CN116015587A - User equipment, method and device in base station for wireless communication - Google Patents

User equipment, method and device in base station for wireless communication Download PDF

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Publication number
CN116015587A
CN116015587A CN202310009511.9A CN202310009511A CN116015587A CN 116015587 A CN116015587 A CN 116015587A CN 202310009511 A CN202310009511 A CN 202310009511A CN 116015587 A CN116015587 A CN 116015587A
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China
Prior art keywords
time
multiple access
wireless signal
type
information
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CN202310009511.9A
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Chinese (zh)
Inventor
蒋琦
张晓博
杨林
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Priority to CN202310009511.9A priority Critical patent/CN116015587A/en
Publication of CN116015587A publication Critical patent/CN116015587A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—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
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method and apparatus in a user equipment, base station, used for wireless communication are disclosed. The user equipment receives the first information and sends a first wireless signal; the first information is used to determine a first set of offsets; the time domain resource occupied by the first wireless signal starts from a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset belongs to the first offset set; the second time is the starting time of the first time window; the first set of offsets is associated with a first set of multiple access signatures, one of a positive integer number of multiple access signatures included in the first set of multiple access signatures being used to generate the first wireless signal. According to the method and the device, the first offset set and the first multiple access signature set are connected, so that the collision probability of unlicensed spectrum uplink grant-free data transmission is reduced, the implementation complexity is reduced, and the spectrum efficiency and the overall performance of the system are improved.

Description

User equipment, method and device in base station for wireless communication
This application is a divisional application of the following original applications:
Filing date of the original application: 2018, 05 month and 20 day
Number of the original application: 201810484951.9
-the name of the invention of the original application: user equipment, method and device in base station for wireless communication
Technical Field
The present application relates to transmission methods and apparatus in wireless communication systems, and more particularly to methods and apparatus for data and control channel transmission over unlicensed spectrum.
Background
In a conventional 3GPP (3 rd Generation Partner Project, third generation partnership project) LTE (Long-term Evolution) system, data transmission can only occur on a licensed spectrum. However, with the continuous diversification of application scenarios and the dramatic increase of traffic, it may be difficult for the conventional licensed spectrum to meet the traffic demand. Communications over unlicensed spectrum in LTE Release 13 and Release 14 are introduced by the cellular system and used for transmission of downlink and uplink data.
In the LAA (License Assisted Access, licensed assisted access) design mechanism of LTE, a transmitter (base station or user equipment) needs to perform LBT (Listen Before Talk ) before transmitting data on the unlicensed spectrum to ensure that other wireless transmissions on the unlicensed spectrum are not interfered with. To avoid the resource utilization degradation and latency caused by frequent LBT, release 15 introduces an AUL (Autonomous UpLink ) transmission mechanism on the unlicensed spectrum. In the AUL transmission mechanism, a UE (User Equipment) may autonomously perform uplink transmission in an air interface resource preconfigured by a base station; meanwhile, as the UE of the AUL selects one transmission Start point after passing through LBT at the same time, the concept of Start Offset (Start Offset) is introduced in RANs 1#92 times, different user equipments are not configured with different Start Offset groups, and the user equipments autonomously select the Start Offset from the configured Start Offset groups, so as to avoid collision caused by selecting the same transmission Start point by the user equipments of multiple AULs.
The above problems become more complex when LAA is applied in 5G NR (New Radio Access Technology) systems, in particular when NOMA (Non-Orthogonal Multiple Access ) technology is introduced, new solutions need to be studied and proposed.
Disclosure of Invention
A typical application scenario in 5G LAA is to perform uplink NOMA-based transmission by using an AUL manner, so as to cope with services with a large number of users and a small number of users, and avoid introducing unnecessary overhead of control signaling. The alternative NOMA schemes in the current 5G are numerous, and different NOMA schemes aim at different performance characteristics and application scenes. For a NOMA scheme, the number of user equipments that can be multiplexed in a block of time-frequency resources is related to the number of quasi-orthogonal multiple access signatures that can be found, and is also limited by the blind detection energy of the base station; and different NOMA schemes have different requirements on whether the transmission between the user equipments needs to be aligned or not during uplink transmission. For the above scenario, a simple manner of combining the AUL with NOMA transmission is that all ues perform aligned uplink transmission, however, this manner greatly reduces the chances of uplink AUL transmission, and once transmission occurs, the LBT will fail for other ues performing LBT, which results in a reduction in the uplink transmission opportunities.
Based on the above problems and analysis, the present application discloses a solution. Embodiments in the user equipment and features in the embodiments of the present application may be applied in the base station and vice versa without conflict. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
The application discloses a method used in user equipment for wireless communication, which is characterized by comprising the following steps:
receiving first information;
transmitting a first wireless signal;
wherein the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As an embodiment, the above method has the following advantages: establishing a connection between the first offset set and the first multiple access signature set, wherein for user equipment, a selected multiple access signature affects a value of a selected target offset, and further affects the transmission time of the first wireless signal; thereby enabling staggering transmissions of AULs based on different types of multiple access signatures in the time domain.
As an embodiment, the essence of the above method is that: establishing a connection between a plurality of multiple access signature sets based on different NOMA technologies or with different orthogonality requirements and a plurality of offset sets respectively, wherein the different offset sets correspond to different potential transmission starting moments and potential transmission ending moments; the blind detection between different starting time and cut-off time only adopts corresponding multiple access signature set from the base station side, so that the realization complexity of the base station is reduced; from the network side, the NOMA technical configuration with high orthogonality requirement comprises an offset set with less offset to ensure orthogonality, and the NOMA technical configuration with low orthogonality requirement comprises an offset set with more offset to ensure flexibility; and different multiple access signature sets can be configured with different LBT thresholds, so that the transmission efficiency of NOMA is further improved.
According to one aspect of the present application, the above method is characterized by comprising:
performing energy detection for a first frequency band;
wherein the energy detection is used to determine that the first frequency band is unoccupied, the frequency domain resource occupied by the first wireless signal belonging to the first frequency band.
As an embodiment, the essence of the above method is that: different NOMA technologies correspond to different collision tolerance, and the user equipment determines a threshold for energy detection according to the selected multiple access signature set, so that the performance of NOMA is ensured.
According to one aspect of the present application, the above method is characterized by comprising:
receiving a second signaling;
wherein the second signaling is used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent.
As an embodiment, the essence of the above method is that: when there is no technology other than 3GPP protocols such as WiFi on the first frequency band, since NOMA is a technology that is resistant to inter-user interference, the ue can use a more aggressive threshold (a lower threshold) to perform LBT interception to obtain more opportunities for AUL transmission, without worrying about unfairness caused to other non-3 GPP access technologies.
According to one aspect of the present application, the above method is characterized by comprising:
receiving second information;
wherein the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.
As an embodiment, the essence of the above method is that: the base station configures time-frequency resources which can be occupied by the first wireless signal for the user equipment in advance, and the user equipment determines the starting moment of transmission in the time-frequency resources.
According to one aspect of the present application, the method is characterized in that the user equipment selects the target offset from the first offset set by itself.
According to one aspect of the present application, the above method is characterized by comprising:
receiving a third signaling;
wherein the third signaling is used to indicate M1 first class candidate offset sets, the first offset set being one of the M1 first class candidate offset sets; the third signaling includes the first information; the M1 is a positive integer.
As an embodiment, the essence of the above method is that: the base station configures the M1 first type candidate offset sets for user equipment, and the user equipment selects the first offset set from the M1 first type candidate offset sets.
According to one aspect of the present application, the above method is characterized by comprising:
receiving a fourth signaling;
wherein the fourth signaling is used to indicate M1 first-type multiple-access signature sets, the first multiple-access signature set being one of the M1 first-type multiple-access signature sets; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets.
As an embodiment, the essence of the above method is that: and establishing a one-to-one correspondence between the M1 first-type multiple access signature sets and the M1 first-type candidate offset sets, and determining one of the M1 first-type multiple access signature sets by the user equipment to determine the configuration of the other one.
According to an aspect of the present application, the above method is characterized in that said first set of offsets is used to determine said first set of multiple access signatures from said M1 sets of multiple access signatures of the first type; or the first multiple access signature set is used to determine the first offset set from the M1 first class candidate offset sets.
As an embodiment, the above method has the following advantages: the user equipment determines the offset set by first determining the multiple access signature set or determines the multiple access signature set by first determining the offset set; the user equipment can more flexibly realize the transmission of the AUL uplink NOMA, and avoid extra signaling overhead.
The application discloses a method used in a base station for wireless communication, which is characterized by comprising the following steps:
transmitting first information;
receiving a first wireless signal;
wherein the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
According to one aspect of the present application, the above method is characterized by comprising:
sending a second signaling;
wherein the second signaling is used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent; the frequency domain resource occupied by the first wireless signal belongs to the first frequency band.
According to one aspect of the present application, the above method is characterized by comprising:
transmitting second information;
wherein the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.
According to one aspect of the present application, the method is characterized in that the sender of the first wireless signal selects the target offset from the first offset set by itself.
According to one aspect of the present application, the above method is characterized by comprising:
transmitting a third signaling;
wherein the third signaling is used to indicate M1 first class candidate offset sets, the first offset set being one of the M1 first class candidate offset sets; the third signaling includes the first information; the M1 is a positive integer.
According to one aspect of the present application, the above method is characterized by comprising:
transmitting a fourth signaling;
wherein the fourth signaling is used to indicate M1 first-type multiple-access signature sets, the first multiple-access signature set being one of the M1 first-type multiple-access signature sets; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets.
According to an aspect of the present application, the above method is characterized in that said first set of offsets is used to determine said first set of multiple access signatures from said M1 sets of multiple access signatures of the first type; or the first multiple access signature set is used to determine the first offset set from the M1 first class candidate offset sets.
The application discloses a user equipment used for wireless communication, characterized by comprising:
a first receiver module that receives first information;
a first transceiver module that transmits a first wireless signal;
wherein the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As an embodiment, the above-mentioned user equipment used for wireless communication is characterized in that the first transceiver module further performs energy detection for a first frequency band; the energy detection is used to determine that the first frequency band is unoccupied, and frequency domain resources occupied by the first wireless signal belong to the first frequency band.
As an embodiment, the above-mentioned user equipment used for wireless communication is characterized in that the first receiver module further receives second signaling; the second signaling is used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent.
As an embodiment, the above-mentioned user equipment used for wireless communication is characterized in that the first receiver module further receives second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.
As an embodiment, the above-mentioned user equipment used for wireless communication is characterized in that the user equipment selects the target offset from the first offset set by itself.
As an embodiment, the above-mentioned user equipment used for wireless communication is characterized in that the first receiver module further receives third signaling; the third signaling is used to indicate M1 first-type candidate offset sets, the first offset set being one of the M1 first-type candidate offset sets; the third signaling includes the first information; the M1 is a positive integer.
As an embodiment, the above-mentioned user equipment used for wireless communication is characterized in that the first receiver module further receives fourth signaling; the fourth signaling is used to indicate M1 first-type multiple-access signature sets, the first multiple-access signature set being one of the M1 first-type multiple-access signature sets; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets.
As an embodiment, the above-mentioned user equipment used for wireless communication is characterized in that the first offset set is used to determine the first multiple access signature set from the M1 multiple access signature sets of the first type; or the first multiple access signature set is used to determine the first offset set from the M1 first class candidate offset sets.
The application discloses a base station apparatus used for wireless communication, characterized by comprising:
a first transmitter module that transmits first information;
a second receiver module that receives the first wireless signal;
wherein the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As an embodiment, the above base station apparatus used for wireless communication is characterized in that the first transmitter module further transmits second signaling; the second signaling is used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent; the frequency domain resource occupied by the first wireless signal belongs to the first frequency band.
As an embodiment, the above base station apparatus used for wireless communication is characterized in that the first transmitter module further transmits second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.
As an embodiment, the above base station apparatus used for wireless communication is characterized in that the sender of the first wireless signal selects the target offset from the first offset set by itself.
As an embodiment, the above base station apparatus used for wireless communication is characterized in that the first transmitter module further transmits third signaling; the third signaling is used to indicate M1 first-type candidate offset sets, the first offset set being one of the M1 first-type candidate offset sets; the third signaling includes the first information; the M1 is a positive integer.
As an embodiment, the above base station apparatus used for wireless communication is characterized in that the first transmitter module further transmits fourth signaling; the fourth signaling is used to indicate M1 first-type multiple-access signature sets, the first multiple-access signature set being one of the M1 first-type multiple-access signature sets; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets.
As an embodiment, the above base station apparatus for wireless communication is characterized in that the first offset set is used to determine the first multiple access signature set from the M1 multiple access signature sets of the first type; or the first multiple access signature set is used to determine the first offset set from the M1 first class candidate offset sets.
As an example, compared to the conventional solution, the present application has the following advantages:
establishing a connection between said first set of offsets and said first set of multiple access signatures, which for the user equipment will affect the value of the selected target offset and thus the transmission time of said first radio signal; thereby enabling staggering transmissions of AULs based on different types of multiple access signatures in the time domain.
Establishing a connection between a plurality of multiple access signature sets based on different NOMA technologies or different for orthogonality requirements and a plurality of offset sets respectively, wherein the different offset sets correspond to different potential transmission starting moments and potential transmission ending moments; the blind detection between different starting time and cut-off time only adopts corresponding multiple access signature set from the base station side, so that the realization complexity of the base station is reduced; from the network side, the NOMA technical configuration with high orthogonality requirement comprises an offset set with less offset to ensure orthogonality, and the NOMA technical configuration with low orthogonality requirement comprises an offset set with more offset to ensure flexibility; and different multiple access signature sets can be configured with different LBT thresholds, so that the transmission efficiency of NOMA is further improved.
Different NOMA technologies correspond to different collision tolerance, and the user equipment determines a threshold for energy detection according to the selected multiple access signature set, so that the performance of NOMA is ensured.
When there is no technology other than 3GPP protocol such as WiFi on the first frequency band, since NOMA is a technology that is resistant to inter-user interference, the ue can use a more aggressive threshold (lower threshold) to perform LBT interception to obtain more opportunities for AUL transmission, without worrying about unfairness generated to other non-3 GPP access technologies.
The user equipment determines the set of multiple access signatures by first determining the set of offsets or by first determining the set of offsets; the user equipment can more flexibly realize the transmission of the AUL uplink NOMA, and avoid extra signaling overhead.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:
FIG. 1 illustrates a flow chart of first information according to one embodiment of the present application;
FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the present application;
fig. 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to one embodiment of the present application;
fig. 4 shows a schematic diagram of an evolved node and a UE according to one embodiment of the present application;
fig. 5 shows a flow chart of a first wireless signal according to one embodiment of the present application;
FIG. 6 shows a schematic diagram of a first moment in time and a second moment in time according to one embodiment of the present application;
fig. 7 shows a schematic diagram of a first set of multiple access signatures according to one embodiment of the present application;
FIG. 8 shows a schematic diagram of a given time zone according to the present application;
FIG. 9 shows a schematic diagram of one M1 time zones according to the present application;
FIG. 10 shows a schematic diagram of one energy detection according to the present application;
fig. 11 shows a schematic diagram of receiving a first wireless signal according to the present application;
fig. 12 shows a block diagram of a processing arrangement for use in a user equipment according to one embodiment of the present application;
fig. 13 shows a block diagram of a processing device for use in a base station according to one embodiment of the present application.
Detailed Description
The technical solution of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other.
Example 1
Embodiment 1 illustrates a flow chart of the first information as shown in fig. 1.
In embodiment 1, the user equipment in the present application first receives the first information and then transmits the first wireless signal; the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As a sub-embodiment, the transmission of the first wireless signal is Grant Free or the transmission of the first wireless signal is Contention Based.
As a sub-embodiment, the unit of any one of the K1 first type offsets is microseconds.
As a sub-embodiment, any one of the K1 first type offsets is equal to the duration of a positive integer number of multicarrier symbols.
As a sub-embodiment, the given first type of offset is any one of the K1 first type of offsets, the given first type of offset is equal to one of {16,25,34,43,52,61}, and the given first type of offset is in microseconds.
As a sub-embodiment, the given first type of offset is any one of the K1 first type of offsets, the given first type of offset is equal to l×t, where L is a positive integer no greater than 14, and T is a duration of one multicarrier symbol.
As a sub-embodiment, the multi-carrier symbol in the present application is one of OFDM (Orthogonal Frequency Division Multiplexing ) symbol, SC-FDMA (Single-Carrier Frequency Division Multiple Access, single carrier frequency division multiplexing access) symbol, FBMC (Filter Bank Multi Carrier, filter bank multi-carrier) symbol, OFDM symbol containing CP (Cyclic Prefix), DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing of discrete fourier transform spread) symbol containing CP.
As a sub-embodiment, the frequency domain resource occupied by the first wireless signal belongs to an unlicensed spectrum.
As a sub-embodiment, the first information is an RRC (Radio Resource Control ) signaling.
As a sub-embodiment, the first information is Cell-Specific.
As a sub-embodiment, the first information is terminal group specific, and the user equipment belongs to the terminal group.
As a sub-embodiment, the first information is transmitted between a base station and the user equipment by radio signals.
As a sub-embodiment, the first information is transmitted through RRC signaling.
As a sub-embodiment, the first set of multiple access signatures comprises P1 multiple access signatures of a first type, the P1 being a positive integer greater than 1.
As an subsidiary embodiment of this sub-embodiment, any one of said P1 first-type Multiple Access signatures is a MA (Multiple Access) Signature.
As a subsidiary embodiment of this sub-embodiment, any two of said P1 first-type multiple-access signatures are orthogonal.
As a subsidiary embodiment of this sub-embodiment, any two of said P1 first-type multiple-access signatures are quasi-orthogonal.
As an auxiliary embodiment of the sub-embodiment, any one of the P1 first type multiple access signatures includes one or more of { sequence, codebook (Codebook), codeword (Codeword), interleaving pattern (pattern), mapping pattern (pattern), demodulation reference signal (Demodulation reference signal), preamble (Preamble), spatial-dimension (Spatial-dimension), power-dimension (Power-dimension) }.
As a sub-embodiment, the one of the positive integer multiple access signatures being used to generate the first wireless signal means: a first bit block is used to generate the first wireless signal, the first bit block is used to generate the first modulation code symbol sequence, and the first modulation code symbol sequence is scrambled by one of the positive integer multiple access signatures to generate the first wireless signal.
As a sub-embodiment, the ue may select a multiple access signature from the positive integer multiple access signatures to generate the first wireless signal.
As a sub-embodiment, the first radio signal is transmitted on PUSCH (Physical Uplink Shared Channel ).
As a sub-embodiment, the transport channel corresponding to the first radio signal is UL-SCH (Uplink Shared Channel ).
As a sub-embodiment, the second time instant is the boundary of a Slot (Slot).
As a sub-embodiment, the second time instant is a boundary of one sub-frame (Subframe).
As a sub-embodiment, the second time instant is a boundary of a Mini-Slot (Mini).
As a sub-embodiment, the second time instant is a boundary of a multicarrier symbol.
Example 2
Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.
Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating an NR 5g, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system network architecture 200. The NR 5G or LTE network architecture 200 may be referred to as EPS (Evolved Packet System ) 200 as some other suitable terminology. EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access Network) 202,5G-CN (5G-Core Network)/EPC (Evolved Packet Core ) 210, hss (Home Subscriber Server, home subscriber server) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination for the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), TRP (transmit-receive point), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband physical network device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5G-CN/EPC210 through an S1/NG interface. The 5G-CN/EPC210 includes MME/AMF/UPF211, other MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/UPF (User Plane Function ) 214, S-GW (Service Gateway) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway) 213. The MME/AMF/UPF211 is a control node that handles signaling between the UE201 and the 5G-CN/EPC210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW212, which S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and PS streaming services (PSs).
As a sub-embodiment, the UE201 corresponds to the user equipment in the present application.
As a sub-embodiment, the gNB203 corresponds to the base station in the present application.
As a sub-embodiment, the UE201 is a terminal that supports wireless communication over unlicensed spectrum.
As a sub-embodiment, the UE201 is a terminal supporting AUL transmission.
As a sub-embodiment, the UE201 is a NOMA-enabled terminal.
As a sub-embodiment, the UE201 is a terminal supporting narrowband LBT.
As a sub-embodiment, the gNB203 supports wireless communication over unlicensed spectrum.
As a sub-embodiment, the gNB203 supports AUL transmissions.
As a sub-embodiment, the gNB203 supports NOMA-based uplink transmissions.
Example 3
Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present application, as shown in fig. 3.
Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane and a control plane, fig. 3 shows the radio protocol architecture for a User Equipment (UE) and a base station device (gNB or eNB) in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (Packet Data Convergence Protocol ) sublayer 304, which terminate at the gNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between gnbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest ). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but there is no header compression function for the control plane. The control plane also includes an RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the gNB and the UE.
As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment described in the present application.
As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the base station in the present application.
As a sub-embodiment, the first wireless signal in the present application is generated in the PHY301.
As a sub-embodiment, the first wireless signal in the present application is generated in the MAC sublayer 302.
As a sub-embodiment, the first information in the present application is generated in the RRC sublayer 306.
As a sub-embodiment, the second signaling in the present application is generated in the RRC sublayer 306.
As a sub-embodiment, the second information in the present application is generated in the RRC sublayer 306.
As a sub-embodiment, the second information in the present application is generated in the PHY301.
As a sub-embodiment, the third signaling in the present application is generated in the RRC sublayer 306.
As a sub-embodiment, the fourth signaling in the present application is generated in the RRC sublayer 306.
Example 4
Embodiment 4 shows a schematic diagram of a base station device and a user equipment according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network.
The base station apparatus (410) includes a controller/processor 440, a memory 430, a receive processor 412, a transmit processor 415, a transmitter/receiver 416, and an antenna 420.
The user equipment (450) includes a controller/processor 490, a memory 480, a data source 467, a transmit processor 455, a receive processor 452, a transmitter/receiver 456, and an antenna 460.
In UL (Uplink) transmission, the processing related to the base station apparatus (410) includes:
a receiver 416 that receives the radio frequency signals through its respective antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to the receive processor 412;
a receive processor 412 that implements various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, physical layer control signaling extraction, and the like;
a receive processor 412 that performs various signal reception processing functions for the L1 layer (i.e., physical layer) including multi-antenna reception, despreading (Despreading), code division multiplexing, precoding, etc.;
a controller/processor 440 implementing L2 layer functions and associated with a memory 430 storing program code and data;
the controller/processor 440 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the UE 450; upper layer packets from the controller/processor 440 may be provided to the core network;
Controller/processor 440 determines the target air interface resources that the target wireless signal may occupy and sends the result to receive processor 412; determining whether the target uplink wireless signal occupies the target air interface resource or not through blind detection; the target wireless signal comprises the first wireless signal in the application; the target air interface resource comprises at least one of { time domain resource, frequency domain resource and space resource } occupied by the first wireless signal, wherein the space resource corresponds to the first antenna port group; determining a space receiving parameter for receiving the first wireless signal according to the first antenna port group;
in UL transmission, the processing related to the user equipment (450) includes:
a data source 467 providing upper layer data packets to the controller/processor 490. Data source 467 represents all protocol layers above the L2 layer;
a transmitter 456 that transmits radio frequency signals through its respective antenna 460, converts baseband signals to radio frequency signals, and provides radio frequency signals to the respective antenna 460;
a transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, physical layer signaling generation, and the like;
A transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including multi-antenna transmission, spreading (Spreading), code division multiplexing, precoding, etc.;
controller/processor 490 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocations of the gNB410, implementing L2 layer functions for the user and control planes;
the controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the gNB 410;
controller/processor 490 determines the target air interface resources occupied by the target wireless signal itself and sends the result to transmit processor 455; the target wireless signal comprises the first wireless signal in the application; the target air interface resource comprises at least one of { time domain resource, frequency domain resource and space resource } occupied by the first wireless signal, wherein the space resource corresponds to the first antenna port group;
as a sub-embodiment, the UE450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the UE450 apparatus at least to: receiving first information and transmitting a first wireless signal; the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As a sub-embodiment, the UE450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving first information and transmitting a first wireless signal; the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As a sub-embodiment, the gNB410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The gNB410 means at least: transmitting first information and receiving a first wireless signal; the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As a sub-embodiment, the gNB410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting first information and receiving a first wireless signal; the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As a sub-embodiment, UE450 corresponds to a user equipment in the present application.
As a sub-embodiment, the gNB410 corresponds to a base station in the present application.
As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452 and the controller/processor 490 are used to receive the first information.
As a sub-embodiment, at least the first two of the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to transmit the first wireless signal.
As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to perform energy detection for the first frequency band.
As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452 and the controller/processor 490 are used to receive the second signaling.
As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452 and the controller/processor 490 are used to receive the second information.
As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452 and the controller/processor 490 are used to receive the third signaling.
As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452 and the controller/processor 490 are used to receive fourth signaling.
As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the first information.
As a sub-embodiment, at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive the first wireless signal.
As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the second signaling.
As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the second information.
As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the third signaling.
As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit fourth signaling.
Example 5
Embodiment 5 illustrates a flow chart of a first wireless signal, as shown in fig. 5. In fig. 5, a base station N1 is a maintenance base station of a serving cell of a user equipment U2; wherein the step identified by block F0 in the figure is optional.
For the followingBase station N1Transmitting a second signaling in step S10; transmitting a third signaling in step S11; transmitting a fourth signaling in step S12; transmitting the first information in step S13; transmitting the second information in step S15; the first wireless signal is received in step S15.
For the followingUser equipment U2Receiving a second signaling in step S20; receiving a third signaling in step S21; receiving a fourth signaling in step S22; receiving first information in step S23; receiving the second information in step S24; performing energy detection for a first frequency band in step S25; the first wireless signal is transmitted in step S26.
In embodiment 5, the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the energy detection is used to determine that the first frequency band is unoccupied, the frequency domain resource occupied by the first wireless signal belonging to the first frequency band; the second signaling is used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted through an air interface; the user equipment U2 selects the target offset from the first offset set by itself; the third signaling is used to indicate M1 first-type candidate offset sets, the first offset set being one of the M1 first-type candidate offset sets; the third signaling includes the first information; the M1 is a positive integer; the fourth signaling is used to indicate M1 first-type multiple-access signature sets, the first multiple-access signature set being one of the M1 first-type multiple-access signature sets; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets; the first set of offsets is used to determine the first set of multiple access signatures from the M1 first type of multiple access signature sets; or the first multiple access signature set is used to determine the first offset set from the M1 first class candidate offset sets.
As a sub-embodiment, the air interface in this application corresponds to the interface between UE201 and NR node B203 in embodiment 2.
As a sub-embodiment, the energy detection is achieved by means of energy detection in WiFi.
As a sub-embodiment, the energy detection is achieved by measuring RSSI (Received Signal Strength Indication ).
As a sub-embodiment, said performing energy detection for the first frequency band means: the user equipment U2 performs Q times of energy detection in Q time sub-pools of the first frequency band, respectively, where Q is a positive integer greater than 1.
As an subsidiary embodiment of this sub-embodiment, said Q time sub-pools are located before said first time instant in the time domain.
As an subsidiary embodiment of this sub-embodiment, once said energy detection means: the user equipment U2 monitors the received power in a given time unit belonging to one of the Q time sub-pools.
As an subsidiary embodiment of this sub-embodiment, once said energy detection means: the user equipment U2 monitors the received energy in a given time unit belonging to one of the Q time sub-pools.
As an subsidiary embodiment of this sub-embodiment, once said energy detection means: the user equipment U2 perceives (Sense) for all radio signals on a given frequency domain resource in a given time unit to obtain a given power; the given frequency domain resource is the first frequency band; the given time unit belongs to one of the Q time sub-pools.
As an subsidiary embodiment of this sub-embodiment, once said energy detection means: the user equipment U2 perceives all wireless signals on a given frequency domain resource in a given time unit to obtain given energy; the given frequency domain resource is the first frequency band; the given time unit belongs to one of the Q time sub-pools.
As an subsidiary embodiment of this sub-embodiment, said energy detection is achieved in a manner defined in section 15 of 3gpp TS 36.213.
As an additional embodiment of this sub-embodiment, the energy detection is achieved by means of energy detection in LTE LAA.
As an subsidiary embodiment of this sub-embodiment, said energy detection is an energy detection in LBT.
As an subsidiary embodiment of this sub-embodiment, said energy detection is energy detection in CCA (Clear Channel Assessment ).
As an subsidiary embodiment of this sub-embodiment, the detection units corresponding to the Q times of energy detection are dBm (millidecibel).
As an subsidiary embodiment of this sub-embodiment, the Q energy detections correspond to detection units of milliwatts.
As an subsidiary embodiment of this sub-embodiment, the detection units for the Q times of energy detection are joules.
As an subsidiary embodiment of this sub-embodiment, the time lengths of any two time sub-pools of the Q time sub-pools are equal.
As an subsidiary embodiment of this sub-embodiment, there are two time sub-pools of the Q time sub-pools of unequal time lengths.
As an subsidiary embodiment of this sub-embodiment, there is one time sub-pool of 16 microseconds in length among the Q time sub-pools.
As an subsidiary embodiment of this sub-embodiment, the earliest one of the Q time sub-pools is different in time length from the other time sub-pools.
As an subsidiary embodiment of this sub-embodiment, any two of said Q time sub-pools are orthogonal in time.
As an subsidiary embodiment of this sub-embodiment, said Q time sub-pools occupy consecutive time domain resources.
As an auxiliary embodiment of the sub-embodiment, any two time sub-pools of the Q time sub-pools occupy discontinuous time domain resources.
As an subsidiary embodiment of this sub-embodiment, any one of said Q time sub-pools occupies consecutive time domain resources.
As an subsidiary embodiment of this sub-embodiment, the Q time sub-pools are listening times in Category 4 (fourth class) LBT.
As an subsidiary embodiment of this sub-embodiment, said Q time sub-pools include deferred (Defer) slots and avoidance (Back-off) slots in Category 4 (fourth class) LBT.
As an subsidiary embodiment of this sub-embodiment, said energy detection being used to determine that said first frequency band is unoccupied means that: the energy detected by each of the Q energy detections is below a first threshold, and the user equipment U2 determines to start transmitting the first wireless signal at the first time.
As an example of this subordinate embodiment, the first threshold is fixed or the first threshold is configured by higher layer signaling.
As an example of this subordinate embodiment, the first threshold value is related to the first set of offsets.
As an example of this subsidiary embodiment, said first threshold is associated with said first set of multiple access signatures.
As a sub-embodiment, the first frequency band is a Carrier (Carrier).
As a sub-embodiment, the first frequency band is a BWP (Bandwidth Part).
As a sub-embodiment, the first frequency band is part of a carrier.
As a sub-embodiment, the first frequency band is a sub-band (Subband).
As a sub-embodiment, the first frequency band is composed of a positive integer number of subcarriers (subcarriers) that are contiguous in the frequency domain.
As a sub-embodiment, the bandwidth of the first frequency band is equal to 20MHz.
As a sub-embodiment, the bandwidth of the first frequency band is equal to 10MHz.
As a sub-embodiment, the bandwidth of the first frequency band is equal to 2.16GHz.
As a sub-embodiment, the second signaling is an RRC signaling.
As an subsidiary embodiment of this sub-embodiment, said second signalling is cell-specific.
As an subsidiary embodiment of this sub-embodiment, said second signaling is specific to said first frequency band.
As a sub-embodiment, the second signaling is a broadcast message.
As a sub-embodiment, the second signaling is physical layer signaling.
As a sub-embodiment, the second signaling being used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent means that: the second signaling is used to indicate that the first frequency band does not exist for a longer time window for transmissions based on radio access technology under non-3 GPP protocols.
As an subsidiary embodiment of this sub-embodiment, said radio access technology under non-3 GPP protocols comprises at least one of { WiFi, bluetooth, infrared }.
As an subsidiary embodiment of this sub-embodiment, the radio access technology under the non-3 GPP protocol includes a radio access technology under the IEEE 802.1x protocol.
As a sub-embodiment, the second information is an RRC signaling.
As a sub-embodiment, the second information is a physical layer dynamic signaling.
As a sub-embodiment, the second information includes first sub-information and second sub-information, the first sub-information is used to indicate the first time window, and the second sub-information is used to indicate frequency domain resources occupied by the first wireless signal.
As an auxiliary embodiment of the sub-embodiment, the first sub-information is indicated by RRC signaling and the second sub-information is indicated by physical layer dynamic signaling.
As a sub-embodiment, the user equipment U2 selects the target offset from the first offset set by itself means that: the user equipment U2 randomly selects one first type offset from the K1 first types offsets as the target offset.
As a sub-embodiment, any one of the M1 first-class candidate offset sets includes a positive integer number of target offsets.
As an subsidiary embodiment of this sub-embodiment, the unit of any one of said positive integer number of target offsets is microseconds, or the unit of any one of said positive integer number of target offsets is equal to the duration of the positive integer number of multicarrier symbols.
As an subsidiary embodiment of this sub-embodiment, any one of said positive integer number of target offsets is a positive integer.
As a sub-embodiment, the first target offset set and the second target offset set are any two different first type candidate offset sets in the M1 first type candidate offset sets, and at least one target offset in the first target offset set does not belong to the second target offset set.
As an auxiliary embodiment of the sub-embodiment, the first target offset set and the second target offset set are any two different first type candidate offset sets in the M1 first type candidate offset sets, and any one target offset in the first target offset set does not belong to the second target offset set.
As a sub-embodiment, any one of the M1 first-type multiple-access signature sets includes a positive integer number of candidate multiple-access signatures.
As an subsidiary embodiment of this sub-embodiment, said candidate multiple access Signature is a MA Signature.
As a subsidiary embodiment of this sub-embodiment, any two candidate multiple access signatures of a set of multiple access signatures of said first type are orthogonal.
As a subsidiary embodiment of this sub-embodiment, any two candidate multiple access signatures of a set of multiple access signatures of said first type are quasi-orthogonal.
As an subsidiary embodiment of this sub-embodiment, said candidate multiple access signature comprises one or more of { sequence, codebook, codeword, interleaving pattern, mapping pattern, demodulation reference signal, preamble, spatial dimension, power dimension }.
As a sub-embodiment, the index of the first multiple access signature set in the M1 first type multiple access signature sets is equal to the index of the first offset set in the M1 first type candidate offset sets.
As a sub-embodiment, the third signaling and the fourth signaling belong to the same RRC signaling.
As a sub-embodiment, the user equipment U2 selects the first offset set from the M1 first type candidate offset sets by itself.
As a sub-embodiment, the first offset set is used to determine the first multiple access signature set from the M1 multiple access signature sets of the first type refers to: the user equipment U2 determines the first multiple access signature set from the M1 multiple access signature sets according to the index of the first offset set in the M1 first type candidate offset sets.
As a sub-embodiment, the ue U2 selects the first multiple access signature set from the M1 multiple access signature sets.
As a sub-embodiment, the first multiple access signature set is used to determine the first offset set from the M1 first type candidate offset sets refers to: the user equipment U2 determines the first offset set from the M1 first type candidate offset sets according to the index of the first multiple access signature set in the M1 first type multiple access signature sets.
As a sub-embodiment, the base station N1 blindly detects the first wireless signal in the first time window.
As an subsidiary embodiment of this sub-embodiment, said blind detection means: the base station N1 device is unaware of the first time instant before receiving the first wireless signal.
As an subsidiary embodiment of this sub-embodiment, said blind detection means: any one of the M1 first-type multiple-access signature sets includes a positive integer number of candidate multiple-access signatures, and the base station N1 device blindly detects the first wireless signal in the first time window according to all candidate multiple-access signatures included in the M1 first-type multiple-access signature sets.
As an subsidiary embodiment of this sub-embodiment, said blind detection means: the M1 first-type multiple access signature sets are in one-to-one correspondence with the M1 first-type candidate offset sets, and the M1 first-type candidate offset sets are respectively in one-to-one correspondence with the M1 time areas; a given first-type multiple-access signature set is any one of the M1 first-type multiple-access signature sets, the given first-type multiple-access signature set corresponding to a given first-type candidate offset set of the M1 first-type candidate offset sets, the given first-type candidate offset set corresponding to a given time region of the M1 time regions; the base station N1 blindly detects the first wireless signal in the given time region by a multiple access signature comprised by the given set of first type multiple access signatures.
Example 6
Example 6 illustrates a schematic diagram of a first time and a second time, as shown in fig. 6. In fig. 6, the second time is a start time of the first time window in the present application, and the first time is a time domain start position of the user equipment in the present application for transmitting the first wireless signal; the second time is before the first time in the time domain, and the time interval between the first time and the second time is equal to the target offset in the application.
As a sub-embodiment, the second time instant is a boundary of a time slot.
As a sub-embodiment, the second time instant is a boundary of one sub-frame.
As a sub-embodiment, the second time instant is a boundary of a Mini-Slot (Mini).
As a sub-embodiment, the user equipment in the present application and the base station equipment in the present application determine the starting time of the first time window after obtaining downlink synchronization.
As a sub-embodiment, the user equipment in the present application and the base station equipment in the present application determine the starting time of the first time window after obtaining uplink synchronization.
As a sub-embodiment, the user equipment in the present application and the base station equipment in the present application determine the first time after obtaining downlink synchronization.
As a sub-embodiment, the first time is determined after the ue in the present application and the base station device in the present application acquire uplink synchronization.
As a sub-embodiment, the user equipment starts to transmit the first wireless signal from the second time instant.
As a sub-embodiment, the duration of the first wireless signal in the time domain is fixed or the duration of the first wireless signal in the time domain is configured by higher layer signaling.
As a sub-embodiment, the first wireless signal includes target signaling therein, which is used to determine the duration of the first wireless signal in the time domain.
As an subsidiary embodiment of the above two sub-embodiments, the duration of the first wireless signal in the time domain is equal to the duration of a positive integer number of multicarrier symbols.
As an example of this subsidiary embodiment, the positive integer number of multicarrier symbols is contiguous in the time domain.
As a sub-embodiment, the duration of the first wireless signal in the time domain is related to the first set of multiple access signatures.
As a sub-embodiment, the duration of the first wireless signal in the time domain is related to the first set of offsets.
Example 7
Embodiment 7 illustrates a schematic diagram of a first set of multiple access signatures, as shown in fig. 7. In fig. 7, the first set of multiple-access signatures includes P1 multiple-access signatures of a first type, where P1 is a positive integer greater than 1; the P1 first-type multiple-access signatures include { first-type multiple-access signatures #1, …, first-type multiple-access signatures #i, …, first-type multiple-access signatures #p1} shown in the figure; the first-type multiple access signature #1 to the first-type multiple access signature #p1 occupy first-type air interface resources #1 to first-type air interface resources #p1 shown in the figure respectively; the first type air interface resource #1 to the first type air interface resource #P1 are represented by small-point filled rectangles with index i in the figure; any one of the first type air interface resources #1 to the first type air interface resources #p1 is a time-frequency code resource, the time-frequency code resource occupies a given time-frequency resource in a time domain and a frequency domain, the given time-frequency resource is used for transmitting information in a code division multiplexing mode, and the time-frequency code resource refers to a given code domain resource in the given time-frequency resource.
As a sub-embodiment, the characteristic sequences corresponding to any two different first-type multiple access signatures of the first-type multiple access signatures #1 to #p1 are orthogonal, or the characteristic sequences corresponding to any two different first-type multiple access signatures of the first-type multiple access signatures #1 to #p1 are quasi-orthogonal.
As a sub-embodiment, the ue in the present application is a first terminal, one ue other than the ue in the present application is a second terminal, the first terminal and the second terminal simultaneously select the first multiple access signature set and the first offset set in the present application, and a start time of the first terminal transmitting the first radio signal and a start time of the second terminal transmitting the uplink radio signal are different.
As a sub-embodiment, the user equipment in the present application is a first terminal, and one user equipment other than the user equipment in the present application is a second terminal; the first terminal and the second terminal simultaneously select the first multiple access signature set and the first offset set in the application, wherein the first offset set comprises only one offset; the starting time of the first terminal for transmitting the first wireless signal is the same as the starting time of the second terminal for transmitting the uplink wireless signal.
As a sub-embodiment, the given time-frequency Resource corresponding to the time-frequency code Resource includes R1 sub-frequency resources, and each sub-frequency Resource includes R2 REs (Resource elements); r1 modulation symbols are mapped to the R1 sub-time-frequency resources respectively, wherein each modulation symbol is mapped to the R2 RE after being multiplied by a first characteristic sequence; the first signature sequence includes R2 elements, which are the given code domain resources.
As a subsidiary embodiment of this sub-embodiment, said first signature sequence corresponds to any one of said P1 first-type multiple-access signatures.
Example 8
Example 8 illustrates a schematic diagram of a given time zone, as shown in fig. 8. In fig. 8, M1 time regions respectively correspond to the M1 candidate offset sets of the first type in the present application; the given time region is any one of the M1 time regions, and corresponds to a given candidate offset set of the M1 candidate offset sets of the first type; the largest target offset in the given set of candidate offsets is the third target offset and the smallest target offset in the given set of candidate offsets is the fourth target offset; the time interval between the starting time of the given time zone in the time domain and the first time in the application is equal to the fourth target offset, and the time interval between the ending time of the given time zone in the time domain and the first time in the application is equal to the third target offset.
As a sub-embodiment, the given time region corresponds to a time domain range of a transmission start time of the first wireless signal determined by the user equipment selecting a target offset in the given candidate offset set.
As a sub-embodiment, the given candidate offset set corresponds to a given multiple access signature set of the M1 multiple access signature sets of the first type in the present application, and in a given time region, the base station in the present application blindly detects the first wireless signal using only the multiple access signature included in the given multiple access signature set.
Example 9
Example 9 illustrates a schematic diagram of M1 time zones, as shown in fig. 9. In fig. 9, M1 time regions respectively correspond to the M1 candidate offset sets of the first type in the present application; the M1 time zones are time zone #1 to time zone #m1, respectively.
As a sub-embodiment, the duration of any one of the M1 time regions in the time domain is not greater than the duration of 1 multicarrier symbol.
As a sub-embodiment, the M1 time regions are orthogonal in the time domain.
As a sub-embodiment, at least two time regions among the M1 time regions overlap in the time domain.
Example 10
Embodiment 10 illustrates a schematic diagram of energy detection. In fig. 10, the ue in the present application first determines the target offset in the present application, then determines the first time instant in the present application according to the target offset, and performs energy detection in a second time window before the first time instant.
As a sub-embodiment, the second time window includes the Q time sub-pools in the present application.
As a sub-embodiment, the ue selects the starting time of the second time window in the time domain by itself.
As a sub-embodiment, the target offset belongs to the first offset set, the first offset set corresponds to the first multiple access signature set, and the user equipment determines a threshold for energy detection according to the first multiple access signature set.
As an subsidiary embodiment of this sub-embodiment, said threshold for energy detection is said first threshold in the present application.
Example 11
Embodiment 11 illustrates a schematic diagram of receiving a first wireless signal. In fig. 11, M1 first-type candidate offset sets are respectively in one-to-one correspondence with M1 first-type multiple access signature sets, and the M1 first-type candidate offset sets are respectively in one-to-one correspondence with time zones #1 to #m1 shown in the figure.
As a sub-embodiment, the user equipment selects a given candidate offset set of the M1 first type candidate offset sets, and starts to generate the first wireless signal in a given time region corresponding to the given candidate offset set by using one multiple access signature of multiple access signatures included in a given multiple access signature set corresponding to the given candidate offset set; the given multiple access signature set is a first type of multiple access signature set of the M1 multiple access signature sets corresponding to the given candidate offset set.
As an subsidiary embodiment of this sub-embodiment, said base station starts blind detection of said first wireless signal with a multiple access signature comprised by a given set of multiple access signatures at a start time corresponding to a given time zone.
Example 12
Embodiment 12 illustrates a block diagram of the processing means in a user equipment, as shown in fig. 12. In fig. 12, the UE processing apparatus 1200 mainly consists of a first receiver module 1201 and a first transceiver module 1202.
A first receiver module 1201 that receives first information;
a first transceiver module 1202 that transmits a first wireless signal;
in embodiment 12, the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As a sub-embodiment, the first transceiver module 1202 also performs energy detection for a first frequency band; the energy detection is used to determine that the first frequency band is unoccupied, and frequency domain resources occupied by the first wireless signal belong to the first frequency band.
As a sub-embodiment, the first receiver module 1201 also receives second signaling; the second signaling is used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent.
As a sub-embodiment, the first receiver module 1201 also receives second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.
As a sub-embodiment, the user equipment selects the target offset from the first offset set by itself.
As a sub-embodiment, the first receiver module 1201 also receives third signaling; the third signaling is used to indicate M1 first-type candidate offset sets, the first offset set being one of the M1 first-type candidate offset sets; the third signaling includes the first information; the M1 is a positive integer.
As a sub-embodiment, the first receiver module 1201 also receives fourth signaling; the fourth signaling is used to indicate M1 first-type multiple-access signature sets, the first multiple-access signature set being one of the M1 first-type multiple-access signature sets; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets.
As a sub-embodiment, the first set of offsets is used to determine the first set of multiple access signatures from the M1 multiple access signature sets of the first type; or the first multiple access signature set is used to determine the first offset set from the M1 first class candidate offset sets.
As a sub-embodiment, the first receiver module 1201 includes at least two of the receiver 456, the receive processor 452, and the controller/processor 490 of embodiment 4.
As a sub-embodiment, the first transceiver module 1202 includes at least the first four of the transmitter/receiver 456, the transmit processor 455, the receive processor 452, and the controller/processor 490 of embodiment 4.
Example 13
Embodiment 13 illustrates a block diagram of the processing means in a base station apparatus, as shown in fig. 13. In fig. 13, the base station apparatus processing device 1300 mainly includes a first transmitter module 1301 and a second receiver module 1302.
A first transmitter module 1301 that transmits first information;
a second receiver module 1302 that receives a first wireless signal;
in embodiment 13, the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.
As a sub-embodiment, the first transmitter module 1301 also transmits second signaling; the second signaling is used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent; the frequency domain resource occupied by the first wireless signal belongs to the first frequency band.
As a sub-embodiment, the first transmitter module 1301 also transmits second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.
As a sub-embodiment, the sender of the first wireless signal selects the target offset from the first set of offsets by itself.
As a sub-embodiment, the first transmitter module 1301 also transmits third signaling; the third signaling is used to indicate M1 first-type candidate offset sets, the first offset set being one of the M1 first-type candidate offset sets; the third signaling includes the first information; the M1 is a positive integer.
As a sub-embodiment, the first transmitter module 1301 also transmits fourth signaling; the fourth signaling is used to indicate M1 first-type multiple-access signature sets, the first multiple-access signature set being one of the M1 first-type multiple-access signature sets; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets.
As a sub-embodiment, the first set of offsets is used to determine the first set of multiple access signatures from the M1 multiple access signature sets of the first type; or the first multiple access signature set is used to determine the first offset set from the M1 first class candidate offset sets.
As a sub-embodiment, the first transmitter module 1301 includes at least two of the transmitter 416, the transmit processor 415, and the controller/processor 440 of embodiment 4.
As a sub-embodiment, the second receiver module 1302 includes at least two of the receiver 416, the receive processor 412, and the controller/processor 440 of embodiment 4.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. User equipment, terminals and UEs in the present application include, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircraft, mini-planes, mobile phones, tablet computers, notebooks, vehicle-mounted communication devices, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication ) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low cost mobile phones, low cost tablet computers, and the like. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B), a TRP (Transmitter Receiver Point, transmitting and receiving node), and other wireless communication devices.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims (11)

1. A method in a user equipment for wireless communication, comprising:
receiving first information;
transmitting a first wireless signal;
wherein the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the first multiple access signature set is one of M1 multiple access signature sets of a first type; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets; the second time is before the first time in the time domain; the first information is transmitted between a base station and the user equipment through wireless signals; the first wireless signal is transmitted on PUSCH.
2. A method in a base station for wireless communication, comprising:
transmitting first information;
receiving a first wireless signal;
wherein the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the first multiple access signature set is one of M1 multiple access signature sets of a first type; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets; the second time is before the first time in the time domain; the first information is transmitted between a base station and the user equipment through wireless signals; the first wireless signal is transmitted on PUSCH.
3. A user equipment for wireless communication, comprising:
a first receiver module that receives first information;
a first transceiver module that transmits a first wireless signal;
wherein the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the first multiple access signature set is one of M1 multiple access signature sets of a first type; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets; the second time is before the first time in the time domain; the first information is transmitted between a base station and the user equipment through wireless signals; the first wireless signal is transmitted on PUSCH.
4. The apparatus of claim 3, wherein the first transceiver module further performs energy detection for a first frequency band; the energy detection is used to determine that the first frequency band is unoccupied, and frequency domain resources occupied by the first wireless signal belong to the first frequency band.
5. The apparatus of claim 3 or 4, wherein the first receiver module further receives second signaling; the second signaling is used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent.
6. The apparatus according to any one of claims 3 to 5, wherein the first receiver module further receives second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.
7. The apparatus according to any of claims 3 to 6, wherein the user equipment selects the target offset from the first set of offsets by itself.
8. The apparatus according to any of claims 3 to 7, wherein the first receiver module further receives third signaling; the third signaling is used to indicate M1 first-type candidate offset sets, the first offset set being one of the M1 first-type candidate offset sets; the third signaling includes the first information; the M1 is a positive integer.
9. The apparatus of claim 8, wherein the first receiver module further receives fourth signaling; the fourth signaling is used to indicate the M1 first type multiple access signature sets.
10. The apparatus according to any of claims 3 to 9, wherein the first set of offsets is used to determine the first set of multiple access signatures from the M1 first type of multiple access signature sets; or the first multiple access signature set is used to determine the first offset set from the M1 first class candidate offset sets.
11. A base station apparatus for wireless communication, comprising:
a first transmitter module that transmits first information;
a second receiver module that receives the first wireless signal;
wherein the first information is used to determine a first set of offsets comprising K1 first type offsets; the time domain resource occupied by the first wireless signal starts from a first time, the time interval between the first time and a second time is equal to a target offset, and the target offset is one of the K1 first-type offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the first multiple access signature set is one of M1 multiple access signature sets of a first type; the M1 first type candidate offset sets are respectively in one-to-one correspondence with the M1 first type multiple access signature sets; the second time is before the first time in the time domain; the first information is transmitted between a base station and the user equipment through wireless signals; the first wireless signal is transmitted on PUSCH.
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