述基础序列表可以用于UE从中确定一种或多种操作所需的操作序列。图3中的基础序列表的表示方式，及基础序列索引和基础序列一一对应的设置方式均仅为示例。在实际应用中，可以采用任何基础序列表的设置方式，所包含的基础序列的数量也不做限制。
根据本发明一个实施方式，用户设备要执行的操作可以包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。根据本发明另一个实施方式，所述序列选择信息可以包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
在步骤S902中，发送所述序列选择信息，以使所述用户设备根据包括至少两个序列的基础序列表以及所述序列选择信息，确定用于所述操作的操作序列。
在一个示例中，基站可以通过高层信令(例如无线资源控制(Radio Resource Control，RRC)信令)指示与UE要执行的操作相关的序列选择信息；在另一个示例中，基站可以通过例如下行控制信息(Downlink Control Information，DCI)来指示与UE要执行的操作相关的序列选择信息。在具体实现过程中，可选地，基站可以同时指示UE要执行的操作类型，以及与操作相对应的序列选择信息，所述操作可以为一个，也可以为多个。例如，基站可以通过显式方式(如DCI中一个或多个特定的比特)指示UE要执行的操作类型及对应的序列选择信息；再例如，基站也可以通过隐式方式(如通过所述序列选择信息所在的DCI中的特定位置)指示UE要执行的操作类型及对应的序列选择信息，如利用DCI中的第一位置指示操作类型为MA 签名添加及相应的MA序列，而利用DCI中的第二位置指示操作类型为DMRS发送及相应的DMRS。
UE在接收到基站发送的序列选择信息之后，如前所述，可以首先根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；随后从所述基础序列表的子集中，确定用于所述操作的操作序列。所述基础序列表的子集可以为基础序列表本身，也可以为基础序列表的其中一部分。
在一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。由于UE已获知基础序列表的内容，因此，上述基础序列数量M的取值可以根据UE所获知的基础序列表直接得到。例如，当所述操作为前导码发送时，可将与前导码发送相关的基础序列表的子集表示为：mod(i+j,M)，其中j＝0,1,…,m-1。以图3所示的基础序列表为例，当基础序列数量M＝8，用于序列选择的起始索引i＝6，所述基础序列表的子集中的序列数量m＝4时，供前导码序列选择的基础序列表的子集可以表示为{s6,s7,s0,s1}。这一示例中的用于序列选择的起始索引i＝6也可以理解为基础序列表的子集中起始的序列在基础序列表中的索引值。
在另一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i、对基础序列表进行分组的分组数量K和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。同样地，上述基础序列数量M的取值可以根据UE所获知的基础序列表直接得到。可选地，对基础序列表进行分组的方式可以是预设的分组方式，也可以通过基站将特定的分组方式告知UE，在此不做限制。在一个示例中，当所述操作为多址签名时，可将与多址签名相关的基础序列表的子集表示为：mod(i+j,M/K)，其中j＝0,1,…,m-1。在图3所示的基础序列表的示例中，当基础序列数量M＝8，用于序列选择的起始索引i＝6，对基础序列表进行分组的分组数量K＝2，所述基础序列表的子集中的序列数量m＝4时，供多址签名序列选择的基础序列表的子集可以表示为{s2,s3,s0,s1}。这一示例中的用于序列选择 的起始索引i＝6也可以理解为对基础序列表的子集进行计算的起始值。在这一示例中，基础序列表的子集可以从基础序列表的一个或多个分组中获得；当然，基础序列表的子集也可以与基础序列表的一个或多个分组完全相同。
在另一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i、对基础序列表进行分组的分组数量K、分组索引L和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。与前述相同，基础序列数量M的取值可以根据UE所获知的基础序列表直接得到，对基础序列表进行分组的方式可以是预设的分组方式，也可以通过基站将特定的分组方式告知UE，在此不做限制。例如，当所述操作为解调参考信号发送时，可将与解调参考信号发送相关的基础序列表的子集表示为：L×M/K+mod(i+j,M/K)，其中j＝0,1,…,m-1。在图3所示的基础序列表的示例中，当基础序列数量M＝8，用于序列选择的起始索引i＝6，对基础序列表进行分组的分组数量K＝2，分组索引L＝1，所述基础序列表的子集中的序列数量m＝4时，供解调参考信号发送的基础序列表的子集可以表示为{s6,s7,s4,s5}。同样，在这一示例中，基础序列表的子集可以从基础序列表的一个或多个分组中获得；当然，基础序列表的子集也可以与基础序列表的一个或多个分组完全相同。
在另一个示例中，UE可以根据所述基础序列表和包含扩展因子SF(spreading factor)的序列选择信息，来确定与扩频相关的所述基础序列表的子集，用于指示扩频时所采用的扩展序列。图4示出了基础序列表中，扩展因子为SF＝4的基础序列表的子集的示例。图4所示的表格为基础序列表，而方框内为扩展因子SF＝4的基础序列表的子集。例如，当序列选择信息包括SF＝4，起始索引i＝2时，基础序列表的子集可以表示为{s20,s21,s22,s23}。图5示出了基础序列表中，扩展因子为SF＝2的基础序列表的子集的示例。图5所示的表格为基础序列表，而两个方框内分别为扩展因子SF＝2的基础序列表的子集。例如，当序列选择信息包括SF＝2，起始索引i＝5时，基础序列表的子集可以表示为{s50,s51}，或者可以表示为{s52,s53}。根据图4和图5，可知在基础序列表相同的情况下，可以根据不同扩展因子在基础序列表中不同的嵌套方式，来确定不同的基础序列表的子集。在具体的实施过程 中，扩展序列的长度也可以根据扩展因子的不同而变化。图6示出了基础序列表中，扩展因子分别为SF＝4和SF＝2的基础序列表的子集的示例。如图6可知，当扩展因子为SF＝4时，基础序列表的子集可以为例如基础序列索引i＝1时的{1,-1,1,-1}。而当扩展因子为SF＝2时，基础序列表的子集可以为例如基础序列索引i＝1时的{1,-1}。
以上描述了UE根据所述基础序列表和所述序列选择信息确定基础序列表的子集的各种示例。在本发明一个实施方式中，当传输类型或传输场景发生变化，或者UE的数量发生变化时，基站可以对UE进行重配，并针对UE确定的所在的基础序列表的子集及其操作序列进行更新。具体地，在对所述用户设备重配置时，基站可以发送更新的序列选择信息，并使得UE根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。可选地，UE可以首先根据基础序列表和所述更新的序列选择信息来确定更新的基础序列表的子集，然后从中确定更新的操作序列。另外，基站同样可以通过高层信令(例如无线资源控制(Radio Resource Control，RRC)信令)或通过例如下行控制信息(Downlink Control Information，DCI)来指示更新的序列选择信息。所述序列选择信息也依然可以包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。可选地，更新的序列选择信息可以是上述参数中一个或多个的更新值。例如，更新的序列选择信息可以通过添加偏移值offset将用于序列选择的起始索引i更新为i+offset，和/或将所述基础序列表的子集中的序列数量m更新为m+offset。再例如，更新的序列选择信息也可以将对基础序列表进行分组的分组数量K或分组索引L分别修改为K+1或L+2。以上针对序列选择信息的更新方式仅为示例，在实际应用中，可以采用任意序列选择信息的更新方式，在此不做限制。
在一个示例中，当UE从所述基础序列表的子集(或更新后的基础序列表的子集)中确定用于所述操作的操作序列时，可以在根据基础序列表和序列选择信息确定的子集中，任意选择其中的一个序列作为用于所述操作的操作序列。在另一个示例中，为了避免与其他UE的资源冲突，UE也可以首先接收基站发送的与其他UE占用的资源(如利用操作序列表示)相关的操作序列占用信息，并根据所述操作序列占用信息，确定用于所述操作的操作 序列。可选地，所述操作序列占用信息可以包含在所述序列选择信息中一并进行发送，也可以单独进行发送。也即所述操作序列占用信息可以为所述序列选择信息的一部分，也可以独立于所述序列选择信息。其中，基站可以通过其接收的其他UE通过某个操作发送的上行数据，来获取其他UE所使用的操作序列，并获取相应的操作序列占用信息，以告知此UE。例如，当UE确定的基础序列表的子集为{s2,s3,s0,s1}，而其他UE的操作序列占用信息包括{s2}时，可以使得此UE可以在{s3,s0,s1}中选择用于操作的操作序列。
图7示出了UE和基站及其他UE信息交互的一个示例。如图7所示，基站可以向UE和其他UE同时发送用于指示与某个操作相关的序列选择信息，在接收到序列选择信息之后，UE和其他UE可以分别根据基础序列表和序列选择信息分别来确定基础序列表的子集，并进一步确定各自的用于此操作的操作序列。在此过程中，基站可以在此操作执行之前的特定时间范围内发送序列选择信息，以保证各个UE在执行此操作之前能够获取序列选择信息，并进一步确定相应的操作序列。在分别确定各自的操作序列后，UE和其他UE将分别执行相应的操作，并发送上行数据。所述序列选择信息可以周期性或非周期性地发送。在一个示例中，基站可以将序列选择信息与其他配置信息(例如调制与编码方案(Modulation and Coding Scheme，MCS))共同发出，以节约系统的信令资源。在另一个示例中，基站可以在公共搜索空间(common search space)中通过使用GC-PDCCH(物理下行控制信道，Physical Downlink Control Channel)或其他DCI来发送所述序列选择信息，以使得每个UE都可以对序列选择信息进行检测，而无需对每个UE单独进行指示。
图8示出了UE和基站及其他UE信息交互的另一个示例。如图8所示，其中的一个或多个UE可以首先使用某一可用的资源对应的操作序列进行操作，并向基站发送上行数据，随后，基站可以通过其接收的与该操作相关的上行数据，来获取这一个或多个UE相应的操作序列占用信息，并发送序列选择信息和/或操作序列占用信息。当基站发送操作序列占用信息后，可以使得其他UE避免使用已被占用的操作序列进行操作，从而避免例如非正交多址接入(Non-OrthogonalMultiple Access，NOMA)下的资源冲突。其中所述操作序列占用信息可以包含在所述序列选择信息中进行发送，也可以单独进 行发送。在此过程中，基站同样可以在此操作执行之前的特定时间范围内发送序列选择信息和/或操作序列占用信息，以保证各个UE在执行此操作之前能够获取所需的信息，并进一步确定相应的操作序列。在分别确定各自的操作序列后，UE和其他UE将分别发送上行数据。所述序列选择信息和/或操作序列占用信息可以周期性或非周期性地发送。在一个示例中，基站可以将序列选择信息和/或操作序列占用信息与其他配置信息(例如调制与编码策略(Modulation and Coding Scheme，MCS))共同发出，以节约系统的信令资源。在另一个示例中，基站可以在公共搜索空间(common search space)中通过使用GC-PDCCH(物理下行控制信道，Physical Downlink Control Channel)或其他DCI来发送所述序列选择信息和/或操作序列占用信息，以使得每个UE都可以对其进行检测，而无需对每个UE单独进行指示。
当所述基站通过DCI来发送所述序列选择信息和/或操作序列占用信息时，可以通过现有的DCI格式进行发送，也可以利用新的DCI格式进行发送。例如，基站可以利用一个或多个现有的DCI发送：通过GC-PCDDH中的DCI format 2_0、DCI format 2_1、DCI format 2_2、DCI format 2_3发送；通过公共搜索空间中(DCI 0_0、DCI 0_1)利用不同的无线网络临时标识(Radio Network Tempory Identity，RNTI)加扰方式进行发送，利用预留比特位(如MCS中的表1/3的索引29-31、其他MCS表格的索引28-31)进行发送，或者利用“上行导频参考信号(Sounding Reference Signal，SRS)资源指示符”字段、“预编码信息和层数”字段、“天线端口”字段等方式发送。再例如，基站还可以利用4-9位新的DCI格式进行发送。在上述各种DCI的发送方式中，基站可以利用各种取值范围来分别指示例如解调参考信号的起始索引、分组数量或多址签名序列的起始索引、分组数量等参数。例如，可以将解调参考信号的起始索引取值定义为0-15，分组数量取值定义为0-3；或将多址签名序列的起始索引取值定义为0-31，分组数量取值定义为0-7。上述对DCI格式和相关参数取值范围的定义仅为示例，在实际应用中，可以采用任何DCI格式和取值方式，在此不做限制。
利用本发明的上述方法操作的基站，能够使得用户设备根据基础序列表和与用户设备要执行的操作相关的序列选择信息，来确定与所述操作相关的所述基础序列表的子集。从而，可以不需要针对每种操作分别提供序列表， 并且可以针对用户设备的相同或不同操作灵活确定操作序列，提高了用户设备序列选择的灵活性，减少了系统开销，提高了无线通信系统的性能。另外，通过对用户设备各种操作对应的基础序列表的子集的限制，还可以尽量避免例如NOMA下的资源冲突，提高信息传输的有效性。
以下参照图10来描述根据本申请实施例的用户设备。该用户设备可以执行上述由用户设备执行的方法。由于该用户设备的操作与上文所述的方法的各个步骤基本相同，因此在这里只对其进行简要的描述，而省略对相同内容的重复描述。
如图10所示，用户设备1000包括获取单元1010、接收单元1020和控制单元1030。需要认识到，图10仅示出与本申请的实施例相关的部件，而省略了其他部件，但这只是示意性的，根据需要，用户设备1000可以包括其他部件。
获取单元1010获取基础序列表，所述基础序列表包括至少两个序列。
在一个实施方式中，所述基础序列表可以预先分别存储在UE侧和基站侧两侧。例如，所述基础序列表可以预先通过相关标准设置，并分别存储在UE和基站两侧。在另一个实施方式中，所述基础序列表也可以通过信令在基站和UE之间进行交互，例如，基站可以通过高层(如MAC层)信令或DCI等发送相关基础序列表的设置信息或多个基础序列表的选择信息，以告知UE当前使用的基础序列表。
在一个实施方式中，所述基础序列表可以分别包括基础序列索引和与基础序列索引相对应的基础序列。图3示出了根据本发明实施例的基础序列表的示意图。如图3所示，基础序列表可以包含基础序列索引为0-7的8个基础序列，分别为s0-s8。所述基础序列表可以用于UE从中确定一种或多种操作所需的操作序列。图3中的基础序列表的表示方式，及基础序列索引和基础序列一一对应的设置方式均仅为示例。在实际应用中，可以采用任何基础序列表的设置方式，所包含的基础序列的数量也不做限制。
接收单元1020接收与用户设备要执行的操作相关的序列选择信息。
接收单元1020将接收基站指示的序列选择信息，所述序列选择信息与UE要执行的操作相关。所述序列选择信息可以使得所述UE从所述基础序列表中选择与其要执行的操作相关的基础序列表的子集，并进一步从中确定 用于操作的操作序列。在一个示例中，基站可以通过高层信令(例如无线资源控制(Radio Resource Control，RRC)信令)指示与UE要执行的操作相关的序列选择信息；在另一个示例中，基站可以通过例如下行控制信息(Downlink Control Information，DCI)来指示与UE要执行的操作相关的序列选择信息。在具体实现过程中，可选地，基站可以同时指示UE要执行的操作类型，以及与操作相对应的序列选择信息，所述操作可以为一个，也可以为多个。例如，基站可以通过显式方式(如DCI中一个或多个特定的比特)指示UE要执行的操作类型及对应的序列选择信息；再例如，基站也可以通过隐式方式(如通过所述序列选择信息所在的DCI中的特定位置)指示UE要执行的操作类型及对应的序列选择信息，如利用DCI中的第一位置指示操作类型为MA签名添加及相应的MA序列，而利用DCI中的第二位置指示操作类型为DMRS发送及相应的DMRS。
根据本发明一个实施方式，所述操作可以包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。根据本发明另一个实施方式，所述序列选择信息可以包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
控制单元1030根据所述基础序列表和所述序列选择信息，确定用于所述操作的操作序列。
其中，控制单元1030可以首先根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；随后从所述基础序列表的子集中，确定用于所述操作的操作序列。所述基础序列表的子集可以为基础序列表本身，也可以为基础序列表的其中一部分。
在一个示例中，控制单元1030可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。由于UE已获知基础序列表的内容，因此，上述基础序列数量M的取值可以根据UE所获知的基础序列表直接得到。例如，当所述操作为前导码发送时，可将与前导码发送相关的基础序列表的子集表示为：mod(i+j,M)，其中j＝0,1,…,m-1。以图3所示的基础序列 表为例，当基础序列数量M＝8，用于序列选择的起始索引i＝6，所述基础序列表的子集中的序列数量m＝4时，供前导码序列选择的基础序列表的子集可以表示为{s6,s7,s0,s1}。这一示例中的用于序列选择的起始索引i＝6也可以理解为基础序列表的子集中起始的序列在基础序列表中的索引值。
在另一个示例中，控制单元1030可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i、对基础序列表进行分组的分组数量K和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。同样地，上述基础序列数量M的取值可以根据UE所获知的基础序列表直接得到。可选地，对基础序列表进行分组的方式可以是预设的分组方式，也可以通过基站将特定的分组方式告知UE，在此不做限制。在一个示例中，当所述操作为多址签名时，可将与多址签名相关的基础序列表的子集表示为：mod(i+j,M/K)，其中j＝0,1,…,m-1。在图3所示的基础序列表的示例中，当基础序列数量M＝8，用于序列选择的起始索引i＝6，对基础序列表进行分组的分组数量K＝2，所述基础序列表的子集中的序列数量m＝4时，供多址签名序列选择的基础序列表的子集可以表示为{s2,s3,s0,s1}。这一示例中的用于序列选择的起始索引i＝6也可以理解为对基础序列表的子集进行计算的起始值。在这一示例中，基础序列表的子集可以从基础序列表的一个或多个分组中获得；当然，基础序列表的子集也可以与基础序列表的一个或多个分组完全相同。
在另一个示例中，控制单元1030可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i、对基础序列表进行分组的分组数量K、分组索引L和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。与前述相同，基础序列数量M的取值可以根据UE所获知的基础序列表直接得到，对基础序列表进行分组的方式可以是预设的分组方式，也可以通过基站将特定的分组方式告知UE，在此不做限制。例如，当所述操作为解调参考信号发送时，可将与解调参考信号发送相关的基础序列表的子集表示为：L×M/K+mod(i+j,M/K)，其中j＝0,1,…,m-1。在图3所示的基础序列表的示例中，当基础序列数量M＝8，用于序列选择的起始索引 i＝6，对基础序列表进行分组的分组数量K＝2，分组索引L＝1，所述基础序列表的子集中的序列数量m＝4时，供解调参考信号发送的基础序列表的子集可以表示为{s6,s7,s4,s5}。同样，在这一示例中，基础序列表的子集可以从基础序列表的一个或多个分组中获得；当然，基础序列表的子集也可以与基础序列表的一个或多个分组完全相同。
在另一个示例中，控制单元1030可以根据所述基础序列表和包含扩展因子SF(spreading factor)的序列选择信息，来确定与扩频相关的所述基础序列表的子集，用于指示扩频时所采用的扩展序列。图4示出了基础序列表中，扩展因子为SF＝4的基础序列表的子集的示例。图4所示的表格为基础序列表，而方框内为扩展因子SF＝4的基础序列表的子集。例如，当序列选择信息包括SF＝4，起始索引i＝2时，基础序列表的子集可以表示为{s20,s21,s22,s23}。图5示出了基础序列表中，扩展因子为SF＝2的基础序列表的子集的示例。图5所示的表格为基础序列表，而两个方框内分别为扩展因子SF＝2的基础序列表的子集。例如，当序列选择信息包括SF＝2，起始索引i＝5时，基础序列表的子集可以表示为{s50,s51}，或者可以表示为{s52,s53}。根据图4和图5，可知在基础序列表相同的情况下，可以根据不同扩展因子在基础序列表中不同的嵌套方式，来确定不同的基础序列表的子集。在具体的实施过程中，扩展序列的长度也可以根据扩展因子的不同而变化。图6示出了基础序列表中，扩展因子分别为SF＝4和SF＝2的基础序列表的子集的示例。如图6可知，当扩展因子为SF＝4时，基础序列表的子集可以为例如基础序列索引i＝1时的{1,-1,1,-1}。而当扩展因子为SF＝2时，基础序列表的子集可以为例如基础序列索引i＝1时的{1,-1}。
以上描述了控制单元1030根据所述基础序列表和所述序列选择信息确定基础序列表的子集的各种示例。在本发明一个实施方式中，当传输类型或传输场景发生变化，或者UE的数量发生变化时，可以对UE进行重配，并针对UE确定的所在的基础序列表的子集及其操作序列进行更新。具体地，在对所述用户设备重配置时，接收单元1020可以接收基站发送的更新的序列选择信息，控制单元1030根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。可选地，控制单元1030可以首先根据基础序列表和所述更新的序列选择信息来确定更新的基础序列表的子集，然后从中确 定更新的操作序列。另外，基站同样可以通过高层信令(例如无线资源控制(Radio Resource Control，RRC)信令)或通过例如下行控制信息(Downlink Control Information，DCI)来指示更新的序列选择信息。所述序列选择信息也依然可以包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。可选地，更新的序列选择信息可以是上述参数中一个或多个的更新值。例如，更新的序列选择信息可以通过添加偏移值offset将用于序列选择的起始索引i更新为i+offset，和/或将所述基础序列表的子集中的序列数量m更新为m+offset。再例如，更新的序列选择信息也可以将对基础序列表进行分组的分组数量K或分组索引L分别修改为K+1或L+2。以上针对序列选择信息的更新方式仅为示例，在实际应用中，可以采用任意序列选择信息的更新方式，在此不做限制。
在一个示例中，当控制单元1030从所述基础序列表的子集(或更新后的基础序列表的子集)中确定用于所述操作的操作序列时，可以在根据基础序列表和序列选择信息确定的子集中，任意选择其中的一个序列作为用于所述操作的操作序列。在另一个示例中，为了避免与其他UE的资源冲突，UE也可以首先通过接收单元1020接收基站发送的与其他UE占用的资源(如利用操作序列表示)相关的操作序列占用信息，使得控制单元1030根据所述操作序列占用信息，确定用于所述操作的操作序列。可选地，所述操作序列占用信息可以包含在所述序列选择信息中一并进行发送，也可以单独进行发送。也即所述操作序列占用信息可以为所述序列选择信息的一部分，也可以独立于所述序列选择信息。其中，基站可以通过其接收的其他UE通过某个操作发送的上行数据，来获取其他UE所使用的操作序列，并获取相应的操作序列占用信息，以告知此UE。例如，当UE确定的基础序列表的子集为{s2,s3,s0,s1}，而其他UE的操作序列占用信息包括{s2}时，可以使得此UE可以在{s3,s0,s1}中选择用于操作的操作序列。
图7示出了UE和基站及其他UE信息交互的一个示例。如图7所示，基站可以向UE和其他UE同时发送用于指示与某个操作相关的序列选择信息，在接收到序列选择信息之后，UE和其他UE可以分别根据基础序列表和序列选择信息分别来确定基础序列表的子集，并进一步确定各自的用于此 操作的操作序列。在此过程中，基站可以在此操作执行之前的特定时间范围内发送序列选择信息，以保证各个UE在执行此操作之前能够获取序列选择信息，并进一步确定相应的操作序列。在分别确定各自的操作序列后，UE和其他UE将分别执行相应的操作，并发送上行数据。所述序列选择信息可以周期性或非周期性地发送。在一个示例中，基站可以将序列选择信息与其他配置信息(例如调制与编码方案(Modulation and Coding Scheme，MCS))共同发出，以节约系统的信令资源。在另一个示例中，基站可以在公共搜索空间(common search space)中通过使用GC-PDCCH(物理下行控制信道，Physical Downlink Control Channel)或其他DCI来发送所述序列选择信息，以使得每个UE都可以对序列选择信息进行检测，而无需对每个UE单独进行指示。
图8示出了UE和基站及其他UE信息交互的另一个示例。如图8所示，其中的一个或多个UE可以首先使用某一可用的资源对应的操作序列进行操作，并向基站发送上行数据，随后，基站可以通过其接收的与该操作相关的上行数据，来获取这一个或多个UE相应的操作序列占用信息，并发送序列选择信息和/或操作序列占用信息。当基站发送操作序列占用信息后，可以使得其他UE避免使用已被占用的操作序列进行操作，从而避免例如非正交多址接入(Non-OrthogonalMultiple Access，NOMA)下的资源冲突。其中所述操作序列占用信息可以包含在所述序列选择信息中进行发送，也可以单独进行发送。在此过程中，基站同样可以在此操作执行之前的特定时间范围内发送序列选择信息和/或操作序列占用信息，以保证各个UE在执行此操作之前能够获取所需的信息，并进一步确定相应的操作序列。在分别确定各自的操作序列后，UE和其他UE将分别发送上行数据。所述序列选择信息和/或操作序列占用信息可以周期性或非周期性地发送。在一个示例中，基站可以将序列选择信息和/或操作序列占用信息与其他配置信息(例如调制与编码策略(Modulation and Coding Scheme，MCS))共同发出，以节约系统的信令资源。在另一个示例中，基站可以在公共搜索空间(common search space)中通过使用GC-PDCCH(物理下行控制信道，Physical Downlink Control Channel)或其他DCI来发送所述序列选择信息和/或操作序列占用信息，以使得每个UE都可以对其进行检测，而无需对每个UE单独进行指示。
当所述基站通过DCI来发送所述序列选择信息和/或操作序列占用信息时，可以通过现有的DCI格式进行发送，也可以利用新的DCI格式进行发送。例如，基站可以利用一个或多个现有的DCI发送：通过GC-PCDDH中的DCI format 2_0、DCI format 2_1、DCI format 2_2、DCI format 2_3发送；通过公共搜索空间中(DCI 0_0、DCI 0_1)利用不同的无线网络临时标识(Radio Network Tempory Identity，RNTI)加扰方式进行发送，利用预留比特位(如MCS中的表1/3的索引29-31、其他MCS表格的索引28-31)进行发送，或者利用“上行导频参考信号(Sounding Reference Signal，SRS)资源指示符”字段、“预编码信息和层数”字段、“天线端口”字段等方式发送。再例如，基站还可以利用4-9位新的DCI格式进行发送。在上述各种DCI的发送方式中，基站可以利用各种取值范围来分别指示例如解调参考信号的起始索引、分组数量或多址签名序列的起始索引、分组数量等参数。例如，可以将解调参考信号的起始索引取值定义为0-15，分组数量取值定义为0-3；或将多址签名序列的起始索引取值定义为0-31，分组数量取值定义为0-7。上述对DCI格式和相关参数取值范围的定义仅为示例，在实际应用中，可以采用任何DCI格式和取值方式，在此不做限制。
利用本发明的上述用户设备，能够根据基础序列表和基站指示的与用户设备要执行的操作相关的序列选择信息，来确定与所述操作相关的所述基础序列表的子集。从而，可以不需要针对每种操作分别设置序列表，并且可以利用针对用户设备的相同或不同操作灵活确定操作序列，提高了用户设备序列选择的灵活性，减少了系统开销，提高了无线通信系统的性能。另外，通过对用户设备各种操作对应的基础序列表的子集的限制，还可以尽量避免例如NOMA下的资源冲突，提高信息传输的有效性。
以下参照图11来描述根据本申请实施例的基站。该基站可以执行上述由基站执行的方法。由于该基站的操作与上文所述的方法的各个步骤基本相同，因此在这里只对其进行简要的描述，而省略对相同内容的重复描述。
如图11所示，基站1100包括控制单元1110和发送单元1120。需要认识到，图11仅示出与本申请的实施例相关的部件，而省略了其他部件，但这只是示意性的，根据需要，基站1100可以包括其他部件。
控制单元1110确定与用户设备要执行的操作相关的序列选择信息。
所述序列选择信息用于UE从基础序列表中确定用于所述操作的操作序列。具体地，UE可以首先根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；随后，从所述基础序列表的子集中，确定用于所述操作的操作序列。
在一个实施方式中，所述基础序列表可以预先分别存储在UE侧和基站侧两侧。例如，所述基础序列表可以预先通过相关标准设置，并分别存储在UE和基站两侧。在另一个实施方式中，所述基础序列表也可以通过信令在基站和UE之间进行交互，例如，基站可以通过高层(如MAC层)信令或DCI等发送相关基础序列表的设置信息或多个基础序列表的选择信息，以告知UE当前使用的基础序列表。
在一个实施方式中，所述基础序列表可以分别包括基础序列索引和与基础序列索引相对应的基础序列。图3示出了根据本发明实施例的基础序列表的示意图。如图3所示，基础序列表可以包含基础序列索引为0-7的8个基础序列，分别为s0-s8。所述基础序列表可以用于UE从中确定一种或多种操作所需的操作序列。图3中的基础序列表的表示方式，及基础序列索引和基础序列一一对应的设置方式均仅为示例。在实际应用中，可以采用任何基础序列表的设置方式，所包含的基础序列的数量也不做限制。
根据本发明一个实施方式，用户设备要执行的操作可以包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。根据本发明另一个实施方式，所述序列选择信息可以包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
发送单元1120发送所述序列选择信息，以使所述用户设备根据包括至少两个序列的基础序列表以及所述序列选择信息，确定用于所述操作的操作序列。
在一个示例中，发送单元1120可以通过高层信令(例如无线资源控制(Radio Resource Control，RRC)信令)指示与UE要执行的操作相关的序列选择信息；在另一个示例中，发送单元1120可以通过例如下行控制信息(Downlink Control Information，DCI)来指示与UE要执行的操作相关的序列选择信息。在具体实现过程中，可选地，发送单元1120可以同时指示UE 要执行的操作类型，以及与操作相对应的序列选择信息，所述操作可以为一个，也可以为多个。例如，发送单元1120可以通过显式方式(如DCI中一个或多个特定的比特)指示UE要执行的操作类型及对应的序列选择信息；再例如，发送单元1120也可以通过隐式方式(如通过所述序列选择信息所在的DCI中的特定位置)指示UE要执行的操作类型及对应的序列选择信息，如利用DCI中的第一位置指示操作类型为MA签名添加及相应的MA序列，而利用DCI中的第二位置指示操作类型为DMRS发送及相应的DMRS。
UE在接收到基站发送的序列选择信息之后，如前所述，可以首先根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；随后从所述基础序列表的子集中，确定用于所述操作的操作序列。所述基础序列表的子集可以为基础序列表本身，也可以为基础序列表的其中一部分。
在一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。由于UE已获知基础序列表的内容，因此，上述基础序列数量M的取值可以根据UE所获知的基础序列表直接得到。例如，当所述操作为前导码发送时，可将与前导码发送相关的基础序列表的子集表示为：mod(i+j,M)，其中j＝0,1,…,m-1。以图3所示的基础序列表为例，当基础序列数量M＝8，用于序列选择的起始索引i＝6，所述基础序列表的子集中的序列数量m＝4时，供前导码序列选择的基础序列表的子集可以表示为{s6,s7,s0,s1}。这一示例中的用于序列选择的起始索引i＝6也可以理解为基础序列表的子集中起始的序列在基础序列表中的索引值。
在另一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i、对基础序列表进行分组的分组数量K和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。同样地，上述基础序列数量M的取值可以根据UE所获知的基础序列表直接得到。可选地，对基础序列表进行分组的方式可以是预设的分组方式，也可以通过基站将特定的分组方式告知UE，在此不做限制。在一个示例中，当所述操 作为多址签名时，可将与多址签名相关的基础序列表的子集表示为：mod(i+j,M/K)，其中j＝0,1,…,m-1。在图3所示的基础序列表的示例中，当基础序列数量M＝8，用于序列选择的起始索引i＝6，对基础序列表进行分组的分组数量K＝2，所述基础序列表的子集中的序列数量m＝4时，供多址签名序列选择的基础序列表的子集可以表示为{s2,s3,s0,s1}。这一示例中的用于序列选择的起始索引i＝6也可以理解为对基础序列表的子集进行计算的起始值。在这一示例中，基础序列表的子集可以从基础序列表的一个或多个分组中获得；当然，基础序列表的子集也可以与基础序列表的一个或多个分组完全相同。
在另一个示例中，UE可以根据所述基础序列表和基础序列数量M，以及包含用于序列选择的起始索引i、对基础序列表进行分组的分组数量K、分组索引L和所述基础序列表的子集中的序列数量m的序列选择信息，来确定与所述操作相关的所述基础序列表的子集，并进一步确定所述子集中的操作序列。与前述相同，基础序列数量M的取值可以根据UE所获知的基础序列表直接得到，对基础序列表进行分组的方式可以是预设的分组方式，也可以通过基站将特定的分组方式告知UE，在此不做限制。例如，当所述操作为解调参考信号发送时，可将与解调参考信号发送相关的基础序列表的子集表示为：L×M/K+mod(i+j,M/K)，其中j＝0,1,…,m-1。在图3所示的基础序列表的示例中，当基础序列数量M＝8，用于序列选择的起始索引i＝6，对基础序列表进行分组的分组数量K＝2，分组索引L＝1，所述基础序列表的子集中的序列数量m＝4时，供解调参考信号发送的基础序列表的子集可以表示为{s6,s7,s4,s5}。同样，在这一示例中，基础序列表的子集可以从基础序列表的一个或多个分组中获得；当然，基础序列表的子集也可以与基础序列表的一个或多个分组完全相同。
在另一个示例中，UE可以根据所述基础序列表和包含扩展因子SF(spreading factor)的序列选择信息，来确定与扩频相关的所述基础序列表的子集，用于指示扩频时所采用的扩展序列。图4示出了基础序列表中，扩展因子为SF＝4的基础序列表的子集的示例。图4所示的表格为基础序列表，而方框内为扩展因子SF＝4的基础序列表的子集。例如，当序列选择信息包括SF＝4，起始索引i＝2时，基础序列表的子集可以表示为{s20,s21,s22,s23}。图5示出了基础序列表中，扩展因子为SF＝2的基础序列表的子集的示例。 图5所示的表格为基础序列表，而两个方框内分别为扩展因子SF＝2的基础序列表的子集。例如，当序列选择信息包括SF＝2，起始索引i＝5时，基础序列表的子集可以表示为{s50,s51}，或者可以表示为{s52,s53}。根据图4和图5，可知在基础序列表相同的情况下，可以根据不同扩展因子在基础序列表中不同的嵌套方式，来确定不同的基础序列表的子集。在具体的实施过程中，扩展序列的长度也可以根据扩展因子的不同而变化。图6示出了基础序列表中，扩展因子分别为SF＝4和SF＝2的基础序列表的子集的示例。如图6可知，当扩展因子为SF＝4时，基础序列表的子集可以为例如基础序列索引i＝1时的{1,-1,1,-1}。而当扩展因子为SF＝2时，基础序列表的子集可以为例如基础序列索引i＝1时的{1,-1}。
以上描述了UE根据所述基础序列表和所述序列选择信息确定基础序列表的子集的各种示例。在本发明一个实施方式中，当传输类型或传输场景发生变化，或者UE的数量发生变化时，基站可以对UE进行重配，并针对UE确定的所在的基础序列表的子集及其操作序列进行更新。具体地，在对所述用户设备重配置时，发送单元1120可以发送更新的序列选择信息，并使得UE根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。可选地，UE可以首先根据基础序列表和所述更新的序列选择信息来确定更新的基础序列表的子集，然后从中确定更新的操作序列。另外，发送单元1120同样可以通过高层信令(例如无线资源控制(Radio Resource Control，RRC)信令)或通过例如下行控制信息(Downlink Control Information，DCI)来指示更新的序列选择信息。所述序列选择信息也依然可以包括：用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。可选地，更新的序列选择信息可以是上述参数中一个或多个的更新值。例如，更新的序列选择信息可以通过添加偏移值offset将用于序列选择的起始索引i更新为i+offset，和/或将所述基础序列表的子集中的序列数量m更新为m+offset。再例如，更新的序列选择信息也可以将对基础序列表进行分组的分组数量K或分组索引L分别修改为K+1或L+2。以上针对序列选择信息的更新方式仅为示例，在实际应用中，可以采用任意序列选择信息的更新方式，在此不做限制。
在一个示例中，当UE从所述基础序列表的子集(或更新后的基础序列 表的子集)中确定用于所述操作的操作序列时，可以在根据基础序列表和序列选择信息确定的子集中，任意选择其中的一个序列作为用于所述操作的操作序列。在另一个示例中，为了避免与其他UE的资源冲突，UE也可以首先接收基站的发送单元1120发送的与其他UE占用的资源(如利用操作序列表示)相关的操作序列占用信息，并根据所述操作序列占用信息，确定用于所述操作的操作序列。可选地，所述操作序列占用信息可以包含在所述序列选择信息中一并进行发送，也可以单独进行发送。也即所述操作序列占用信息可以为所述序列选择信息的一部分，也可以独立于所述序列选择信息。其中，基站可以通过其接收的其他UE通过某个操作发送的上行数据，来获取其他UE所使用的操作序列，并获取相应的操作序列占用信息，以告知此UE。例如，当UE确定的基础序列表的子集为{s2,s3,s0,s1}，而其他UE的操作序列占用信息包括{s2}时，可以使得此UE可以在{s3,s0,s1}中选择用于操作的操作序列。
图7示出了UE和基站及其他UE信息交互的一个示例。如图7所示，基站可以向UE和其他UE同时发送用于指示与某个操作相关的序列选择信息，在接收到序列选择信息之后，UE和其他UE可以分别根据基础序列表和序列选择信息分别来确定基础序列表的子集，并进一步确定各自的用于此操作的操作序列。在此过程中，基站可以在此操作执行之前的特定时间范围内发送序列选择信息，以保证各个UE在执行此操作之前能够获取序列选择信息，并进一步确定相应的操作序列。在分别确定各自的操作序列后，UE和其他UE将分别执行相应的操作，并发送上行数据。所述序列选择信息可以周期性或非周期性地发送。在一个示例中，基站可以将序列选择信息与其他配置信息(例如调制与编码方案(Modulation and Coding Scheme，MCS))共同发出，以节约系统的信令资源。在另一个示例中，基站可以在公共搜索空间(common search space)中通过使用GC-PDCCH(物理下行控制信道，Physical Downlink Control Channel)或其他DCI来发送所述序列选择信息，以使得每个UE都可以对序列选择信息进行检测，而无需对每个UE单独进行指示。
图8示出了UE和基站及其他UE信息交互的另一个示例。如图8所示，其中的一个或多个UE可以首先使用某一可用的资源对应的操作序列进行操 作，并向基站发送上行数据，随后，基站可以通过其接收的与该操作相关的上行数据，来获取这一个或多个UE相应的操作序列占用信息，并发送序列选择信息和/或操作序列占用信息。当基站发送操作序列占用信息后，可以使得其他UE避免使用已被占用的操作序列进行操作，从而避免例如非正交多址接入(Non-OrthogonalMultiple Access，NOMA)下的资源冲突。其中所述操作序列占用信息可以包含在所述序列选择信息中进行发送，也可以单独进行发送。在此过程中，基站同样可以在此操作执行之前的特定时间范围内发送序列选择信息和/或操作序列占用信息，以保证各个UE在执行此操作之前能够获取所需的信息，并进一步确定相应的操作序列。在分别确定各自的操作序列后，UE和其他UE将分别发送上行数据。所述序列选择信息和/或操作序列占用信息可以周期性或非周期性地发送。在一个示例中，基站可以将序列选择信息和/或操作序列占用信息与其他配置信息(例如调制与编码策略(Modulation and Coding Scheme，MCS))共同发出，以节约系统的信令资源。在另一个示例中，基站可以在公共搜索空间(common search space)中通过使用GC-PDCCH(物理下行控制信道，Physical Downlink Control Channel)或其他DCI来发送所述序列选择信息和/或操作序列占用信息，以使得每个UE都可以对其进行检测，而无需对每个UE单独进行指示。
当所述基站的发送单元1120通过DCI来发送所述序列选择信息和/或操作序列占用信息时，可以通过现有的DCI格式进行发送，也可以利用新的DCI格式进行发送。例如，发送单元1120可以利用一个或多个现有的DCI发送：通过GC-PCDDH中的DCI format 2_0、DCI format 2_1、DCI format 2_2、DCI format 2_3发送；通过公共搜索空间中(DCI 0_0、DCI 0_1)利用不同的无线网络临时标识(Radio Network Tempory Identity，RNTI)加扰方式进行发送，利用预留比特位(如MCS中的表1/3的索引29-31、其他MCS表格的索引28-31)进行发送，或者利用“上行导频参考信号(Sounding Reference Signal，SRS)资源指示符”字段、“预编码信息和层数”字段、“天线端口”字段等方式发送。再例如，发送单元1120还可以利用4-9位新的DCI格式进行发送。在上述各种DCI的发送方式中，发送单元1120可以利用各种取值范围来分别指示例如解调参考信号的起始索引、分组数量或多址签名序列的起始索引、分组数量等参数。例如，可以将解调参考信号的起始索引取值 定义为0-15，分组数量取值定义为0-3；或将多址签名序列的起始索引取值定义为0-31，分组数量取值定义为0-7。上述对DCI格式和相关参数取值范围的定义仅为示例，在实际应用中，可以采用任何DCI格式和取值方式，在此不做限制。
利用本发明的上述基站，能够使得用户设备根据基础序列表和与用户设备要执行的操作相关的序列选择信息，来确定与所述操作相关的所述基础序列表的子集。从而，可以不需要针对每种操作分别提供序列表，并且可以针对用户设备的相同或不同操作灵活确定操作序列，提高了用户设备序列选择的灵活性，减少了系统开销，提高了无线通信系统的性能。另外，通过对用户设备各种操作对应的基础序列表的子集的限制，还可以尽量避免例如NOMA下的资源冲突，提高信息传输的有效性。
<硬件结构>
本发明的一实施方式中的发送设备和接收设备等可以作为执行本发明的无线通信方法的处理的计算机来发挥功能。图12是示出本发明的一实施方式所涉及的用户设备和基站的硬件结构的一例的图。上述的用户设备1000和基站1100可以作为在物理上包括处理器1210、内存1220、存储器1230、通信装置1240、输入装置1250、输出装置1260、总线1270等的计算机装置来构成。
另外，在以下的说明中，“装置”这样的文字也可替换为电路、设备、单元等。用户设备1000和基站1100的硬件结构可以包括一个或多个图中所示的各装置，也可以不包括部分装置。
例如，处理器1210仅图示出一个，但也可以为多个处理器。此外，可以通过一个处理器来执行处理，也可以通过一个以上的处理器同时、依次、或采用其它方法来执行处理。另外，处理器1210可以通过一个以上的芯片来安装。
用户设备1000和基站1100中的各功能例如通过如下方式实现：通过将规定的软件(程序)读入到处理器1210、内存1220等硬件上，从而使处理器1210进行运算，对由通信装置1240进行的通信进行控制，并对内存1220和存储器1230中的数据的读出和/或写入进行控制。
处理器1210例如使操作系统进行工作从而对计算机整体进行控制。处 理器1210可以由包括与周边装置的接口、控制装置、运算装置、寄存器等的中央处理器(CPU，Central Processing Unit)构成。
此外，处理器1210将程序(程序代码)、软件模块、数据等从存储器1230和/或通信装置1240读出到内存1220，并根据它们执行各种处理。作为程序，可以采用使计算机执行在上述实施方式中说明的动作中的至少一部分的程序。
内存1220是计算机可读取记录介质，例如可以由只读存储器(ROM，ReadOnlyMemory)、可编程只读存储器(EPROM，ErasableProgrammableROM)、电可编程只读存储器(EEPROM，ElectricallyEPROM)、随机存取存储器(RAM，RandomAccessMemory)、其它适当的存储介质中的至少一个来构成。内存1220也可以称为寄存器、高速缓存、主存储器(主存储装置)等。内存1220可以保存用于实施本发明的一实施方式所涉及的无线通信方法的可执行程序(程序代码)、软件模块等。
存储器1230是计算机可读取记录介质，例如可以由软磁盘(flexible disk)、软(注册商标)盘(floppy disk)、磁光盘(例如，只读光盘(CD-ROM(CompactDiscROM)等)、数字通用光盘、蓝光(Blu-ray，注册商标)光盘)、可移动磁盘、硬盘驱动器、智能卡、闪存设备(例如，卡、棒(stick)、密钥驱动器(key driver))、磁条、数据库、服务器、其它适当的存储介质中的至少一个来构成。存储器1230也可以称为辅助存储装置。
通信装置1240是用于通过有线和/或无线网络进行计算机间的通信的硬件(发送接收设备)，例如也称为网络设备、网络控制器、网卡、通信模块等。通信装置1240为了实现例如频分双工(FDD，FrequencyDivisionDuplex)和/或时分双工(TDD，TimeDivisionDuplex)，可以包括高频开关、双工器、滤波器、频率合成器等。
输入装置1250是接受来自外部的输入的输入设备(例如，键盘、鼠标、麦克风、开关、按钮、传感器等)。输出装置1260是实施向外部的输出的输出设备(例如，显示器、扬声器、发光二极管(LED，LightEmittingDiode)灯等)。另外，输入装置1250和输出装置1260也可以为一体的结构(例如触控面板)。
此外，处理器1210、内存1220等各装置通过用于对信息进行通信的总线1270连接。总线1270可以由单一的总线构成，也可以由装置间不同的总线构成。
此外，用户设备1000和基站1100可以包括微处理器、数字信号处理器(DSP，DigitalSignalProcessor)、专用集成电路(ASIC，ApplicationSpecificIntegratedCircuit)、可编程逻辑器件(PLD，ProgrammableLogicDevice)、现场可编程门阵列(FPGA，FieldProgrammableGateArray)等硬件，可以通过该硬件来实现各功能块的部分或全部。例如，处理器1210可以通过这些硬件中的至少一个来安装。
(变形例)
另外，关于本说明书中说明的用语和/或对本说明书进行理解所需的用语，可以与具有相同或类似含义的用语进行互换。例如，信道和/或码元也可以为信号(信令)。此外，信号也可以为消息。参考信号也可以简称为RS(ReferenceSignal)，根据所适用的标准，也可以称为导频(Pilot)、导频信号等。此外，分量载波(CC，ComponentCarrier)也可以称为小区、频率载波、载波频率等。
此外，无线帧在时域中可以由一个或多个期间(帧)构成。构成无线帧的该一个或多个期间(帧)中的每一个也可以称为子帧。进而，子帧在时域中可以由一个或多个时隙构成。子帧可以是不依赖于参数配置(numerology)的固定的时间长度(例如1ms)。
进而，时隙在时域中可以由一个或多个码元(正交频分复用(OFDM，OrthogonalFrequencyDivisionMultiplexing)码元、单载波频分多址(SC-FDMA，SingleCarrierFrequencyDivisionMultipleAccess)码元等)构成。此外，时隙也可以是基于参数配置的时间单元。此外，时隙还可以包括多个微时隙。各微时隙在时域中可以由一个或多个码元构成。此外，微时隙也可以称为子时隙。
无线帧、子帧、时隙、微时隙以及码元均表示传输信号时的时间单元。无线帧、子帧、时隙、微时隙以及码元也可以使用各自对应的其它名称。例如，一个子帧可以被称为传输时间间隔(TTI，TransmissionTimeInterval)，多个连续的子帧也可以被称为TTI，一个时隙或一个微时隙也可以被称为 TTI。也就是说，子帧和/或TTI可以是现有的LTE中的子帧(1ms)，也可以是短于1ms的期间(例如1～13个码元)，还可以是长于1ms的期间。另外，表示TTI的单元也可以称为时隙、微时隙等而非子帧。
在此，TTI例如是指无线通信中调度的最小时间单元。例如，在LTE系统中，无线基站对各用户终端进行以TTI为单位分配无线资源(在各用户终端中能够使用的频带宽度、发射功率等)的调度。另外，TTI的定义不限于此。
TTI可以是经过信道编码的数据包(传输块)、码块、和/或码字的发送时间单元，也可以是调度、链路适配等的处理单元。另外，在给出TTI时，实际上与传输块、码块、和/或码字映射的时间区间(例如码元数)也可以短于该TTI。
另外，一个时隙或一个微时隙被称为TTI时，一个以上的TTI(即一个以上的时隙或一个以上的微时隙)也可以成为调度的最小时间单元。此外，构成该调度的最小时间单元的时隙数(微时隙数)可以受到控制。
具有1ms时间长度的TTI也可以称为常规TTI(LTE Rel.8-12中的TTI)、标准TTI、长TTI、常规子帧、标准子帧、或长子帧等。短于常规TTI的TTI也可以称为压缩TTI、短TTI、部分TTI(partial或fractional TTI)、压缩子帧、短子帧、微时隙、或子时隙等。
另外，长TTI(例如常规TTI、子帧等)也可以用具有超过1ms的时间长度的TTI来替换，短TTI(例如压缩TTI等)也可以用具有比长TTI的TTI长度短且1ms以上的TTI长度的TTI来替换。
资源块(RB，ResourceBlock)是时域和频域的资源分配单元，在频域中，可以包括一个或多个连续的副载波(子载波(subcarrier))。此外，RB在时域中可以包括一个或多个码元，也可以为一个时隙、一个微时隙、一个子帧或一个TTI的长度。一个TTI、一个子帧可以分别由一个或多个资源块构成。另外，一个或多个RB也可以称为物理资源块(PRB，PhysicalRB)、子载波组(SCG，Sub-CarrierGroup)、资源单元组(REG，Resource ElementGroup)、PRG对、RB对等。
此外，资源块也可以由一个或多个资源单元(RE，ResourceElement)构成。例如，一个RE可以是一个子载波和一个码元的无线资源区域。
另外，上述的无线帧、子帧、时隙、微时隙以及码元等的结构仅仅为示例。例如，无线帧中包括的子帧数、每个子帧或无线帧的时隙数、时隙内包括的微时隙数、时隙或微时隙中包括的码元和RB的数目、RB中包括的子载波数、以及TTI内的码元数、码元长度、循环前缀(CP，Cyclic Prefix)长度等的结构可以进行各种各样的变更。
此外，本说明书中说明的信息、参数等可以用绝对值来表示，也可以用与规定值的相对值来表示，还可以用对应的其它信息来表示。例如，无线资源可以通过规定的索引来指示。进一步地，使用这些参数的公式等也可以与本说明书中明确公开的不同。
在本说明书中用于参数等的名称在任何方面都并非限定性的。例如，各种各样的信道(物理上行链路控制信道(PUCCH，PhysicalUplink ControlChannel)、物理下行链路控制信道(PDCCH，PhysicalDownlink ControlChannel)等)和信息单元可以通过任何适当的名称来识别，因此为这些各种各样的信道和信息单元所分配的各种各样的名称在任何方面都并非限定性的。
本说明书中说明的信息、信号等可以使用各种各样不同技术中的任意一种来表示。例如，在上述的全部说明中可能提及的数据、命令、指令、信息、信号、比特、码元、芯片等可以通过电压、电流、电磁波、磁场或磁性粒子、光场或光子、或者它们的任意组合来表示。
此外，信息、信号等可以从上层向下层、和/或从下层向上层输出。信息、信号等可以经由多个网络节点进行输入或输出。
输入或输出的信息、信号等可以保存在特定的场所(例如内存)，也可以通过管理表进行管理。输入或输出的信息、信号等可以被覆盖、更新或补充。输出的信息、信号等可以被删除。输入的信息、信号等可以被发往其它装置。
信息的通知并不限于本说明书中说明的方式/实施方式，也可以通过其它方法进行。例如，信息的通知可以通过物理层信令(例如，下行链路控制信息(DCI，DownlinkControlInformation)、上行链路控制信息(UCI，UplinkControlInformation))、上层信令(例如，无线资源控制(RRC，RadioResourceControl)信令、广播信息(主信息块(MIB， MasterInformationBlock)、系统信息块(SIB，SystemInformationBlock)等)、媒体存取控制(MAC，MediumAccessControl)信令)、其它信号或者它们的组合来实施。
另外，物理层信令也可以称为L1/L2(第1层/第2层)控制信息(L1/L2控制信号)、L1控制信息(L1控制信号)等。此外，RRC信令也可以称为RRC消息，例如可以为RRC连接建立(RRC Connection Setup)消息、RRC连接重配置(RRC Connection Reconfiguration)消息等。此外，MAC信令例如可以通过MAC控制单元(MAC CE(Control Element))来通知。
此外，规定信息的通知(例如，“为X”的通知)并不限于显式地进行，也可以隐式地(例如，通过不进行该规定信息的通知，或者通过其它信息的通知)进行。
关于判定，可以通过由1比特表示的值(0或1)来进行，也可以通过由真(true)或假(false)表示的真假值(布尔值)来进行，还可以通过数值的比较(例如与规定值的比较)来进行。
软件无论被称为软件、固件、中间件、微代码、硬件描述语言，还是以其它名称来称呼，都应宽泛地解释为是指命令、命令集、代码、代码段、程序代码、程序、子程序、软件模块、应用程序、软件应用程序、软件包、例程、子例程、对象、可执行文件、执行线程、步骤、功能等。
此外，软件、命令、信息等可以经由传输介质被发送或接收。例如，当使用有线技术(同轴电缆、光缆、双绞线、数字用户线路(DSL，DigitalSubscriberLine)等)和/或无线技术(红外线、微波等)从网站、服务器、或其它远程资源发送软件时，这些有线技术和/或无线技术包括在传输介质的定义内。
本说明书中使用的“系统”和“网络”这样的用语可以互换使用。
在本说明书中，“无线基站(BS，BaseStation)”、“无线基站”、“eNB”、“gNB”、“小区”、“扇区”、“小区组”、“载波”以及“分量载波”这样的用语可以互换使用。无线基站有时也以固定台(fixedstation)、NodeB、eNodeB(eNB)、接入点(accesspoint)、发送点、接收点、毫微微小区、小小区等用语来称呼。
无线基站可以容纳一个或多个(例如三个)小区(也称为扇区)。当无线基站容纳多个小区时，无线基站的整个覆盖区域可以划分为多个更小的区 域，每个更小的区域也可以通过无线基站子系统(例如，室内用小型无线基站(射频拉远头(RRH，RemoteRadioHead)))来提供通信服务。“小区”或“扇区”这样的用语是指在该覆盖中进行通信服务的无线基站和/或无线基站子系统的覆盖区域的一部分或整体。
在本说明书中，“移动台(MS，MobileStation)”、“用户终端(userterminal)”、“用户装置(UE，UserEquipment)”以及“终端”这样的用语可以互换使用。无线基站有时也以固定台(fixedstation)、NodeB、eNodeB(eNB)、接入点(accesspoint)、发送点、接收点、毫微微小区、小小区等用语来称呼。
移动台有时也被本领域技术人员以用户台、移动单元、用户单元、无线单元、远程单元、移动设备、无线设备、无线通信设备、远程设备、移动用户台、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、客户端或者若干其它适当的用语来称呼。
此外，本说明书中的用户设备1000和基站1100均可以用无线基站或用户终端来替换。
在本说明书中，设为通过无线基站进行的特定动作根据情况有时也通过其上级节点(uppernode)来进行。显然，在具有无线基站的由一个或多个网络节点(networknodes)构成的网络中，为了与终端间的通信而进行的各种各样的动作可以通过无线基站、除无线基站之外的一个以上的网络节点(可以考虑例如移动管理实体(MME，MobilityManagementEntity)、服务网关(S-GW，Serving-Gateway)等，但不限于此)、或者它们的组合来进行。
本说明书中说明的各方式/实施方式可以单独使用，也可以组合使用，还可以在执行过程中进行切换来使用。此外，本说明书中说明的各方式/实施方式的处理步骤、序列、流程图等只要没有矛盾，就可以更换顺序。例如，关于本说明书中说明的方法，以示例性的顺序给出了各种各样的步骤单元，而并不限定于给出的特定顺序。
本说明书中说明的各方式/实施方式可以应用于利用长期演进(LTE，LongTermEvolution)、高级长期演进(LTE-A，LTE-Advanced)、超越长期演进(LTE-B，LTE-Beyond)、超级第3代移动通信系统(SUPER 3G)、高级国际移动通信(IMT-Advanced)、第4代移动通信系统(4G，4th generation mobile communication system)、第5代移动通信系统(5G，5th generation  mobile communication system)、未来无线接入(FRA，Future Radio Access)、新无线接入技术(New-RAT，Radio Access Technology)、新无线(NR，New Radio)、新无线接入(NX，New radio access)、新一代无线接入(FX，Future generation radio access)、全球移动通信系统(GSM(注册商标)，Global System for Mobile communications)、码分多址接入2000(CDMA2000)、超级移动宽带(UMB，Ultra Mobile Broadband)、IEEE 802.11(Wi-Fi(注册商标))、IEEE 802.16(WiMAX(注册商标))、IEEE 802.20、超宽带(UWB，Ultra-WideBand)、蓝牙(Bluetooth(注册商标))、其它适当的无线通信方法的系统和/或基于它们而扩展的下一代系统。
本说明书中使用的“根据”这样的记载，只要未在其它段落中明确记载，则并不意味着“仅根据”。换言之，“根据”这样的记载是指“仅根据”和“至少根据”这两者。
本说明书中使用的对使用“第一”、“第二”等名称的单元的任何参照，均非全面限定这些单元的数量或顺序。这些名称可以作为区别两个以上单元的便利方法而在本说明书中使用。因此，第一单元和第二单元的参照并不意味着仅可采用两个单元或者第一单元必须以若干形式占先于第二单元。
本说明书中使用的“判断(确定)(determining)”这样的用语有时包含多种多样的动作。例如，关于“判断(确定)”，可以将计算(calculating)、推算(computing)、处理(processing)、推导(deriving)、调查(investigating)、搜索(lookingup)(例如表、数据库、或其它数据结构中的搜索)、确认(ascertaining)等视为是进行“判断(确定)”。此外，关于“判断(确定)”，也可以将接收(receiving)(例如接收信息)、发送(transmitting)(例如发送信息)、输入(input)、输出(output)、存取(accessing)(例如存取内存中的数据)等视为是进行“判断(确定)”。此外，关于“判断(确定)”，还可以将解决(resolving)、选择(selecting)、选定(choosing)、建立(establishing)、比较(comparing)等视为是进行“判断(确定)”。也就是说，关于“判断(确定)”，可以将若干动作视为是进行“判断(确定)”。
本说明书中使用的“连接的(connected)”、“结合的(coupled)”这样的用语或者它们的任何变形是指两个或两个以上单元间的直接的或间接的任何连接或结合，可以包括以下情况：在相互“连接”或“结合”的两个单元间， 存在一个或一个以上的中间单元。单元间的结合或连接可以是物理上的，也可以是逻辑上的，或者还可以是两者的组合。例如，“连接”也可以替换为“接入”。在本说明书中使用时，可以认为两个单元是通过使用一个或一个以上的电线、线缆、和/或印刷电气连接，以及作为若干非限定性且非穷尽性的示例，通过使用具有射频区域、微波区域、和/或光(可见光及不可见光这两者)区域的波长的电磁能等，被相互“连接”或“结合”。
在本说明书或权利要求书中使用“包括(including)”、“包含(comprising)”、以及它们的变形时，这些用语与用语“具备”同样是开放式的。进一步地，在本说明书或权利要求书中使用的用语“或(or)”并非是异或。
以上对本发明进行了详细说明，但对于本领域技术人员而言，显然，本发明并非限定于本说明书中说明的实施方式。本发明在不脱离由权利要求书的记载所确定的本发明的宗旨和范围的前提下，可以作为修改和变更方式来实施。因此，本说明书的记载是以示例说明为目的，对本发明而言并非具有任何限制性的意义。

Claims (13)

  1. 一种用户设备，包括：
    获取单元，配置为获取基础序列表，所述基础序列表包括至少两个序列；
    接收单元，配置为接收与用户设备要执行的操作相关的序列选择信息；
    控制单元，配置为根据所述基础序列表和所述序列选择信息，确定用于所述操作的操作序列。
  2. 如权利要求1所述的用户设备，其中，
    所述控制单元根据所述基础序列表和所述序列选择信息，确定与所述操作相关的所述基础序列表的子集；
    从所述基础序列表的子集中，确定用于所述操作的操作序列。
  3. 如权利要求1所述的用户设备，其中，
    所述操作包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。
  4. 如权利要求1所述的用户设备，其中，所述序列选择信息包括：
    用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
  5. 如权利要求1所述的用户设备，其中，
    所述接收单元在对所述用户设备重配置时，接收更新的序列选择信息；
    所述控制单元根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。
  6. 如权利要求1-5中任一项所述的用户设备，其中，
    所述接收单元接收基站发送的操作序列占用信息；
    所述控制单元根据所述操作序列占用信息，确定用于所述操作的操作序列。
  7. 一种基站，包括：
    控制单元，配置为确定与用户设备要执行的操作相关的序列选择信息；
    发送单元，配置为发送所述序列选择信息，以使所述用户设备根据包括至少两个序列的基础序列表以及所述序列选择信息，确定用于所述操作的操作序列。
  8. 如权利要求7所述的基站，其中，
    所述操作包括前导码发送、多址签名添加、解调参考信号发送、扩频中的一个或多个。
  9. 如权利要求7所述的基站，其中，所述序列选择信息包括：
    用于序列选择的起始索引、对基础序列表进行分组的分组数量、分组索引、所述基础序列表的子集中的序列数量、扩展因子中的一个或多个。
  10. 如权利要求7所述的基站，其中，
    所述发送单元在对所述用户设备重配置时，发送更新的序列选择信息，以使所述用户设备根据所述基础序列表和所述更新的序列选择信息，确定更新的操作序列。
  11. 如权利要求7-10中任一项所述的基站，其中，
    所述基站还包括：获取单元，配置为获取用户设备用于所述操作的操作序列；
    所述发送单元根据所述操作序列发送操作序列占用信息，以使其他用户设备根据所述操作序列占用信息，确定自身用于所述操作的操作序列。
  12. 一种由用户设备执行的方法，所述方法包括：
    获取基础序列表，所述基础序列表包括至少两个序列；
    接收与用户设备要执行的操作相关的序列选择信息；
    根据所述基础序列表和所述序列选择信息，确定用于所述操作的操作序列。
  13. 一种由基站执行的方法，所述方法包括：
    确定与用户设备要执行的操作相关的序列选择信息；
    发送所述序列选择信息，以使所述用户设备根据包括至少两个序列的基础序列表以及所述序列选择信息，确定用于所述操作的操作序列。
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