CN110971385B

CN110971385B - Method, device, equipment and storage medium for indicating occupation

Info

Publication number: CN110971385B
Application number: CN201911158159.5A
Authority: CN
Inventors: 赵思聪; 王化磊; 张萌
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2022-10-28
Anticipated expiration: 2039-11-22
Also published as: CN110971385A

Abstract

The embodiment of the application provides a method, a device, equipment and a storage medium for indicating occupation, wherein the method comprises the following steps: and periodically monitoring an occupation indication, and when the occupation indication is detected, determining whether data received by the first N time slots of a first time slot is occupied by other data or not according to the occupation indication, wherein the first time slot is the time slot receiving the occupation indication, and N is a positive integer greater than or equal to 1. Therefore, the energy consumption of the receiving equipment can be reduced, the size of the downlink control information can be reduced, the coverage can be enhanced, and the performance of the false alarm indication can be improved.

Description

Method, device, equipment and storage medium for indicating occupation

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for indicating occupancy.

Background

Currently, new application scenarios that need to be introduced in the 5 th generation mobile communication system include a lightweight New radio-Light (NR-Light) service scenario, and the number of transceiving antennas of devices in such a service scenario, i.e., NR-Light devices, can be reduced to 1, so that the coverage area is reduced, and in order to recover the coverage area, a data retransmission (retransmission) technique is adopted in the NR-Light technique, and the purpose of enhancing the coverage area is achieved by repeatedly transmitting the same data. Due to the difference between the reliability requirement and the delay requirement of the data, this may cause the data to preempt the resource, for example: the sending device repeatedly sends data 1, and then, data 2 with high requirements on reliability and time delay cannot be transmitted until the data 1 is sent completely, so that the sending device can only transmit the data 2 in a punching transmission mode on the completed data 1, if the receiving device does not know which data 1 are punched, when the data sent by the sending device are received, the data are cached for soft combination, and because the cached data comprise the data 2, even a plurality of retransmission receiving devices cannot correctly decode the data 1 sent by the sending device.

In the related art, other application scenarios defined in the 5 th generation mobile communication system are, for example: enhanced mobile broadband (eMBB) and ultra-high-reliability and low-latency communication (URLLC) notify a certain part of receiving equipment of the existence of preemption by adopting a method of sending an occupancy indication (PI). The PI is carried by dedicated Downlink Control Information (DCI), one DCI includes at most 9 PIs, each PI corresponds to different serving cells of different UEs, the DCI is periodically transmitted, and the period may be configured to 1 or 2 or 4 slots.

However, when the maximum period of the current PI is 4 slots and DCI is monitored every 4 slots, power consumption of the receiving device is fast.

Disclosure of Invention

The application provides a method, a device, equipment and a storage medium for indicating occupation, which aim to solve the problem that in the prior art, when receiving an occupation indication, receiving equipment consumes electricity quickly.

In a first aspect, an embodiment of the present application provides a method for indicating occupancy, including:

periodically monitoring for occupancy indications;

when the occupation indication is detected, determining whether data received by the first N time slots of a first time slot is occupied by other data or not according to the occupation indication, wherein the first time slot is the time slot receiving the occupation indication, and N is a positive integer greater than or equal to 1.

In one possible implementation, the periodically monitoring for occupancy indications includes:

periodically monitoring a sequence or downlink control information;

and acquiring the occupation indication carried in the sequence or the downlink control information.

In a possible implementation, when the sequence carries the occupation indication, or when the downlink control information carries the occupation indication and the occupation indication occupies 1 bit in the downlink control information, the determining, according to the occupation indication, whether data received in the first N time slots of the first time slot is occupied by other data includes:

when the occupation indication is 1, determining that the data received by the first N time slots are occupied by other data;

alternatively, the first and second electrodes may be,

and when the occupation indication is 0, determining that the data received by the first N time slots are not occupied by other data.

In one possible implementation, when the sequence or the downlink control information is not received, the method further includes:

determining that data received in the first N time slots is occupied by other data;

alternatively, the first and second electrodes may be,

determining that the data received in the first N time slots is not occupied by other data.

In one possible implementation, when it is determined that the data received in the first N time slots is occupied by other data, the method further includes:

and discarding the data received by the first N time slots.

In a possible implementation, the carrying the occupation indication in the downlink control information, and the occupation indication taking a timeslot as a basic unit of indication, where when the occupation indication occupies M bits in the downlink control information, the determining, according to the occupation indication, whether data received in the first N timeslots of the first timeslot is occupied by other data includes:

when N is equal to M, determining whether the data received by the first N time slots are occupied by other data according to M bits in the occupation indication;

alternatively, the first and second electrodes may be,

when N is smaller than M, determining whether the data received by the first N time slots are occupied by other data according to the first N bits in the occupation indication;

alternatively, the first and second electrodes may be,

and when N is greater than M, grouping the first N time slots to obtain M groups, and determining whether the data received by the M groups is occupied by other data or not according to M bits in the occupation indication, wherein M is a positive integer greater than 1.

In one possible implementation, when N is greater than M, grouping the first N slots to obtain M packets includes:

grouping the first N time slots to be front

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

In a possible implementation, when the downlink control information carries the occupation indication and the occupation indication uses a symbol as a basic unit of indication, the occupation indication is 2-level bitmap, which includes a first-level bitmap and a second-level bitmap;

the first-level bit mapping is set as a P bit to indicate an occupied information set of data sent by resources on each time slot in a reference downlink resource range and occupied by other data, and P is a positive integer greater than 1;

and the second-level bit is set to be N bits to indicate whether the data transmitted by each time slot in the reference downlink resource range is occupied by other data.

In one possible implementation, the first level bit map and the second level bit map are two separate fields in the downlink control information;

alternatively, the first and second electrodes may be,

the first level bit map and the second level bit map are different bits in the same domain in the downlink control information.

In a possible implementation, when a bit in the first-stage bitmap is indicated as 1, it is determined that data transmitted on a resource corresponding to the bit indicated as 1 in each slot is occupied by the other data.

In a second aspect, an embodiment of the present application provides a method for indicating occupancy, including:

determining whether data sent by the first N time slots of a first time slot is occupied by other data, wherein the first time slot is a time slot for sending the occupation indication;

and when determining that the data sent by the first N time slots are occupied by other data, generating an occupation indication according to the occupation situation, and sending the occupation indication to receiving equipment, wherein N is a positive integer greater than or equal to 1.

In one possible implementation, the sending the occupation indication to a receiving device includes:

sending the occupation indication bearer to a receiving device in a sequence;

alternatively, the first and second electrodes may be,

and the occupation indication is carried in the downlink control information and is sent to the receiving equipment.

In a possible implementation, when the occupation indication is carried in the sequence or when the occupation indication is carried in the downlink control information and the occupation indication occupies 1 bit in the downlink control information, the generating the occupation indication according to the occupation situation includes:

if it is determined that data sent by at least one time slot in the first N time slots is occupied by other data, setting the occupation indication to be 1;

alternatively, the first and second electrodes may be,

and if the data sent by the first N time slots are determined not to be occupied by other data, setting the occupation indication to be 0.

In a possible implementation, when the occupation indication is carried in the downlink control information and the occupation indication takes a timeslot as a basic unit of indication, and the occupation indication occupies M bits in the downlink control information, the generating the occupation indication according to an occupation situation includes:

when N is equal to M, respectively determining whether the data sent by each time slot in the first N time slots is occupied by other data so as to set the numerical value of each bit in the occupation indication;

alternatively, the first and second electrodes may be,

when N is smaller than M, respectively determining whether the data sent by each time slot in the first N time slots is occupied by other data so as to set the value of each bit in the first N bits in the occupation indication;

alternatively, the first and second electrodes may be,

and when N is greater than M, grouping the first N time slots of the first time slot to obtain M groups, and setting the numerical value of each bit in the occupation indication according to whether the data sent by the M groups are occupied by other data, wherein M is a positive integer greater than 1.

In one possible implementation, the grouping the first N slots of the first slot to obtain M packets when N is greater than M includes:

grouping the first N time slots to be front

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

In one possible implementation, when the occupation indication is carried in the downlink control information, and the occupation indication takes a symbol as an indicated basic unit, the method further includes:

setting the occupation indication to be 2-level bit mapping, including a first-level bit mapping and a second-level bit mapping;

and the second-level bit is set to be N bits to indicate whether the data transmitted by each time slot in the reference downlink resource range is occupied by other data or not.

alternatively, the first and second electrodes may be,

In a possible implementation, the generating an occupation indication according to an occupation situation when it is determined that data sent by the first N timeslots is occupied by other data includes:

aiming at the resource in each time slot in the first N time slots, generating an occupation information set according to the condition that the data sent by the resource is occupied by other data so as to set the numerical value of each bit in the first-level bit mapping;

and setting the value of each bit in the second-level bit map according to the condition that whether the data sent by the time slot is occupied by other data or not aiming at each time slot in the first N time slots.

In a possible implementation, the generating an occupation information set according to a situation that the data sent by the resource is occupied by other data includes:

generating occupation information of P bits corresponding to the time slot according to the condition that the data sent by the resource is occupied by other data;

and carrying out logic OR operation on the occupation information of N P bits corresponding to the first N time slots to generate the occupation information set of the P bits.

In a third aspect, an embodiment of the present application provides an apparatus for indicating occupancy, including:

a monitoring module for periodically monitoring the occupancy indication;

and a determining module, configured to determine, when the occupation indication is detected, whether data received in first N timeslots of a first timeslot is occupied by other data according to the occupation indication, where the first timeslot is the timeslot in which the occupation indication is received, and N is a positive integer greater than or equal to 1.

In one possible implementation, the monitoring module is specifically configured to:

periodically monitoring a sequence or downlink control information;

In a possible implementation, when the sequence carries the occupation indication, or when the downlink control information carries the occupation indication and the occupation indication occupies 1 bit in the downlink control information, the determining module is specifically configured to:

alternatively, the first and second electrodes may be,

In a possible implementation, when the sequence or the downlink control information is not received, the determining module is further configured to:

determining that the data received in the first N time slots is occupied by other data;

alternatively, the first and second electrodes may be,

In one possible implementation, when the determining module determines that the data received in the first N time slots is occupied by other data, the apparatus further includes:

and the discarding module is used for discarding the data received by the first N time slots.

In a possible implementation, the occupation indication is carried in the downlink control information, and the occupation indication takes a timeslot as a basic unit of indication, and when the occupation indication occupies M bits in the downlink control information, the determining module is specifically configured to:

alternatively, the first and second electrodes may be,

alternatively, the first and second liquid crystal display panels may be,

In a possible implementation, when N is greater than M, the determining module is specifically configured to:

grouping the first N time slots to be front

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

In a possible implementation, when the downlink control information carries the occupation indication and the occupation indication uses a symbol as an indicated basic unit, the occupation indication is 2-level bitmap, and includes a first-level bitmap and a second-level bitmap;

alternatively, the first and second liquid crystal display panels may be,

In a fourth aspect, an embodiment of the present application provides an apparatus for indicating occupancy, including:

a determining module, configured to determine whether data sent by first N timeslots of a first timeslot is occupied by other data, where the first timeslot is a timeslot for sending the occupation indication;

and the processing module is used for generating an occupation indication according to the occupation situation when the data sent by the first N time slots are determined to be occupied by other data, the sending module is used for sending the occupation indication to the receiving equipment, and N is a positive integer greater than or equal to 1.

In one possible implementation, the sending module is specifically configured to:

sending the occupation indication bearer to a receiving device in a sequence;

alternatively, the first and second electrodes may be,

In a possible implementation, when the occupation indication is carried in the sequence or when the occupation indication is carried in the downlink control information and the occupation indication occupies 1 bit in the downlink control information, the processing module is specifically configured to:

alternatively, the first and second electrodes may be,

In a possible implementation, when the occupation indication is carried in the downlink control information, and the occupation indication takes a timeslot as a basic unit of indication, and the occupation indication occupies M bits in the downlink control information, the processing module is specifically configured to:

alternatively, the first and second liquid crystal display panels may be,

alternatively, the first and second electrodes may be,

In one possible implementation, when N is greater than M, the processing module is specifically configured to:

grouping the first N time slots to be front

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

In a possible implementation, when the occupation indication is carried in the downlink control information, and the occupation indication takes a symbol as an indicated basic unit, the processing module is further configured to:

setting the occupation indication as a 2-level bit map, including a first-level bit map and a second-level bit map;

alternatively, the first and second electrodes may be,

In a possible implementation, when the processing module determines that the data sent in the first N time slots is occupied by other data, the processing module is specifically configured to:

In one possible implementation, the processing module is specifically configured to:

In a fifth aspect, an embodiment of the present application provides a receiving device, including: the device comprises a memory and a processor, wherein the memory stores executable instructions of the processor; wherein the processor is configured to perform the method of the first aspect via execution of the executable instructions.

In a sixth aspect, an embodiment of the present application provides a sending apparatus, including: the device comprises a memory and a processor, wherein the memory stores executable instructions of the processor; wherein the processor is configured to perform the method of the second aspect via execution of the executable instructions.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the method in the first aspect.

In an eighth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the method of the second aspect.

The method, the device, the equipment and the storage medium for indicating occupation provided by the embodiment of the application comprise the following steps: and periodically monitoring an occupation indication, and when the occupation indication is detected, determining whether data received by the first N time slots of a first time slot is occupied by other data or not according to the occupation indication, wherein the first time slot is the time slot receiving the occupation indication, and N is a positive integer greater than or equal to 1. Therefore, the energy consumption of the receiving equipment can be reduced, the size of the downlink control information can be reduced, the coverage can be enhanced, and the performance of the false alarm indication can be improved.

Drawings

Fig. 1 is a schematic view of a scenario of a method for indicating occupancy according to an embodiment of the present application;

FIG. 2 is a schematic diagram of the granularity indicated by (0, 14) provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of an indication of particle size (1,7) provided in an embodiment of the present application;

FIG. 4 is a first schematic diagram illustrating a conventional indication method provided by an embodiment of the present application;

FIG. 5 is a second schematic diagram of a conventional indication method provided in the embodiment of the present application;

fig. 6 is a first interaction flowchart of a method for indicating occupation according to an embodiment of the present application;

fig. 7 is a first flowchart illustrating a method for indicating occupancy according to an embodiment of the present application;

fig. 8 is a first schematic diagram of sequence-based occupancy indication provided by an embodiment of the present application;

fig. 9 is a diagram illustrating a sequence-based occupancy indication according to an embodiment of the present application;

fig. 10 is a first schematic diagram illustrating DCI-based occupation indication according to an embodiment of the present application;

fig. 11 is a second flowchart illustrating a method for indicating occupancy according to an embodiment of the present application;

fig. 12 is a schematic diagram two illustrating DCI-based occupation indication according to an embodiment of the present application;

fig. 13 is a third schematic diagram of DCI-based occupancy indication provided in an embodiment of the present application;

fig. 14 is a fourth schematic diagram of DCI-based occupancy indication provided in an embodiment of the present application;

fig. 15 is a third flowchart illustrating a method for indicating occupancy according to an embodiment of the present application;

fig. 16 is a fifth schematic diagram of DCI-based occupation indication provided in an embodiment of the present application;

fig. 17 is a sixth schematic diagram of DCI-based occupancy indication provided in an embodiment of the present application;

FIG. 18 is a first schematic structural diagram of an occupancy-indicating device according to an embodiment of the present disclosure;

FIG. 19 is a second schematic structural diagram of an occupancy-indicating device according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of a receiving device according to an embodiment of the present application;

fig. 21 is a schematic structural diagram of a sending device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic view of a scenario of a method for indicating occupation according to an embodiment of the present application, as shown in fig. 1, where the method for indicating occupation includes a receiving device and a sending device, and the method for indicating occupation according to the present application may be applied to a 5 th generation mobile communication system or a future communication system, and may also be applied to other various wireless communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, a LTE frequency Division Duplex (frequency Division Duplex, FDD) System, a Time Division Duplex (TDD Duplex, UMTS) System, and the like.

It should be understood that the receiving device and the transmitting device in the present application may be a Base Station in a fifth generation Mobile communication System, a Base Transceiver Station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB or eNodeB) in LTE, or a relay Station or an Access point. Of course, the sending device and the receiving device may also be user devices, wherein the user devices may be wireless terminals or wired terminals, and the wireless terminals may be devices providing voice and/or other service data connectivity to users, handheld devices having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile phone (or called a "cellular" phone) and a computer having a mobile terminal, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and exchange languages and/or data with the RAN. For example, a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and the like, which is not limited in this embodiment.

Currently, for the eMBB and the URLLC in the fifth generation mobile communication system, a Preemption Indication (PI) is introduced, where the PI is carried by dedicated Downlink Control Information (DCI), such as DCI format2-1, one DCI format2-1 includes at most 9 PIs, each PI corresponds to a different server cell of different UE, the DCI is periodically transmitted, and the period is configurable to 1, 2, or 4 slots.

Specifically, the occupation indication PI is set to 14 bits, and the 14 bits correspond to different time frequency resources according to a certain indication granularity, fig. 2 is a schematic diagram of the (0, 14) indication granularity provided in the embodiment of the present application, and fig. 3 is a schematic diagram of the (1,7) indication granularity provided in the embodiment of the present application.

As shown in fig. 2, with (0, 14) indicating granularity, a slot is divided into 14 parts in the time domain, that is, a 14-bit PI is used to indicate symbols in the time domain, and a whole bandwidth unit (BWP) is in the frequency domain, and referring to fig. 2, when preemption occurs on symbols symbol 5 and symbol 6, the bit information of the PI is 00001100000000.

As shown in fig. 3, with the granularity indicated by (1,7), a time slot is divided into 7 parts in the time domain, and is divided into 2 parts in the frequency domain (including part1 and part 2), where 14 bits of the PI correspond to 14 parts in the time-frequency resource, and referring to fig. 3, when preemption occurs in the 5 th and 6 th symbols in the time domain and in the frequency domain part1, the bit information of the PI is 00001000000000.

Therefore, the current PI is carried in the downlink control information, and takes the symbol as the basic unit of indication, and when the period of the PI is one slot and the indication granularity of (0, 14) is adopted, and all indicated time domain ranges are downlink symbols, one bit corresponds to one symbol.

However, the maximum period of the current PI is 4 time slots, and monitoring is performed every 4 time slots, so that the power consumption of the receiving equipment is fast; in addition, since the current PI supports cross-carrier indication, and NR-Light does not necessarily support carrier aggregation technology, DCI of PI does not require a plurality of PI domains indicating different cells; because the current DCI stores PI indicating a plurality of cells, the DCI memory is too large, which is not beneficial to enhancing the coverage of NR-Light.

Exemplarily, taking an indication manner of (0, 14) indicating granularity as an example when the number of symbols cannot be divided by the number of bits, fig. 4 is a schematic diagram of a conventional indication manner provided by the embodiment of the present application, and fig. 5 is a schematic diagram of a conventional indication manner provided by the embodiment of the present application.

As shown in fig. 4, the number of bits is 14, the number of symbols is 96, and since the number of symbols cannot be divided exactly by the number of bits, 8 slots are grouped to obtain 14 packets, which are first

In which each group comprises

After a symbol

In which each group comprises

A symbol. As can be seen from fig. 4, the transmitting device repeats to the UE1Data is sent 8 times, and the data is respectively recorded as: the transmitting equipment transmits the 5 th, 6 th, 7 th and 8 th data to the receiving equipment, wherein the data are occupied by other data (respectively recorded as UE2Rep #1, UE2Rep #2, UE2Rep #3 and UE2Rep # 4). Then the 14-bit occupancy indication, i.e., 00000001111101, is set according to the occupancy in the 14 packets. Thus, when receiving the occupation indication, the receiving device discards the data transmitted by the symbol with bit 1.

As can be seen from fig. 4, the current indication method has a certain problem of false alarm indication, which means that no occupancy occurs but is indicated as occupancy, i.e. false alarm occupancy. In the 8 th retransmission, the corresponding bit is indicated as 1, which indicates that all 6 symbols in the time domain are occupied, but actually only the frequency domain part1 is occupied, and the resource of the frequency domain part2 is the resource occupied by the false alarm. In the 6 th retransmission, the bit corresponding to symbol 4 is indicated as 1, which indicates that all 7 symbols corresponding to the bit in the time domain are occupied, but actually only the part of the frequency domain part1 in the last four symbols of the 7 symbols is occupied, and the resources of the first three symbols and the frequency domain part2 are the resources occupied by the false alarm. Wherein, the left oblique line in the figure indicates the resources of the false alarm indication, one box contains 12 resources available for NR-light, and the number of symbols can be configured to be 11 or 13 symbols besides 12. The gaps between each box are resources available to the NR, primarily resources reserved for the NR's control resource set (CORESET).

As shown in fig. 5, the transmitting device transmits to the receiving device that the 5 th, 6 th, 7 th, and 8 th data are occupied by other data (denoted as UE2Rep #1, UE2Rep #2, UE2Rep #3, and UE2Rep #4, respectively), and the 1 st, 2 th, 3 th, and 4 th transmitted data are occupied by other data (denoted as UE3Rep #1, UE3Rep #2, UE3Rep #3, and UE3Rep #4, respectively), and groups the slots in the same manner as in fig. 4. As can be seen from fig. 5, when data transmitted by the transmitting device is occupied by data transmitted to different UEs, there is a serious problem of false alarm occupancy in the 1 st to 8 th repeated transmissions.

In view of the foregoing problems, an embodiment of the present application provides a method for indicating occupancy, including: and periodically monitoring the occupation indication, and when the occupation indication is detected, determining whether the data received by the first N time slots of the first time slot is occupied by other data or not according to the occupation indication, wherein the first time slot is the time slot receiving the occupation indication, and N is a positive integer greater than or equal to 1. Therefore, the energy consumption of the receiving equipment can be reduced, the size of the downlink control information can be reduced, the coverage can be enhanced, and the performance of the false alarm indication can be improved.

The technical solution of the present application will be described in detail by specific examples. It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 6 is a first interaction flowchart of a method for indicating occupancy according to an embodiment of the present application, as shown in fig. 6, the method includes:

s101, the sending equipment determines whether data sent by the first N time slots of a first time slot are occupied by other data, and the first time slot is a time slot for sending an occupation indication.

In practical applications, the data 1 repeatedly transmitted by the transmitting device may be occupied by other data with high requirement on delay, so that the data received by the receiving device includes the data 1 and other data, and thus, the receiving device cannot decode the data 1. Based on this, the sending device sends an occupation indication to the receiving device to inform the receiving device which data is occupied by other data.

In this embodiment, the sending device may determine whether data sent in the first N time slots of the first time slot is occupied by other data, where the first time slot is a time slot for sending an occupation indication, that is, a cycle of the occupation indication is N time slots, and N is a positive integer greater than or equal to 1. The other data may be data sent by the sending device to other receiving devices, for example: data 1 sent by the base station to UE1 is occupied by data 2, where data 2 is data sent by the base station to UE 2.

S102, when the sending equipment determines that the data sent by the first N time slots are occupied by other data, the sending equipment generates an occupation indication according to the occupation situation and sends the occupation indication to the receiving equipment.

And when the data sent by the first N time slots are determined to be occupied by other data, the sending equipment generates an occupation indication according to the occupation situation and sends the occupation indication to the receiving equipment.

The occupation indication may be indicated by using bits, for example: when the occupation indication is 1 bit, when the occupation indication is 1, the data received by the first N time slots are indicated to be occupied by other data, and when the occupation indication is 0, the data received by the first N time slots are indicated not to be occupied by other data; or, when the occupation indication is N bits, each time slot corresponds to one bit, when the bit indication corresponding to a certain time slot is 1, it indicates that the data transmitted by the time slot is occupied by other data, and when the bit indication corresponding to a certain time slot is 0, it indicates that the data transmitted by the time slot is not occupied by other data.

It should be noted that the sending method of the occupation indication is preset by the sending device, and the sending device may be set according to the service type, and this embodiment does not limit the sending method of the occupation indication.

Correspondingly, the receiving device performs the following steps:

and S103, periodically monitoring an occupancy indication.

S104, when the occupation indication is detected, determining whether the data received by the first N time slots of the first time slot are occupied by other data according to the occupation indication, wherein the first time slot is the time slot receiving the occupation indication, and N is a positive integer greater than or equal to 1.

Correspondingly, the receiving device may periodically monitor whether the occupation indication is detected or not by using the N time slots as a cycle, and when the occupation indication is detected, determine whether the data received in the first N time slots of the first time slot is occupied by other data or not according to the occupation indication. When the receiving device detects the occupation indication, whether the data sent by the first N time slots of the first time slot are occupied or not can be determined according to the occupation indication based on the predefined configuration mode. For example: when the occupation indication is 1 bit, when the occupation indication is 1, it indicates that the data received by the first N time slots are occupied by other data, and when the occupation indication is 0, it indicates that the data received by the first N time slots are not occupied by other data.

In this way, based on the configuration mode of the occupation indication, the receiving device may determine whether the data transmitted in the first N time slots of the first time slot is occupied by other data according to the occupation indication.

In one possible implementation, the sending device sending the occupation indication to the receiving device includes:

s1021, sending the occupation indication load in the sequence to the receiving equipment; or, the occupation indication is carried in the downlink control information and is sent to the receiving equipment.

Where a sequence refers to a set of numbers or complex numbers that conform to a characteristic or property that may be embodied by a unified formula.

The Downlink Control information refers to Control information carried by a Physical Downlink Control Channel (PDCCH), and includes uplink and Downlink resource allocation, hybrid Automatic Repeat reQuest (HARQ) information, power Control, and the like.

In this embodiment, the sending device may send the occupation indication bearer to the receiving device in the sequence, or send the bearer to the receiving device in the downlink control information.

Accordingly, the receiving device periodically monitoring for occupancy indications includes:

s1031, periodically monitoring the sequence or downlink control information;

and S1032, acquiring the occupation indication carried in the sequence or the downlink control information.

The receiving device may periodically monitor whether the sequence or the downlink control information is received with N time slots as a cycle, and when the sequence or the downlink control information is received, obtain an occupation indication carried in the sequence or the downlink control information.

Compared with the prior art, the sequence is introduced, the method based on the sequence carrying occupation indication is simple, and the energy consumption of the receiving equipment is saved. By loading the occupation indication in the downlink control information, the bit number occupied by the occupation indication is reduced, and the coverage is enhanced. The following embodiments are specifically described in detail, and are not repeated herein.

The method for indicating occupation provided by the embodiment comprises the following steps: and periodically monitoring an occupation indication, and when the occupation indication is detected, determining whether data received by the first N time slots of a first time slot is occupied by other data or not according to the occupation indication, wherein the first time slot is the time slot receiving the occupation indication, and N is a positive integer greater than or equal to 1. Therefore, the energy consumption of the receiving equipment can be reduced, the size of the downlink control information can be reduced, the coverage is enhanced, and the performance of false alarm indication is improved.

The sending device may set different indication modes of the occupation indication according to the service type, for example, when the occupied data is large and almost occupies the whole time slot, an indication mode based on the time slot level may be adopted, so that the receiving device may discard the data received by the whole time slot; when the occupied data is small and only occupies a part of the time slot, a 2-level symbol indication mode can be adopted, so that a part of data can be discarded.

1. Indication mode based on time slot level

On the basis of the foregoing embodiment, when the occupation indication is carried in the sequence, or when the occupation indication is carried in the downlink control information and the occupation indication occupies 1 bit in the downlink control information, the following describes in detail the technical solution of the present application with reference to fig. 7.

Fig. 7 is a first flowchart illustrating a method for indicating occupancy according to an embodiment of the present application, where as shown in fig. 7, generating an occupancy indication by a sending device according to an occupancy condition includes:

s201, if the sending equipment determines that data sent by at least one time slot in the first N time slots is occupied by other data, setting an occupation indication to be 1; or, if it is determined that none of the data transmitted in the first N slots is occupied by other data, the occupation indication is set to 0.

Wherein, the sequence carries 1 bit of information, and the occupation indication is loaded in the sequence, which indicates that the occupation indication occupies 1 bit in the sequence; and when the occupation indication is carried in the downlink control information and occupies 1 bit in the downlink control information, if the sending equipment determines that the data sent by at least one time slot in the first N time slots is occupied by other data, the occupation indication is set to be 1, and if the data sent by the first N time slots are not occupied by other data, the occupation indication is set to be 0.

Correspondingly, when the sequence carries the occupation indication, or the downlink control information carries the occupation indication, and the occupation indication occupies 1 bit in the downlink control information, the receiving device determines whether the data received by the first N time slots of the first time slot is occupied by other data according to the occupation indication, including:

s202, when the occupation indication is 1, the receiving equipment determines that the data received by the first N time slots are occupied by other data; alternatively, when the occupation indication is 0, the receiving device determines that the data received in the first N slots is not occupied by other data.

When the receiving device receives the occupation indication and the occupation indication is 1, it may be determined that the data received in at least one slot of the first N slots is occupied by other data, and when the occupation indication is 0, the data received in the first N slots is not occupied by other data.

In one implementation, when receiving the sequence, the receiving device may also determine that the data transmitted in the first N slots is occupied by other data, that is, the data may be determined to be occupied as long as the sequence is received.

In a possible implementation manner, when the receiving device does not receive the sequence or the downlink control information, the receiving device may further perform the following steps:

s203, determining that the data received by the first N time slots are occupied by other data; alternatively, it is determined that the data received in the first N slots is not occupied by other data.

Specifically, when the receiving device does not receive the sequence or the downlink control information, indicating that the current missed detection is performed, it may be determined that the data received in the first N time slots is occupied by other data based on a predefined missed detection mode, or it is determined that the data received in the first N time slots is not occupied by other data. The present embodiment is not limited to this, which is set according to actual situations.

In a possible implementation manner, when the receiving device determines that the data received in the first N time slots is occupied by other data, the receiving device may further perform the following steps:

and S204, discarding the data received by the first N time slots.

When the receiving device determines that the data received in the first N time slots is occupied by other data, the received data is discarded, for example: in the first N time slots of the first time slot, data 1 sent by the base station to the UE1 is occupied by data 2, where data 2 is data sent by the base station to the UE2, and both data 1 and data 2 received in the first N time slots are discarded, so that the UE1 can correctly decode to obtain data 1 based on the received data.

The present embodiment will be specifically described below with reference to fig. 8, 9, and 10, as an example.

Fig. 8 is a first schematic diagram of sequence-based occupation indication provided in an embodiment of the present application, fig. 9 is a second schematic diagram of sequence-based occupation indication provided in the embodiment of the present application, and fig. 10 is a first schematic diagram of DCI-based occupation indication provided in the embodiment of the present application. Wherein, the sending device repeatedly sends 12 times data to UE1 in time slot 1 to time slot 12, which are respectively recorded as: UE1Rep #1, UE1Rep #2, UE1Rep #3, UE1Rep #4, UE1Rep #5, UE1Rep #6, UE1Rep #7, UE1Rep #8, UE1Rep #9, UE1Rep #10, UE1Rep #11, UE1Rep #12, N is equal to 4, and the

time slots

5, 9 and 13 are time slots for transmitting the occupation indication. The PI transmission locations identified in the figure are only examples, and their specific transmission time-frequency resource locations may be allocated.

As shown in fig. 8, data UE1Rep #5 transmitted in slot 5 is occupied by data UE2Rep #1, and data UE1Rep #6 transmitted in slot 6 is occupied by data UE2Rep #2, where UE2Rep #1 and UE2Rep #2 are respectively the 1 st data and the 2 nd data transmitted to UE2 by the transmitting device.

When the sending device sends the occupation indication bearer in the sequence to the receiving device, as can be known from fig. 8, if the data sent in the first 4 time slots is not occupied by other data, the occupation indication sent in the time slot 5 is 0; if the data transmitted in the time slot 5 and the time slot 6 is occupied by other data, the occupation indication transmitted in the time slot 9 is 1. In this way, the receiving device may discard the data in time slots 5 to 8 after receiving the occupation indication. The occupation indication transmitted in the slot 13 is 0 since the data transmitted from the slot 9 to the slot 12 is not occupied by other data.

It should be noted that if the receiving device does not receive the occupation indication sent by the time slot 13, that is, a missed detection occurs, the receiving device may consider that the data sent from the time slot 9 to the time slot 12 is occupied by other data when the data cannot be decoded correctly, that is, the occupation indication sent by the default time slot 13 is indicated as 1. Or the data transmitted from slot 9 to slot 12 is considered to be unoccupied by other data, i.e. the occupation indication transmitted from slot 13 is 0. Whether the occupancy indication is missed is to be understood as 0 or 1 may be configured by higher layers or may be defined directly in the standard specification.

As shown in fig. 9, when the data transmitted in the

time slots

1 and 4 is not occupied by other data, the transmitting device does not transmit a sequence in the time slot 5 (indicating no PI sequence with an unfilled color); when the data transmitted in the

time slots

5 and 6 are occupied by other data, the transmitting equipment transmits a sequence in the time slot 9; when the data transmitted from slot 9 to slot 12 is not occupied by other data, the device does not transmit the sequence in slot 13. In this way, the receiving device can discard the data received in time slot 5 to time slot 8 when receiving the sequence. Compared with the mode of fig. 8, the mode that the transmitting side transmits when the transmitting side confirms that the data is occupied does not transmit when the transmitting side does not occupy. Correspondingly, the receiving end confirms that the occupation is available as long as the occupation indication is received, confirms that the occupation is unavailable if the occupation indication is not received, and does not need to judge the 0/1 information carried in the occupation indication.

As shown in fig. 10, when the sending device sends the occupation indication carried in the downlink control information to the receiving device, and the occupation indication occupies 1 bit in the downlink control information, the indication mode and the sequence mode are substantially the same. As can be seen from fig. 10, if the data transmitted in the first 4 slots is not occupied by other data, the occupied indication transmitted in slot 5 is 0; if the data sent by the time slot 5 and the time slot 6 are occupied by other data, the occupation indication sent by the time slot 9 is 1; the data sent from the time slot 9 to the time slot 12 is not occupied by other data, the occupation indication sent from the time slot 13 is theoretically 0, and if the receiving device does not receive the occupation indication sent from the time slot 13, it may be considered that the data sent from the time slot 9 to the time slot 12 is occupied by other data, that is, the receiving device may consider that the occupation indication sent from the time slot 13 may be 1.

The method for indicating occupation provided by the embodiment comprises the following steps: when the occupation indication is carried in the sequence, or when the occupation indication is carried in the downlink control information and the occupation indication occupies 1 bit in the downlink control information, the sending equipment determines that the data sent by at least one time slot in the first N time slots is occupied by other data, and sets the occupation indication to be 1, or sets the occupation indication to be 0 if the data sent by the first N time slots are not occupied by other data; correspondingly, when the occupation indication is 1, the receiving device determines that the data received by the first N time slots are occupied by other data; alternatively, when the occupation indication is 0, the receiving device determines that the data received in the first N slots is not occupied by other data. And the sequence bearing occupation indication is adopted, and from the energy-saving perspective, because the sequence detection is very power-saving, the energy consumption of the receiving equipment is saved, and the carrier aggregation scene does not need to be considered during the sequence design, so that the DCI collision problem can not be generated. In addition, DCI bearing occupation indication is adopted, the size of the DCI is greatly reduced, and the coverage of NR-Light is enhanced.

On the basis of the foregoing embodiment, when the occupation indication is carried in the downlink control information, and the occupation indication takes a timeslot as a basic unit of the indication, and the occupation indication occupies M bits in the downlink control information, the following describes in detail the technical solution of the present application with reference to fig. 11.

Fig. 11 is a flowchart illustrating a second method for indicating occupancy according to an embodiment of the present application, where as shown in fig. 11, generating, by a sending device, an occupancy indication according to an occupancy condition includes:

s301, when N is equal to M, the sending equipment respectively determines whether the data sent by each time slot in the first N time slots is occupied by other data so as to set the numerical value of each bit in the occupation indication; or when N is smaller than M, respectively determining whether the data sent by each time slot in the first N time slots is occupied by other data so as to set the numerical value of each bit in the first N bits in the occupation indication; or when N is greater than M, grouping the first N time slots of the first time slot to obtain M groups, and setting the value of each bit in the occupation indication according to whether the data sent by the M groups are occupied by other data, wherein M is a positive integer greater than 1.

In this embodiment, when N is equal to M, that is, the number of slots is equal to the number of bits, the transmitting device determines whether data transmitted in each slot of the first N slots is occupied by other data, sets a bit corresponding to the occupation indication to 1 when data transmitted in any slot is occupied by other data, and sets a bit corresponding to the occupation indication to 0 when data received in any slot is not occupied by other data.

When N is smaller than M, namely the number of time slots is smaller than the number of bits, the sending equipment respectively determines whether the data sent by each time slot in the first N time slots is occupied by other data so as to set the numerical values of the first N bits in the M bits of the occupation indication, namely, the first N bits are adopted to respectively represent whether the data sent by each time slot in the first N time slots is occupied by other data.

When N is larger than M, namely the number of time slots is larger than the number of bits, M bits cannot be adopted to indicate whether the data sent by N time slots are occupied one by one, the first N time slots are grouped to obtain M groups, and the numerical value of each bit in the occupation indication is set according to whether the data sent by the M groups are occupied by other data, wherein M is a positive integer larger than 1. In this way, M bits can be used to indicate whether the data transmitted by M packets is occupied by other data. Where N is not evenly divisible by M.

Wherein, when N is greater than M, grouping the first N slots to obtain M packets, including:

grouping the first N time slots of the first time slot to be the first

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

Correspondingly, when the occupation indication takes M bits in the downlink control information, the receiving device determines whether the data received by the first N time slots of the first time slot is occupied by other data according to the occupation indication, including:

s302, when N is equal to M, the receiving equipment determines whether the data received by the first N time slots are occupied by other data according to M bits in the occupation indication; or when N is smaller than M, determining whether the data received by the first N time slots are occupied by other data according to the first N bits in the occupation indication; or when N is greater than M, grouping the first N time slots to obtain M groups, and determining whether the data received by the M groups is occupied by other data according to M bits in the occupation indication, wherein M is a positive integer greater than 1.

Wherein, when N is greater than M, grouping the first N slots to obtain M packets, including: grouping the first N time slots to make the first

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

In this way, the receiving device can determine whether the data transmitted by each time slot or packet in the first N time slots is occupied, and when the data transmitted by the time slot or packet is determined to be occupied, the data transmitted by the time slot or packet can be discarded, so that the receiving device can correctly decode the data transmitted by the transmitting device.

The present embodiment will be specifically described below with reference to fig. 12, 13, and 14, as an example.

Fig. 12 is a schematic diagram of a DCI-based occupation indication provided in an embodiment of the present application, fig. 13 is a schematic diagram of a DCI-based occupation indication provided in an embodiment of the present application, and fig. 14 is a schematic diagram of a DCI-based occupation indication provided in an embodiment of the present application. Wherein, the sending device repeatedly sends 12 times data to UE1 in time slot 1 to time slot 12, which are respectively recorded as: UE1Rep #1, UE1Rep #2, UE1Rep #3, UE1Rep #4, UE1Rep #5, UE1Rep #6, UE1Rep #7, UE1Rep #8, UE1Rep #9, UE1Rep #10, UE1Rep #11, UE1Rep #12, N is equal to 4, and the

time slots

5, 9, 13 are time slots for transmitting occupation indication.

As shown in fig. 12, N is equal to M and is equal to 4, and the data transmitted in the first 4 time slots is not occupied by other data, the occupied indication transmitted in the time slot 5 is 0000; data UE1Rep #5 transmitted in slot 5 is occupied by data UE2Rep #1, data UE1Rep #6 transmitted in slot 6 is occupied by data UE2Rep #2, and the occupation indication transmitted in slot 9 is 1100, so that the receiving device discards the data in slot 5 and slot 6 when receiving the occupation indication. The data transmitted from slot 9 to slot 12 is not occupied by other data, and the occupied indication transmitted from slot 13 is 0000.

Similarly, when N is less than M, if N is equal to 4 and M is equal to 9, the sending device may set whether data sent by the first 4 timeslots is occupied according to the first 4 bits of the 9 bits, which is similar to the specific representation manner in fig. 8 and is not described herein again.

As shown in fig. 13, N is equal to M is equal to 8, and the data transmitted from slot 5 to slot 8 is occupied by other data, the occupied indication transmitted from slot 9 is 00001111.

As shown in fig. 14, when N is greater than M, i.e. the number of slots is greater than the number of bits, the data transmitted in each slot cannot be represented one by using M bitsAnd if not, grouping the first N time slots to obtain M groups. If N equals 8 and M equals 3, the first 8 time slots are grouped, the first time slot is divided into groups

Each group of groups comprising 3 time slots, after

Each group of groups contains 2 slots. Then, it is indicated whether the data transmitted in the 3 packets are occupied by other data by using 3 bits, and as can be seen from fig. 14, if the data transmitted in the time slot 5 to the time slot 8 are occupied by other data, the occupation indication transmitted in the time slot 9 is 011.

The method for indicating occupation provided by the embodiment comprises the following steps: when the occupation indication is carried in the downlink control information and the occupation indication takes a time slot as a basic unit of the indication, and the occupation indication occupies M bits in the downlink control information, the occupation indication is generated according to the occupation condition, which comprises: when N is equal to M, the sending equipment respectively determines whether the data sent by each time slot in the first N time slots is occupied by other data so as to set the value of each bit in the occupation indication; or when N is smaller than M, respectively determining whether the data sent by each time slot in the first N time slots is occupied by other data so as to set the value of each bit in the first N bits in the occupation indication; or when N is larger than M, grouping the first N time slots of the first time slot to obtain M groups, and setting the numerical value of each bit in the occupation indication according to whether the data sent by the M groups is occupied by other data; correspondingly, when N is equal to M, the receiving equipment determines whether the data received by the first N time slots are occupied by other data or not according to M bits in the occupation indication; or when N is smaller than M, determining whether the data received by the first N time slots are occupied by other data according to the first N bits in the occupation indication; or when N is larger than M, grouping the first N time slots to obtain M groups, and determining whether the data received by the M groups is occupied by other data according to M bits in the occupation indication. The downlink control information bearing occupation indication is adopted, so that the size of the downlink control information can be greatly reduced, and the coverage range is enhanced.

2. Level 2 based symbol indication mode

Based on the above embodiments, when the occupation indication is carried in DCI and the occupation indication takes a symbol as a basic unit of indication, the following describes the technical solution of the present application in detail with reference to fig. 15.

Fig. 15 is a third flowchart of a method for indicating occupation according to the embodiment of the present application, and as shown in fig. 15, a sending device may perform the following steps:

s401, the sending device sets the occupation indication to be 2-level bit mapping, including first-level bit mapping and second-level bit mapping.

The first-level bit mapping is set as a P bit to indicate an occupation information set in which data transmitted by resources on each time slot in a reference downlink resource range is occupied by other data, and P is a positive integer greater than 1. The second level bit is set to N bits to indicate whether the data transmitted by each time slot in the reference downlink resource range is occupied by other data.

When determining that the data sent by the first N time slots are occupied by other data, the sending equipment generates an occupation indication according to the occupation situation, and the method comprises the following steps:

s402, aiming at the resource in each time slot in the first N time slots, the sending equipment generates an occupation information set according to the situation that the data sent by the resource is occupied by other data so as to set the numerical value of each bit in the first-level bit mapping.

The occupation information set is used for representing a set of occupation information in which data sent by resources in each time slot in the first N time slots is occupied by other data, the occupation information can be represented by 1 and 0, the 1 is used for representing that the data sent by the resources in the time slot is occupied by other data, and the 0 represents that the data sent by the resources in the time slot is not occupied by other data.

The resources in each slot include a number of symbols in the time domain and a number of subcarriers in the frequency domain in the slot. The number of bits of the first-level bitmap may be the same as the number of resource blocks in the time slot, for example: one time slot contains 12 symbols and the bandwidth is 5M. When P is 4, the resource representing the timeslot is divided into 4 non-overlapping resource regions, and each resource region includes 6 symbols in the time domain and subcarriers included in a 2.5M bandwidth in the frequency domain.

The method for generating the occupation information set by the sending equipment according to the situation that the data sent by the resource is occupied by other data comprises the following steps:

generating occupation information of P bits corresponding to the time slot according to the situation that the data sent by the resource is occupied by other data;

and carrying out logic OR operation on the occupation information of N P bits corresponding to the first N time slots to generate an occupation information set of the P bits.

Specifically, since the number of resource blocks in the time slot is the same as the number of bits of the first-level bit map, the occupation information of the P bit corresponding to the time slot may be generated according to the situation that the data sent by each resource in the time slot is occupied by other data, where if the data sent by any resource is occupied by other data, the corresponding bit in the P bit is 1, and if the data sent by any resource is not occupied by other data, the corresponding bit in the P bit is 0, so that the occupation information of the P bit corresponding to each time slot may be obtained.

Through the method, the occupation information of N bits corresponding to the first N time slots can be obtained, and then the occupation information of N bits corresponding to the first N time slots is subjected to logic OR operation to obtain the occupation information set of P bits. For example: p is equal to 4, N is equal to 2, 4 bits of occupancy information corresponding to the 1 st slot is 0100, and 4 bits of occupancy information corresponding to the 2 nd slot is 0001, then the 0100 and 0001 are logically or-operated to obtain a 4-bit occupancy information set, that is, 0100| |0001=0101.

The first-level bit mapping and the second-level bit mapping are two independent domains in the downlink control information; or the first-level bit mapping and the second-level bit mapping are different bits in the same domain in the downlink control information.

Specifically, one configuration is as follows: when the first-level bit mapping and the second-level bit mapping are different bits in the same domain in the downlink control information, the resource of the P + N bits needs to be configured in the domain; when the first-level bitmap and the second-level bitmap are two separate fields in the downlink control information, indicating that the 1 st-level field may not configure the resource of the P bit, i.e. not in the symbol-level indication mode, the 2 nd-level is adopted to perform the slot-level indication. That is, when the first-level bitmap and the second-level bitmap are different bits in the same domain, the technical solution of this embodiment is used for indicating, and when the first-level bitmap and the second-level bitmap are two separate domains in the downlink control information, the time-slot-level indication scheme is used for indicating.

Correspondingly, when the downlink control information carries an occupation indication and the occupation indication takes a symbol as an indicated basic unit, the receiving device may perform the following steps:

s403, when the bit in the first-stage bit map indicates 1, the receiving device determines that the data transmitted by the symbol corresponding to the bit indicated 1 in each slot is occupied by other data.

The occupation indication is 2-level bit mapping and comprises first-level bit mapping and second-level bit mapping, the first-level bit mapping is set to be P bits to indicate an occupation information set that data sent by symbols on each time slot in a reference downlink resource range are occupied by other data, P is a positive integer larger than 1, and the second-level bit mapping is set to be N bits to indicate whether the data sent by each time slot in the reference downlink resource range are occupied by other data.

Wherein, the first level bit mapping and the second level bit mapping are two independent domains in the downlink control information; or, the first level bit map and the second level bit map are different bits in the same domain in the downlink control information.

The reference downlink resource represents a time-frequency resource block indicated by the occupation indication, and the time-frequency resource block comprises all downlink symbols in a time domain and all subcarriers in an access bandwidth in a frequency domain. And the time frequency resource block indicated by the occupation indication is the time frequency resource block corresponding to the first N time slots.

Specifically, the first-level bitmap is P bits, and when a bit in the first-level bitmap indicates 1, the receiving device may determine that data transmitted by a resource corresponding to the bit indicated 1 in each time slot is occupied by other data. For example: the 1 st bit in the P bits of the first level bit map is indicated as 1, which indicates that the data transmitted by the first resource block corresponding to the bit indication on each slot is occupied by other data.

Exemplarily, fig. 16 is a fifth schematic diagram of DCI-based occupation indication provided in an embodiment of the present application, and fig. 17 is a sixth schematic diagram of DCI-based occupation indication provided in an embodiment of the present application.

As shown in fig. 16, the transmitting device repeatedly transmits data to UE 18 times in time slot 1 to time slot 8, which are respectively recorded as: UE1Rep #1, UE1Rep #2, UE1Rep #3, UE1Rep #4, UE1Rep #5, UE1Rep #6, UE1Rep #7, UE1Rep #8,N is equal to 8, P is equal to 4, the data transmitted from slot 5 to slot 8 is occupied by other data, and the other data includes the data transmitted to UE2, and they are respectively written as: UE2Rep #1, UE2Rep #2, UE2Rep #3, and UE2Rep #4 are repeated transmissions of the same data, and the repeated transmissions usually have the same time-frequency position in each time slot.

Dividing each time slot into 4 resource blocks by 4 bits of the first-level bit mapping, wherein each resource block occupies 1 bit, the 4 bits of occupancy information corresponding to the time slots 1 to 4 are 0000, and the 4 bits of occupancy information corresponding to the time slots 5 to 8 are 0100, and 0100, performing logical or operation on the occupancy information to obtain a 4-bit occupancy information set 0100, and then mapping the first-level bit to 0100.

The second level bit map is set to P bits, and when P equals 8, the second level bit map is 00001111, combining the first level bit map and the second level bit map into 12 bits 010000001111. When the receiving device receives the occupation indication, it can be determined that the data sent by the second resource block (the upper right corner resource block) in the time slots 5 to 8 is occupied by other data according to the first-level bit mapping and the second-level bit mapping, and then the receiving device discards the data received in the resource block.

In summary, as can be seen from fig. 16 and fig. 4, the number of bits required for occupancy indication is reduced to a certain extent and the performance of the false alarm indication is improved by using the 2-level symbol indication manner in this embodiment.

As shown in fig. 17, the transmitting device repeatedly transmits data to UE 18 times in slots 1 to 8, where N is equal to 8 and P is equal to 4, the data transmitted in slots 1 to 4 are occupied by other data (denoted as UE3Rep #1, UE3Rep #2, UE3Rep #3, and UE3Rep #4, respectively), and the data transmitted in slots 5 to 8 are occupied by other data (denoted as UE2Rep #1, UE2Rep #2, UE2Rep #3, and UE2Rep #4, respectively).

Dividing each time slot into 4 resource blocks by 4 bits of the first-stage bit mapping, wherein the 4 bits of occupation information corresponding to the time slots 1 to 4 are 0001, 0001 and 0001, and the 4 bits of occupation information corresponding to the time slots 5 to 8 are 0100, 0100 and 0100, carrying out logic or operation on the occupation information to obtain a 4-bit occupation information set 0101, and then mapping the first-stage bit to 0101.

The second-level bit map is set to be P bits, when P is equal to 8, the second-level bit map is 11111111, the first-level bit map and the second-level bit map are combined to be 12-bit 010111111111, when the receiving device receives an occupation indication, it can be determined according to the first-level bit map and the second-level bit map that data sent by the second resource block (upper right-hand corner resource block) and the fourth resource block in the time slot 1 to the time slot 8 are occupied by other data, and then the receiving device discards the data received in the second resource block and the fourth resource block.

It should be noted that, in the scheme, only the data sent by the second resource block is occupied from the time slot 1 to the time slot 4, and only the data sent by the fourth resource block is occupied from the time slot 5 to the time slot 8, in which the fourth resource block from the time slot 1 to the time slot 4 is occupied by a false alarm, and the second resource block from the time slot 5 to the time slot 8 is occupied by a false alarm.

The method for indicating occupation provided by the embodiment comprises the following steps: when the occupation indication is carried in the DCI and the occupation indication takes the symbol as the basic unit of the indication, the sending equipment sets the occupation indication as 2-level bit mapping, including first-level bit mapping and second-level bit mapping, and generates an occupation information set aiming at the resource in each time slot in the first N time slots according to the situation that the data sent by the resource is occupied by other data so as to set the numerical value of each bit in the first-level bit mapping; accordingly, when a bit is indicated as 1 in the first-stage bit map, the receiving device determines that the data transmitted in the symbol corresponding to the bit indicated as 1 in each of its slots is occupied by other data. The performance of the false alarm indication is improved.

Fig. 18 is a schematic structural diagram of an occupancy indication apparatus provided in an embodiment of the present application, which may be integrated in a receiving device, as shown in fig. 18, where the occupancy indication apparatus includes:

a monitoring module 10 for periodically monitoring an occupancy indication;

a determining module 11, configured to determine, when the occupation indication is detected, whether data received in first N timeslots of a first timeslot is occupied by other data according to the occupation indication, where the first timeslot is the timeslot in which the occupation indication is received, and N is a positive integer greater than or equal to 1.

In one possible implementation, the monitoring module 10 is specifically configured to:

periodically monitoring sequences or downlink control information;

In a possible implementation, when the sequence carries the occupation indication, or when the downlink control information carries the occupation indication and the occupation indication occupies 1 bit in the downlink control information, the determining module 11 is specifically configured to:

alternatively, the first and second electrodes may be,

In a possible implementation, when the sequence or the downlink control information is not received, the determining module 11 is further configured to:

alternatively, the first and second liquid crystal display panels may be,

a discarding module 12, configured to discard the data received in the first N timeslots.

In a possible implementation, the occupation indication is carried in the downlink control information, and the occupation indication takes a timeslot as a basic unit of indication, and when the occupation indication occupies M bits in the downlink control information, the determining module 11 is specifically configured to:

alternatively, the first and second electrodes may be,

and when N is greater than M, grouping the first N time slots to obtain M groups, and determining whether the data received by the M groups are occupied by other data or not according to M bits in the occupation indication, wherein M is a positive integer greater than 1.

grouping the first N time slots to be front

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

alternatively, the first and second electrodes may be,

The apparatus provided in the embodiment of the present application may be configured to execute the method performed by the receiving device, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 19 is a schematic structural diagram of an occupancy indication apparatus provided in the embodiment of the present application, where the occupancy indication apparatus may be integrated in a sending device, as shown in fig. 19, and the occupancy indication apparatus includes:

a determining module 20, configured to determine whether data sent in first N timeslots of a first timeslot is occupied by other data, where the first timeslot is a timeslot for sending the occupation indication;

a processing module 21, configured to generate an occupation indication according to an occupation situation when it is determined that the data sent in the first N time slots is occupied by other data, and a sending module 22, configured to send the occupation indication to a receiving device, where N is a positive integer greater than or equal to 1.

In a possible implementation, the sending module 22 is specifically configured to:

sending the occupation indication bearer to a receiving device in a sequence;

alternatively, the first and second electrodes may be,

In a possible implementation, when the occupation indication is carried in the sequence, or when the occupation indication is carried in the downlink control information and the occupation indication occupies 1 bit in the downlink control information, the processing module 21 is specifically configured to:

alternatively, the first and second electrodes may be,

In a possible implementation, when the occupation indication is carried in the downlink control information, and the occupation indication takes a timeslot as a basic unit of indication, and the occupation indication occupies M bits in the downlink control information, the processing module 21 is specifically configured to:

alternatively, the first and second electrodes may be,

when N is smaller than M, respectively determining whether the data sent by each time slot in the first N time slots is occupied by other data so as to set the numerical value of each bit in the first N bits in the occupation indication;

alternatively, the first and second liquid crystal display panels may be,

In a possible implementation, when N is greater than M, the processing module 21 is specifically configured to:

grouping the first N time slots to be front

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

In a possible implementation, when the occupation indication is carried in the downlink control information, and the occupation indication takes a symbol as an indicated basic unit, the processing module 21 is further configured to:

and setting the second-level bit to be N bits to indicate whether the data transmitted by each time slot in the reference downlink resource range is occupied by other data or not.

alternatively, the first and second electrodes may be,

In a possible implementation, when the processing module 21 determines that the data sent in the first N time slots is occupied by other data, the processing module 21 is specifically configured to:

and setting the numerical value of each bit in the second-level bit map aiming at each time slot in the first N time slots according to the condition that whether the data sent by the time slot is occupied by other data or not.

In a possible implementation, the processing module 21 is specifically configured to:

The apparatus provided in the embodiment of the present application may be configured to execute the method executed by the sending device, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 20 is a schematic structural diagram of a receiving device provided in the embodiment of the present application, and as shown in fig. 20, the receiving device 30 of the present embodiment may include: a processor 31 and a memory 32.

A memory 32 for storing a computer program (e.g., an application program, a functional module, etc. implementing the above-described method), computer instructions, etc.;

the computer programs, computer instructions, etc. described above may be stored in one or more memories 32 in partitions. And the above-mentioned computer program, computer instructions, data, etc. can be called by the processor 31.

A processor 31 for executing the computer program stored in the memory 32 to implement the steps of the method involved in the receiving device described above.

Reference may be made in particular to the description relating to the preceding method embodiment.

The processor 31 and the memory 32 may be separate structures or may be integrated structures integrated together. When the processor 31 and the memory 32 are separate structures, the memory 32 and the processor 31 may be coupled by a bus 33.

Fig. 21 is a schematic structural diagram of a sending device provided in an embodiment of the present application, and as shown in fig. 21, a receiving device 40 in this embodiment may include: a processor 41 and a memory 42.

A memory 42 for storing a computer program (e.g., an application program, a functional module, etc. implementing the above-described method), computer instructions, etc.;

the computer programs, computer instructions, etc. described above may be stored in partitions in one or more memories 42. And the above-mentioned computer program, computer instructions, data, etc. can be called by the processor 41.

A processor 41 for executing the computer program stored in the memory 42 to implement the steps of the method involved in the receiving device described above.

Reference may be made in particular to the description relating to the previous method embodiments.

The processor 41 and the memory 42 may be separate structures or may be integrated structures integrated together. When the processor 41 and the memory 42 are separate structures, the memory 42 and the processor 41 may be coupled by a bus 43.

An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, which, when executed by a processor, implements a method on a receiving device side.

An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, which, when executed by a processor, implements a method on a transmitting device side.

Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in user equipment. Of course, the processor and the storage medium may reside as discrete components in a communication device.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

The present application further provides a program product comprising a computer program stored in a readable storage medium, from which the computer program can be read by at least one processor of a server, the computer program being executable by the at least one processor to cause the server to carry out the method of any of the embodiments of the present application described above.

Claims

1. A method for indicating occupancy, applied to a receiving device, comprising:

periodically monitoring for occupancy indications;

when the occupation indication is detected, determining whether data received by the first N time slots of a first time slot are occupied by other data or not according to the occupation indication, wherein the first time slot is the time slot for receiving the occupation indication, and N is a positive integer greater than or equal to 1;

when it is determined that the data sent by the first N time slots are occupied by other data, the sending device generates an occupation information set according to a situation that the data sent by the resource in each time slot of the first N time slots is occupied by other data, so as to set a numerical value of each bit in the first-level bit map, and sets a numerical value of each bit in the second-level bit map according to a situation that whether the data sent by each time slot of the first N time slots is occupied by other data; the first level bit map and the second level bit map are two independent domains in downlink control information; or, the first level bit map and the second level bit map are different bits in the same domain in the downlink control information.

2. The method of claim 1, wherein the periodically monitoring for occupancy indications comprises:

periodically monitoring a sequence or downlink control information;

3. The method according to claim 2, wherein when the occupation indication is carried in the sequence or carried in the downlink control information, and the occupation indication occupies 1 bit in the downlink control information, the determining whether the data received in the first N timeslots of the first timeslot is occupied by other data according to the occupation indication comprises:

alternatively, the first and second electrodes may be,

4. The method of claim 2, wherein when the sequence or the downlink control information is not received, the method further comprises:

alternatively, the first and second electrodes may be,

5. The method according to claim 3 or 4, wherein when it is determined that the data received in the first N time slots is occupied by other data, the method further comprises:

and discarding the data received by the first N time slots.

6. The method of claim 2, wherein the carrying the occupation indication in the downlink control information, and the occupation indication uses a timeslot as a basic unit of indication, and when the occupation indication occupies M bits in the downlink control information, the determining, according to the occupation indication, whether data received in the first N timeslots of the first timeslot is occupied by other data includes:

alternatively, the first and second electrodes may be,

7. The method of claim 6, wherein grouping the first N slots to obtain M packets when N is greater than M comprises:

grouping the first N time slots to make the first time

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

8. The method of claim 2, wherein when the occupation indication is carried in the downlink control information and the occupation indication uses a symbol as an indicated basic unit, the occupation indication is 2-level bitmap, which includes a first-level bitmap and a second-level bitmap;

9. The method of claim 8, wherein when a bit in the first-level bitmap indicates 1, determining that the data transmitted from the resource corresponding to the bit indicating 1 in each slot is occupied by the other data.

10. A method for indicating occupancy, applied to a transmitting device, comprising:

determining whether data sent by the first N time slots of a first time slot are occupied by other data, wherein the first time slot is a time slot for sending an occupation indication;

when the data sent by the first N time slots are determined to be occupied by other data, an occupation indication is generated according to the occupation situation and sent to receiving equipment, wherein N is a positive integer greater than or equal to 1;

when it is determined that the data sent by the first N time slots are occupied by other data, the generating an occupation indication according to the occupation situation includes:

setting a numerical value of each bit in a second-level bit map according to the condition that whether the data sent by the time slot is occupied by other data or not aiming at each time slot in the first N time slots;

wherein the first level bit map and the second level bit map are two separate fields in downlink control information; or, the first level bit map and the second level bit map are different bits in the same domain in the downlink control information.

11. The method of claim 10, wherein the sending the indication of occupancy to a receiving device comprises:

sending the occupation indication bearer to a receiving device in a sequence;

alternatively, the first and second electrodes may be,

12. The method of claim 11, wherein when the occupation indication is carried in the sequence or when the occupation indication is carried in the downlink control information and the occupation indication occupies 1 bit in the downlink control information, the generating the occupation indication according to the occupation situation comprises:

alternatively, the first and second electrodes may be,

13. The method according to claim 12, wherein when the occupation indication is carried in the downlink control information and the occupation indication uses a timeslot as a basic unit for indication, and the occupation indication occupies M bits in the downlink control information, the generating the occupation indication according to the occupation status includes:

alternatively, the first and second electrodes may be,

14. The method of claim 13, wherein grouping the first N slots of the first slot to obtain M packets when N is greater than M comprises:

for the first N time slotsAre grouped so as to be ahead

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

15. The method of claim 12, wherein when the occupation indication is carried in the downlink control information and the occupation indication has a symbol as an indicated basic unit, the method further comprises:

16. The method according to claim 10, wherein the generating the occupation information set according to the situation that the data transmitted by the resource is occupied by other data comprises:

17. An apparatus for indicating occupancy, comprising:

a monitoring module for periodically monitoring the occupancy indication;

a determining module, configured to determine, when the occupation indication is detected, whether data received in first N timeslots of a first timeslot is occupied by other data according to the occupation indication, where the first timeslot is the timeslot in which the occupation indication is received, and N is a positive integer greater than or equal to 1; when it is determined that the data sent by the first N time slots are occupied by other data, the sending device generates an occupation information set according to a situation that the data sent by the resource in each time slot of the first N time slots is occupied by other data, so as to set a numerical value of each bit in the first-level bit map, and sets a numerical value of each bit in the second-level bit map according to a situation that whether the data sent by each time slot of the first N time slots is occupied by other data; the first level bit map and the second level bit map are two independent domains in downlink control information; or, the first level bit map and the second level bit map are different bits in the same domain in the downlink control information.

18. The apparatus of claim 17, wherein the monitoring module is specifically configured to:

periodically monitoring a sequence or downlink control information;

19. The apparatus of claim 18, wherein when the occupation indication is carried in the sequence or carried in the downlink control information, and the occupation indication occupies 1 bit in the downlink control information, the determining module is specifically configured to:

alternatively, the first and second electrodes may be,

20. The apparatus of claim 18, wherein when the sequence or the downlink control information is not received, the determining module is further configured to:

alternatively, the first and second electrodes may be,

21. The apparatus according to claim 19 or 20, wherein when the determining module determines that the data received in the first N timeslots is occupied by other data, the apparatus further comprises:

22. The apparatus of claim 18, wherein the occupation indication is carried in the downlink control information, and the occupation indication uses a timeslot as a basic unit of indication, and when the occupation indication occupies M bits in the downlink control information, the determining module is specifically configured to:

alternatively, the first and second liquid crystal display panels may be,

alternatively, the first and second electrodes may be,

23. The apparatus of claim 22, wherein when N is greater than M, the determining module is specifically configured to:

grouping the first N time slots to be front

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

24. The apparatus of claim 18, wherein when the occupation indication is carried in the downlink control information and the occupation indication uses a symbol as an indicated basic unit, the occupation indication is 2-level bitmap and includes a first-level bitmap and a second-level bitmap;

25. The apparatus of claim 24, wherein when a bit in the first-level bitmap indicates 1, it is determined that data transmitted from a resource corresponding to the bit indicating 1 in each slot is occupied by the other data.

26. An apparatus for indicating occupancy, comprising:

a determining module, configured to determine whether data sent in first N time slots of a first time slot is occupied by other data, where the first time slot is a time slot for sending an occupation indication;

the processing module is used for generating an occupation indication according to the occupation situation when the data sent by the first N time slots are determined to be occupied by other data, the sending module is used for sending the occupation indication to the receiving equipment, and N is a positive integer greater than or equal to 1;

when the processing module determines that the data sent by the first N time slots is occupied by other data, the processing module is specifically configured to:

27. The apparatus of claim 26, wherein the sending module is specifically configured to:

sending the occupation indication bearer to a receiving device in a sequence;

alternatively, the first and second electrodes may be,

28. The apparatus of claim 27, wherein when the occupation indication is carried in the sequence or when the occupation indication is carried in the downlink control information and the occupation indication occupies 1 bit in the downlink control information, the processing module is specifically configured to:

alternatively, the first and second electrodes may be,

29. The apparatus of claim 28, wherein when the occupation indication is carried in the downlink control information and the occupation indication uses a timeslot as an indicator basic unit, and the occupation indication occupies M bits in the downlink control information, the processing module is specifically configured to:

alternatively, the first and second electrodes may be,

30. The apparatus of claim 29, wherein when N is greater than M, the processing module is specifically configured to:

grouping the first N time slots to be front

In which each group comprises

A time slot after

In which each group comprises

And a time slot.

31. The apparatus of claim 28, wherein when the occupation indication is carried in the downlink control information and the occupation indication has a symbol as an indicated basic unit, the processing module is further configured to:

32. The apparatus of claim 26, wherein the processing module is specifically configured to:

and performing logical OR operation on the occupation information of the N P bits corresponding to the first N time slots to generate the occupation information set of the P bits.

33. A receiving device, comprising: the device comprises a memory and a processor, wherein the memory stores executable instructions of the processor; wherein the processor is configured to perform the method of any of claims 1-9 via execution of the executable instructions.

34. A transmitting device, comprising: the device comprises a memory and a processor, wherein the memory stores executable instructions of the processor; wherein the processor is configured to perform the method of any one of claims 10-16 via execution of the executable instructions.

35. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 9.

36. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 10 to 16.