CN114070484B

CN114070484B - Uplink transmission method and corresponding device

Info

Publication number: CN114070484B
Application number: CN202010769058.8A
Authority: CN
Inventors: 张飒; 王轶; 付景兴; 孙霏菲
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2024-11-15
Anticipated expiration: 2040-08-03
Also published as: CN114070484A

Abstract

There is provided a method performed by a second class of transceiving nodes in a wireless communication system, comprising: receiving first type data and/or first type control signaling from a first type transceiver node; determining a hybrid automatic repeat request-acknowledgement, HARQ-ACK, codebook and a time unit for transmitting the HARQ-ACK codebook based on the first type of data and/or the first type of control signaling; and transmitting the HARQ-ACK codebook to the first class of transceiving nodes at the determined time unit, wherein the second class of transceiving nodes is configured with two levels of priority for transmission to the first class of transceiving nodes, the two levels of priority comprising a first priority and a second priority different from each other, the first priority being lower than the second priority, and the first priority being indicated by a first priority index, and the second priority being indicated by a second priority index.

Description

Uplink transmission method and corresponding equipment

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to an uplink transmission method and a corresponding device.

Background

With the rapid development of the information industry, particularly the growing demand from the mobile internet and internet of things (IoT, internet of things), the future mobile communication technology is challenged unprecedented. As per the international telecommunications union (International Telecommunication Union, ITU) report ITU-R M [ imt. Beyond 2020.Traffic ], it is expected that in 2020, mobile traffic will increase approximately 1000 times as compared to 2010 (4G age), the number of user device connections will also exceed 170 billions, and the number of connected devices will be even more dramatic as massive IoT devices gradually penetrate the mobile communication network. To address this unprecedented challenge, the communications industry and academia have developed a wide range of fifth generation mobile communication technology (5G) research, oriented in the 2020 s. The framework and overall goals of future 5G have been discussed in ITU report ITU-R M [ imt.vision ], where the requirements expectations, application scenarios and important performance metrics of 5G are specified. Aiming at the new demand in 5G, the ITU report ITU-R M [ IMT. FUTURE TECHNOLOGY TRENDS ] provides information related to the technical trend aiming at 5G, and aims to solve the remarkable problems of remarkable improvement of system throughput, consistency of user experience, expansibility to support IoT, time delay, energy efficiency, cost, network flexibility, support of emerging services, flexible spectrum utilization and the like. In 3GPP, work on the first stage of 5G is already underway. To support more flexible scheduling, 3GPP decides to support variable hybrid automatic repeat request-Acknowledgement (HARQ-ACK) feedback delay in 5G. In the existing long term evolution (Long Term Evolution, LTE) system, the time of uplink transmission from the downlink data to the HARQ-ACK is fixed, for example, in a frequency division duplex (Frequency Division Duplex, FDD) system, the time delay is 4 subframes, and in a time division duplex (Time Division Duplex, TDD) system, one HARQ-ACK feedback delay is determined for the corresponding downlink subframe according to the uplink and downlink configuration. In a 5G system, whether an FDD or TDD system, the uplink time unit in which HARQ-ACKs can be fed back is variable for one determined downlink time unit (e.g., downlink time slot, or downlink mini-slot). For example, the delay of the HARQ-ACK feedback may be dynamically indicated by the physical layer signaling, or different HARQ-ACK delays may be determined according to different services, or factors such as user capability.

Disclosure of Invention

The present invention is provided to solve at least the above problems and to provide at least the following advantages.

According to an aspect of the present invention, there is provided a method performed by a second class of transceiving nodes in a wireless communication system, comprising: receiving first type data and/or first type control signaling from a first type transceiver node; determining a hybrid automatic repeat request-acknowledgement, HARQ-ACK, codebook and a time unit for transmitting the HARQ-ACK codebook based on the first type of data and/or the first type of control signaling; and transmitting the HARQ-ACK codebook to the first class of transceiving nodes at the determined time unit, wherein the second class of transceiving nodes is configured with two levels of priority for transmission to the first class of transceiving nodes, the two levels of priority comprising a first priority and a second priority different from each other, the first priority being lower than the second priority, and the first priority being indicated by a first priority index, and the second priority being indicated by a second priority index.

Optionally, when the physical uplink control channel PUCCH of one first priority index overlaps with the PUCCH of one second priority index in time domain, it is determined how to multiplex uplink control information UCI included in the PUCCH of the first priority index with UCI included in the PUCCH of the second priority index based on whether the PUCCH of the second priority index includes the scheduling request SR and/or the link recovery request LRR.

Optionally, if the PUCCH of the second priority index contains an SR and/or an LRR, the HARQ-ACK contained in the PUCCH of the second priority index, and/or the SR, and/or the LRR is multiplexed with the HARQ-ACK contained in the PUCCH of the first priority index to one PUCCH, the channel state information CSI of the first priority index is not transmitted, and/or the SR and/or the LRR of the first priority index is not transmitted.

Optionally, if the PUCCH of the second priority index does not contain SR and/or LRR, multiplexing HARQ-ACK contained in the PUCCH of the second priority index with HARQ-ACK contained in the PUCCH of the first priority index, and/or SR, and/or LRR to one PUCCH, and not transmitting CSI of the first priority index; or multiplexing HARQ-ACKs included in the PUCCH of the second priority index and HARQ-ACKs included in the PUCCH of the first priority index to one PUCCH, not transmitting CSI of the first priority index, and/or not transmitting SR and/or LRR of the first priority index.

Optionally, when the PUCCH of one first priority index overlaps with the PUSCH of at least one second priority index in the time domain, multiplexing is based on one of the following:

Mode one: multiplexing HARQ-ACK of the first priority index and/or CSI of the first priority index onto PUSCH of the second priority index which does not contain UCI information;

mode two: multiplexing the HARQ-ACK of the first priority index onto the PUSCH of the second priority index containing UCI information;

mode three: multiplexing the HARQ-ACK of the first priority index onto the PUSCH of the second priority index containing UCI information if the resource of the PUSCH of the second priority index containing UCI information can bear the HARQ-ACK information of the first priority index; otherwise, multiplexing the first priority index HARQ-ACK to the PUSCH of the second priority index which does not contain UCI information;

mode four: one PUSCH is selected from PUSCHs of the second priority index satisfying a predefined condition, and then the first priority index HARQ-ACK and/or CSI is multiplexed onto the selected PUSCH.

Optionally, when the PUCCH of one first priority index overlaps with the PUSCH of at least one first priority index in the time domain, selecting the PUSCH of the first priority index having no collision with the PUSCH of the second priority index from the PUSCHs of the first priority indexes to form a set A0, and multiplexing the HARQ-ACK and/or CSI of the first priority index onto one PUSCH in the set A0 according to a specified method.

Optionally, when the PUCCH of one second priority index overlaps with the PUSCH of at least one first priority index in the time domain, multiplexing is based on one of the following:

Mode one: multiplexing the HARQ-ACK, and/or SR, and/or LRR of the second priority index onto the PUSCH of the first priority index which does not contain UCI information;

mode two: multiplexing the HARQ-ACK, and/or SR, and/or LRR of the second priority index onto the PUSCH of the first priority index containing UCI information;

Mode three: if the resource of the PUSCH containing the first priority index of UCI information can carry HARQ-ACK, and/or SR, and/or LRR information of the second priority index, multiplexing the HARQ-ACK, and/or SR, and/or LRR of the second priority index onto the PUSCH containing the first priority index of UCI information; otherwise, multiplexing the HARQ-ACK, and/or SR, and/or LRR of the second priority index onto the PUSCH of the first priority index which does not contain UCI information;

In a fourth aspect, one PUSCH is selected from PUSCHs of the first priority index satisfying the predefined condition, and then HARQ-ACKs, and/or SRs, and/or LRRs included in the PUCCH of the second priority index are multiplexed to the selected PUSCH.

Optionally, when a PUSCH of a first priority index carrying UCI of a first priority index overlaps with a PUSCH of a second priority index in a time domain, if the PUSCH of the second priority index satisfies a predefined condition, all or part of information of UCI of the first priority index is multiplexed onto the PUSCH of the second priority index.

Optionally, the predefined condition is that PUSCH of the second priority index does not include UCI information of the second priority index; or the PUSCH of the predefined condition being the second priority index does not contain HARQ-ACK information of the second priority index.

Optionally, when the HARQ-ACK codebook of a certain priority is a semi-static codebook, in the case that more than one PUSCH overlaps with the PUCCH carrying the HARQ-ACK in the time domain, the semi-static HARQ-ACK codebook is multiplexed onto the PUSCH in one of the following manners:

mode one: selecting one PUSCH from PUSCHs overlapping the PUCCH in a time domain according to a prescribed method;

Mode two: selecting a PUSCH indicated by scheduling DCI from PUSCHs overlapped with the PUCCH in the time domain, and marking a set formed by the selected PUSCHs as B0, wherein if the set B0 is not null, selecting one PUSCH from the set B0, multiplexing HARQ-ACK to the selected PUSCH, or multiplexing HARQ-ACK to all PUSCHs in the set B0, or multiplexing HARQ-ACK to part of PUSCHs in the set B0; and/or if the set B0 is an empty set, selecting a PUSCH of which the scheduling DCI does not indicate an uplink DAI domain and a PUSCH of which the scheduling DCI does not exist from the PUSCHs overlapped with the PUCCH in the time domain, and marking the set consisting of the selected PUSCHs as B1, wherein if the set B1 is not empty, selecting one PUSCH from the set B1, and multiplexing the HARQ-ACK to the selected PUSCH; and/or if the set B0 is an empty set and the set B1 is an empty set, transmitting the PUCCH without transmitting PUSCH overlapping the PUCCH in time domain;

Mode three: selecting a PUSCH indicated by scheduling DCI from PUSCHs overlapped with the PUCCH in time domain, wherein the scheduling DCI does not indicate the PUSCH of an uplink DAI domain, and the PUSCH without the scheduling DCI, and marking a set consisting of the selected PUSCHs as B2, wherein if the set B2 is not empty, selecting one PUSCH from the set B2 according to a specified method, and multiplexing HARQ-ACK to the selected PUSCH; or if the set B2 is an empty set, transmitting the PUCCH, and not transmitting the PUSCH overlapping the PUCCH in the time domain.

According to an aspect of the present invention, there is provided a second class of transceiving nodes in a wireless communication system, comprising: a transceiver configured to: receiving first type data and/or first type control signaling from a first type transceiver node; and transmitting the HARQ-ACK codebook to the first-class transceiver node in a time unit; a controller configured to control overall operation of the second class of transceiving nodes, comprising: determining a HARQ-ACK codebook and the time unit for transmitting the HARQ-ACK codebook based on the first type of data and/or the first type of control signaling; and controlling the transceiver to transmit the HARQ-ACK codebook to a first class of transceiving nodes at the determined time unit, wherein the second class of transceiving nodes is configured with two levels of priority for transmission to the first class of transceiving nodes, the two levels of priority including a first priority and a second priority different from each other, the first priority being lower than the second priority, and the first priority being indicated by a first priority index and the second priority being indicated by a second priority index.

According to an aspect of the present invention, there is provided a method performed by a first type of transceiving node in a wireless communication system, comprising: transmitting first-type data and/or first-type control signaling to a second-type receiving and transmitting node; receiving the HARQ-ACK codebook from the second class transceiver node at the time unit; wherein the HARQ-ACK codebook and the time unit are determined by a second class of transceiving nodes based on received first class data and/or first class control signaling, wherein the second class of transceiving nodes are configured with two levels of priority for transmission to the first class of transceiving nodes, the two levels of priority comprising a first priority and a second priority different from each other, the first priority being lower than the second priority, and the first priority being indicated by a first priority index and the second priority being indicated by a second priority index.

According to an aspect of the present invention, there is provided a first type of transceiving node in a wireless communication system, said first type of transceiving node comprising: a transceiver configured to transmit first class data and/or first class control signaling to a second class transceiver node and to receive HARQ-ACK codebook from the second class transceiver node in a time unit; and a controller configured to control overall operation of the first class of transceiving nodes, comprising: the control transceiver transmits the first type data and/or the first type control signaling to the second type transceiver node and receives the HARQ-ACK codebook from the second type transceiver node in the time unit; wherein the HARQ-ACK codebook and the time unit are determined by a second class of transceiving nodes based on received first class data and/or first class control signaling, wherein the second class of transceiving nodes are configured with two levels of priority for transmission to the first class of transceiving nodes, the two levels of priority comprising a first priority and a second priority different from each other, the first priority being lower than the second priority, and the first priority being indicated by a first priority index and the second priority being indicated by a second priority index.

Drawings

The foregoing and additional aspects and advantages of the present application will become more apparent and readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

FIG. 1 illustrates a block diagram of a second type of transceiving node according to an embodiment of the present invention;

fig. 2 shows a flow chart of a method performed by a UE according to an embodiment of the invention;

fig. 3 shows a block diagram of a first type of transceiving node according to an embodiment of the present invention;

fig. 4 shows a flow chart of a method performed by a base station according to an embodiment of the invention.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, a "terminal" or "terminal device" includes both a device of a wireless signal receiver having no transmitting capability and a hardware device of receiving and transmitting having a hardware device capable of receiving and transmitting bi-directional communications over a bi-directional communication link, as will be appreciated by those skilled in the art. Such a device may include: a cellular or other communication device having a single-line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (personal communications system) that may combine voice, data processing, facsimile and/or data communications capabilities; a PDA (personal digital assistant) that may include a radio frequency receiver, pager, internet/intranet access, web browser, notepad, calendar, and/or GPS (global positioning system) receiver; a conventional laptop and/or palmtop computer or other appliance that has and/or includes a radio frequency receiver. As used herein, "terminal," "terminal device" may be portable, transportable, installed in a vehicle (aeronautical, maritime, and/or land-based), or adapted and/or configured to operate locally and/or in a distributed fashion, to operate at any other location(s) on earth and/or in space. The "terminal" and "terminal device" used herein may also be a communication terminal, a network access terminal, and a music/video playing terminal, for example, may be a PDA, a MID (mobile internet device), and/or a mobile phone with a music/video playing function, and may also be a smart tv, a set-top box, and other devices.

Three major directions of the 5G application scenario are defined by 3gpp— eMBB (mobile broadband enhancement), mMTC (large-scale internet of things, more called mass machine type communication), URLLC (ultra-high reliability ultra-low latency communication). The eMBB scene refers to further improvement of performances such as user experience on the basis of the existing mobile broadband service scene, and is mainly used for seeking extreme communication experience among people. mMTC and URLLC are application scenarios of the internet of things, but the emphasis of each is different: mMTC is mainly information interaction between people and objects, and URLLC mainly reflects communication requirements between objects. eMBB and URLLC of 5G use a joint networking method to support both URLLC service and eMBB service in the same cell. Since URLLC traffic may be sparse traffic, the combined networking of eMBB and URLLC may increase system spectral efficiency over URLLC alone. Traffic URLLC is scheduled preferentially when there is URLLC traffic in the system, and traffic eMBB can be scheduled when there is no URLLC traffic or URLLC traffic occupies less resources in the system. Currently, when URLLC services and eMBB services collide, data and/or control information of URLLC services are preferentially transmitted, performance of eMBB services is lost, and a solution is needed for optimizing transmission of data and control information of eMBB services.

Hereinafter, various embodiments of the present application will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a block diagram of a second type of transceiving node according to an embodiment of the present invention. The second type of transceiving node is capable of implementing the various methods and/or algorithms implemented by the second type of transceiving node herein, but is not meant to imply physical or structural limitations as to the manner in which the different embodiments may be implemented, but rather the different embodiments of the present disclosure may be implemented in any suitably arranged system.

Referring to fig. 1, a second type of transceiving node 100 may comprise a transceiver 101 and a controller 102.

The transceiver 101 may be configured to receive first type data and/or first type control signaling from the first type transceiver node and to transmit second type data and/or second type control signaling to the first type transceiver node at a determined time unit.

The controller 102 may be a circuit-specific integrated circuit or at least one processor. The controller 102 may be configured to control the overall operation of the second type of transceiving node and to control the second type of transceiving node to implement the method proposed in the present invention. In particular, the controller 102 may be configured to determine the second type of data and/or the second type of control signaling and a time unit for transmitting the second type of data and/or the second type of control signaling and a power for transmitting the second type of data and/or the second type of control signaling based on the first type of data and/or the first type of control signaling, and to control the transceiver 101 to transmit the second type of data and/or the second type of control signaling to the first type of transceiving node at the determined time unit.

In the present invention, the first type of transceiving node may be a BS (Base Station), and the second type of transceiving node may be a UE (User Equipment). In the following examples, a base station is illustrated as an example (but not limited to) of a first type of transceiving node, and a UE is illustrated as an example (but not limited to) of a second type of transceiving node.

The first type of data may be data that is transmitted by the first type of transceiver node to the second type of transceiver node, and in the following examples, the first type of data is described by taking downlink data carried by PDSCH (Physical Downlink SHARED CHANNEL ) as an example (but not limited to).

The second type of data may be data that the second type of transceiver node transmits to the first type of transceiver node, and in the following examples, the second type of data is described by taking Uplink data carried by PUSCH (Physical Uplink SHARED CHANNEL ) as an example (but not limited to).

The first type of control signaling may be control signaling sent by the first type of transceiving node to the second type of transceiving node, and in the following examples, the first type of control signaling is described by taking downlink control signaling as an example (but not limited to). The downlink control signaling may be DCI (Downlink control information ) carried over PDCCH (Physical Downlink Control CHannel, physical downlink control channel) and/or control signaling carried over PDSCH (Physical Downlink SHARED CHANNEL ).

The second type of control signaling may be control signaling transmitted by the second type of transceiving node to the first type of transceiving node, and in the following examples, the second type of control signaling is described using uplink control signaling as an example (but not limited to). The Uplink control signaling may be UCI (Uplink control information ) carried through PUCCH (Physical Uplink Control CHannel, physical Uplink control channel) and/or control signaling carried through PUSCH (Physical Uplink SHARED CHANNEL ). The UCI type may include HARQ-ACK Information, SR (Scheduling Request ), LRR (LinkRecovery Request, link recovery request) and CSI (CHANEL STATE Information, channel state Information).

The first type time unit is a time unit for the first type transceiver node to send the first type data and/or the first type control signaling, and in the following examples, the first type time unit is described by taking the following time unit as an example (but not limited to).

The second type time unit is a time unit of the second type for the second type transceiver node to send the second type data and/or the second type control signaling, and in the following example, the second type time unit is described by taking an example (but not limited to) of the uplink time unit.

The first type of time unit and the second type of time unit may be one or more slots (slots), one or more sub-slots (sub-slots), one or more OFDM (Orthogonal Frequency Division Multiplexing ) symbols, one or more subframes (subframes).

Depending on the network type, the term "base station" or "BS" may refer to any component (or collection of components) configured to provide wireless access to a network, such as a Transmission Point (TP), a transmission-reception point (TRP), an enhanced base station (eNodeB or eNB), a 5G base station (gNB), a macrocell, a femtocell, a WiFi Access Point (AP), or other wirelessly enabled device. The base station may provide wireless access according to one or more wireless communication protocols, e.g., 5G 3GPP New radio interface/Access (NR), long Term Evolution (LTE), LTE-advanced (LTE-A), high Speed Packet Access (HSPA), wi-Fi 802.11a/b/g/n/ac, etc. For convenience, the terms "BS" and "TRP" are used interchangeably in this patent document to refer to the network infrastructure components that provide wireless access for remote terminals. Furthermore, depending on the network type, the term "user equipment" or "UE" may refer to any component such as a "mobile station", "subscriber station", "remote terminal", "wireless terminal", "reception point", "user equipment" or simply "terminal". For convenience, the term "user equipment" or "UE" is used in this patent document to refer to a remote wireless device that wirelessly accesses the BS, whether the UE is a mobile device (such as a mobile phone or smart phone) or a fixed device (e.g., a desktop computer or vending machine) as is commonly considered.

Fig. 2 shows a flow chart of a method performed by a UE according to an embodiment of the invention.

First, in step 201, the ue receives downlink data and/or downlink control signaling from a base station.

In step 202, the ue determines uplink data and/or uplink control signaling and uplink time units for transmitting the uplink data and/or the uplink control signaling based on the downlink data and/or the downlink control signaling, an uplink physical channel and power for transmitting the second type data and/or the second type control signaling.

In step 203, the UE sends uplink data and/or uplink control signaling to the base station at the determined power for sending the second type data and/or the second type control signaling.

In some embodiments, the UE may be configured with two levels of priority for uplink transmissions. For example, the two-level priority may include a first priority and a second priority different from each other. In one example, the first priority may be higher than the second priority. However, embodiments of the present disclosure are not limited thereto, e.g., a UE may be configured with priorities of more than two levels. For convenience, in embodiments of the present disclosure, description is made taking into account that the first priority is higher than the second priority.

In one example, the two levels of priority may be indicated by a priority number or priority index (e.g., a larger priority index (e.g., priority index 1) and a smaller priority index (e.g., priority index 0)). For example, a larger priority index may correspond to a higher priority, i.e., a larger priority index (e.g., priority index 1) may correspond to a higher priority than a smaller priority index (e.g., priority index 0). In this case, the larger priority index (e.g., priority index 1) may be a first priority, and the smaller priority index (e.g., priority index 0) may be a second priority. However, embodiments of the present disclosure are not limited thereto, and for example, two-level priorities may be indicated with other priority indexes or indicators. For convenience, in embodiments of the present disclosure, it is considered that the priority corresponding to the larger priority index (e.g., priority index 1) is higher than the priority corresponding to the smaller priority index (e.g., priority index 0). In addition, in embodiments of the present disclosure, a larger priority index (e.g., priority index 1) may be used interchangeably with a first priority or higher, and a smaller priority index (e.g., priority index 0) may be used interchangeably with a second priority or lower.

In some embodiments, the two-level priority with which the UE is configured may be a two-level physical layer priority. For example, one of the two levels of priority (a first priority (e.g., a larger priority index (e.g., priority index 1)) or a second priority (e.g., a smaller priority index (e.g., priority index 0))) may be provided for PUSCH or PUCCH. In particular, one PUSCH or PUCCH transmission (including a retransmission if any) may have (e.g., correspond to) a smaller priority index (e.g., priority index 0) or a larger priority index (e.g., priority index 1).

In one example, for a scheduling-free PUSCH transmission, the UE may determine the priority index from the parameter priority (if configured). For a PUCCH transmission with HARQ-ACK information corresponding to SPS (Semi-PERSISTENT SCHEDULING ) PDSCH reception or SPS PDSCH release, the UE may determine the priority index of the PUCCH transmission from the parameter HARQ-CodebookID (if configured). If a priority index is not configured for a certain PUSCH or PUCCH transmission of the UE, the priority index of the PUSCH or PUCCH transmission may be 0.

The priority indication field may provide a priority index if the UE listens to the PDCCH in the activated DL BWP to detect DCI format 0_1 and DCI format 1_1, or DCI format 0_2 and DCI format 1_2. If the UE indicates that it is able to listen to PDCCH in the activated DL BWP to detect DCI format 0_1 and DCI format 1_1 and to detect DCI format 0_2 and DCI format 1_2, DCI format 0_1 or DCI format 0_2 may schedule PUSCH transmission of any priority and DCI format 1_1 or DCI format 1_2 may schedule PDSCH reception and trigger PUCCH transmission of corresponding HARQ-ACK information of any priority.

In one example, the UE may be configured with a PUCCH configuration list, which may contain two PUCCH configurations, including a first PUCCH configuration and a second PUCCH configuration. For example, the priority of the first PUCCH configuration may be a second priority (e.g., a smaller priority index (e.g., priority index 0)), and the priority of the second PUCCH configuration may be a first priority (e.g., a larger priority index (e.g., priority index 1)).

For example, the sub-slot configuration length of each of the first PUCCH configuration and the second PUCCH configuration may be 7 OFDM symbols or 2 OFDM symbols. The sub-slot configuration lengths of different PUCCH configurations may be configured separately.

In some embodiments, the UE may be configured with a pdsch-HARQ-ACK-Codebook list. For example, the pdsch-HARQ-ACK-Codebook list may contain two

The pdsch-HARQ-ACK-Codebook configuration corresponds to a first HARQ-ACK Codebook and a second HARQ-ACK Codebook. For example, a first HARQ-ACK codebook is associated with a PUCCH of a smaller priority index (e.g., priority index 0) and a second HARQ-ACK codebook is associated with a PUCCH of a larger priority index (e.g., priority index 1). In this case, the priority of the first HARQ-ACK codebook may be a second priority (e.g., a smaller priority index (e.g., priority index 0)), and the priority of the second HARQ-ACK codebook may be a first priority (e.g., a larger priority index (e.g., priority index 1)).

When there is a time domain overlap between the PUCCH of a smaller priority index (e.g. priority index 0) and the PUCCH of a larger priority index (e.g. priority index 1), how to determine UCI information carried by the multiplexed PUCCH is a problem to be solved.

The PUCCH of the smaller priority index (e.g., priority index 0) may contain HARQ-ACK of the smaller priority index (e.g., priority index 0), and/or SR of the smaller priority index (e.g., priority index 0), and/or LRR of the smaller priority index (e.g., priority index 0), and/or CSI of the smaller priority index (e.g., priority index 0).

The PUCCH of the larger priority index (e.g., priority index 1) may contain HARQ-ACK of the larger priority index (e.g., priority index 1), and/or SR of the larger priority index (e.g., priority index 1), and/or LRR of the larger priority index (e.g., priority index 1).

If the PUCCH of the larger priority index (e.g., priority index 1) contains the SR of the larger priority index (e.g., priority index 1) and/or the LRR of the larger priority index (e.g., priority index 1), the UE does not transmit the CSI of the smaller priority index (e.g., priority index 0) and/or the SR of the larger priority index (e.g., priority index 1), and/or the LRR of the larger priority index (e.g., priority index 1) and the HARQ-ACK of the smaller priority index (e.g., priority index 0) contained in the PUCCH of the smaller priority index (e.g., priority index 0) to one PUCCH.

Alternatively, the UE may report whether the capability supports multiplexing UCI with different priority indexes. For example, the UE may report HARQ-ACKs and SR and/or LLR multiplexing supporting a smaller priority index (e.g., priority index 0) with a larger priority index (e.g., priority index 1). Or the UE may report UCI multiplexing supporting the HARQ-ACK of the smaller priority index (e.g., priority index 0) with the larger priority index (e.g., priority index 1). The UE multiplexes HARQ-ACKs of a larger priority index (e.g., priority index 1) included in the PUCCH of the larger priority index (e.g., priority index 1), and/or SRs of the larger priority index (e.g., priority index 1), and/or LRRs of the larger priority index (e.g., priority index 1) and the PUCCH of the smaller priority index (e.g., priority index 0) included in the PUCCH of the smaller priority index (e.g., priority index 0) to one PUCCH, the UE does not transmit CSI of the smaller priority index (e.g., priority index 0) and the UE does not transmit SRs of the smaller priority index (e.g., priority index 0) and/or LRRs of the smaller priority index (e.g., priority index 0).

Or the UE may report HARQ-ACKs and SRs that support a smaller priority index (e.g., priority index 0) multiplexed with HARQ-ACKs and SRs of a larger priority index (e.g., priority index 1). The UE multiplexes HARQ-ACKs of a larger priority index (e.g., priority index 1) included in the PUCCH of the larger priority index (e.g., priority index 1) and/or HARQ-ACKs and SRs of a smaller priority index (e.g., priority index 0) included in the PUCCH of the larger priority index (e.g., priority index 1) and the PUCCH of the smaller priority index (e.g., priority index 0) to one PUCCH, and the UE does not transmit CSI of the smaller priority index (e.g., priority index 0).

If the PUCCH of the larger priority index (e.g., priority index 1) does not contain the SR of the larger priority index (e.g., priority index 1) and/or the LRR of the larger priority index (e.g., priority index 1), the UE multiplexes the HARQ-ACK of the larger priority index (e.g., priority index 1) contained in the PUCCH of the larger priority index (e.g., priority index 1) with the HARQ-ACK of the smaller priority index (e.g., priority index 0), and/or the SR, and/or the LRR to one PUCCH, and the UE does not transmit CSI of the smaller priority index (e.g., priority index 0). Or the UE multiplexes HARQ-ACKs for a larger priority index (e.g., priority index 1) and smaller priority index (e.g., priority index 0) to one PUCCH, the UE does not send CSI for the smaller priority index (e.g., priority index 0), and/or the UE does not send SR and/or LRR for the smaller priority index (e.g., priority index 0).

Alternatively, the UE may report whether the capability supports multiplexing UCI with different priority indexes. For example, the UE may report HARQ-ACK multiplexing supporting a smaller priority index (e.g., priority index 0) with a larger priority index (e.g., priority index 1). The UE multiplexes HARQ-ACKs of a larger priority index (e.g., priority index 1) contained in the PUCCH of a larger priority index (e.g., priority index 1) and HARQ-ACKs of a smaller priority index (e.g., priority index 0) contained in the PUCCH of a smaller priority index (e.g., priority index 0) to one PUCCH, the UE does not transmit CSI of the smaller priority index (e.g., priority index 0) and the UE does not transmit SR of the smaller priority index (e.g., priority index 0) and/or LRR of the smaller priority index (e.g., priority index 0).

Or the UE may report HARQ-ACK and SR multiplexing supporting a smaller priority index (e.g., priority index 0) with a larger priority index (e.g., priority index 1). The UE multiplexes HARQ-ACKs of a larger priority index (e.g., priority index 1) included in the PUCCH of a larger priority index (e.g., priority index 1) and HARQ-ACKs and SRs of a smaller priority index (e.g., priority index 0) included in the PUCCH of a smaller priority index (e.g., priority index 0) into one PUCCH, and the UE does not transmit CSI of the smaller priority index (e.g., priority index 0).

Alternatively, since PUCCH of a smaller priority index (e.g. priority index 0) and PUCCH transmission time units of a larger priority index (e.g. priority index 1) may not be identical, PUCCH transmission time units for each larger priority index (e.g. priority index 1) may be processed when processing time domains overlap.

In the first PDCCH reception, a first PUCCH having a larger priority index, a PUSCH having a smaller priority index, or a second PUCCH is scheduled by the first DCI format, and transmission of the first PUCCH will overlap in time with transmission of the PUSCH or the second PUCCH, and the UE cancels transmission of the PUSCH or the second PUCCH before the first symbol overlaps with the first PUCCH transmission. The UE expects that the transmission of the first PUCCH will not start before t_1 (proc, 2) +d1 after the last symbol received by the first PDCCH.

The method can simultaneously transmit the HARQ-ACK information with low priority and/or SR information on the premise of ensuring the reliability of UCI transmission with high priority. The transmission opportunity of the UCI with low priority can be increased on the premise of not influencing the reliability of the UCI with high priority, thereby reducing the retransmission times of the downlink data with low priority and the time delay of a user plane and improving the frequency spectrum efficiency of the network.

When there is a time domain overlap of the PUCCH of a smaller priority index (e.g. priority index 0) with the PUCCH of a larger priority index (e.g. priority index 1), how to determine the timing relationship that should be met by the multiplexing is a problem to be solved.

A first PUCCH with a larger priority index and a second PUCCH with a smaller priority index are scheduled by the first DCI format in the first PDCCH reception, and transmission of the first PUCCH overlaps in time with transmission of the second PUCCH, and UCI information carried by the second PUCCH may be multiplexed with UCI information carried by the first PUCCH to be transmitted on one PUCCH when a start time of the second PUCCH minus an end time of the first PDCCH is greater than or equal to t1+d1. The UE does not transmit the second PUCCH. When the starting time of the second PUCCH minus the ending time of the first PDCCH is less than or equal to t1+d1, the UE transmits the second PUCCH, and the UE cancels the second PUCCH transmission overlapping the first PUCCH in the time domain.

The UE may report whether the capability supports multiplexing UCI carried by the cancelled lower priority PUCCH with higher priority UCI. If the UE reporting capability supports this function, the base station may turn on the function through higher layer signaling configuration. The UE multiplexes UCI carried by the cancelled second PUCCH of lower priority with UCI of higher priority.

T1 may be a preparation time of PUSCH, and T1 may be determined according to the UE processing capability type, μ, and N2. For example, when the UE configures parameters processingType2Enabled, T1 is determined by table 2, otherwise T1 is determined by table 1. d1 is determined by UE capability reporting. μ is determined by the minimum SCS configuration in the first PDCCH, first PUCCH or second PUCCH.

TABLE 1 PUSCH preparation time for UE processing capability 1

μ	PUSCH preparation time N ₂ [ OFDM symbol count ]
		0	10
1	12
		2	23
3	36

TABLE 2 PUSCH preparation time for UE processing capability 1

μ	PUSCH preparation time N ₂ [ OFDM symbol count ]
		0	5
1	5.5
		2	11for frequency range 1

The method defines the timing relation which needs to be met when the UE multiplexes UCI with different priorities, defines the behavior of the UE, and improves the reliability of transmission. The complexity of network decoding is reduced.

When there is a time domain overlap of the PUCCH of a smaller priority index (e.g. priority index 0) with the PUSCH of a larger priority index (e.g. priority index 1), how to determine the timing relationship that should be met by the multiplexing is a problem to be solved.

The PUSCH with a larger priority index and the PUCCH with a smaller priority index are scheduled by one DCI format in one PDCCH reception, and the PUSCH transmission overlaps with the PUCCH transmission in time, and UCI information carried by the PUCCH may be multiplexed to the PUSCH transmission when the starting time of the PUCCH minus the ending time of the PDCCH is greater than or equal to t2+d2. The UE does not transmit PUCCH. When the starting time of the PUCCH minus the ending time of the PDCCH is less than or equal to t2+d2, the UE transmits the PUCCH, and the UE cancels PUCCH transmission overlapping the PUSCH in the time domain.

The UE may report whether the capability supports multiplexing UCI carried by the cancelled lower priority PUCCH with the higher priority PUSCH. If the UE reporting capability supports this function, the base station may turn on the function through higher layer signaling configuration. The UE multiplexes UCI carried by the cancelled lower priority PUCCH with the higher priority PUSCH.

T2 may be a preparation time of PUSCH, and T2 may be determined according to the UE processing capability type, μ, and N2. For example, when the UE configures parameters processingType2Enabled, T2 is determined by table 2, otherwise T2 is determined by table 1. d2 is determined by UE capability reporting. μ is determined by the minimum SCS configuration in PDCCH, PUSCH or PUCCH.

The method defines the timing relation which needs to be met when the UE multiplexes UCI and uplink data with different priorities, defines the behavior of the UE and improves the reliability of transmission. The complexity of network decoding is reduced.

How to determine which larger priority index (e.g., priority index 1) the PUCCH of a smaller priority index (e.g., priority index 0) is multiplexed with and UCI information carried by the multiplexed PUSCH is a problem to be solved when there is a time domain overlap between the PUCCH of a smaller priority index (e.g., priority index 0) and the PUSCH of at least one larger priority index (e.g., priority index 1)

How to determine which larger priority index (e.g., priority index 1) the PUCCH of a smaller priority index (e.g., priority index 0) is multiplexed with and UCI information carried by the multiplexed PUSCH is a problem to be solved when there is a time domain overlap of the PUCCH of a smaller priority index (e.g., priority index 0) and the PUSCH of at least one larger priority index (e.g., priority index 1).

The PUSCH of one larger priority index (e.g., priority index 1) may contain HARQ-ACKs of the larger priority index (e.g., priority index 1), and/or CSI of the larger priority index (e.g., priority index 1), and/or uplink data of the larger priority index (e.g., priority index 1).

In the case where the number of PUSCHs of a larger priority index (e.g., priority index 1) is more than 1:

In one approach, the UE multiplexes HARQ-ACKs of a smaller priority index (e.g., priority index 0) and/or CSI of a smaller priority index (e.g., priority index 0) onto PUSCH of a larger priority index (e.g., priority index 1) that does not contain UCI information.

If the number of PUSCHs of a larger priority index (e.g., priority index 1) that does not contain UCI information is greater than 1, the ue may select one PUSCH according to a prescribed method. For example, the UE may select one PUSCH according to a method specified by 3gpp TS 38.213 and then multiplex HARQ-ACKs and/or CSI of a smaller priority index (e.g., priority index 0) to the selected PUSCH. The UE does not send SRs and/or LRRs for smaller priority indices (e.g., priority index 0). Alternatively, the UE does not send CSI for the smaller priority index (e.g., priority index 0) of the smaller priority index (e.g., priority index 0).

Or the UE selects one PUSCH from PUSCHs of larger priority indexes (e.g., priority index 1) that do not contain UCI information, which satisfy a predefined condition. The predefined condition may be that the number of PUSCH resources is greater than a threshold value. The PUSCH Resource number may be an RE (Resource Element) number, or an RB (Resource Block) number, or an RE number excluding DMRS (Demodulation REFERENCE SIGNAL), or an RE number that may carry UCI. Alternatively, if the number of PUSCHs of a larger priority index (e.g., priority index 1) containing no UCI information satisfying a predefined condition is 0, the ue may multiplex HARQ-ACKs of a smaller priority index (e.g., priority index 0) onto PUSCHs of a larger priority index (e.g., priority index 1) containing UCI information.

Alternatively, the first mode may be based on the capability of the UE to report. For example, the UE may report support multiplexing HARQ-ACKs for a smaller priority index (e.g., priority index 0) and/or CSI for a smaller priority index (e.g., priority index 0) onto PUSCH for a larger priority index (e.g., priority index 1) that does not contain UCI information. Or the UE may report support multiplexing HARQ-ACKs for a smaller priority index (e.g., priority index 0) and/or CSI for a smaller priority index (e.g., priority index 0) onto PUSCH for a larger priority index (e.g., priority index 1). Or the UE may report support for multiplexing HARQ-ACKs of a smaller priority index (e.g., priority index 0) and/or CSI of a smaller priority index (e.g., priority index 0) onto PUSCH of a larger priority index (e.g., priority index 1) containing UCI information. It should be noted that, the UE may also report the UCI information type included.

In a second way, the UE multiplexes HARQ-ACKs of a smaller priority index (e.g., priority index 0) onto PUSCH of a larger priority index (e.g., priority index 1) containing UCI information. The UE does not send SR and/or LRR of the smaller priority index (e.g., priority index 0), and the UE does not send CSI of the smaller priority index (e.g., priority index 0).

Alternatively, the second mode may be based on the capability of the UE to report. The UE may report HARQ-ACKs supporting multiplexing of smaller priority indexes (e.g., priority index 0) onto PUSCH of larger priority indexes (e.g., priority index 1) containing UCI information. When the UE reports supporting the capability, the base station may configure the UE to adopt mode two through higher layer signaling.

In a third aspect, if resources of PUSCH including a larger priority index (e.g., priority index 1) of UCI information can carry HARQ-ACK information of a smaller priority index (e.g., priority index 0), the UE multiplexes HARQ-ACK of the smaller priority index (e.g., priority index 0) onto PUSCH including a larger priority index (e.g., priority index 1) of UCI information. Otherwise, the UE multiplexes HARQ-ACKs of the smaller priority index (e.g., priority index 0) onto PUSCH of the larger priority index (e.g., priority index 1) that does not contain UCI information. PUSCH of a larger priority index (e.g., priority index 1) that does not contain UCI information may be determined according to manner one.

In a fourth aspect, the UE selects one PUSCH from PUSCHs of larger priority indexes (e.g., priority index 1) satisfying a predefined condition. The predefined condition may be that the number of PUSCH resources is greater than a threshold value. The number of PUSCH resources may be the number of REs, or the number of RBs, or the number of REs excluding DMRS, or the number of REs that may carry UCI. For example, the UE may select one PUSCH from PUSCHs of larger priority indexes (e.g., priority index 1) satisfying a predefined condition according to a method prescribed by 3gpp TS 38.213, and then multiplex HARQ-ACKs and/or CSI of smaller priority indexes (e.g., priority index 0) to the selected PUSCH.

Alternatively, if the number of PUSCHs of a larger priority index (e.g., priority index 1) satisfying the predefined condition is 1 and contains UCI information of the larger priority index (e.g., priority index 1), the UE does not transmit UCI information of a smaller priority index (e.g., priority index 0).

Alternatively, if there is no PUSCH satisfying the predefined condition, the UE does not transmit PUCCH of a smaller priority index (e.g., priority index 0) and UCI information of a smaller priority index (e.g., priority index 0).

The method solves the problem of multiplexing the PUCCH with which PUSCH of a smaller priority index (for example, priority index 0), and firstly can reduce the time delay of multiplexing the UCI with high priority, improve the reliability of UCI transmission with low priority and also can improve the reliability of PUSCH transmission with high priority. The second mode is simpler to realize, and has less influence on the protocol. The third mode may increase the reliability of high priority PUSCH transmissions. In the fourth mode, the reliability of the low-priority UCI transmission can be improved, and the reliability of the high-priority PUSCH transmission can also be improved.

When there is a time domain overlap between the PUCCH of one smaller priority index (e.g. priority index 0) and the PUSCH of at least one smaller priority index (e.g. priority index 0), how to determine UCI information carried by the multiplexed PUSCH is a problem to be solved.

The PUCCH of the smaller priority index (e.g., priority index 0) may contain HARQ-ACK of the smaller priority index (e.g., priority index 0) and/or CSI of the smaller priority index (e.g., priority index 0).

The UE selects the PUSCH of the smaller priority index (e.g., priority index 0) having no collision with the PUSCH of the larger priority index (e.g., priority index 1) among the PUSCHs of the smaller priority index (e.g., priority index 0) to form a set A0. The collision means that two PUSCHs cannot be transmitted simultaneously, so that the UE only transmits the PUSCH with higher priority, but does not transmit the PUSCH with lower priority. The collision may be that two PUSCHs on an active BWP of the same carrier overlap in time domain. The collision may also be that two PUSCHs on the same carrier overlap in the time domain.

The UE multiplexes HARQ-ACKs and/or CSI for a smaller priority index (e.g., priority index 0) to one PUSCH in set A0 according to a prescribed method. For example, the UE may select one PUSCH multiplexing HARQ-ACK and/or CSI for a smaller priority index (e.g., priority index 0) in set A0 according to the method specified in 3gpp TS 38.213. Or the UE may select one PUSCH in the set A0 to multiplex the HARQ-ACKs and/or CSI of the smaller priority index (e.g., priority index 0) according to the methods of other embodiments of the present aspect.

The present method solves the problem of multiplexing PUCCHs of a smaller priority index (e.g., priority index 0) with PUSCHs of which smaller priority index (e.g., priority index 0). The method avoids multiplexing the UCI with low priority to the PUSCH with low priority which collides with the PUSCH with high priority, and increases the transmission probability of the UCI with low priority, thereby reducing the retransmission times of the downlink data with low priority and the time delay of a user plane and improving the frequency spectrum efficiency of the network.

When there is a time domain overlap between the PUCCH of one larger priority index (e.g. priority index 1) and the PUSCH of at least one smaller priority index (e.g. priority index 0), how to determine which PUSCH the PUCCH of the larger priority index (e.g. priority index 1) is multiplexed with and UCI information carried by the multiplexed PUSCH is a problem to be solved.

The PUSCH of one smaller priority index (e.g., priority index 0) may contain HARQ-ACKs of the smaller priority index (e.g., priority index 0), and/or CSI of the smaller priority index (e.g., priority index 0), and/or uplink data of the smaller priority index (e.g., priority index 0).

In the case where the number of PUSCHs of a smaller priority index (e.g., priority index 0) is more than 1:

In one approach, the UE multiplexes HARQ-ACKs, and/or SRs, and/or LRRs for a larger priority index (e.g., priority index 1) onto PUSCH for a smaller priority index (e.g., priority index 0) that does not contain UCI information.

Alternatively, the UE may report HARQ-ACKs and/or CSI supporting multiplexing of a larger priority index (e.g., priority index 1) onto PUSCH of a smaller priority index (e.g., priority index 0) that does not contain UCI information. Or the UE may report HARQ-ACKs and/or CSI that support multiplexing of larger priority indices (e.g., priority index 1) onto PUSCH of smaller priority indices (e.g., priority index 0) that do not contain HARQ-ACKs and/or CSI.

If the number of PUSCHs of a smaller priority index (e.g., priority index 0) that does not contain UCI information is greater than 1, the ue may select one PUSCH according to a prescribed method. For example, the UE selects one PUSCH according to a method prescribed by 3gpp TS 38.213, and then multiplexes HARQ-ACKs of a larger priority index (e.g., priority index 1), and/or SRs, and/or LRRs to the selected PUSCH.

Or the UE selects one PUSCH from PUSCHs of smaller priority indexes (e.g., priority index 0) that do not contain UCI information that satisfy a predefined condition. The predefined condition may be that the number of PUSCH resources is greater than a threshold value. The number of PUSCH resources may be the number of REs, or the number of RBs, or the number of REs excluding DMRS, or the number of REs that may carry UCI.

In a second way, the UE multiplexes HARQ-ACKs, and/or SRs, and/or LRRs for a larger priority index (e.g., priority index 1) onto PUSCH for a smaller priority index (e.g., priority index 0) containing UCI information.

Optionally, the UE may report HARQ-ACKs and/or CSI supporting the multiplexing of larger priority index (e.g., priority index 1) onto PUSCH containing UCI information of smaller priority index (e.g., priority index 0). Or the UE may report HARQ-ACKs and/or CSI supporting multiplexing of larger priority index (e.g., priority index 1) onto PUSCH containing HARQ-ACKs and/or CSI of smaller priority index (e.g., priority index 0).

In a third aspect, if the resource of PUSCH including the smaller priority index (e.g., priority index 0) of UCI information can carry HARQ-ACK of the larger priority index (e.g., priority index 1), and/or SR, and/or LRR information, the UE multiplexes HARQ-ACK of the larger priority index (e.g., priority index 1), and/or SR, and/or LRR onto PUSCH including the smaller priority index (e.g., priority index 0) of UCI information. Otherwise, the UE multiplexes HARQ-ACKs, and/or SRs, and/or LRRs for a larger priority index (e.g., priority index 1) onto PUSCH for a smaller priority index (e.g., priority index 0) that does not contain UCI information. PUSCH of a smaller priority index (e.g., priority index 0) that does not contain UCI information may be determined according to manner one.

In a fourth aspect, the UE selects one PUSCH from PUSCHs of smaller priority indexes (e.g., priority index 0) satisfying a predefined condition. The predefined condition may be that the number of PUSCH resources is greater than a threshold value. The number of PUSCH resources may be the number of REs, or the number of RBs, or the number of REs excluding DMRS, or the number of REs that may carry UCI. The predefined condition may also be that the number of OFDM symbols of PUSCH is less than a threshold value. Since SCS (sub-CARRIER SPACE, subcarrier spacing) of PUSCH of each carrier may be different, the number of OFDM symbols may be referenced to SCS of PUCCH. The predefined condition may also be that the transmission time of PUSCH is less than a threshold value. The UE selects one PUSCH among PUSCHs of smaller priority indexes (e.g., priority index 0) satisfying a predefined condition according to a prescribed method. For example, the UE may select one PUSCH among PUSCHs of smaller priority indexes (e.g., priority index 0) satisfying a predefined condition according to a method specified in 3gpp TS 38.213, and then multiplex HARQ-ACKs of larger priority indexes (e.g., priority index 1), and/or SRs, and/or LRRs to the selected PUSCH.

Alternatively, if the number of PUSCHs of a smaller priority index (e.g., priority index 0) satisfying the predefined condition is 1 and contains UCI information of the smaller priority index (e.g., priority index 0), the UE does not transmit PUSCH of the smaller priority index (e.g., priority index 0), and multiplexes UCI of the smaller priority index (e.g., priority index 0) and UCI of the larger priority index (e.g., priority index 1) onto one PUCCH.

Alternatively, if there is no PUSCH of a smaller priority satisfying the predefined condition, the UE does not transmit PUSCH of a smaller priority index (e.g., priority index 0).

Optionally, the UE multiplexes HARQ-ACKs, and/or SRs, and/or LRRs for a larger priority index (e.g., priority index 1) to the PUSCH at which at least one smaller priority index (e.g., priority index 0) starts transmission earliest.

Optionally, the UE multiplexes HARQ-ACKs, and/or SRs, and/or LRRs of a larger priority index (e.g., priority index 1) to a PUSCH with the earliest starting DMRS transmission time among PUSCHs of at least one smaller priority index (e.g., priority index 0).

The method solves the problem of multiplexing the PUCCH of a larger priority index (for example, priority index 1) with which PUSCH, and firstly can reduce the time delay of multiplexing the UCI with low priority, improve the reliability of UCI transmission with high priority and also can increase the reliability of PUSCH transmission with low priority. The second mode is simpler to realize, and has less influence on the protocol. Mode three may increase the reliability of low priority PUSCH transmissions. In the fourth mode, the reliability of UCI transmission with high priority can be improved, and the reliability of PUSCH transmission with low priority can also be improved.

On one carrier, how to determine the multiplexing method of UCI of a smaller priority index (e.g., priority index 0) is a problem to be solved when PUSCH of a smaller priority index (e.g., priority index 0) carrying UCI of a smaller priority index (e.g., priority index 0) overlaps PUSCH of a larger priority index (e.g., priority index 1) in the time domain.

UCI of a smaller priority index (e.g., priority index 0) may contain HARQ-ACK of the smaller priority index (e.g., priority index 0), and/or CSI of the smaller priority index (e.g., priority index 0).

If the PUSCH of the larger priority index (e.g., priority index 1) satisfies a predefined condition, the UE multiplexes all or part of the information of the UCI of the smaller priority index (e.g., priority index 0) onto the PUSCH of the larger priority index (e.g., priority index 1), and the UE does not transmit the PUSCH of the smaller priority index (e.g., priority index 0).

The predefined condition may be that the number of resources of PUSCH is greater than a threshold value. The PUSCH resource number may be the number of REs, or the number of RBs, or the number of REs excluding DMRS, or the number of REs that may carry UCI of a smaller priority index (e.g., priority index 0). Or the predefined condition may also be that PUSCH of a larger priority index (e.g., priority index 1) does not contain UCI information of the larger priority index (e.g., priority index 1). Or the predefined condition may also be that PUSCH of a larger priority index (e.g., priority index 1) does not contain HARQ-ACK information of the larger priority index (e.g., priority index 1). The predefined condition may also support this function for UE capability reporting. For example, the UE may report HARQ-ACKs and/or CSI supporting a smaller priority index (e.g., priority index 0) multiplexed onto PUSCH of a larger priority index (e.g., priority index 1). Or the UE may report HARQ-ACKs and/or CSI supporting a smaller priority index (e.g., priority index 0) multiplexed onto PUSCH of a larger priority index (e.g., priority index 1) that does not contain UCI information. Or the UE may report HARQ-ACKs and/or CSI that support multiplexing of smaller priority indices (e.g., priority index 0) onto PUSCH containing HARQ-ACKs and/or CSI for larger priority indices (e.g., priority index 1).

When there is a time domain overlap of PUSCHs of a plurality of larger priority indexes (e.g., priority index 1) and a smaller priority index (e.g., priority index 0), the UE may select a PUSCH of one larger priority index (e.g., priority index 1) according to methods of other embodiments of the present invention, and the UE multiplexes all or part of information of UCI of the smaller priority index (e.g., priority index 0) onto a PUSCH of the larger priority index (e.g., priority index 1), and the UE does not transmit a PUSCH of the smaller priority index (e.g., priority index 0).

Note that, the partial information of UCI may be HARQ-ACK information.

The invention can increase the probability of UCI transmission with low priority, reduce the probability of retransmission of downlink data with low priority, improve the utilization rate of network spectrum and reduce the transmission delay of the downlink data.

The HARQ-ACK codebook for a certain priority of the UE is a semi-static codebook, e.g., the HARQ-ACK codebook for a smaller priority index (e.g., priority index 0) is a semi-static codebook. When uplink DAI domain indication in uplink DCI formatWhen the UE multiplexes the semi-static HARQ-ACK codebook to this DCI scheduled PUSCH, otherwise the UE does not multiplex the HARQ-ACK codebook to this PUSCH.

The base station schedules 2 PUSCHs to the UE, wherein dci#1 schedules pusch#1 and dci#2 schedules pusch#2. These 2 PUSCHs all overlap in time domain with the PUCCH carrying HARQ-ACK, the base station expects the UE to multiplex HARQ-ACK to pusch#2, dci#2 indicatesThe base station does not expect the UE to multiplex HARQ-ACKs to pusch#1, dci#1 indicatesIf the UE does not decode dci#2 correctly, in case there is overlap in time domain between PUCCH and pusch#1, the UE expects to multiplex HARQ-ACK carried in PUCCH to pusch#1, whereas dci#1 indicates that the UE will not transmit HARQ-ACK on pusch#1, and the UE's behavior is undefined, in order to solve this problem, the following method may be employed.

In one aspect, the UE selects one PUSCH from PUSCHs overlapping the PUCCH in the time domain according to a predetermined method. The UE multiplexes HARQ-ACKs onto this selected PUSCH. For example, the UE may select one PUSCH from PUSCHs overlapping the PUCCH in the time domain according to a method prescribed in 3gpp TS 38.213. DCI indication if this PUSCH is scheduledThe UE transmits the PUCCH and does not transmit the PUSCH overlapping the PUCCH in the time domain. Or the UE simultaneously transmits the PUCCH and the PUSCH overlapping the PUCCH in the time domain. Or the UE ignores the indication of the uplink DAI domain, and multiplexes the HARQ-ACK information on the PUSCH for transmission.

In a second aspect, the UE selects a scheduling DCI indication from PUSCH overlapping the PUCCH in the time domainThe set of these PUSCH components is denoted B0. If set B0 is not empty, the UE selects a PUSCH from set B0. The UE selects one PUSCH from the set B0 according to a prescribed method. For example, the UE may select one PUSCH from the set B0 according to the method specified in 3gpp TS 38.213. The UE multiplexes HARQ-ACKs onto this selected PUSCH. The UE does not multiplex HARQ-ACK information onto other PUSCHs in set B0. Or if set B0 is not null, the UE multiplexes HARQ-ACKs onto all PUSCHs in set B0.

Alternatively, if the set B0 is an empty set, the UE selects PUSCH whose scheduling DCI does not indicate the uplink DAI domain and PUSCH whose scheduling DCI is not indicated from PUSCH overlapped with PUCCH in the time domain, and the set formed by these PUSCHs is denoted B1. If set B1 is not empty, the UE selects a PUSCH from set B1. The UE selects one PUSCH from the set B1 according to a prescribed method. For example, the UE may select one PUSCH from the set B1 according to the method specified in 3gpp TS 38.213. The UE multiplexes HARQ-ACKs onto this selected PUSCH. The UE does not multiplex HARQ-ACK information onto other PUSCHs in set B1.

Alternatively, if the set B0 is an empty set and the set B1 is an empty set, the UE transmits the PUCCH, and the UE does not transmit the PUSCH overlapping the PUCCH in the time domain. Or the UE selects one PUSCH from PUSCHs overlapping the PUCCH in time domain according to a predefined method. For example, the UE may select one PUSCH from PUSCHs overlapping with the PUCCH in the time domain according to the method specified in 3gpp TS 38.213, multiplex HARQ-ACK onto this PUSCH, and ignore the indication of the uplink DAI domain. Or the UE simultaneously transmits the PUCCH and the PUSCH overlapping the PUCCH in the time domain.

Mode three, the UE selects a scheduling DCI indication from PUSCH overlapping the PUCCH in the time domainThe scheduled DCI does not indicate the PUSCH of the uplink DAI field, and the PUSCH without the scheduled DCI, the set of which is denoted B2. If set B2 is not empty, the UE selects a PUSCH from set B2 according to a prescribed method. For example, the UE may select one PUSCH from the set B2 according to the method specified by 3gpp ts 38.213. The UE multiplexes HARQ-ACKs onto this selected PUSCH. The UE does not multiplex HARQ-ACK information onto other PUSCHs in set B2.

Alternatively, if the set B2 is an empty set, the UE transmits the PUCCH, and the UE does not transmit the PUSCH overlapping the PUCCH in the time domain. Or the UE selects one PUSCH from the PUSCHs overlapped with the PUCCH in the time domain according to a specified method, multiplexes the HARQ-ACK on the PUSCH, and ignores the indication of the uplink DAI domain. For example, the UE may select one PUSCH from PUSCHs overlapping the PUCCH in the time domain according to a method prescribed in 3gpp TS 38.213.

Note that if CSI is included in the PUCCH, CSI may be processed in the same manner as HARQ-ACK.

It should be noted that, there is no overlap in time domain between a PUCCH and a PUSCH in a PUCCH time unit, at least a portion of the PUSCH overlaps with the PUCCH time unit, and the base station may indicate by an uplink DAI indicating DCI for scheduling the PUSCHThe UE may then multiplex HARQ-ACKs and/or CSI in this PUCCH onto PUSCH. Optionally, the sets B0, B2 may further contain the PUSCH.

Note that, for uplink DAI indicationThe UE multiplexes HARQ-ACK information on all these PUSCHs, and the UE can determine the size of the HARQ-ACK codebook and generate the HARQ-ACK codebook according to higher layer signaling configuration. For example, the UE may generate a HARQ-ACK codebook according to 3GPP TS 38.213 9.1.2.1, if the UE does not detect PDSCH or DCI requiring feedback of HARQ-ACK, the bits of HARQ-ACK are NACK.

It should be noted that if an uplink DAI indicatesThe PUSCH of (2) overlaps with the plurality of PUCCH time units in time domain, and the UE selects one PUCCH carrying HARQ-ACK from the PUCCH time units meeting the multiplexing timing relation. If all of the PUCCH time units satisfying the multiplexing timing relationship have no HARQ-ACK information, the UE selects the first PUCCH time unit or the last PUCCH time unit, and the UE may determine the size of the HARQ-ACK codebook and determine the HARQ-ACK codebook according to higher layer signaling configuration. For example, the UE may generate a HARQ-ACK codebook according to 3GPP TS 38.2139.1.2.1, where the bits of the HARQ-ACK are NACK.

The method defines the behavior of the UE and improves the reliability of uplink control signaling and data transmission. The transmission probability of uplink data is increased, the frequency spectrum efficiency is improved, and the fault tolerance of the network is improved. The blind detection times of the network can be reduced, and the time delay of the user plane can be reduced.

Fig. 3 shows a block diagram of a first type of transceiving node according to an embodiment of the present invention. The first type of transceiving node is capable of implementing the various methods and/or algorithms implemented by the first type of transceiving node herein, but is not meant to imply physical or structural limitations as to the manner in which the different embodiments may be implemented, but rather the different embodiments of the present disclosure may be implemented in any suitably arranged system.

Referring to fig. 3, a first type of transceiving node 300 may comprise a transceiver 301 and a controller 302.

The transceiver 301 may be configured to transmit and receive data of the first type and/or control signaling of the first type to and from a transceiving node of the second type in time units.

The controller 302 may be a circuit-specific integrated circuit or at least one processor. The controller 102 may be configured to control the overall operation of the first type of transceiving node, including controlling the transceiver 301 to transmit first type data and/or first type control signaling to the second type of transceiving node and to receive second type data and/or second type control signaling from the second type of transceiving node at a determined time unit, and this second type data and/or second type control signaling and time unit is determined by the second type of transceiving node based on the received first type data and/or first type control signaling.

In the following description, a base station is taken as an example (but not limited to) to illustrate a first type of transceiving node, a UE is taken as an example (but not limited to) to illustrate a second type of transceiving node, a downlink time unit is taken as an example (but not limited to) to illustrate a first type of time unit, and an uplink time unit is taken as an example (but not limited to) to illustrate a time unit. The first type of data and/or first type of control signaling is illustrated with downlink data and/or downlink control signaling (but not limited to). The HARQ-ACK codebook may be included in the second type of control signaling, which is illustrated with uplink control signaling (but not limited to).

First, in step 401, the base station transmits downlink data and/or downlink control signaling to the UE.

In step 402, the base station receives second class data and/or second class control signaling from the UE in an uplink time unit, wherein the second class data and/or second class control signaling and the uplink time unit are determined by the UE based on the received downlink data and/or downlink control signaling.

Those skilled in the art will appreciate that the base station decodes the second type data and/or the second type control signaling based on a method corresponding to the method performed by the UE in the above-described embodiments.

Those skilled in the art will appreciate that the above illustrative embodiments are described herein and are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein may be combined in any combination. In addition, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are contemplated herein.

Those of skill in the art will appreciate that the various illustrative logical blocks, modules, circuits, and steps described herein may be implemented as hardware, software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such design decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The various illustrative logical blocks, modules, and circuits described herein may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.

In one or more exemplary designs, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The examples of the present application are merely for ease of description and to aid in a comprehensive understanding of the present application, and are not intended to limit the scope of the present application. Therefore, it should be understood that all modifications and adaptations or forms of the application derived from the technical idea of the present application other than the embodiments disclosed herein fall within the scope of the present application.

Claims

1. A method performed by a terminal in a wireless communication system, comprising:

Receiving a physical downlink shared channel PDSCH and/or a physical downlink control channel PDCCH from a base station;

If a first physical uplink control channel PUCCH transmission with a smaller priority number overlaps with a second PUCCH transmission with a larger priority number in the time domain, HARQ-ACK information with different priority numbers is multiplexed in one PUCCH transmission, and if the first PUCCH transmission carries channel state information CSI and/or scheduling request SR, the CSI and/or SR are not sent,

The first PUCCH transmission carries HARQ-ACK information with a smaller priority number, the second PUCCH transmission carries HARQ-ACK information with a larger priority number, and

The one PUCCH is sent.

2. The method according to claim 1, wherein the multiplexing of HARQ-ACK information with different priority numbers into one PUCCH transmission comprises:

The HARQ-ACK information with different priority numbers and the SR with a larger priority number are multiplexed in the one PUCCH transmission.

3. The method according to claim 1, further comprising:

Terminal reporting supports multiplexing HARQ-ACK with different priority numbers into one PUCCH or one PUSCH.

4. The method according to claim 3, wherein:

The terminal reports that it supports multiplexing HARQ-ACK with different priority numbers into one PUCCH or PUSCH, including at least one of the following:

Support multiplexing of HARQ-ACK with a smaller priority number and HARQ-ACK with a larger priority number into one PUCCH;

Supporting multiplexing of a HARQ-ACK with a smaller priority number and a UCI with a larger priority number into one PUCCH, wherein the UCI with a larger priority number includes a HARQ-ACK with a larger priority number and a SR with a larger priority number;

Support multiplexing of a HARQ-ACK with a lower priority number to a PUSCH with a higher priority number, where the PUSCH with the higher priority number only transmits uplink data;

Supporting multiplexing of a HARQ-ACK with a larger priority number to a PUSCH with a smaller priority number, where the PUSCH with the smaller priority number only transmits uplink data;

Supporting multiplexing of a HARQ-ACK with a smaller priority number, a HARQ-ACK with a larger priority number, and/or a CSI with a larger priority number to a PUSCH with a larger priority number; and

Supports multiplexing of a HARQ-ACK with a larger priority number, a HARQ-ACK with a smaller priority number, and/or a CSI with a smaller priority number into a PUSCH with a smaller priority number.

5. The method according to claim 1, wherein:

If the first PUCCH overlaps with a PUSCH with a larger priority number in the time domain and the PUSCH includes the CSI with the larger priority number, the HARQ-ACK information with the smaller priority number is not sent.

6. The method according to claim 4, wherein:

UCI includes at least one of HARQ-ACK information, SR, link recovery request LRR and CSI.

7. The method according to claim 1, wherein:

The first PUCCH is associated to a time unit of overlapping higher priority PUCCH transmissions.

8. The method according to claim 1, wherein:

The time unit of the PUCCH transmission includes at least one of a time slot or a sub-time slot.

9. The method according to claim 1, further comprising:

Configuration information of a PUCCH configuration list is received from a base station, where the PUCCH configuration list includes two PUCCH configurations, wherein a first PUCCH configuration corresponds to a smaller priority number and a second PUCCH configuration corresponds to a larger priority number.

10. The method according to claim 1 or 9, wherein, if a PUCCH configuration is configured with a sub-slot configuration length, the time unit of the PUCCH transmission corresponding to the PUCCH configuration is a sub-slot, and if the PUCCH configuration is not configured with a sub-slot configuration length, the time unit of the PUCCH transmission corresponding to the PUCCH configuration is a slot.

11. The method according to any one of claims 1-9, wherein the smaller priority number is priority number 0, and the larger priority number is priority number 1.

12. A method performed by a base station in a wireless communication system, comprising:

Sending PDSCH and/or PDCCH to the terminal;

Receive PUCCH from the terminal;

Wherein, if a first PUCCH with a smaller priority number overlaps with a second PUCCH with a larger priority number in the time domain, HARQ-ACK information with different priority numbers is multiplexed on one PUCCH, and, if the first PUCCH carries channel state information CSI and/or scheduling request SR, the CSI and/or SR are not received, or the CSI and/or SR are not sent,

The first PUCCH carries HARQ-ACK information with a smaller priority number, and the second PUCCH carries HARQ-ACK information with a larger priority number.

13. The method according to claim 12, wherein:

The HARQ-ACK information with different priority numbers is multiplexed in one PUCCH including:

HARQ-ACK information of different priority numbers and SR of a larger priority number are multiplexed on the one PUCCH.

14. The method according to claim 12, further comprising,

The receiving terminal reports support for multiplexing HARQ-ACK with different priority numbers into one PUCCH or one PUSCH.

15. The method according to claim 14, wherein:

16. The method according to claim 12, wherein:

If the first PUCCH overlaps with a PUSCH with a larger priority number in the time domain and the PUSCH includes CSI with a larger priority number, the HARQ-ACK information with a smaller priority number is not received or the HARQ-ACK information with the smaller priority number is not sent.

17. The method according to claim 15, wherein:

UCI includes HARQ-ACK information, at least one of SR, LRR and CSI.

18. The method according to claim 12, wherein:

The first PUCCH is associated to the time unit of the overlapping larger priority PUCCH.

19. The method according to claim 12, wherein:

The time unit of the PUCCH includes at least one of a time slot or a sub-time slot.

20. The method of claim 12, further comprising:

Configuration information of a PUCCH configuration list is sent to a terminal, where the PUCCH configuration list includes two PUCCH configurations, wherein a first PUCCH configuration corresponds to a smaller priority number, and a second PUCCH configuration corresponds to a larger priority number.

21. A method according to claim 12 or 20, wherein, if a sub-slot configuration length is configured in a PUCCH configuration, the time unit of the PUCCH corresponding to the PUCCH configuration is a sub-slot, and if the sub-slot configuration length is not configured in the PUCCH configuration, the time unit of the PUCCH corresponding to the PUCCH configuration is a slot.

22. The method according to any one of claims 12-20, wherein the smaller priority number is priority number 0, and the larger priority number is priority number 1.

23. A terminal in a wireless communication system, comprising:

transceivers, which send and/or receive signals;

Processor; and

A memory storing instructions executable by the processor, wherein when the instructions are executed by the processor, the processor is caused to perform the method of any one of claims 1-11.

24. A base station in a wireless communication system, comprising:

transceivers, which send and/or receive signals;

Processor; and

A memory storing instructions executable by the processor, which, when executed by the processor, causes the processor to perform the method of any one of claims 12-22.