CN109803380B - Resource allocation method and communication base station

Info

Abstract

Description

Claims

CN109803380B

Publication number: CN109803380B
Application number: CN201711139098.9A
Authority: CN
Inventors: 周欢
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2017-11-16
Filing date: 2017-11-16
Publication date: 2022-06-24
Anticipated expiration: 2037-11-16
Also published as: CN109803380A

The embodiment of the application discloses a resource allocation method and a communication base station, the communication base station judges whether a target time slot at least comprises a first switching point and a second switching point according to time slot format information of the target time slot, if the communication base station determines that the target time slot at least comprises the first switching point and the second switching point, the communication base station allocates the target time slot according to a preset resource allocation strategy to obtain a first starting symbol and a first symbol length and a second starting symbol and a second symbol length, a symbol with the first symbol length from the first starting symbol is an uplink symbol or a downlink symbol in the first switching point, a symbol with the second symbol length from the second starting symbol is an uplink symbol or a downlink symbol in the second switching point, the communication base station allocates a first time domain resource with a first symbol length from a first starting symbol and a second time domain resource with a second symbol length from a second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel.

Resource allocation method and communication base station

Technical Field

The embodiment of the present application relates to the field of communications, and in particular, to a resource allocation method and a communication base station.

Background

The radio frame with the time domain length of 10ms in the 3GPP NR system comprises 10 subframes with the length of 1ms, each subframe comprises a plurality of time slots, and each time slot is composed of a certain number of symbols. Time slot format information is introduced in the 3GPP NR and is used for informing the number and the position of downlink, unknown symbols and uplink symbols in a time slot of a user terminal. One or two downlink/uplink switching points may exist in a single time slot format, each downlink/uplink switching point is composed of at least one unknown symbol and one downlink symbol or uplink symbol, the sequence of the symbols in the downlink/uplink switching points is from front to back the downlink symbol, the unknown symbol and the uplink symbol, and the downlink/uplink switching points are used for handling the situations of an urgent need of an uplink or an uplink and the like. There may be no downlink/uplink switching point in a single slot format, and all symbols in a slot are uplink symbols, downlink symbols, or unknown symbols.

The communication base station transmits downlink data to the user terminal, the user terminal transmits uplink data to the communication base station, and the uplink data and the downlink data can be transmitted in the same frequency channel or in two separated symmetrical frequencies. The physical channel for transmitting the uplink data is a physical uplink shared channel, and the physical channel for transmitting the downlink data is a physical downlink shared channel. For a time slot with certain time slot format information, the communication base station allocates continuous uplink symbols with a certain length and continuous downlink symbols with a certain length in the time slot to the physical uplink shared channel and the physical downlink shared channel according to a resource allocation strategy. When the communication base station allocates the resources in the time slot to the physical uplink shared channel, determining a starting (uplink) symbol and a symbol length, the communication base station allocates the time domain resources of the symbol length from the starting symbol to the physical uplink shared channel, the communication base station determines the index corresponding to the starting symbol and the symbol length, and configures the corresponding relation between the starting symbol, the symbol length and the index to the user terminal through RRC, and the downlink control information sent to the user terminal by the communication base station contains the index, so that the user terminal determines that the resources of the symbol length from the starting symbol of the time slot are all allocated to the physical uplink shared channel according to the corresponding relation and the index.

In the prior art, for a time slot including two switching points, an uplink symbol or a downlink symbol in the time slot is separated by an unknown symbol, which results in discontinuous uplink or downlink symbol, two consecutive uplink or downlink symbols may occur, when a communication base station allocates a resource in the time slot to a physical uplink shared channel or a physical downlink shared channel, a starting symbol and a symbol length are determined, the symbol of the starting symbol starting from the symbol length is included in one consecutive uplink or downlink symbol, the communication base station allocates a time domain resource of the symbol length starting from the starting symbol to the uplink shared channel or the physical downlink shared channel, and a time domain resource corresponding to the other consecutive uplink or downlink symbol cannot be allocated to the uplink shared channel or the physical downlink shared channel.

Disclosure of Invention

The embodiment of the application provides a resource allocation method and a communication base station, wherein the communication base station can allocate time domain resources corresponding to two sections of uplink or downlink symbols to an uplink shared channel or a physical downlink shared channel, so that the utilization rate of time slot resource allocation is improved.

The embodiment of the application provides a resource allocation method, which comprises the following steps:

the communication base station judges whether the target time slot at least comprises a first switching point and a second switching point according to the time slot format information of the target time slot;

if the communication base station determines that the target time slot at least comprises a first switching point and a second switching point, the communication base station allocates the target time slot according to a preset resource allocation strategy to obtain a first starting symbol, a first symbol length and a second starting symbol length, wherein a symbol with the first symbol length from the first starting symbol is an uplink symbol or a downlink symbol in the first switching point, and a symbol with the second symbol length from the second starting symbol is an uplink symbol or a downlink symbol in the second switching point;

and the communication base station allocates a first time domain resource with a first symbol length from the first starting symbol and a second time domain resource with a second symbol length from the second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel.

Optionally, after the communication base station allocates a first time domain resource with a first symbol length from the first starting symbol and a second time domain resource with a second symbol length from the second starting symbol to the physical layer downlink shared channel or the physical layer uplink shared channel, the method further includes:

the communication base station determining a first index corresponding to the first starting symbol and the first symbol length and the second starting symbol and the second symbol length;

and the communication base station sends the first index to a user terminal so that the user terminal determines the first starting symbol and the first symbol length and the second starting symbol and the second symbol length corresponding to the first index according to a preset first corresponding relation.

Optionally, the preset resource allocation policy includes a preset first rule, where the first rule is used for the communication base station to determine the second start symbol according to the slot format information of the target slot;

optionally, the method further includes:

and the communication base station sends the time slot format information of the target time slot to a user terminal, so that the user terminal determines the second starting symbol according to the first rule and the time slot format information.

the communication base station determines a second index corresponding to the first start symbol, the first symbol length and the second symbol length;

and the communication base station sends the second index to a user terminal so that the user terminal determines the first starting symbol, the first symbol length and the second symbol length corresponding to the second index according to a preset second corresponding relation.

the communication base station determines a third index corresponding to the first starting symbol and a third symbol length, wherein the third symbol length is equal to the sum of the first symbol length and the second symbol length;

and the communication base station sends the third index to the user terminal, so that the user terminal determines the first starting symbol and the third symbol length corresponding to the third index according to a preset third corresponding relation.

Optionally, the preset resource allocation policy includes a preset second rule, where the second rule is used for the communication base station to determine the first symbol length, the second start symbol length, and the second symbol length according to the slot format information of the target slot, the first start symbol, and the third symbol length;

optionally, the method further includes:

and the communication base station sends the time slot format information of the target time slot to a user terminal, so that the user terminal determines the first symbol length, the second starting symbol and the second symbol length according to the second rule, the first starting symbol, the third symbol length and the time slot format information.

An embodiment of the present application provides a communication base station, including:

the judging unit is used for judging whether the target time slot at least comprises a first switching point and a second switching point according to the time slot format information of the target time slot;

a first allocation unit, configured to, when the determination unit determines that the target timeslot includes at least a first switching point and a second switching point, allocate the target timeslot according to a preset resource allocation policy to obtain a first starting symbol and a first symbol length and a second starting symbol and a second symbol length, where a symbol of the first symbol length starting from the first starting symbol is an uplink symbol or a downlink symbol in the first switching point, and a symbol of the second symbol length starting from the second starting symbol is an uplink symbol or a downlink symbol in the second switching point;

a second allocating unit, configured to allocate a first time domain resource with a first symbol length from the first starting symbol and a second time domain resource with a second symbol length from the second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel.

Optionally, the communication base station further includes:

a first determining unit for determining a first index corresponding to the first start symbol and the first symbol length and the second start symbol and the second symbol length;

a first sending unit, configured to send the first index to a user terminal, so that the user terminal determines, according to a preset first correspondence, the first start symbol and the first symbol length, and the second start symbol and the second symbol length that correspond to the first index.

Optionally, the communication base station further includes:

a second sending unit, configured to send the slot format information of the target slot to a user terminal, so that the user terminal determines the second starting symbol according to the first rule and the slot format information.

Optionally, the communication base station further includes:

a second determining unit for determining a second index corresponding to the first start symbol, the first symbol length, and the second symbol length;

a third sending unit, configured to send the second index to a user terminal, so that the user terminal determines, according to a preset second correspondence, the first starting symbol, the first symbol length, and the second symbol length corresponding to the second index.

Optionally, the communication base station further includes:

a third determining unit, configured to determine a third index corresponding to the first starting symbol and a third symbol length, where the third symbol length is equal to a sum of the first symbol length and the second symbol length;

a fourth sending unit, configured to send the third index to the user terminal, so that the user terminal determines the first starting symbol and the third symbol length corresponding to the third index according to a preset third correspondence.

Optionally, the communication base station further includes:

a fifth sending unit, configured to send the slot format information of the target slot to a user equipment, so that the user equipment determines the first symbol length, the second start symbol, and the second symbol length according to the second rule, the first start symbol, the third symbol length, and the slot format information.

An embodiment of the present application provides another communication base station, including:

a processor, a memory, an input-output device, and a bus;

the processor, the memory and the input and output equipment are respectively connected with the bus;

the processor is used for judging whether the target time slot at least comprises a first switching point and a second switching point according to the time slot format information of the target time slot; when the time slot format information of a target time slot is determined to judge that the target time slot at least comprises a first switching point and a second switching point, allocating the target time slot according to a preset resource allocation strategy to obtain a first starting symbol, a first symbol length and a second starting symbol length, wherein a symbol with the first symbol length from the first starting symbol is an uplink symbol or a downlink symbol in the first switching point, and a symbol with the second symbol length from the second starting symbol is an uplink symbol or a downlink symbol in the second switching point; and allocating a first time domain resource with a first symbol length from the first starting symbol and a second time domain resource with a second symbol length from the second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel.

Optionally, the processor is further configured to determine a first index corresponding to the first start symbol and the first symbol length and the second start symbol and the second symbol length;

the input and output device is configured to send the first index to a user terminal, so that the user terminal determines the first start symbol and the first symbol length and the second start symbol and the second symbol length corresponding to the first index according to a preset first correspondence.

Optionally, the input/output device is further configured to send the slot format information of the target slot to a user terminal, so that the user terminal determines the second starting symbol according to the first rule and the slot format information.

Optionally, the processor is further configured to determine a second index corresponding to the first starting symbol, the first symbol length, and the second symbol length;

the input and output device is further configured to send the second index to a user terminal, so that the user terminal determines the first starting symbol, the first symbol length, and the second symbol length corresponding to the second index according to a preset second correspondence.

Optionally, the processor is further configured to determine a third index corresponding to the first start symbol and a third symbol length, where the third symbol length is equal to a sum of the first symbol length and the second symbol length;

the input and output device is further configured to send the third index to the user terminal, so that the user terminal determines the first starting symbol and the third symbol length corresponding to the third index according to a preset third correspondence.

Optionally, the input/output device is further configured to send the slot format information of the target slot to a user terminal, so that the user terminal determines the first symbol length, the second start symbol length, and the second symbol length according to the second rule, the first start symbol, the third symbol length, and the slot format information.

Embodiments of the present application provide a computer program product containing instructions, which when run on a computer, includes computer software instructions that can be loaded by a processor to implement the method flow of the above-mentioned communication base station.

Another computer-readable storage medium includes instructions that, when executed on a computer, cause the computer to perform the method flow of the communication base station.

According to the technical scheme, the embodiment of the application has the following advantages:

the communication base station judges whether the target time slot at least comprises a first switching point and a second switching point according to the time slot format information of the target time slot, if the communication base station determines that the target time slot at least comprises the first switching point and the second switching point, the communication base station allocates the target time slot according to a preset resource allocation strategy to obtain a first starting symbol and a first symbol length and a second starting symbol and a second symbol length, a symbol with the first symbol length from the first starting symbol is an uplink symbol or a downlink symbol in the first switching point, a symbol with the second symbol length from the second starting symbol is an uplink symbol or a downlink symbol in the second switching point, and the communication base station allocates a first time domain resource with the first symbol length from the first starting symbol and a second time domain resource with the second symbol length from the second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel, the communication base station can allocate the time domain resources corresponding to the two sections of uplink or downlink symbols to the uplink shared channel or the physical downlink shared channel, so that the utilization rate during time slot resource allocation is improved.

Drawings

Fig. 1 is a schematic diagram of a system architecture of a resource allocation method according to an embodiment of the present application;

FIG. 2a is a diagram illustrating a single slot format according to an embodiment of the present application;

FIG. 2b is a diagram illustrating another single slot format according to an embodiment of the present application;

FIG. 2c is a diagram of another single slot format in the embodiment of the present application;

FIG. 2d is a diagram illustrating another single slot format according to an embodiment of the present application;

FIG. 2e is a diagram illustrating another single slot format in the embodiment of the present application;

FIG. 3 is a schematic diagram of an embodiment of a resource allocation method in the embodiment of the present application;

fig. 4 is a schematic diagram of another embodiment of a resource allocation method in the embodiment of the present application;

FIG. 5 is a schematic diagram of a target timeslot allocated by resources according to an embodiment of the present application;

fig. 6 is a schematic diagram of another embodiment of a resource allocation method in the embodiment of the present application;

fig. 7 is a schematic diagram of another embodiment of a resource allocation method in the embodiment of the present application;

FIG. 8 is a schematic diagram of another target timeslot allocated by resources in this embodiment;

fig. 9 is a schematic diagram of an embodiment of a communication base station in the embodiment of the present application;

fig. 10 is a schematic diagram of another embodiment of the communication base station in the embodiment of the present application.

Detailed Description

Referring to fig. 1, in a system architecture of a resource allocation method, a communication base station 101 is connected to a User Equipment (UE) 102 through an air interface, and the main functions of the communication base station 101 include IP header compression and user data stream encryption, selection of a Mobile Management Entity (MME) when the UE 102 is attached, scheduling transmission of paging information, scheduling transmission of broadcast information, and the like. The transmission of signals from the communication base station 101 to the user terminal 102 is called Downlink (DL), the transmission of signals from the user terminal 102 to the communication base station 101 is called Uplink (UL), and the uplink and downlink data may be transmitted in the same frequency channel or in two separate symmetric frequencies.

A radio frame supported by a 3GPP radio access (NR) over an air interface is composed of a fixed structure and a flexible structure, where the radio frame time domain length of the fixed structure is 10ms, each radio frame is divided into 10 subframes with the same size and length of 1ms, each subframe may include a plurality of slots such as 1, 2, or 4, each slot includes a certain number of symbols symbol, such as 7 or 14 symbols, the number of symbols is determined by a Cyclic Prefix (CP) type, which is not limited herein, and in the following embodiments, only one slot includes 14 symbols as an example.

The 3GPP NR includes Slot Format Information (SFI), where the SFI is used to notify the user terminal 102 of the number and position of DL symbols, un-nown symbols, and UL symbols in a certain slot, and the SFI may be configured to the user terminal 102 through semi-static cell Radio Resource Control (RRC) signaling, and then configured through UE-specific RRC signaling, and finally may also use a group common physical downlink Control channel (GC-PDCCH) to send the dynamic SFI to a group of UEs, and the SFI carried on the GC-PDCCH may indicate one or more slots. After the SFI is monitored by the ue 102, it can know which symbols in the corresponding timeslot are UL symbols, which are DL symbols, and which are unknown symbols, where the unknown symbols can also be dynamically configured as UL symbols or DL symbols, and the specific details are not limited herein.

Currently, 256 slot formats can be supported in 3GPP NR, and it is currently determined that a single slot format contains at most two downlink/uplink switching points per slot. The downlink/uplink switching point consists of at least one unknown symbol and one downlink symbol or uplink symbol, the symbols in the downlink/uplink switching point are the downlink symbol, the unknown symbol and the uplink symbol from front to back, and the downlink/uplink switching point is used for responding to the situations of urgent need of the uplink or the uplink and the like. There may be 0 downlink/uplink switching points in a timeslot, such as 14 downlink symbols or 14 unknown symbols or 14 uplink symbols, which may refer to fig. 2a, 2b, and 2 c; there may be 1 downlink/uplink switching point in a timeslot, such as a timeslot starting at 0 or more UL symbols, ending at 0 or more UL symbols, with an unknown symbol in the middle, and at least 1 unknown symbol and 1 DL symbol or 1 UL symbol, as shown in fig. 2 d; there may be 2 downlink/uplink switching points in a slot, such as the first 7 symbols of the slot starting from 0 or more DL symbols, ending with at least 1 UL symbol at symbol 6, with an intervening un-known symbol, and the last 7 symbols of the slot starting from 0 or more DL symbols, ending with 0 or more UL symbols, with an intervening 0 or more un-known symbol, as shown in fig. 2 e.

The physical channel for uplink data transmission is a Physical Uplink Shared Channel (PUSCH), and the physical channel for downlink data transmission is a Physical Downlink Shared Channel (PDSCH). In the 3GPP NR system, the PDCCH is used to transmit downlink scheduling control information (DCI) which is uplink and downlink scheduling control information, and determines control information such as resource allocation, a frequency modulation type, and a transmission mode of the PUSCH and the PDSCH. When the communication base station 101 allocates uplink or downlink symbols of a continuous length in a time slot to the PUSCH or PDSCH, a starting (uplink or downlink) symbol start symbol and a symbol length of the time slot corresponding to the uplink or downlink symbol of the length are determined, an index corresponding to the starting symbol and the symbol length is determined, a correspondence between the starting symbol and the index and a correspondence between the symbol length and the index are preset by the communication base station 101 and configured to the user terminal 102 through semi-static cell-level RRC signaling, and the correspondence between the starting symbol and the symbol length is also in a correspondence preset by the communication base station 101. The communication base station 101 includes the index in the DCI and carries the DCI on the PDCCH, the user terminal 102 parses the DCI in the PDCCH to obtain the index, obtains the starting symbol and the symbol length through a preset corresponding relationship, and determines that the time domain resource of the symbol length from the starting symbol is allocated to the PUSCH or PDSCH.

Referring to fig. 3, an embodiment of a resource allocation method according to the present application includes:

301. the communication base station judges whether the target time slot at least comprises a first switching point and a second switching point according to the time slot format information of the target time slot, if so, the step 302 is executed, and if not, the step 304 is executed;

in this embodiment, when the communication base station performs resource allocation on the target time slot, the communication base station may obtain the time slot format information SFI of the target time slot, and the communication base station determines whether the target time slot at least includes the first switching point and the second switching point according to the SFI of the target time slot.

302. The communication base station allocates a target time slot according to a preset resource allocation strategy to obtain a first initial symbol and a first symbol length as well as a second initial symbol and a second symbol length;

in this embodiment, if the communication base station determines that the target timeslot at least includes a first switching point and a second switching point, where both the first switching point and the second switching point include uplink symbols, or both the first switching point and the second switching point include downlink symbols, the communication base station may allocate the target timeslot according to a preset resource allocation policy to obtain a first starting symbol, a first symbol length, and a second starting symbol and a second symbol length, where a symbol of the first symbol length from the first starting symbol is an uplink or downlink symbol in the first switching point, and a symbol of the second symbol length from the second starting symbol is an uplink or downlink symbol in the second switching point.

303. A communication base station allocates a first time domain resource with a first symbol length from a first starting symbol and a second time domain resource with a second symbol length from a second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel;

after the communication base station determines the first starting symbol and the first symbol length, and the second starting symbol and the second symbol length, if the first starting symbol and the second starting symbol are uplink symbols, the communication base station may allocate a first time domain resource of the first symbol length from the first starting symbol and a second time domain resource of the second symbol length from the second starting symbol to the physical layer uplink shared channel PUSCH, and if the first starting symbol and the second starting symbol are downlink symbols, the communication base station may allocate a first time domain resource of the first symbol length from the first starting symbol and a second time domain resource of the second symbol length from the second starting symbol to the physical layer downlink shared channel PDSCH, which is not limited herein.

304. The communication base station performs other operations.

In this embodiment, if the communication base station determines that the target timeslot does not have the first switching point and the second switching point, for example, the target timeslot has only 1 switching point or 0 switching point, the communication base station may perform other operations, the communication base station may not allocate resources, and the communication base station may also allocate consecutive downlink symbols or uplink symbols of the target timeslot to the PDSCH or the PUSCH, which is not limited herein.

In the embodiment of the application, a communication base station judges whether a target time slot at least comprises a first switching point and a second switching point according to time slot format information of the target time slot, if the communication base station determines that the target time slot at least comprises the first switching point and the second switching point, the communication base station allocates the target time slot according to a preset resource allocation strategy to obtain a first starting symbol and a first symbol length and a second starting symbol and a second symbol length, a symbol with the first symbol length starting from the first starting symbol is an uplink symbol or a downlink symbol in the first switching point, a symbol with the second symbol length starting from the second starting symbol is an uplink symbol or a downlink symbol in the second switching point, the communication base station allocates a first time domain resource with the first symbol length starting from the first starting symbol and a second time domain resource with the second symbol length starting from the second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel, the communication base station can allocate the time domain resources corresponding to the two sections of uplink or downlink symbols to the uplink shared channel or the physical downlink shared channel, so that the utilization rate during time slot resource allocation is improved.

In the embodiment of the present application, the number of symbols of the target timeslot is determined by the CP, and the number of symbols is not limited here, and in the following embodiments, only the number of symbols of the target timeslot is taken as an example and is explained as 14.

In this embodiment, the first switching point and the second switching point may both include uplink symbols, the communication base station may allocate, to the PUSCH, time domain resources of the uplink symbols with a certain length in the first switching point and the second switching point, and both the first switching point and the second switching point may include downlink symbols, and the communication base station may allocate, to the PDSCH, the time domain resources of the downlink symbols with a certain length in the first switching point and the second switching point.

In the embodiment of the present application, the preset corresponding relationship between the start symbol and the symbol length and the index may exist in a table form (UE-specific table), or may exist in other forms such as a linked list, which is not limited herein. In this embodiment of the present application, the UE-specific table may be configured to the UE through a semi-static cell-level RRC signaling, or may be configured to the UE through a UE-specific RRC signaling, which is not specifically limited herein.

In the embodiment of the application, the time slot format information SFI of the target time slot may be configured to the UE through semi-static cell-level RRC signaling, or may be configured to the UE through UE-specific RRC signaling, where the SFI of the target time slot is semi-static; the SFI of the target timeslot may also be dynamic, and the communication base station may convert an unknown symbol in the target timeslot into a DL symbol or a UL symbol, which is not limited herein. In the following embodiments, the SFI of the target slot is determined only when the communication base station allocates the time domain resource of the target slot to the PDSCH and the PUSCH, as an example.

In the embodiments of the present application, the first starting symbol may be before the second starting symbol, or may be after the second starting symbol, and specific details are not limited herein.

In the embodiment of the present application, after the communication base station determines a first starting symbol and a first symbol length, and a second starting symbol and a second symbol length, and allocates a first time domain resource of the first symbol length from the first starting symbol and a second time domain resource of the second symbol length from the second starting symbol to the physical layer downlink shared channel or the physical layer uplink shared channel, the communication base station may determine a plurality of indexes corresponding to the starting symbol and the symbol lengths, and send the indexes to the UE through DCI, so that the UE determines a time domain resource allocated to a PUSCH or a PDSCH in a target slot. The following are described separately:

firstly, a communication base station sends a first index corresponding to a first starting symbol and a first symbol length and a second starting symbol and a second symbol length to UE;

in this embodiment, the communication base station may determine a first index corresponding to the first starting symbol and the first symbol length, and the second starting symbol and the second symbol length, and send the first index to the UE, specifically referring to fig. 4, in an embodiment of the present application, another embodiment of the service processing method includes:

401. the communication base station sends the UE special table to the UE;

in this embodiment, the UE-specific table may be configured to the UE through semi-static cell-level RRC signaling, or may be configured to the UE through UE-specific RRC signaling, which is not limited herein. The UE-specific table can be referred to table 1 below.

TABLE 1

402. The communication base station judges whether the target time slot at least comprises a first switching point and a second switching point according to the time slot format information of the target time slot, if so, the step 409 is executed, and if not, the step 403 is executed;

the communication base station may determine whether the target timeslot includes at least a first handover point and a second handover point according to the SFI of the target timeslot, in this embodiment, both the first handover point and the second handover point include DL symbols, if the communication base station determines that the target timeslot includes the first handover point and the second handover point, step 409 is executed, and if the communication base station determines that the target timeslot does not include the first handover point and the second handover point, step 403 is executed.

403. The communication base station determines a fourth starting symbol and a fourth symbol length according to a preset second resource allocation strategy;

if the communication base station determines that the target time slot includes 0 or 1 handover point, there may be a continuous segment of DL symbols in the target time slot, the communication base station may perform other operations, the communication base station may not allocate resources, and the communication base station may also allocate, according to a preset second resource allocation method, time domain resources of the continuous segment of DL symbols in the target time slot to the PDSCH. The preset second resource allocation policy may be a preset certain resource allocation algorithm, or may also be a certain allocation policy determined by the communication base station according to a network condition, uplink and downlink data requirements, and the like, which is not limited herein.

404. The communication base station allocates the time domain resource with the length of the fourth symbol from the fourth starting symbol to the PDSCH in the target time slot;

the communication base station may allocate the time domain resource of the fourth symbol length from the fourth starting symbol to the PDSCH according to a standard method, which is not described herein again specifically.

405. The communication base station determines a fourth index corresponding to a fourth starting symbol and a fourth symbol length;

the communication base station may determine the fourth index corresponding to the fourth start symbol and the fourth symbol length according to a standard method, which is not described herein again.

In this embodiment, there is no fixed execution sequence between step 404 and step 405, and step 404 may be executed first, or step 405 may be executed first, or steps 404 and 405 may be executed simultaneously according to circumstances, which is not limited herein.

406. The communication base station sends the DCI containing the fourth index to the UE;

in this embodiment, the communication base station may include the fourth index in the DCI according to a standard method, carry the DCI on the PDCCH, and send the DCI to the UE through the PDCCH, which is not described herein again specifically.

407. The UE analyzes the DCI to obtain a fourth index, and determines a fourth symbol length of a fourth starting symbol according to the fourth index and a UE special table;

after receiving the DCI in the PDCCH, the UE may parse the DCI according to a standard method to obtain a fourth index included in the DCI, and the UE may determine a fourth starting symbol and a fourth symbol length corresponding to the fourth index in the UE-specific table according to the fourth index.

408. The UE determines that the PDSCH is allocated to the time domain resource with the length of a fourth symbol from a fourth starting symbol in the target time slot;

the UE may determine, by analyzing the DCI and the determined fourth starting symbol and the fourth symbol length, that the time domain resource of the fourth symbol length from the fourth starting symbol in the target time slot is allocated to the PDSCH according to a standard method, which is not described herein in detail.

In this embodiment, steps 403 to 408 are a process in which the communication base station determines that the target timeslot includes 0 or 1 switching point, the target timeslot includes a continuous segment of DL symbol, and the communication base station allocates a DL symbol with a certain length in the continuous segment of DL symbol in the target timeslot to the PDSCH, and the communication base station may not perform this process, which is not limited herein.

409. The communication base station determines a first starting symbol and a first symbol length and a second starting symbol and a second symbol length according to a preset resource allocation strategy;

if the communication base station determines that the target timeslot includes the first switching point and the second switching point, referring to fig. 5, in one target timeslot shown in fig. 5, symbols 0 to 6 are the first switching points, and symbols 7 to 13 are the second switching points, the communication base station may determine the first start symbol and the first symbol length and the second start symbol and the second symbol length according to a preset resource allocation policy. The preset resource allocation policy may be a preset certain resource allocation algorithm, or may be a certain allocation policy determined by the communication base station according to a network condition, uplink and downlink data requirements, and the like, and is not limited herein. Referring to fig. 5, in a target timeslot, the communication base station determines that the first start symbol is symbol 3, the first symbol length is 1, the second start symbol is symbol 7, and the second symbol length is 3.

410. The communication base station allocates a first time domain resource with a first symbol length from a first starting symbol and a second time domain resource with a second symbol length from a second starting symbol in a target time slot to the PDSCH;

in this embodiment, the communication base station may allocate, according to a standard method, a first time domain resource of a first symbol length from the first start symbol described in the above step 409 to the PDSCH, and the communication base station may allocate, according to a standard method, a second time domain resource of a second symbol length from the second start symbol described in the above step 409 to the PDSCH. Referring to fig. 5, in one target time slot, the time domain resources allocated to the PDSCH by the communication base station include two segments, a first time domain resource of symbol 3 and a second time domain resource starting from symbol 7 to symbol 9.

411. The communication base station determines a first index corresponding to a first starting symbol and a first symbol length and a second starting symbol and a second symbol length;

in this embodiment, the communication base station may determine a first index corresponding to the first starting symbol and the first symbol length, and the second starting symbol and the second symbol length, where the first index corresponds to the first starting symbol and the first symbol length, and the second starting symbol and the second symbol length in a UE-specific table, and refer to table 1, where a value of the first index is 3.

In this embodiment, there is no fixed execution sequence between step 410 and step 411, and step 410 may be executed first, or step 411 may be executed first, or steps 410 and 411 may be executed simultaneously according to circumstances, which is not limited herein.

412. The communication base station sends DCI containing the first index to the UE;

this step is similar to step 406, and is not described here again.

413. The communication base station analyzes the DCI to obtain a first index, and determines a first initial symbol and a first symbol length and a second initial symbol and a second symbol length according to the first index and the UE special table;

in this embodiment, after receiving the DCI in the PDCCH, the UE may parse the DCI according to a standard method to obtain a first index included in the DCI, and the UE may determine, according to the first index, a first starting symbol and a first symbol length, and a second starting symbol and a second symbol length corresponding to the first index in a UE-specific table.

414. The communication base station determines that a first time domain resource of a first symbol length from a first start symbol and a second time domain resource of a second symbol length from a second start symbol in a target slot are allocated to the PDSCH.

The UE may determine, by analyzing the DCI and the determined first starting symbol, the first symbol length, the second starting symbol, and the second symbol length, that a first time domain resource of the first symbol length from the first starting symbol and a second time domain resource of the second symbol length from the second starting symbol in the target time slot give the PDSCH according to a standard method, which is not described herein in detail.

In this embodiment, the communication base station determines whether the target timeslot at least includes a first switch point and a second switch point according to the timeslot format information of the target timeslot, if the communication base station determines that the target timeslot at least includes the first switch point and the second switch point, the communication base station allocates the target timeslot according to a preset resource allocation policy to obtain a first start symbol and a first symbol length and a second start symbol and a second symbol length, a symbol of the first symbol length from the first start symbol is an uplink symbol or a downlink symbol in the first switch point, a symbol of the second symbol length from the second start symbol is an uplink symbol or a downlink symbol in the second switch point, the communication base station allocates a first time domain resource of the first symbol length from the first start symbol and a second time domain resource of the second symbol length from the second start symbol to a physical layer downlink shared channel or a physical layer uplink shared channel, the communication base station can allocate the time domain resources corresponding to the two sections of uplink or downlink symbols to the uplink shared channel or the physical downlink shared channel, so that the utilization rate during time slot resource allocation is improved.

Secondly, the communication base station sends a second index corresponding to the first starting symbol, the first symbol length and the second symbol length to the UE;

in this embodiment, the communication base station may determine a second index corresponding to the first starting symbol, the first symbol length, and the second symbol length, and send the second index and the SFI of the target timeslot to the UE, specifically referring to fig. 6, another embodiment of the service processing method in this embodiment includes:

601. the communication base station sends the UE special table to the UE;

this step is similar to the step 401 described in fig. 4, and is not described herein again. The UE-specific table can be referred to table 2 below.

TABLE 2

602. The communication base station sends the SFI of the target time slot to the UE;

in this embodiment, the communication base station sends the SFI of the target timeslot to the UE according to a standard method, which is not described herein again.

Steps 603 to 609 in this embodiment are similar to steps 402 to 408 described in fig. 4, and detailed description thereof is omitted here.

In this embodiment, steps 604 to 609 are a process in which the communication base station determines that the target timeslot includes 0 or 1 switching point, the target timeslot includes a continuous segment of DL symbol, and the communication base station allocates a DL symbol with a certain length in the continuous segment of DL symbol in the target timeslot to the PDSCH, or the communication base station may not perform this process, which is not limited herein.

610. The communication base station determines a second initial symbol according to a preset first rule, and determines a first initial symbol, a first symbol length and a second symbol length according to a preset resource allocation strategy;

if the communication base station determines that the target timeslot includes the first switching point and the second switching point, referring to fig. 5, in one target timeslot, symbols 0 to 6 are the first switching points, and symbols 7 to 13 are the second switching points, the communication base station may determine the first start symbol and the first symbol length according to a preset resource allocation policy. The preset resource allocation policy includes a preset first rule, the communication base station may determine a second start symbol according to the preset first rule, and for the target timeslot, after the communication base station determines the second start symbol, the communication base station may determine the second symbol length according to the preset resource allocation policy with reference to the second start symbol. The preset resource allocation policy may be a preset certain resource allocation algorithm, or may be a certain allocation policy determined by the communication base station according to a network condition, uplink and downlink data requirements, and the like, and is not limited herein. The preset first rule may be a certain rule according to a standard, may be a rule set by the base station according to a network situation, and the specific example is not limited herein, and in this embodiment, only an example of "if downlink data is scheduled, the start symbol of the second segment is the start downlink symbol of the second handover point, and if uplink data is scheduled, the start symbol of the second segment is the start uplink symbol of the second handover point" is taken as the preset first rule is described. Referring to fig. 5, in a target timeslot, because resources are allocated to the PDSCH, a symbol 7 is an initial downlink symbol of a second switching point in the target timeslot, the communication base station determines, according to a preset first rule, that the second initial symbol is the symbol 7, and determines, according to a preset resource allocation policy, that the first initial symbol is the symbol 3, the first symbol length is 1, and the second symbol length is 3.

611. The communication base station allocates a first time domain resource with a first symbol length from a first starting symbol and a second time domain resource with a second symbol length from a second starting symbol in a target time slot to the PDSCH;

in this embodiment, the communication base station may allocate a first time domain resource of a first symbol length from the first start symbol described in the above step 610 to the PDSCH according to a standard method, and the communication base station may allocate a second time domain resource of a second symbol length from the second start symbol described in the above step 610 to the PDSCH according to a standard method. Referring to fig. 5, in one target time slot, the time domain resources allocated to the PDSCH by the communication base station include two segments, a first time domain resource of symbol 3 and a second time domain resource starting from symbol 7 to symbol 9.

612. The communication base station determines a second index corresponding to the first starting symbol, the first symbol length and the second symbol length;

in this embodiment, the communication base station may determine a second index corresponding to the first starting symbol, the first symbol length, and the second symbol length, where the second index corresponds to the first starting symbol, the first symbol length, and the second symbol length in the UE-specific table, and refer to table 2, where a value of the second index is 2.

In this embodiment, there is no fixed execution sequence between step 611 and step 612, and step 611 may be executed first, or step 612 may be executed first, or steps 611 and 612 are executed simultaneously according to the situation, which is not limited herein.

613. The communication base station sends the DCI containing the second index to the UE;

this step is similar to step 406 described above in fig. 4, and is not described here again.

614. The UE analyzes the DCI to obtain a second index, and determines a first starting symbol, a first symbol length and a second symbol length according to the second index and the UE special table;

in this embodiment, after receiving the DCI in the PDCCH, the UE may parse the DCI according to a standard method to obtain a second index included in the DCI, and the UE may determine, according to the second index, a first starting symbol, a first symbol length, and a second symbol length corresponding to the second index in a UE-specific table.

615. The UE determines a second initial symbol according to a preset first rule and the SFI of the target time slot;

in this embodiment, the UE may determine the second start symbol according to the preset first rule described in the foregoing step 610, corresponding to the SFI of the target timeslot received by the UE in the foregoing step 602.

616. The communication base station determines that a first time domain resource of a first symbol length from a first start symbol and a second time domain resource of a second symbol length from a second start symbol in a target slot are allocated to the PDSCH.

This step is similar to step 414 described in fig. 4, and will not be described herein again.

In this embodiment, the communication base station determines whether the target timeslot at least includes a first switch point and a second switch point according to the timeslot format information of the target timeslot, if the communication base station determines that the target timeslot at least includes the first switch point and the second switch point, the communication base station allocates the target timeslot according to a preset resource allocation policy to obtain a first start symbol and a first symbol length and a second start symbol and a second symbol length, a symbol of the first symbol length starting from the first start symbol is an uplink symbol or a downlink symbol in the first switch point, a symbol of the second symbol length starting from the second start symbol is an uplink symbol or a downlink symbol in the second switch point, the communication base station allocates a first time domain resource of the first symbol length starting from the first start symbol and a second time domain resource of the second symbol length starting from the second start symbol to a physical layer downlink shared channel or a physical layer uplink shared channel, the communication base station can allocate the time domain resources corresponding to the two sections of uplink or downlink symbols to the uplink shared channel or the physical downlink shared channel, so that the utilization rate during time slot resource allocation is improved.

Thirdly, the communication base station sends a third index corresponding to the first starting symbol and the third symbol length to the UE;

in this embodiment, the communication base station may determine a third index corresponding to the first starting symbol and the third symbol length, and send the third index and the SFI of the target timeslot to the UE, specifically referring to fig. 7, in an embodiment of the present invention, another embodiment of the service processing method includes:

701. the communication base station sends the UE special table to the UE;

this step is similar to the step 401 described in fig. 4, and is not described herein again. The UE-specific table can be referred to table 3 below.

TABLE 3

Steps 702 to 709 in this embodiment are similar to steps 602 to 609 described in fig. 6, and detailed description thereof is omitted here.

In this embodiment, steps 704 to 709 are a process in which the communication base station determines that the target timeslot includes 0 or 1 handover point, the target timeslot includes a continuous segment of DL symbol, and the communication base station allocates a DL symbol with a certain length in the continuous segment of DL symbol in the target timeslot to the PDSCH, or the communication base station may not perform this process, which is not limited herein.

710. The communication base station determines a first initial symbol and a third symbol length according to a preset resource allocation strategy, and determines a first symbol length, a second initial symbol and a second symbol length according to a preset second rule, the first initial symbol and the third symbol length;

if the communication base station determines that the target timeslot includes the first switching point and the second switching point, referring to fig. 8, in one target timeslot, symbols 0 to 6 are the first switching points, and symbols 7 to 13 are the second switching points, the communication base station may determine a first start symbol and a third symbol length according to a preset resource allocation policy, where the third symbol length is a sum of lengths of the first symbol length and the second symbol length. The preset resource allocation policy includes a preset second rule, and the communication base station may determine the first symbol length, the second start symbol, and the second symbol length according to the preset second rule, the first start symbol, and the third symbol length. The preset resource allocation policy may be a preset certain resource allocation algorithm, or may be a certain allocation policy determined by the communication base station according to a network condition, uplink and downlink data requirements, and the like, and is not limited herein. The preset second rule may be a certain rule according to a standard, may be a rule set by the base station according to a network situation, and the specific example is not limited herein, and in this embodiment, the example is described only by taking "if downlink data is scheduled, the allocated symbol is required to be continuous on symbols other than UL symbols, and if uplink data is scheduled, the allocated symbol is required to be continuous on symbols other than DL symbols" as an example of the preset second rule. Referring to fig. 8, in a target timeslot, the communication base station determines, according to a preset resource allocation policy, that a first start symbol is symbol 3 and a third symbol length is 7, and determines, according to a preset second rule, that the first symbol length is 3, the second start symbol is 7, and the second symbol length is 4.

711. The communication base station allocates a first time domain resource with a first symbol length from a first starting symbol and a second time domain resource with a second symbol length from a second starting symbol in a target time slot to the PDSCH;

in this embodiment, the communication base station may allocate, to the PDSCH, the first time domain resources of the first symbol length from the first start symbol described in the above step 710 according to a standard method, and the communication base station may allocate, to the PDSCH, the second time domain resources of the second symbol length from the second start symbol described in the above step 710 according to a standard method. Referring to fig. 8, in one target slot, time domain resources allocated to a PDSCH by a communication base station include two segments, a first time domain resource starting from a symbol 3 to a symbol 5 and a second time domain resource starting from a symbol 7 to a symbol 10.

712. The communication base station determines a third index corresponding to the first starting symbol and a third symbol length;

in this embodiment, the communication base station may determine a third index corresponding to the first start symbol and the third symbol length, where the third index corresponds to the first start symbol and the third symbol length in the UE-specific table, and refer to table 3, and a value of the third index is 2.

In this embodiment, there is no fixed execution sequence between step 711 and step 712, step 711 may be executed first, step 712 may be executed first, or steps 711 and 712 may be executed simultaneously according to circumstances.

713. The communication base station sends the DCI containing the third index to the UE;

714. The UE analyzes the third index and determines a first starting symbol and a third symbol length according to the third index and the UE special table;

in this embodiment, after receiving the DCI in the PDCCH, the UE may parse the DCI according to a standard method to obtain a third index included in the DCI, and the UE may determine, according to the third index, a first starting symbol and a third symbol length corresponding to the third index in a UE-specific table.

715. The UE determines a first symbol length, a second starting symbol and a second symbol length according to a second rule, the SFI of the target time slot, the first starting symbol and the third symbol length;

in this embodiment, the UE may determine the first symbol length, the second start symbol length, and the second symbol length according to the preset second rule described in the foregoing step 710, and corresponding to the SFI, the first start symbol, and the third symbol length of the target timeslot received by the UE in the foregoing step 702.

716. The UE determines that a first time domain resource of a first symbol length from a first starting symbol and a second time domain resource of a second symbol length from a second starting symbol in a target slot are allocated to the PDSCH.

With reference to fig. 9, the resource allocation method in the embodiment of the present application is described above, and a communication base station in the embodiment of the present application is described below, where an embodiment of the communication base station in the embodiment of the present application includes:

a determining unit 901, configured to determine whether a target timeslot at least includes a first switch point and a second switch point according to timeslot format information of the target timeslot;

a first allocating unit 902, configured to, when the determining unit 901 determines that the target timeslot at least includes a first switching point and a second switching point, allocate the target timeslot according to a preset resource allocation policy to obtain a first starting symbol and a first symbol length and a second starting symbol and a second symbol length, where a symbol of the first symbol length from the first starting symbol is an uplink symbol or a downlink symbol in the first switching point, and a symbol of the second symbol length from the second starting symbol is an uplink symbol or a downlink symbol in the second switching point;

a second allocating unit 903, configured to allocate a first time domain resource with a first symbol length from a first starting symbol and a second time domain resource with a second symbol length from a second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel.

In this embodiment, the determining unit 901 determines whether the target timeslot at least includes a first switch point and a second switch point according to the timeslot format information of the target timeslot, if the determining unit 901 determines that the target timeslot at least includes the first switch point and the second switch point, the first allocating unit 902 allocates the target timeslot according to a preset resource allocation policy to obtain a first start symbol and a first symbol length and a second start symbol and a second symbol length, a symbol with the first symbol length from the first start symbol is an uplink symbol or a downlink symbol in the first switch point, a symbol with the second symbol length from the second start symbol is an uplink symbol or a downlink symbol in the second switch point, the second allocating unit 903 allocates a first time domain resource with the first symbol length from the first start symbol and a second time domain resource with the second symbol length from the second start symbol to the physical layer downlink shared channel or the physical layer uplink shared channel, the second allocating unit 903 may allocate the time domain resources corresponding to the two segments of uplink or downlink symbols to an uplink shared channel or a physical downlink shared channel, so as to improve the utilization rate when allocating the timeslot resources.

In this embodiment, the communication base station further includes:

a first determining unit 904 for determining a first index corresponding to the first starting symbol and the first symbol length and the second starting symbol and the second symbol length;

a first sending unit 905, configured to send the first index to the user terminal, so that the user terminal determines, according to a preset first correspondence, a first start symbol and a first symbol length and a second start symbol and a second symbol length corresponding to the first index.

In this embodiment, the communication base station further includes:

a second sending unit 906, configured to send the slot format information of the target slot to the user terminal, so that the user terminal determines a second starting symbol according to the first rule and the slot format information.

In this embodiment, the communication base station further includes:

a second determining unit 907 for determining a second index corresponding to the first start symbol, the first symbol length, and the second symbol length;

a third sending unit 908, configured to send the second index to the user terminal, so that the user terminal determines, according to a preset second correspondence, a first starting symbol, a first symbol length, and a second symbol length corresponding to the second index.

In this embodiment, the communication base station further includes:

a third determining unit 909 for determining a third index corresponding to the first starting symbol and a third symbol length, the third symbol length being equal to the sum of the first symbol length and the second symbol length;

a fourth sending unit 910, configured to send the third index to the user terminal, so that the user terminal determines, according to a preset third correspondence, a first starting symbol and a third symbol length corresponding to the third index.

In this embodiment, the communication base station further includes:

a fifth sending unit 911, configured to send the slot format information of the target slot to the user terminal, so that the user terminal determines the first symbol length, the second start symbol length, and the second symbol length according to the second rule, the first start symbol, the third symbol length, and the slot format information.

Referring to fig. 10, another embodiment of the communication base station in the embodiment of the present application includes:

the communication base station 1000 may have a relatively large difference due to different configurations or performances, and may include one or more Central Processing Units (CPUs) 1001 (e.g., one or more processors) and a memory 1005, where the memory 1005 stores one or more applications or data.

Memory 1005 may be, among other things, volatile or persistent storage. The program stored in the memory 1005 may include one or more modules, each of which may include a series of instructions for the server to operate on. Still further, the central processing unit 1001 may be arranged to communicate with the memory 1005, and to execute a series of instruction operations in the memory 1005 on the server 1000.

The communications base station 1000 may also include one or more power supplies 1002, one or more wired or wireless network interfaces 1003, one or more input-output interfaces 1004, and/or one or more operating systems, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, and so forth.

The process executed by the central processing unit 1001 in the communication base station 1000 in this embodiment is similar to the method process described in the embodiments shown in fig. 4, fig. 6, and fig. 7, and is not repeated herein.

Embodiments of the present application also provide a computer storage medium for storing computer software instructions for the aforementioned server, which includes a program designed for executing the server.

Embodiments of the present application also provide a computer program product, which includes computer software instructions that can be loaded by a processor to implement the method flows in the embodiments shown in fig. 4, fig. 6 and fig. 7.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

start symbol

1. A method for resource allocation, comprising:

2. The method of claim 1, wherein after the communication base station allocates a first time domain resource with a first symbol length from the first starting symbol and a second time domain resource with a second symbol length from the second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel, the method further comprises:

3. The method of claim 1, wherein the preset resource allocation policy comprises a preset first rule, and the first rule is used for the communication base station to determine the second starting symbol according to the slot format information of the target slot;

the method further comprises the following steps:

4. The method of claim 3, wherein after the communication base station allocates a first time domain resource with a first symbol length from the first starting symbol and a second time domain resource with a second symbol length from the second starting symbol to the physical layer downlink shared channel or the physical layer uplink shared channel, the method further comprises:

5. The method of claim 1, wherein after the communication base station allocates a first time domain resource with a first symbol length from the first starting symbol and a second time domain resource with a second symbol length from the second starting symbol to a physical layer downlink shared channel or a physical layer uplink shared channel, the method further comprises:

the communication base station determines a third index corresponding to the first starting symbol and a third symbol length, wherein the third symbol length is the sum of the first symbol length and the second symbol length;

6. The method of claim 5, wherein the preset resource allocation policy comprises a preset second rule, and the second rule is used for the communication base station to determine the first symbol length, the second start symbol length, and the second symbol length according to the slot format information, the first start symbol, and the third symbol length of the target slot;

the method further comprises the following steps:

7. A communication base station, comprising:

8. The communication base station of claim 7, further comprising:

a first sending unit, configured to send the first index to a user terminal, so that the user terminal determines, according to a preset first correspondence, the first start symbol and the first symbol length and the second start symbol and the second symbol length corresponding to the first index.

9. The communication base station of claim 7, further comprising:

10. The communication base station of claim 9, further comprising:

a third sending unit, configured to send the second index to a user terminal, so that the user terminal determines, according to a preset second correspondence, the first start symbol, the first symbol length, and the second symbol length that correspond to the second index.

11. The communication base station of claim 7, further comprising:

a third determining unit, configured to determine a third index corresponding to the first starting symbol and a third symbol length, where the third symbol length is a sum of the first symbol length and the second symbol length;

12. The communication base station of claim 11, further comprising:

a fifth sending unit, configured to send the slot format information of the target slot to a user terminal, so that the user terminal determines the first symbol length, the second start symbol, and the second symbol length according to a second rule, a first start symbol, the third symbol length, and the slot format information.