CN107819714B

CN107819714B - Method and equipment in UE (user equipment) supporting variable subcarrier spacing and base station

Info

Publication number: CN107819714B
Application number: CN201610818051.4A
Authority: CN
Inventors: 蒋琦
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2016-09-12
Filing date: 2016-09-12
Publication date: 2020-04-24
Anticipated expiration: 2036-09-12
Also published as: CN107819714A

Abstract

The invention discloses a method and equipment in UE supporting variable subcarrier spacing and a base station. The first information group comprises a first type of sub information and K1 second type of sub information. The first type of sub-information is used to determine a first time-frequency resource from a target resource pool. The first time-frequency resource comprises K1 time-frequency resource block sets. The K1 second-class sub-information is used to determine at least one of { reference signal configuration information, MCS } of the K1 sets of time-frequency resource blocks, respectively. According to the invention, by designing the first information group, when the UE is scheduled on the time frequency resource block sets corresponding to a plurality of different subcarrier spacings, the plurality of time frequency resource block sets can adopt different reference signal configuration modes, so that the flexibility of reference signal configuration and scheduling is improved, and the system spectrum efficiency is improved.

Description

Method and equipment in UE (user equipment) supporting variable subcarrier spacing and base station

Technical Field

The present invention relates to transmission schemes for wireless signals in wireless communication systems, and more particularly, to methods and apparatus for wireless transmission with variable subcarrier spacing.

Background

In an existing 3GPP (3rd Generation Partner Project) LTE (long term Evolution) system, only one subcarrier spacing (subcarrierspating) is supported within one system bandwidth. The time-frequency resources on one carrier are divided into a plurality of PRB (Physical Resource Block) pairs (Pair). One PRB pair includes 12 subcarriers in the frequency domain, and occupies 1 millisecond in the time domain. The base station transmits DCI (Downlink Control Information) to schedule PRB pairs within the system bandwidth. The configuration of Reference signals in the system, such as CRS (Cell Reference Signal), CSI-RS (channel state Information Reference Signal) and DMRS (demodulation Reference Signal), all give Reference Signal patterns (Pattern) for different Antenna Ports (AP) numbers or indexes for different antenna ports based on one PRB pair, and the Reference Signal patterns in all PRB pairs are the same under one Reference Signal configuration.

In 3GPP RAN1#86 discussion on NR (New Radio access technologies), multiple subcarrier spacings are discussed, e.g., 15kHz, 30kHz, 60kHz, etc., and explicit systems and UEs (User Equipment) in 3GPP need to support multiple different subcarrier spacings. For NR carriers that may support one or more subcarrier spacings, how to design the reference signal is a problem to be solved.

Disclosure of Invention

In NR communication, a base station and a UE may support multiple subcarrier spacings at the same time, so that the original system resource allocation method of a PRB pair with only one subcarrier spacing in an LTE system will be broken. A simple method is to design different time-frequency resource block sizes for different subcarrier spacings, and the time-frequency resource block sizes are for the minimum unit of scheduling, however, this method will result in multiple different time-frequency resource block sizes, and in addition, different AP numbers are considered, and a group of different patterns of reference signals needs to be correspondingly designed, which will increase the complexity of system design. In another mode, time frequency resource blocks occupying the same time frequency resource size are designed to correspond to all subcarrier spacings, and then a group of reference signal patterns aiming at different AP numbers are designed based on the time frequency resource blocks with the same size. This is a way to achieve better consistency and simple system implementation.

For the latter method, a problem exists in that, when multiple time-frequency resource blocks scheduled by one UE are located at different subcarrier spacings, whether the multiple time-frequency resource blocks need to adopt the same reference signal configuration mode is determined.

The present invention provides a solution to the above problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the UE of the present application may be applied in a base station and vice versa.

The invention discloses a method in UE supporting variable subcarrier spacing, which comprises the following steps:

-step a. receiving a first set of information;

-step b. receiving a first wireless signal in a first time-frequency resource; or transmitting the first wireless signal in the first time-frequency resource.

Wherein the first information group comprises a first type sub information and K1 second type sub information. The first type of sub-information is used for determining a first time-frequency resource from a target resource pool, wherein the target resource pool is composed of K2 target resource sub-pools, and time-frequency resources corresponding to the K2 target resource sub-pools are in one-to-one correspondence with K2 subcarrier spacings. The first time-frequency resource comprises K1 time-frequency resource block sets, the K1 time-frequency resource block sets are respectively located in the K1 target resource sub-pools, and the K1 target resource sub-pools are subsets of the K2 target resource sub-pools. The K1 is a positive integer greater than 1, the K2 is a positive integer greater than or equal to the K1. The K1 second-class sub-information are used to respectively determine at least one of { reference signal configuration information, MCS (Modulation and Coding Status) } of the K1 time-frequency resource block sets.

As an embodiment, the method has the advantage that, for the K1 time-frequency resource block sets, the K1 pieces of second-class sub information can support different reference signal configuration information, and further, for different subcarrier spacings, a suitable reference signal configuration mode is selected, so that signaling transmission and configuration flexibility are improved, and further, spectrum efficiency is improved.

As an embodiment, the above method has a benefit that the K1 pieces of second-type sub information can also support different MCSs, further optimizing transmission efficiency.

As an embodiment, the first information group belongs to a physical layer signaling.

As an embodiment, the first information group corresponds to a DCI, and a Cyclic Redundancy Check (CRC) of a physical layer control signaling corresponding to the DCI is scrambled by a Radio Network Temporary Identity (RNTI) specific to the UE.

As an embodiment, the one first-type sub information and the K1 second-type sub information belong to a first DCI and a second DCI, respectively.

As a sub-embodiment of this embodiment, the CRC of the physical layer control signaling corresponding to the first DCI is scrambled by a UE-specific RNTI.

As a sub-embodiment of this embodiment, the CRC of the physical layer control signaling corresponding to the second DCI is scrambled by the UE-specific RNTI.

As a sub-embodiment of this embodiment, the CRC of the physical layer control signaling corresponding to the second DCI is scrambled by a UE group-specific RNTI.

As a sub-embodiment of this embodiment, the CRC of the physical layer control signaling corresponding to the second DCI is scrambled by a cell-specific RNTI.

As a sub-embodiment of this embodiment, the CRC of the physical layer control signaling corresponding to the second DCI is scrambled by a default RNTI.

As an additional embodiment of this sub-embodiment, the default RNTI corresponds to the SI-RNTI.

As an embodiment, the frequency domain resource occupied by the target resource pool corresponds to a system bandwidth configured for a cell corresponding to a base station providing service for the UE.

As an embodiment, the frequency domain resource occupied by the target resource pool corresponds to a system bandwidth configured by a TRP (Transmission Reception Point) corresponding to a base station that provides a service for the UE.

As an embodiment, the frequency domain resources occupied by the target resource sub-pool are contiguous.

As an embodiment, the K2 is greater than 1, and any two of the K2 target resource sub-pools are discontinuous in the frequency domain.

For one embodiment, the K2 is greater than 1, and a guard band exists between any two of the K2 target resource sub-pools in the frequency domain.

As an embodiment, the time domain resource occupied by the target resource pool does not exceed one millisecond.

As an embodiment, the K2 is greater than 1, and the time domain resources occupied by the K2 target resource sub-pools are the same.

As an embodiment, the one-to-one correspondence between the time-frequency resources corresponding to the K2 target resource sub-pools and the K2 subcarrier spacings refers to: the subcarriers on the K2 target resource sub-pools are respectively configured as the K2 subcarrier spacings.

As an example, the K2 subcarrier spacing belongs to a subset of {3.75kHz, 7.5kHz, 15kHz, 30kHz, 60kHz, 120kHz, 240kHz, 480kHz }.

As an embodiment, any two subcarrier spacings of the K2 subcarrier spacings are different.

Specifically, according to an aspect of the present invention, the method is characterized in that the step a further includes the steps of:

step A0. receives the second signaling.

Wherein the second signaling is used to determine at least one of { the target resource pool, the K2 target resource sub-pools, the K2 subcarrier spacings }.

As an embodiment, the second signaling is used to determine at least one of { time domain resource, frequency domain resource } occupied by the target resource pool.

As a sub-embodiment of this embodiment, the time domain resource occupied by the target resource pool refers to: a starting time of a time window occupied by the target resource pool, and one of { an ending time of the time window occupied by the target resource pool, a duration of the time window occupied by the target resource pool }.

As a sub-embodiment of this embodiment, the frequency domain resources occupied by the target resource pool refer to: the starting frequency point of the frequency band occupied by the target resource pool, and one of { the ending frequency point of the frequency band occupied by the target resource pool, and the bandwidth of the frequency band occupied by the target resource pool }.

As an embodiment, the second signaling comprises one or more higher layer signaling.

As an embodiment, the second signaling is physical layer signaling.

As an embodiment, the first information group and the second signaling belong to one DCI.

As an embodiment, one of { the first type sub information, the K1 second type sub information } and the second signaling belong to one DCI.

As an embodiment, the second signaling is cell-specific RRC (Radio Resource Control) signaling.

As one embodiment, the second signaling is UE-specific RRC signaling.

As one embodiment, the second signaling is UE group-specific RRC signaling.

In particular, according to an aspect of the present invention, the method is characterized in that the first type of sub information is further used to confirm whether the reference signals in the K1 sets of time-frequency resource blocks can be used for joint channel estimation.

As an embodiment, the method has the advantage that the base station indicates whether the UE can perform joint channel estimation, and when the channel condition allows, the joint channel estimation can improve the performance of channel estimation of the UE due to the introduction of more reference signals.

As an embodiment, an RU (Resource Unit) in the present invention occupies one subcarrier in a frequency domain and occupies a duration of one multicarrier symbol in a time domain.

As a sub-embodiment of this embodiment, the multi-Carrier symbol is one of { OFDM (Orthogonal Frequency division Multiplexing) symbol, SC-FDMA (Single-Carrier Frequency division Multiplexing Access) symbol, FBMC (Filter Bank multi-Carrier) symbol, OFDM symbol including CP (Cyclic Prefix), DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency division Multiplexing) symbol including CP }.

As a sub-embodiment of this embodiment, the time-frequency resource block in the present invention includes a positive integer number of RUs.

As an embodiment, the joint channel estimation refers to: the results of the channel estimation employed on a given RU are obtained over all reference signals in the K1 sets of time-frequency resource blocks. The given RU is any one of all RUs included in the K1 sets of time-frequency resource blocks.

As an embodiment, the first type of sub-information is further used to confirm that the reference signals in the K1 sets of time-frequency resource blocks cannot be used for joint channel estimation, and the inability to be used for joint signal estimation refers to: the result of the channel estimation employed on a given RU is obtained only with all reference signals in a given set of time-frequency resource blocks. The given RU is any one of all RUs included in the K1 sets of time-frequency resource blocks, and the given set of time-frequency resource blocks is the set of time-frequency resource blocks including the given RU.

As an embodiment, the first type of sub information includes a 1-bit indication, the 1-bit indication being equal to "1" indicates that the reference signals in the K1 sets of time-frequency resource blocks can be used for joint channel estimation, and the 1-bit indication being equal to "0" indicates that the reference signals in the K1 sets of time-frequency resource blocks cannot be used for joint channel estimation.

Specifically, according to an aspect of the present invention, the method is characterized in that the first type sub information further includes at least one of { NDI (New Data Indicator), RV (Redundancy Version), HARQ (Hybrid Automatic Repeat reQuest) process number } of the first wireless signal.

As one embodiment, the first wireless signal includes data and a DMRS.

As one embodiment, a first block of bits is used to generate the first wireless signal.

As a sub-embodiment of this embodiment, the first bit Block is a Transport Block (TB).

As another sub-embodiment of this embodiment, the first radio signal is an output of the first bit block after sequentially performing Channel Coding (Channel Coding), Modulation Mapper (Modulation Mapper), layer Mapper (layermap), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation).

As another sub-embodiment of this embodiment, the part of the first radio signal excluding the DMRS is an output of the first bit block after sequentially performing Channel Coding (Channel Coding), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation).

Specifically, according to an aspect of the present invention, the method is characterized in that the reference signal configuration information is used to determine at least one of { number of antenna ports, index of one or more antenna ports, scrambling Code identification, cyclic shift, and OCC (Orthogonal Code) } of the reference signal.

As an embodiment, the reference signal is used to demodulate downlink data.

As an embodiment, the reference signal is used to demodulate uplink data.

As an embodiment, the reference signal is used to estimate CSI (Channel State Information).

As a sub-embodiment of this embodiment, at least one of { the number of antenna ports, the index of one or more antenna ports } of the reference signal is configured by higher layer signaling.

As an embodiment, at least one of { number of antenna ports, index of one or more antenna ports } of the reference signal is related to at least one of { time domain resource, frequency domain resource } occupied by the reference signal.

As an embodiment, at least one of { scrambling code identification, cyclic shift, OCC } of the reference signal is related to a generated sequence of the reference signal.

As an embodiment, the reference signal configuration information is based on the time-frequency resource block configuration.

As a sub-embodiment of this embodiment, the time-frequency resource block is composed of Q1 RUs, and M RUs included in the time-frequency resource block are used for reference signals. The Q1 is a positive integer and the M is a positive integer less than Q1.

As an additional embodiment of this sub-embodiment, the M is related to the reference signal configuration information.

As an auxiliary embodiment of this sub-embodiment, the Q1 is independent of the subcarrier spacing adopted by the time-frequency resource block.

As an auxiliary embodiment of the sub-embodiment, the M is independent of a subcarrier spacing adopted by the time-frequency resource block.

As an additional embodiment of this sub-embodiment, the reference signal configuration information remains unchanged, and the number of RUs used for transmitting the reference signal in a given time-frequency resource domain also remains unchanged.

As an example of this subsidiary embodiment, said given time-frequency resource domain corresponds to M1 sub-carriers in the frequency domain and N1 multi-carrier symbols in the time domain. The M1 and the N1 are positive integers, and the M1 and the N1 are independent of subcarrier spacing employed by the time-frequency resource block.

As an example of this subsidiary embodiment, said given time-frequency resource domain corresponds to M2(kHz) in the frequency domain and N2(ms) in the time domain. The M2 is a positive integer multiple of a minimum subcarrier spacing supported by the UE, and the N2 is a positive integer multiple of a minimum multicarrier symbol duration supported by the UE.

As an embodiment, the K1 sets of time-frequency resource blocks correspond to K1 pieces of reference signal configuration information, at least 2 pieces of reference signal configuration information in the K1 pieces of reference signal configuration information are different, and the first type of sub-information is used to confirm that the reference signals in the K1 sets of time-frequency resource blocks can be used for joint channel estimation.

The invention discloses a method in a base station for supporting variable subcarrier spacing, which comprises the following steps:

-step a. sending a first set of information;

-step b. transmitting a first wireless signal in a first time-frequency resource; or receiving a first wireless signal in a first time-frequency resource.

Wherein the first information group comprises a first type sub information and K1 second type sub information. The first type of sub-information is used for determining a first time-frequency resource from a target resource pool, wherein the target resource pool is composed of K2 target resource sub-pools, and time-frequency resources corresponding to the K2 target resource sub-pools are in one-to-one correspondence with K2 subcarrier spacings. The first time-frequency resource comprises K1 time-frequency resource block sets, the K1 time-frequency resource block sets are respectively located in the K1 target resource sub-pools, and the K1 target resource sub-pools are subsets of the K2 target resource sub-pools. The K1 is a positive integer greater than 1, the K2 is a positive integer greater than or equal to the K1. The K1 second-class sub-information is used to determine at least one of { reference signal configuration information, MCS } of the K1 sets of time-frequency resource blocks, respectively.

step A0. sends the second signaling.

Specifically, according to an aspect of the present invention, the method is characterized in that the first type sub information further includes at least one of { NDI, RV, HARQ process number } of the first wireless signal.

In particular, according to an aspect of the present invention, the above method is characterized in that the reference signal configuration information is used to determine at least one of { number of antenna ports, index of one or more antenna ports, scrambling code identification, cyclic shift, OCC } of the reference signal.

The invention discloses user equipment supporting variable subcarrier spacing, which comprises the following modules:

-a first receiving module: for receiving a first set of information;

-a first processing module: for receiving a first wireless signal on a first time-frequency resource or for transmitting a first wireless signal on a first time-frequency resource.

As an embodiment, the user equipment supporting variable subcarrier spacing is characterized in that the first receiving module is further configured to receive a second signaling. The second signaling is used to determine at least one of { the target resource pool, the K2 target resource sub-pools, the K2 subcarrier spacings }.

As an embodiment, the user equipment supporting variable subcarrier spacing is characterized in that the first type of sub information is also used for confirming whether reference signals in the K1 time-frequency resource block sets can be used for joint channel estimation.

As an embodiment, the user equipment supporting variable subcarrier spacing is characterized in that the first type of sub information further includes at least one of { NDI, RV, HARQ process number } of the first radio signal.

As an embodiment, the user equipment supporting variable subcarrier spacing is characterized in that the reference signal configuration information is used to determine at least one of { number of antenna ports, index of one or more antenna ports, scrambling code identification, cyclic shift, OCC } of a reference signal.

The invention discloses a base station device supporting variable subcarrier spacing, which comprises the following modules:

-a first sending module: for transmitting a first set of information;

-a second processing module: for transmitting a first wireless signal on the first time-frequency resource or for receiving a first wireless signal on the first time-frequency resource.

As an embodiment, the base station device supporting variable subcarrier spacing is characterized in that the first sending module is further configured to send a second signaling. The second signaling is used to determine at least one of { the target resource pool, the K2 target resource sub-pools, the K2 subcarrier spacings }.

As an embodiment, the base station device supporting variable subcarrier spacing is characterized in that the first type of sub information is also used for confirming whether reference signals in the K1 time-frequency resource block sets can be used for joint channel estimation.

As an embodiment, the base station device supporting variable subcarrier spacing is characterized in that the first type of sub information further includes at least one of { NDI, RV, HARQ process number } of the first wireless signal.

As an embodiment, the base station device supporting variable subcarrier spacing is characterized in that the reference signal configuration information is used to determine at least one of { number of antenna ports, index of one or more antenna ports, scrambling code identification, cyclic shift, OCC } of a reference signal.

Compared with the prior art, the invention has the following technical advantages:

by designing the first information group, reference signal configuration information is respectively configured for K1 time-frequency resource block sets scheduled by the UE, and then a better reference signal configuration is selected for different subcarrier spacings, so as to improve the frequency band utilization rate and the system performance.

By designing the first type of sub-information, it is indicated that the reference signals in the K1 sets of time-frequency resource blocks scheduled by the UE can be used for joint channel estimation, so as to further improve the performance of channel estimation under the condition of proper channel conditions.

By designing the second signaling to determine at least one of { the target resource pool, the K2 target resource sub-pools, and the K2 sub-carrier spacing }, the flexibility of system configuration is improved, the spectrum efficiency is further improved, and the compatibility of supporting multiple services in the same frequency band is ensured.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 shows a flow diagram of a downstream transmission according to an embodiment of the invention;

FIG. 2 shows a flow diagram of uplink transmission according to one embodiment of the invention;

FIG. 3 illustrates a schematic diagram of a target sub-pool of resources, according to one embodiment of the invention;

FIG. 4 shows a schematic diagram of another target sub-pool of resources, according to an embodiment of the invention;

FIG. 5 shows a schematic diagram of a time-frequency resource block according to an embodiment of the invention;

FIG. 6 is a diagram illustrating a time-frequency resource domain according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a time-frequency resource domain according to another embodiment of the present invention;

FIG. 8 shows a schematic diagram of an antenna port according to an embodiment of the invention;

fig. 9 shows a block diagram of a processing device in a UE according to an embodiment of the invention;

fig. 10 shows a block diagram of a processing means in a base station according to an embodiment of the invention;

Detailed Description

The technical solutions of the present invention will be further described in detail with reference to the accompanying drawings, and it should be noted that the features of the embodiments and examples of the present application may be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of downlink transmission according to the present invention, as shown in fig. 1. In fig. 1, base station N1 is a serving cell maintaining base station for UE U2.

For theBase station N1The second signaling is transmitted in step S10, the first information group is transmitted in step S11, and the first wireless signal is transmitted in the first time-frequency resource in step S12.

For theUE U2The second signaling is received in step S20, the first information group is received in step S21, and the first wireless signal is received in the first time-frequency resource in step S22.

As a sub-embodiment, the first signaling is DCI for a downlink Grant (Grant).

As a sub-embodiment, the transmission channel of the first wireless signal is DL-SCH (downlink shared channel).

Example 2

Embodiment 2 illustrates a flow chart of uplink transmission according to the present invention, as shown in fig. 2. In fig. 2, base station N3 is the serving cell maintaining base station for UE U4.

For theBase station N3The second signaling is transmitted in step S30, the first information group is transmitted in step S31, and the first wireless signal is received in the first time-frequency resource in step S32.

For theUE U4The second signaling is received in step S40, the first information group is received in step S41, and the first wireless signal is transmitted in the first time-frequency resource in step S42.

As a sub-embodiment, the first signaling is DCI for an uplink Grant (Grant).

As a sub-embodiment, the transmission channel of the first wireless signal is UL-SCH (Uplink shared channel).

Example 3

Embodiment 3 illustrates a schematic diagram of a target sub-pool of resources according to the present invention. As shown in fig. 3, the target resource pool in the figure includes K2 target resource sub-pools, and the K2 target resource sub-pools are sequentially ordered as a target resource sub-pool #0 to a target resource sub-pool # (K2-1). The frequency domain resources occupied by the target resource sub-pools are continuous, and the RUs in one target resource sub-pool adopt the same subcarrier spacing. And a guard band exists between two adjacent target resource sub-pools in the K2 target resource sub-pools. The K2 is a positive integer. The target resource sub-pool comprises a positive integer number of RUs.

As a sub-embodiment, a given target resource sub-pool occupies T1(ms) in the time domain. The given target resource sub-pool is any one of the K2 target resource sub-pools.

As a subsidiary embodiment of this sub-embodiment, T1 is equal to T, where T corresponds to the duration of a time-frequency resource block in the time domain and is expressed in ms.

As a sub-embodiment, a guard band exists between the target resource sub-pool # m and the target resource sub-pool # (m +1) in the frequency domain. Wherein m is a non-negative integer and not more than (K2-2).

As an auxiliary embodiment of this sub-embodiment, the subcarrier spacing corresponding to the target resource sub-pool # m is smaller than the subcarrier spacing corresponding to the target resource sub-pool # (m + 1).

As an additional embodiment of this sub-embodiment, the subcarrier spacing corresponding to the target resource sub-pool # m is greater than the subcarrier spacing corresponding to the target resource sub-pool # (m + 1).

As a sub-embodiment, the subcarrier spacings corresponding to the K2 target resource sub-pools sequentially increase according to the sequence numbers of the K2 target resource sub-pools.

As a sub-embodiment, the subcarrier spacings corresponding to the K2 target resource sub-pools are sequentially decreased according to the sequence numbers of the K2 target resource sub-pools.

Example 4

Embodiment 4 illustrates a schematic diagram of another target sub-pool of resources according to the present invention. As shown in fig. 4, a given sub-pool of target resources is discrete in the frequency domain.

As a sub-embodiment, the given target resource sub-pool is one of the K2 target resource sub-pools described in the present invention.

As a sub-embodiment, the middle frequency band shown in the figure belongs to the frequency domain resource corresponding to the target resource sub-pool other than the given target resource sub-pool in the K2 target resource sub-pools.

Example 5

Embodiment 5 illustrates a schematic diagram of a time-frequency resource block according to the present invention. As shown in fig. 5, the time-frequency resource block # a and the time-frequency resource block are located in different target resource sub-pools. The subcarrier spacing F3(kHz) corresponding to the time-frequency resource block # a is T3(ms), the subcarrier spacing F2(kHz) corresponding to the time-frequency resource block # B is T2(ms), and the duration of the corresponding multicarrier symbol is T2 (ms). The time frequency resource block # A and the time frequency resource block # B both occupy Q1 RUs, and both occupy F1 subcarriers in the frequency domain, and both occupy (Q1/F1) the duration of multicarrier symbols in the time domain. The time frequency resource block # A and the time frequency resource block # B cover the same area in the figure.

As a sub-embodiment, the F1 is a positive integer multiple of one of {12, 16 }.

As a sub-embodiment, the time-frequency resource block is the minimum unit of scheduling.

Example 6

Embodiment 6 illustrates a schematic diagram of a time-frequency resource domain according to the present invention. As shown in fig. 6, the time-frequency resource domain occupies M1 sub-carriers in the frequency domain, and corresponds to N1 multi-carrier symbols in the time domain. The M1 and the N1 are positive integers, and the M1 and the N1 are fixed for K2 different subcarrier spacings. The time frequency resource domain comprises M1 × N1 RUs in total, and Z1 RUs in the M1 × N1 RUs are used for reference signal transmission.

As a sub-embodiment, Z1 is independent of the subcarrier spacing employed by the time-frequency resource domain.

As a sub-embodiment, the Z1 is related to the number of antenna ports of the reference signal configured in the time-frequency resource domain.

As a sub-embodiment, the time-frequency resource domain belongs to the time-frequency resource block.

As a sub-embodiment, the time-frequency resource block includes a positive integer number of the time-frequency resource domains.

As a sub-embodiment, the time-frequency resource domain is the time-frequency resource block.

As a sub-embodiment, for a given reference signal configuration information, the { time-domain position, frequency-domain position } of the Z1 RUs in the time-frequency resource domain is fixed.

As an auxiliary embodiment of this sub-embodiment, the frequency domain position of Z1 RUs refers to the position of Z1 RUs in M1 subcarriers occupied by the frequency domain in the time-frequency resource domain.

As an auxiliary embodiment of this sub-embodiment, the time domain position of Z1 RUs refers to a position of the multi-carrier symbol occupied by Z1 RUs in the time domain among N1 multi-carrier symbols occupied by the time-frequency resource domain.

As an additional embodiment of this sub-embodiment, the given reference configuration information refers to: the reference signal configuration information indicates the same number of APs.

As an additional embodiment of this sub-embodiment, the given reference configuration information refers to: the reference signal configuration information indicates an index of the same antenna port.

Example 7

Embodiment 7 illustrates another schematic diagram of a time-frequency resource domain according to the present invention. As shown in FIG. 7, the time-frequency resource domain occupies M2(kHz) in the frequency domain and corresponds to N2(ms) in the time domain. The M2 is a positive integer multiple of a minimum subcarrier spacing supported by the UE, and the N2 is a positive integer multiple of a minimum multicarrier symbol duration supported by the UE. The time frequency resource domain contains Z2 reference signals in total.

As a sub-embodiment, Z2 is independent of the subcarrier spacing employed by the time-frequency resource domain.

As a sub-embodiment, the Z2 is related to the number of antenna ports of the reference signal configured in the time-frequency resource domain.

As a sub-embodiment, for a given reference signal configuration information, the { time-domain position, frequency-domain position } of the Z2 reference signals in the time-frequency resource domain is fixed.

As an auxiliary embodiment of this sub-embodiment, the Z2 reference signals respectively occupy Z2 time-frequency resources of M3(kHz) × N3 (ms). The N3 is the inverse of the M3, and the M3 is independent of the subcarrier spacing employed by the time-frequency resource domain.

As an example of this subsidiary embodiment, said M3 is equal to 15.

Example 8

Embodiment 8 illustrates a schematic diagram of an antenna port, as shown in fig. 8. In fig. 8, squares indicated by oblique lines are RSs assigned to the antenna port #7 and the antenna port #8, and squares indicated by cross lines are RSs (Reference signals) assigned to 4 antenna ports { # a _0, # a _1, # a _2, # a _3 }.

In embodiment 8, the time-frequency resources in the first sub-band and the target time interval belong to a first set of time-frequency resource blocks, and the time-frequency resources in the second sub-band and the target time interval belong to a second set of time-frequency resource blocks. The first time frequency resource block set and the second time frequency resource block set respectively belong to two time frequency resource block sets in the K1 time frequency resource block sets.

Two pieces of second-type sub information in the K1 pieces of second-type sub information in the present invention are respectively used by a target UE to determine antenna ports { #7, #8} and antenna ports { # a _0, # a _1, # a _2, # a _3}, RSs of the antenna ports { #7, #8} are used for demodulating data in the first set of time-frequency resource blocks, and the antenna ports { # a _0, # a _1, # a _2, # a _3} are used for demodulating data in the second set of time-frequency resource blocks.

As a sub-embodiment, the first type sub-information in the present invention is used to determine whether RSs of the antenna ports { #7, #8} and RSs of the antenna ports { # a _0, # a _1} can be used for joint channel estimation, i.e., whether the antenna port #7 and the antenna port # a _0 are the same antenna port and whether the antenna port #8 and the antenna port # a _1 are the same antenna port.

Example 9

Embodiment 9 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 9. In fig. 9, the UE processing apparatus 100 is mainly composed of a first receiving module 101 and a first processing module 102.

The first receiving module 101: for receiving a first set of information;

the first processing module 102: for receiving a first wireless signal on a first time-frequency resource or for transmitting a first wireless signal on a first time-frequency resource.

In embodiment 9, the first information group includes one first-type sub information and K1 second-type sub information. The first type of sub-information is used for determining a first time-frequency resource from a target resource pool, wherein the target resource pool is composed of K2 target resource sub-pools, and time-frequency resources corresponding to the K2 target resource sub-pools are in one-to-one correspondence with K2 subcarrier spacings. The first time-frequency resource comprises K1 time-frequency resource block sets, the K1 time-frequency resource block sets are respectively located in the K1 target resource sub-pools, and the K1 target resource sub-pools are subsets of the K2 target resource sub-pools. The K1 is a positive integer greater than 1, the K2 is a positive integer greater than or equal to the K1. The K1 second-class sub-information is used to determine at least one of { reference signal configuration information, MCS } of the K1 sets of time-frequency resource blocks, respectively.

As a sub embodiment, the user equipment supporting variable subcarrier spacing is characterized in that the first receiving module 101 is further configured to receive a second signaling. The second signaling is used to determine at least one of { the target resource pool, the K2 target resource sub-pools, the K2 subcarrier spacings }.

As a sub-embodiment, the user equipment supporting variable subcarrier spacing is characterized in that the first type of sub-information is also used to confirm whether the reference signals in the K1 sets of time-frequency resource blocks can be used for joint channel estimation.

As an auxiliary embodiment of the sub-embodiment, the number of antenna ports of the reference signals configured by the multiple time-frequency resource block sets performing the joint channel estimation is the same, where the number of antenna ports is W, and W is a positive integer greater than 1.

As an example of this subsidiary embodiment, a first set of time-frequency resource blocks and a second set of time-frequency resource blocks are used for the joint channel estimation, the antenna port numbers of the reference signals configured by the first set of time-frequency resource blocks are { # U, # (U +1), …, # (U + W-1) }, and the antenna port numbers of the reference signals configured by the second set of time-frequency resource blocks are { # V, # (V +1), …, # (V + W-1) }. The joint channel estimation refers to: and the antenna port # (U + i) in the first time-frequency resource block set and the antenna port # (V + i) in the second time-frequency resource block set jointly carry out channel estimation. And i is a positive integer not less than 0 and less than W. The first set of time frequency resource blocks and the second set of time frequency resource blocks are two different sets of time frequency resource blocks in the K1 sets of time frequency resource blocks.

As a sub-embodiment, the user equipment supporting variable subcarrier spacing is characterized in that the first type of sub-information further includes at least one of { NDI, RV, HARQ process number } of the first radio signal.

As a sub-embodiment, the user equipment supporting variable subcarrier spacing is characterized in that the reference signal configuration information is used to determine at least one of { number of antenna ports, index of one or more antenna ports, scrambling code identification, cyclic shift, OCC } of a reference signal.

Example 10

Embodiment 10 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 10. In fig. 10, the base station apparatus processing device 200 is mainly composed of a first sending module 201 and a second processing module 202.

The first sending module 201: for transmitting a first set of information;

the second processing module 202: for transmitting a first wireless signal on the first time-frequency resource or for receiving a first wireless signal on the first time-frequency resource.

In embodiment 10, the first information group includes one first-type sub information and K1 second-type sub information. The first type of sub-information is used for determining a first time-frequency resource from a target resource pool, wherein the target resource pool is composed of K2 target resource sub-pools, and time-frequency resources corresponding to the K2 target resource sub-pools are in one-to-one correspondence with K2 subcarrier spacings. The first time-frequency resource comprises K1 time-frequency resource block sets, the K1 time-frequency resource block sets are respectively located in the K1 target resource sub-pools, and the K1 target resource sub-pools are subsets of the K2 target resource sub-pools. The K1 is a positive integer greater than 1, the K2 is a positive integer greater than or equal to the K1. The K1 second-class sub-information is used to determine at least one of { reference signal configuration information, MCS } of the K1 sets of time-frequency resource blocks, respectively.

As a sub-embodiment, the base station device supporting variable subcarrier spacing is characterized in that the first sending module 201 is further configured to send a second signaling. The second signaling is used to determine at least one of { the target resource pool, the K2 target resource sub-pools, the K2 subcarrier spacings }.

As a sub-embodiment, the base station device supporting variable subcarrier spacing is characterized in that the first type of sub-information is also used to confirm whether the reference signals in the K1 sets of time-frequency resource blocks can be used for joint channel estimation.

As a sub-embodiment, the base station device supporting variable subcarrier spacing is characterized in that the first type of sub-information further includes at least one of { NDI, RV, HARQ process number } of the first radio signal.

As a sub-embodiment, the base station device supporting variable subcarrier spacing is characterized in that the reference signal configuration information is used to determine at least one of { number of antenna ports, index of one or more antenna ports, scrambling code identification, cyclic shift, OCC } of a reference signal.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in the present invention include, but are not limited to, a mobile phone, a tablet computer, a notebook computer, a vehicle-mounted Communication device, a wireless sensor, a network card, an internet of things terminal, an RFID terminal, an NB-IOT terminal, an MTC (Machine Type Communication) terminal, an eMTC (enhanced MTC) terminal, a data card, a network card, a vehicle-mounted Communication device, a low-cost mobile phone, a low-cost tablet computer, and other wireless Communication devices. The base station in the present invention includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method in a UE supporting variable subcarrier spacing, comprising the steps of:

-step a. receiving a first set of information;

-step b. receiving a first wireless signal in a first time-frequency resource; or transmitting a first wireless signal in a first time-frequency resource;

wherein the first information group comprises a first type sub-information and K1 second type sub-information; the one first-type sub information and the K1 second-type sub information belong to first DCI and second DCI, respectively; CRC of a physical layer control signaling corresponding to the first DCI is scrambled through a UE-specific RNTI; the CRC of the physical layer control signaling corresponding to the second DCI is scrambled by a UE group-specific RNTI, or the CRC of the physical layer control signaling corresponding to the second DCI is scrambled by an SI-RNTI; the first type of sub-information is used for determining first time-frequency resources from a target resource pool, wherein the target resource pool is composed of K2 target resource sub-pools, and time-frequency resources corresponding to the K2 target resource sub-pools are in one-to-one correspondence with K2 subcarrier spacings; the first time-frequency resource comprises K1 sets of time-frequency resource blocks, the K1 sets of time-frequency resource blocks are respectively located in the K1 target resource sub-pools, and the K1 target resource sub-pools are subsets of the K2 target resource sub-pools; the K1 is a positive integer greater than 1, the K2 is a positive integer greater than or equal to the K1; the K1 second-class sub-information are used to determine at least one of reference signal configuration information or MCS for the K1 sets of time-frequency resource blocks, respectively.

2. The method of claim 1, wherein step a further comprises the steps of:

-step A0. receiving the second signaling;

wherein the second signaling is used to determine at least one of the target resource pool, the K2 target resource sub-pools, or the K2 subcarrier spacings.

3. The method according to claim 1 or 2, wherein the first type of sub-information is further used to confirm whether reference signals in the K1 sets of time-frequency resource blocks can be used for joint channel estimation.

4. The method of claim 1, wherein the first type of sub-information further comprises at least one of an NDI, RV, or HARQ process number of the first wireless signal.

5. The method of claim 1, wherein the reference signal configuration information is used to determine at least one of a number of antenna ports for a reference signal, an index of one or more antenna ports, a scrambling code identification, a cyclic shift, or an OCC.

6. A method in a base station supporting variable subcarrier spacing, comprising the steps of:

-step a. sending a first set of information;

-step b. transmitting a first wireless signal in a first time-frequency resource; or receiving a first wireless signal in a first time-frequency resource;

7. The method of claim 6, wherein step A further comprises the steps of:

step A0. sending a second signaling;

8. The method according to claim 6 or 7, wherein the first type of sub-information is further used to confirm whether reference signals in the K1 sets of time-frequency resource blocks can be used for joint channel estimation.

9. The method of claim 6, wherein the first type of sub-information further comprises at least one of an NDI, an RV, or an HARQ process number of the first wireless signal.

10. The method of claim 6, wherein the reference signal configuration information is used to determine at least one of a number of antenna ports for a reference signal, an index of one or more antenna ports, a scrambling code identification, a cyclic shift, or an OCC.

11. A user equipment supporting variable subcarrier spacing, comprising:

-a first receiving module: for receiving a first set of information;

-a first processing module: for receiving a first wireless signal on a first time-frequency resource or for transmitting a first wireless signal on a first time-frequency resource;

12. A base station device supporting variable subcarrier spacing, comprising:

-a first sending module: for transmitting a first set of information;

-a second processing module: for transmitting a first wireless signal on a first time-frequency resource or for receiving a first wireless signal on a first time-frequency resource;