CN111294944B

CN111294944B - Resource pool configuration method and device, storage medium, terminal and base station

Info

Publication number: CN111294944B
Application number: CN201910255685.7A
Authority: CN
Inventors: 周欢; 王化磊
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2023-04-21
Anticipated expiration: 2039-03-29
Also published as: CN111294944A

Abstract

A method and a device for configuring a resource pool, a storage medium, a terminal and a base station are provided, wherein the method for configuring the resource pool comprises the following steps: receiving configuration information of a time domain resource unit, wherein the configuration information is used for indicating the number of time domain symbols contained in the time domain resource unit; determining effective bits in a bit map used for configuring a resource pool according to the number of time domain symbols contained in the time domain resource unit, wherein the effective bits refer to bits used for configuring a side chain to use the resource pool in the bit map; wherein at least some bits in the bit map are used to indicate whether the time domain resource unit is available. The invention provides a feasible scheme for configuring the symbol-level time domain resources of the resource pool.

Description

Resource pool configuration method and device, storage medium, terminal and base station

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for configuring a resource pool, a storage medium, a terminal, and a base station.

Background

In 2018, the 80 th meeting of the third generation partnership project (3 rd Generation Partnership Project, 3 GPP) passed the research project of the 5G New Radio, NR, internet of vehicles (Vehicle to Everything, V2X). V2X communications include vehicle-to-vehicle (Vehicle to Vehicle, V2V for short), vehicle-to-road side infrastructure (Vehicle to Infrastructure, V2I for short), vehicle-to-network (Vehicle to Network, V2N for short), and vehicle-to-pedestrian (Vehicle to Pedestrian, V2P for short). V2X is to collect road traffic environment information by using wireless communication, sensing detection and other technologies, and provide reliable traffic information for vehicle drivers and pedestrians through real-time, efficient and bidirectional information interaction and sharing among vehicles, people and infrastructure, thereby effectively improving road system safety and traffic environment.

In a long term evolution (Long Term Evolution, abbreviated LTE) communication system, both a physical side chain control channel (Physical Sidelink Control Channel, abbreviated PSCCH) and a physical side chain shared channel (Physical Sidelink Shared Channel, abbreviated PSSCH) transmit data in respective corresponding resource pools. Wherein, the resource pool is determined by two parts of a subframe set and a physical resource block (Physical Resource Block, PRB for short) set which is the same as each subframe belonging to the resource pool. In addition, there is a one-to-one binding relationship between the PSCCH resource pool and the PSCCH resource pool, that is, the PSCCH resource indicated by the PSCCH transmitted in the PSCCH resource pool belongs to the PSCCH resource pool to which the PSCCH resource pool is bound.

When the V2X terminal adopts an autonomous selection mode, the side chain resources used by the V2X terminal for transmitting data are selected from the resource pool by the V2X terminal. In order to improve the flexibility of resource pool scheduling, NR V2X tends to reduce the granularity of the time domain indicated by the resource pool when performing resource pool configuration. But currently, how to configure symbol-level time domain resource pools lacks a correlation solution.

Disclosure of Invention

The technical problem solved by the invention is how to configure the symbol-level time domain resources of the resource pool.

In order to solve the above technical problems, an embodiment of the present invention provides a method for configuring a resource pool, including: receiving configuration information of a time domain resource unit, wherein the configuration information is used for indicating the number of time domain symbols contained in the time domain resource unit; determining effective bits in a bit map used for configuring a resource pool according to the number of time domain symbols contained in the time domain resource unit, wherein the effective bits refer to bits used for configuring a side chain to use the resource pool in the bit map; wherein at least some bits in the bit map are used to indicate whether the time domain resource unit is available.

Optionally, the number of time domain symbols refers to the number of symbols associated with the reference subcarrier spacing.

Optionally, before determining the valid bit in the bit map for resource pool configuration, the configuration method further includes: and receiving the reference subcarrier interval and receiving pattern information of a time slot configuration period.

Optionally, the pattern information is pattern 1, and the valid bit in the bit map for resource pool configuration is determined by adopting the following formula: l=floor (u) _sym /RU)+floor(U/RU)·u _slots Wherein L represents the length of the significant bit, u _sym Representing the pattern 1The number of uplink symbols before uplink time slot of (u) _slots And (3) representing the number of uplink time slots in the pattern 1, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and floor () represents the downward rounding.

Optionally, the pattern information is pattern 1 and pattern 2, and the following formula is adopted to determine valid bits in the bit map used for resource pool configuration: l=floor (u) _sym /RU)+floor(U/RU)·u _slots +floor(u _sym,2 /RU)+floor(U/RU)·u _slots,2 Wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 And (3) representing the number of uplink time slots in the pattern 2, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and floor () represents the downward rounding.

Optionally, the pattern information is pattern 1, and the valid bit in the bit map for resource pool configuration is determined by adopting the following formula: l=ceil (u) _sym /RU)+ceil(U/RU)·u _slots Wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots And (3) representing the number of uplink time slots in the pattern 1, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and ceil () represents the upward rounding.

Optionally, the pattern information is pattern 1 and pattern 2, and the valid bit in the bit map is determined by adopting the following formula: l=ceil (u) _sym /RU)+ceil(U/RU)·u _slots +ceil(u _sym,2 /RU)+ceil(U/RU)·u _slots,2 Wherein L represents the length of the significant bit, u _sym Representing the upward direction in the pattern 1Number of uplink symbols before time slot, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 And (3) representing the number of uplink time slots in the pattern 2, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and ceil () represents the downward rounding.

Optionally, the number of time domain symbols refers to the number of symbols associated with side chain subcarrier spacing.

Optionally, before determining the valid bit in the bit map for resource pool configuration, the configuration method further includes: and receiving the side chain subcarrier interval and receiving pattern information of a time slot configuration period.

Optionally, the pattern information is pattern 1, and the valid bit in the bit map for resource pool configuration is determined by adopting the following formula:

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots The number of uplink time slots in the pattern 1 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and U _SL Index representing the side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, floor () represents rounding down.

Optionally, the pattern information is pattern 1 and pattern 2, valid bits in the bit map for resource pool configuration are determined using the following formula,

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 The number of uplink time slots in the pattern 2 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, U _SL Index representing the side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, floor () represents rounding down.

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots The number of uplink time slots in the pattern 1 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and U _SL Index representing the side chain subcarrier spacing, u _ref The ceil () represents the index of the reference subcarrier spacing and is rounded up.

Optionally, the pattern information is pattern 1 and pattern 2, and the following formula is adopted to determine valid bits in the bit map used for resource pool configuration:

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 Represents the number of uplink time slots in the pattern 2, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents theThe time domain resource unit contains the number of time domain symbols, u _SL Index representing the side chain subcarrier spacing, u _ref The ceil () represents the index of the reference subcarrier spacing and is rounded up.

Optionally, the first part of bits of the bit map is used for indicating whether a time slot is available, the second part of bits of the bit map is used for indicating whether the time domain resource unit is available, and determining the valid bit in the bit map according to the configuration information of the time domain resource unit includes: if the preconfigured slot configuration period is pattern 1, the available slots are calculated using the following formula:

wherein Lslot represents the number of available time slots, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots The number of uplink time slots in the pattern 1 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and U _SL Index representing the side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, ceil () represents rounding up; and indicating the time domain resource units by using Lslow RIVs.

Optionally, the first part of bits of the bit map is used for indicating whether a time slot is available, the second part of bits of the bit map is used for indicating whether the time domain resource unit is available, and determining the valid bit in the bit map according to the configuration information of the time domain resource unit includes: if the preconfigured slot configuration period is pattern 1 and pattern 2, the available slots are calculated using the following formula:

wherein Lslot represents the number of available time slots, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the uplink time slot in the pattern 2The number of upstream symbols, u _slots,2 The number of uplink time slots in the pattern 2 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, U _SL Index representing the side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, ceil () represents rounding up; and indicating the time domain resource units by using Lslow RIVs.

Optionally, the number of bits occupied by each RIV is log ₂ [ceil(U/RU)·(ceil(U/RU)-1)/2]。

In order to solve the above technical problem, an embodiment of the present invention further provides a method for configuring a resource pool, including: determining the number of time domain symbols contained in a time domain resource unit to obtain configuration information of the time domain resource unit; and sending the configuration information of the time domain resource unit.

Optionally, the configuration method further includes: and transmitting the reference subcarrier spacing and transmitting pattern information of a time slot configuration period.

Optionally, the configuration method further includes: and sending the side chain subcarrier interval and sending pattern information of a time slot configuration period.

In order to solve the above technical problem, an embodiment of the present invention further provides a device for configuring a resource pool, including: the first receiving module is suitable for receiving configuration information of a time domain resource unit, wherein the configuration information is used for indicating the number of time domain symbols contained in the time domain resource unit; the determining module is suitable for determining effective bits in a bit map used for configuring a resource pool according to the number of time domain symbols contained in the time domain resource unit, wherein the effective bits refer to bits used for configuring a side chain to use the resource pool in the bit map; wherein at least some bits in the bit map are used to indicate whether the time domain resource unit is available.

In order to solve the above technical problem, an embodiment of the present invention further provides a device for configuring a resource pool, including: a determining module, adapted to determine the number of time domain symbols contained in a time domain resource unit, so as to obtain configuration information of the time domain resource unit; and the first sending module is suitable for sending the configuration information of the time domain resource unit.

To solve the above technical problem, an embodiment of the present invention further provides a storage medium having stored thereon computer instructions that execute the steps of the above method when the computer instructions are run.

In order to solve the technical problem, the embodiment of the invention also provides a terminal which comprises a memory and a processor, wherein the memory stores computer instructions capable of being operated on the processor, and the processor executes the steps of the method when the processor operates the computer instructions.

In order to solve the above technical problem, an embodiment of the present invention further provides a base station, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the above method when executing the computer instructions.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

The embodiment of the invention provides a method for configuring a resource pool, which comprises the following steps: receiving configuration information of a time domain resource unit, wherein the configuration information is used for indicating the number of time domain symbols contained in the time domain resource unit; determining effective bits in a bit map used for configuring a resource pool according to the number of time domain symbols contained in the time domain resource unit, wherein the effective bits refer to bits used for configuring a side chain to use the resource pool in the bit map; wherein at least some bits in the bit map are used to indicate whether the time domain resource unit is available. By the technical scheme provided by the embodiment of the invention, the symbol-level resource pool can be configured for the UE, so that the granularity of time domain resources indicated by the resource pool can be thinned, and the scheduling flexibility of the resource pool can be improved.

Further, the number of time domain symbols refers to the number of symbols associated with the reference subcarrier spacing. The time domain symbol number provided by the embodiment of the invention is determined based on the reference subcarrier spacing, and the side chain subcarrier spacing can be calculated through the reference subcarrier spacing, so that the configuration information of the side chain resource pool is obtained, and the possibility of configuring the symbol level resource pool for the UE is further provided.

Further, the number of time domain symbols refers to the number of symbols associated with side chain subcarrier spacing. The number of the time domain symbols provided by the embodiment of the invention is determined based on the side chain subcarrier spacing, and the possibility of configuring the symbol-level resource pool for the UE is further provided.

Drawings

Fig. 1 is a schematic diagram of a prior art slot configuration of pattern 1;

fig. 2 is a schematic diagram of a prior art slot configuration of pattern 1 and pattern 2;

FIG. 3 is a flow chart of a method for configuring a resource pool according to an embodiment of the present invention;

FIG. 4 is a diagram of a bit configuration based on pattern 1 according to an embodiment of the present invention;

FIG. 5 is a diagram of a bit configuration based on pattern 1 and pattern 2 according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a time domain resource indication based on pattern 1 according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of another time domain resource indication based on pattern 1 according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of yet another bit configuration based on pattern 1 and pattern 2 according to an embodiment of the present invention;

FIG. 9 is a flow chart of a method for configuring a resource pool according to an embodiment of the present invention;

FIG. 10 is a signaling interaction diagram of an exemplary scenario of an embodiment of the present invention;

FIG. 11 is a signaling interaction diagram of yet another exemplary scenario of an embodiment of the present invention;

FIG. 12 is a schematic diagram of the configuration of a resource pool according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a configuration of a resource pool according to an embodiment of the present invention.

Detailed Description

Those skilled in the art understand that the prior art does not give a resource pool configuration method how to configure symbol-level time domain resources.

In the current V2X system, the PSCCH resource pool and the PSSCH resource pool that are mutually bound are determined by the same bit map, and PRB sets contained in the two resource pools may overlap. Bits of the bit map used to configure the pool subframe set may only be mapped into a part of the subframes, for example, if the current V2X working carrier configures a side chain synchronization signal (SideLink Synchronization Signal, abbreviated as SLSS, also called bypass synchronization signal) to send a subframe, the bit map and the subframe mapping process should skip the SLSS subframe.

Thereafter, the set { ti } is taken to represent a set of configurable V2X subframes (i.e., subframes that can be mapped with bits in the bit map) within one system frame period (e.g., 10240 subframes), where 0. Ltoreq.ti <10240.ti represents the actual subframe number of the configurable V2X subframe in the system frame period, i < M is 0.ltoreq.i < M, i represents the relative number of the configurable V2X subframe ti in the set { ti }, M represents the total number of configurable V2X subframes in the system.

Assuming that the bit map used to configure the resource pool is B in length, for any subframe tj within the set { ti }, if the mod (j, B) bit of the bit map is 1, it indicates that the subframe tj belongs to the resource pool configured by the bit map, where mod (X) indicates that the parameter X is modulo-calculated. The index of the bit map starts from 0. In the current V2X system, the bit bitmap length for the resource pool configuration may be 16, 20, or 100.

When configuring the cell-level slot format by the higher layer signaling in NR, pattern1 (Pattern 1) and Pattern2 (Pattern 2) may be used when configuring the reference subcarrier spacing (SCS for short), pattern2 being optional. Wherein, pattern1 contains the following parameters: the number of downlink time slots, and the number of downlink symbols after the downlink time slots; number of uplink time slots, number of uplink symbols before uplink time slots. Pattern2 is similar to pattern1 and also includes the number of downlink time slots, followed by the downlink time slotsThe number of downlink symbols; the number of uplink time slots, the number of uplink symbols before the uplink time slots, and the values of all parameters can be different. The slot configuration period included in pattern1 and pattern2 may be P+P ₂ Millisecond (ms), P denotes the slot configuration period of pattern1, P ₂ A slot configuration period P, P representing pattern2 ₂ Is a positive integer.

Fig. 1 shows a schematic diagram of a slot configuration of pattern 1 in the prior art. For example, with reference to SCS being 15kHz, slot configuration period P is 10ms, including slot 0, slot 1, … …, slot 9. Wherein d _slots Represents the number of downlink time slots d _sym The number of downlink symbols after the downlink time slot is represented; u (u) _slots Indicating the number of uplink time slots, u _sym Indicating the number of uplink symbols before uplink time slot. For example, as shown in FIG. 1, u _slots ＝3，d _slots ＝3。

Fig. 2 shows a schematic diagram of a slot configuration of pattern 1 and pattern 2 in the prior art. Assuming that the reference SCS is 15kHz, P is 4ms, P ₂ For 6ms, including slot 0, slot 1, … …, slot 9. Wherein d _slots 、d _slots,2 Represents the number of downlink time slots d _sym 、d _sym,2 The number of downlink symbols after the downlink time slot is represented; u (u) _slots 、u _slots,2 Indicating the number of uplink time slots, u _sym 、u _sym,2 Indicating the number of uplink symbols before uplink time slot. For example, in FIG. 2, u _slots ＝1，d _slots ＝1，u _slots,2 ＝2，d _slots,2 ＝2。

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 3 is a flow chart of a method for configuring a resource pool according to an embodiment of the present invention. The configuration method can be used for a User Equipment (UE) side. Specifically, the configuration method may include the steps of:

step S101, receiving configuration information of a time domain resource unit, wherein the configuration information is used for indicating the number of time domain symbols contained in the time domain resource unit;

step S102, determining effective bits in a bit map used for configuring a resource pool according to the number of time domain symbols contained in the time domain resource unit, wherein the effective bits refer to bits used for configuring a side chain to use the resource pool in the bit map.

Wherein at least some bits in the bit map are used to indicate whether the time domain resource unit is available.

More specifically, the base station may determine the number of time domain symbols included in the time domain resource unit to obtain configuration information of the time domain resource unit. The time domain resource unit can be regarded as a basic unit of symbol-level time domain resources when the base station indicates the terminal to allocate the resource pool, and the number of time domain symbols contained in the time domain resource unit can be configured by the base station. For example, the time domain resource unit contains a number of time domain symbols of 7.

The base station may then send configuration information of the time domain resource unit to the UE.

In step S101, the UE may receive configuration information of the time domain resource units from the base station, so as to learn the number of time domain symbols included in each time domain resource unit.

In one embodiment, the UE may also receive the reference subcarrier Spacing related information from the base station, so as to learn a reference subcarrier Spacing (SCS) (for example, the reference subcarrier Spacing is 15 kHz). The UE may also receive pattern information indicating a slot configuration period from the base station. The pattern information may be pattern 1, or may be pattern 1 and pattern 2.

In one embodiment, the number of time domain symbols refers to the number of symbols associated with the reference subcarrier spacing.

In another embodiment, the UE may also receive the side-chain subcarrier spacing related information from the base station to learn the side-chain subcarrier spacing (e.g., the reference subcarrier spacing is 30 kHz). The UE may also receive pattern information indicating a slot configuration period from the base station. The pattern information may be pattern 1, or may be pattern 1 and pattern 2.

In another embodiment, the number of time domain symbols refers to the number of symbols associated with side chain subcarrier spacing.

In step S102, the UE may determine, according to the number of time domain symbols included in the time domain resource unit, which bits in the bit map used for configuring the resource pool are bits used by the configuration side chain to use the resource pool, and these bits may be referred to as valid bits.

After determining the valid bit, the UE may determine which time domain resource units (e.g., symbols) are available and which are not available in the time domain resources within the resource pool according to the bit value in the valid bit.

In an implementation, if the UE knows the pattern information and the number of time domain symbols contained in the time domain resource unit, the UE may calculate the valid bit.

In one embodiment, the number of time domain symbols contained in the time domain resource unit is associated with a reference subcarrier spacing, is the number of symbols of the reference subcarrier spacing, and the pattern information is pattern 1. If the number of the remaining symbols in the time slot is smaller than the number of the symbols of the time domain resource unit, the base station does not allocate the remaining symbols to the side chain resource pool, and the remaining symbols do not occupy the valid bit in the bit map.

Under this condition, the UE may determine the valid bit using the following formula:

L＝floor(u _sym /RU)+floor(U/RU)·u _slots ，

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots And (3) representing the number of uplink time slots in the pattern 1, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and floor () represents the downward rounding.

Fig. 4 is a bit map diagram of an exemplary scenario of an embodiment of the present invention. Referring to fig. 1 and 4, the blank cells represent slots, the horizontal stripe cells represent downlink symbols and/or flexible symbols, the cross stripe cells represent uplink symbols not included in the time domain resource units, and the diagonal stripe cells represent uplink symbols included in the time domain resource units. The slot configuration period employs pattern 1, assuming u _sym ＝9，u _slots =3, ru=7. For the uplink 9 symbols in the slot 6, there are 2 extra symbols except for the time domain resource unit (represented by diagonal lines), and only 1 bit is occupied in the bit map. Each of the remaining slots (slot 7, slot 8 and slot 9) occupies 2 bits, respectively, so that the bit map contains 7 bits in total in the slot configuration period.

In another embodiment, the number of time domain symbols contained in the time domain resource unit is associated with a reference subcarrier spacing, is the number of symbols of the reference subcarrier spacing, and the pattern information is pattern 1 and pattern 2. If the number of the remaining symbols in the time slot is smaller than the number of the symbols of the time domain resource unit, the base station does not allocate the remaining symbols to the side chain resource pool, and the remaining symbols do not occupy the valid bit in the bit map.

L＝floor(u _sym /RU)+floor(U/RU)·u _slots +floor(u _sym,2 /RU)+floor(U/RU)·u _slots,2 wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 And (3) representing the number of uplink time slots in the pattern 2, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and floor () represents the downward rounding.

Fig. 5 is a bit map diagram of another exemplary scenario of an embodiment of the present invention. Referring to fig. 2 and 5, the blank cells represent slots, the horizontal stripe cells represent downlink symbols and/or flexible symbols, the cross stripe cells represent uplink symbols not included in the time domain resource units, and the diagonal stripe cells represent uplink symbols included in the time domain resource units. The slot configuration period employs pattern 1 and pattern 2, assuming u _sym ＝9，u _slots ＝1，u _sym,2 ＝6，u _slots,2 =2, ru=7. For the uplink 9 symbols in slot 3, there are 2 extra symbols except for the time domain resource unit (represented by diagonal lines), and only 1 bit is occupied in the bit map. For the uplink 6 symbols in slot 7, less than 6 symbols of one of the time domain resource units (represented by diagonal lines), no bits are occupied in the bit map. Slot 3 occupies 2 bits and for slots 8 and 9 (corresponding time domain resource units not shown) each occupy 2 bits, so that the bit map contains 7 bits in total during the slot configuration period.

It should be noted that, since the subcarrier spacing of the side-chain bandwidth Part (BWP) may be different from the reference subcarrier spacing, the time-domain resource units allocated by the above embodiment may cross the slot boundaries of the side-chain BWP. At this time, all corresponding side chain symbols can be used as a constituent of the resource pool.

Fig. 6 is a schematic diagram of a time domain resource indication based on pattern 1 according to an embodiment of the present invention. Referring to fig. 3, 4 and 6, if the base station transmits bit information 1000111 corresponding to the valid bits (7 bits) to the UE, the reference subcarrier interval is 15kHz and the side chain subcarrier interval is 60kHz, meaning that each valid bit transmitted to the UE by the base station corresponds to 2 slots in the side chain resource pool, and thus, according to the bit value, it may be indicated that the resource pool in the side chain BWP constitutes corresponding time domain resources including slot 6, slot 7 of the current frame and slots 4 to 9 of the next frame. Fig. 6 shows time slots that can be used as a resource pool using vertical bars. In parameter SCS, the dashed lines in time slots 7 to 9 represent that each time slot corresponds to 2 time domain resource units, 2 bits are needed, the dashed lines in time slot 6 represent that the time slot is split, wherein 7 symbols are included in the time domain resource units, 1 bit is needed, and the rest symbols are unavailable symbols.

In another embodiment, the number of time domain symbols contained in the time domain resource unit is associated with a reference subcarrier spacing, is the number of symbols of the reference subcarrier spacing, and the pattern information is pattern 1 and pattern 2. If the number of symbols remaining in the time slot is smaller than the number of symbols of the time domain resource unit, the base station may allocate the remaining symbols to a side chain resource pool, and the remaining symbols occupy bits in the valid bit in the bit map.

L＝ceil(u _sym /RU)+ceil(U/RU)·u _slots ，

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots And (3) representing the number of uplink time slots in the pattern 1, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and ceil () represents the upward rounding.

In another embodiment, the number of time domain symbols contained in the time domain resource unit is associated with a reference subcarrier spacing, is the number of symbols of the reference subcarrier spacing, and the pattern information is pattern 1 and pattern 2. If the number of symbols remaining in the time slot is smaller than the number of symbols of the time domain resource unit, the base station may allocate the remaining symbols to a side chain resource pool, and the remaining symbols occupy bits in the valid bits in the bit map.

L＝ceil(u _sym /RU)+ceil(U/RU)·u _slots +ceil(u _sym,2 /RU)+ceil(U/RU)·u _slots,2 ，

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 And (3) representing the number of uplink time slots in the pattern 2, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and ceil () represents the downward rounding.

In another embodiment, the number of time domain symbols contained in the time domain resource unit is related to a side chain subcarrier spacing, which is the number of symbols of the side chain subcarrier spacing, and the pattern information is pattern 1. If the number of the remaining symbols in the time slot is smaller than the number of the symbols of the time domain resource unit, the base station does not allocate the remaining symbols to the side chain resource pool, and the remaining symbols do not occupy the valid bit in the bit map.

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Indicating the number of uplink time slots in the pattern 1, wherein U indicates that each uplink time slot comprises in the time slots corresponding to the reference subcarrier intervalRU represents the number of time domain symbols contained in the time domain resource unit, u _SL Index representing the side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, floor () represents rounding down.

U when the subcarrier spacing (e.g., side chain subcarrier spacing or reference subcarrier spacing) is 15kHz _SL ＝u _ref =0; when the side chain subcarrier spacing or the reference subcarrier spacing is 30kHz, u _SL ＝u _ref =1; u at 60kHz _SL ＝u _ref When=2, 120kHz, u _SL ＝u _ref ＝4。

Fig. 7 is a bit map diagram of an exemplary scenario of an embodiment of the present invention. Referring to fig. 1, 3 and 7, blank boxes represent slots; the diagonal striped grid also represents a time slot and the time slot configuration period of the time slot configuration period is in pattern 1, where u is the uplink symbol (symbol not shown) included in the time domain resource unit _sym ＝9，u _slots ＝3，RU＝7，u _SL ＝2，u _ref =0 (side chain subcarrier spacing 60kHz, reference subcarrier spacing 15 kHz). For the uplink 9 symbols in slot 6, it takes up the complete 2 slots and several more symbols (symbols are not shown in the figure, represented by the dashed lines in slot 5). Thus, within the slot configuration period, the bit map contains 29 bits of valid bits.

Fig. 8 is a bit map diagram of yet another exemplary scenario of an embodiment of the present invention. Referring to fig. 3, 5 and 8, the blank cells represent slots (each slot contains 14 symbols, i.e., u=14), the horizontal stripe cells represent downlink symbols and/or flexible symbols, the cross stripe cells represent uplink symbols not contained in the time domain resource unit, and the diagonal stripe cells represent uplink symbols contained in the time domain resource unit. The slot configuration period employs pattern 1 and pattern 2, where u _sym ＝9，u _slots ＝1，RU＝7，u _SL ＝1，u _ref ＝0。u _sym,2 ＝6，u _slots,2 =2. Substituting the above formula indicates that, in the time slot configuration period, the bit map corresponding to the pattern 1 contains 6 bits of valid bits, and the bit map corresponding to the pattern 2 contains 9 bits of valid bits.

In another embodiment, the number of time domain symbols contained in the time domain resource unit is related to a side chain subcarrier spacing, which is the number of symbols of the side chain subcarrier spacing, and the pattern information is pattern 1 and pattern 2. If the number of symbols remaining in the time slot is smaller than the number of symbols of the time domain resource unit, the base station may allocate the remaining symbols to a side chain resource pool, and the remaining symbols occupy bits in the valid bit in the bit map.

In another embodiment, the number of time domain symbols contained in the time domain resource unit is related to a side chain subcarrier spacing, which is the number of symbols of the side chain subcarrier spacing, and the pattern information is pattern 1 and pattern 2. If the number of symbols remaining in the time slot is smaller than the number of symbols of the time domain resource unit, the base station may allocate the remaining symbols to a side chain resource pool, and the remaining symbols occupy bits in the valid bits in the bit map.

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 The number of uplink time slots in the pattern 2 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, U _SL Index representing the side chain subcarrier spacing, u _ref Cable representing reference subcarrier spacingReferring to, ceil () represents a round-up.

In another embodiment, the bit map contains 2 parts, part 1 being a slot level indication indicating the slots available in a slot configuration period. Part 2 is for the available time slots in part 1, indicating which time domain resource units are available.

If the slot configuration period configured in advance for the UE by the base station is pattern 1, the UE may calculate the available slots using the following formula:

wherein Lslot represents the number of available time slots, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots The number of uplink time slots in the pattern 1 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and U _SL Represents the side chain subcarrier spacing, u _ref Representing the reference subcarrier spacing, ceil () represents rounding up; the UE may then use Lslot resource indication vectors (Resource Indicator Vector, RIV for short) to indicate the time domain resource units. The number of bits occupied by each RIV is log ₂ [ceil(U/RU)·(ceil(U/RU)-1)/2]。

If the slot configuration period configured in advance for the UE by the base station is pattern 1 and pattern 2, the UE may calculate the available slots using the following formula:

wherein Lslot represents the number of available time slots, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the pattern 1The number of uplink slots of u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 The number of uplink time slots in the pattern 2 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, U _SL Index representing the side chain subcarrier spacing, u _ref The ceil () represents the index of the reference subcarrier spacing and is rounded up.

The base station may then indicate the time domain resource units using Lslot RIVs. The number of bits occupied by each RIV is log ₂ [ceil(U/RU)·(ceil(U/RU)-1)/2]。

Fig. 9 is a flow chart of a method for configuring a resource pool according to another embodiment of the present invention. The configuration method may be performed by a network-side base station. The configuration method may include the steps of:

step S201, determining the number of time domain symbols contained in a time domain resource unit to obtain configuration information of the time domain resource unit;

Step S202, transmitting configuration information of the time domain resource unit.

More specifically, in step S201, when the base station configures a resource pool for the UE, the number of time domain symbols included in the time domain resource unit may be determined to obtain configuration information of the time domain resource unit, and then in step S202, the configuration information of the time domain resource unit is sent to the UE.

The base station may transmit the reference subcarrier spacing and transmit pattern information of a slot configuration period so that the UE may calculate valid bits of the configured symbol-level resource pool.

In yet another embodiment, the number of time domain symbols refers to the number of symbols associated with side chain subcarrier spacing.

The base station may send the side-chain subcarrier spacing and send pattern information of a slot configuration period, so that the UE may calculate valid bits of the configured symbol-level resource pool.

It will be appreciated by those skilled in the art that the steps S201 to S202 may be regarded as corresponding execution steps to the steps S101 to S102 described in the embodiment shown in fig. 3, and the two steps complement each other in terms of specific implementation principles and logic. Thus, the configuration method of the resource pool on the network side may refer to the related description of the embodiment shown in fig. 3, which is not repeated here.

The signaling interactions between the user equipment and the base station (e.g., NR base station) employing embodiments of the present invention are further described below in connection with typical application scenarios.

In a typical application scenario, referring to fig. 10, when the ue 1 and the bs 2 perform configuration information transmission, the method may include the following steps:

first, the base station 2 performs an operation s0, i.e. the base station 2 determines configuration information of a time domain resource unit, where the configuration information is used to indicate the number of time domain symbols contained in the time domain resource unit. The number of time domain symbols refers to the number of symbols associated with the reference subcarrier spacing.

Next, the base station 2 performs an operation s1, i.e. the base station 2 transmits configuration information of the time domain resource unit to the user equipment 1.

Further, the base station 2 performs an operation s2 in which the base station 2 transmits the reference subcarrier spacing to the user equipment 1 and transmits pattern information of the slot configuration period.

Further, after receiving the configuration information of the time domain resource units, the ue 1 performs operation s3, i.e. determining valid bits in the bit map for resource pool configuration, after receiving the pattern information of the reference subcarrier spacing and the slot configuration period, so that it can determine which time domain resource units are available for subsequent data transmission. Wherein, the valid bit refers to a bit for configuring a side chain to use the resource pool in the bit map; at least some of the bits in the bit map are used to indicate whether the time domain resource unit is available.

For more details of the operation principle and operation manner of the ue 1 and the bs 2 in the application scenario shown in fig. 10, reference may be made to the related descriptions in fig. 3 and fig. 9, which are not repeated here.

In yet another exemplary application scenario, referring to fig. 11, when the ue 1 and the bs 2 perform configuration information transmission, the method may include the following steps:

first, the base station 2 performs an operation s0', i.e. the base station 2 determines configuration information of a time domain resource unit, the configuration information being used to indicate the number of time domain symbols contained in the time domain resource unit. The number of time domain symbols refers to the number of symbols associated with side chain subcarrier spacing.

Next, the base station 2 performs an operation s1', i.e. the base station 2 transmits configuration information of the time domain resource unit to the user equipment 1.

Further, the base station 2 performs an operation s2', i.e. the base station 2 transmits the side chain subcarrier spacing to the user equipment 1 and transmits pattern information of the slot configuration period.

Further, after receiving the configuration information of the time domain resource units, the pattern information of the reference subcarrier spacing and the slot configuration period, the user equipment 1 may perform an operation s3', i.e. determine valid bits in the bit map for resource pool configuration, so that it may be determined which time domain resource units are available for subsequent data transmission. Wherein, the valid bit refers to a bit for configuring a side chain to use the resource pool in the bit map; at least some of the bits in the bit map are used to indicate whether the time domain resource unit is available.

For more details of the operation principle and operation manner of the ue 1 and the bs 2 in the application scenario shown in fig. 11, reference may be made to the related descriptions in fig. 3 and fig. 9, which are not repeated here.

By the technical scheme provided by the embodiment of the invention, the base station can indicate the symbol-level resource pool, and the UE can configure the symbol-level time domain resource based on the resource pool to refine the resource allocation granularity.

Fig. 12 is a schematic structural diagram of a configuration apparatus for a resource pool according to an embodiment of the present invention, where the configuration apparatus 3 for a resource pool (hereinafter referred to simply as configuration apparatus 3) may be used to implement the method technical solutions shown in fig. 3 to 8, and is executed by a user equipment, for example, by an NR V2X UE.

Specifically, the configuration device 3 may include: a first receiving module 31, adapted to receive configuration information of a time domain resource unit, where the configuration information is used to indicate the number of time domain symbols contained in the time domain resource unit; a determining module 32, adapted to determine, according to the number of time domain symbols included in the time domain resource unit, valid bits in a bit map for resource pool configuration, where valid bits refer to bits in the bit map for configuring a side chain to use the resource pool; wherein at least some bits in the bit map are used to indicate whether the time domain resource unit is available.

In a specific implementation, the number of time domain symbols refers to the number of symbols associated with the reference subcarrier spacing.

In a specific implementation, the configuration device 3 may further comprise a second receiving module 33 adapted to receive the reference subcarrier spacing and receive pattern information of a slot configuration period before determining valid bits in a bit map for resource pool configuration.

The pattern information is pattern 1 and the determining module 32 is adapted to determine the valid bits in the bit map for the resource pool configuration using the following formula:

L＝floor(u _sym /RU)+floor(U/RU)·u _slots ，

As a variation, the pattern information is pattern 1 and pattern 2, and the following formula is used to determine the valid bit in the bit map for resource pool configuration:

As yet another variation, the pattern information is pattern 1, and the valid bit in the bit map for resource pool configuration is determined using the following formula:

L＝ceil(u _sym /RU)+ceil(U/RU)·u _slots ，

As yet another variation, the pattern information is pattern 1 and pattern 2, and the valid bit in the bit map is determined using the following formula:

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 Represents the number of uplink time slots in the pattern 2, and U represents the time corresponding to the reference subcarrier spacingIn slots, RU represents the number of time domain symbols contained in the time domain resource unit, and ceil () represents a downward rounding.

In a specific implementation, the number of time domain symbols refers to the number of symbols associated with side chain subcarrier spacing.

The configuration means 3 may further comprise a third receiving module 34 adapted to receive the side chain subcarrier spacing and to receive pattern information of a time slot configuration period before determining valid bits in a bit map for resource pool configuration.

In one embodiment, the pattern information is pattern 1, and the determining module 32 is adapted to determine the valid bits in the bit map for the resource pool configuration using the following formula:

In yet another embodiment, the pattern information is pattern 1 and pattern 2, and valid bits in the bitmap for the resource pool configuration are determined using the following formula, where L represents the length of the valid bits, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 The number of uplink time slots in the pattern 2 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, and RU tableShowing the number of time domain symbols contained in the time domain resource unit, u _SL Index representing the side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, floor () represents rounding down.

In yet another embodiment, the pattern information is pattern 1, and the valid bits in the bit map for resource pool configuration are determined using the following formula:

In yet another embodiment, the pattern information is pattern 1 and pattern 2, and the valid bits in the bit map for the resource pool configuration are determined using the following formula:

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 Represents the number of uplink time slots in the pattern 2, and U represents the reference subcarrier spacingIn the corresponding time slot, the number of symbols contained in each uplink time slot, RU represents the number of time domain symbols contained in the time domain resource unit, u _SL Index representing the side chain subcarrier spacing, u _ref The ceil () represents the index of the reference subcarrier spacing and is rounded up.

In yet another embodiment, the first part of bits of the bit map is used to indicate whether a time slot is available, and the second part of bits of the bit map is used to indicate whether a time domain resource unit is available, the determining module 32 may include: a first calculation sub-module 321, said first calculation sub-module 321 being adapted to calculate the available time slots using the following formula if the preconfigured time slot configuration period is pattern 1:

Wherein Lslot represents the number of available time slots, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots The number of uplink time slots in the pattern 1 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and U _SL Index representing the side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, ceil () represents rounding up; a first indication sub-module 322 adapted to indicate said time domain resource units using Lslot RIVs.

In yet another embodiment, the first part of bits of the bit map is used to indicate whether a time slot is available, and the second part of bits of the bit map is used to indicate whether a time domain resource unit is available, the determining module 22 may include: a second calculation sub-module 323, said second calculation sub-module 323 being adapted to calculate the available time slots using the following formula, if the preconfigured time slot configuration period is pattern 1 and pattern 2:

wherein Lslot represents the number of available time slots, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 The number of uplink time slots in the pattern 2 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, U _SL Index representing the side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, ceil () represents rounding up; a second indication sub-module 324 is adapted to indicate the time domain resource units with Lslot RIVs.

Wherein the number of bits occupied by each RIV is log ₂ [ceil(U/RU)·(ceil(U/RU)-1)/2]。

For more details of the working principle and the working manner of the configuration device 3, reference may be made to the related descriptions in fig. 3 to 8, which are not repeated here.

Fig. 13 is a schematic structural diagram of a configuration apparatus for a resource pool according to an embodiment of the present invention, where the configuration apparatus 4 for a resource pool (hereinafter referred to simply as configuration apparatus 4) may be used to implement the method technical solution shown in fig. 9, and is executed by a network-side base station.

Specifically, the configuration device 4 may include: a determining module 41, adapted to determine the number of time domain symbols comprised in a time domain resource unit, so as to obtain configuration information of the time domain resource unit; a first sending module 42 is adapted to send configuration information of the time domain resource unit.

In a specific implementation, the configuration device 4 may further include: the second transmitting module 43 is adapted to transmit the reference subcarrier spacing and to transmit pattern information of a slot configuration period.

In a specific implementation, the configuration device 4 may further include: the third transmitting module 44 is adapted to transmit the side-chain subcarrier spacing and transmit pattern information of the slot configuration period.

For more details of the operation principle and operation manner of the ue 1 and the bs 2 in the application scenario shown in fig. 13, reference may be made to the description related to fig. 9, which is not repeated here.

Further, the embodiment of the invention also discloses a storage medium, on which computer instructions are stored, and the computer instructions execute the technical scheme of the method in the embodiment shown in the above-mentioned fig. 3 to 9 when running. Preferably, the storage medium may include a computer-readable storage medium. The storage medium may include ROM, RAM, magnetic or optical disks, and the like.

Further, the embodiment of the invention also discloses a terminal, which comprises a memory and a processor, wherein the memory stores computer instructions capable of running on the processor, and the processor executes the technical scheme of the method in the embodiment shown in the figures 3 to 8 when running the computer instructions. Preferably, the base station may interact with the user equipment, in particular the terminal may be a user equipment, such as a V2X UE.

Further, the embodiment of the invention also discloses a base station, which comprises a memory and a processor, wherein the memory stores computer instructions capable of running on the processor, and the processor executes the technical scheme of the method in the embodiment shown in fig. 9 when running the computer instructions. Specifically, the base station may be an NR base station.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A method for configuring a resource pool, comprising:

Receiving configuration information of a time domain resource unit, wherein the configuration information is used for indicating the number of time domain symbols contained in the time domain resource unit;

determining effective bits in a bit map used for configuring a resource pool according to the number of time domain symbols contained in the time domain resource unit, wherein the effective bits refer to bits used for configuring a side chain to use the resource pool in the bit map;

wherein at least a portion of bits in the bit map are used to indicate whether the time domain resource unit is available.

2. The configuration method according to claim 1, wherein the number of time domain symbols refers to the number of symbols associated with a reference subcarrier spacing.

3. The configuration method according to claim 2, characterized in that before determining the valid bits in the bit map for resource pool configuration, the configuration method further comprises:

and receiving the reference subcarrier interval and receiving pattern information of a time slot configuration period.

4. A configuration method according to claim 3, characterized in that the pattern information is pattern 1, and the valid bits in the bit map for resource pool configuration are determined using the following formula:

L＝floor(u _sym /RU)+floor(U/RU)·u _slots ，

5. The allocation method according to claim 3, wherein the pattern information is pattern 1 and pattern 2, and valid bits in the bit map for resource pool allocation are determined using the following formula:

L＝floor(u _sym /RU)+floor(U/RU)·u _slots +floor(u _sym,2 /RU)+floor(U/RU)·u _slots,2 ，

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 And (3) representing the number of uplink time slots in the pattern 2, wherein U represents the number of symbols contained in each time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and floor () represents the downward rounding.

6. A configuration method according to claim 3, characterized in that the pattern information is pattern 1, and the valid bits in the bit map for resource pool configuration are determined using the following formula:

L＝ceil(u _sym /RU)+ceil(U/RU)·u _slots ，

7. A configuration method according to claim 3, characterized in that the pattern information is pattern 1 and pattern 2, and the valid bits in the bit map are determined using the following formula:

8. The configuration method according to claim 1, wherein the number of time domain symbols refers to the number of symbols associated with side chain subcarrier spacing.

9. The configuration method according to claim 8, characterized in that before determining the valid bits in the bit map for resource pool configuration, the configuration method further comprises:

and receiving the side chain subcarrier interval and receiving pattern information of a time slot configuration period.

10. The configuration method according to claim 9, wherein the pattern information is pattern 1, and valid bits in the bit map for resource pool configuration are determined using the following formula:

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots The number of uplink time slots in the pattern 1 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and U _SL Representing the side chain sub-carrierIndex of interval, u _ref Index representing reference subcarrier spacing, floor () represents rounding down.

11. The configuration method according to claim 9, wherein the pattern information is pattern 1 and pattern 2, and valid bits in the bit map for resource pool configuration are determined using the following formula:

12. The configuration method according to claim 9, wherein the pattern information is pattern 1, and valid bits in the bit map for resource pool configuration are determined using the following formula:

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Represents the number of uplink time slots in the pattern 1, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, and RU represents the time domainThe number of time domain symbols contained in the resource unit, u _SL Index representing the side chain subcarrier spacing, u _ref The ceil () represents the index of the reference subcarrier spacing and is rounded up.

13. The configuration method according to claim 9, wherein the pattern information is pattern 1 and pattern 2, and valid bits in the bit map for resource pool configuration are determined using the following formula:

wherein L represents the length of the significant bit, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 The number of uplink time slots in the pattern 2 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, U _SL Index representing the side chain subcarrier spacing, u _ref The ceil () represents the index of the reference subcarrier spacing and is rounded up.

14. The configuration method according to claim 1, wherein a first part of bits of the bit map is used to indicate whether a slot is available, and a second part of bits of the bit map is used to indicate whether the time domain resource unit is available, and wherein determining valid bits in the bit map according to the configuration information of the time domain resource unit comprises:

If the preconfigured slot configuration period is pattern 1, the available slots are calculated using the following formula:

wherein Lslot represents the number of available time slots, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots The number of uplink time slots in the pattern 1 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, and U _SL Index indicating side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, ceil () represents rounding up;

and indicating the time domain resource units by using Lslow RIVs.

15. The configuration method according to claim 1, wherein a first part of bits of the bit map is used to indicate whether a slot is available, and a second part of bits of the bit map is used to indicate whether the time domain resource unit is available, and wherein determining valid bits in the bit map according to the configuration information of the time domain resource unit comprises:

if the preconfigured slot configuration period is pattern 1 and pattern 2, the available slots are calculated using the following formula:

wherein Lslot represents the number of available time slots, u _sym Representing the number of uplink symbols before uplink time slot in the pattern 1, u _slots Representing the number of uplink timeslots in pattern 1, u _sym,2 Representing the number of uplink symbols before uplink time slot in the pattern 2, u _slots,2 The number of uplink time slots in the pattern 2 is represented, U represents the number of symbols contained in each uplink time slot in the time slot corresponding to the reference subcarrier interval, RU represents the number of time domain symbols contained in the time domain resource unit, U _SL Index indicating side chain subcarrier spacing, u _ref Index representing reference subcarrier spacing, ceil () represents rounding up;

and indicating the time domain resource units by using Lslow RIVs.

16. A method of configuring as claimed in claim 14 or 15, wherein the number of bits occupied by each RIV is log ₂ [ceil(U/RU)·(ceil(U/RU)-1)/2]。

17. A method for configuring a resource pool, comprising:

determining the number of time domain symbols contained in a time domain resource unit to obtain configuration information of the time domain resource unit;

transmitting configuration information of the time domain resource unit, so that a terminal determines effective bits in a bit map used for resource pool configuration according to the number of time domain symbols contained in the time domain resource unit, wherein the effective bits refer to bits used for configuring a side chain to use the resource pool in the bit map;

Wherein, the number of time domain symbols refers to the number of symbols associated with the reference subcarrier spacing, or the number of time domain symbols refers to the number of symbols associated with the side chain subcarrier spacing.

18. The configuration method according to claim 17, characterized by further comprising: and transmitting the reference subcarrier spacing and transmitting pattern information of a time slot configuration period.

19. The configuration method according to claim 17, characterized by further comprising:

and sending the side chain subcarrier interval and sending pattern information of a time slot configuration period.

20. A resource pool configuration apparatus, comprising:

the first receiving module is suitable for receiving configuration information of a time domain resource unit, wherein the configuration information is used for indicating the number of time domain symbols contained in the time domain resource unit;

the determining module is suitable for determining effective bits in a bit map used for configuring a resource pool according to the number of time domain symbols contained in the time domain resource unit, wherein the effective bits refer to bits used for configuring a side chain to use the resource pool in the bit map;

21. A resource pool configuration apparatus, comprising:

a determining module, adapted to determine the number of time domain symbols contained in a time domain resource unit, so as to obtain configuration information of the time domain resource unit;

the first sending module is suitable for sending configuration information of the time domain resource unit, so that the terminal determines valid bit in a bit map used for resource pool configuration according to the number of time domain symbols contained in the time domain resource unit, wherein the valid bit refers to bit in the bit map used for configuring a side chain to use the resource pool;

22. A storage medium having stored thereon computer instructions which, when run, perform the steps of any of claims 1 to 16 or perform the method of any of claims 17 to 19.

23. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any of claims 1 to 16.

24. A base station comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any of claims 17 to 19.