CN117676814A

CN117676814A - SPS PDSCH transmission method, terminal and network side equipment

Info

Publication number: CN117676814A
Application number: CN202210989147.2A
Authority: CN
Inventors: 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2024-03-08

Abstract

The embodiment of the application discloses a transmission method, a terminal and network side equipment of an SPS PDSCH, which belong to the technical field of communication, and the transmission method of the SPS PDSCH comprises the following steps: the terminal determines the transmission time of SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period; the terminal receives an SPS PDSCH on the transmission occasion.

Description

SPS PDSCH transmission method, terminal and network side equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a transmission method, a terminal and network side equipment of a Semi-persistent scheduling (Semi-Persistent Scheduling, SPS) physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

Background

A terminal may be configured with a semi-persistent downlink resource, i.e., downlink semi-persistent scheduling (DL SPS), in the current 5G system. The DL SPS is configured with periodic downlink resources by network side equipment, and the network side activates or deactivates SPS PDSCH transmission resource usage by physical downlink control channel (Physical Downlink Control Channel, PDCCH) control signaling.

Augmented Reality (XR) refers to a real and virtual combined environment and human-machine interaction generated by computer technology and wearable devices. XR includes representative forms of augmented Reality (Augmented Reality, AR), mixed Reality (MR), virtual Reality (VR), and the like, as well as cross-over fields therebetween.

For data services such as XR, the size of a data packet is usually larger, and a plurality of PDSCH are required to transmit, so that SPS PDSCH transmission resources in the related art cannot be well adapted to the characteristics of the data services, and the transmission performance of data is affected.

Disclosure of Invention

The embodiment of the application provides a transmission method, a terminal and network side equipment of an SPS PDSCH, which can solve the problem that SPS PDSCH transmission resources cannot be well adapted to the characteristics of data service and influence the transmission performance of data.

In a first aspect, a method for transmitting an SPS PDSCH is provided, including: the terminal determines the transmission time of SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period; the terminal receives an SPS PDSCH on the transmission occasion.

In a second aspect, a method for transmitting an SPS PDSCH is provided, including: the method comprises the steps that network side equipment sends first information, wherein the first information is used for configuring or indicating transmission time of an SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period; and the network side equipment transmits the SPS PDSCH according to the transmission opportunity.

In a third aspect, there is provided a transmission apparatus of an SPS PDSCH, including: a determining module, configured to determine a transmission opportunity of an SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period; and a receiving module, configured to receive the SPS PDSCH on the transmission opportunity.

In a fourth aspect, there is provided a transmission apparatus of an SPS PDSCH, including: a transmitting module, configured to transmit first information, where the first information is used to configure or indicate a transmission opportunity of an SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period; the sending module is further configured to send an SPS PDSCH according to the transmission opportunity.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to determine a transmission opportunity of an SPS PDSCH; wherein, there are a plurality of transmission opportunities in one SPS PDSCH period, and the communication interface is configured to receive SPS PDSCH on the transmission opportunities.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

An eighth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to send first information, where the first information is used to configure or indicate a transmission opportunity of an SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period; and sending SPS PDSCH according to the transmission time.

In a ninth aspect, a transmission system of an SPS PDSCH is provided, including: a terminal operable to perform the steps of the method as described in the first aspect, and a network side device operable to perform the steps of the method as described in the second aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions, implementing the steps of the method as described in the first aspect, or implementing the steps of the method as described in the second aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the method as described in the first aspect or to implement the steps of the method as described in the second aspect.

In the embodiment of the application, the terminal determines the transmission time of the SPS PDSCH, a plurality of transmission time exist in one SPS PDSCH period, and the terminal receives the SPS PDSCH on the determined transmission time. Because a plurality of transmission opportunities exist in one SPS PDSCH period, the transmission of business of large data packets such as XR is facilitated, the transmission performance of data is improved, and the throughput of a system is improved.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a transmission method of an SPS PDSCH according to an embodiment of the present application;

fig. 3 is a schematic position diagram of transmission opportunities of an SPS PDSCH according to an embodiment of the present application;

fig. 4 is a schematic position diagram of transmission opportunities of an SPS PDSCH according to an embodiment of the present application;

fig. 5 is a schematic position diagram of transmission opportunities of an SPS PDSCH according to an embodiment of the present application;

Fig. 6 is a schematic flowchart of a transmission method of an SPS PDSCH according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a transmission device of an SPS PDSCH according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a transmission device of an SPS PDSCH according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 10 is a schematic structural view of a terminal according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device may include a base station, a WLAN access point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is described by way of example, and the specific type of the base station is not limited.

The following describes in detail, with reference to the accompanying drawings, the SPS PDSCH transmission method provided by the embodiments of the present application through some embodiments and application scenarios thereof.

As shown in fig. 2, the embodiment of the present application provides a method 200 for transmitting an SPS PDSCH, which may be performed by a terminal, in other words, by software or hardware installed in the terminal, the method including the following steps.

S202: the terminal determines the transmission time of SPS PDSCH; wherein, there are a plurality of transmission opportunities in one SPS PDSCH period.

In this embodiment, the terminal may determine the transmission opportunity of the SPS PDSCH according to the configuration or indication of the network side device.

For example, the terminal determines the transmission opportunity according to the number of transmission opportunities in one SPS PDSCH period (SPS PDSCH period may also be simply referred to as period), and in this example, the network side device may configure the number of transmission opportunities in one period for the terminal through radio resource control (Radio Resource Control, RRC) signaling.

For another example, the terminal determines a transmission opportunity according to the indication of DCI, in this example, a row in a table corresponding to time domain resource allocation (Time Domain Resource Assignment, TDRA) indicated by the DCI includes a plurality of (K0, SLIV, mapping type) combinations, where K0 represents a time (e.g. a time slot or symbol) offset between a physical downlink control channel (Physical Downlink Control Channel, PDCCH) and a PDSCH, and the PDCCH is used for scheduling the PDSCH; SLIV indicates a start and length indicator of PDSCH time domain, and mapping type is a mapping type.

For another example, the terminal determines the transmission opportunity of the SPS PDSCH according to the RRC configuration and the DCI indication, in this example, the network side device may configure the number of transmission opportunities in one SPS PDSCH period for the terminal through RRC signaling, and activate one or more of the transmission opportunities through DCI.

Optionally, among the plurality of transmission occasions, at least two transmission occasions transmit different Transport Blocks (TBs). The multiple transmission opportunities are primarily for transmission of large data packets, and are typically not for repeated transmission of data packets.

S204: the terminal receives an SPS PDSCH on the transmission occasion.

According to the transmission method of the SPS PDSCH, the terminal determines the transmission time of the SPS PDSCH, a plurality of transmission time exist in one SPS PDSCH period, and the terminal receives the SPS PDSCH on the determined transmission time. Because a plurality of transmission opportunities exist in one SPS PDSCH period, the transmission of business of large data packets such as XR is facilitated, the transmission performance of data is improved, and the throughput of a system is improved.

The SPS PDSCH in the embodiment of the application can be used for transmitting XR service data, the data packet of the XR service is usually larger in size, and a plurality of PDSCH are needed for transmission, and the embodiment has a plurality of transmission occasions in one SPS PDSCH period and can be well suitable for the XR service characteristics; in addition, the size of the XR service data packet also has time variability, more downlink transmission resources are needed in some periods, and less downlink resources are needed in some periods. Or in another embodiment, a plurality of transmission occasions can be configured in one SPS PDSCH period, then the number of actually used transmission occasions is determined in each period according to the data amount of the XR service, and the transmission occasions which are not actually needed to be used can be used for other transmission.

The above embodiments describe that there are a plurality of transmission opportunities in one SPS PDSCH period, and how the network side device configures or indicates a plurality of transmission opportunities in one SPS PDSCH period and how the terminal determines the transmission opportunities will be described in a plurality of ways.

Method 1: the network side equipment configures the number of time slots corresponding to an SPS PDSCH period for the terminal through a high-layer signaling, and one time slot can contain one transmission opportunity. The terminal determines the first transmission opportunity in one SPS PDSCH period, and the remaining transmission opportunities are consecutive slots after the first slot or consecutive downlink slots (e.g., if in a slot, the SPS PDSCH overlaps with an uplink symbol, the slot is skipped).

In this embodiment, the positions of the remaining transmission opportunities in the respective time slots after the first transmission opportunity are the same as the positions of the first transmission opportunity in the first time slot. For example, one slot has 12 symbols, the first transmission opportunity occupies the last 6 symbols of the first slot, and the remaining transmission opportunities also occupy the last 6 symbols of the respective slot.

Alternatively, transmission opportunities within different time slots may be used to transmit different TBs here.

Based on the description of method 1, the determining, by the terminal, the transmission opportunity of the SPS PDSCH includes: the terminal determines a first transmission opportunity in an SPS PDSCH period, wherein the rest transmission opportunities in the SPS PDSCH period are positioned: the first transmission time is located in a time slot which is continuous after the time slot; the terminal determines the plurality of transmission opportunities according to the first transmission opportunity.

In this embodiment, the positions of the remaining transmission opportunities in the SPS PDSCH period are the same as the positions of the first transmission opportunity in the slot.

In this embodiment, the method further comprises: the terminal receives configuration information, wherein the configuration information is used for configuring the number of transmission occasions in one SPS PDSCH period.

Method 2: the network side device configures a plurality of offsets for one SPS PDSCH configuration (configuration) through higher layer signaling. The offset represents the number of slots in which the transmission opportunity is offset backward in one period with respect to the starting slot of the period. The terminal determines a plurality of time slots in one SPS PDSCH period according to a plurality of offsets, each offset may determine a time slot, and a position of a transmission opportunity in each time slot may be indicated by DCI (e.g., TDRA).

Based on the description of method 2, the determining, by the terminal, the transmission opportunity of the SPS PDSCH includes: the terminal determines a plurality of time slots in an SPS PDSCH period according to a plurality of offset values configured by network side equipment; and the terminal determines the transmission time in the time slots according to the DCI indication.

Method 3: the DCI indicates a plurality of transmission occasions, i.e., the rows in the table to which the TDRA indicated by the DCI corresponds contain a plurality of (K0, SLIV, mapping type) combinations.

Based on the description of method 3, the determining, by the terminal, the transmission opportunity of the SPS PDSCH includes: the terminal receives DCI, and the terminal determines a plurality of transmission opportunities of SPS PDSCH according to the DCI; wherein the DCI is used to indicate the plurality of transmission opportunities. In this method, a plurality of transmission opportunities within one period may be in one slot or different slots.

Method 4: the network side equipment configures the number x of time slots in one SPS PDSCH period and the number y of transmission occasions in each time slot. The terminal determines a first time slot according to a period and an offset (the period and the offset can be configured or indicated by network side equipment), determines a first transmission opportunity in the time slot according to DCI indication, and determines other transmission opportunities in the time slot according to y, wherein the transmission opportunities can be determined according to a continuous symbol or a continuous downlink symbol or a predefined/indicated symbol interval mapping mode; the position of the transmission opportunity is the same as the first time slot in (x-1) time slots or downstream time slots after the first time slot.

Based on the description of method 4, the determining, by the terminal, the transmission opportunity of the SPS PDSCH includes: the terminal determines a first time slot in an SPS PDSCH period; determining a first transmission opportunity according to the DCI indication in the first time slot; and determining the rest transmission opportunities in the first time slot according to the number y of the transmission opportunities in each time slot, wherein y is a positive integer.

In this embodiment, the position of the transmission opportunity in the (x-1) time slot after the first time slot is the same as the position of the transmission opportunity in the first time slot; wherein x is the number of slots configured in one SPS PDSCH period.

Method 5: the network side equipment configures the number of time slots in one SPS PDSCH period, and the terminal determines the transmission time according to a predefined rule. For example, the terminal determines the first transmission opportunity according to the DCI indication, and the different transmission opportunities are mapped according to continuous symbols or continuous downlink symbols or predefined/indicated symbol intervals, for example, the different transmission opportunities are mapped on continuous symbols, if a certain transmission opportunity overlaps with a semi-static uplink symbol, the transmission opportunity does not transmit the SPS PDSCH or defers the transmission opportunity to the next transmission opportunity until the transmission opportunity capable of transmitting (i.e. the transmission opportunity not overlapping with the semi-static uplink or SSB) reaches the number of transmission opportunities configured by the network side device.

Based on the description of method 4, the determining, by the terminal, the transmission opportunity of the SPS PDSCH includes: and the terminal determines the transmission opportunity of the SPS PDSCH according to a predefined rule and the number of the transmission opportunity in one SPS PDSCH period.

Method 6: the network side device configures the maximum time slot or the number of transmission occasions in one period or period group, before a certain period or period group, the network side device indicates the number of SPS PDSCH time slots/transmission occasions transmitted in one or more periods or period groups through signaling (such as L1 signaling), wherein the period group can be determined through a certain rule or network side device configuration, for example, a plurality of SPS PDSCH have the same period, but SPS PDSCH with different offsets correspond to one period group, and optionally, SPS PDSCH in one period group correspond to the same logic channel priority.

For a certain period/period group, if the terminal does not receive a corresponding signaling indication (e.g., the L1 signaling described above), the actual number of transmission slots/transmission occasions is determined according to one of the following ways: 1) The number of maximum slots or transmission occasions within the period or group of periods configured by RRC; 2) A predefined value, such as 1; 3) The predefined manner determines, for example, the number of time slots or transmission occasions equal to the last period or group of periods.

Based on the description of method 6, before the terminal determines the transmission opportunity of SPS PDSCH, the method further includes: the terminal receives indication information, wherein the indication information is used for indicating the maximum number of the transmission opportunities in one SPS PDSCH period; the method for determining the transmission opportunity of the SPS PDSCH by the terminal comprises the following steps: and the terminal determines the transmission time of the SPS PDSCH according to the indication information.

In this embodiment, the method further comprises: in the case that the indication information is not received, the terminal determines the number of transmission opportunities in one SPS PDSCH period based on at least one of: 1) The maximum number of transmission opportunities within one SPS PDSCH period of the RRC configuration; 2) A predefined value; 3) The number of transmission opportunities within one or more SPS PDSCH periods is determined according to a predefined manner.

The above embodiments mainly describe how the terminal determines the transmission opportunity, and the following describes how the terminal determines the HARQ process ID corresponding to each transmission opportunity in a plurality of embodiments. It can be understood that the technical scheme of determining the transmission opportunity by the terminal and the technical scheme of determining the HARQ process ID by the terminal may be implemented independently or may be implemented in combination.

Optionally, the method of the embodiment shown in fig. 2 further comprises: the terminal determines the HARQ process ID corresponding to the transmission opportunity according to a first parameter, wherein the first parameter comprises at least one of the following: 1) A starting symbol position of the transmission opportunity; 2) The number of transmission opportunities within one SPS PDSCH period; 3) And numbering the transmission occasions.

In one example, the first parameter includes a start symbol position of the transmission opportunity, and the determining, by the terminal, the HARQ process ID corresponding to the transmission opportunity according to the first parameter includes: the terminal determines the HARQ process ID corresponding to the transmission opportunity according to one of the following formulas:

Equation one: HARQ process id= [ floor (current symbol number/SPS PDSCH period) ] number of HARQ processes of module SPS PDSCH resources + HARQ process ID offset.

Formula II: HARQ process id= [ floor (current slot number x 10/(number of slots per system frame x SPS PDSCH period)) + starting symbol index ] number of HARQ processes of the module SPS PDSCH resource + HARQ process ID offset.

In the above two formulas, floor () represents a rounding down of the number in brackets.

The CURRENT symbol number (current_symbol) may be the number of the start symbol of the transmission opportunity, the CURRENT symbol number= (SFN x number of slots per system frame x number of symbols per slot + number of slots in system frame x number of symbols per slot + number of symbols in slot). The SFN is the current system frame number (i.e., the system frame number where the SPS PDSCH transmission opportunity is located).

modulo represents modulo arithmetic; the start symbol index is the number of the start symbol of the transmission opportunity in the time slot.

The current slot number may be the number of the slot in which the transmission opportunity is located.

The HARQ process number (nrofHARQ-process) of the SPS PDSCH resource is a parameter configured by a higher layer, and is used to indicate the number of HARQ Processes that can be used by the SPS PDSCH; the HARQ process ID Offset (HARQ-ProcID-Offset) is also a higher layer configured parameter for indicating the Offset of the HARQ process that the SPS PDSCH can use with respect to a certain process (e.g., process 0).

In one example, the first parameter includes the number of transmission occasions and/or the number of transmission occasions in one SPS PDSCH period, and the determining, by the terminal, the HARQ process ID corresponding to the transmission occasion according to the first parameter includes: the terminal determines the HARQ process identifier ID corresponding to the transmission opportunity according to one of the following formulas:

and (3) a formula III:

equation four:

formula five: HARQ process id= [ floor (current slot number x 10/(number of slots per system frame x SPS PDSCH period)) ] number of HARQ processes of the module SPS PDSCH resource + HARQ process ID offset + m.

Formula six: HARQ process id= [ floor (current slot number x 10/(number of slots per system frame x SPS PDSCH period)) +m ] number of HARQ processes of module SPS PDSCH resources + HARQ process ID offset.

In the above four formulas, floor () represents a rounding down of the number in brackets.

The CURRENT slot number (current_slot) may be the number of the slot in which the transmission opportunity is located.

modulo represents a modulo operation.

N _i Representing the number of transmission opportunities in a time slot i in one SPS PDSCH period; wherein the number of the time slot starts from the first time slot in one period, for example, from 0, or the number of the time slot starts from the time slot where the first transmission opportunity in one period is located, for example, from 0.

k represents the slot number or index of the current slot; wherein the number of the time slot starts from the first time slot in one period, for example, from 0, or the number of the time slot starts from the time slot where the first transmission opportunity in one period is located, for example, from 0.

n represents the number of the current transmission opportunity in one time slot (i.e. the number of the transmission opportunity starts from the first transmission opportunity in the time slot, the transmission opportunities of different time slots are not accumulated), which may be 0,1,2, etc., for example, the number of the first transmission opportunity in the time slot is 0, and then each transmission opportunity is added with 1 in turn.

m represents the number of the current transmission opportunity in one SPS PDSCH period (i.e. the number of transmission opportunities starts from the first transmission opportunity in the period and the transmission opportunities in different slots are accumulated), for example, the first transmission opportunity in the period is numbered 0, and then each transmission opportunity is sequentially incremented by 1.

Optionally, when the transmission opportunity is numbered, if a certain transmission opportunity collides with the UL symbol, the transmission opportunity can be skipped when the transmission opportunity is numbered, and the transmission opportunity is not numbered. In other examples, if a transmission opportunity collides with the UL symbol, the transmission opportunity is not skipped at the time of numbering, and the transmission opportunity is numbered.

It should be noted that, for formulas three to six above, if the SPS PDSCH is configured to repeat, the determination of the HARQ process ID is determined according to the first transmission opportunity of the plurality of transmission opportunities of the repeated transmission, or the repeated PDSCH is regarded as a bundle (bundle) which allocates one transmission opportunity index. In addition, in the above formula one, the unit of the SPS PDSCH period (periodicity) may be a symbol (symbol), and in the formulas two to six, the unit of the SPS PDSCH period (periodicity) may be a millisecond (ms) or a slot.

In the above embodiment, when there are multiple transmission occasions of SPS PDSCH in one period, the terminal may determine the HARQ process ID of each transmission occasion (or called transmission resource), so as to improve the effectiveness of the communication system.

In order to describe the transmission method of the SPS PDSCH provided in the embodiments of the present application in detail, a specific embodiment will be described below.

In the related art, the SPS PDSCH has only one transmission opportunity in one period, and the terminal determines a slot for transmitting the PDSCH through the configured period and slot offset, and determines a time domain symbol position of the PDSCH in the slot according to the TDRA indicated by the activated DCI.

However, XR service usually has a larger data packet and requires multiple PDSCHs to transmit, and in addition, the size of the data packet of XR service usually varies, and the fixed PDSCH resource allocation may cause resource waste or deficiency, so that the above problem can be well solved (for the problem of changing the size of the data packet, it may also be necessary to reclaim the unnecessary SPS PDSCH resources) by configuring multiple SPS PDSCH transmission opportunities in one period.

The base station may configure or indicate that one SPS PDSCH has multiple transmission opportunities in one period by

Method 1: the higher layer configures the number of slots corresponding to the SPS PDSCH, the UE determines the first transmission opportunity of the SPS PDSCH transmission in one period (for example, according to the offset in the period and the indication of activating DCI) according to the existing manner, and the rest of the transmission opportunities are consecutive slots or consecutive DL slots after the first slot (for example, if in a certain slot, the SPS PDSCH overlaps with the UL symbol or SSB, the slot is skipped), and the transmission position in the slot is the same as the first slot.

As shown in fig. 3, the number of slots configured by the base station is 4, see slot n, slot n+1, slot n+2 and slot n+3 in fig. 3, after the terminal determines the first transmission opportunity (located in slot n), the remaining 3 transmission opportunities are located in consecutive slots (i.e. located in slot n+1, slot n+2 and slot n+3 respectively) after the first transmission opportunity slot, if in a certain slot, the PDSCH time domain position collides with the UL symbol (e.g. the position of slot n+1, the position filled with oblique lines in fig. 3 indicates PDSCH that is not transmitted), the PDSCH transmission opportunities in that slot are not transmitted (still calculated in the total slot).

Method 2: the higher layer configures a plurality of offsets for one SPS PDSCH configuration (configuration), the offsets representing the number of slots in which the transmission opportunity is offset backward with respect to the starting slot of the period within one period. The UE determines time slots in the period according to each offset, and the transmission position in each time slot is indicated according to the activated DCI.

As shown in fig. 4, the base station configures 3 offsets, which are 0,2, and 3 respectively, and then the terminal determines that 3 transmission opportunities are respectively in the 1 st, 3 rd, and 4 th time slots in the period, that is, the instant n, the time slot n+1, and the time slot n+2, and determines the time domain position of the PDSCH in each time slot according to the indication of activating DCI. Or the base station configures a list of states, each state corresponding to one to a plurality of offsets, and indicates one state in the list based on the TDRA field or a separate field in the DCI for activation. TO in fig. 4 represents a transmission opportunity.

Method 3: the activation DCI indicates a plurality of PDSCH transmission opportunities, i.e., rows in a table corresponding to the TDRA indicated by the activation DCI are wrapped with a plurality of (K0, SLIV, mapping type) combinations.

Method 4: the base station configures the number of slots x and the number of transmission opportunities y within each slot. The terminal determines the first slot according to the period and the offset, determines the first transmission opportunity in the slot according to the activated DCI, and determines other transmission opportunities in the slot according to m (PDSCH transmission opportunities are determined in a continuous symbol or continuous downlink symbol mapping manner). In n-1 slots/downlink slot after the first slot, PDSCH transmission timing is the same as the first slot. Fig. 5 is a schematic diagram of x=3 and y=2, that is, the number of slots in one period is 3, the number of transmission occasions in each slot is 2, and TO in fig. 5 indicates a transmission occasion.

Method 5: the base station configures the number of SPS PDSCH transmission occasions, the UE determines the transmission occasions according to a predefined rule, for example, the UE determines the first transmission occasion according to the indication of the activated DCI, and different transmission occasions are mapped according to the mode of continuous symbols/continuous DL symbols.

Method 6: the base station configures a period/period group (where the period group is determined by a rule or base station configuration, for example, multiple SPS PDSCH have the same period, but SPS PDSCH with different offsets corresponds to a period group, optionally, SPS PDSCH in a period group corresponds to the same logical channel priority) and before a period/period group, the base station indicates the number of SPS PDSCH slots/transmission occasions to be transmitted in the next period/period group or groups by sending signaling (e.g., L1 signaling).

For a certain period/period group, if the UE does not receive a corresponding signaling indication (e.g., the L1 signaling described above), the actual number of transmission slots/transmission opportunities is determined according to one of the following ways: 1) The maximum number of slots/transmission opportunities within the period/period group configured by RRC; 2) A predefined value, such as 1; 3) The predefined manner is determined, e.g., to be equal to the number of slots/transmission opportunities in the last period/period group.

The transmission method of the SPS PDSCH according to the embodiment of the present application is described in detail above in conjunction with fig. 2. A transmission method of the SPS PDSCH according to another embodiment of the present application will be described in detail below with reference to fig. 6. It will be appreciated that the interaction of the network side device with the terminal described from the network side device is the same as or corresponds to the description of the terminal side in the method shown in fig. 2, and the relevant description is omitted as appropriate to avoid repetition.

Fig. 6 is a schematic flowchart of a transmission method implementation of an SPS PDSCH in the embodiment of the present application, which may be applied to a network device. As shown in fig. 6, the method 600 includes the following steps.

S602: the method comprises the steps that network side equipment sends first information, wherein the first information is used for configuring or indicating transmission time of an SPS PDSCH; wherein, there are a plurality of transmission opportunities in one SPS PDSCH period.

S604: and the network side equipment transmits the SPS PDSCH according to the transmission opportunity.

According to the transmission method of the SPS PDSCH, the network side equipment sends first information, the first information is used for configuring or indicating transmission time of the SPS PDSCH, a plurality of transmission time exist in one SPS PDSCH period, and the network side equipment sends the SPS PDSCH according to the transmission time. Because a plurality of transmission opportunities exist in one SPS PDSCH period, the transmission of business of large data packets such as XR is facilitated, the transmission performance of data is improved, and the throughput of a system is improved.

Optionally, as an embodiment, at least two of the transmission opportunities transmit TBs that are different among the plurality of transmission opportunities.

Optionally, as an embodiment, the first information is used to configure a number of transmission occasions in one SPS PDSCH period.

Optionally, as an embodiment, the first information is used to configure a plurality of offsets in one SPS PDSCH period, where the plurality of offsets is used to determine a plurality of slots in one SPS PDSCH period; the method further comprises the steps of: and the network side equipment transmits DCI, wherein the DCI is used for indicating the transmission opportunity in the plurality of time slots.

Optionally, as an embodiment, the first information includes DCI, where the DCI is used to indicate the plurality of transmission opportunities.

Optionally, as an embodiment, the first information is used to configure at least one of: the number of time slots in one SPS PDSCH period is x, and the number of transmission opportunities in each time slot is y, wherein x and y are positive integers.

Optionally, as an embodiment, the first information is used to configure a maximum number of transmission opportunities in one SPS PDSCH period.

Optionally, as an embodiment, the method further includes: the network side equipment determines an HARQ process ID corresponding to the transmission opportunity according to a first parameter, wherein the first parameter comprises at least one of the following: 1) A starting symbol position of the transmission opportunity; 2) The number of transmission opportunities within one SPS PDSCH period; 3) And numbering the transmission occasions.

Optionally, as an embodiment, the first parameter includes a start symbol position of the transmission opportunity, and the determining, by the network side device, the HARQ process ID corresponding to the transmission opportunity according to the first parameter includes: the network side equipment determines the HARQ process ID corresponding to the transmission opportunity according to one of the following formulas.

Wherein floor () means a rounding down operation on the number in the brackets.

Current symbol number= (SFN x number of slots per system frame x number of symbols per slot + slot number within system frame x number of symbols per slot + symbol number within slot).

SFN is the current system frame number.

modulo represents a modulo operation.

The start symbol index is the number of the start symbol of the transmission opportunity in the time slot.

Optionally, as an embodiment, the first parameter includes the number of transmission occasions and/or the number of transmission occasions in one SPS PDSCH period, and the determining, by the network side device, the HARQ process ID corresponding to the transmission occasion according to the first parameter includes: the network side equipment determines the HARQ process identification ID corresponding to the transmission opportunity according to one of the following formulas.

And (3) a formula III:

equation four:

Wherein floor () means a rounding down operation on the number in the brackets.

N _i The number of transmission occasions in slot i in one SPS PDSCH period is indicated.

k denotes the slot number or index of the current slot.

n denotes the number of the current transmission occasion in one slot.

m denotes the number of the current transmission opportunity within one SPS PDSCH period.

According to the transmission method of the SPS PDSCH, the execution body can be a transmission device of the SPS PDSCH. In the embodiment of the present application, the SPS PDSCH transmission device is described by taking an SPS PDSCH transmission method performed by the SPS PDSCH transmission device as an example.

Fig. 7 is a schematic structural diagram of a transmission apparatus of an SPS PDSCH according to an embodiment of the present application, which may correspond to a terminal in other embodiments. As shown in fig. 7, the apparatus 700 includes the following modules.

A determining module 702, configured to determine a transmission opportunity of an SPS PDSCH; wherein, there are a plurality of transmission opportunities in one SPS PDSCH period.

A receiving module 704, configured to receive an SPS PDSCH on the transmission opportunity.

In the embodiment of the application, the determining module determines the transmission time of the SPS PDSCH, a plurality of transmission time exists in one SPS PDSCH period, and the receiving module receives the SPS PDSCH on the determined transmission time. Because a plurality of transmission opportunities exist in one SPS PDSCH period, the transmission of business of large data packets such as XR is facilitated, the transmission performance of data is improved, and the throughput of a system is improved.

Optionally, as an embodiment, the determining module 702 is configured to determine a first transmission opportunity in an SPS PDSCH period, where remaining transmission opportunities in the SPS PDSCH period are located: the first transmission time is located in a time slot which is continuous after the time slot; and determining the transmission opportunities according to the first transmission opportunity.

Optionally, as an embodiment, a position of the rest of transmission occasions in the SPS PDSCH period in the time slot is the same as a position of the first transmission occasion in the time slot.

Optionally, as an embodiment, the receiving module 704 is further configured to receive configuration information, where the configuration information is used to configure the number of transmission occasions in one SPS PDSCH period.

Optionally, as an embodiment, the determining module 702 is configured to determine a plurality of slots in one SPS PDSCH period according to a plurality of offsets configured by a network device; and determining the transmission opportunity in the plurality of time slots according to the DCI indication.

Optionally, as an embodiment, the determining module 702 is configured to determine a plurality of transmission opportunities of the SPS PDSCH according to DCI; wherein the DCI is used to indicate the plurality of transmission opportunities.

Optionally, as an embodiment, the determining module 702 is configured to determine a first time slot in an SPS PDSCH period; determining a first transmission opportunity according to the DCI indication in the first time slot; and determining the rest transmission opportunities in the first time slot according to the number y of the transmission opportunities in each time slot, wherein y is a positive integer.

Optionally, as an embodiment, a position of a transmission opportunity in x-1 slots after the first slot is the same as a position of a transmission opportunity in the first slot; wherein x is the number of time slots configured in one SPS PDSCH period, and x is a positive integer.

Optionally, as an embodiment, the determining module 702 is configured to determine the transmission opportunity of the SPS PDSCH according to a predefined rule and the number of transmission opportunities in one SPS PDSCH period.

Optionally, as an embodiment, the receiving module 704 is further configured to receive indication information, where the indication information is used to indicate a maximum number of the transmission occasions in one SPS PDSCH period; the determining module 702 is configured to determine a transmission opportunity of the SPS PDSCH according to the indication information.

Optionally, as an embodiment, the determining module 702 is further configured to determine, in a case where the indication information is not received, the number of transmission occasions in one SPS PDSCH period based on at least one of: 1) The maximum number of transmission opportunities within one SPS PDSCH period of the RRC configuration; 2) A predefined value; 3) The number of transmission opportunities within one or more SPS PDSCH periods is determined according to a predefined manner.

Optionally, as an embodiment, the determining module 702 is further configured to determine the HARQ process ID corresponding to the transmission opportunity according to a first parameter, where the first parameter includes at least one of: 1) A starting symbol position of the transmission opportunity; 2) The number of transmission opportunities within one SPS PDSCH period; 3) And numbering the transmission occasions.

Optionally, as an embodiment, the first parameter includes a start symbol position of the transmission opportunity, and the determining module 702 is configured to determine the HARQ process ID corresponding to the transmission opportunity according to one of the following formulas.

Wherein floor () means a rounding down operation on the number in the brackets.

SFN is the current system frame number.

modulo represents a modulo operation.

Optionally, as an embodiment, the first parameter includes the number of transmission occasions and/or the number of transmission occasions in one SPS PDSCH period, and the determining module 702 is configured to determine the HARQ process identifier ID corresponding to the transmission occasion according to one of the following formulas.

And (3) a formula III:

equation four:

Wherein floor () means a rounding down operation on the number in the brackets.

modulo represents a modulo operation.

k denotes the slot number or index of the current slot.

n denotes the number of the current transmission occasion in one slot.

The apparatus 700 according to the embodiment of the present application may refer to the flow of the method 200 corresponding to the embodiment of the present application, and each unit/module in the apparatus 700 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 200, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The SPS PDSCH transmission apparatus in the embodiments of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

Fig. 8 is a schematic structural diagram of a transmission apparatus of an SPS PDSCH according to an embodiment of the present application, which may correspond to the network side device in other embodiments. As shown in fig. 8, the apparatus 800 includes the following modules.

A transmitting module 802, configured to transmit first information, where the first information is used to configure or indicate a transmission opportunity of an SPS PDSCH; wherein, there are a plurality of transmission opportunities in one SPS PDSCH period.

The sending module 802 is further configured to send an SPS PDSCH according to the transmission opportunity.

Optionally, the apparatus 800 further comprises a processing module.

In this embodiment of the present application, the transmitting module transmits first information, where the first information is used to configure or indicate a transmission opportunity of an SPS PDSCH, and a plurality of transmission opportunities exist in one SPS PDSCH period, and the transmitting module transmits the SPS PDSCH according to the transmission opportunities. Because a plurality of transmission opportunities exist in one SPS PDSCH period, the transmission of business of large data packets such as XR is facilitated, the transmission performance of data is improved, and the throughput of a system is improved.

Optionally, as an embodiment, the first information is used to configure a plurality of offsets in one SPS PDSCH period, where the plurality of offsets is used to determine a plurality of slots in one SPS PDSCH period; the sending module 802 is further configured to send DCI, where the DCI is used to indicate the transmission opportunities in the plurality of slots.

Optionally, as an embodiment, the apparatus further includes a determining module, configured to determine, according to a first parameter, an HARQ process ID corresponding to the transmission opportunity, where the first parameter includes at least one of: 1) A starting symbol position of the transmission opportunity; 2) The number of transmission opportunities within one SPS PDSCH period; 3) And numbering the transmission occasions.

Optionally, as an embodiment, the first parameter includes a start symbol position of the transmission opportunity, and the determining module is configured to determine the HARQ process ID corresponding to the transmission opportunity according to one of the following formulas.

Wherein floor () means a rounding down operation on the number in the brackets.

SFN is the current system frame number.

modulo represents a modulo operation.

Optionally, as an embodiment, the first parameter includes the number of transmission occasions and/or the number of transmission occasions in one SPS PDSCH period, and the determining module is configured to determine the HARQ process identifier ID corresponding to the transmission occasion according to one of the following formulas.

And (3) a formula III:

equation four:

the number of the current transmission opportunity in one SPS PDSCH period is calculated, and the function of the number is equal to m in the following formula six.

Wherein floor () means a rounding down operation on the number in the brackets.

modulo represents a modulo operation.

N _i The number of transmission occasions in a slot i (where the number of slots starts from the first slot in a period, for example, from 0, or the number of slots starts from the slot where the first transmission occasion in a period is located, for example, from 0) in one SPS PDSCH period is indicated.

k denotes a slot number/index of the current slot (where the number of the slot starts from the first slot in one period, e.g. from 0, or the number of the slot starts from the slot where the first transmission occasion in one period is located, e.g. from 0).

n represents the number of the current transmission occasion in a time slot, for example, the first transmission occasion in the time slot is numbered 0, and then each transmission occasion is sequentially added with 1.

m represents the number of the current transmission opportunity in one SPS PDSCH period, e.g., the first transmission opportunity number in the period is 0, and then each transmission opportunity is incremented by 1 in turn.

Optionally, when the transmission opportunity is numbered, if a certain transmission opportunity collides with the UL symbol, the transmission opportunity can be skipped when the transmission opportunity is numbered, and the transmission opportunity is not numbered.

The apparatus 800 according to the embodiment of the present application may refer to the flow of the method 600 corresponding to the embodiment of the present application, and each unit/module in the apparatus 800 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 600, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The SPS PDSCH transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 2 to fig. 6, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Optionally, as shown in fig. 9, the embodiment of the present application further provides a communication device 900, including a processor 901 and a memory 902, where a program or an instruction that can be executed on the processor 901 is stored in the memory 902, for example, when the communication device 900 is a terminal, the program or the instruction is executed by the processor 901 to implement each step of the foregoing embodiment of the transmission method of the SPS PDSCH, and the same technical effects can be achieved. When the communication device 900 is a network side device, the program or the instruction, when executed by the processor 901, implements the steps of the above-described embodiment of the SPS PDSCH transmission method, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining the transmission time of the SPS PDSCH; wherein, there are a plurality of transmission opportunities in one SPS PDSCH period, and the communication interface is configured to receive the SPS PDSCH on the transmission opportunities. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 10 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1000 includes, but is not limited to: at least some of the components of the radio frequency unit 1001, the network module 1002, the audio output unit 1003, the input unit 1004, the sensor 1005, the display unit 1006, the user input unit 1007, the interface unit 1008, the memory 1009, and the processor 1010, etc.

Those skilled in the art will appreciate that terminal 1000 can also include a power source (e.g., a battery) for powering the various components, which can be logically connected to processor 1010 by a power management system so as to perform functions such as managing charge, discharge, and power consumption by the power management system. The terminal structure shown in fig. 10 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 can include two portions, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from the network side device, the radio frequency unit 1001 may transmit the downlink data to the processor 1010 for processing; in addition, the radio frequency unit 1001 may send uplink data to the network side device. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1009 may include volatile memory or nonvolatile memory, or the memory 1009 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 1009 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

Wherein, the radio frequency unit 1001 may be configured to receive an SPS PDSCH on a transmission occasion; a processor 1010 operable to determine a transmission opportunity for an SPS PDSCH; wherein, there are a plurality of transmission opportunities in one SPS PDSCH period.

The terminal 1000 provided in this embodiment of the present application may further implement each process of the foregoing SPS PDSCH transmission method embodiment, and may achieve the same technical effect, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending first information, and the first information is used for configuring or indicating the transmission time of the SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period; and sending SPS PDSCH according to the transmission time. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 11, the network side device 1100 includes: an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114 and a memory 115. The antenna 111 is connected to a radio frequency device 112. In the uplink direction, the radio frequency device 112 receives information via the antenna 111, and transmits the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes information to be transmitted, and transmits the processed information to the radio frequency device 112, and the radio frequency device 112 processes the received information and transmits the processed information through the antenna 111.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 113, where the baseband apparatus 113 includes a baseband processor.

The baseband apparatus 113 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 11, where one chip, for example, a baseband processor, is connected to the memory 115 through a bus interface, so as to call a program in the memory 115 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 116, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1100 of the embodiment of the present invention further includes: instructions or programs stored in the memory 115 and capable of running on the processor 114, the processor 114 invokes the instructions or programs in the memory 115 to perform the method performed by the modules shown in fig. 8, and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the foregoing SPS PDSCH transmission method embodiment are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is configured to run a program or an instruction, implement each process of the above-mentioned SPS PDSCH transmission method embodiment, and achieve the same technical effect, so that repetition is avoided, and no further description is provided here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the foregoing SPS PDSCH transmission method embodiment, and achieve the same technical effects, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a transmission system of the SPS PDSCH, which comprises: a terminal operable to perform the steps of the SPS PDSCH transmission method as described above, and a network side device operable to perform the steps of the SPS PDSCH transmission method as described above.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. The transmission method of the SPS physical downlink shared channel PDSCH is characterized by comprising the following steps:

the terminal determines the transmission time of SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period;

the terminal receives an SPS PDSCH on the transmission occasion.

2. The method of claim 1, wherein at least two of the transmission occasions transmit different transport blocks TBs.

3. The method of claim 1, wherein the terminal determining a transmission opportunity for an SPS PDSCH comprises:

the terminal determines a first transmission opportunity in an SPS PDSCH period, wherein the rest transmission opportunities in the SPS PDSCH period are positioned: the first transmission time is located in a time slot which is continuous after the time slot;

The terminal determines the plurality of transmission opportunities according to the first transmission opportunity.

4. The method of claim 3, wherein the step of,

the positions of the rest transmission opportunities in the SPS PDSCH period in the time slot are the same as the positions of the first transmission opportunity in the time slot.

5. The method according to claim 1, wherein the method further comprises:

the terminal receives configuration information, wherein the configuration information is used for configuring the number of transmission occasions in one SPS PDSCH period.

6. The method of claim 1, wherein the terminal determining a transmission opportunity for an SPS PDSCH comprises:

the terminal determines a plurality of time slots in an SPS PDSCH period according to a plurality of offset values configured by network side equipment;

and the terminal determines the transmission time in the time slots according to the indication of downlink control information DCI.

7. The method of claim 1, wherein the terminal determining a transmission opportunity for an SPS PDSCH comprises:

the terminal receives DCI, and the terminal determines a plurality of transmission opportunities of SPS PDSCH according to the DCI; wherein the DCI is used to indicate the plurality of transmission opportunities.

8. The method of claim 1, wherein the terminal determining a transmission opportunity for an SPS PDSCH comprises:

the terminal determines a first time slot in an SPS PDSCH period;

determining a first transmission opportunity according to the DCI indication in the first time slot;

and determining the rest transmission opportunities in the first time slot according to the number y of the transmission opportunities in each time slot, wherein y is a positive integer.

9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,

the position of the transmission opportunity in the x-1 time slots after the first time slot in the time slot is the same as the position of the transmission opportunity in the first time slot; wherein x is the number of time slots configured in one SPS PDSCH period, and x is a positive integer.

10. The method of claim 1, wherein the terminal determining a transmission opportunity for an SPS PDSCH comprises:

and the terminal determines the transmission opportunity of the SPS PDSCH according to a predefined rule and the number of the transmission opportunity in one SPS PDSCH period.

11. The method of claim 1, wherein prior to the terminal determining a transmission opportunity for an SPS PDSCH, the method further comprises:

The terminal receives indication information, wherein the indication information is used for indicating the maximum number of the transmission opportunities in one SPS PDSCH period;

the method for determining the transmission opportunity of the SPS PDSCH by the terminal comprises the following steps: and the terminal determines the transmission time of the SPS PDSCH according to the indication information.

12. The method of claim 11, wherein the method further comprises:

in the case that the indication information is not received, the terminal determines the number of transmission opportunities in one SPS PDSCH period based on at least one of:

a maximum number of the transmission opportunities within one SPS PDSCH period of the radio resource control RRC configuration;

a predefined value;

the number of transmission opportunities within one or more SPS PDSCH periods is determined according to a predefined manner.

13. The method according to any one of claims 1 to 12, further comprising: the terminal determines the HARQ process ID corresponding to the transmission opportunity according to a first parameter, wherein the first parameter comprises at least one of the following:

a starting symbol position of the transmission opportunity;

the number of transmission opportunities within one SPS PDSCH period;

and numbering the transmission occasions.

14. The method of claim 13, wherein the first parameter comprises a starting symbol position of the transmission opportunity, and wherein the determining, by the terminal, the HARQ process ID corresponding to the transmission opportunity according to the first parameter comprises: the terminal determines the HARQ process ID corresponding to the transmission opportunity according to one of the following formulas:

HARQ process id= [ floor (current symbol number/SPS PDSCH period) ] number of HARQ processes of module SPS PDSCH resources + HARQ process ID offset;

HARQ process id= [ floor (current slot number x 10/(number of slots per system frame x SPS PDSCH period)) + starting symbol index ] number of HARQ processes of module SPS PDSCH resources + HARQ process ID offset;

wherein floor () means performing a downward rounding operation on the number in the bracket;

current symbol number= (SFN x number of slots per system frame x number of symbols per slot + slot number in system frame x number of symbols per slot + symbol number in slot);

SFN is the current system frame number;

modulo represents modulo arithmetic;

15. The method according to claim 13, wherein the first parameter includes the number of transmission occasions and/or the number of transmission occasions in one SPS PDSCH period, and the determining, by the terminal, the HARQ process ID corresponding to the transmission occasion according to the first parameter includes: the terminal determines the HARQ process identifier ID corresponding to the transmission opportunity according to one of the following formulas:

HARQ process id= [ floor (current slot number x 10/(number of slots per system frame x SPS PDSCH period)) ] number of HARQ processes of the module SPS PDSCH resource + HARQ process ID offset + m;

HARQ process id= [ floor (current slot number x 10/(number of slots per system frame x SPS PDSCH period))+m ] number of HARQ processes of module SPS PDSCH resources+harq process ID offset;

modulo represents modulo arithmetic;

N _i representing the number of transmission opportunities in a time slot i in one SPS PDSCH period;

k represents the slot number or index of the current slot;

n represents the number of the current transmission opportunity in one time slot;

16. A method for transmitting an SPS PDSCH, comprising:

the method comprises the steps that network side equipment sends first information, wherein the first information is used for configuring or indicating transmission time of an SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period;

and the network side equipment transmits the SPS PDSCH according to the transmission opportunity.

17. The method of claim 16, wherein at least two of the transmission occasions are different TBs transmitted.

18. The method of claim 16, wherein the first information is used to configure a number of transmission occasions within one SPS PDSCH period.

19. The method of claim 16, wherein the first information is used to configure a plurality of offsets within one SPS PDSCH period, the plurality of offsets being used to determine a plurality of slots within one SPS PDSCH period;

the method further comprises the steps of: and the network side equipment transmits DCI, wherein the DCI is used for indicating the transmission opportunity in the plurality of time slots.

20. The method of claim 16, wherein the first information comprises DCI indicating the plurality of transmission occasions.

21. The method of claim 16, wherein the first information is used to configure at least one of:

the number of time slots in one SPS PDSCH period is x, and the number of transmission opportunities in each time slot is y, wherein x and y are positive integers.

22. The method of claim 16, wherein the first information is used to configure a maximum number of transmission opportunities within one SPS PDSCH period.

23. The method according to any one of claims 16 to 22, further comprising: the network side equipment determines an HARQ process ID corresponding to the transmission opportunity according to a first parameter, wherein the first parameter comprises at least one of the following:

A starting symbol position of the transmission opportunity;

the number of transmission opportunities within one SPS PDSCH period;

and numbering the transmission occasions.

24. The method of claim 23, wherein the first parameter includes a start symbol position of the transmission opportunity, and wherein the network side device determining, according to the first parameter, the HARQ process ID corresponding to the transmission opportunity includes: the network side equipment determines the HARQ process ID corresponding to the transmission opportunity according to one of the following formulas:

SFN is the current system frame number;

modulo represents modulo arithmetic;

25. The method of claim 23, wherein the first parameter includes a number of the transmission occasions and/or a number of the transmission occasions in one SPS PDSCH period, and the network side device determining, according to the first parameter, the HARQ process ID corresponding to the transmission occasion includes: the network side equipment determines the HARQ process identifier ID corresponding to the transmission opportunity according to one of the following formulas:

modulo represents modulo arithmetic;

k represents the slot number or index of the current slot;

26. A transmission apparatus for SPS PDSCH, comprising:

a determining module, configured to determine a transmission opportunity of an SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period;

and a receiving module, configured to receive the SPS PDSCH on the transmission opportunity.

27. The apparatus of claim 26, wherein at least two of the transmission occasions of the plurality of transmission occasions transmit different TBs.

28. The apparatus of claim 26 or 27, wherein the determining module is further configured to determine the HARQ process ID corresponding to the transmission opportunity according to a first parameter, where the first parameter includes at least one of:

a starting symbol position of the transmission opportunity;

the number of transmission opportunities within one SPS PDSCH period;

and numbering the transmission occasions.

29. A transmission apparatus for SPS PDSCH, comprising:

a transmitting module, configured to transmit first information, where the first information is used to configure or indicate a transmission opportunity of an SPS PDSCH; wherein, a plurality of transmission opportunities exist in one SPS PDSCH period;

The sending module is further configured to send an SPS PDSCH according to the transmission opportunity.

30. The apparatus of claim 29, wherein at least two of the transmission occasions of the plurality of transmission occasions transmit different TBs.

31. The apparatus according to claim 29 or 30, further comprising a determining module configured to determine the HARQ process ID corresponding to the transmission occasion according to a first parameter, where the first parameter includes at least one of:

a starting symbol position of the transmission opportunity;

the number of transmission opportunities within one SPS PDSCH period;

and numbering the transmission occasions.

32. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method of any one of claims 1 to 15.

33. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method of any of claims 16 to 25.

34. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any of claims 1 to 15 or the steps of the method according to any of claims 16 to 25.