WO2019097703A1 - ユーザ端末及び無線通信方法 - Google Patents
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- H—ELECTRICITY
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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Definitions
- the present invention relates to a user terminal and a wireless communication method in a next-generation mobile communication system.
- LTE Long Term Evolution
- Non-Patent Document 1 LTE-A (LTE-Advanced), FRA (Future Radio Access), 4G, 5G, 5G + (plus), NR ( Also referred to as New RAT), LTE Rel. 14, 15 and so on.
- downlink Downlink
- uplink are performed using subframes of 1 ms (also referred to as Transmission Time Interval (TTI) or the like).
- TTI Transmission Time Interval
- UL Uplink
- the subframe is a transmission time unit of one channel-coded data packet, and is a processing unit such as scheduling, link adaptation, and retransmission control (HARQ: Hybrid Automatic Repeat reQuest).
- HARQ Hybrid Automatic Repeat reQuest
- the user terminal can use an uplink control channel (for example, PUCCH: Physical Uplink Control Channel) or an uplink data channel (for example, PUSCH: Physical Uplink Shared Channel).
- the uplink control information (UCI: Uplink Control Information) is transmitted using this.
- the configuration (format) of the uplink control channel is called PUCCH format (PF: PUCCH Format) or the like.
- a user terminal multiplexes and transmits UL channel and DMRS within 1 ms TTI.
- multiple DMRSs of different layers (or different user terminals) of the same user terminal may perform cyclic shift (CS) and / or orthogonal spreading codes (e.g. orthogonal cover code (OCC: Orthogonal Cover Code) Orthogonal multiplexing using the
- E-UTRA Evolved Universal Terrestrial Radio Access
- E-UTRAN Evolved Universal Terrestrial Radio Access Network
- hopping a DMRS reference sequence (DMRS sequence) for a UL channel every two slots included in a 1 ms subframe eg, sequence group hopping Inter-cell interference is mitigated with SGH (Sequence Group Hopping, also referred to simply as group hopping) or sequence hopping).
- SGH Sequence Group Hopping
- the first uplink control channel short PUCCH, PUCCH format 0
- the second uplink control channel also referred to as long PUCCH, PUCCH format 1, 3 or 4 etc.
- a period for example, 4 to 14 symbols
- the allocation period and / or start symbol of the uplink control channel (for example, long PUCCH) is set flexibly in a predetermined slot.
- the allocation period and / or start symbol of the uplink control channel (for example, long PUCCH) is set flexibly in a predetermined slot.
- UL transmissions of each UE are supported using uplink control channels that differ in duration and / or start symbol per slot.
- the present invention has been made in view of the foregoing, and provides a user terminal and a wireless communication method capable of appropriately setting a sequence applied to a reference signal and / or an uplink control channel or the like in a future wireless communication system. Make one of the goals.
- One aspect of the user terminal of the present invention is the transmission unit configured to transmit the demodulation reference signal to which the predetermined sequence is applied and / or the uplink control channel in a predetermined slot, and the presence or absence of application of frequency hopping in the predetermined slot. And a controller configured to control a predetermined sequence to be applied in a predetermined slot.
- FIGS. 1A and 1B are diagrams showing configuration examples of uplink control channels in a future wireless communication system.
- FIG. 2 is a diagram showing an example of a PUCCH format in a future wireless communication system.
- FIG. 3A and FIG. 3B are diagrams showing an example of a long PUCCH period and an example of OCC multiple capacity for each period.
- FIG. 4A and FIG. 4B are diagrams for explaining the relationship between OCC multiple capacity and applied sequence.
- 5A and 5B are diagrams showing an example of a predetermined sequence in the present embodiment.
- FIG. 6 is a diagram for explaining a predetermined sequence applied to DMRS for PUSCH.
- 7A and 7B are diagrams for explaining predetermined sequences applied to DMRS for PUSCH.
- FIG. 8A and 8B are diagrams showing an example of the predetermined sequence in the present embodiment.
- 9A and 9B are diagrams showing an example of a group number (or a predetermined sequence index) corresponding to each wireless resource.
- 10A and 10B are diagrams showing other examples of group numbers (or predetermined sequence indexes) corresponding to the respective radio resources.
- 11A and 11B are diagrams showing other examples of group numbers (or predetermined sequence indexes) corresponding to respective radio resources.
- 12A and 12B are diagrams showing other examples of group numbers (or predetermined sequence indexes) corresponding to the respective radio resources.
- FIG. 13 is a diagram showing an example of the CS index corresponding to each radio resource.
- FIG. 14 is a diagram showing another example of the CS index corresponding to each radio resource.
- FIG. 15 is a diagram showing an example of a schematic configuration of a wireless communication system according to the present embodiment.
- FIG. 16 is a diagram showing an example of the entire configuration of the radio base station according to the present embodiment.
- FIG. 17 is a diagram showing an example of a functional configuration of a radio base station according to the present embodiment.
- FIG. 18 is a diagram showing an example of the entire configuration of the user terminal according to the present embodiment.
- FIG. 19 is a diagram showing an example of a functional configuration of a user terminal according to the present embodiment.
- FIG. 20 is a diagram showing an example of a hardware configuration of a radio base station and a user terminal according to the present embodiment.
- DMRSs used for PUSCH demodulation are allocated to one symbol of each slot (two symbols in 1 ms TTI).
- a sequence based on Zadoff-chu (ZC) is used as a DMRS reference sequence (also referred to as a DMRS sequence or the like).
- the number of DMRS sequences is set to 30 or 60 depending on the bandwidth.
- the number of DMRS sequences is 30 if the bandwidth is equal to or less than 5 physical resource blocks (PRB: also referred to as Physical Resource Blocks, RBs), and 30 if the bandwidth is 6 PRBs or more. It is 60 pieces.
- PRB physical resource blocks
- RBs Physical Resource Blocks
- the DMRS sequence is hopped for each slot in a TTI of 1 ms in order to avoid the DMRS sequence becoming identical continuously among the plurality of user terminals.
- two types of hopping methods are used.
- sequence group hopping In sequence group hopping (SGH: also referred to simply as group hopping), the above-mentioned group number (u) is hopped in an intra-TTI slot unit of 1 ms.
- the group number (u) of each slot is determined based on the hopping pattern (f gh ) and the sequence shift pattern (f ss ).
- the hopping pattern and / or the sequence shift pattern may be based on physical cell ID (cell ID) or virtual cell ID.
- the user terminal may grasp the physical cell ID from the sequence number of the synchronization signal (PSS / SSS) and the virtual cell ID by RRC signaling.
- PSS / SSS sequence number of the synchronization signal
- RRC signaling In the existing LTE system, for example, 17 hopping patterns and 30 sequence shift patterns are used.
- sequence hopping the above-mentioned base sequence number (v) is hopped in slot units within one TTI.
- SGH or sequence hopping can be applied to the DMRS sequence in order to randomize inter-cell interference.
- uplink control channels of a plurality of formats for example, NR PUCCH format (NR PF), also simply referred to as PUCCH format
- NR PUCCH format for example, NR PUCCH format (NR PF), also simply referred to as PUCCH format
- FIG. 1 is a diagram illustrating an example of PUCCH in a future wireless communication system.
- a PUCCH short PUCCH or first uplink control channel
- a relatively small number of symbols e.g. 1-2 symbols
- a PUCCH long PUCCH or second uplink control channel
- a larger number of symbols e.g. 4 to 14 symbols
- the short PUCCH may be arranged in a predetermined number of symbols (eg, 1 to 2 symbols) from the end of the slot.
- the arrangement symbol of the short PUCCH is not limited to the end of the slot, and may be a predetermined number of symbols at the beginning or in the middle of the slot.
- the short PUCCH is allocated to one or more frequency resources (eg, one or more PRBs).
- frequency resources eg, one or more PRBs.
- short PUCCHs are arranged in continuous PRBs, but may be arranged in non-continuous PRBs.
- the short PUCCH may be time division multiplexed and / or frequency division multiplexed with an uplink data channel (hereinafter also referred to as PUSCH) in a slot.
- the short PUCCH may be time division multiplexed and / or frequency division multiplexed with the downlink data channel (hereinafter also referred to as PDSCH) and / or the downlink control channel (hereinafter referred to as PDCCH: Physical Downlink Control Channel) in a slot. Good.
- a multicarrier waveform for example, Orthogonal Frequency Division Multiplexing (OFDM) waveform
- OFDM Orthogonal Frequency Division Multiplexing
- a single carrier waveform for example, DFT-s-OFDM (Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing) Waveforms may be used.
- DFT-s-OFDM Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing
- the long PUCCH is arranged over a larger number of symbols (eg, 4 to 14 symbols) than the short PUCCH.
- the long PUCCH is not arranged in the first predetermined number of symbols of the slot, but may be arranged in the first predetermined number of symbols.
- the long PUCCH may be configured with a smaller number of frequency resources (eg, one or two PRBs) than the short PUCCH to obtain a power boosting effect, or with the short PUCCH. It may be configured with an equal number of frequency resources.
- the long PUCCH may be frequency division multiplexed with the PUSCH in the slot. Also, the long PUCCH may be time division multiplexed with the PDCCH in the slot. Also, the long PUCCH may be arranged in the same slot as the short PUCCH.
- a single carrier waveform eg, DFT-s-OFDM waveform
- a multi-carrier waveform eg, OFDM waveform
- frequency hopping may be applied to the long PUCCH in which frequency resources hop at a predetermined timing in a slot.
- the timing at which the frequency resource hops in the long PUCCH may be called hopping boundary, hopping timing, hopping pattern and so on.
- FIG. 2 is a diagram showing an example of a PUCCH format in a future wireless communication system.
- a plurality of PUCCH formats (NR PUCCH format) in which the number of symbols and / or the number of bits of UCI are different are shown.
- the PUCCH format shown in FIG. 2 is merely an example, and the contents and numbers of PUCCH formats 0 to 4 are not limited to those shown in FIG.
- PUCCH format 0 is a short PUCCH for UCI of 2 bits or less (up to 2 bits), and is also called a sequence-based short PUCCH or the like.
- the short PUCCH conveys UCI (for example, HARQ-ACK and / or SR) of 2 bits or less in 1 or 2 symbols.
- PUCCH format 1 is a long PUCCH for UCI of 2 bits or less.
- the long PUCCH transmits UCI of 2 bits or less in 4 to 14 symbols.
- a plurality of user terminals perform block-wise spreading of time-domain (time-domain) using, for example, cyclic shift (CS) and / or orthogonal spreading code (OCC). May be code division multiplexed (CDM) within the same PRB.
- CS cyclic shift
- OCC orthogonal spreading code
- PUCCH format 2 is a short PUCCH for UCI more than 2 bits.
- the short PUCCH transmits UCI of more than 2 bits in 1 or 2 symbols.
- PUCCH format 3 is a long PUCCH for UCI having more than N bits, and a single user terminal is multiplexed in the same PRB.
- N may be a predetermined value (for example, 2).
- the long PUCCH transmits UCI larger than N bits (or more than N bits) in 4 to 14 symbols.
- PUCCH format 3 is different from PUCCH format 4 below in that a plurality of user terminals are not multiplexed in the same PRB.
- OCC may be applied before DFT spreading.
- PUCCH format 4 is a long PUCCH for UCI with more than 2 bits, and a plurality of user terminals can be multiplexed in the same PRB.
- the long PUCCH transmits UCI of more than 2 bits and less than N bits (or less than N bits) in 4 to 14 symbols.
- multiple user terminals may be code division multiplexed in the same PRB by block spreading in the time domain using CS and / or OCC.
- a plurality of user terminals are multiplexed using at least one of block diffusion (frequency domain) prior to discrete Fourier transform (DFT), frequency division multiplexing (FDM), and comb-like subcarriers (Comb) May be
- DFT discrete Fourier transform
- FDM frequency division multiplexing
- Comb comb-like subcarriers
- OCC before DFT spreading may not be applied to PUCCH format 4.
- the threshold N of the UCI bit number may be an integer larger than 3 (or 3 or more), and may be defined in the specification, or higher layer signaling (for example, RRC (Radio Resource Control) signaling, broadcast Information (eg, MIB: Master Information Block), system information (eg, SIB: System Information Block, RMSI: Remaining Minimum System Information, etc.) may be set.
- RRC Radio Resource Control
- broadcast Information eg, MIB: Master Information Block
- system information eg, SIB: System Information Block
- RMSI Remaining Minimum System Information, etc.
- the threshold N may not be defined.
- PUCCH format 4 differs from PUCCH format 3 in that multiple user terminals can be multiplexed in the same PRB.
- the PUCCH format 3 and the PUCCH format 4 may be interchanged and defined, or the PUCCH format 3 and the PUCCH format 4 may be defined as the same PUCCH format (for example, PUCCH format 3).
- N having different values may be used between PUCCH format 3 and PUCCH format 4.
- the PUCCH format applicable in the present embodiment is not limited to the configuration shown in FIG.
- FIG. 3A shows a case where PUCCH allocation periods (symbols) are respectively set to 4-14.
- the positions and / or proportions of DMRS symbols and UCI symbols are not limited to the configuration shown in FIG. 3A.
- the number of user terminals to be multiplexed by OCC is determined according to the period (Long PUCCH period: Long-PUCCH duration) of Long PUCCH (for example, PF1 transmitting UCI up to 2 bits) Be
- the number of user terminals multiplexed by OCC (time domain OCC) in the time domain can also be rephrased as OCC multiplexing capacity, OCC length, OC (Spreading Factor), etc. .
- FIG. 3B is a diagram illustrating an example of OCC multiple capacity per long PUCCH period.
- the OCC multiplex capacity M for each long PUCCH period may have a different value depending on whether frequency hopping is applied within the long PUCCH period. For example, in FIG. 3B, when the long PUCCH period N is 14 symbols and frequency hopping is applied, the OCC multiplexing capacity is 3. Also, if frequency hopping is not applied, the OCC multiplex capacity is seven.
- the maximum value of the multiple capacity in a given resource is the maximum value of OCC capacity ⁇ CS number.
- the CS number may be a predetermined value (for example, 12).
- the OCC multiplex capacity (OCC length) is 7 (see FIG. 3B).
- OCC length the OCC multiplex capacity 7 (UCI symbol for PUCCH and / or DMRS symbol for PUCCH) to which OCC multiplexing capacity 7 is applied (see FIG. 4A).
- the OCC multiplex capacity (OCC length) is 3 (see FIG. 3B).
- OCC length 3 (see FIG. 3B).
- the problem is how to control the generation of a reference sequence (for example, a reference sequence applied to PUCCH) with and without frequency hopping application (enable / disable).
- a reference sequence for example, a reference sequence applied to PUCCH
- frequency hopping application encoded / disable
- the present inventors have conceived of controlling a predetermined sequence (for example, the number of predetermined sequences) to be applied in a predetermined slot in consideration of whether or not frequency hopping is applied in a predetermined slot as one aspect of the present invention. .
- a predetermined sequence for example, the number of predetermined sequences
- a different reference sequence may be applied to each frequency hopping.
- a predetermined sequence for example, the number of predetermined sequences
- a predetermined slot without regard to whether or not frequency hopping is applied in a predetermined slot (regardless of the application).
- the idea was to control.
- the same reference sequence may be applied between frequency hoppings in a slot where frequency hopping is applied.
- the predetermined sequence includes UCI symbols of PUCCH (eg, long PUCCH), DMRS symbols of PUCCH (eg, long PUCCH), a base sequence for PUCCH (eg, short PUCCH), and PUSCH It can be used for at least one of DMRS for Of course, it may be applied to other signals and / or sequences of channels. Also, the predetermined sequence may be referred to as a base sequence, a reference signal sequence, or a demodulation reference signal sequence.
- hopping of a predetermined sequence is hopping of the group number of the predetermined sequence (also referred to as sequence group hopping (SGH) or group hopping) and / or a base sequence number of the predetermined sequence Hopping (also referred to as sequence hopping or the like). Further, the hopping of the predetermined sequence may be performed as long as different predetermined sequences are used for each predetermined period (for example, sTTI), and is not limited to the above-described SGH and / or sequence hopping.
- SGH sequence group hopping
- Hopping also referred to as sequence hopping or the like.
- the predetermined sequence may be identified by a group number and / or a base sequence number.
- a method for example, a mathematical expression or the like for generating a reference sequence (or DMRS sequence) in an existing LTE system may be applied to items that do not particularly refer to generation of a predetermined sequence or the like.
- a predetermined sequence for example, the number of predetermined sequences
- FH frequency hopping
- a predetermined number for example, one
- predetermined sequence # A0 to # A4 one predetermined sequence in each slot is a PUCCH UCI symbol and a PUCCH DMRS symbol.
- a reference sequence for PUCCH and at least one of DMRS for PUSCH is applied to the slot # 0.
- a predetermined sequence #A (for example, an index of a predetermined sequence #A) is determined using at least one of a cell ID, a virtual cell ID, a slot index, and a PRB index.
- the index of the predetermined sequence #A may be determined using a formula including at least one of a virtual cell ID, a slot index, and a PRB index.
- the index of the predetermined sequence can be randomized (randomized) between the slots. That is, a predetermined sequence different from the predetermined sequence #A can be applied in slot # 1. This can suppress the occurrence of interference between adjacent cells.
- FIG. 6 shows a configuration in which DMRSs for PUSCH are arranged in two symbols in the slot (here, the third symbol and the twelfth symbol from the beginning).
- time-domain OCC to DMRS by applying the same sequence (for example, DMRS sequence) to DMRSs with different symbols. This makes it possible to increase the multiplexing capacity of the UE.
- FIG. 5A shows the case where one predetermined sequence is applied to one slot
- the present invention is not limited to this. If OCC in the time domain is unnecessary due to the arrangement of signals or channels, a plurality of predetermined sequences may be applied.
- a plurality of predetermined sequences are applied in each slot (see FIG. 5B).
- predetermined sequence indices For example, when frequency hopping is enabled in slots # 0 to # 4 in FIG. 5B, UCI symbols of PUCCH corresponding to the number of predetermined sequences corresponding to the number of frequency regions (eg, hopping number +1) used by hopping in each slot. , A PUCCH DMRS symbol, a PUCCH reference sequence, and at least one of a PUSCH DMRS.
- two predetermined sequences here, predetermined sequences #B and #C
- two predetermined sequences here, predetermined sequences #B and #C
- predetermined sequences #B and #C (for example, predetermined ones) using at least one of cell ID, virtual cell ID, slot index, PRB index, hopping index (hop-index), and start symbol index of each hopping.
- the index of the predetermined sequence #B, #C is made using a formula including at least one of cell ID, virtual cell ID, slot index, PRB index, hopping index, and start symbol index of each hopping area. You may decide.
- the hopping index may be numbered in hopping order. For example, when frequency hopping is performed once, the index value of the first half region of frequency hopping may be 0, and the index value of the second half region of frequency hopping may be 1.
- a predetermined sequence to be applied to the first half of frequency hopping is determined based on the hopping index corresponding to the first half.
- a predetermined sequence to be applied to the second half region of frequency hopping is determined based on the hopping index corresponding to the second half region.
- the predetermined sequence may be determined regardless of the symbol index to which PUCCH and / or PUSCH is assigned (without using the symbol index).
- control may be performed to apply different predetermined sequences between slots.
- DMRSs for PUSCH are arranged in two symbols (here, the third and seventh symbols from the beginning) of the first half of hopping, and two symbols in the second half (here, the first symbols and seven from the beginning).
- the symbol symbol) shows a configuration in which DMRS for PUSCH is arranged.
- time domain OCC to DMRS by applying the same sequence (for example, DMRS sequence) to DMRSs with different symbols in each hopping region. This makes it possible to increase the multiplexing capacity of the UE.
- FIG. 7A shows the case where one predetermined sequence is applied to one slot
- the present invention is not limited to this. If OCC in the time domain is unnecessary due to the arrangement of signals or channels (FIG. 7B), a plurality of predetermined sequences may be applied in each hopping region.
- the indices of) may be the same value or different values.
- the predetermined series #A and #B, or the predetermined series #A and #C may have the same value, or the predetermined series # A- # C may have different values.
- a predetermined sequence for example, the number of predetermined sequences
- the number of predetermined sequences applied to transmission such as PUCCH
- frequency hopping enabled (enabled) applied to transmission
- PUCCH the number of predetermined series to be set and the number of predetermined series to be set are commonly set.
- the generation method of the predetermined sequences may be controlled regardless of whether or not frequency hopping is applied.
- a predetermined number for example, one
- predetermined sequences are applied in each slot (see FIG. 8). For example, when frequency hopping is not applied in slots # 0 to # 4 in FIG. 8A, UCI symbols for PUCCH, DMRS symbols for PUCCH, reference sequences for PUCCH, and DMRS for PUSCH for one predetermined sequence in each slot. Use at least one.
- FIG. 8A shows the case where the predetermined sequence #A is applied to the slot # 0.
- FIG. 8B shows the case where a predetermined sequence (eg, predetermined sequence #A) generated by the same method (eg, equation) as that of FIG. 8A is applied to slot # 0.
- a predetermined sequence eg, predetermined sequence #A
- a predetermined sequence #A (for example, an index of a predetermined sequence) is determined using at least one of a cell ID, a virtual cell ID, a slot index, a PRB index, and a start symbol index of each hopping area.
- the index of the predetermined sequence #A may be determined using a formula including at least one of a virtual cell ID, a slot index, a PRB index, and a start symbol index of each hopping area.
- a common predetermined sequence index is applied in each frequency hopping region. For example, as shown in FIG. 8B, a common predetermined sequence is applied to the first half region (hop # 0) and the second half region (hop # 1) of frequency hopping in each slot.
- the UE may determine the predetermined sequence based on at least the slot index.
- the index of the predetermined sequence can be randomized (randomized) between the slots. This can suppress the occurrence of interference between adjacent cells.
- the determination of the predetermined sequence is simplified by applying the predetermined sequence obtained by the common determination method (for example, formula) when the frequency hopping is set to be invalid and the frequency hopping is set to be effective. be able to. Thereby, the load of transmission processing of UE can be reduced.
- the common determination method for example, formula
- sequence determination example 1 when one sequence is determined for each slot regardless of the symbol index (for example, the first symbol index) to which PUCCH or DMRS or the like is assigned (sequence determination example 1), plural (for example, two) for each slot.
- sequence determination example 2 the case in which one or more sequences are determined based on a symbol index (for example, a leading symbol index) to which PUCCH or DMRS or the like is allocated will be described. .
- Sequence determination example 1 can be suitably applied to the second aspect when the frequency hopping pattern in the first aspect is set to be invalid.
- the sequence determination example 2 can be suitably applied to the first aspect and the second aspect (in particular, when the frequency hopping pattern in the first aspect is effectively set).
- Sequence determination example 3 can be suitably applied to the first aspect and the second aspect. The method of determining the predetermined series is not limited to this.
- the UE determines a predetermined sequence using an index of a predetermined parameter.
- an index of a predetermined series may be determined using a mathematical expression including an index of a predetermined parameter.
- the index of the predetermined sequence can be determined based on a group number (group number) and a base sequence number (for example, a formula including the group number and the base sequence number).
- the group number (u) may be defined by an equation including, for example, a slot index and / or a frequency resource (PRB and / or RE) index (see equation (1)).
- Equation (1) is a formula to be used for the determination of the slot #n s, PUCCH and / or minimum frequency resource indices PUSCH is allocated (LowestPRB and / or RE index) corresponding group number #k (u) .
- the group number (u) is defined using the group hopping pattern f gh slot (n s ), f gh PRB (k), and the sequence shift pattern (f ss ).
- the group hopping pattern f gh slot (n s ) includes a slot index
- the group hopping pattern f gh PRB (k) includes a frequency resource (PRB and / or RE) index.
- the formula of the group number of the predetermined series is not limited to the above formula (1). It may be configured not to include some parameters (for example, f gh PRB (k)) of the group hopping pattern. Alternatively, other parameters may be included.
- the group number (u) can be determined based on the hopping pattern and the sequence shift pattern.
- the hopping pattern and / or the sequence shift pattern may be based on physical cell ID (cell ID) or virtual cell ID.
- the UE may grasp the physical cell ID from the sequence number of the synchronization signal (PSS / SSS) and the virtual cell ID by RRC signaling.
- Some or all of the group hopping patterns f gh slot (n s ) and f gh PRB (k) may be configured to be able to set enable and disable based on a notification from the base station.
- a notification from the base station for example, upper layer signaling (for example, cell-specific RRC signaling (RRC parameters), and / or a broadcast signal, etc.) can be used.
- Setting Example 1 shows a case where each group hopping pattern f gh slot (n s ) and f gh PRB (k) is controlled based on a notification from the base station.
- the UE controls the application or non-application of the hopping pattern at the slot level and the PRB level based on cell-specific RRC parameters (see equation (2)).
- Z slot and Z PRB may be values defined in advance in a specification (for example, the number of scrambling code), or may be values notified from the base station to the UE.
- the values of Z slot and Z PRB are not limited to this.
- c (i) and c '(i) are pseudo-random sequences and are defined in advance using predetermined parameters.
- the configurations (values) of c (i) and c '(i) applied to each group hopping pattern may be a common configuration or different configurations.
- c init is defined by the following equation (3), and is initialized (or reset) using c init every predetermined period (for example, 10 ms).
- c init applied to each group hopping pattern may be a common configuration or a different configuration.
- initialization (reset) may use the same c init while applying different c (i) to each group hopping pattern.
- N ID cell is a configurable ID, and for example, a virtual cell ID or a cell ID can be used.
- the sequence shift pattern (f ss ) may be determined based on the N ID cell .
- c init +1 hopping patterns and 30 sequence shift patterns may be used.
- Figure 9A applies the group hopping pattern f gh slot (n s) (Activate f gh slot (n s)) , to disable not applied f gh PRB (k) (f gh PRB (k)
- f gh PRB (k) An example of a group number (u) corresponding to each radio resource in the case of.
- group numbers can be randomized at least between slots.
- FIG. 9B is applied to each radio resource when the group hopping pattern f gh slot (n s ) and f gh PRB (k) are applied (f gh slot (n s ) and f gh PRB (k) are enabled).
- An example of the corresponding group number (u) is shown. In this case, group numbers are randomized between slots and between PRBs. Therefore, the occurrence of interference with adjacent cells can be effectively reduced.
- Multiple group hopping patterns f gh slot (n s ) and f gh PRB (k) may be set (enabled or disabled) simultaneously for the UE, or set separately (independently) May be When setting simultaneously, for example, the base station collectively sets enabling / disabling of a plurality of group hopping patterns f gh slot (n s ) and f gh PRB (k) to the UE using one bit. . In this case, an increase in the number of bits required for notification can be suppressed.
- the base station enables or disables multiple group hopping patterns f gh slot (n s ) and f gh PRB (k) using different bit fields (or different RRC signaling) of RRC signaling. It may be set separately for each UE. In this case, setting presence or absence of each group hopping pattern f gh slot (n s ) and f gh PRB (k) can be flexibly controlled.
- enabling and disabling of a predetermined group hopping pattern for example, hopping f gh PRB (k) of frequency resource level
- hopping f gh PRB (k) of frequency resource level are controlled based on notification from the base station.
- slot level hopping pattern f gh slot (n s ) is controlled to be applied (or enabled) regardless of notification from the base station (see equation (4)).
- FIG. 9A shows an example of a group number (u) corresponding to each radio resource when the group hopping pattern f gh PRB (k) at the PRB level is not applied (f gh PRB (k) is made invalid). .
- the group number (u) is randomized between the slots.
- the same group number is set between PRBs.
- FIG. 9B shows an example of a group number (u) corresponding to each radio resource in the case of applying a group hopping pattern f gh PRB (k) at the PRB level (when f gh PRB (k) is enabled).
- group numbers are randomized between slots and between PRBs. Therefore, the occurrence of interference with adjacent cells can be effectively reduced.
- the slot group group hopping pattern regardless of the notification from the base station, it is possible to randomize a predetermined sequence at least between the slots. Thereby, even when the group hopping pattern f gh PRB (k) at the PRB symbol level is not applied, the inter-cell interference can be suppressed to some extent.
- setting example 2 shows the case where the slot level group hopping pattern f gh slot (n s ) is applied regardless of the notification from the base station
- the present invention is not limited to this.
- whether or not the group hopping pattern f gh PRB (k) at the PRB level is applied regardless of the notification from the base station, and the group hopping pattern f gh slot (n s ) at the slot level is applied in response to the notification from the base station May be controlled.
- the sequence determined in Example 1 without applying the symbol level of the group hopping pattern f gh symbol (l), the slot-level and / or PRB level group hopping pattern f gh slot (n s), f gh PRB (k) Control the application according to the notification from the base station.
- the same reference sequence can be applied to different symbols in the same slot, when using multiple symbols of PUCCH or PUSCH, OCC in the time domain is applied between symbols to increase PUCCH or PUSCH multiplexing capacity. be able to.
- the group number (u) includes a plurality of group hopping patterns f gh slot (n s ) and f gh PRB (k) individually (for example, equation (1)), It is not limited.
- the group number (u) may be defined using a group hopping pattern f gh (n s ) and a sequence shift pattern (f ss ) (see equation (5)).
- f gh (n s ) includes at least one of a slot index (n s ) and a frequency resource (PRB and / or RE) index (k).
- PRB and / or RE index (k) The configuration of the group hopping pattern f gh (n s ) will be described below by taking an example.
- the notification of the base station controls whether or not the hopping pattern at the slot level and the hopping pattern at the frequency resource level are applied. For example, when the group hopping pattern f gh (n s ) becomes disabled due to the notification of the base station, the value becomes zero. In addition, when the group hopping pattern f gh (n s ) is enabled (enabled) by the notification of the base station, it is set to a predetermined value (see equation (6)).
- Z cell may be a value defined in advance in a specification (for example, the number of scrambling code), or may be a value notified from the base station to the UE.
- Z cell may be set to 20.
- the value of Z cell is not limited to this.
- Z cell may be a different value or a common value for each group hopping.
- N RB is the number of PRBs and / or REs of a predetermined bandwidth (for example, cell bandwidth or bandwidth set for the UE)
- N symb UL is the number of symbols included in one slot or uplink included in one slot It corresponds to the number of symbols of the link.
- Other parameters (c (i) and the like) can be configured in the same manner as equation (1).
- the predetermined value to be valid is determined based on the slot index (n s ) and the frequency resource index (k). In this case, group numbers are randomized between slots and between PRBs. Therefore, the occurrence of interference with adjacent cells can be effectively reduced.
- the case of becoming invalid may be expressed as a first set value (bit value), and the case of becoming valid may be expressed as a second set value (bit value).
- the slot index can be used to determine the group number (by applying the slot level hopping pattern). This makes it possible to suppress inter-cell interference to some extent even when PRB level group hopping is not applied.
- configuration example 2 shows the case where slot-level group hopping is applied regardless of notification from the base station
- the present invention is not limited to this.
- the slot index and the frequency resource index may be replaced.
- sequence determination example 2 a plurality of (for example, two) sequences are always determined for each slot.
- the UE may select a sequence to be applied as needed from the determined plurality of sequences (also referred to as sequence candidates).
- sequence candidates also referred to as sequence candidates.
- the group number (u) may be defined by an equation including at least one of a slot index, a frequency resource (PRB and / or RE) index, and a hopping index (see equation (8)).
- slot #n s, PUCCH and / or minimum frequency resource indices PUSCH is allocated (LowestPRB and / or RE index) #k, to determine the group number corresponding to the hopping index #p (u) It is an expression to use.
- the group number (u) is defined using the group hopping pattern f gh slot (n s ), f gh PRB (k), f gh hop (p), and the sequence shift pattern (f ss ) .
- the group hopping pattern f gh hop (p) includes a hopping index.
- the hopping index may be numbered in hopping order. For example, when frequency hopping is performed once, the index value of the first half of frequency hopping may be 0, and the index value of the second half of frequency hopping may be 1.
- the formula of the group number of the predetermined series is not limited to the above formula (8). It may be configured not to include some parameters of the group hopping pattern (eg, f gh PRB (k) and / or f gh slot (n s )). Alternatively, other parameters may be included.
- the group number (u) at least in consideration of the index of the hopping region to which PUCCH, PUSCH or DMRS is allocated, randomization of a predetermined sequence can be achieved between hoppings. Further, by obtaining the group number index based on the hopping index (here, 0 and 1), it is possible to determine a predetermined sequence (predetermined sequence candidate) according to the number of hoppings (for example, the number of hoppings + 1).
- two predetermined sequences can always be calculated in each slot.
- one predetermined sequence to be actually applied may be selected from the predetermined sequence candidates.
- the UE may apply a group number (predetermined sequence) obtained from a small value (for example, 0) of the hopping index.
- any value of the hopping index may be randomly selected and applied.
- Some or all of the group hopping patterns f gh slot (n s ), f gh PRB (k) and f gh hop (p) are enabled and disabled based on the notification from the base station. May be set. Alternatively, a predetermined group hopping pattern (for example, f gh hop (p)) may be applied regardless of notification from the base station. Specifically, in the equations (2), (4), (6), (7) etc. shown in the sequence determination method 1, in addition to the slot index and the PRB index, the hopping index (group hopping pattern f gh hop ( The calculation formula which added p) can be used.
- FIG. 10A applies the group hopping pattern f gh slot (n s ) and f gh hop (p) (enables f gh slot (n s ) and f gh hop (p)) and f gh PRB (k)
- An example of the group number (u) corresponding to each radio resource in the case of not applying (inactivating f gh PRB (k)) is shown.
- the same group number is applied to each PRB in each slot.
- the group number (predetermined sequence index) at least between the slots and between the hoppings can be randomized.
- different group numbers are defined during frequency hopping (1 slot).
- two group number (predetermined sequence) candidates for example, 26, 12 are determined in one slot.
- the UE may determine the predetermined sequence to be actually applied from the predetermined sequence candidates according to the number of predetermined sequences to be applied in each slot.
- FIG. 10B applies the group hopping pattern f gh slot (n s ), f gh hop (p) and f gh PRB (k) (f gh slot (n s ), f gh hop (p) and f gh PRB
- An example of the group number (u) corresponding to each radio resource in the case where (k) is activated is shown.
- group numbers are randomized (randomized) between slots, between hoppings and between PRBs. Therefore, the occurrence of interference with adjacent cells can be effectively reduced.
- sequence determination example 3 In sequence determination example 3, one or more group number (predetermined sequence) indexes are determined based on a predetermined symbol (for example, head symbol) index of assignment of PUCCH, PUSCH, or DMRS.
- a predetermined symbol for example, head symbol index of assignment of PUCCH, PUSCH, or DMRS.
- the group number (u) may be defined by an equation including at least one of a slot index, a frequency resource (PRB and / or RE) index, and a symbol index (see equation (9)).
- Equation (9) is used to determine the slot #n s, minimum frequency resource index (LowestPRB and / or RE index) for PUCCH and / or PUSCH is assigned #k, group number corresponding to the symbol #l (u) It is an expression that Here, the group number (u) is defined using the group hopping pattern f gh slot (n s ), f gh PRB (k), f gh symbol (l), and the sequence shift pattern (f ss ) .
- the group hopping pattern f gh symbol (l) includes a symbol index (eg, 0 to 13).
- the formula of the group number of the predetermined series is not limited to the above formula (9). It may be configured not to include some parameters of the group hopping pattern (eg, f gh PRB (k) and / or f gh slot (n s )). Alternatively, other parameters may be included.
- each slot When one predetermined sequence is applied to each slot (for example, when the frequency hopping of the first aspect becomes invalid, or the second aspect), it is calculated from the leading symbol index of allocation regardless of whether or not frequency hopping is applied.
- Group numbers predetermined series
- group numbers predetermined sequences
- a plurality of group numbers predetermined sequences calculated respectively from the leading symbol index of allocation of each frequency hopping may be applied.
- Some or all of the group hopping patterns f gh slot (n s ), f gh PRB (k) and f gh symbol (l) are enabled and disabled based on notification from the base station. May be set. Alternatively, a predetermined group hopping pattern (for example, f gh symbol (l)) may be applied regardless of notification from the base station. Specifically, in the equations (2), (4), (6) and (7) shown in the sequence determination method 1, in addition to the slot index and the PRB index, the symbol index (group hopping pattern f gh symbol ( l)) can be used.
- FIG. 11A applies the group hopping pattern f gh slot (n s ) and f gh symbol (l) (f gh slot (n s ) and f gh symbol (l) are enabled), f gh PRB (k)
- f gh PRB (k) An example of the group number (u) corresponding to each radio resource in the case of not applying (inactivating f gh PRB (k)) is shown.
- group numbers can be randomized at least between slots and between symbols.
- FIG. 11B applies the group hopping pattern f gh slot (n s ), f gh symbol (l) and f gh PRB (k) (f gh slot (n s ), f gh symbol (l) and f gh PRB
- An example of the group number (u) corresponding to each radio resource in the case where (k) is activated is shown.
- group numbers are randomized (randomized) between slots, between symbols, and between PRBs. Therefore, the occurrence of interference with adjacent cells can be effectively reduced.
- the UE may apply a group number (predetermined sequence index) corresponding to the leading symbol (and the PRB with the smallest index) in the PUCCH, PUSCH or DMRS allocation region.
- PUCCHs to which frequency hopping is not applied are assigned (see FIG. 12A).
- a long PUCCH is allocated in a period (12 symbols) from the first symbol to the last symbol in a predetermined slot, and a short PUCCH is allocated in a period of 2 symbols from the end of another slot. Is shown.
- the group number corresponding to the leading symbol of the allocation area of the long PUCCH is # 12.
- the UE applies a predetermined sequence (one) determined based on the group number # 12 to long PUCCH transmission.
- the group number corresponding to the leading symbol of the allocation area of the short PUCCH and the PRB with the smallest index is # 14.
- the UE applies a predetermined sequence (one) determined based on the group number # 14 to short PUCCH transmission.
- the same sequence can be applied to the signal and / or channel by determining the predetermined sequence based on a predetermined symbol (eg, leading symbol) index to which the signal and / or channel is assigned. This allows the application of OCC in the time domain.
- a predetermined symbol eg, leading symbol
- the same predetermined sequence (here, the sequence determined from group number # 12) is applied to the short PUCCH of two symbols.
- UE multiplexing capacity can be increased.
- FIG. 12B shows the case where the first half region of frequency hopping is allocated in a period (6 symbols) from the third symbol to the 8 symbols from the beginning in a predetermined slot. Also, the case is shown where the second half region of frequency hopping is allocated in the period (6 symbols) from the top of the predetermined slot to the 9th symbol to the 14th symbol.
- the first half region of frequency hopping for short PUCCH is assigned to the second symbol from the end of another slot
- the second half region for frequency hopping for short PUCCH is assigned to the first symbol from the end of the other slot. Is shown.
- the UE calculates a plurality of predetermined sequence candidates (two) determined respectively based on the group numbers # 22 and # 9, and one of the predetermined sequence candidates or the number of the sequences to be actually applied in the slot Apply both.
- the UE calculates a plurality of predetermined sequence candidates (two) determined respectively based on the group numbers # 11 and # 22, and one of the predetermined sequence candidates or the number of the sequences to be actually applied in the slot Apply both.
- a configuration is described in which at least a symbol index (CS level hopping at symbol level) and / or a frequency resource index (CS level hopping at frequency resource level) is applied to cyclic shift (CS) applied to a predetermined sequence.
- the fourth mode can be appropriately used for the predetermined series in the first mode to the third mode.
- the UE determines cyclic shift (CS) to apply to a predetermined sequence using at least one of a symbol index and a frequency resource index.
- CS index is determined by hopping at slot level and symbol level (slot index and symbol index).
- the CS index may be determined based on frequency resource (PRB and / or RE) level hopping (frequency resource index) in addition to slot level and symbol level hopping.
- the CS in the fourth aspect can be applied to a predetermined PUCCH format.
- PUCCH formats 0, 1, 3 and 4 applies the cyclic shift described below as a cyclic shift of a base sequence in each symbol.
- PUCCH formats 3 and 4 may be applied to at least DMRS symbols.
- CS Hopping Configuration 1 In CS hopping configuration 1, hopping of CS index is performed at slot level and symbol level. For example, the UE determines a CS index ( ⁇ ( ns , l)) to be applied to a predetermined sequence using Equation (10) below. In equation (10), it is used to determine the CS index corresponding to slot #n s and symbol # 1.
- n CS cell corresponds to a CS hopping pattern common to cells (for example, common to a predetermined UE group).
- Z cell may be a value defined in advance in a specification (for example, the number of scrambling code), or may be a value notified from the base station to the UE.
- Z cell may be set to 20.
- the value of Z cell is not limited to this.
- Z cell may be a different value or a common value for each group hopping.
- n '( ns ) corresponds to a value set in advance (for example, an initial value of cyclic shift).
- n ′ ( ns ) is determined based on a value explicitly notified from a PUCCH resource set configured by a combination of RRC and DCI, a control channel element (CCE) index of a downlink control channel (PDCCH) Or a value determined based on the PRB and / or RE index of the downlink shared channel (PDSCH).
- CCE control channel element
- N symb UL corresponds to the UL period (the number of UL symbols) or the number of slots.
- c (i) is a pseudo-random sequence, which is defined in advance by using predetermined parameters. Generation of pseudorandom sequences is initialized at c init .
- c init can be determined based on a configurable ID (N ID cell ).
- the N ID cell can use a virtual cell ID or a cell ID, and c init may be N ID cell .
- c (i) may be configured to be initialized (or reset) using c init every predetermined period (for example, 10 ms).
- the CS index (eg, ⁇ ( ns , l)) actually used by the UE is a CS index (n '( ns )) set based on a predetermined method, and a CS hopping pattern (n CS cell ( ns , l)).
- equation (10) includes slot index (n s ) and symbol index (l). For this reason, the CS index is hopped at the slot level and the symbol level.
- FIG. 13 illustrates an example of the CS index corresponding to each radio resource in the case of hopping the CS index at the slot level and the symbol level.
- CS indexes are randomized between slots and between symbols. Therefore, the occurrence of interference with the adjacent cell can be effectively suppressed.
- the UE may apply the CS index corresponding to the leading symbol (and the PRB with the smallest index) in the PUCCH, PUSCH or DMRS allocation region.
- the CS index corresponding to the leading symbol (and the PRB with the smallest index) in the PUCCH, PUSCH or DMRS allocation region For example, in FIG. 13, it is assumed that a PUCCH (short PUCCH) to which frequency hopping is not applied is assigned.
- FIG. 13 shows the case where a short PUCCH is allocated in a period of two symbols from the end of a predetermined slot.
- the CS index corresponding to the leading symbol of the allocation area of the short PUCCH and the PRB with the smallest index is # 10.
- the UE may apply the CS index # 10 to a predetermined sequence. For example, when applying the short PUCCH shown in FIG. 12A, the UE may apply the CS index # 10 to the reference sequence obtained based on the group number # 14. The CS index may be selected and applied to the long PUCCH in the same manner.
- a different CS index may be applied to each symbol in the PUCCH, PUSCH or DMRS allocation region.
- a CS index corresponding to the PRB with the smallest index may be applied in each symbol to which a PUCCH is assigned.
- CS index # 10 is applied to the second symbol from the end
- CS index # 5 is applied to the first symbol from the end.
- OCC in the time domain can be applied if the sequences are the same.
- the CS index may be selected and applied to the long PUCCH in the same manner.
- CS Hopping Configuration 2 In CS hopping configuration 2, hopping of CS index is performed at slot level, symbol level and frequency resource (PRB and / or RE) level. For example, the UE determines a CS index ( ⁇ ( ns , l, k)) to be applied to a predetermined sequence using Equation (11) below. In formula (11), it is utilized slot #n s, symbol # l, the determination of CS index corresponding to the PUCCH and / or minimum frequency resource indices PUSCH is allocated (LowestPRB and / or RE index) #k Ru.
- N RB corresponds to the number of PRBs and / or REs of a predetermined bandwidth (for example, a cell bandwidth or a bandwidth set for the UE).
- Other parameters (Z cell and the like) are the same as in equation (10).
- Equation (11) k corresponding to a frequency resource index (for example, a PRB index) is added in comparison with equation (10). That is, in the CS hopping configuration 2, the slot index ( ns ), the symbol index (l), and the frequency resource index (k) are included in the equation (11). Therefore, the CS index is hopped at the slot level, the symbol level and the frequency resource level.
- a frequency resource index for example, a PRB index
- FIG. 14 illustrates an example of the CS index corresponding to each radio resource in the case of hopping the CS index at the slot level, the symbol level, and the frequency resource level.
- CS indexes are randomized (randomized) between slots, between symbols, and between PRBs. Therefore, the occurrence of interference with the adjacent cell can be more effectively suppressed.
- the UE may apply the CS index corresponding to the leading symbol (and the PRB with the smallest index) in the PUCCH, PUSCH or DMRS allocation region.
- PUCCH short PUCCH
- FIG. 14 shows the case where a short PUCCH is allocated in a period of two symbols from the end of a predetermined slot.
- the CS index corresponding to the leading symbol of the allocation area of the short PUCCH and the PRB with the smallest index is # 2.
- the UE may apply the CS index # 2 to the predetermined sequence.
- the UE may apply CS index # 2 to the reference sequence obtained based on group number # 14.
- the CS index may be selected and applied to the long PUCCH in the same manner.
- a different CS index may be applied to each symbol in the PUCCH, PUSCH or DMRS allocation region.
- a CS index corresponding to the PRB with the smallest index may be applied in each symbol to which a PUCCH is assigned.
- CS index # 2 is applied to the second symbol from the end
- CS index # 1 is applied to the first symbol from the end.
- OCC in the time domain can be applied if the sequences are the same.
- the CS index may be selected and applied to the long PUCCH in the same manner.
- the CS hopping may be configured to be able to set the application (validation or invalidation) by notification from the base station.
- the base station may set sequence hopping (enable or disable) and CS hopping at the same time for the UE or may set them separately (independently). For example, the base station collectively configures enabling / disabling of sequence hopping and CS hopping in the UE using higher layer signaling. In this case, an increase in the number of bits required for notification can be suppressed.
- the base station may separately set enabling / disabling of sequence hopping and CS hopping in the UE, using different bit fields (or different upper layer signaling) of higher layer signaling.
- the setting presence or absence of sequence hopping and CS hopping can be flexibly controlled.
- wireless communication system Wireless communication system
- communication is performed using any one or a combination of the wireless communication methods according to the above embodiments of the present invention.
- FIG. 15 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment of the present invention.
- the radio communication system 1 applies carrier aggregation (CA) and / or dual connectivity (DC) in which a plurality of basic frequency blocks (component carriers) each having a system bandwidth (for example, 20 MHz) of the LTE system as one unit are integrated. can do.
- CA carrier aggregation
- DC dual connectivity
- the wireless communication system 1 includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), LTE-B (LTE-Beyond), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), and 5G. It may be called (5th generation mobile communication system), NR (New Radio), FRA (Future Radio Access), New-RAT (Radio Access Technology) or the like, or may be called a system for realizing these.
- the radio communication system 1 includes a radio base station 11 forming a macrocell C1 with a relatively wide coverage, and radio base stations 12 (12a to 12c) disposed in the macrocell C1 and forming a small cell C2 narrower than the macrocell C1. And. Moreover, the user terminal 20 is arrange
- the user terminal 20 can be connected to both the radio base station 11 and the radio base station 12. It is assumed that the user terminal 20 simultaneously uses the macro cell C1 and the small cell C2 by CA or DC. Also, the user terminal 20 may apply CA or DC using a plurality of cells (CCs) (for example, 5 or less CCs, 6 or more CCs).
- CCs cells
- Communication can be performed between the user terminal 20 and the radio base station 11 using a relatively low frequency band (for example, 2 GHz) and a narrow bandwidth carrier (also called an existing carrier, legacy carrier, etc.).
- a carrier having a wide bandwidth in a relatively high frequency band for example, 3.5 GHz, 5 GHz, etc.
- the configuration of the frequency band used by each wireless base station is not limited to this.
- a wired connection for example, an optical fiber conforming to a Common Public Radio Interface (CPRI), an X2 interface, etc.
- a wireless connection for example, an optical fiber conforming to a Common Public Radio Interface (CPRI), an X2 interface, etc.
- CPRI Common Public Radio Interface
- X2 interface X2 interface
- the radio base station 11 and each radio base station 12 are connected to the higher station apparatus 30 and connected to the core network 40 via the higher station apparatus 30.
- the upper station apparatus 30 includes, for example, an access gateway apparatus, a radio network controller (RNC), a mobility management entity (MME), and the like, but is not limited thereto. Further, each wireless base station 12 may be connected to the higher station apparatus 30 via the wireless base station 11.
- RNC radio network controller
- MME mobility management entity
- the radio base station 11 is a radio base station having a relatively wide coverage, and may be called a macro base station, an aggregation node, an eNB (eNodeB), a transmission / reception point, or the like.
- the radio base station 12 is a radio base station having local coverage, and is a small base station, a micro base station, a pico base station, a femto base station, a HeNB (Home eNodeB), an RRH (Remote Radio Head), transmission and reception It may be called a point or the like.
- the radio base stations 11 and 12 are not distinguished, they are collectively referred to as the radio base station 10.
- Each user terminal 20 is a terminal compatible with various communication schemes such as LTE and LTE-A, and may include not only mobile communication terminals (mobile stations) but also fixed communication terminals (fixed stations).
- orthogonal frequency division multiple access (OFDMA) is applied to the downlink as a radio access scheme, and single carrier frequency division multiple access (SC-FDMA: single carrier) to the uplink.
- SC-FDMA single carrier frequency division multiple access
- Frequency Division Multiple Access and / or OFDMA is applied.
- OFDMA is a multicarrier transmission scheme in which a frequency band is divided into a plurality of narrow frequency bands (subcarriers) and data is mapped to each subcarrier to perform communication.
- SC-FDMA is a single carrier transmission scheme in which system bandwidth is divided into bands having one or continuous resource blocks for each terminal, and a plurality of terminals use different bands to reduce interference between the terminals. is there.
- the uplink and downlink radio access schemes are not limited to these combinations, and other radio access schemes may be used.
- a downlink shared channel (PDSCH: Physical Downlink Shared Channel) shared by each user terminal 20, a broadcast channel (PBCH: Physical Broadcast Channel), a downlink L1 / L2 control channel, etc. are used as downlink channels. Used. User data, upper layer control information, SIB (System Information Block) and the like are transmitted by the PDSCH. Also, a MIB (Master Information Block) is transmitted by the PBCH.
- PDSCH Physical Downlink Shared Channel
- PBCH Physical Broadcast Channel
- SIB System Information Block
- MIB Master Information Block
- the downlink L1 / L2 control channel includes PDCCH (Physical Downlink Control Channel), EPDCCH (Enhanced Physical Downlink Control Channel), PCFICH (Physical Control Format Indicator Channel), PHICH (Physical Hybrid-ARQ Indicator Channel) and the like.
- Downlink control information (DCI) including scheduling information of PDSCH and / or PUSCH is transmitted by PDCCH.
- scheduling information may be notified by DCI.
- DCI scheduling DL data reception may be referred to as DL assignment
- DCI scheduling UL data transmission may be referred to as UL grant.
- the number of OFDM symbols used for PDCCH is transmitted by PCFICH.
- Delivery confirmation information (for example, also referred to as retransmission control information, HARQ-ACK, or ACK / NACK) of HARQ (Hybrid Automatic Repeat reQuest) for the PUSCH is transmitted by the PHICH.
- the EPDCCH is frequency division multiplexed with a PDSCH (downlink shared data channel), and is used for transmission such as DCI, similarly to the PDCCH.
- an uplink shared channel (PUSCH: Physical Uplink Shared Channel) shared by each user terminal 20, an uplink control channel (PUCCH: Physical Uplink Control Channel), a random access channel (PRACH: Physical Random Access Channel) or the like is used.
- User data, upper layer control information, etc. are transmitted by PUSCH.
- downlink radio quality information (CQI: Channel Quality Indicator), delivery confirmation information, scheduling request (SR: Scheduling Request), etc. are transmitted by the PUCCH.
- the PRACH transmits a random access preamble for establishing a connection with a cell.
- a cell-specific reference signal (CRS: Cell-specific Reference Signal), a channel state information reference signal (CSI-RS: Channel State Information-Reference Signal), a demodulation reference signal (DMRS: DeModulation Reference Signal, positioning reference signal (PRS), etc.
- CRS Cell-specific Reference Signal
- CSI-RS Channel State Information-Reference Signal
- DMRS DeModulation Reference Signal
- PRS positioning reference signal
- SRS Sounding Reference Signal
- DMRS demodulation reference signal
- PRS positioning reference signal
- DMRS Demodulation reference signal
- PRS positioning reference signal
- FIG. 16 is a diagram showing an example of the entire configuration of a radio base station according to an embodiment of the present invention.
- the radio base station 10 includes a plurality of transmitting and receiving antennas 101, an amplifier unit 102, a transmitting and receiving unit 103, a baseband signal processing unit 104, a call processing unit 105, and a transmission path interface 106.
- each of the transmitting and receiving antenna 101, the amplifier unit 102, and the transmitting and receiving unit 103 may be configured to include one or more.
- User data transmitted from the radio base station 10 to the user terminal 20 by downlink is input from the higher station apparatus 30 to the baseband signal processing unit 104 via the transmission path interface 106.
- the baseband signal processing unit 104 performs packet data convergence protocol (PDCP) layer processing, user data division / combination, RLC layer transmission processing such as RLC (Radio Link Control) retransmission control, and MAC (Medium Access) for user data.
- Control Transmission processing such as retransmission control (for example, HARQ transmission processing), scheduling, transmission format selection, channel coding, inverse fast Fourier transform (IFFT) processing, precoding processing, etc. It is transferred to 103. Further, transmission processing such as channel coding and inverse fast Fourier transform is also performed on the downlink control signal and transferred to the transmission / reception unit 103.
- the transmission / reception unit 103 converts the baseband signal output from the baseband signal processing unit 104 for each antenna into a radio frequency band and transmits the baseband signal.
- the radio frequency signal frequency-converted by the transmitting and receiving unit 103 is amplified by the amplifier unit 102 and transmitted from the transmitting and receiving antenna 101.
- the transmission / reception unit 103 can be configured of a transmitter / receiver, a transmission / reception circuit, or a transmission / reception device described based on the common recognition in the technical field according to the present invention.
- the transmitting and receiving unit 103 may be configured as an integrated transmitting and receiving unit, or may be configured from a transmitting unit and a receiving unit.
- the radio frequency signal received by the transmission / reception antenna 101 is amplified by the amplifier unit 102.
- the transmitting and receiving unit 103 receives the upstream signal amplified by the amplifier unit 102.
- the transmission / reception unit 103 frequency-converts the received signal into a baseband signal and outputs the result to the baseband signal processing unit 104.
- the baseband signal processing unit 104 performs Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing, and error correction on user data included in the input upstream signal. Decoding, reception processing of MAC retransmission control, and reception processing of RLC layer and PDCP layer are performed, and are transferred to the higher station apparatus 30 via the transmission path interface 106.
- the call processing unit 105 performs call processing (setting, release, etc.) of the communication channel, state management of the radio base station 10, management of radio resources, and the like.
- the transmission path interface 106 transmits and receives signals to and from the higher station apparatus 30 via a predetermined interface. Also, the transmission path interface 106 transmits / receives signals (backhaul signaling) to / from the other wireless base station 10 via an inter-base station interface (for example, an optical fiber conforming to CPRI (Common Public Radio Interface), X2 interface). May be
- an inter-base station interface for example, an optical fiber conforming to CPRI (Common Public Radio Interface), X2 interface.
- the transmission / reception unit 103 receives a demodulation reference signal for UL channel and / or PUCCH to which a predetermined sequence is applied.
- the transmitting / receiving unit 103 determines whether or not the predetermined group hopping pattern is applied (enabled or disabled) by higher layer signaling (for example, cell-specific and / or UE-specific RRC signaling (RRC parameters), broadcast signal, etc.). To direct.
- the transmitting / receiving unit 103 may instruct the presence / absence (validation or invalidation) of application of CS hopping (CS index hopping) by higher layer signaling.
- FIG. 17 is a diagram showing an example of a functional configuration of a wireless base station according to an embodiment of the present invention.
- the functional block of the characteristic part in this embodiment is mainly shown, and the wireless base station 10 also has another functional block required for wireless communication.
- the baseband signal processing unit 104 at least includes a control unit (scheduler) 301, a transmission signal generation unit 302, a mapping unit 303, a reception signal processing unit 304, and a measurement unit 305. Note that these configurations may be included in the wireless base station 10, and some or all of the configurations may not be included in the baseband signal processing unit 104.
- a control unit (scheduler) 301 performs control of the entire radio base station 10.
- the control unit 301 can be configured of a controller, a control circuit, or a control device described based on the common recognition in the technical field according to the present invention.
- the control unit 301 controls, for example, generation of a signal by the transmission signal generation unit 302, assignment of a signal by the mapping unit 303, and the like. Further, the control unit 301 controls reception processing of a signal by the reception signal processing unit 304, measurement of a signal by the measurement unit 305, and the like.
- the control unit 301 schedules (for example, resources) system information, downlink data signals (for example, signals transmitted on PDSCH), downlink control signals (for example, signals transmitted on PDCCH and / or EPDCCH, delivery confirmation information, etc.) Control allocation). Further, the control unit 301 controls generation of the downlink control signal, the downlink data signal, and the like based on the result of determining whether the retransmission control for the uplink data signal is necessary or not. The control unit 301 also controls scheduling of synchronization signals (for example, PSS (Primary Synchronization Signal) / SSS (Secondary Synchronization Signal), downlink reference signals (for example, CRS, CSI-RS, DMRS) and the like.
- PSS Primary Synchronization Signal
- SSS Synchronization Signal
- control unit 301 may perform uplink data signals (for example, signals transmitted on PUSCH), uplink control signals (for example, signals transmitted on PUCCH and / or PUSCH, delivery confirmation information, etc.), random access preamble (for example, It controls scheduling of signals transmitted on PRACH, uplink reference signals and the like.
- uplink data signals for example, signals transmitted on PUSCH
- uplink control signals for example, signals transmitted on PUCCH and / or PUSCH, delivery confirmation information, etc.
- random access preamble for example, It controls scheduling of signals transmitted on PRACH, uplink reference signals and the like.
- control unit 301 controls the application (activation or invalidation) of the predetermined group hopping pattern. Also, the control unit 301 may control the application (activation or invalidation) of CS hopping (CS index hopping).
- the transmission signal generation unit 302 generates a downlink signal (downlink control signal, downlink data signal, downlink reference signal or the like) based on an instruction from the control unit 301, and outputs the downlink signal to the mapping unit 303.
- the transmission signal generation unit 302 can be configured from a signal generator, a signal generation circuit or a signal generation device described based on the common recognition in the technical field according to the present invention.
- the transmission signal generation unit 302 generates, for example, DL assignment for notifying downlink data allocation information and / or UL grant for notifying uplink data allocation information, based on an instruction from the control unit 301.
- DL assignment and UL grant are both DCI and follow DCI format.
- coding processing and modulation processing are performed on the downlink data signal according to a coding rate, a modulation method, and the like determined based on channel state information (CSI: Channel State Information) and the like from each user terminal 20.
- CSI Channel State Information
- Mapping section 303 maps the downlink signal generated by transmission signal generation section 302 to a predetermined radio resource based on an instruction from control section 301, and outputs the mapped downlink signal to transmission / reception section 103.
- the mapping unit 303 may be configured of a mapper, a mapping circuit or a mapping device described based on the common recognition in the technical field according to the present invention.
- the reception signal processing unit 304 performs reception processing (for example, demapping, demodulation, decoding, and the like) on the reception signal input from the transmission / reception unit 103.
- the reception signal is, for example, an uplink signal (uplink control signal, uplink data signal, uplink reference signal, etc.) transmitted from the user terminal 20.
- the received signal processing unit 304 can be configured from a signal processor, a signal processing circuit or a signal processing device described based on the common recognition in the technical field according to the present invention.
- the reception signal processing unit 304 outputs the information decoded by the reception process to the control unit 301. For example, when the PUCCH including the HARQ-ACK is received, the HARQ-ACK is output to the control unit 301. Further, the reception signal processing unit 304 outputs the reception signal and / or the signal after reception processing to the measurement unit 305.
- the measurement unit 305 performs measurement on the received signal.
- the measuring unit 305 can be configured from a measuring device, a measuring circuit or a measuring device described based on the common recognition in the technical field according to the present invention.
- the measurement unit 305 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, and the like based on the received signal.
- the measurement unit 305 may use received power (for example, RSRP (Reference Signal Received Power)), received quality (for example, RSRQ (Reference Signal Received Quality), SINR (Signal to Interference plus Noise Ratio)), signal strength (for example, RSSI (for example). Received Signal Strength Indicator), propagation path information (eg, CSI), etc. may be measured.
- the measurement result may be output to the control unit 301.
- FIG. 18 is a diagram showing an example of the entire configuration of a user terminal according to an embodiment of the present invention.
- the user terminal 20 includes a plurality of transmitting and receiving antennas 201, an amplifier unit 202, a transmitting and receiving unit 203, a baseband signal processing unit 204, and an application unit 205.
- each of the transmitting and receiving antenna 201, the amplifier unit 202, and the transmitting and receiving unit 203 may be configured to include one or more.
- the radio frequency signal received by the transmission / reception antenna 201 is amplified by the amplifier unit 202.
- the transmitting and receiving unit 203 receives the downlink signal amplified by the amplifier unit 202.
- the transmission / reception unit 203 frequency-converts the received signal into a baseband signal and outputs the result to the baseband signal processing unit 204.
- the transmission / reception unit 203 can be configured of a transmitter / receiver, a transmission / reception circuit or a transmission / reception device described based on the common recognition in the technical field according to the present invention.
- the transmission / reception unit 203 may be configured as an integrated transmission / reception unit, or may be configured from a transmission unit and a reception unit.
- the baseband signal processing unit 204 performs reception processing of FFT processing, error correction decoding, retransmission control, and the like on the input baseband signal.
- the downlink user data is transferred to the application unit 205.
- the application unit 205 performs processing on a layer higher than the physical layer and the MAC layer. Moreover, broadcast information may also be transferred to the application unit 205 among downlink data.
- uplink user data is input from the application unit 205 to the baseband signal processing unit 204.
- the baseband signal processing unit 204 performs transmission processing of retransmission control (for example, transmission processing of HARQ), channel coding, precoding, discrete Fourier transform (DFT) processing, IFFT processing, etc. It is transferred to 203.
- the transmission / reception unit 203 converts the baseband signal output from the baseband signal processing unit 204 into a radio frequency band and transmits it.
- the radio frequency signal frequency-converted by the transmitting and receiving unit 203 is amplified by the amplifier unit 202 and transmitted from the transmitting and receiving antenna 201.
- the transmission / reception unit 203 transmits the demodulation reference signal and / or PUCCH to which the predetermined sequence is applied.
- the transmission / reception unit 203 relates to whether or not a predetermined group hopping pattern is applied (enabled or invalidated) by higher layer signaling (for example, cell-specific and / or UE-specific RRC signaling (RRC parameters), broadcast signal, etc.) Receive information
- the transmission / reception unit 203 may receive information on whether or not CS hopping (CS index hopping) is applied (validation or invalidation) by higher layer signaling.
- FIG. 19 is a diagram showing an example of a functional configuration of a user terminal according to an embodiment of the present invention.
- the functional block of the characteristic part in this embodiment is mainly shown, and it is assumed that the user terminal 20 also has other functional blocks necessary for wireless communication.
- the baseband signal processing unit 204 included in the user terminal 20 at least includes a control unit 401, a transmission signal generation unit 402, a mapping unit 403, a reception signal processing unit 404, and a measurement unit 405. Note that these configurations may be included in the user terminal 20, and some or all of the configurations may not be included in the baseband signal processing unit 204.
- the control unit 401 controls the entire user terminal 20.
- the control unit 401 can be configured of a controller, a control circuit, or a control device described based on the common recognition in the technical field according to the present invention.
- the control unit 401 controls, for example, signal generation by the transmission signal generation unit 402, assignment of signals by the mapping unit 403, and the like. Further, the control unit 401 controls reception processing of a signal by the reception signal processing unit 404, measurement of a signal by the measurement unit 405, and the like.
- the control unit 401 acquires the downlink control signal and the downlink data signal transmitted from the radio base station 10 from the reception signal processing unit 404.
- the control unit 401 controls the generation of the uplink control signal and / or the uplink data signal based on the result of determining the necessity of the retransmission control for the downlink control signal and / or the downlink data signal.
- the control unit 401 also controls predetermined sequences (for example, the number of predetermined sequences and / or a generation method) to be applied in the predetermined slot based on the application of frequency hopping in the predetermined slot (see FIG. 5). Alternatively, the control unit 401 commonly controls a predetermined sequence (for example, the number of predetermined sequences and / or a generation method) to be applied in a predetermined slot regardless of whether or not frequency hopping is applied in the predetermined slot (see FIG. 8). .
- predetermined sequences for example, the number of predetermined sequences and / or a generation method
- control unit 401 may determine a predetermined sequence to be applied from among a plurality of predetermined sequences obtained based on at least a frequency hopping index in each slot. Further, the control unit 401 may determine the predetermined sequence based on at least a demodulation reference signal and / or a predetermined symbol index to which the uplink control channel is assigned. Also, the control unit 401 may determine the predetermined sequence based on at least the demodulation reference signal and / or the frequency resource index to which the uplink control channel is assigned.
- the transmission signal generation unit 402 generates an uplink signal (uplink control signal, uplink data signal, uplink reference signal or the like) based on an instruction from the control unit 401, and outputs the uplink signal to the mapping unit 403.
- the transmission signal generation unit 402 can be configured from a signal generator, a signal generation circuit, or a signal generation device described based on the common recognition in the technical field according to the present invention.
- the transmission signal generation unit 402 generates, for example, an uplink control signal related to delivery confirmation information, channel state information (CSI), and the like based on an instruction from the control unit 401. Further, the transmission signal generation unit 402 generates an uplink data signal based on an instruction from the control unit 401. For example, when the downlink control signal notified from the radio base station 10 includes a UL grant, the transmission signal generation unit 402 is instructed by the control unit 401 to generate an uplink data signal.
- CSI channel state information
- Mapping section 403 maps the uplink signal generated by transmission signal generation section 402 to a radio resource based on an instruction from control section 401, and outputs the uplink signal to transmission / reception section 203.
- the mapping unit 403 may be configured of a mapper, a mapping circuit or a mapping device described based on the common recognition in the technical field according to the present invention.
- the reception signal processing unit 404 performs reception processing (for example, demapping, demodulation, decoding, and the like) on the reception signal input from the transmission / reception unit 203.
- the reception signal is, for example, a downlink signal (a downlink control signal, a downlink data signal, a downlink reference signal, or the like) transmitted from the radio base station 10.
- the received signal processing unit 404 can be composed of a signal processor, a signal processing circuit or a signal processing device described based on the common recognition in the technical field according to the present invention. Also, the received signal processing unit 404 can constitute a receiving unit according to the present invention.
- the reception signal processing unit 404 outputs the information decoded by the reception process to the control unit 401.
- the received signal processing unit 404 outputs, for example, broadcast information, system information, RRC signaling, DCI, and the like to the control unit 401. Further, the reception signal processing unit 404 outputs the reception signal and / or the signal after reception processing to the measurement unit 405.
- the measurement unit 405 performs measurement on the received signal.
- the measuring unit 405 can be configured of a measuring device, a measuring circuit or a measuring device described based on the common recognition in the technical field according to the present invention.
- the measurement unit 405 may perform RRM measurement, CSI measurement, and the like based on the received signal.
- the measurement unit 405 may measure reception power (for example, RSRP), reception quality (for example, RSRQ, SINR), signal strength (for example, RSSI), channel information (for example, CSI), and the like.
- the measurement result may be output to the control unit 401.
- each functional block is realized using one physically and / or logically coupled device, or directly and / or two or more physically and / or logically separated devices. Or it may connect indirectly (for example, using a wire communication and / or radio), and it may be realized using a plurality of these devices.
- a wireless base station, a user terminal, and the like in an embodiment of the present invention may function as a computer that performs the processing of the wireless communication method of the present invention.
- FIG. 20 is a diagram showing an example of a hardware configuration of a radio base station and a user terminal according to an embodiment of the present invention.
- the above-described wireless base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007 and the like. Good.
- the term “device” can be read as a circuit, a device, a unit, or the like.
- the hardware configuration of the radio base station 10 and the user terminal 20 may be configured to include one or more of the devices illustrated in the figure, or may be configured without including some devices.
- processor 1001 may be implemented by one or more chips.
- Each function in the radio base station 10 and the user terminal 20 is calculated by causing the processor 1001 to read predetermined software (program) on hardware such as the processor 1001 and the memory 1002, and the communication device 1004 is performed. This is realized by controlling communication, and controlling reading and / or writing of data in the memory 1002 and the storage 1003.
- the processor 1001 operates, for example, an operating system to control the entire computer.
- the processor 1001 may be configured by a central processing unit (CPU) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like.
- CPU central processing unit
- the above-described baseband signal processing unit 104 (204), call processing unit 105, and the like may be realized by the processor 1001.
- the processor 1001 reads a program (program code), a software module, data, and the like from the storage 1003 and / or the communication device 1004 to the memory 1002, and executes various processing according to these.
- a program a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.
- the control unit 401 of the user terminal 20 may be realized by a control program stored in the memory 1002 and operating in the processor 1001, or may be realized similarly for other functional blocks.
- the memory 1002 is a computer readable recording medium, and for example, at least at least a read only memory (ROM), an erasable programmable ROM (EPROM), an electrically EPROM (EEPROM), a random access memory (RAM), or any other suitable storage medium. It may be configured by one.
- the memory 1002 may be called a register, a cache, a main memory (main storage device) or the like.
- the memory 1002 may store a program (program code), a software module, and the like that can be executed to implement the wireless communication method according to an embodiment of the present invention.
- the storage 1003 is a computer readable recording medium, and for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM (Compact Disc ROM), etc.), a digital versatile disk, Blu-ray® disc), removable disc, hard disc drive, smart card, flash memory device (eg card, stick, key drive), magnetic stripe, database, server, at least one other suitable storage medium May be configured by The storage 1003 may be called an auxiliary storage device.
- a computer readable recording medium for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM (Compact Disc ROM), etc.), a digital versatile disk, Blu-ray® disc), removable disc, hard disc drive, smart card, flash memory device (eg card, stick, key drive), magnetic stripe, database, server, at least one other suitable storage medium May be configured by
- the communication device 1004 is hardware (transmission / reception device) for performing communication between computers via a wired and / or wireless network, and is also called, for example, a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, and the like to realize, for example, frequency division duplex (FDD) and / or time division duplex (TDD). It may be configured.
- FDD frequency division duplex
- TDD time division duplex
- the transmission / reception antenna 101 (201), the amplifier unit 102 (202), the transmission / reception unit 103 (203), the transmission path interface 106, and the like described above may be realized by the communication device 1004.
- the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an input from the outside.
- the output device 1006 is an output device (for example, a display, a speaker, a light emitting diode (LED) lamp, and the like) that performs output to the outside.
- the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
- each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
- the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
- radio base station 10 and the user terminal 20 may be microprocessors, digital signal processors (DSPs), application specific integrated circuits (ASICs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), etc.
- DSPs digital signal processors
- ASICs application specific integrated circuits
- PLDs programmable logic devices
- FPGAs field programmable gate arrays
- Hardware may be included, and part or all of each functional block may be realized using the hardware.
- processor 1001 may be implemented using at least one of these hardware.
- the channels and / or symbols may be signaling.
- the signal may be a message.
- the reference signal may be abbreviated as RS (Reference Signal), and may be referred to as a pilot (Pilot), a pilot signal or the like according to an applied standard.
- a component carrier CC: Component Carrier
- CC Component Carrier
- the radio frame may be configured by one or more periods (frames) in the time domain.
- Each of the one or more periods (frames) that constitute a radio frame may be referred to as a subframe.
- a subframe may be configured by one or more slots in the time domain.
- the subframes may be of a fixed time length (e.g., 1 ms) independent of the neurology.
- the slot may be configured by one or more symbols in the time domain (such as orthogonal frequency division multiplexing (OFDM) symbols, single carrier frequency division multiple access (SC-FDMA) symbols, etc.).
- the slot may be a time unit based on the neurology.
- the slot may include a plurality of minislots. Each minislot may be configured by one or more symbols in the time domain. Minislots may also be referred to as subslots.
- a radio frame, a subframe, a slot, a minislot and a symbol all represent time units when transmitting a signal.
- subframes, slots, minislots and symbols other names corresponding to each may be used.
- one subframe may be referred to as a transmission time interval (TTI)
- TTI transmission time interval
- a plurality of consecutive subframes may be referred to as a TTI
- one slot or one minislot may be referred to as a TTI.
- TTI transmission time interval
- the subframe and / or TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms. It may be.
- the unit representing TTI may be called a slot, a minislot, etc. instead of a subframe.
- TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
- the radio base station performs scheduling to assign radio resources (frequency bandwidth usable in each user terminal, transmission power, etc.) to each user terminal in TTI units.
- radio resources frequency bandwidth usable in each user terminal, transmission power, etc.
- the TTI may be a transmission time unit of a channel encoded data packet (transport block), a code block, and / or a codeword, or may be a processing unit such as scheduling and link adaptation. Note that, when a TTI is given, the time interval (eg, the number of symbols) in which the transport block, the code block, and / or the codeword is actually mapped may be shorter than the TTI.
- one or more TTIs may be the minimum time unit of scheduling.
- the number of slots (the number of minislots) constituting the minimum time unit of the scheduling may be controlled.
- a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, or the like.
- a TTI shorter than a normal TTI may be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, or the like.
- a long TTI for example, a normal TTI, a subframe, etc.
- a short TTI eg, a shortened TTI, etc.
- a resource block is a resource allocation unit in time domain and frequency domain, and may include one or more consecutive subcarriers (subcarriers) in the frequency domain. Also, an RB may include one or more symbols in the time domain, and may be one slot, one minislot, one subframe, or one TTI in length. One TTI and one subframe may be respectively configured by one or more resource blocks. Note that one or more RBs may be a physical resource block (PRB: Physical RB), a subcarrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, etc. It may be called.
- PRB Physical resource block
- SCG Sub-Carrier Group
- REG Resource Element Group
- a resource block may be configured by one or more resource elements (RE: Resource Element).
- RE Resource Element
- one RE may be one subcarrier and one symbol radio resource region.
- the above-described structures such as the radio frame, subframe, slot, minislot and symbol are merely examples.
- the number of subframes included in a radio frame the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, included in an RB
- the number of subcarriers, as well as the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be variously changed.
- the information, parameters, etc. described in the present specification may be expressed using absolute values, may be expressed using relative values from predetermined values, or other corresponding information. May be represented.
- radio resources may be indicated by a predetermined index.
- the names used for parameters and the like in the present specification are not limited names in any respect.
- various channels PUCCH (Physical Uplink Control Channel), PDCCH (Physical Downlink Control Channel), etc.
- information elements can be identified by any suitable names, various assignments are made to these various channels and information elements.
- the name is not limited in any way.
- data, instructions, commands, information, signals, bits, symbols, chips etc may be voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or photons, or any of these May be represented by a combination of
- information, signals, etc. may be output from the upper layer to the lower layer and / or from the lower layer to the upper layer.
- Information, signals, etc. may be input / output via a plurality of network nodes.
- the input / output information, signals and the like may be stored in a specific place (for example, a memory) or may be managed using a management table. Information, signals, etc. input and output can be overwritten, updated or added. The output information, signals and the like may be deleted. The input information, signals and the like may be transmitted to other devices.
- notification of information is not limited to the aspects / embodiments described herein, and may be performed using other methods.
- notification of information may be physical layer signaling (eg, downlink control information (DCI), uplink control information (UCI)), upper layer signaling (eg, RRC (Radio Resource Control) signaling, It may be implemented by broadcast information (Master Information Block (MIB), System Information Block (SIB), etc.), MAC (Medium Access Control) signaling, other signals, or a combination thereof.
- DCI downlink control information
- UCI uplink control information
- RRC Radio Resource Control
- MIB Master Information Block
- SIB System Information Block
- MAC Medium Access Control
- the physical layer signaling may be called L1 / L2 (Layer 1 / Layer 2) control information (L1 / L2 control signal), L1 control information (L1 control signal), or the like.
- RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like.
- MAC signaling may be notified using, for example, a MAC control element (MAC CE (Control Element)).
- notification of predetermined information is not limited to explicit notification, but implicitly (for example, by not notifying the predetermined information or other information Notification may be performed).
- the determination may be performed by a value (0 or 1) represented by one bit, or may be performed by a boolean value represented by true or false. , Numerical comparison (for example, comparison with a predetermined value) may be performed.
- Software may be called software, firmware, middleware, microcode, hardware description language, or any other name, and may be instructions, instruction sets, codes, code segments, program codes, programs, subprograms, software modules. Should be interpreted broadly to mean applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc.
- software, instructions, information, etc. may be sent and received via a transmission medium.
- software may use a wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and / or a wireless technology (infrared, microwave, etc.), a website, a server
- wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.
- wireless technology infrared, microwave, etc.
- system and "network” as used herein are used interchangeably.
- base station Base Station
- radio base station eNB
- gNB gigad Generation
- cell cell
- cell group cell group
- carrier carrier
- carrier may be used interchangeably.
- a base station may also be called in terms of a fixed station (Node station), NodeB, eNodeB (eNB), access point (access point), transmission point, reception point, femtocell, small cell, and so on.
- a base station may accommodate one or more (e.g., three) cells (also called sectors). If the base station accommodates multiple cells, the entire coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being a base station subsystem (eg, a small base station for indoor use (RRH: Communication service can also be provided by Remote Radio Head).
- RRH Communication service can also be provided by Remote Radio Head.
- the terms "cell” or “sector” refer to part or all of the coverage area of a base station and / or a base station subsystem serving communication services in this coverage.
- MS mobile station
- UE user equipment
- a base station may also be called in terms of a fixed station (Node station), NodeB, eNodeB (eNB), access point (access point), transmission point, reception point, femtocell, small cell, and so on.
- Node station Node station
- NodeB NodeB
- eNodeB eNodeB
- access point access point
- transmission point reception point
- femtocell small cell, and so on.
- the mobile station may be a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, by those skilled in the art. It may also be called a terminal, a remote terminal, a handset, a user agent, a mobile client, a client or some other suitable term.
- the radio base station in the present specification may be replaced with a user terminal.
- each aspect / embodiment of the present invention may be applied to a configuration in which communication between a wireless base station and a user terminal is replaced with communication between a plurality of user terminals (D2D: Device-to-Device).
- the user terminal 20 may have a function that the above-described radio base station 10 has.
- the wordings such as "up” and “down” may be read as "side".
- the upstream channel may be read as a side channel.
- a user terminal herein may be read at a radio base station.
- the radio base station 10 may have a function that the above-described user terminal 20 has.
- the operation supposed to be performed by the base station may be performed by its upper node in some cases.
- various operations performed for communication with a terminal may be a base station, one or more network nodes other than the base station (eg, It is apparent that this can be performed by MME (Mobility Management Entity), S-GW (Serving-Gateway), etc. but not limited thereto or a combination thereof.
- MME Mobility Management Entity
- S-GW Serving-Gateway
- Each aspect / embodiment described in the present specification includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), LTE-B (LTE-Beyond), SUPER 3G, IMT-Advanced, 4G (4th generation mobile) Communication system), 5G (5th generation mobile communication system), FRA (Future Radio Access), New-RAT (Radio Access Technology), NR (New Radio), NX (New radio access), FX (Future generation radio access), GSM (registered trademark) (Global System for Mobile communications), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802 .20, UWB (Ultra-Wide Band), Bluetooth (registered trademark) And / or systems based on other suitable wireless communication methods and / or extended next generation systems based on these.
- LTE Long Term Evolution
- LTE-A Long Term Evolution-Advanced
- any reference to an element using the designation "first”, “second” and the like as used herein does not generally limit the quantity or order of those elements. These designations may be used herein as a convenient way of distinguishing between two or more elements. Thus, reference to the first and second elements does not mean that only two elements can be taken or that the first element must somehow precede the second element.
- determining may encompass a wide variety of operations. For example, “determination” may be calculating, computing, processing, deriving, investigating, looking up (eg, table, database or other data) A search on structure), ascertaining, etc. may be considered as “determining”. Also, “determination” may be receiving (e.g. receiving information), transmitting (e.g. transmitting information), input (input), output (output), access (access) It may be considered as “determining” (eg, accessing data in memory) and the like. Also, “determination” is considered to be “determination” to resolve, select, choose, choose, establish, compare, etc. It is also good. That is, “determination” may be considered as “determining” some action.
- connection refers to any direct or indirect connection between two or more elements or It means a bond and can include the presence of one or more intermediate elements between two elements “connected” or “connected” to each other.
- the coupling or connection between elements may be physical, logical or a combination thereof. For example, “connection” may be read as "access”.
- the radio frequency domain It can be considered as “connected” or “coupled” with one another using electromagnetic energy or the like having wavelengths in the microwave region and / or the light (both visible and invisible) regions.
- a and B are different may mean “A and B are different from each other”.
- the terms “leave”, “combined” and the like may be interpreted similarly.
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Abstract
Description
第1の態様では、所定スロットにおける周波数ホッピング(FH)の適用有無を考慮して所定スロットにおいて適用する所定系列(例えば、所定系列の数)をそれぞれ制御する場合について説明する。具体的には、所定スロットにおいて、周波数ホッピング(FH)を無効とする場合(disabled)にPUCCH等の送信に適用する所定系列の数と、周波数ホッピングを有効とする場合(enabled)にPUCCH等の送信に適用する所定系列の数と、をそれぞれ別々に(例えば、異なるように)設定する場合について説明する。なお、以下の説明では、PUCCH等の送信に適用する所定系列の数を例に挙げて説明するが、所定系列の生成方法を周波数ホッピングの適用有無に応じて制御してもよい。
第2の態様では、所定スロットにおける周波数ホッピングの適用有無を考慮せず(適用有無に関わらず)所定スロットにおいて適用する所定系列(例えば、所定系列の数)を制御する場合を説明する。具体的には、所定スロットにおいて、周波数ホッピングを無効とする場合(disabled)にPUCCH等の送信に適用する所定系列の数と、周波数ホッピングを有効とする場合(enabled)にPUCCH等の送信に適用する所定系列の数と、をそれぞれ共通に設定する場合について説明する。なお、以下の説明では、所定系列の数を例に挙げて説明するが、所定系列の生成方法を周波数ホッピングの適用有無に関わらず制御してもよい。
第3の態様では、所定系列の決定方法の一例について説明する。なお、以下に説明する所定系列の決定方法は、上記第1の態様と第2の態様における所定系列に適宜利用することができる。
UEは、所定パラメータのインデックスを利用して所定系列を決定する。例えば、所定パラメータのインデックスを含む数式を利用して所定系列のインデックスを決定してもよい。所定系列のインデックスは、グループ番号(group number)とベース系列番号(base sequence number)(例えば、グループ番号とベース系列番号を含む数式)に基づいて決定できる。
設定例1では、各グループホッピングパターンfgh slot(ns)、fgh PRB(k)の有効化(enable)と無効化(disable)を基地局からの通知に基づいて制御する場合を示す。UEは、セル固有のRRCパラメータに基づいて、スロットレベル、PRBレベルのホッピングパターンの適用有無を制御する(式(2)参照)。
設定例2では、所定のグループホッピングパターン(例えば、周波数リソースレベルのホッピングfgh PRB(k))の有効化(enable)と無効化(disable)を基地局からの通知に基づいて制御する。一方で、スロットレベルのホッピングパターンfgh slot(ns)は、基地局からの通知に関わらず適用する(又は、有効とする)ように制御する(式(4)参照)。
また、上記説明では、グループ番号(u)に複数のグループホッピングパターンfgh slot(ns)、fgh PRB(k)を個別に含める構成(例えば、式(1))としたが、これに限られない。例えば、グループ番号(u)をグループホッピングパターンfgh(ns)とシーケンスシフトパターン(fss)を用いて定義してもよい(式(5)参照)。
構成例1では、基地局の通知によりスロットレベルのホッピングパターンと周波数リソースレベルのホッピングパターンの適用有無を制御する。例えば、基地局の通知によりグループホッピングパターンfgh(ns)が無効(disabled)となる場合に値が0となる。また、基地局の通知によりグループホッピングパターンfgh(ns)が有効(enabled)となる場合に所定値に設定される(式(6)参照)。
構成例2では、基地局の通知によりPRBレベルのホッピングパターンの適用有無を制御する。例えば、基地局の通知によりグループホッピングパターンfgh(ns)が無効(disabled)となる場合、スロットインデックスに基づいてfgh(ns)の値が決定される(式(7)参照)。
系列決定例2では、スロット毎に複数(例えば、2つ)の系列を常に決定する。UEは、決定した複数の系列(系列候補とも呼ぶ)から、必要に応じて適用する系列を選択してもよい。なお、以下の説明では、系列決定例1と異なる部分について説明し、他の部分については系列決定例1と同様に適用できる。
系列決定例3では、PUCCH、PUSCH又はDMRSの割当ての所定シンボル(例えば、先頭シンボル)インデックスに基づいて1又は複数のグループ番号(所定系列)インデックスを決定する。なお、以下の説明では、系列決定例1、2と異なる部分について説明し、他の部分については系列決定例1、2と同様に適用できる。
第4の態様では、所定系列に適用するサイクリックシフト(CS)について、少なくともシンボルインデックス(シンボルレベルのCSホッピング)及び/又は周波数リソースインデックス(周波数リソースレベルのCSホッピング)を適用する構成について説明する。なお、第4の態様は、上記第1の態様-第3の態様における所定系列に適宜利用することができる。
CSホッピング構成1では、スロットレベルとシンボルレベルでCSインデックスのホッピングを行う。例えば、UEは、以下の式(10)を利用して所定系列に適用するCSインデックス(α(ns,l))を決定する。なお、式(10)では、スロット#ns、シンボル#lに対応するCSインデックスの決定に利用される。
CSホッピング構成2では、スロットレベルとシンボルレベルと周波数リソース(PRB及び/又はRE)レベルでCSインデックスのホッピングを行う。例えば、UEは、以下の式(11)を利用して所定系列に適用するCSインデックス(α(ns,l,k))を決定する。なお、式(11)では、スロット#ns、シンボル#l、PUCCH及び/又はPUSCHが割当てられる最小の周波数リソースインデックス(lowestPRB及び/又はREインデックス)#kに対応するCSインデックスの決定に利用される。
第3の態様で示した系列ホッピング(グループホッピング)と同様に、CSホッピングも基地局からの通知により適用有無(有効化又は無効化)を設定可能な構成としてもよい。
以下、本発明の一実施形態に係る無線通信システムの構成について説明する。この無線通信システムでは、本発明の上記各実施形態に係る無線通信方法のいずれか又はこれらの組み合わせを用いて通信が行われる。
図16は、本発明の一実施形態に係る無線基地局の全体構成の一例を示す図である。無線基地局10は、複数の送受信アンテナ101と、アンプ部102と、送受信部103と、ベースバンド信号処理部104と、呼処理部105と、伝送路インターフェース106と、を備えている。なお、送受信アンテナ101、アンプ部102、送受信部103は、それぞれ1つ以上を含むように構成されればよい。
図18は、本発明の一実施形態に係るユーザ端末の全体構成の一例を示す図である。ユーザ端末20は、複数の送受信アンテナ201と、アンプ部202と、送受信部203と、ベースバンド信号処理部204と、アプリケーション部205と、を備えている。なお、送受信アンテナ201、アンプ部202、送受信部203は、それぞれ1つ以上を含むように構成されればよい。
なお、上記実施形態の説明に用いたブロック図は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及び/又はソフトウェアの任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的及び/又は論理的に結合した1つの装置を用いて実現されてもよいし、物理的及び/又は論理的に分離した2つ以上の装置を直接的及び/又は間接的に(例えば、有線及び/又は無線を用いて)接続し、これら複数の装置を用いて実現されてもよい。
なお、本明細書において説明した用語及び/又は本明細書の理解に必要な用語については、同一の又は類似する意味を有する用語と置き換えてもよい。例えば、チャネル及び/又はシンボルは信号(シグナリング)であってもよい。また、信号はメッセージであってもよい。参照信号は、RS(Reference Signal)と略称することもでき、適用される標準によってパイロット(Pilot)、パイロット信号などと呼ばれてもよい。また、コンポーネントキャリア(CC:Component Carrier)は、セル、周波数キャリア、キャリア周波数などと呼ばれてもよい。
Claims (6)
- 所定系列が適用された復調用参照信号及び/又は上り制御チャネルを所定スロットで送信する送信部と、
前記所定スロットにおける周波数ホッピングの適用有無に基づいて、前記所定スロットにおいて適用する所定系列をそれぞれ制御する制御部と、を有することを特徴とするユーザ端末。 - 所定系列が適用された復調用参照信号及び/又は上り制御チャネルを所定スロットで送信する送信部と、
前記所定スロットにおける周波数ホッピングの適用有無に関わらず、前記所定スロットにおいて適用する所定系列を共通に制御する制御部と、を有することを特徴とするユーザ端末。 - 前記制御部は、各スロットにおいて少なくとも周波数ホッピングインデックスに基づいて得られる複数の所定系列の中から、適用する所定系列を決定することを特徴とする請求項1又は請求項2に記載のユーザ端末。
- 前記制御部は、少なくとも前記復調用参照信号及び/又は前記上り制御チャネルが割当てられる所定のシンボルインデックスに基づいて、前記所定系列を決定することを特徴とする請求項1又は請求項2に記載のユーザ端末。
- 前記制御部は、少なくとも前記復調用参照信号及び/又は前記上り制御チャネルが割当てられる周波数リソースインデックスに基づいて、前記所定系列を決定することを特徴とする請求項1から請求項4のいずれかに記載のユーザ端末。
- 所定系列が適用された復調用参照信号及び/又は上り制御チャネルを所定スロットで送信する工程と、
前記所定スロットにおける周波数ホッピングの適用有無に基づいて、前記所定スロットにおいて適用する所定系列をそれぞれ制御する工程と、を有することを特徴とするユーザ端末の無線通信方法。
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WO2020155189A1 (zh) * | 2019-02-03 | 2020-08-06 | 华为技术有限公司 | 参考信号接收与发送方法、装置及系统 |
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Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4728301B2 (ja) * | 2007-08-14 | 2011-07-20 | 株式会社エヌ・ティ・ティ・ドコモ | ユーザ装置、送信方法、及び通信システム |
CN101645868B (zh) | 2009-08-31 | 2014-12-10 | 中兴通讯股份有限公司 | 一种参考信号的发送方法和装置 |
CN102696193B (zh) * | 2010-01-07 | 2016-08-10 | Lg电子株式会社 | 在无线通信系统中生成参考信号序列的方法和装置 |
WO2011084004A2 (ko) | 2010-01-07 | 2011-07-14 | 엘지전자 주식회사 | 무선 통신 시스템에서 참조 신호 시퀀스 생성 방법 및 장치 |
EP2793420B1 (en) * | 2010-01-07 | 2019-05-29 | Samsung Electronics Co., Ltd | User equipment, base station, and method for enhancing features of uplink reference signals |
KR101730369B1 (ko) * | 2010-01-17 | 2017-04-26 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어 정보의 전송 방법 및 장치 |
CN102083223A (zh) * | 2010-03-05 | 2011-06-01 | 大唐移动通信设备有限公司 | 一种发送dci和上行传输的方法、系统及装置 |
WO2011120584A1 (en) * | 2010-04-01 | 2011-10-06 | Nokia Siemens Networks Oy | Sequence hopping in a communication system |
CN102082595B (zh) * | 2010-04-30 | 2013-08-07 | 电信科学技术研究院 | 一种配置dmrs的方法、装置及系统 |
US9065585B2 (en) | 2010-05-13 | 2015-06-23 | Lg Electronics Inc. | Method and apparatus for generating a reference signal sequence in a wireless communication system |
KR101227520B1 (ko) * | 2010-07-09 | 2013-01-31 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 상향링크 참조 신호 송신 방법 및 이를 위한 장치 |
WO2012026706A2 (ko) * | 2010-08-24 | 2012-03-01 | (주)팬택 | Mimo 동작방식에 따른 참조신호 송수신 방법 및 장치 |
WO2012046399A1 (ja) * | 2010-10-04 | 2012-04-12 | パナソニック株式会社 | 送信装置、受信装置、送信方法、及び受信方法 |
KR101216064B1 (ko) * | 2010-11-02 | 2012-12-26 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어 정보의 전송 방법 및 장치 |
RU2014108326A (ru) * | 2011-08-05 | 2015-09-10 | Телефонактиеболагет Л М Эрикссон (Пабл) | Способ генерации опорного сигнала |
US8693420B2 (en) * | 2011-08-10 | 2014-04-08 | Futurewei Technologies, Inc. | System and method for signaling and transmitting uplink reference signals |
CN102427396A (zh) * | 2011-08-15 | 2012-04-25 | 中兴通讯股份有限公司 | 一种小区间上行解调参考信号的信息交互方法和基站 |
US9060343B2 (en) * | 2011-10-03 | 2015-06-16 | Mediatek, Inc. | Support of network based positioning by sounding reference signal |
CN102404854B (zh) * | 2011-11-04 | 2018-04-06 | 中兴通讯股份有限公司 | 一种上行解调参考信号的资源配置方法及系统 |
JP5312629B2 (ja) * | 2012-03-14 | 2013-10-09 | シャープ株式会社 | 移動局装置、基地局装置、通信方法、集積回路および無線通信システム |
KR101525048B1 (ko) * | 2012-06-11 | 2015-06-08 | 주식회사 케이티 | 단말의 상향링크 사운딩 참조신호 전송방법 및 그 단말 |
WO2013191367A1 (ko) * | 2012-06-18 | 2013-12-27 | 엘지전자 주식회사 | 신호 송수신 방법 및 이를 위한 장치 |
US9538456B2 (en) * | 2013-02-18 | 2017-01-03 | Lg Electronics Inc. | Method and apparatus for performing data transmission in wireless communication system |
CN105075144B (zh) * | 2013-04-01 | 2018-02-13 | 松下电器(美国)知识产权公司 | 发送装置及控制信号映射方法 |
US10243707B2 (en) * | 2013-05-10 | 2019-03-26 | Qualcomm Incorporated | Efficient downlink operation for eIMTA |
CN106233658B (zh) * | 2014-04-20 | 2019-07-16 | Lg电子株式会社 | 在无线通信系统中发送探测参考信号的方法和终端 |
CN112118078B (zh) * | 2014-11-14 | 2024-02-27 | 株式会社Ntt都科摩 | 终端、通信系统以及反馈方法 |
WO2016159696A1 (en) * | 2015-03-31 | 2016-10-06 | Lg Electronics Inc. | Method and apparatus for performing frequency hopping for mtc ue in wireless communication system |
CN108632008B (zh) * | 2017-03-24 | 2023-06-02 | 华为技术有限公司 | 一种参考信号发送方法及装置 |
US11039433B2 (en) * | 2017-05-05 | 2021-06-15 | Qualcomm Incorporated | Channel formats with flexible duration in wireless communications |
CN110383923B (zh) | 2017-06-16 | 2023-01-31 | Lg 电子株式会社 | 发送和接收物理上行链路控制信道的方法及其装置 |
CN111757539B (zh) * | 2019-03-29 | 2022-07-15 | 中国移动通信有限公司研究院 | 一种信息发送方法、终端及网络设备 |
-
2017
- 2017-11-17 CN CN201780098191.1A patent/CN111630783B/zh active Active
- 2017-11-17 JP JP2019553653A patent/JP7132240B2/ja active Active
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- 2017-11-17 EP EP17931976.9A patent/EP3713102A4/en active Pending
Non-Patent Citations (4)
Title |
---|
"Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8", 3GPP TS 36.300, April 2010 (2010-04-01) |
3GPP: "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (Release 14)", 3GPP TS 36.211 V14.0.0, September 2016 (2016-09-01), pages 41 - 45, XP055609913 * |
ERICSON: "Remaining details on DMRS design", 3GPP TSG RAN WG1 MEETING 90BIS RL-1718448, 13 October 2017 (2017-10-13), XP051341630 * |
QUALCOMM INCORPORATED: "Long PUCCH design with 1 or 2 bits UCI payload", 3GPP TSG RAN WG1 MEETING 90BIS R1- 1718562, 13 October 2017 (2017-10-13), XP051341743 * |
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BR112020009834A2 (pt) | 2020-11-03 |
JP7132240B2 (ja) | 2022-09-06 |
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US20210176756A1 (en) | 2021-06-10 |
AU2017439630C1 (en) | 2023-12-21 |
CN111630783A (zh) | 2020-09-04 |
JPWO2019097703A1 (ja) | 2020-12-03 |
EP3713102A4 (en) | 2021-10-27 |
EP3713102A1 (en) | 2020-09-23 |
US11457451B2 (en) | 2022-09-27 |
CN111630783B (zh) | 2022-08-30 |
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