CN114070481B

CN114070481B - Physical channel transmission method and equipment

Info

Publication number: CN114070481B
Application number: CN202010761145.9A
Authority: CN
Inventors: 闫志宇; 魏贵明; 徐菲; 杜滢; 刘晓峰; 焦慧颖; 沈霞
Original assignee: China Academy of Information and Communications Technology CAICT
Current assignee: China Academy of Information and Communications Technology CAICT
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2023-08-11
Anticipated expiration: 2040-07-31
Also published as: CN114070481A

Abstract

The application discloses a physical channel transmission method, which comprises the following steps: any one channel and at least one other channel in a set containing N (N is more than or equal to 2) channels have overlapping relation in time; determining the priority of N channels, wherein for any 2 channels of the same type, the priority of the channel in the first type HARQ retransmission state is higher than the priority of the channel in the second type HARQ retransmission state; the first type HARQ retransmission state is to disable HARQ retransmission based on HARQ-ACK; the second type of HARQ retransmission state is to enable HARQ-ACK based HARQ retransmission. The application also comprises a device for applying the method. The technical scheme of the application is particularly suitable for the problem of channel conflict in an earth-air or satellite communication system.

Description

Physical channel transmission method and equipment

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a method and apparatus for transmitting a physical channel.

Background

The NR system improves data transmission efficiency using a hybrid automatic repeat request (HARQ) mechanism. At the MAC layer, each cell has an HARQ entity, and uplink and downlink are independent. Each HARQ entity comprises a plurality of parallel HARQ processes. If the data receiver feeds back the HARQ demodulation result to the sender after detecting the received data as NACK, the data sender can dispatch and retransmit the HARQ process data, and if the decoding of the HARQ process information fails, the data receiver writes the HARQ process data into the HARQ buffer area, waits for the retransmission data block of the HARQ process, and combines and decodes the data of the retransmission data block and the data of the HARQ buffer area. For each downlink HARQ process, the terminal device (UE) transmits Acknowledgement (ACK) or non-acknowledgement (NACK) information to the base station according to the decoding result. The ACK and NACK information are collectively referred to as hybrid automatic repeat request acknowledgement information (HARQ-ACK). For each uplink HARQ process, the terminal equipment determines the HARQ-ACK state of the data of the same HARQ process number before according to new data indication (NDI, new Data Indicator) in uplink scheduling information sent by the base station.

The coverage range of ground-air communication and satellite communication is wider, if the HARQ process merging process based on HARQ-ACK feedback is still adopted in the ground-air communication and satellite communication, the service data transmission delay is greatly prolonged under the influence of the air propagation delay fed back by the HARQ-ACK information and the delay of the retransmission process of the HARQ process data. Such delays are unacceptable for some traffic data latency requirements. Therefore, in a communication system with long propagation delay in the air, such as low-altitude communication and satellite communication, HARQ-ACK feedback can be disabled. On the other hand, considering reliability of important data such as system configuration information, the HARQ-ACK feedback of part of HARQ processes needs to be reserved in the system.

For disabling HARQ retransmissions based on HARQ-ACKs, the data scheduler cannot adjust parameters of the retransmission schedule based on the real-time demodulation result. In order to ensure the performance, repeated transmission can be preconfigured for a plurality of times so as to improve the transmission performance.

In NR system design, if a terminal device has two or more channels on overlapping time resources that need to be simultaneously transmitted or received, and the terminal device does not have the capability of simultaneously transmitting or receiving these channels, it is necessary to determine a channel with a higher transmission or reception priority level according to the priority levels of these channels. If the channel for enabling the HARQ retransmission state based on the HARQ-ACK is discarded due to the lower priority, the transport block carried by the channel cannot acquire the HARQ retransmission combining gain for the preset times, which may cause the reliability of the transport block to be reduced, and affect the service quality of the terminal device.

Disclosure of Invention

The application provides a physical channel transmission method and equipment, which solve the problem of channel collision of different retransmission states and are particularly suitable for an earth-air or satellite communication system.

In a first aspect, the present application provides a physical channel transmission method, including the steps of:

in the set containing N (N is more than or equal to 2) channels, any one channel and at least one other channel have overlapping relation in time;

determining the priority of N channels, wherein for any 2 channels of the same type, the priority of the channel in the first type HARQ retransmission state is higher than the priority of the channel in the second type HARQ retransmission state;

the first type HARQ retransmission state is to disable HARQ retransmission based on HARQ-ACK;

the second type of HARQ retransmission state is to enable HARQ retransmission based on HARQ-ACK;

the kind of the channel comprises at least one of the following:

dynamically scheduled PDSCH; PDSCH semi-persistent scheduling; dynamically scheduled PUSCH; semi-persistent scheduled PUSCH.

Preferably, the N channels are all PUSCH, all PDSCH, or part of PUSCH and part of PUCCH.

In one embodiment of the application, the priority of the dynamically scheduled channel class is higher than the priority of the semi-persistently scheduled channel class.

In another embodiment of the present application, the priority of the semi-persistently scheduled channels of the first type of HARQ retransmission state is higher than the priority of the dynamically scheduled channels of the second type of HARQ retransmission state.

Preferably, when the N channels are uplink channels, the types of the channels further include: PUSCH without uplink control information. At this time, the priority of the PUSCH in the first type HARQ retransmission state is higher than or equal to the PUSCH which carries CSI and does not carry HARQ-ACK in the second type HARQ retransmission state in the N channels; and or: the priority of the PUSCH in the first type HARQ retransmission state is higher than or equal to the PUCCH which carries CSI and does not carry HARQ-ACK in the N channels.

Further preferably, M channels (M.ltoreq.N) are received in N channels according to the priority, and the other N-M channels are discarded; or, transmitting M channels in the N channels according to the priority, and discarding other N-M channels; or determining the actual transmission power of the N channels according to the priority, preferentially reducing the channel power of the low priority, and reducing the sum of the transmission power of the N channels.

The method according to any one embodiment of the first aspect of the present application, for a terminal device, includes the following steps:

The terminal equipment determines at least one set in at least one time unit, and determines the channel priority in the set;

and the terminal equipment receives the PDSCH, sends the PUSCH or the PUCCH according to the priority.

The method according to any one embodiment of the first aspect of the present application, for a network device, includes the following steps:

the network device determining at least one set in at least one time unit, in which set the channel priority is determined;

and the network equipment transmits PDSCH, receives PUSCH or PUCCH according to the priority.

In a second aspect, the present application further proposes a physical channel transmission device, using the method according to any one of the first aspects of the present application, the device determining at least one set in at least one time unit, wherein the channel priority is determined in the set.

Preferably, the device receives PDSCH, transmits PUSCH or PUCCH according to the priority.

Preferably, the device transmits PDSCH, receives PUSCH or PUCCH according to the priority.

The application also provides a physical channel transmission device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of the embodiments of the first aspect of the application.

The application also proposes a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any one of the embodiments of the first aspect of the application.

The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:

by adopting the scheme of the application, if the terminal equipment has two or more channels on overlapped time resources to be transmitted or received simultaneously, the terminal equipment does not have the capability of transmitting or receiving the channels simultaneously, and the data transmission priority in the HARQ retransmission state based on HARQ-ACK is set to be higher, so that the reliability and the time delay characteristic of the data transmission can be ensured, and the service quality requirement of the terminal equipment and the efficiency of the system can be met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation. In the drawings:

FIG. 1 is a flow chart of an embodiment of the method of the present application;

FIG. 2 is a flow chart of an embodiment of the method of the present application for a network device;

FIG. 3 is a flow chart of an embodiment of the method of the present application for a terminal device;

FIG. 4 is a schematic diagram of an embodiment of a network device;

FIG. 5 is a schematic diagram of an embodiment of a terminal device;

fig. 6 is a schematic structural diagram of a network device according to another embodiment of the present application;

fig. 7 is a block diagram of a terminal device according to another embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The application provides a physical channel transmission method and equipment, which are mainly used for systems with larger propagation delay of a ground-air communication or satellite communication wireless link.

The application divides the HARQ retransmission states corresponding to the PDSCH/PUSCH transmitted by each HARQ process into two types:

first type HARQ retransmission state: disabling HARQ retransmission based on HARQ-ACK;

The second type of HARQ retransmission state: HARQ retransmission based on HARQ-ACK is enabled.

For HARQ transmission in the first type of HARQ retransmission state, the data scheduler cannot adjust parameters of retransmission scheduling based on the HARQ-ACK of the real-time demodulation result. In order to ensure that the performance of the HARQ process in the first type HARQ retransmission state is equivalent to that of the HARQ process in the second type HARQ retransmission state, multiple repeated transmissions can be preconfigured for the HARQ process in the first type HARQ retransmission state so as to improve the transmission performance of the HARQ process.

For channels of the same type, if the HARQ retransmission states are not distinguished, the first type HARQ retransmission state and the second type HARQ retransmission state use the same priority level, and the transmission block in the first type HARQ retransmission state may not acquire the characteristic of the HARQ retransmission combining gain due to the lower priority level, so that the reliability of the transmission block in the first type HARQ retransmission state does not meet the required result, and the service quality of the terminal device is affected.

Therefore, when two or more channels are required to be simultaneously transmitted or received on the overlapped time resources, the data transmission of the HARQ process in the first type HARQ retransmission state and the data transmission of the HARQ process in the second type HARQ retransmission state have different priority levels, so that the service quality requirement of the terminal equipment can be met, and the system communication efficiency is improved.

The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a flow chart of an embodiment of the method of the present application.

The application provides a physical channel transmission method, which comprises the following steps 101-103:

step 101, determining a channel set with an overlapping relation;

the set is a set of uplink channels or a set of downlink channels, and any one channel and at least one other channel in the set are overlapped in time; or all channels overlap in time.

And if the set is a set of uplink channels, the set comprises at least one of PUCCH and PUSCH. Optionally, the PUCCH or PUSCH carries CSI information. Optionally, the PUSCH is dynamically scheduled or based on configuration.

If the set is a downlink channel set, the set includes at least one of a dynamically scheduled PDSCH and a semi-persistent scheduled PDSCH.

102, determining channel priority according to HARQ retransmission state;

the kind of the channel comprises at least one of the following: dynamically scheduled PDSCH; PDSCH semi-persistent scheduling; dynamically scheduled PUSCH; semi-persistent scheduled PUSCH.

Preferably, when the N channels are uplink channels, the types of the channels further include: PUSCH without uplink control information.

Within the first set of channels, only M (M.ltoreq.N) of the channels can be processed (transmitted or received), other N-M channels being discarded, subject to the processing power of the terminal device. Or limited by the maximum transmit power of the terminal device, the terminal device has to reduce the transmit power of part of the channels. In this way, the information carried by the discarded or reduced transmit power channels in the first set of channels will be affected.

In the embodiment of the application, the terminal equipment selects and processes (receives or transmits) M channels with higher priority among the N channels, the information carried in the M channels has larger influence on the service performance and communication efficiency of the terminal equipment, and the processing capacity or the transmitting power of the terminal equipment is distributed to the channels with higher priority as much as possible, so that the service quality requirement of the terminal equipment can be ensured, and the communication efficiency of the system is improved.

In order to achieve the above prioritization of channels, the priority between channels should meet at least one of the following priority rules:

priority rule 1: the priority of the channel in the first type HARQ retransmission state is higher than that of the channel in the second type HARQ retransmission state;

in one embodiment of the present application, the priority of the semi-persistently scheduled channels of the first type of HARQ retransmission state is higher than the priority of the dynamically scheduled channels of the second type of HARQ retransmission state.

Aiming at PDSCH or PUSCH which does not carry uplink control information, retransmission scheduling strategies corresponding to two HARQ retransmission states are different, the available HARQ combining gains are also different, and further, the available data transmission target performances of the two modes are also different. For the first type of HARQ retransmission state, the network device may have completed all K repeated transmission schedules for the transport block before the demodulation result of PUSCH/PDSCH is ACK/NACK. The network device expects that the K PUSCH/PDSCH repeated transmissions may meet the target demodulation performance for the corresponding data block. If PUSCH/PDSCH transmissions are discarded or transmit power is reduced in the first type HARQ retransmission state, the network device cannot achieve the target performance requirement by scheduling retransmission of the relevant transport block in real time. Particularly, in a communication system with larger air propagation delay such as satellite communication or low-altitude communication, the network equipment can schedule the repeated transmission of the PUSCH/PDSCH for K times through a single PDCCH, so that service transmission delay caused by scheduling data retransmission based on HARQ-ACK feedback can be avoided. If the target performance of the transport block is not met because part of the transmissions in the K repeated transmissions are discarded or the transmission power is reduced due to overlapping with other channels, the network device reschedules the retransmission of the transport block and experiences a larger propagation delay effect, so that the delay characteristic of the transport block cannot meet the requirement. For the second type of HARQ retransmission state, the network device may decide whether to initiate retransmission scheduling for the corresponding transport block and decide the scheduled retransmission resource through whether the demodulation result of the PUSCH/PDSCH is ACK or NACK. And for the PUSCH/PDSCH which is not correctly demodulated, determining a scheduling strategy for retransmitting the PUSCH/PDSCH according to the target service performance and the current demodulation result, and ensuring that the transmission block reaches the preset target demodulation performance after K times of repeated transmission. The performance requirements of the transport blocks for PUSCH/PDSCH transmissions using the second type of HARQ retransmission state can also withstand the data transmission delay incurred by retransmission scheduling. Therefore, the priority of the channel in the first type HARQ retransmission state is higher than that of the channel in the second type HARQ retransmission state, so that the reliability and the time delay characteristic of data transmission in the first type HARQ retransmission state can be ensured, and the service quality requirement of the terminal equipment can be met.

Priority rule 2: the priority of the dynamically scheduled channel class is higher than the priority of the semi-persistently scheduled channel class.

It should be noted that the priority rule may be used in combination to determine M channels with higher priority from among the N channels. Take the example that the first set of channels is downlink channels. PDSCH channels are classified into dynamically scheduled PDSCH and semi-persistently scheduled PDSCH. The dynamically scheduled PDSCH has two types of HARQ retransmission states, namely a first type HARQ retransmission state and a second type HARQ retransmission state, and the semi-continuously scheduled PDSCH also has two types of HARQ retransmission states, namely the first type HARQ retransmission state and the second type HARQ retransmission state.

When the 1 st priority rule is applied first and then the 2 nd priority rule is applied, that is, when determining the priority order of each channel in the first channel set, the following rule is applied: firstly, determining the priority of the HARQ retransmission state according to whether the HARQ retransmission state is a first type HARQ retransmission state or a second type HARQ retransmission state, then determining the priority of each PDSCH in the first type HARQ retransmission state according to the dynamic scheduling or the semi-persistent scheduling, and determining the priority of each PDSCH in the second type HARQ retransmission state according to the dynamic scheduling or the semi-persistent scheduling. I.e. the priority of the channels in the first set of channels satisfies:

Dynamically scheduled channel in the first type HARQ retransmission state > semi-persistent scheduled channel in the first type HARQ retransmission state > dynamically scheduled channel in the second type HARQ retransmission state > semi-persistent scheduled channel in the second type HARQ retransmission state. By adopting the priority level determining mode, no matter whether the channel is dynamically scheduled or semi-continuously scheduled, the problem that the transmission of the channel is not discarded or the transmission power is not reduced under the first type HARQ retransmission state is preferentially met, the problem that the channel which enables the HARQ retransmission state based on HARQ-ACK is discarded due to lower priority, and then the transmission block carried by the channel cannot acquire the HARQ retransmission merging gain of the preset times can be avoided. The reliability of the transmission block is improved, and the service quality of the terminal equipment is ensured.

When the 2 nd priority rule is applied first and then the 1 st priority rule is applied, that is, when determining the priority order of each channel, the following rule is applied: firstly, determining the priority of the PDSCH according to whether the PDSCH belongs to dynamic scheduling or semi-persistent scheduling, then determining the priority of each PDSCH of the dynamic scheduling according to whether the HARQ retransmission state of each PDSCH is a first type HARQ retransmission state or a second type HARQ retransmission state, and determining the priority of each PDSCH of the semi-persistent scheduling according to whether the HARQ retransmission state of each PDSCH is the first type HARQ retransmission state or the second type HARQ retransmission state. The priority relationship between channels is:

Channel in the first type HARQ retransmission state of dynamic scheduling > channel in the second type HARQ retransmission state of dynamic scheduling > channel in the first type HARQ retransmission state of semi-persistent scheduling > channel in the second type HARQ retransmission state of semi-persistent scheduling. By adopting the priority level determining mode, the requirement that the transmission of the dynamic scheduling channel is not discarded or the transmission power is reduced is preferably met. Secondly, in a plurality of channels with the same scheduling mode, the transmission of the channel in the first type HARQ retransmission state is preferably not discarded or the transmission power is not reduced, so that the influence of the overlapping transmission of the channels in the semi-continuous scheduling on the dynamically scheduled channel can be avoided, and the transmission power is forced to be discarded or reduced. Further, in the channels with the same scheduling mode, the problem that the channel for enabling the HARQ retransmission state based on the HARQ-ACK is discarded or the transmission power is reduced due to the lower priority, and then the transmission block carried by the channel cannot acquire the HARQ retransmission merging gain of the preset times is solved. The reliability of the transmission block is improved, and the service quality of the terminal equipment is ensured. Therefore, the combined use of the 1 st priority rule and the 2 nd priority rule restricts the 1 st priority rule to the same kind of channel.

Priority rule 3: the priority of the uplink channel in the first HARQ retransmission state is not lower than that of the uplink channel which carries CSI and does not carry HARQ-ACK.

In the embodiment of the application, the priority of the PUSCH in the first type HARQ retransmission state is higher than or equal to the PUSCH which carries CSI and does not carry HARQ-ACK in the second type HARQ retransmission state in the N channels; and or: the priority of the PUSCH in the first type HARQ retransmission state is higher than or equal to the PUCCH which carries CSI and does not carry HARQ-ACK in the N channels.

The CSI information indicates status information of a downlink channel measured by the terminal device, and the terminal device feeds back the information to the network device, which is beneficial for the network device to accurately and effectively schedule wireless resources for downlink data transmission of the terminal device. In the existing system design, the accuracy of downlink data scheduling is ensured by sacrificing the performance of the PUSCH which does not carry uplink control information. I.e. PUSCH/PUCCH carrying CSI and not carrying HARQ-ACK has a higher priority than PUSCH not carrying uplink control information. In this way, the PUSCH not carrying uplink control information may be dropped as a low priority channel or the transmit power may be reduced. The discarded or reduced transmission power PUSCH may correspond to the first type HARQ retransmission state or the second type HARQ retransmission state. If the PUSCH performance of the second type HARQ retransmission state affected by the processing capability of the terminal device or the maximum transmission power limit of the terminal device can be improved by initiating retransmission scheduling for the corresponding transport block, the PUSCH/PUCCH carrying CSI and not carrying HARQ-ACK is set to have a higher priority than the PUSCH not carrying uplink control information in the prior art, which does not greatly affect the PUSCH transmission performance. However, if the PUSCH in the first type HARQ retransmission state is affected by the processing capability of the terminal device or the maximum transmission power limit of the terminal device, and considering the larger propagation delay effect, the network device schedules the retransmission of the transport block may cause that the delay characteristic of the transport block cannot meet the requirement, and the effect of discarding or reducing the transmission power on the PUSCH in the first type HARQ retransmission state in the first channel set is very large. Therefore, the priority of the channel in the first type HARQ retransmission state is configured to be higher than or equal to the PUSCH carrying CSI and not carrying HARQ-ACK/the PUCCH carrying CSI and not carrying HARQ-ACK, which is beneficial to ensuring the service quality requirement of the PUSCH in the first type HARQ retransmission state and improving the system communication efficiency.

The priority rule is a rule applied when M channels are determined among N channels, but the priority rule for determining M channels among N channels is not limited thereto, and may include other rules. For example, when the channels in the set are all uplink channels, the method further includes a PUCCH with a higher priority than a PUCCH carrying HARQ-ACK/SR (Scheduling request )/LRR (link recovery request, link recovery request), and a PUSCH carrying HARQ-ACK; the PUCCH and PUSCH have higher priority than SRS (Sounding Reference Signal ), and the like.

And 103, carrying out receiving and transmitting processing on the N channels according to the channel priority, and discarding or reducing the channel power with low priority.

Receiving M channels (M is less than or equal to N) in N channels according to the priority, and discarding other N-M channels; or, transmitting M channels in the N channels according to the priority, and discarding other N-M channels; or determining the actual transmission power of the N channels according to the priority, preferentially reducing the channel power of the low priority, and reducing the sum of the transmission power of the N channels.

Fig. 2 is a flow chart of an embodiment of the method of the present application for a network device.

The method according to any one of the embodiments of the first aspect of the present application, for a network device, includes the following steps 201 to 204:

step 201, the network device determines at least one set in at least one time unit;

specifically, a first channel set is determined, any one of the first channel set overlaps with other at least one channel in time, and the first channel set comprises N channels, wherein N is more than 2;

Optionally, the location and length of the time units are preset, e.g. the time units are time slots.

The channels are classified into 2 types, the first type of HARQ retransmission state is to enable HARQ retransmission based on HARQ-ACK, and the second type of HARQ retransmission state is to enable HARQ retransmission based on HARQ-ACK.

Step 202, the network device determines the channel priority in the set;

optionally, the relation between the priority of the channel in the first type HARQ retransmission state and the priority of the channel in the second type HARQ retransmission state includes that the priority of the channel in the first type HARQ retransmission state is higher than the priority of the channel in the second type HARQ retransmission state.

Further optionally, the relation between the priority of the channel in the first type HARQ retransmission state and the priority of the PUSCH carrying CSI and not carrying HARQ-ACK includes that the priority of the channel in the first type HARQ retransmission state is higher than or equal to the priority of the PUSCH carrying CSI and not carrying HARQ-ACK;

further optionally, the relation between the priority of the channel in the first type HARQ retransmission state and the priority of the PUCCH carrying CSI and not carrying HARQ-ACK includes that the priority of the channel in the first type HARQ retransmission state is higher than or equal to the priority of the PUCCH carrying CSI and not carrying HARQ-ACK.

Further optionally, the priority level further includes: channel in dynamic scheduling first type HARQ retransmission state > channel in dynamic scheduling second type HARQ retransmission state > channel in semi-persistent scheduling first type HARQ retransmission state > channel in semi-persistent scheduling second type HARQ retransmission state.

Further optionally, the priority level further includes: dynamically scheduled channel in the first type HARQ retransmission state > semi-continuously scheduled channel in the first type HARQ retransmission state > dynamically scheduled channel in the second type HARQ retransmission state > semi-continuously scheduled channel in the second type HARQ retransmission state.

Step 203, the network device sends first configuration information, which is used for indicating a priority rule or a priority level;

203A, sending first configuration information, where the first configuration information is used to indicate a priority rule, and specifically includes any one or more of the following (1), (2), and (3):

(1) Information indicating whether to execute priority 1 rule

The first configuration information may not be transmitted to the terminal device when the network device determines that PUSCH/PDSCH transmissions of the first type HARQ retransmission state are discarded or that the transmit power is reduced without affecting the reliability or latency characteristics requirements of the associated transport block. At this time, the priority of the channel in the first type HARQ retransmission state is the same as the priority of the channel in the second type HARQ retransmission state; otherwise, if the terminal equipment acquires the first configuration information, determining that the priority of the channel in the first type HARQ retransmission state is higher than the priority of the channel in the second type HARQ retransmission state. Or the network device indicates whether the priority of the channel in the first type of HARQ retransmission state is higher or lower than the priority of the channel in the second type of HARQ retransmission state in the first configuration information or equal. Based on the first configuration information, the network device can determine the ordering rule of the priority between the channel in the first type HARQ retransmission state and the channel in the second type HARQ retransmission state according to the scheduling strategies and the service performance requirements of different HARQ retransmission states, so that the service quality requirements and the scheduling flexibility of the terminal device are ensured, and the communication quality and the communication efficiency of the system are improved.

(2) Information indicating whether to execute priority 2 rule

The PDSCH priority order related to the various combinations of the dynamic scheduling, the semi-persistent scheduling, the first type HARQ retransmission state and the second type HARQ retransmission state may be configured by the network device to the terminal device through the first configuration information. The network device can determine various channel priority levels according to the scheduling strategies and business service performance requirements of different HARQ retransmission states, dynamic scheduling and semi-persistent scheduling strategies and business service targets, so that the service quality requirements and scheduling flexibility of the terminal device are met to the maximum extent, and the communication quality and efficiency of the system are improved.

(3) Information indicating whether to execute priority 3 rule

The network device may indicate, according to the first configuration information, whether the priority of the channel in the first type HARQ retransmission state is higher or lower than the priority of the PUSCH/PUCCH carrying CSI information, or equal, respectively, according to whether the PUSCH transmission in the first type HARQ retransmission state is discarded or the transmission power is reduced to affect the reliability or the delay characteristic of the relevant transport block, and whether the PUSCH/PUCCH carrying CSI and not carrying HARQ-ACK is discarded or the transmission power is reduced to affect the accuracy of downlink data scheduling. Based on the first configuration information, the network device can determine the priority between the channel in the first type HARQ retransmission state and the PUSCH carrying the CSI/the PUCCH carrying the CSI according to the scheduling strategy and the business service performance requirement of the HARQ retransmission state of the PUSCH, so that the service quality requirement and the scheduling flexibility of the terminal device are ensured, and the communication quality and the communication efficiency of the system are improved.

203B, or, the first configuration information is used to indicate a priority level, where the priority level is used to indicate at least one of:

the relation between the priority of the channel in the first type HARQ retransmission state and the priority of the channel in the second type HARQ retransmission state;

priority relation of dynamically scheduled channels and semi-continuously scheduled channels;

priority relation between channel in first type HARQ retransmission state and PUSCH carrying CSI and not carrying HARQ-ACK;

priority of the channel in the first type HARQ retransmission state is related to priority of PUCCH carrying CSI and not carrying HARQ-ACK.

And the priority relation of the channel is determined according to the combination of the priority relations.

Step 204, the network device sends PDSCH, receives PUSCH or PUCCH according to the priority.

M (M is less than or equal to N) channels transmitted or received by the terminal equipment in the first channel set are determined according to the priority level; or determining the transmission power of the terminal equipment for transmitting the first channel set according to the priority level.

Fig. 3 is a flow chart of an embodiment of the method of the present application for a terminal device.

Step 301, the terminal device determines at least one set in at least one time unit;

determining a first channel set, wherein any one of the first channel set overlaps with at least one other channel in time, and the first channel set comprises N channels, and N is more than or equal to 2;

the terminal device determines that the first set of channels may be accomplished by receiving configuration and/or scheduling information of the network device. The first channel set is a set of uplink channels or a set of downlink channels, and any one channel and at least one other channel in the first channel set overlap in time; or all channels overlap in time. If the first channel set is a set of uplink channels, the first channel set includes at least one of PUCCH and PUSCH. Optionally, the PUCCH or PUSCH carries CSI information. Optionally, the PUSCH is dynamically scheduled or based on configuration. If the first channel set is a downlink channel set, the first channel set includes at least one of a dynamically scheduled PDSCH and a semi-persistently scheduled PDSCH.

Step 302, the terminal equipment receives configuration information and determines a priority rule;

The priority level may be determined by the terminal device through first configuration information.

Step 303, the terminal equipment determines the channel priority in the set;

in the embodiment of the invention, the terminal equipment selects and processes (receives or transmits) M channels with higher priority, the information carried in the M channels has larger influence on the service performance and the communication efficiency of the terminal equipment, and the processing capacity or the transmitting power of the terminal equipment is distributed to the channels with higher priority as much as possible, so that the service quality requirement of the terminal equipment can be ensured, and the communication efficiency of the system is improved.

The priority level includes at least one of:

the priority of the channel in the first type HARQ retransmission state is higher than that in the second type HARQ retransmission state; the first type HARQ retransmission state is to enable HARQ retransmission based on HARQ-ACK, and the second type HARQ retransmission state is to enable HARQ retransmission based on HARQ-ACK;

the priority of the channel in the first type HARQ retransmission state is higher than or equal to the PUSCH which carries CSI and does not carry HARQ-ACK;

the priority of the channel in the first type HARQ retransmission state is higher than or equal to PUCCH carrying CSI and not carrying HARQ-ACK.

Optionally, the terminal device determines the priority level by receiving first configuration information.

Optionally, the priority level further includes: channel in dynamic scheduling first type HARQ retransmission state > channel in dynamic scheduling second type HARQ retransmission state > channel in semi-persistent scheduling first type HARQ retransmission state > channel in semi-persistent scheduling second type HARQ retransmission state

Optionally, the priority level further includes: the channel dynamically scheduled in the first type HARQ retransmission state is larger than the channel semi-continuously scheduled in the first type HARQ retransmission state is larger than the channel dynamically scheduled in the second type HARQ retransmission state is larger than the channel semi-continuously scheduled in the second type HARQ retransmission state.

The priority of the channel in the first type HARQ retransmission state in the first channel set is higher than that of the channel in the second type HARQ retransmission state, so that the reliability and the time delay characteristic of data transmission in the first type HARQ retransmission state can be ensured, and the service quality requirement of the terminal equipment can be met.

Step 304, the terminal device receives PDSCH, sends PUSCH or PUCCH according to the priority.

Therefore, the terminal equipment determines M (M is less than or equal to N) channels to be received in the N channels according to the priority level; or determining to transmit M (M is less than or equal to N) channels in the N channels according to the priority level; or determining the transmission power of the N channels according to the priority level.

The priority level is used to determine that M (M.ltoreq.N) channels are received in the N channels, including discarding other N-M channels.

The priority level is used to determine that transmitting M (M.ltoreq.N) channels of the N channels includes dropping the N-M channels.

The priority level is used for determining the actual transmission power of the N channels, the sum of the initial transmission power of the N channels and the initial transmission power of the L (L is more than or equal to 0) basic channels is larger than the maximum transmission power of the terminal equipment, the sum of the actual transmission power of the N channels and the initial transmission power of the L (L is more than or equal to 0) basic channels is not larger than the maximum transmission power of the terminal equipment, and the priority of the L basic channels is higher than the priority of the N channels.

After determining the priority level of the N channels, if the first channel set is a downlink channel, determining to receive M (M is less than or equal to N) channels with higher priority in the N channels according to the priority level, and discarding other N-M channels. If the first channel set is an uplink channel, M (M.ltoreq.N) channels with higher priority in the N channels are determined to be sent according to the priority level, and other N-M channels are discarded. Or if the first channel set is an uplink channel, determining the transmission power of the N channels according to the priority level. If the sum of the initial transmission power of the N channels and the initial transmission power of L (L is more than or equal to 0) basic channels determined according to the power adjustment instruction and the power adjustment strategy of the network device is larger than the maximum transmission power of the terminal device, wherein the priority of the L basic channels is higher than the priority of the N channels in the first channel set. If the sum of the initial transmission power of the N channels and the initial transmission power of the L basic channels is larger than the maximum transmission power of the terminal equipment, the terminal equipment reduces the transmission power of the channel with lower priority level in the N channels, and preferentially meets the transmission power of the channel with higher priority level. Assuming that the priority class of the N channels is classified as J class, the priority of the i class is higher than the priority i < J of the J class, the priority guarantees that the actual transmission power of the i class channel is equal to the initial transmission power thereof, if the sum of the actual transmission power of the 1 st to i class channels and the initial transmission power of the L basic channels is smaller than the maximum transmission power of the terminal device, if the sum of the actual transmission power of the 1 st to i+1 class channels and the initial transmission power of the L basic channels is larger than the maximum transmission power of the terminal device, the actual transmission power of the i class channel is equal to the initial transmission power thereof, and the actual transmission power of the i+1 class channel is w times the initial transmission power, so that the sum of the actual transmission power of the 1 st to i+1 class channels and the initial transmission power of the L basic channels is not larger than the maximum transmission power of the terminal device.

Fig. 4 is a schematic diagram of an embodiment of a network device.

The embodiment of the application also provides a network device, and the network device is used for: in at least one time unit, at least one set (i.e. the first set of channels) is determined, in which set the channel priority is determined.

When the first channel set is a set of uplink channels, the first channel set includes at least one of PUCCH and PUSCH. The PUCCH channel is used to carry uplink control information such as HARQ-ACK, CSI (Channel state information ), SR (Scheduling request), LRR (link recovery req terminal device st, link recovery request), and the like. Uplink control information including HARQ-ACK, CSI and the like can be carried in the PUSCH. When the first channel set is a set of downlink channels, PDSCH is included.

The priority rule is determined to be a 1 st priority rule, a 2 nd priority rule, a 3 rd priority rule, or a combination thereof.

Determining the priority of the channels according to the priority rule, and determining M channels in the N channels to be received or transmitted according to the priority; and or, determining the transmission power and the receiving power of M channels in the N channels according to the priority, and discarding other N-M channels.

In order to implement the above technical solution, the network device 400 provided by the present application includes a network sending module 401, a network determining module 402, and a network receiving module 403.

The network sending module is used for sending PDSCH, dynamic scheduling information or configuration information and the like.

The network determining module is used for determining the priority rule and further determining the priority of the channel.

The network receiving module is configured to receive an uplink control channel (PUCCH) or uplink data (PUSCH).

Specific methods for implementing the functions of the network sending module, the network determining module and the network receiving module are described in the embodiments of the methods of the present application, and are not described here again.

Fig. 5 is a schematic diagram of an embodiment of a terminal device.

The application also provides a terminal device, and the terminal device is used for: in at least one time unit, at least one set (i.e. the first set of channels) is determined, in which set the channel priority is determined.

In order to implement the above technical solution, the present application proposes a terminal device 500, which includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503.

The terminal receiving module is used for receiving downlink data (PDSCH), dynamic scheduling information or configuration information and the like.

The terminal determining module is used for the priority rule to further determine the priority of the channel.

The terminal sending module is configured to send an uplink control channel (PUCCH) or uplink data (PUSCH).

Specific methods for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module are described in the embodiments of the methods of the present application, and are not described herein.

The terminal device of the present application may refer to a mobile terminal device.

Fig. 6 shows a schematic structural diagram of a network device according to another embodiment of the present application. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. comprising a transmitter and a receiver, providing a unit for communicating with various other apparatuses over a transmission medium. The wireless interface realizes the communication function with the terminal equipment, processes wireless signals through the receiving and transmitting device, and the data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program for executing any of the embodiments of the application, which computer program runs or changes on the processor 601. When the memory, the processor, the wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described here again.

Fig. 7 is a block diagram of a terminal device according to another embodiment of the present application. The terminal device 700 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in terminal device 700 are coupled together by a bus system. Bus systems are used to enable connected communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

The user interface 703 may include a display, keyboard, or pointing device, such as a mouse, trackball, touch pad, or touch screen, among others.

The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs therein. The operating system includes various system programs, such as a framework layer, a core library layer, a driving layer, and the like, for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, etc. for implementing various application services.

In an embodiment of the application, the memory 702 contains a computer program that runs or changes on the processor 701, which executes any of the embodiments of the application.

The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and performs the steps of the above method in combination with its hardware. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 701, implements the steps of the method embodiments described in any of the embodiments above.

The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be performed by integrated logic circuitry in hardware in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In one typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and memory.

Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The application thus also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any of the embodiments of the application. For example, the memory 603, 702 of the present application may include forms of non-persistent storage, random Access Memory (RAM) and/or non-volatile memory in a computer-readable medium, such as read-only memory (ROM) or flash RAM.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may be implemented in any method or technology for information storage. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Disks (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer readable media, as defined herein, does not include transitory computer readable media (transmission media), such as modulated data signals and carrier waves.

Based on the embodiments of fig. 4 to 7, the present application also proposes a mobile communication system comprising at least 1 embodiment of any one of the terminal devices in the present application and/or at least 1 embodiment of any one of the network devices in the present application.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

In the present application, "first" and "second" are used to distinguish between a plurality of objects having the same name, and unless otherwise specified, there is no particular meaning.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims

1. A physical channel transmission method, comprising the steps of:

any one channel and at least one other channel in a set containing N (N is more than or equal to 2) channels have overlapping relation in time;

the kind of the channel comprises at least one of the following:

2. The method of claim 1, wherein,

the priority of the dynamically scheduled channel class is higher than the priority of the semi-persistently scheduled channel class.

3. The method of claim 1, wherein,

the priority of the semi-persistent scheduling channel of the first type of HARQ retransmission state is higher than the priority of the dynamic scheduling channel of the second type of HARQ retransmission state.

4. The method of claim 1, wherein,

When the N channels are uplink channels,

the types of the channels also include: PUSCH without uplink control information.

5. The method of claim 4, wherein,

the priority of the PUSCH in the first type HARQ retransmission state is higher than or equal to the PUSCH which carries CSI and does not carry HARQ-ACK in the second type HARQ retransmission state in the N channels; and/or

The priority of the PUSCH in the first type HARQ retransmission state is higher than or equal to the PUCCH which carries CSI and does not carry HARQ-ACK in the N channels.

6. The method of claim 1, wherein,

receiving M channels (M is less than or equal to N) in N channels according to the priority, and discarding other N-M channels;

m channels are sent in the N channels according to the priority, and other N-M channels are discarded; or alternatively

And determining the actual transmission power of the N channels according to the priorities, preferentially reducing the channel power of the low priority, and reducing the sum of the transmission power of the N channels.

7. The method of claim 1, wherein,

the N channels are all PUSCH, all PDSCH or part of PUSCH and part of PUCCH.

8. A method according to any one of claims 1 to 7 for use in a terminal device,

9. A method according to any one of claims 1 to 7, for use in a network device,

10. A physical channel transmission device, using the method of any one of claims 1-7,

the device determines at least one set in at least one time unit, in which set the channel priority is determined.

11. The apparatus of claim 10, wherein,

the device receives PDSCH, transmits PUSCH or PUCCH according to the priority.

12. The apparatus of claim 10, wherein,

the device transmits PDSCH, receives PUSCH or PUCCH according to the priority.

13. A physical channel transmission apparatus, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of claims 1 to 9.

14. A computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1 to 9.