CN110768773B

CN110768773B - Uplink information multiplexing method and device

Info

Publication number: CN110768773B
Application number: CN201910943716.8A
Authority: CN
Inventors: 闫志宇
Original assignee: China Academy of Information and Communications Technology CAICT
Current assignee: China Academy of Information and Communications Technology CAICT
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2022-05-24
Anticipated expiration: 2039-09-30
Also published as: CN110768773A

Abstract

The application discloses an uplink information multiplexing method, a PUSCH group comprises at least one PUSCH, and the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI; determining a target PUSCH in the PUSCH group according to at least one factor, wherein the target PUSCH is used for bearing the target UCI, and the PUCCH is discarded; the at least one factor comprises any item combination of PUSCH transmission time, a cell for transmitting the PUSCH and the number of modulation symbols after target UCI coding. The application also provides equipment applying the method. The method and the device solve the problem of how to realize UCI multiplexing on the PUSCH by the service with high reliability requirement and low time delay requirement.

Description

Uplink information multiplexing method and device

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a method and a device for multiplexing uplink information.

Background

In the NR system, a mobile terminal device reports Uplink Control Information (UCI) to a network device, which is used for the network device to schedule downlink data or uplink data transmission of the mobile terminal device.

For example, the network device transmits downlink traffic data through a Physical Downlink Shared Channel (PDSCH), and after receiving the downlink traffic data, the mobile terminal device feeds back Acknowledgement (ACK) or non-acknowledgement (NACK) information for the downlink traffic data on a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH). The ACK and NACK information are collectively referred to as hybrid automatic repeat request acknowledgement information (HARQ-ACK).

In addition to HARQ-ACK, UCI may include CSI and RI, etc., and CSI includes at least one of CQI, PMI, CRI, PTI, BMI.

Generally, a mobile terminal device transmits UCI in a PUCCH channel. If the mobile terminal device is scheduled to transmit PUCCH and PUSCH channels at the same time, the power efficiency of the mobile terminal device is low. Intermodulation interference may also be generated if the two are far apart in frequency. Therefore, the mobile terminal device generally does not support simultaneous transmission of PUCCH and PUSCH channels.

For example, when the PUCCH for carrying UCI and at least one PUSCH (PUSCH group) are time-overlapped in the same slot, the mobile terminal apparatus multiplexes UCI in the slot onto one PUSCH (target PUSCH).

The existing NR system mainly considers the reliability requirement of 1 × 10^-1And eMBB service with the time delay requirement of more than 4-5 ms. However, the NR system of rel.16 will support more services with different reliability and delay requirements, for example, reliability requirements of up to 1 × 10^-6And URLLC traffic with delay requirements within 1 ms. The target PUSCH is selected in the prior art, and the HARQ-ACK reliability or time delay requirement related to the URLLC cannot be met. For example, the target PUSCH may occupy an insufficient number of coded modulation symbols, or the target PUSCH introduces undesirable latency.

The invention solves the problems that: if the mobile terminal equipment sends PUSCHs and PUCCHs for sending UCI in multiple serving cells of a target time unit, how the uplink information of the mobile terminal equipment is multiplexed on the target PUSCH meets the transmission requirements of the reliability and the time delay of the UCI, and the system efficiency is improved.

Disclosure of Invention

The application provides an uplink information multiplexing method and equipment, which solve the problem of how to realize UCI multiplexing on a PUSCH by services with high reliability requirements and low time delay requirements.

The embodiment of the application provides an uplink information multiplexing method, which comprises the following steps:

the PUSCH group comprises at least one PUSCH; the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

determining a target PUSCH in the PUSCH group according to at least one factor, wherein the target PUSCH is used for bearing the target UCI, and the PUCCH is discarded; the at least one factor comprises any item combination of PUSCH transmission time, a cell for transmitting the PUSCH and the number of modulation symbols after target UCI coding.

Preferably, the target UCI is a UCI having a higher priority among at least 2 UCI types in the PUCCH. Further preferably, the priority order of the UCI types is from high to low: HARQ-ACK, CSI part I, CSI part II.

Preferably, in each PUSCH group, the number of coded modulation symbols of the target UCI is not less than a first threshold.

Preferably, in each of the PUSCH groups, the mapping time of the coded modulation symbol of the target UCI is no later than the end time of the PUCCH, or in each of the PUSCH groups, the mapping time of the coded modulation symbol of the target UCI is no later than a second threshold.

Preferably, each PDCCH used for scheduling the PUSCH group is no earlier than the PDCCH used for scheduling the target UCI.

In any of the embodiments of the present application, preferably, the time unit is a time slot or a sub-time slot.

In any embodiment of the present application, preferably, the target PUSCH is further determined in the PUSCH group, and is selected according to the following factors and priority order: the serving cell index is minimum; the transmission time is the earliest.

Or, further determining a target PUSCH in the PUSCH group, and selecting according to the following factors and priority order: the number of modulation symbols after target UCI coding is maximum; the serving cell index is minimum; the transmission time is the earliest.

Or, further determining a target PUSCH in the PUSCH group, and selecting according to the following factors and priority order: the number of modulation symbols after target UCI coding is maximum; the transmission time is earliest; the serving cell index is the smallest.

On the other hand, the present application further provides a mobile terminal device, and with an embodiment of any one method of the present application, the mobile terminal device is configured to send a PUSCH group, where the PUSCH group includes at least one PUSCH; the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

the mobile terminal device is further configured to determine a target PUSCH in the PUSCH group according to at least one factor, to carry the target UCI, and to discard the PUCCH; the at least one factor comprises any item combination of PUSCH transmission time, a cell for transmitting the PUSCH and the number of modulation symbols after target UCI coding.

In a third aspect, the present application further provides a network device, configured to receive a PUSCH group, where the PUSCH group includes at least one PUSCH; the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

the network device is further configured to determine a target PUSCH in the PUSCH group according to at least one factor, and identify the target UCI; the at least one factor comprises any item combination of PUSCH transmission time, a cell for transmitting the PUSCH and the number of modulation symbols after target UCI coding.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

if the mobile terminal equipment sends the resource overlapping of the PUSCH and the PUCCH used for sending the UCI in a plurality of service cells of the target time unit, the mobile terminal equipment adopts the uplink information multiplexing mode of the invention, and can:

1. the reliability requirement of HARQ-ACK related to URLLC is met: if the system supports URLLC traffic, it is likely that the scheduling of PDSCH is bursty temporarily, so there is a high probability that the target PUSCH determined according to the prior art cannot meet the UCI reliability requirements.

2. The time delay requirement of HARQ-ACK related to URLLC is met:

on the basis of the reliability requirement of the HARQ-ACK related to the URLLC, the invention sets a threshold for the time delay of the target PUSCH, and can meet the time delay requirement of the HARQ-ACK related to the URLLC.

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 application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic diagram of the positions of PUCCH and PUSCH groups in slot n;

fig. 2 is a schematic diagram of time delay caused by multiplexing UCI to PUSCH;

FIG. 3 is a flow chart of the method of the present invention;

fig. 4 is a schematic diagram of an embodiment of the mobile terminal device, the network device and the system of the invention.

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 described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the positions of PUCCH and PUSCH groups in slot n.

The mobile terminal equipment transmits PUSCH in a plurality of service cells of an n time Slot (Slot n), such as PUSCH-1, PUSCH-2, PUSCH-3 and PUSCH-4 in figure 1, which are called PUSCH groups. If the resources of the PUSCH group and the PUCCH are in the same Slot, the mobile terminal device multiplexes UCI in Slot n onto one PUSCH in the PUSCH group, which we refer to as the target PUSCH, under the condition that the condition described in 9.2.5 in 3GPP TS 38.213V15.6.0 is satisfied. The target PUSCH is the smallest serving Cell index number in the PUSCH group (PUSCH located in Cell index 2 in the figure). If there are multiple PUSCHs located at the smallest Cell index number in the PUSCH group (for example, the PUSCH located at Cell index 2 in fig. 1 includes PUSCH-1 and PUSCH-2), the target PUSCH is the earliest transmitted PUSCH (i.e., PUSCH-1) among the multiple PUSCHs located at the smallest Cell index number in the PUSCH group.

And aiming at services with different time delay and reliability requirements, the requirements of the mobile terminal equipment on the reliability, time delay and efficiency of reporting the HARQ-ACK are different. If the target PUSCH is still determined by adopting the prior art, taking the HARQ-ACK related to the URLLC in the UCI as an example, the reliability of the HARQ-ACK related to the URLLC cannot be ensured

If the system only supports eMBB service, scheduling partial or all DCIs (DCI-1, DCI-2, DCI-3 and DCI-4 are possibly later than the DCI (DCI-0) scheduling PDSCH feeding HARQ-ACK back in the same time unit), so that the requirement of multiplexing UCI in the PUSCH can be considered by the scheduling result to meet the reliability requirement of the UCI.

Assume that the target PUSCH is PUSCH-1. However, according to the resource size of PUSCH-1 and the corresponding UCI multiplexing parameter

And the number of the coded modulation symbols which can be occupied by the HARQ-ACK determined by the alpha coefficient in the PUSCH. On these resources, HARQ-ACK transmission of URLLC cannot meet the reliability requirements.

Fig. 2 is a schematic diagram of time delay caused by multiplexing UCI to PUSCH, and the time delay requirement of HARQ-ACK related to URLLC cannot be guaranteed.

Assume that the target PUSCH is PUSCH-1. According to the prior art, HARQ-ACK is mapped on PUSCH-1 OFDM symbol by OFDM symbol after DMRS. When the transmission is possible on the resources of PUSCH-1, the ending time of the resources occupied by the HARQ-ACK is later than the ending time of the PUCCH, and the sending of the HARQ-ACK on the PUSCH-1 is equivalent to delaying the feedback time of the HARQ-ACK, and the delayed time may not be acceptable for URLLC services with strict delay requirements. In this case, as shown in fig. 2, the transmission end time of HARQ-ACK is T0 when the PUCCH is transmitted, the transmission end time of HARQ-ACK is T1 when the PUSCH-1 is transmitted, and if the transmission end time T1 cannot meet the latency requirement of HARQ-ACK, the PUSCH-1 cannot meet the latency requirement of HARQ-ACK.

FIG. 3 is a flow chart of the method of the present invention.

The embodiment of the application provides an uplink information multiplexing method, which comprises the following steps of 100-200:

step 100, determining a PUSCH group, wherein the PUSCH group comprises at least one PUSCH; the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

for example, in each of the PUSCH groups, the number of coded modulation symbols of the target UCI is not less than a first threshold, or the mapping time of the coded modulation symbols of the target UCI is not less than a second threshold.

Preferably, the time unit is a time slot or a sub-time slot.

The following steps 101-103 can be used to further select a PUSCH group. Any one or combination of steps may be used.

Step 101, for each of the PUSCH groups, the number of coded modulation symbols of the target UCI is not less than a first threshold.

Step 102, in each of the PUSCH groups, a mapping time of the coded modulation symbol of the target UCI is not later than an end time of the PUCCH, or, in each of the PUSCH groups, a mapping time of the coded modulation symbol of the target UCI is not later than a second threshold.

Step 103, scheduling each PDCCH of the PUSCH group no earlier than the PDCCH used for scheduling the target UCI.

Step 200, determining a target PUSCH in the PUSCH group according to at least one factor, wherein the target PUSCH is used for bearing the target UCI, and the PUCCH is discarded; the at least one factor comprises any item combination of PUSCH transmission time, a cell for transmitting the PUSCH and the number of modulation symbols after target UCI coding.

Through steps 101 to 103, if the PUSCH group is not empty, the mobile terminal device determines a target PUSCH in the PUSCH group, and sends the target UCI on the target PUSCH.

That is, in the target PUSCH, the number of coded modulation symbols of the target UCI is not less than a first threshold, or the mapping time of the coded modulation symbols of the target UCI is not less than the first threshold.

If the PUSCH group includes only one PUSCH in step 100, the PUSCH may serve as a target PUSCH for carrying a target UCI, and may meet the requirement of the reliability and/or the delay characteristic of the target UCI as much as possible.

If the PUSCH set includes at least two PUSCHs, via step 100, it is necessary to determine a target PUSCH for carrying a target UCI from the at least two PUSCHs. On one hand, the target PUSCH needs to meet the requirements of the reliability and/or the time delay characteristic of the target UCI as much as possible; on the other hand, the protocol is unified between the network equipment and the mobile terminal equipment so as to complete information interaction between the network equipment and the mobile terminal equipment.

Preferably, the target PUSCH may be determined using any one of the following steps:

step 201, further determining a target PUSCH in the PUSCH group, and selecting according to the following factors and priority order: the serving cell index is minimum; the transmission time is the earliest.

Step 202, further determining a target PUSCH in the PUSCH group, and selecting according to the following factors and priority order: the number of modulation symbols after target UCI coding is maximum; the serving cell index is minimum; the transmission time is the earliest.

Step 203, further determining a target PUSCH in the PUSCH group, and selecting according to the following factors and priority order: the number of modulation symbols after target UCI coding is maximum; the transmission time is earliest; the serving cell index is the smallest.

It should be noted that, through steps 101 to 103, if the PUSCH group is empty, the mobile terminal device discards the PUSCH group and sends the PUCCH. Optionally, the mobile terminal device may also discard the PUCCH.

And if the PUSCH group is empty according to the steps 101-103, no PUSCH suitable for carrying the target UCI exists in the target time unit. On the other hand, the mobile terminal device does not support simultaneous transmission of PUCCH and PUSCH channels at the same time. In this case, the mobile terminal apparatus may discard the PUSCH having an overlap in time with the PUCCH in the PUSCH group, and transmit the target UCI in the PUCCH. In this way, it can be ensured that the target UCI is not affected by the PUSCH channel, and the system efficiency is reduced thereby. Or optionally, if the PUSCH group is empty, the mobile terminal device may also discard the PUCCH, and keep sending the PUSCH with the transmission target time unit and the PUCCH overlapping in time, so as to ensure the uplink transmission efficiency of the mobile terminal device.

The following describes steps 101 to 103, 201 to 203, respectively.

In step 101, the number of coded modulation symbols of each corresponding target UCI in the PUSCH group is not less than a first threshold, where the first threshold is determined by a coding rate of the target UCI during PUCCH transmission.

Besides UCI, the PUSCH also comprises an uplink shared channel (UL-SCH) sent by the mobile terminal equipment, and the UL-SCH comprises uplink service data information sent to the network equipment by the mobile terminal equipment. The number of the coded modulation symbols occupied by different types of UCI information in the PUSCH is calculated by different parameters.

Assuming that the UCI corresponding to the PUCCH includes HARQ-ACK and CSI part1, first, it is determined that the target UCI is HARQ-ACK according to the priority order of UCI types. The coding rate of the target UCI in PUCCH transmission is determined by the number of information bits of HARQ-ACK and the resource amount of PUCCH resources. If the target UCI is carried on a certain channel in the PUSCH group, the actual coding rate of the target UCI on the channel is less than the coding rate of the target UCI carried on the PUCCH, and the reliability of the target UCI will be affected. In severe cases, the reliability requirements of the target UCI may not be met. And if the coding rate of the target UCI during PUCCH transmission is set to correspond to a first threshold, the first threshold represents a threshold of the number of the coded modulation symbols of the target UCI. When the target UCI is transmitted on the first threshold number of coded modulation symbols, the effective coding rate of the target UCI is equivalent to the coding rate when the target UCI is transmitted on the PUCCH. When the number of the coded modulation symbols which can be used for the target UCI in the PUSCH is smaller than a first threshold, the target UCI is transmitted on the PUSCH, and the reliability requirement of the target UCI cannot be met. When the number of the coded modulation symbols which can be used for the target UCI in the PUSCH is not less than the first threshold, the target UCI is transmitted on the PUSCH without influencing the reliability of the target UCI.

Encoding with only corresponding target UCIAnd the PUSCHs with the post-modulation symbol number not less than the first threshold can be used as elements of the PUSCH group to participate in the target PUSCH. In this way, the mobile terminal device sends the target UCI on the target PUSCH without affecting the reliability of the target UCI. Target time unit (Slot n) as exemplified in fig. 1. When the target UCI is HARQ-ACK, the number of the modulation symbols after coding corresponding to the coding rate of the target UCI during PUCCH transmission is a first threshold value, and the multiplexing parameters of the HARQ-ACK and the scheduling information of each PUSCH (for example PUSCH-1, PUSCH-2, PUSCH-3 and PUSCH-4) in the PUSCH group are used

And the alpha value and the length of the HARQ-ACK determine the number of the coded modulation symbols which can be used for the HARQ-ACK in each PUSCH. For example, Q 'is calculated for each PUSCH using the following formula (1)'_ACK(1)、Q′_ACK(2)、Q′_ACK(3) And Q'_ACK(4)). If Q'_ACK(1)、Q′_ACK(2) And Q'_ACK(4) Greater than a first threshold value, but Q'_ACK(3) Less than the first threshold, the PUSCH group includes PUSCH-1, PUSCH-2, and PUSCH-4, but not PUSCH-3.

Number Q 'of encoded modulation symbols for HARQ-ACK transmitted in each layer of PUSCH'_ACKExpressed by the following equation:

it should be noted that, if the target UCI is CSI part I, the number Q 'of coded modulation symbols occupied in PUSCH by UCI of CSI part I type is calculated'_CSI-1And calculating the number of the modulation symbols after coding in the PUSCH corresponding to the target UCI by adopting a mode. If the target UCI is CSI part II, calculating the number Q 'of coded modulation symbols occupied by UCI of the CSI part II type in the PUSCH'_CSI-2And calculating the number of the modulation symbols after coding in the PUSCH corresponding to the target UCI by adopting a mode.

Calculating the number Q 'of coded modulation symbols occupied by UCI of CSI part I type in PUSCH'_CSI-1The following method is adopted:

calculating the number Q 'of coded modulation symbols occupied by UCI of CSI part II type in PUSCH'_CSI-2The following method is adopted:

O_ACKnumber of bits representing HARQ-ACK, O_CSI-1Number of bits, O, representing CSI part I_CSI-2The number of bits representing the CSI part II; l is_ACKNumber of CRC bits, L, representing HARQ-ACK_CSI-1Number of CRC bits, L, representing CSI part I_CSI-2The number of CRC bits representing CSI part II.

Indicates the number of resources of the UL-SCH,

representing the total number of bits of the UL-SCH.

Indicating the number of OFDM symbols included in the PUSCH.

Indicating the number of resource units allowed for UCI transmission in the OFDM symbol l. l₀Is an index of an OFDM symbol located after the time symbol of the first DMRS in the PUSCH, excluding the DMRS. The alpha coefficient is configured to the mobile terminal equipment by the network equipment through high-level signaling. Mobile terminal device having two modes of acquisition

The value of (a). The first is the configuration of higher layer signaling to the mobileTerminal equipment is suitable for L_ACKOf bit HARQ-ACK

The value of (a). The other is that the high-layer signaling is configured to the mobile terminal equipment and is suitable for the L_ACKMultiple of bit HARQ-ACK

The mobile terminal equipment obtains the physical downlink control information DCI applicable to the PUSCH from the physical downlink control information DCI for scheduling the PUSCH

Is which of the alternatives.

And

is a parameter that is configured for the mobile terminal device by the higher layer signaling. The CSI part I refers to CSI information with a fixed load size, for example, for CSI report of type 1, the CSI part I includes RI, CRI, CQI of a first codeword, and the like; for type 2 CSI reporting, the CSI-part1 includes RI, CQI, non-zero wideband amplitude per layer, etc. The CSI part II refers to CSI information with a load size that can be changed according to different measurement results, for example, for CSI report of type 1, the CSI part II includes a PMI, a CQI of a second codeword, and the like; for the CSI report of type 2, the CSI part II includes PMI and the like.

In step 102, the end time of the mapping resource of the coded modulation symbol of each corresponding target UCI in the PUSCH group is no later than the end time of the PUCCH; or the end time of the mapping resource of the coded modulation symbol of each corresponding target UCI in the PUSCH group is within the deadline time of the UCI.

If the end time of the resource occupied by the target UCI is later than the end time of the PUCCH when the target UCI is transmitted on the PUSCH, the delayed time may not be acceptable for the service with strict delay requirement when the target UCI is transmitted on the PUSCH and the target UCI is equivalent to the feedback time delayed by the target UCI. Therefore, only the PUSCH having the end time of the mapping resource corresponding to the target UCI not later than the end time of the PUCCH can be an element in the PUSCH group to "participate" in the target PUSCH. Therefore, the mobile terminal device sends the target UCI on the target PUSCH without influencing the transmission delay performance of the target UCI. The 'the end time of the target UCI mapping resource corresponding to each channel in the PUSCH group is not later than the end time of the PUCCH' can limit the delay performance of the target UCI in PUSCH transmission not to be worse than the delay performance of the target UCI in PUCCH transmission. Further, it is possible that the delay requirement deadline of the target UCI is not the delay performance deadline for transmission on PUCCH. In this way, the end time of the target UCI mapping resource corresponding to each channel in the PUSCH group may be specified to be within the deadline time of the target UCI, that is, no later than the second threshold, and the PUSCH satisfying the condition may be used as an element in the PUSCH group to "participate" in the target PUSCH. Therefore, the mobile terminal equipment sends the target UCI on the target PUSCH, and the transmission delay performance requirement of the target UCI can be met.

In step 103, each PDCCH used for scheduling the PUSCH group is not earlier than the PDCCH used for scheduling the target UCI.

For example, if the target UCI includes HARQ-ACK, each corresponding PDCCH in the PUSCH group is no earlier than a PDCCH used to schedule a PDSCH corresponding to HARQ-ACK in the target UCI.

If the PDCCH used for scheduling the PDSCH is after the PDCCH of the PUSCH (or the PUSCH configuration is activated), the network device does not expect HARQ-ACK information of the PDSCH to be scheduled thereafter in the PUSCH when scheduling the PUSCH. Therefore, there may not be enough resources reserved in the PUSCH for carrying the target UCI for the coded modulation symbols, so that the target UCI cannot meet the requirement of reliability when transmitted on the PUSCH. If the elements in the PUSCH group satisfy: the target UCI includes HARQ-ACK, each PDCCH corresponding to each PUSCH group is not earlier than a PDCCH used for scheduling a PDSCH corresponding to the HARQ-ACK in the target UCI, and the network device may reserve the number of coded modulation symbols in the PUSCH enough to meet the reliability requirement of the target UCI, in consideration of that the PUSCH may need to carry HARQ-ACK of a PDSCH scheduled thereafter (or activate a PDSCH configured semi-statically) when scheduling the PUSCH (or activate a configured PUSCH).

Further, the PUSCH group and the PUCCH satisfy timing requirements, which include:

the time difference between the first OFDM symbol of the first reference channel and the last OFDM symbol of the reference PDSCH is larger than

One OFDM symbol duration. The first reference channel is the earliest transmitted channel in the PUCCH and PUSCH groups, and the reference PDSCH is the latest ending time in the PDSCH corresponding to the HARQ-ACK carried in the PUCCH. Wherein

The value of (2) is determined by the capability of the mobile terminal equipment for processing the PDSCH reported by the mobile terminal equipment;

the time difference between the first OFDM symbol of the second reference channel and the last OFDM symbol of the reference PDCCH is larger than

One OFDM symbol duration. A second reference channel is the earliest transmitted channel of the PUCCH and PUSCH groups, and a reference PDCCH is the latest ending time in a PDCCH used for scheduling a PUSCH group and for scheduling the PUCCH, wherein

The value of (2) is determined by the PUSCH processing capability of the mobile terminal equipment.

It should be noted that the "modulation symbol" described in this document occupies a time-frequency lattice point on the resource. The "OFDM symbol" refers to a time domain with a length of 1 symbol, and a frequency domain includes a plurality of resource blocks.

When the time sequence requirement is met, the terminal equipment can complete the preprocessing before the PUSCH is sent when the channel in the PUSCH group is scheduled, complete the preprocessing before the UCI is sent on the PUSCH and take the function of bearing the UCI.

In this embodiment, the method for selecting the PUSCH group includes, but is not limited to, using steps 101 to 103, and any one or a combination of steps in which the PUSCH group and the PUCCH satisfy the timing requirement.

In step 201, a target PUSCH is further determined in the PUSCH group, and is selected according to the following factors and priority order: the serving cell index is minimum; the transmission time is the earliest.

Specifically, for example, the target PUSCH is the smallest serving cell index number in the PUSCH group. If there are a plurality of PUSCHs located at the smallest serving cell index in the PUSCH group, the target PUSCH is the earliest transmission time among the plurality of PUSCHs located at the smallest serving cell index in the PUSCH group. The earliest time for sending the PUSCH refers to the earliest starting time of the PUSCH or the earliest ending time of the PUSCH.

By combining the step 101 or 102 of determining the PUSCH group, the requirement of reliability and/or time delay of the target UCI can be met. And the determined target PUSCH has unified knowledge between the network equipment and the mobile terminal equipment, and information interaction between the network equipment and the mobile terminal equipment can be completed.

In step 202, a target PUSCH is further determined in the PUSCH group, and is selected according to the following factors and priority order: the number of modulation symbols after target UCI coding is maximum; the serving cell index is minimum; the transmission time is the earliest.

For example, the target PUSCH is one with the largest number of coded modulation symbols of the corresponding target UCI in the PUSCH group; if there are a plurality of coded modulation symbols of the corresponding target UCI in the PUSCH group with the largest number, the target PUSCH is the PUSCH with the smallest index of the serving cell; and if a plurality of PUSCHs with the maximum number of coded modulation symbols of the corresponding target UCI in the PUSCH group and the minimum index of the serving cell are positioned, the target PUSCH is the PUSCH with the earliest transmission time. The earliest time for sending the PUSCH refers to the earliest starting time of the PUSCH or the earliest ending time of the PUSCH.

Taking the example of step 100, the PUSCH group includes PUSCH-1, PUSCH-2, and PUSCH-4, but does not include PUSCH-3. FalseThe scheduling information of each PUSCH (e.g., PUSCH-1, PUSCH-2, PUSCH-4) in the PUSCH group and the multiplexing parameter of HARQ-ACK are set

And the alpha value and the length of the HARQ-ACK determine the number of the coded modulation symbols which can be used for the HARQ-ACK in each PUSCH. For example, Q 'is calculated for each PUSCH using equation (1)'_ACK(1)、Q′_ACK(2)、Q′_ACK(4). And one of the number of the coded modulation symbols which can be used for HARQ-ACK and correspond to each PUSCH in the PUSCH group is used as a target PUSCH. E.g. Q'_ACK(2) And if the target PUSCH is the maximum, determining that the target PUSCH is PUSCH-2.

If the maximum value of the number of the coded modulation symbols which can be used for HARQ-ACK and respectively correspond to the PUSCH groups is multiple, the target PUSCH is the smallest cell index value of the multiple cell indexes; further, if there are a plurality of PUSCHs having the largest number of "coded modulation symbols available for HARQ-ACK" and the smallest cell index value within each PUSCH group, the target PUSCH is the earliest of the plurality of transmission times. By adopting the scheme of the invention, the maximum modulation symbol number after the UCI corresponding to each PUSCH group occupies the coding is taken as the target PUSCH, so that the reliability of the UCI in the transmission of the target PUSCH can be ensured. And the determined target PUSCH has unified knowledge between the network equipment and the mobile terminal equipment, and information interaction between the network equipment and the mobile terminal equipment can be completed.

In step 203, a target PUSCH is further determined in the PUSCH group, and is selected according to the following factors and priority order: the number of modulation symbols after target UCI coding is maximum; the transmission time is earliest; the serving cell index is the smallest.

For example, the target PUSCH is one with the largest number of coded modulation symbols of the corresponding target UCI in the PUSCH group; if the maximum number of the coded modulation symbols of the corresponding target UCI in the PUSCH group is multiple, the target PUSCH is the earliest in the sending time of the multiple PUSCHs; and if the number of the coded modulation symbols of the corresponding target UCI in the PUSCH group is the maximum and the transmission time is the earliest, the target PUSCH is the smallest in the serving cell index among the plurality of PUSCHs. The earliest time for sending the PUSCH refers to the earliest starting time of the PUSCH or the earliest ending time of the PUSCH.

Similar to the above step 202, by adopting the scheme of the present invention, the maximum number of modulation symbols after coding occupied by the respective corresponding UCI in the PUSCH group is taken as the target PUSCH, so that the reliability of the UCI during transmission of the target PUSCH can be ensured. And the determined target PUSCH has unified knowledge between the network equipment and the mobile terminal equipment, and information interaction between the network equipment and the mobile terminal equipment can be completed.

It should be noted that the steps 100 to 200 are particularly suitable for the case where the target UCI corresponds to the first type service. By adopting the manner of

steps

100 and 200 of the embodiment, the special requirements of reliability and/or time delay of the target UCI sent by the mobile terminal device can be met. For example, the UCI for URLLC service has the requirement index of reliability and delay, and the scheme described in this embodiment needs to be used. URLLC traffic is referred to as first type traffic. The eMBB service is referred to as a second type service. If the target UCI corresponds to the second type of service, the reliability and the delay characteristic of the target UCI have no special requirements, and the target PUSCH can still be determined by adopting the manner in the prior art.

The embodiment of the present application provides a mobile terminal device 10, which is used in the method described in any embodiment of the present application.

The mobile terminal device comprises a control module 11 and a sending module 12, wherein the sending module is used for sending a PUSCH group, and the PUSCH group comprises at least one PUSCH; the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

the control module is configured to determine a target PUSCH in the PUSCH group according to at least one factor, to carry the target UCI, and to discard the PUCCH; the at least one factor comprises any item combination of PUSCH transmission time, a cell for transmitting the PUSCH and the number of modulation symbols after target UCI coding.

The present application also proposes a network device 20 for use in a method according to any of the embodiments of the present application.

The network device comprises a receiving module 21 and a determining module 22, wherein the receiving module is used for receiving a PUSCH group, and the PUSCH group comprises at least one PUSCH; the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

the determining module is configured to determine a target PUSCH in the PUSCH group according to at least one factor, and identify the target UCI; the at least one factor comprises any item combination of PUSCH transmission time, a cell for transmitting the PUSCH and the number of modulation symbols after target UCI coding.

The control module determines the target PUSCH in the same manner as the determination module determines the target PUSCH, as described in steps 101 to 103 and 201 to 203, which will not be repeated here.

In order to make the network device and the mobile terminal device agree with each other so as to complete information interaction between them, the indication information for determining the target PUSCH method as described in any embodiment of the present application may be sent to the network device and/or the mobile terminal device through a higher layer configuration or other signaling, or sent from the network device to the mobile terminal device.

The indication information comprises an identifier representing any combination of the following conditions 1-3:

the method comprises the following steps that 1, the number of coded modulation symbols of each corresponding target UCI in the PUSCH group is not less than a first threshold, and the first threshold is determined by the coding rate of the target UCI during PUCCH transmission.

Condition 2, the end time of the mapping resource of the coded modulation symbol of each corresponding target UCI in the PUSCH group is not later than the end time of the PUCCH; or the end time of the mapping resource of the coded modulation symbol of each corresponding target UCI in the PUSCH group is within the deadline time of the UCI.

And 3, if the target UCI comprises HARQ-ACK, the PDCCH corresponding to each PUSCH group is not earlier than the PDCCH used for scheduling the PDSCH corresponding to the HARQ-ACK in the target UCI.

The indication information also comprises an identifier representing any one of the following priority orders 1-3:

and the priority order 1 and the target PUSCH are the smallest index number of the corresponding serving cell in the PUSCH group. If there are a plurality of PUSCHs in the PUSCH group located at the smallest serving cell index, the target PUSCH is the PUSCH in the PUSCH group located at the earliest transmission time among the plurality of PUSCHs located at the smallest serving cell index. The earliest time for sending the PUSCH refers to the earliest starting time or ending time of the PUSCH.

The priority order 2 and the target PUSCH are the maximum one of the number of the coded modulation symbols of the corresponding target UCI in the PUSCH group; if there are a plurality of coded modulation symbols of the corresponding target UCI in the PUSCH group with the largest number, the target PUSCH is the PUSCH with the smallest index of the serving cell; and if a plurality of PUSCHs with the maximum number of coded modulation symbols of the corresponding target UCI in the PUSCH group and the minimum index of the serving cell are positioned, the target PUSCH is the PUSCH with the earliest transmission time. The earliest time for sending the PUSCH refers to the earliest starting time of the PUSCH or the earliest ending time of the PUSCH.

The priority order 3 and the target PUSCH are the maximum one of the number of the coded modulation symbols of the corresponding target UCI in the PUSCH group; if the maximum number of the coded modulation symbols of the corresponding target UCI in the PUSCH group is multiple, the target PUSCH is the earliest in the sending time of the multiple PUSCHs; and if the number of the coded modulation symbols of the corresponding target UCI in the PUSCH group is maximum and the sending time is the earliest, the target PUSCH is the smallest index of the serving cell in the PUSCHs. Here, "the PUSCH transmission time is earliest" means that the start time or the end time of the PUSCH is earliest.

The mobile terminal device or the network device determines the PUSCH group. And the PUSCHs in the PUSCH group are all positioned in a target time unit. The PUCCH is also located in a target time unit and includes the target UCI.

Optionally, the PUCCH includes at least two UCI types, and the target UCI is a UCI with a higher priority of the at least two UCI types.

Optionally, the priority order of the UCI types includes HARQ-ACK > CSI part1> CSI part 2.

Optionally, the time unit is a time slot or a sub-time slot.

Optionally, the PUSCH group is determined by any combination satisfying the conditions 1 to 3, that is, by any combination in steps 101 to 103.

And if the PUSCH group is empty, the mobile terminal equipment discards the PUSCH group and sends the PUCCH. Optionally, the mobile terminal device discards the PUCCH.

And if the PUSCH group is not empty, the mobile terminal equipment determines a target PUSCH in the PUSCH group and sends the target UCI in the target PUSCH. And the network equipment determines a target PUSCH in the PUSCH group and identifies the target UCI in the target PUSCH. And the mobile terminal equipment or the network equipment uses any item of the priority order 1-3, namely any item of the steps 201-203 when determining the target PUSCH.

Optionally, the solution of the present invention is applicable to a case where the target UCI corresponds to a first type service, i.e., a URLLC service.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention 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 present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An uplink information multiplexing method, comprising:

the PUSCH group comprises at least one PUSCH, and the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

determining a target PUSCH in the PUSCH group according to at least one factor, wherein the target PUSCH is used for bearing the target UCI, and the PUCCH is discarded;

the at least one factor comprises a target UCI encoded modulation symbol number;

for each PUSCH group, the number of the coded modulation symbols of the target UCI is not less than a first threshold.

2. The method of claim 1,

the target UCI is a UCI with a higher priority among at least 2 UCI types in the PUCCH.

3. The method of claim 1,

the at least one factor further includes any combination of a PUSCH transmission time, a cell transmitting a PUSCH.

4. The method according to any one of claims 1 to 3,

for each PUSCH group, a mapping time of the coded modulation symbol of the target UCI is not later than an end time of the PUCCH, or,

for each of the PUSCH groups, a mapping time of the coded modulation symbol of the target UCI is no later than a second threshold.

5. The method according to any one of claims 1 to 4,

each PDCCH used to schedule the PUSCH group is no earlier than a PDCCH used to schedule the target UCI.

6. The method of claim 2,

the priority order of the UCI types is from high to low: HARQ-ACK, CSIpartI, CSIpart II.

7. The method according to any one of claims 1 to 6,

the time unit is a time slot or a sub-time slot.

8. The method according to any one of claims 1 to 6,

further determining a target PUSCH in the PUSCH group, and selecting according to the following factors and priority order:

the serving cell index is minimum;

the transmission time is the earliest.

9. The method according to any one of claims 1 to 6,

the number of modulation symbols after target UCI coding is maximum;

the serving cell index is minimum;

the transmission time is the earliest.

10. The method according to any one of claims 1 to 6,

the number of modulation symbols after target UCI coding is maximum;

the transmission time is earliest;

the serving cell index is the smallest.

11. The mobile terminal equipment is characterized by comprising a control module and a sending module;

the sending module is configured to send a PUSCH group, where the PUSCH group includes at least one PUSCH; the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

the control module is configured to determine a target PUSCH in the PUSCH group according to at least one factor, to carry the target UCI, and to discard the PUCCH;

the at least one factor comprises a target UCI encoded modulation symbol number; for each PUSCH group, the number of the coded modulation symbols of the target UCI is not less than a first threshold.

12. The mobile terminal apparatus of claim 11,

and if the PUSCH group is not empty, determining the target PUSCH in the PUSCH group, and sending the target UCI on the target PUSCH.

13. The mobile terminal apparatus of claim 11,

if the PUSCH group is empty, discarding the PUSCH group and sending the PUCCH; or the mobile terminal equipment discards the PUCCH.

14. A network device comprising a receiving module and a determining module;

the receiving module is configured to receive a PUSCH group, where the PUSCH group includes at least one PUSCH;

the resources of each PUSCH and PUCCH in the PUSCH group are in the same time unit; the PUCCH contains a target UCI;

the determining module is configured to determine a target PUSCH in the PUSCH group according to at least one factor, and identify the target UCI;