CN112969197B - Data transmission method and device for enhancing coverage scene and computer-readable storage medium - Google Patents
Data transmission method and device for enhancing coverage scene and computer-readable storage medium Download PDFInfo
- Publication number
- CN112969197B CN112969197B CN202110130544.XA CN202110130544A CN112969197B CN 112969197 B CN112969197 B CN 112969197B CN 202110130544 A CN202110130544 A CN 202110130544A CN 112969197 B CN112969197 B CN 112969197B
- Authority
- CN
- China
- Prior art keywords
- physical
- channels
- signals
- resource
- collided
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000004590 computer program Methods 0.000 claims description 12
- 208000037918 transfusion-transmitted disease Diseases 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000011664 signaling Effects 0.000 description 4
- 101150096310 SIB1 gene Proteins 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000013468 resource allocation Methods 0.000 description 3
- 230000010485 coping Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0294—Traffic management, e.g. flow control or congestion control forcing collision
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A data transmission method and apparatus, computer-readable storage medium, for enhancing coverage scenarios, the method comprising: determining a conflict physical resource according to the scheduling information, wherein the conflict physical resource refers to a physical resource which is simultaneously occupied by a plurality of physical channels or physical signal indications; transmitting the physical channels or physical signals with the highest resource occupation priority in the plurality of physical channels or physical signals by using the conflict physical resources, wherein the physical channels or physical signals with the highest resource occupation priority occupy the conflict physical resources; processing data transmission of remaining physical channels or physical signals of the plurality of physical channels or physical signals on the colliding physical resources according to a collision scenario. When physical resource conflict occurs to different physical channels or physical signals due to scheduling, the data transmission mechanism provided by the scheme of the invention can ensure that important physical channels or physical channels are transmitted preferentially and reasonably process other physical channels and physical signals which conflict with each other.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus for enhancing a coverage scenario, and a computer-readable storage medium.
Background
The physical channel is repeatedly transmitted in the enhanced coverage scenario. Taking a Physical Downlink Shared Channel (PDSCH for short) as an example, one grant may be repeatedly transmitted 2048 times at maximum. On the other hand, the physical channel has frequency hopping in the frequency domain, and at different times, the resources occupied by the physical channel configured with frequency hopping in the frequency domain will change.
Different physical channels or physical signals cannot occupy the same physical resource at the same time. However, due to repeated transmission and frequency hopping, and a Flexible resource allocation strategy of a Physical Uplink Shared Channel (PUSCH) and a PDSCH, a challenge is brought to scheduling of a Physical Channel and a Physical signal.
For example, the flexible Resource allocation strategy is a concept proposed by Release 15 (R15), and this Resource allocation manner easily allows the PDSCH allocation to exceed the narrow-band definition range of enhanced Machine-Communication (eMTC), which may cause Resource collision between the PDSCH and a partial Physical Resource Block (PRB) of an MTC Physical Downlink Control Channel (MPDCCH).
When physical resource conflict occurs, the prior art cannot provide appropriate coping logic, so that data cannot be effectively transmitted.
Disclosure of Invention
The technical problem solved by the invention is how to ensure the effective transmission of data when physical resource conflict occurs in different physical channels or physical signals due to scheduling.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a data transmission method for enhancing a coverage scenario, including: determining a conflict physical resource according to the scheduling information, wherein the conflict physical resource refers to a physical resource which is indicated to be occupied by a plurality of physical channels or physical signals at the same time; transmitting the physical channels or physical signals with the conflict physical resources, wherein the physical channel or physical signal with the highest resource occupation priority occupies the conflict physical resources; processing data transmission of remaining physical channels or physical signals of the plurality of physical channels or physical signals on the colliding physical resources according to a collision scenario.
Optionally, the types of the physical channels or physical signals occupying the conflicting physical resources are indicated to be different at the same time, whether the physical channels or physical signals occupying the conflicting physical resources are repeated for multiple TTIs is indicated, and/or when the code rate sent by the physical channels occupying the conflicting physical resources only using the non-conflicting physical resources exceeds a preset threshold is indicated, the physical channels or physical signals correspond to different conflicting scenarios.
Optionally, the recording of the remaining physical channels or physical signals in the plurality of physical channels or physical signals as collided physical channels or physical signals, where the processing of data transmission on the collided physical resources by the remaining physical channels or physical signals in the plurality of physical channels or physical signals according to the collision scenario includes: selecting a processing mode for the physical channel or the physical signal according to the collision scene, wherein the processing mode is selected from the following processing modes: zeroing out data transmitted by the collided physical channel or physical signal on the colliding physical resource; canceling the data transmission of the collided physical channel or physical signal; delaying data transmission of the collided physical channel or physical signal; and eliminating the conflict physical resource from the available physical resources of the physical channel or physical signal which is conflicted.
Optionally, if the collided physical channel or physical signal is not successfully transmitted after the delay time reaches the maximum delay time, the transmission of the collided physical channel or physical signal is cancelled.
In order to solve the foregoing technical problem, an embodiment of the present invention further provides a data transmission method for enhancing a coverage scenario, including: determining a conflict physical resource according to the scheduling information, wherein the conflict physical resource refers to a physical resource which is indicated to be occupied by a plurality of physical channels or physical signals at the same time; receiving data transmitted through the conflicting physical resource, wherein the received data is a physical channel or physical signal with highest priority occupied by resources in the multiple physical channels or physical signals; and determining the data transmission result of the rest physical channels or physical signals in the plurality of physical channels or physical signals on the conflict physical resources according to the conflict scene.
Optionally, the types of the physical channels or physical signals occupying the conflicting physical resources are indicated to be different at the same time, whether the physical channels or physical signals occupying the conflicting physical resources are repeated for multiple TTIs is indicated, and/or when the code rate sent by the physical channels occupying the conflicting physical resources only using the non-conflicting physical resources exceeds a preset threshold is indicated, the physical channels or physical signals correspond to different conflicting scenarios.
Optionally, the recording of the remaining physical channels or physical signals in the multiple physical channels or physical signals as collided physical channels or physical signals, where the determining, according to the collision scenario, the data transmission result of the remaining physical channels or physical signals in the multiple physical channels or physical signals on the collided physical resource includes: selecting a determination mode of the data transmission result according to the collision scene, wherein the determination mode is selected from the following modes: determining that data transmitted by the collided physical channel or physical signal on the collision physical resource is zero; determining that the collided physical channel or physical signal does not transmit data on the colliding physical resources; determining that the collided physical channel or physical signal is not in data transmission.
Optionally, the data transmission method further includes: when the selected determining mode is that the data transmitted by the collided physical channel on the collision physical resource is determined to be zero, and when the collided physical channel is subjected to rate matching, LLR weighting and/or retransmission data combination, LLRs corresponding to the collision physical resource are removed; when the selected determining mode is that the collided physical channel or the physical signal is determined not to transmit data on the collided physical resource, recalculating the total number of the physical resources of the collided physical channel, recalculating the code rate, verifying whether the code rate exceeds a preset threshold, and receiving the data according to the updated physical resource after collision when the code rate does not exceed the preset threshold; when the selected determination is that the collided physical channel or physical signal is determined not to transmit data on the collided physical resource, processing according to the unsuccessfully received physical channel or physical signal.
In order to solve the above technical problem, an embodiment of the present invention further provides a data transmission apparatus for enhancing a coverage scenario, including: the device comprises a determining module and a scheduling module, wherein the determining module is used for determining conflict physical resources according to scheduling information, and the conflict physical resources refer to physical resources which are simultaneously occupied by a plurality of physical channels or physical signal indications; a transmission module, configured to transmit the physical channel or physical signal with the highest resource occupation priority among the multiple physical channels or physical signals using the conflicting physical resource, where the conflicting physical resource is occupied by the physical channel or physical signal with the highest resource occupation priority; and the processing module is used for processing the data transmission of the rest physical channels or physical signals in the plurality of physical channels or physical signals on the conflict physical resources according to the conflict scene.
In order to solve the above technical problem, an embodiment of the present invention further provides a data transmission apparatus for enhancing a coverage scenario, including: a first determining module, configured to determine a conflicting physical resource according to scheduling information, where the conflicting physical resource is a physical resource that is simultaneously occupied by multiple physical channels or physical signal indications; a receiving module, configured to receive data transmitted through the conflicting physical resource, where the received data is a physical channel or a physical signal with a highest priority occupied by a resource in the multiple physical channels or physical signals; a second determining module, configured to determine, according to a collision scenario, a data transmission result of remaining physical channels or physical signals in the plurality of physical channels or physical signals on the collision physical resource.
To solve the above technical problem, an embodiment of the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and has a computer program stored thereon, where the computer program is executed by a processor to perform the steps of the above method.
In order to solve the above technical problem, an embodiment of the present invention further provides a data transmission apparatus for enhancing coverage scenes, including a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the steps of the method when executing the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
on the transmitting end side, an embodiment of the present invention provides a data transmission method for enhancing a coverage scenario, including: determining a conflict physical resource according to the scheduling information, wherein the conflict physical resource refers to a physical resource which is indicated to be occupied by a plurality of physical channels or physical signals at the same time; transmitting the physical channels or physical signals with the highest resource occupation priority in the plurality of physical channels or physical signals by using the conflict physical resources, wherein the physical channels or physical signals with the highest resource occupation priority occupy the conflict physical resources; processing data transmission of remaining physical channels or physical signals of the plurality of physical channels or physical signals on the colliding physical resources according to a collision scenario.
By adopting the embodiment, when physical resource conflicts occur due to scheduling of different physical channels or physical signals, the data transmission mechanism provided by the scheme of the invention can ensure that the data carried by the most important physical channel or physical channel is transmitted preferentially, and reasonably processes other physical channels and physical signals which conflict with each other. Specifically, for a plurality of physical channels or physical signals in which collisions occur, it is preferable to transmit only the physical channel or physical signal with the highest priority among them using the physical resource. Further, for other physical channels or physical signals which are collided, processing logic is determined in a targeted manner according to a specific collision scenario, so that the physical channels or physical signals which are collided are ensured to be processed most appropriately.
On the receiving end side, an embodiment of the present invention further provides a data transmission method for enhancing a coverage scenario, including: determining a conflict physical resource according to the scheduling information, wherein the conflict physical resource refers to a physical resource which is simultaneously occupied by a plurality of physical channels or physical signal indications; receiving data transmitted through the conflicting physical resource, wherein the received data is a physical channel or physical signal with highest priority occupied by resources in the multiple physical channels or physical signals; and determining the data transmission result of the rest physical channels or physical signals in the plurality of physical channels or physical signals on the conflict physical resources according to the conflict scene.
By adopting the embodiment, when physical resources conflict among different physical channels or physical signals due to scheduling, the data transmission mechanism provided by the scheme of the invention can receive the data carried by the most important physical channel or physical signal in the first time, and determine the data transmission result of other physical channels or physical signals which conflict with each other in a consistent manner with the transmitting end.
Drawings
Fig. 1 is a flowchart of a data transmission method for enhancing a coverage scene according to a first embodiment of the present invention;
fig. 2 is a flowchart of a data transmission method for enhancing a coverage scene according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a data transmission apparatus for enhancing coverage scenes according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a data transmission apparatus for enhancing coverage scenes according to a second embodiment of the present invention.
Detailed Description
As mentioned in the background, when a physical resource conflict occurs, the prior art cannot provide appropriate coping logic, so that data cannot be transmitted efficiently.
The embodiment of the invention provides a data transmission method for enhancing a coverage scene, which comprises the following steps: determining a conflict physical resource according to the scheduling information, wherein the conflict physical resource refers to a physical resource which is simultaneously occupied by a plurality of physical channels or physical signal indications; transmitting the physical channels or physical signals with the highest resource occupation priority in the plurality of physical channels or physical signals by using the conflict physical resources, wherein the physical channels or physical signals with the highest resource occupation priority occupy the conflict physical resources; processing data transmission of remaining physical channels or physical signals of the plurality of physical channels or physical signals on the colliding physical resources according to a collision scenario.
By adopting the embodiment, when physical resources conflict occurs due to scheduling of different physical channels or physical signals, the data transmission mechanism provided by the scheme of the invention can ensure that data carried by the most important physical channel or physical channel is transmitted preferentially, and reasonably processes other conflicting physical channels and physical signals. Specifically, for a plurality of physical channels or physical signals in which collisions occur, it is preferable to transmit only the physical channel or physical signal with the highest priority among them using the physical resource. Further, for other physical channels or physical signals which are collided, processing logic is determined in a targeted manner according to a specific collision scenario, so that the physical channels or physical signals which are collided are ensured to be processed most appropriately.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a data transmission method for enhancing a coverage scene according to a first embodiment of the present invention.
This embodiment may be performed by a Transmitter (Tx) adapted to transmit data outwards in an enhanced coverage scenario. For example, data may be carried by a physical channel or a physical signal to be transmitted to a receiving end. The transmitting end may comprise a user equipment. Specifically, the present embodiment may be executed by a chip having a data transmission function in the user equipment, and may also be executed by a baseband chip in the user equipment.
Specifically, referring to fig. 1, the data transmission method for enhancing a coverage scenario according to this embodiment may include the following steps:
step S101, determining conflict physical resources according to scheduling information, wherein the conflict physical resources refer to physical resources occupied by a plurality of physical channels or physical signal indications at the same time;
step S102, using the conflict physical resource to transmit the physical channel or physical signal with the highest resource occupation priority to occupy the conflict physical resource;
step S103, processing the data transmission of the remaining physical channels or physical signals in the plurality of physical channels or physical signals on the conflict physical resources according to the conflict scenario.
More specifically, the scheduling information may be used to indicate physical resources occupied by each physical channel or physical signal indication. For the same physical resource, if there are multiple physical channels or physical signals indicating to occupy the physical resource, the physical resource may be considered as a conflicting physical resource. These multiple physical channels or physical signals may collide at the colliding physical resources and may be referred to as colliding physical channels or physical signals. The plurality of physical channels or physical signals may refer to a plurality of physical channels, may refer to a plurality of physical signals, and may refer to a mixed situation of at least one physical channel and at least one physical signal. The physical Resource may be a Resource Element (RE for short).
For example, according to the scheduling information, the transmitting end may separately calculate and mark the physical resources occupied by each physical channel or physical signal. Taking a certain physical resource as an example, assuming that the marking result of the physical signal and/or the physical channel that needs to be transmitted on the physical resource is: the Physical resource carries a Physical Broadcast Channel (PBCH) and a Physical Downlink Shared Channel (PDSCH). The marking result shows that the physical resource is a conflict physical resource, and the physical channels with conflicts are PBCH and PDSCH.
In this embodiment, the physical channels may include: PBCH; a Machine Type Communication Physical Downlink Control Channel (MTC PDCCH, i.e. MPDCCH for short); a PDSCH; a Physical Uplink Shared Channel (PUSCH); a Physical Uplink Control Channel (PUCCH for short); a Physical Random Access Channel (PRACH).
In this embodiment, the physical signals may include: system Information Block 1(SIB1 for short) is set; other System Information Block (Other System Information Block, abbreviated as Other SIB); a system information block 1(SIB1 Bandwidth Reduced, SIB1-BR) with a small Bandwidth; other system information blocks of small bandwidth (Other SIB-BR); channel State Information-Reference Signal (CSI-RS for short); primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS); cell Reference Signal (CRS); Wake-Up Signal (WUS); resynchronization reference signal (RSS for short); positioning Reference Signal (PRS); demodulation Reference Signal (DMRS).
Further, the resource occupation priority corresponding to each physical channel may be predetermined, and similarly, the resource occupation priority corresponding to each physical signal may be predetermined. For example, the resource occupation priority of the physical channels or physical signals may be predetermined according to a protocol.
Further, for the same physical resource, if multiple physical channels or physical signals all indicate to occupy the physical resource, step S102 and step S103 may be performed to determine the data transmission scheme on the physical resource.
In step S102, according to the resource occupation priorities corresponding to the conflicting physical channels or physical signals, it may be determined that the conflicting physical channel or physical signal with the highest resource occupation priority successfully occupies the conflicting physical resource, and the remaining conflicting physical channels or physical signals execute different processing manners according to a specific conflicting scenario (corresponding to step S103).
That is, for a plurality of physical channels or physical signals simultaneously indicating to occupy the conflicting physical resource, the physical channel or physical signal with the highest priority of resource occupation is successfully transmitted by executing step S102 using the conflicting physical resource. The remaining physical channels or physical signals are referred to as the physical channels or physical signals that are collided, and the collided physical resources cannot be used for transmission, but are processed according to a specific collision scenario.
And the PBCH and the PDSCH are used for indicating that the same physical resource is occupied, and the resource occupation priority of the PBCH is higher than that of the PDSCH. Accordingly, the PBCH can be transmitted through the collision physical resource, and the PDSCH as a collided physical channel is processed accordingly according to the current collision scenario.
The collision scenario may refer to a specific case indicating a plurality of physical channels or physical signals occupying the same collision physical resource. That is, different physical channels or physical signals in which collisions occur correspond to different collision scenarios, and the corresponding step S103 selects different collision resolution methods for processing.
In one embodiment, when the types of the physical channels or physical signals simultaneously indicating that the physical resources occupy the collision are different, the collision scenario may be different. For example, the collision scenario corresponding to the case where the SRS and PUSCH indicate that the same collision physical resource is occupied may be different from the collision scenario corresponding to the case where the SIB1 and MPDCCH indicate that the same collision physical resource is occupied.
In a specific implementation, when indicating whether a physical channel or a physical signal occupying the collision physical resource has multiple Transmission Time Intervals (TTI) repetition, the method may correspond to different collision scenarios. That is, a collision scenario corresponding to a collision physical channel or a physical signal being a multi-TTI repetition may be different from a collision scenario corresponding to a collision physical channel or a physical signal not being a multi-TTI repetition.
In a specific implementation, when the code rate indicating that the physical channel occupying the conflicting physical resource only uses the non-conflicting physical resource to send exceeds a preset threshold, the method may correspond to different conflicting scenarios. That is to say, a collision scenario corresponding to a collision physical channel or a physical signal that is sent only using a non-collision physical resource and has a code rate exceeding a preset threshold may be different from a collision scenario corresponding to a collision physical channel or a physical signal that is sent only using a non-collision physical resource and has a code rate not exceeding a preset threshold. The specific value of the preset threshold may be determined according to an actual application scenario, and different physical channels or physical signals may correspond to different preset thresholds.
In one embodiment, the three situations may be considered in combination of two or simultaneously, for example, when the types of the physical channels or physical signals occupying the conflicting physical resources are different, whether the physical channels or physical signals occupying the conflicting physical resources are repeated for multiple TTIs, and whether the code rate, which indicates that the physical channels occupying the conflicting physical resources only use non-conflicting physical resources for transmission, exceeds a preset threshold, the three situations may correspond to different conflict scenarios.
In a specific implementation, the collision scenario and the association relationship indicating the type of the physical channel or the physical signal occupying the collision physical resource, indicating whether the physical channel or the physical signal occupying the collision physical resource is repeated for multiple TTIs, and/or indicating whether the code rate sent by the physical channel occupying the collision physical resource only using the physical resource without collision exceeds a preset threshold may be predetermined according to a protocol or indicated by signaling.
For example, the signaling may include Radio Resource Control (RRC) signaling, Downlink Control Information (DCI), and the like.
In one implementation, the step S103 may include the steps of: selecting a processing mode for the physical channel or the physical signal according to the collision scenario, wherein the processing mode may be selected from: setting the data transmitted by the collided physical channel or physical signal on the collision physical resource to zero (as collision processing mode 1); canceling the data transmission of the physical channel or physical signal that is collided (referred to as collision processing mode 2); delaying the data transmission of the collided physical channel or physical signal (denoted as collision processing mode 3); and eliminating the conflict physical resource from the available physical resources of the physical channel or physical signal which is conflicted (the conflict processing mode is 4).
In the collision processing mode 1, the physical channel or physical channel with high resource occupation priority occupies the collision physical resource, and the physical channel or physical signal with low resource occupation priority considers that the data sent on the collision physical resource is 0. Specifically, when decoding a physical channel, if a conflicting physical resource of the physical channel is occupied by a physical resource having a higher priority of resource occupation, the content of the transmitted data is considered to be 0. Further, when detecting the signal, identifying whether a physical channel or a physical signal with higher priority for resource occupation occupies the conflicting physical resource, and marking the physical channel or the physical signal with higher priority for resource occupation. Further, the labeled LLRs do not participate in statistics when scaling (scaling) is performed on a Log Likelihood Ratio (LLR for short). Further, rate matching encounters marked LLRs and if it is a repeated bit (bit), no de-repetition is performed.
In the collision processing mode 2, on the collision physical resource, the physical channel or physical channel with high resource occupation priority occupies the collision physical resource, and the physical channel or physical signal with low resource occupation priority is not transmitted. That is, the transmission of the collided physical channel or physical channel at the current frame is canceled.
In the collision processing mode 3, on the collision physical resource, the physical channel or physical channel with high resource occupation priority occupies the collision physical resource, and the physical channel or physical signal with low resource occupation priority delays to be sent until the maximum delay time is reached and then cancels. Specifically, the scheduler at the transmitting end reschedules the physical channel whose transmission is canceled and the transmission timing of the physical signal. For example, the bottom layer scheduling of the transmitting end is cancelled, which means that a data packet is not transmitted, and retransmission is performed at a high layer. Further, if the collided physical channel or physical signal is not successfully transmitted after the delay time reaches the maximum delay time, the transmission of the collided physical channel or physical signal is cancelled.
In the collision processing method 4, the physical resources that are collided with for the collided physical channel are not used for transmission, and the physical resources that can be transmitted by the collided physical channel are considered to be reduced. That is, the physical channel or physical channel with high resource occupation priority occupies the conflicting physical resource, and the physical channel or physical signal with low resource occupation priority directly excludes the conflicting physical resource from the available physical resource.
Therefore, for the transmitting end, by adopting the embodiment, when physical resource conflicts occur due to scheduling of different physical channels or physical signals, the data transmission mechanism provided by the scheme of the invention can ensure that the data carried by the most important physical channel or physical channel is preferentially transmitted, and reasonably processes other conflicting physical channels and physical signals. Specifically, for a plurality of physical channels or physical signals in which collisions occur, it is preferable to transmit only the physical channel or physical signal of which priority is the highest, using the physical resource. Further, for other physical channels or physical signals which are collided, processing logic is determined in a targeted manner according to a specific collision scenario, so that the physical channels or physical signals which are collided are ensured to be processed most appropriately.
Fig. 2 is a flowchart of a data transmission method for enhancing a coverage scenario according to a second embodiment of the present invention.
This embodiment may be performed by a Receiver (Rx for short), which is adapted to receive data in an enhanced coverage scenario. The data may be carried by a physical channel or a physical signal. The receiving end may include a user equipment. Specifically, the present embodiment may be executed by a chip having a data transmission function in the user equipment, and may also be executed by a baseband chip in the user equipment.
Specifically, referring to fig. 2, the data transmission method for enhancing the coverage scenario according to this embodiment may include the following steps:
step S201, determining a conflict physical resource according to scheduling information, wherein the conflict physical resource refers to a physical resource occupied by a plurality of physical channels or physical signal indications at the same time;
step S202, receiving data transmitted by the conflicted physical resource, wherein the received data is a physical channel or a physical signal with the highest priority occupied by the resource in the plurality of physical channels or physical signals;
step S203, determining a data transmission result of the remaining physical channels or physical signals in the plurality of physical channels or physical signals on the collision physical resource according to the collision scenario.
Those skilled in the art understand that the steps S201 to S203 can be regarded as execution steps corresponding to the steps S101 to S103 described in the above embodiment shown in fig. 1, and the two steps are complementary in specific implementation principle and logic. Therefore, the explanation of the terms in this embodiment can refer to the description of the embodiment shown in fig. 1, and will not be repeated here.
In step S201, similar to the transmitting end, the receiving end also marks all physical channels or physical signals allocated on each physical resource according to the scheduling information to determine the conflicting physical resource.
In a specific implementation, the different types of the physical channels or physical signals occupying the conflicting physical resources are indicated at the same time, whether the physical channels or physical signals occupying the conflicting physical resources are repeated for multiple TTIs is indicated, and/or when the code rate sent by the physical channels occupying the conflicting physical resources only using the non-conflicting physical resources exceeds a preset threshold is indicated, the method may correspond to different conflicting scenarios.
Further, the collision scenario and the association relationship indicating the type of the physical channel or the physical signal occupying the collision physical resource, indicating whether the physical channel or the physical signal occupying the collision physical resource is repeated for multiple TTIs, and/or indicating whether the code rate sent by the physical channel occupying the collision physical resource only using the non-collision physical resource exceeds a preset threshold may be predetermined according to a protocol or indicated by a signaling.
In one implementation, the step S203 may include the steps of: selecting a determination mode of the data transmission result according to the collision scenario, wherein the determination mode may be selected from: determining that data transmitted by the collided physical channel or physical signal on the collided physical resource is zero (corresponding to collision processing mode 1); determining that the collided physical channel or physical signal does not transmit data on the collided physical resource (corresponding to collision handling modes 2 and 3); and determining that the collided physical channel or physical signal is not subjected to data transmission (corresponding to a collision processing mode 4).
In a specific implementation, when the collision processing mode 1 is selected to process collided physical channels or physical signals, when performing rate matching, LLR weighting and/or retransmission data combining on the collided physical channels, LLRs corresponding to the collided physical resources may be removed.
Specifically, the signal detection stage may determine that the signal detection result LLR of the physical channel being collided is 0.
Further, in the rate matching and retransmission combining process, those whose signal detection LLR is 0 do not participate in the calculation when performing the combining.
In a specific implementation, when the collision processing modes 2 and 3 are selected, the total number of physical resources of the collided physical channel may be recalculated, and the code rate may be recalculated, to verify whether the code rate exceeds the preset threshold, and when the code rate does not exceed the preset threshold, the data may be received according to the updated physical resources after collision.
In one implementation, when collision handling mode 4 is selected, the physical channel or physical signal may be handled according to unsuccessful reception.
Therefore, for the receiving end, by adopting the embodiment, when physical resources conflict occurs due to scheduling of different physical channels or physical signals, the data transmission mechanism provided by the scheme of the invention can receive the data carried by the most important physical channel or physical signal in the first time, and determine the data transmission result of other physical channels or physical signals which are conflicted in accordance with the transmitting end.
Fig. 3 is a schematic structural diagram of a data transmission apparatus for enhancing coverage scenes according to a first embodiment of the present invention. Those skilled in the art understand that the data transmission apparatus 3 for enhancing coverage scenario described in this embodiment may be used to implement the method technical solution described in the embodiment of fig. 1.
Specifically, referring to fig. 3, the data transmission apparatus 3 for enhancing coverage scenes according to the present embodiment may include: a determining module 31, configured to determine a conflicting physical resource according to scheduling information, where the conflicting physical resource refers to a physical resource that is simultaneously occupied by multiple physical channels or physical signal indications; a transmission module 32, configured to transmit the physical channel or the physical signal with the highest resource occupation priority among the multiple physical channels or physical signals using the conflicting physical resource, where the conflicting physical resource is occupied by the physical channel or the physical signal with the highest resource occupation priority; a processing module 33, configured to process data transmission of remaining physical channels or physical signals in the plurality of physical channels or physical signals on the collision physical resource according to a collision scenario.
For more details of the working principle and the working mode of the data transmission apparatus 3 for enhancing coverage scenes, reference may be made to the related description in fig. 1, and details are not repeated here.
Fig. 4 is a schematic structural diagram of a data transmission apparatus for enhancing coverage scenes according to a second embodiment of the present invention. Those skilled in the art understand that the data transmission device 4 for enhancing coverage scenes in this embodiment can be used to implement the method technical solution described in the embodiment of fig. 2.
Specifically, referring to fig. 4, the data transmission device 4 for enhancing coverage scenes according to the present embodiment may include: a first determining module 41, configured to determine a conflicting physical resource according to scheduling information, where the conflicting physical resource refers to a physical resource that is simultaneously occupied by multiple physical channels or physical signal indications; a receiving module 42, configured to receive data transmitted through the conflicting physical resource, where the received data is a physical channel or a physical signal with a highest priority occupied by a resource in the multiple physical channels or physical signals; a second determining module 43, configured to determine, according to a collision scenario, a data transmission result of remaining physical channels or physical signals in the plurality of physical channels or physical signals on the collision physical resource.
For more contents of the working principle and the working manner of the data transmission apparatus 4 for enhancing the coverage scenario, reference may be made to the related description in fig. 2, and details are not repeated here.
In a specific implementation, the data transmission device 3 for enhancing coverage scenes and the data transmission device 4 for enhancing coverage scenes may correspond to a processing chip having a data transmission function in a user equipment; or to a chip having a data processing function, such as a baseband chip; or the chip module group comprises a processing chip and corresponds to the user equipment; or to a chip module having a chip with data processing function, or to a user equipment.
An embodiment of the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and on which a computer program is stored, where the computer program, when executed by a processor, performs the steps of the data transmission method for enhancing an overlay scene provided in any of the above embodiments.
The embodiment of the present invention further provides another data transmission apparatus for enhancing a coverage scenario, which includes a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the steps of the data transmission method for enhancing a coverage scenario provided in the embodiment corresponding to fig. 1 or fig. 2 when executing the computer program.
In a specific implementation, each module/unit included in each apparatus and product described in the foregoing embodiments may be a software module/unit, may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit.
For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A data transmission method for enhancing coverage scenarios, comprising:
determining a conflict physical resource according to the scheduling information, wherein the conflict physical resource refers to a physical resource which is indicated to be occupied by a plurality of physical channels or physical signals at the same time;
according to the resource occupation priorities corresponding to the plurality of physical channels or physical signals, determining that the physical channel or physical signal with the highest resource occupation priority successfully occupies the conflict physical resource;
processing data transmission of remaining physical channels or physical signals of the plurality of physical channels or physical signals on the collision physical resources according to a collision scenario;
wherein, the physical channels or physical signals which have conflicts are different and correspond to different conflict scenes;
recording remaining physical channels or physical signals of the plurality of physical channels or physical signals as collided physical channels or physical signals, wherein the processing data transmission of the remaining physical channels or physical signals of the plurality of physical channels or physical signals on the collided physical resources according to the collision scenario comprises:
selecting a processing mode for the physical channel or the physical signal according to the collision scene, wherein the processing mode is selected from the following processing modes:
zeroing out data transmitted by the collided physical channel or physical signal on the colliding physical resource;
canceling data transmission of the collided physical channel or physical signal;
delaying data transmission of the collided physical channel or physical signal;
and eliminating the conflict physical resource from the available physical resources of the physical channel or physical signal which is conflicted.
2. The data transmission method according to claim 1, wherein the indication of different types of physical channels or physical signals occupying the conflicting physical resources, the indication of whether the physical channels or physical signals occupying the conflicting physical resources are repeated for multiple TTIs, and/or the indication of whether the code rate transmitted by the physical channels occupying the conflicting physical resources using only non-conflicting physical resources exceeds a preset threshold corresponds to different conflict scenarios.
3. The data transmission method according to claim 1, wherein the transmission of the collided physical channel or physical signal is cancelled if the collided physical channel or physical signal is not successfully transmitted after the delay time reaches the maximum delay time.
4. A data transmission method for enhancing coverage scenarios, comprising:
determining a conflict physical resource according to the scheduling information, wherein the conflict physical resource refers to a physical resource which is simultaneously occupied by a plurality of physical channels or physical signal indications;
receiving data transmitted through the conflicting physical resource, wherein the received data is a physical channel or physical signal with highest priority occupied by resources in the multiple physical channels or physical signals;
determining a data transmission result of the remaining physical channels or physical signals in the plurality of physical channels or physical signals on the conflict physical resources according to a conflict scenario;
wherein, the physical channels or physical signals which have conflicts are different and correspond to different conflict scenes;
recording the remaining physical channels or physical signals of the plurality of physical channels or physical signals as collided physical channels or physical signals, wherein the determining the data transmission result of the remaining physical channels or physical signals of the plurality of physical channels or physical signals on the collided physical resources according to the collision scenario comprises:
selecting a determination mode of the data transmission result according to the conflict scene, wherein the determination mode is selected from the following modes:
determining that data transmitted by the collided physical channel or physical signal on the colliding physical resource is zero;
determining that the collided physical channel or physical signal does not transmit data on the colliding physical resources;
determining that the collided physical channel or physical signal is not in data transmission.
5. The method according to claim 4, wherein the indication of different types of physical channels or physical signals occupying the conflicting physical resources, the indication of whether the physical channels or physical signals occupying the conflicting physical resources are repeated for multiple TTIs, and/or the indication of whether the code rate transmitted by the physical channels occupying the conflicting physical resources using only non-conflicting physical resources exceeds a predetermined threshold corresponds to different conflict scenarios.
6. The data transmission method according to claim 4, further comprising:
when the selected determining mode is that the data transmitted by the collided physical channel on the collision physical resource is determined to be zero, and when the collided physical channel is subjected to rate matching, LLR weighting and/or retransmission data combination, LLRs corresponding to the collision physical resource are removed;
when the selected determining mode is that the collided physical channel or the physical signal is determined not to transmit data on the collided physical resource, recalculating the total number of the physical resources of the collided physical channel, recalculating the code rate, verifying whether the code rate exceeds a preset threshold, and receiving the data according to the updated physical resource after collision when the code rate does not exceed the preset threshold;
when the selected determination is that the collided physical channel or physical signal is determined not to transmit data on the collided physical resource, processing according to the unsuccessfully received physical channel or physical signal.
7. A data transmission apparatus for enhancing a coverage scene, comprising:
a determining module, configured to determine a conflicting physical resource according to scheduling information, where the conflicting physical resource is a physical resource that is simultaneously occupied by multiple physical channels or physical signal indications;
a transmission module, configured to determine, according to resource occupation priorities corresponding to the multiple physical channels or physical signals, that a physical channel or physical signal with a highest resource occupation priority successfully occupies the conflicting physical resource;
a processing module, configured to process data transmission of remaining physical channels or physical signals in the plurality of physical channels or physical signals on the collision physical resource according to a collision scenario;
wherein, the physical channels or physical signals which have conflict are different and correspond to different conflict scenes;
recording remaining physical channels or physical signals of the plurality of physical channels or physical signals as collided physical channels or physical signals, the processing module performing the steps of:
selecting a processing mode for the physical channel or the physical signal according to the conflict scene, wherein the processing mode is selected from the following modes:
zeroing out data transmitted by the collided physical channel or physical signal on the colliding physical resource;
canceling the data transmission of the collided physical channel or physical signal;
delaying data transmission of the collided physical channel or physical signal;
and eliminating the conflict physical resource from the available physical resources of the physical channel or physical signal which is conflicted.
8. A data transmission apparatus for enhancing a coverage scene, comprising:
a first determining module, configured to determine a conflicting physical resource according to scheduling information, where the conflicting physical resource is a physical resource that is simultaneously occupied by multiple physical channels or physical signal indications;
a receiving module, configured to receive data transmitted through the conflicting physical resource, where the received data is a physical channel or a physical signal with a highest priority occupied by a resource in the multiple physical channels or physical signals;
a second determining module, configured to determine, according to a collision scenario, a data transmission result of remaining physical channels or physical signals in the plurality of physical channels or physical signals on the collision physical resource;
wherein, the physical channels or physical signals which have conflicts are different and correspond to different conflict scenes;
recording remaining physical channels or physical signals of the plurality of physical channels or physical signals as collided physical channels or physical signals, the second determining module performing the steps of:
selecting a determination mode of the data transmission result according to the collision scene, wherein the determination mode is selected from the following modes:
determining that data transmitted by the collided physical channel or physical signal on the collision physical resource is zero;
determining that the collided physical channel or physical signal does not transmit data on the colliding physical resources;
determining that the collided physical channel or physical signal is not in data transmission.
9. A computer-readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having a computer program stored thereon, the computer program, when being executed by a processor, performing the steps of the method according to any one of claims 1 to 3 or 4 to 6.
10. A data transmission device for enhancing coverage scenes, comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor, when executing the computer program, executes the steps of the method according to any one of claims 1 to 3 or 4 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110130544.XA CN112969197B (en) | 2021-01-29 | 2021-01-29 | Data transmission method and device for enhancing coverage scene and computer-readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110130544.XA CN112969197B (en) | 2021-01-29 | 2021-01-29 | Data transmission method and device for enhancing coverage scene and computer-readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112969197A CN112969197A (en) | 2021-06-15 |
| CN112969197B true CN112969197B (en) | 2022-09-02 |
Family
ID=76272560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110130544.XA Active CN112969197B (en) | 2021-01-29 | 2021-01-29 | Data transmission method and device for enhancing coverage scene and computer-readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112969197B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264031A (en) * | 2010-05-25 | 2011-11-30 | 中兴通讯股份有限公司 | Method and system for distributing radio resources for multicast control channel |
| CN108476481A (en) * | 2016-02-02 | 2018-08-31 | 夏普株式会社 | Terminal installation and method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118236B (en) * | 2009-12-31 | 2014-04-02 | 华为技术有限公司 | Feedback method and feedback device based on competitive resource |
| US9763210B2 (en) * | 2014-01-30 | 2017-09-12 | Intel Corporation | Evolved node-B and user equipment and methods for operation in a coverage enhancement mode |
| CN105992372B (en) * | 2015-01-27 | 2019-09-13 | 上海诺基亚贝尔股份有限公司 | Method for avoiding the resource contention in physical uplink control channel |
| US10334617B2 (en) * | 2015-06-16 | 2019-06-25 | Qualcomm Incorporated | System information for enhanced machine type communication |
| US10440706B2 (en) * | 2016-08-08 | 2019-10-08 | Sharp Kabushiki Kaisha | Systems and methods for PUCCH resource allocation and HARQ-ACK reporting with processing time reduction |
| JP6636587B2 (en) * | 2017-09-08 | 2020-01-29 | 華碩電腦股▲ふん▼有限公司 | Method and apparatus for channel utilization in unlicensed spectrum considering beamforming transmission in wireless communication systems |
| US10624118B2 (en) * | 2017-12-01 | 2020-04-14 | Lg Electronics Inc. | Method and apparatus for uplink transmission and reception in a wireless communication system |
| US10880950B2 (en) * | 2018-02-16 | 2020-12-29 | Intel Corporation | Flexible resource allocation for even further enhanced machine type communication (EFEMTC) |
| CN110944390B (en) * | 2018-09-21 | 2022-04-22 | 展讯通信（上海）有限公司 | Resource conflict processing method and device, storage medium and user equipment |
-
2021
- 2021-01-29 CN CN202110130544.XA patent/CN112969197B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264031A (en) * | 2010-05-25 | 2011-11-30 | 中兴通讯股份有限公司 | Method and system for distributing radio resources for multicast control channel |
| CN108476481A (en) * | 2016-02-02 | 2018-08-31 | 夏普株式会社 | Terminal installation and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112969197A (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107734678B (en) | Information transmission method, device and system | |
| CN115001631B (en) | Improved multicast and unicast in new radio vehicle-to-everything (V2X) communications | |
| TWI767048B (en) | Wireless communication method performed by user terminal | |
| CN108781467B (en) | Method and device for determining length of contention window for idle channel evaluation | |
| US11178647B2 (en) | Signaling support for uplink reference signal transmission | |
| CN105790897B (en) | Method and equipment for hybrid automatic repeat request (HARQ) | |
| KR101913681B1 (en) | Data transmission method, device and system | |
| KR20160129053A (en) | Signal retransmission apparatus and method, and communication system | |
| CN113364568B (en) | Method, terminal and base station for sending uplink control information | |
| CN108476511B (en) | Random access method, device, base station and UE | |
| US20220150005A1 (en) | Channel or signal sending method and apparatus, and storage medium | |
| US20190394802A1 (en) | Dynamic start for transmission on unlicensed spectrum | |
| CN110612763A (en) | Method and device for transmitting information | |
| WO2018024946A1 (en) | Blind retransmissions over shared resources | |
| WO2016198107A1 (en) | Enabling time-overlapping communication using csma/ca and ofdma | |
| CN108401291B (en) | Method and device for data transmission | |
| CN112969197B (en) | Data transmission method and device for enhancing coverage scene and computer-readable storage medium | |
| CN113677017A (en) | Conflict processing method and device for uplink channel | |
| US11832090B2 (en) | Data transmission method, device, and storage medium | |
| US20220124690A1 (en) | Information processing method and device, equipment, and storage medium | |
| WO2021098741A1 (en) | Method for harq-ack transmission in nr-u, network device, and terminal device | |
| CN108633084B (en) | Data transmission method and device | |
| CN108631967B (en) | Data transmission method and device | |
| CN110547038B (en) | Communication system | |
| CN109804673B (en) | Discriminating between communication devices based on transmission power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |