CN110995629A - Method and device in wireless transmission - Google Patents

Method and device in wireless transmission Download PDF

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CN110995629A
CN110995629A CN201911196618.9A CN201911196618A CN110995629A CN 110995629 A CN110995629 A CN 110995629A CN 201911196618 A CN201911196618 A CN 201911196618A CN 110995629 A CN110995629 A CN 110995629A
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parameter
time
sequence
time interval
signaling
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CN110995629B (en
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张晓博
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Shanghai Langbo Communication Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • 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
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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  • Computer Networks & Wireless Communication (AREA)
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  • Spectroscopy & Molecular Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and a device in wireless transmission. The UE firstly determines a first sequence; the first wireless signal is then operated. Wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, at least one of the first sequence and { first parameter, second parameter } being correlated. The first parameter is related to a temporal position of the first time interval, and the second parameter is configurable. The operation is transmitting, the first sequence is used for scrambling of a first bit block used for generating the first wireless signal; or the operation is reception, the first sequence being used for descrambling of the first bit block. The invention can provide an interference randomization scheme for the wireless signals mapped at the time interval less than 1 millisecond, thereby improving the robustness of signal transmission.

Description

Method and device in wireless transmission
The present application is a divisional application of the following original applications:
application date of the original application: 2016 (7 months) and 15 days
- -application number of the original application: 201610561791.4
The invention of the original application is named: method and device in wireless transmission
Technical Field
The present application relates to a transmission scheme in a wireless communication system, and more particularly, to a method and apparatus for low latency transmission based on long term Evolution (LTE-LongTerm Evolution).
Background
The subject of reducing the delay of the LTE Network is determined in 3GPP (3rd Generation Partner Project) RAN (radio access Network) #63 times overall meeting. The delay of the LTE network includes air interface delay, signal processing delay, transmission delay between nodes, and the like. With the upgrade of the radio access network and the core network, the transmission delay is effectively reduced. With the application of new semiconductors with higher processing speeds, the signal processing delay is significantly reduced. In RAN #72 global session, based on the previous research results, 3GPP decided to standardize the shortened TTI (Transmission Time Interval) and the signal processing delay.
In the existing LTE system, one TTI or subframe or prb (physical Resource block) Pair (Pair) corresponds to 1ms (milli-second) in time. To reduce network delay, 3GPP decides to standardize shorter TTIs, such as introducing 2 OFDM (Orthogonal Frequency Division Multiplexing) symbols or a downlink TTI length of 1 slot, 2 OFDM symbols, 4 OFDM symbols or an uplink TTI length of 1 slot in an LTE FDD (Frequency Division duplex) system. A TTI length of 1 slot is introduced in uplink and downlink of an LTE TDD (Time division duplex) system.
LTE is an interference limited wireless communication system, and most physical channels in LTE are scrambled before modulation in order to randomize interference and improve transmission performance. The scrambling code used is a Gold sequence of order 31 and the generator of the scrambling code is reinitialized every subframe, i.e. the initial scrambling code sequence is linearly related to the subframe number within a radio frame.
Disclosure of Invention
After a short TTI is introduced, for example, a short TTI 2 OFDM symbols long, the existing scrambling code initialization method, i.e., re-initialization of each frame, cannot randomize interference between short TTIs, which may cause uplink and downlink transmissions to continuously suffer from strong interference in multiple short TTIs.
In order to reduce the air interface delay, an intuitive method is to design an entirely new TTI less than 1ms to be included in an existing LTE subframe, so that one existing LTE subframe may include a plurality of TTIs less than 1 ms. If the existing scrambling code sequence generation method in LTE is used to scramble the channel transmitted in the TTI less than 1ms, the transmission of multiple TTIs less than 1ms in a subframe all uses the subframe number of the subframe in the radio frame to initialize the scrambling code sequence, so that interference randomization between TTIs less than 1ms cannot be performed, which may cause continuous introduction of uplink and downlink transmission in multiple TTIs less than 1ms or strong interference to degrade transmission performance. The present application thus discloses a scheme that can provide interference randomization for transmissions in TTIs smaller than 1 ms.
The present application provides a solution to the interference randomization problem that exists after the introduction of a short TTI in LTE. It should be noted that, without conflict, the embodiments and features in the embodiments in the UE (User Equipment) of the present application may be applied to the base station, and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.
The application discloses a method used in a low-delay UE, which comprises the following steps:
-step a. determining a first sequence
-step b. operating on the first wireless signal;
wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, at least one of the first sequence and { first parameter, second parameter } being correlated. The first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in a first time window }, the second parameter is configurable. The duration of the first time unit is less than or equal to 1 millisecond and the duration of the first time window is greater than 1 millisecond. The operation is transmitting, the first sequence is used for scrambling of a first bit block used for generating the first wireless signal; or the operation is reception, the first sequence being used for descrambling of the first bit block.
The method randomizes the introduced or received interference among the time intervals TTI less than 1 millisecond by scrambling and descrambling the signals, thereby improving the robustness of signal transmission.
As an embodiment, the first wireless signal is used to obtain the first bit block.
As one embodiment, the first sequence includes a positive integer number of bits.
As one embodiment, the first bit block includes a positive integer number of bits.
As an embodiment, the first bit block comprises an output of a code block after channel coding. As a sub embodiment, the code Block is a TB (Transport Block). As a sub embodiment, the code Block is a part of a Transport Block (TB).
As an embodiment, the operation is sending, and the transmission Channel corresponding to the first wireless signal is an Uplink Shared Channel (UL-SCH) mapped in the first time interval. As a sub-embodiment, if the uplink shared channel mapped in the first time interval carries occupied bits (placeholder bits) of an ACK/NACK indication or a rank indication (RankIndication), the first radio signal is a fixed signal "1" corresponding to the occupied bits. As another sub-embodiment, if the uplink shared channel mapped in the first time interval carries an occupied-bit of an ACK/NACK Indication or a Rank Indication Repetition Indication (Rank Indication Repetition), any bit of the first wireless signal corresponding to the occupied-bit is the same as the first wireless signal of a bit previous to the bit.
As an embodiment, the operation is receiving, and the transmission Channel corresponding to the first wireless signal is a Downlink Shared Channel (DL-SCH) mapped in the first time interval.
As an embodiment, the operation is receiving, and the first wireless signal corresponds to a Physical Downlink Control CHannel (PDCCH) mapped in the first time interval.
As an embodiment, the operation is receiving, and a transmission CHannel corresponding to the first wireless signal is a Multicast CHannel (MCH) mapped in the first time interval.
As an embodiment, the operation is receiving, and the first wireless signal corresponds to a Physical Control Format Indicator CHannel (PCFICH) mapped in the first time interval.
As an embodiment, the first bit block sequentially passes through a Modulation Mapper (Modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a Resource element Mapper (Resource element Mapper), and an OFDM signal Generation (Generation) to obtain the first radio signal.
As one embodiment, the first time interval includes R OFDM symbols including a cyclic prefix, the R being a positive integer. As a sub-embodiment, the R is one of {2, 4, 7 }.
As an embodiment, the first time unit is a subframe, and the first time window is a radio frame.
As an embodiment, the first time window includes a positive integer number of time units, and the first time unit is one of the positive integer number of time units.
As an embodiment, the duration of the first time unit is 1 millisecond, and the duration of the first time window is a positive integer multiple of the duration of the first time unit.
As an embodiment, the first Time unit is a TS (Time Slot).
As an embodiment, the duration of the first time interval is less than or equal to 0.5 milliseconds.
As an embodiment, the first time unit comprises T time intervals, the first time interval being one of the T time intervals, T being a positive integer greater than 1. As an embodiment, the duration of at least two of the T time intervals is different. As an embodiment, the duration of the T time intervals is the same.
As an embodiment, for the first time unit, the second parameter is applied only to the first time interval. As a sub-embodiment, the second parameter is applied at least for a time interval outside the first time unit. As a sub-embodiment, the second parameter can only be applied to the first time interval.
As an embodiment, the time-domain position of the first time interval in the first time unit comprises at least one of { a time-domain start position of the first time interval in the first time unit, a time-domain end position of the first time interval in the first time unit, a length of a duration of the first time interval }.
As an embodiment, the first time unit is a subframe.
As an embodiment, the first time unit is a radio frame.
As an embodiment, the first time unit is a time unit composed of a plurality of consecutive subframes.
According to one aspect of the application, the above method is characterized by further comprising the steps of:
-step A0. receiving first signalling, said first signalling being used for determining said second parameter.
As an embodiment, the step a0 further includes the following steps:
-a step a10. initializing the first sequence generator at the start of the first time interval using the initial values of the generator of the first sequence.
As an embodiment, the first signaling is higher layer signaling.
As an embodiment, the first signaling is physical layer signaling.
As an embodiment, the first signaling is physical layer signaling, and the first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.
As an embodiment, the first signaling explicitly indicates the second parameter, the second parameter being a non-negative integer, the second parameter being used for determining the first sequence.
As an embodiment, the first signaling comprises a default configuration of the first sequence.
As an embodiment, the first signaling implicitly indicates the second parameter, the second parameter being an integer, the second parameter being used to determine the first sequence.
By the introduction of the first signaling, the scrambling sequence applied to the transmission in the time interval TTI of less than 1 millisecond can be configured more flexibly.
According to one aspect of the application, the above method is characterized in that at least one of { the time domain position of the first time interval in the first time unit, the second parameter } is used for determining a first value, which is an initial value of a generator of the first sequence.
As one embodiment, the first sequence is a pseudo-random sequence.
As one embodiment, the first numerical value is an integer.
According to an aspect of the application, the method as described above is further characterized in that at least one of { a time domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable. The first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is a V power of 2, and V is one of {0, 9, 13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30 }.
As an embodiment, the value range of the first variable is a first integer set, the V is 9, and at least one element included in the first integer set is an integer greater than 9 and smaller than 16. As a sub-embodiment, the first set of integers consists of 16 integers from 0 to 15.
As an embodiment, the value range of the first variable is a second set of integers, the V is one of {13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30}, and the second set of integers includes at least one element that is a positive integer less than or equal to 2 raised to the power of (30-V). As an embodiment, the first signaling is physical layer signaling, and the second parameter is applied only to the first time interval for the first time unit. The first variable is the second parameter, and the V is 14.
According to one aspect of the application, the method is characterized in that at least one of { the time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable. The first value and the first variable are linearly related, the linear correlation coefficient between the first value and the first variable is 1, the value range of the second variable is a third integer set, and at least one element included in the third integer set is an integer which is larger than 503 and smaller than 512.
As an embodiment, the third set of integers consists of 8 integers from 504 to 511.
As an example, the first value is given by formula cinit＝a·214+b·213+c·29+v2Is determined in which cinitRepresenting said first value, a, b, c each representing a related variable other than said first variable, v2Represents said first variable, v2Is an integer greater than 503 and less than 512.
According to an aspect of the present application, the above method is characterized in that at least one of the first value and { the first identity of the UE, the code index corresponding to the first wireless signal, the cell identity of the serving cell of the UE, and the second identity of the UE } is linearly related, and the linear correlation coefficients of the first value and { the first identity of the UE, the code index corresponding to the first wireless signal, the cell identity of the serving cell of the UE, and the second identity of the UE } are {16384, 8192, 1, 1}, respectively.
As an embodiment, the first identity of the UE is an RNTI (Radio Network temporary identity).
As an embodiment, a codeword index corresponding to the first wireless signal is 0 or 1.
As an embodiment, the Cell identity is a PCI (Physical Cell ID).
As an embodiment, the second identifier of the UE is an MBSFN (Multimedia Broadcast single frequency Network) area ID.
As an example, the first value is represented by a formula
Figure BDA0002294811360000071
Is determined in which cinitRepresents said first value, nRNTI，q，
Figure BDA0002294811360000072
A first identifier respectively representing the UE, a codeword index corresponding to the first wireless signal and the cell identifier, v1Represents said first variable, v1Is an integer greater than 9 and less than 16.
The application discloses a method used in a low-delay base station, which comprises the following steps:
-step a. determining a first sequence
-step b.
Wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, at least one of the first sequence and { first parameter, second parameter } being correlated. The first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in a first time window }, the second parameter is configurable. The duration of the first time unit is less than or equal to 1 millisecond and the duration of the first time window is greater than 1 millisecond. The performing is transmitting, the first sequence is used for scrambling of a first bit block used for generating the first wireless signal; or the performing is receiving, the first sequence being used for descrambling of the first bit block.
As an embodiment, the first wireless signal is used to obtain the first bit block.
As one embodiment, the first sequence includes a positive integer number of bits.
As one embodiment, the first bit block includes a positive integer number of bits.
As an embodiment, the first bit block comprises an output of a code block after channel coding. As a sub embodiment, the code Block is a TB (Transport Block). As a sub embodiment, the code Block is a part of a Transport Block (TB).
As an embodiment, the operation is receiving, and the transmission CHannel corresponding to the first wireless signal is an Uplink Shared CHannel (UL-SCH) mapped in the first time interval. As a sub-embodiment, if the uplink shared channel mapped in the first time interval carries occupied bits (placeholder bits) of an ACK/NACK indication or a rank indication (RankIndication), the first radio signal is a fixed signal "1" corresponding to the occupied bits. As another sub-embodiment, if the uplink shared channel mapped in the first time interval carries an occupied-bit of an ACK/NACK Indication or a Rank Indication Repetition Indication (Rank Indication Repetition), any bit of the first wireless signal corresponding to the occupied-bit is the same as the first wireless signal of a bit previous to the bit.
As an embodiment, the operation is sending, and the transmission CHannel corresponding to the first wireless signal is a Downlink Shared CHannel (DL-SCH) mapped in the first time interval.
As an embodiment, the operation is sending, and the first wireless signal corresponds to a Physical Downlink Control CHannel (PDCCH) mapped in the first time interval.
As an embodiment, the operation is sending, and a transmission CHannel corresponding to the first wireless signal is a Multicast CHannel (MCH) mapped in the first time interval.
As an embodiment, the operation is transmitting, and the first wireless signal corresponds to a Physical Control Format Indicator CHannel (PCFICH) mapped in the first time interval.
As an embodiment, the first bit block sequentially passes through a Modulation Mapper (Modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a Resource element Mapper (Resource element Mapper), and an OFDM signal Generation (Generation) to obtain the first radio signal.
As one embodiment, the first time interval includes R OFDM symbols including a cyclic prefix, the R being a positive integer. As a sub-embodiment, the R is one of {2, 4, 7 }.
As an embodiment, the first time unit is a subframe, and the first time window is a radio frame.
As an embodiment, the first time window includes a positive integer number of time units, and the first time unit is one of the positive integer number of time units.
As an embodiment, the duration of the first time unit is 1 millisecond, and the duration of the first time window is a positive integer multiple of the duration of the first time unit.
As an embodiment, the first Time unit is a TS (Time Slot).
As an embodiment, the duration of the first time interval is less than or equal to 0.5 milliseconds.
As an embodiment, the first time unit comprises T time intervals, the first time interval being one of the T time intervals, T being a positive integer greater than 1. As an embodiment, the duration of at least two of the T time intervals is different. As an embodiment, the duration of the T time intervals is the same.
As an embodiment, for the first time unit, the second parameter is applied only to the first time interval. As a sub-embodiment, the second parameter is applied at least for a time interval outside the first time unit. As a sub-embodiment, the second parameter can only be applied to the first time interval.
As an embodiment, the time-domain position of the first time interval in the first time unit comprises at least one of { a time-domain start position of the first time interval in the first time unit, a time-domain end position of the first time interval in the first time unit, a length of a duration of the first time interval }.
As an embodiment, the first time unit is a subframe.
As an embodiment, the first time unit is a radio frame.
As an embodiment, the first time unit is a time unit composed of a plurality of consecutive subframes.
According to one aspect of the application, the above method is characterized by further comprising the steps of:
step A0. sending a first signaling, said first signaling being used for determining said second parameter.
As an embodiment, the step a0 further includes the following steps:
-a step a10. initializing the first sequence generator at the start of the first time interval using the initial values of the generator of the first sequence.
As an embodiment, the first signaling is higher layer signaling.
As an embodiment, the first signaling is physical layer signaling.
As an embodiment, the first signaling is physical layer signaling, and the first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.
As an embodiment, the first signaling explicitly indicates the second parameter, the second parameter being a non-negative integer, the second parameter being used for determining the first sequence.
As an embodiment, the first signaling comprises a default configuration of the first sequence.
As an embodiment, the first signaling implicitly indicates the second parameter, the second parameter being an integer, the second parameter being used to determine the first sequence.
According to one aspect of the application, the above method is characterized by further comprising the steps of:
-step a1. receiving the second signaling over the backhaul link.
Wherein the second signaling is used by the base station to determine the second parameter.
As one embodiment, the backhaul link is used to connect two network devices.
For one embodiment, the backhaul link includes an X2 interface.
For one embodiment, the backhaul link includes a SI interface.
As one embodiment, the backhaul link includes a fiber optic direct link between two network devices.
As an embodiment, the base station determines the second parameter according to an input parameter including the second signaling.
As an embodiment, the second signaling is used to determine a third parameter, the third parameter being used by a sender of the second signaling to generate a scrambling sequence for the first time interval or the third parameter being used by a sender of the second signaling to generate a descrambling sequence for the first time interval, the second parameter and the third parameter being different.
As an embodiment, through the second signaling, two different network devices may coordinate and configure the second parameter and the third parameter, so as to achieve an effect of interference coordination.
According to one aspect of the application, the above method is characterized by further comprising the steps of:
step a2. send the third signaling over the backhaul link.
Wherein the third signaling is used by a recipient of the third signaling to determine the second parameter.
According to one aspect of the application, the above method is characterized in that at least one of { the time domain position of the first time interval in the first time unit, the second parameter } is used for determining a first value, which is an initial value of a generator of the first sequence.
As one embodiment, the first sequence is a pseudo-random sequence.
As one embodiment, the first numerical value is an integer.
As an embodiment, the starting point of the first time interval is after the starting point of the first time unit.
According to one aspect of the application, the method is characterized in that at least one of { the time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable. The first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is a V power of 2, and V is one of {0, 9, 13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30 }.
As an embodiment, the value range of the first variable is a first integer set, the V is 9, and at least one element included in the first integer set is an integer greater than 9 and smaller than 16. As a sub-embodiment, the first set of integers consists of 16 integers from 0 to 15.
As an embodiment, the value range of the first variable is a second set of integers, the V is one of {13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30}, and the second set of integers includes at least one element that is a positive integer less than or equal to 2 raised to the power of (30-V). For one embodiment, the first signaling is physical layer signaling, and the second parameter is applied only to the first time interval for the first time unit. The first variable is the second parameter, and the V is 14.
According to one aspect of the application, the method is characterized in that at least one of { the time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable. The first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is 1, a value range of the first variable is a third integer set, and at least one element included in the third integer set is an integer which is larger than 503 and smaller than 512.
As an embodiment, the third set of integers consists of 8 integers from 504 to 511.
As an example, the first value is given by formula cinit＝a·214+b·213+c·29+v2Is determined in which cinitRepresenting said first value, a, b, c each representing a related variable other than said first variable, v2Represents said first variable, v2Is an integer greater than 503 and less than 512.
According to an aspect of the present application, the above method is characterized in that at least one of the first value and { the first identity of the UE, the code index corresponding to the first wireless signal, the cell identity of the serving cell of the UE, and the second identity of the UE } is linearly related, and the linear correlation coefficients of the first value and { the first identity of the UE, the code index corresponding to the first wireless signal, the cell identity of the serving cell of the UE, and the second identity of the UE } are {16384, 8192, 1, 1}, respectively.
As an embodiment, the first identity of the UE is an RNTI.
As an embodiment, a codeword index corresponding to the first wireless signal is 0 or 1.
As an embodiment, the cell identity is a PCI.
As an embodiment, the second identity of the UE is an MBSFN area ID.
As an example, the first value is represented by a formula
Figure BDA0002294811360000121
Is determined in which cinitRepresents said first value, nRNTI，q，
Figure BDA0002294811360000122
A first identifier respectively representing the UE, a codeword index corresponding to the first wireless signal and the cell identifier, v1Represents said first variable, v1Is an integer greater than 9 and less than 16.
The application discloses a user equipment used for low delay, which comprises the following modules:
-a first processing module: for determining the first sequence
-a second processing module: for operating on the first wireless signal.
Wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, at least one of the first sequence and { first parameter, second parameter } being correlated. The first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in a first time window }, the second parameter is configurable. The duration of the first time unit is less than or equal to 1 millisecond and the duration of the first time window is greater than 1 millisecond. The operation is transmitting, the first sequence is used for scrambling of a first bit block used for generating the first wireless signal; or the operation is reception, the first sequence being used for descrambling of the first bit block.
As an embodiment, the first wireless signal is used to obtain the first bit block.
As one embodiment, the first sequence includes a positive integer number of bits.
As one embodiment, the first bit block includes a positive integer number of bits.
As an embodiment, the first bit block comprises an output of a code block after channel coding. As a sub embodiment, the code Block is a TB (Transport Block). As a sub embodiment, the code Block is a part of a Transport Block (TB).
As an embodiment, the operation is sending, and the transmission Channel corresponding to the first wireless signal is an Uplink Shared Channel (UL-SCH) mapped in the first time interval. As a sub-embodiment, if the uplink shared channel mapped in the first time interval carries occupied bits (placeholder bits) of an ACK/NACK indication or a rank indication (RankIndication), the first radio signal is a fixed signal "1" corresponding to the occupied bits. As another sub-embodiment, if the uplink shared channel mapped in the first time interval carries an occupied-bit of an ACK/NACK Indication or a Rank Indication Repetition Indication (Rank Indication Repetition), any bit of the first wireless signal corresponding to the occupied-bit is the same as the first wireless signal of a bit previous to the bit.
As an embodiment, the operation is receiving, and the transmission Channel corresponding to the first wireless signal is a Downlink Shared Channel (DL-SCH) mapped in the first time interval.
As an embodiment, the operation is receiving, and the first wireless signal corresponds to a Physical Downlink Control CHannel (PDCCH) mapped in the first time interval.
As an embodiment, the operation is receiving, and a transmission CHannel corresponding to the first wireless signal is a Multicast CHannel (MCH) mapped in the first time interval.
As an embodiment, the operation is receiving, and the first wireless signal corresponds to a Physical Control Format Indicator CHannel (PCFICH) mapped in the first time interval.
As an embodiment, the first bit block sequentially passes through a Modulation Mapper (Modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a Resource element Mapper (Resource element Mapper), and an OFDM signal Generation (Generation) to obtain the first radio signal.
As one embodiment, the first time interval includes R OFDM symbols including a cyclic prefix, the R being a positive integer. As a sub-embodiment, the R is one of {2, 4, 7 }.
As an embodiment, the first time unit is a subframe, and the first time window is a radio frame.
As an embodiment, the first time window includes a positive integer number of time units, and the first time unit is one of the positive integer number of time units.
As an embodiment, the duration of the first time unit is 1 millisecond, and the duration of the first time window is a positive integer multiple of the duration of the first time unit.
As an embodiment, the first Time unit is a TS (Time Slot).
As an embodiment, the duration of the first time interval is less than or equal to 0.5 milliseconds.
As an embodiment, the first time unit comprises T time intervals, the first time interval being one of the T time intervals, T being a positive integer greater than 1. As an embodiment, the duration of at least two of the T time intervals is different. As an embodiment, the duration of the T time intervals is the same.
As an embodiment, for the first time unit, the second parameter is applied only to the first time interval. As a sub-embodiment, the second parameter is applied at least for a time interval outside the first time unit. As a sub-embodiment, the second parameter can only be applied to the first time interval.
As an embodiment, the time-domain position of the first time interval in the first time unit comprises at least one of { a time-domain start position of the first time interval in the first time unit, a time-domain end position of the first time interval in the first time unit, a length of a duration of the first time interval }.
As an embodiment, the first time unit is a subframe.
As an embodiment, the first time unit is a radio frame.
As an embodiment, the first time unit is a time unit composed of a plurality of consecutive subframes.
According to an aspect of the present application, the user equipment is characterized in that the first processing module is further configured to receive a first signaling. The first signaling is used to determine the second parameter.
As an embodiment, the first signaling is higher layer signaling.
As an embodiment, the first signaling is physical layer signaling.
As an embodiment, the first signaling is physical layer signaling, and the first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.
As an embodiment, the first signaling explicitly indicates the second parameter, the second parameter being a non-negative integer, the second parameter being used for determining the first sequence.
As an embodiment, the first signaling comprises a default configuration of the first sequence.
As an embodiment, the first signaling implicitly indicates the second parameter, the second parameter being an integer, the second parameter being used to determine the first sequence.
According to an aspect of the application, the above user equipment is characterized in that the first processing module determines a first value using at least one of { a time domain position of the first time interval in the first time unit, the second parameter }, the first value being an initial value of a generator of the first sequence.
As an embodiment, the user equipment is further characterized in that the first processing module initializes the first sequence generator at a start point of the first time interval using an initial value of the generator of the first sequence.
According to an aspect of the application, the above user equipment is further characterized in that the first processing module determines the first variable using at least one of { temporal position of the first time interval in the first time unit, the second parameter }. The first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is a V power of 2, and V is one of {0, 9, 13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30 }.
As an embodiment, the value range of the first variable is a first integer set, the V is 9, and at least one element included in the first integer set is an integer greater than 9 and smaller than 16. As a sub-embodiment, the first set of integers consists of 16 integers from 0 to 15.
As an embodiment, the value range of the first variable is a second set of integers, the V is one of {13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30}, and the second set of integers includes at least one element that is a positive integer less than or equal to 2 raised to the power of (30-V). As an embodiment, the first signaling is physical layer signaling, and the second parameter is applied only to the first time interval for the first time unit. The first variable is the second parameter, and the V is 14.
The application discloses a base station device used for low delay, which comprises the following modules:
-a third processing module: for determining the first sequence
-a fourth processing module: for executing the first wireless signal.
Wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, at least one of the first sequence and { first parameter, second parameter } being correlated. Wherein the first parameter is related to at least the former of { temporal position of the first time interval in the first time unit, temporal position of the first time unit in a first time window }, the second parameter being configurable. The duration of the first time unit is less than or equal to 1 millisecond and the duration of the first time window is greater than 1 millisecond. The performing is transmitting, the first sequence is used for scrambling of a first bit block used for generating the first wireless signal; or the performing is receiving, the first sequence being used for descrambling of the first bit block.
According to an aspect of the application, the base station device is characterized in that the third processing module is further configured to send the first signaling. Wherein the first signaling is used to determine the second parameter.
As an embodiment, the first signaling is higher layer signaling.
As an embodiment, the first signaling is physical layer signaling.
As an embodiment, the first signaling is physical layer signaling, and the first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.
As an embodiment, the first signaling explicitly indicates the second parameter, the second parameter being a non-negative integer, the second parameter being used for determining the first sequence.
As an embodiment, the first signaling comprises a default configuration of the first sequence.
As an embodiment, the first signaling implicitly indicates the second parameter, the second parameter being an integer, the second parameter being used to determine the first sequence.
According to an aspect of the application, the base station device is characterized in that the third processing module is further configured to at least one of:
-receiving second signaling over the backhaul link. Wherein the second signaling is used by the base station to determine the second parameter.
-sending the third signaling over the backhaul link. Wherein the third signaling is used by a recipient of the third signaling to determine the second parameter.
According to an aspect of the application, the base station apparatus is characterized in that the third processing module determines a first value using at least one of { time domain position of the first time interval in the first time unit, the second parameter }, the first value being an initial value of a generator of the first sequence.
As an embodiment, the base station device is further characterized in that the third processing module initializes the first sequence generator at a start point of the first time interval using an initial value of the generator of the first sequence.
According to an aspect of the application, the base station apparatus as described above is further characterized in that the third processing module determines the first variable using at least one of { time domain position of the first time interval in the first time unit, the second parameter }. The first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is a V power of 2, and V is one of {0, 9, 13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30 }.
As an embodiment, the value range of the first variable is a first integer set, the V is 9, and at least one element included in the first integer set is an integer greater than 9 and smaller than 16. As a sub-embodiment, the first set of integers consists of 16 integers from 0 to 15.
As an embodiment, the value range of the first variable is a second set of integers, the V is one of {13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30}, and the second set of integers includes at least one element that is a positive integer less than or equal to 2 raised to the power of (30-V). As an embodiment, the first signaling is physical layer signaling, and the second parameter is applied only to the first time interval for the first time unit. The first variable is the second parameter, and the V is 14.
Compared with the prior art, the method has the following technical advantages:
-supporting randomization of interference between Transmission Time Intervals (TTIs) of less than 1ms, improving robustness of signal transmission;
flexibly configuring the scrambling sequences to avoid collisions of the scrambling sequences to the maximum extent.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 shows a downlink transmission flow diagram according to an embodiment of the present application;
fig. 2 shows an uplink transmission flow diagram according to an embodiment of the present application;
FIG. 3 shows a schematic diagram of a first sequence versus a first time interval according to an embodiment of the present application;
FIG. 4 shows a first sequence versus a first time interval in accordance with an embodiment of the present application;
FIG. 5 illustrates a first time interval versus first time window in accordance with an embodiment of the present application;
FIG. 6 shows a first sequence generation diagram according to an embodiment of the present application;
FIG. 7 shows a block diagram of a processing device in a User Equipment (UE) according to an embodiment of the present application;
fig. 8 shows a block diagram of a processing means in a base station according to an embodiment of the present application;
Detailed Description
The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.
Example 1
Embodiment 1 illustrates a downlink transmission flow chart, as shown in fig. 1. In fig. 1, base station N1 is the maintaining base station for the serving cell of UE U2, and the steps identified in blocks F1, F2, and F3, respectively, are optional.
For theBase station N1Receiving a second signaling in step S101, transmitting a first signaling in step S102, transmitting a third signaling in step S103, initializing a first sequence generator at a start point of a first time interval using an initial value of the generator of the first sequence in step S104; the first sequence is determined in step S105, and the first wireless signal is transmitted in step S106.
For theUE U2Receiving a first signaling in step S201, initializing a first sequence generator at a start point of a first time interval using an initial value of the generator of the first sequence in step S202; the first sequence is determined in step S203 and the first wireless signal is received in step S204.
In embodiment 1, the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, at least one of the first sequence and { first parameter, second parameter } being correlated. The first parameter is related to at least the former of { a temporal position of the first time interval in a first time unit, a temporal position of the first time unit in a first time window }. Second signaling is used by a base station to determine the second parameter, first signaling is used by a User Equipment (UE) to determine the second parameter, and third signaling is used by a recipient to determine the second parameter. At least one of the first sequence and { the first parameter, the second parameter } is correlated. The base station initializes a generator of the first sequence at a start of the first time interval according to at least one of { the first parameter, the second parameter }. The first sequence is used for scrambling of a first bit block used for generating the first wireless signal. The first sequence is a pseudo-random sequence.
As sub-embodiment 1 of embodiment 1, the temporal location of the first time interval in the first time unit includes at least one of { a temporal starting location of the first time interval in the first time unit, a temporal ending location of the first time interval in the first time unit, a length of a duration of the first time interval }.
As sub-embodiment 2 of embodiment 1, the first signaling is transmitted through DCI (Downlink Control Information).
As sub-embodiment 3 of embodiment 1, the second signaling is obtained through the X2 interface.
As a sub-embodiment 4 of embodiment 1, at least one of { a time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable. The initial value of the generator of the first sequence is linearly related to the first variable, the linear correlation coefficient between the initial value of the generator of the first sequence and the first variable is the V-th power of 2, and V is one of {0, 9, 13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30 }.
As sub-embodiment 5 of embodiment 1, a transport Channel corresponding to the first radio signal is a Downlink Shared Channel (DL-SCH) mapped in the first time interval.
As sub-embodiment 6 of embodiment 1, a transmission CHannel corresponding to the first wireless signal is a Multicast CHannel (MCH) mapped in the first time interval.
As a sub-embodiment 7 of embodiment 1, a Physical Downlink Control CHannel (PDCCH) mapped to the first radio signal in the first time interval corresponds to the first radio signal.
As a sub-embodiment 8 of the embodiment 1, a Physical Control Format Indicator CHannel (PCFICH) mapped in the first time interval corresponds to the first wireless signal.
Example 2
Embodiment 2 illustrates an uplink transmission flow chart, as shown in fig. 2. In fig. 2, base station N3 is the maintaining base station for the serving cell of UE U4, and the steps identified in blocks F5, F6, and F7, respectively, are optional.
For theBase station N3Receiving a second signaling in step S301, transmitting a first signaling in step S302, and transmitting a third signaling in step S303; the first sequence is determined in step S305 and the first wireless signal is received in step S306.
For theUE U4Receiving a first signaling in step S401; the first sequence is determined in step S403, and the first wireless signal is transmitted in step S404.
In embodiment 2, the first wireless signal occupies a first time interval in the time domain, the duration of the first time interval is less than 1 millisecond, and at least one of the first sequence and { first parameter, second parameter } is correlated. The first parameter is related to at least the former of { a temporal position of the first time interval in a first time unit, a temporal position of the first time unit in a first time window }. Second signaling is used by a base station to determine the second parameter, first signaling is used by a User Equipment (UE) to determine the second parameter, and third signaling is used by a recipient to determine the second parameter. At least one of the first sequence and { the first parameter, the second parameter } is correlated. The user equipment initializes a generator of the first sequence at a start of the first time interval according to at least one of { the first parameter, the second parameter }. The first sequence is used for scrambling of a first bit block used for generating the first wireless signal. The first sequence is a pseudo-random sequence.
As sub-embodiment 1 of embodiment 2, the temporal location of the first time interval in the first time unit includes at least one of { a temporal starting location of the first time interval in the first time unit, a temporal ending location of the first time interval in the first time unit, a length of a duration of the first time interval }.
As sub-embodiment 2 of embodiment 2, the first signaling is transmitted through DCI (Downlink Control Information).
As sub-embodiment 3 of embodiment 2, the second signaling is acquired through the X2 interface.
As a sub-embodiment 4 of embodiment 2, at least one of { a time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable. The initial value of the generator of the first sequence is linearly related to the first variable, the linear correlation coefficient between the initial value of the generator of the first sequence and the first variable is the V-th power of 2, and V is one of {0, 9, 13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30 }.
As a sub-embodiment 5 of embodiment 2, a transport CHannel corresponding to the first wireless signal is an Uplink Shared CHannel (UL-SCH) mapped in the first time interval.
Example 3
Embodiment 3 illustrates a schematic diagram of the relationship between the first sequence and the first time interval, as shown in fig. 3. In fig. 3, the horizontal axis represents time and the vertical axis represents frequency, the diagonal line identifies the radio signals mapped in time interval 1, and the unfilled time-frequency region identifies the radio signals mapped in time interval 2. Scrambling the wireless signal mapped in the time interval 1 by adopting a sequence 1, and scrambling the wireless signal mapped in the time interval 2 by adopting a sequence 2.
As a sub-embodiment 1 of embodiment 3, the sequence 1 is determined according to the position of the time interval 1 within the time unit, and the sequence 2 is respectively determined according to the position of the time interval 2 within the time unit.
As a sub-embodiment 2 of the embodiment 3, the sequence 1 and the sequence 2 are determined according to the second parameter of the corresponding network configuration, respectively.
Example 4
Embodiment 4 illustrates a schematic diagram of the relationship between the first sequence and the first time interval, as shown in fig. 4. In fig. 4, the horizontal axis represents time and the vertical axis represents frequency, the diagonal line identifies the radio signals mapped to time interval 1, the vertical line identifies the radio signals mapped to time interval 2, and so on, the unfilled time frequency region identifies the radio signals mapped to time interval 7. Scrambling the wireless signal mapped in the time interval 1 with sequence 1, scrambling the wireless signal mapped in the time interval 2 with sequence 2, and so on, scrambling the wireless signal mapped in the time interval 6 with sequence 6, and scrambling the wireless signal mapped in the time interval 7 with sequence W, where W is one of the sequence 1 to the sequence 6.
As sub-embodiment 1 of embodiment 4, the sequence 1 to the sequence 6 are determined according to the positions of the time intervals 1 to 6 within the time unit, respectively. The sequence W is predefined as one of the sequence 1 to the sequence 6.
As a sub-embodiment 2 of the embodiment 4, the sequence 1 to the sequence 6 and the sequence W are respectively determined according to a second parameter of the corresponding network configuration.
As sub-embodiment 3 of embodiment 4, the sequence 1 to the sequence 6 are determined according to the positions of the time intervals 1 to 6 within the time unit, respectively. The sequence W is determined according to a second parameter of the network configuration.
Example 5
Example 5 illustrates a schematic diagram of a relationship between a first time unit and a first time window, as shown in fig. 5. In fig. 5, the time regions marked by cross lines represent first time units and the unfilled time regions represent first time windows. Wherein the first time window includes a positive integer number of time units, and the first time unit is one of the positive integer number of time units.
In sub-embodiment 1 of embodiment 5, the first time unit is a subframe and the first time window is a radio frame.
In sub-embodiment 2 of embodiment 5, the first Time unit is one TS (Time Slot).
Example 6
Embodiment 6 illustrates a first sequence generation diagram, as shown in fig. 6. In FIG. 6, the first sequence consists of sequence X1(i) And sequence X2(i) XOR generation, the small boxes marked with numbers representing the generation sequence X1(i) And sequence X2(i) Wherein the number is an index to the register. Sequence X1(i) And sequence X2(i) Determined by the initial values of the corresponding 31-bit registers. Sequence X1(i) The register initial value of (a) is a fixed value. Sequence X2(i) The initial value in register 0, 9, 13, 14, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, 30 is associated with the first variable.
In sub-embodiment 1 of embodiment 6, the first variable is used to initialize the generation sequence X2(i) Register 9 to register 12, wherein the first variable range is an integer greater than 9 and less than 16.
In sub-embodiment 2 of embodiment 6, the first variable is used to initialize the generation sequence X2(i) Register 0 to register 8, where the first variable range is an integer greater than 503 and less than 512.
In sub-embodiment 3 of embodiment 6, the first variable is used to initialize the generation sequence X2(i) Of the register 30.
Example 7
Embodiment 7 illustrates a block diagram of a processing device in a user equipment, as shown in fig. 7. In fig. 7, the ue processing apparatus 300 is mainly composed of a first processing module 301 and a second processing module 302. The first processing module 301 is configured to determine a first sequence. The second processing module 302 is configured to operate the first wireless signal. The first processing module 301 is further configured to receive a first signaling, which is used to determine the second parameter.
In embodiment 7, the first processing module 301 determines the first sequence by at least one of { first parameter, second parameter }. The first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in the first time window }. The second parameter is determined by the first signaling received by the first processing module 301. The duration of the first time unit is less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond, and the first time interval is less than or equal to the first time unit. The operation in the second processing module 302 is transmitting, the first sequence being used for scrambling of a first bit block used for generating the first wireless signal; or the operation in the second processing module 302 is reception, the first sequence is used for descrambling of the first bit block.
In sub-embodiment 1 of embodiment 7, at least one of { a time domain position of the first time interval in the first time unit, the second parameter } is used to determine a first value, which is an initial value of a generator of the first sequence.
In sub-embodiment 2 of embodiment 7, the initial value of the generator of the first sequence initializes the first sequence generator at the start of the first time interval.
In sub-embodiment 3 of embodiment 7, the first signaling is physical layer signaling, and the first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.
Example 8
Embodiment 8 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 8. In fig. 8, the base station processing apparatus 100 is mainly composed of a third processing module 101 and a fourth processing module 102. The third processing module 101 is configured to determine the first sequence. The fourth processing module 102 is configured to operate the first wireless signal. The third processing module 101 is further configured to send a first signaling, which is used to determine the second parameter. The third processing module 101 is further configured to receive a second signaling over a backhaul link, the second signaling being used by the base station to determine the second parameter. The third processing module 101 is further configured to send third signaling over the backhaul link, the third signaling being used by a receiver of the third signaling to determine the second parameter.
In embodiment 8, the third processing module 101 determines the first sequence by at least one of { first parameter, second parameter }. The first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in the first time window }. The second parameter is determined by the second signaling received by the third processing module 101. The duration of the first time unit is less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond, and the first time interval is less than or equal to the first time unit. The operation in the fourth processing module 102 is transmitting, the first sequence is used for scrambling of a first bit block used for generating the first wireless signal; or the operation in the fourth processing module 102 is receiving, the first sequence is used for descrambling of the first bit block.
In sub-embodiment 1 of embodiment 8, at least one of { a time domain position of the first time interval in the first time unit, the second parameter } is used to determine a first value, which is an initial value of a generator of the first sequence.
In sub-embodiment 2 of embodiment 8, the initial value of the generator of the first sequence initializes the generator of the first sequence at the start of the first time interval.
In sub-embodiment 3 of embodiment 8, the first signaling is physical layer signaling, and the first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.
In sub-embodiment 4 of embodiment 8, said backhaul link comprises an X2 interface.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in 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 by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, a network card, a low power consumption device, a vehicle-mounted communication device, and other wireless communication devices. The base station or network side device 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, and other wireless communication devices.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (9)

1. A method to be used in a low latency user equipment, comprising the steps of:
receiving first signaling, the first signaling explicitly indicating a second parameter, the second parameter being a non-negative integer;
determining a first sequence;
operating the first wireless signal;
wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, the first sequence being related to at least the second one of the first parameter and the second parameter; the first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in a first time window }; the duration of the first time unit is less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond; a first bit block is used to generate the first wireless signal; the operation is transmitting, the first sequence being used for scrambling of the first bit block; or the operation is reception, the first sequence being used for descrambling of the first bit block; { the time-domain position of the first time interval in the first time unit, the second parameter }, at least one of which is used to determine a first value, which is an initial value of a generator of the first sequence; { the time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable; the first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is a V power of 2, the value range of the first variable is a first integer set, V is 9, and at least one element included in the first integer set is an integer which is larger than 9 and smaller than 16.
2. A method used in a low-latency base station, comprising the steps of:
transmitting first signaling, the first signaling explicitly indicating a second parameter, the second parameter being a non-negative integer;
determining a first sequence;
executing the first wireless signal;
wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, the first sequence being related to at least the second one of the first parameter and the second parameter; the first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in a first time window }; the duration of the first time unit is less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond; a first bit block is used to generate the first wireless signal; the performing is transmitting, the first sequence being used for scrambling of the first bit block; or the performing is receiving, the first sequence being used for descrambling of the first bit block; { the time-domain position of the first time interval in the first time unit, the second parameter }, at least one of which is used to determine a first value, which is an initial value of a generator of the first sequence; { the time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable; the first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is a V power of 2, the value range of the first variable is a first integer set, V is 9, and at least one element included in the first integer set is an integer which is larger than 9 and smaller than 16.
3. The method of claim 2, wherein at least one of the first numerical value and { first identification of a receiver of the first signaling, code index corresponding to the first wireless signal, cell identification of a serving cell of a user equipment of the receiver of the first signaling, second identification of a receiver of the first signaling } is linearly related, and wherein linear correlation coefficients of the first numerical value and { the first identification of a receiver of the first signaling, code index corresponding to the first wireless signal, cell identification of a serving cell of a user equipment of a receiver of the first signaling, and the second identification of a receiver of the first signaling } are {16384, 8192, 1, 1}, respectively.
4. A user equipment for low latency, comprising:
a first processing module: for receiving first signaling explicitly indicating a second parameter, the second parameter being a non-negative integer, and determining a first sequence;
a second processing module: for operating on the first wireless signal;
wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, the first sequence being related to at least the second one of the first parameter and the second parameter; the first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in a first time window }; the duration of the first time unit is less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond; a first bit block is used to generate the first wireless signal; the operation is transmitting, the first sequence being used for scrambling of the first bit block; or the operation is reception, the first sequence being used for descrambling of the first bit block; { the time-domain position of the first time interval in the first time unit, the second parameter }, at least one of which is used to determine a first value, which is an initial value of a generator of the first sequence; { the time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable; the first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is a V power of 2, the value range of the first variable is a first integer set, V is 9, and at least one element included in the first integer set is an integer which is larger than 9 and smaller than 16.
5. The UE of claim 4, wherein at least one of { a time domain position of the first time interval in the first time unit, the second parameter } is used to determine a second variable; the first value and the second variable are linearly related, the linear correlation coefficient between the first value and the second variable is 1, the value range of the second variable is a third integer set, and at least one element included in the third integer set is an integer which is larger than 503 and smaller than 512.
6. The user equipment according to claim 4 or 5, wherein the first signaling is higher layer signaling.
7. A base station device used for low latency, comprising:
-a third processing module: for transmitting first signaling explicitly indicating a second parameter, the second parameter being a non-negative integer, and determining a first sequence;
-a fourth processing module: for executing the first wireless signal;
wherein the first wireless signal occupies a first time interval in the time domain, the first time interval having a duration of less than 1 millisecond, the first sequence being related to at least the second one of the first parameter and the second parameter; wherein the first parameter is related to at least the former of { a temporal position of the first time interval in the first time unit, a temporal position of the first time unit in a first time window }; the duration of the first time unit is less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond; a first bit block is used to generate the first wireless signal; the performing is transmitting, the first sequence being used for scrambling of the first bit block; or the performing is receiving, the first sequence being used for descrambling of the first bit block; { the time-domain position of the first time interval in the first time unit, the second parameter }, at least one of which is used to determine a first value, which is an initial value of a generator of the first sequence; { the time-domain position of the first time interval in the first time unit, the second parameter } is used for determining a first variable; the first value and the first variable are linearly related, a linear correlation coefficient between the first value and the first variable is a V power of 2, the value range of the first variable is a first integer set, V is 9, and at least one element included in the first integer set is an integer which is larger than 9 and smaller than 16.
8. The base station apparatus according to claim 7, wherein the first signaling is higher layer signaling.
9. The base station device of claim 7, wherein the third processing module is further configured to at least one of:
receiving second signaling over the backhaul link; wherein the second signaling is used by the base station to determine the second parameter;
sending a third signaling over the backhaul link; wherein the third signaling is used by a recipient of the third signaling to determine the second parameter.
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