CN114070484A

CN114070484A - Uplink transmission method and corresponding equipment

Info

Publication number: CN114070484A
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: 2022-02-18

Abstract

There is provided a method performed by a second type of transceiving node in a wireless communication system, comprising: receiving first type data and/or first type control signaling from a first type transceiving 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 a HARQ-ACK codebook to the first class of transceiving nodes in the determined time unit, wherein the second class of transceiving nodes is configured with two-level priorities for transmission to the first class of transceiving nodes, the two-level priorities including a first priority and a second priority different from each other, the first priority being lower than the second priority and being indicated by the first priority index, the second priority being indicated by the second priority index.

Description

Uplink transmission method and corresponding equipment

Technical Field

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

Background

With the rapid development of the information industry, especially the growing demand from the mobile internet and internet of things (IoT), the future mobile communication technology is challenged with unprecedented challenges. As reported by the International Telecommunications Union (ITU) under ITU-R M [ imt. beam 2020. transfic ], it is expected that by 2020, mobile TRAFFIC will increase nearly 1000 times and the number of user equipment connections will also exceed 170 billion compared to 2010 (4G era), and as the vast number of IoT devices gradually permeates into mobile communication networks, the number of connected devices will be more dramatic. To address this unprecedented challenge, the communications industry and academia have developed extensive fifth generation mobile communications technology (5G) research, facing the 2020. Future 5G frameworks and overall goals are currently discussed in ITU's report ITU-R M [ imt.vision ], wherein the 5G demand landscape, application scenarios and various important performance indicators are specified. For the new requirements in 5G, ITU's report ITU-R M [ imt. user TECHNOLOGY TRENDS ] provides information related to the technical trend for 5G, aiming at solving significant problems of significant improvement of system throughput, consistency of user experience, scalability to support IoT, latency, energy efficiency, cost, network flexibility, support of emerging services, and flexible spectrum utilization. In 3GPP, work on the first phase of 5G is already in progress. To support more flexible scheduling, the 3GPP decides to support variable Hybrid Automatic Repeat request-Acknowledgement (HARQ-ACK) feedback delay in 5G. In an existing Long Term Evolution (LTE) system, an uplink transmission Time of receiving HARQ-ACK from downlink data is fixed, for example, in a Frequency Division Duplex (FDD) system, a Time delay is 4 subframes, and in a Time Division Duplex (TDD) system, an HARQ-ACK feedback Time delay is determined for a corresponding downlink subframe according to uplink and downlink configuration. In a 5G system, whether FDD or TDD, the uplink time unit for which HARQ-ACK can be fed back is variable for a certain downlink time unit (e.g., downlink timeslot, or downlink mini-timeslot). For example, the HARQ-ACK feedback delay may be dynamically indicated through physical layer signaling, or different HARQ-ACK delays may be determined according to different services or user capabilities and other factors.

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 invention, there is provided a method performed by a second type of transceiving node in a wireless communication system, comprising: receiving first type data and/or first type control signaling from a first type transceiving 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 a HARQ-ACK codebook to the first class of transceiving nodes in the determined time unit, wherein the second class of transceiving nodes is configured with two-level priorities for transmission to the first class of transceiving nodes, the two-level priorities including a first priority and a second priority different from each other, the first priority being lower than the second priority and being indicated by the first priority index, the second priority being indicated by the second priority index.

Optionally, when a physical uplink control channel PUCCH of a first priority index overlaps with a PUCCH of a second priority index in a 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 a scheduling request SR and/or a link restoration request LRR.

Optionally, if the PUCCH of the second priority index contains SR and/or LRR, the HARQ-ACK, and/or SR, and/or LRR contained in the PUCCH of the second priority index and the HARQ-ACK contained in PUCCH of the first priority index are multiplexed into one PUCCH, the channel state information CSI of the first priority index is not transmitted, and/or the SR and/or 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, without transmitting CSI of the first priority index; or, the HARQ-ACK contained in the PUCCH with the second priority index and the HARQ-ACK contained in the PUCCH with the first priority index are multiplexed into one PUCCH, the CSI of the first priority index is not transmitted, and/or the SR and/or LRR of the first priority index is not transmitted.

Optionally, when there is an overlap in the time domain between one PUCCH of the first priority index and at least one PUSCH of the second priority index, multiplexing is performed based on one of the following ways:

the first method is as follows: multiplexing the HARQ-ACK of the first priority index and/or the CSI of the first priority index on a PUSCH of a second priority index which does not contain UCI information;

the second method comprises the following steps: multiplexing the HARQ-ACK of the first priority index to a PUSCH of a second priority index containing UCI information;

the third method comprises the following steps: if the resources of the PUSCH containing the second priority index of the UCI information can bear the HARQ-ACK information of the first priority index, multiplexing the HARQ-ACK information of the first priority index on the PUSCH containing the second priority index of the UCI information; otherwise, multiplexing the first priority index HARQ-ACK on a PUSCH of a second priority index which does not contain UCI information;

the method is as follows: one PUSCH is selected from the 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 one PUCCH with a first priority index overlaps with at least one PUSCH with a first priority index in the time domain, a PUSCH with a first priority index, which does not conflict with a PUSCH with a second priority index, is selected from the PUSCHs with the first priority index to form a set a0, and the HARQ-ACK and/or CSI with the first priority index is multiplexed onto one PUSCH in the set a0 according to a prescribed method.

Optionally, when there is an overlap in the time domain between the PUCCH of one second priority index and the PUSCH of at least one first priority index, multiplexing is performed based on one of the following manners:

the first method is as follows: multiplexing HARQ-ACK, and/or SR, and/or LRR of the second priority index onto PUSCH of the first priority index not containing UCI information;

the second method comprises the following steps: 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;

the third method comprises the following steps: multiplexing the HARQ-ACK, and/or SR, and/or LRR of the second priority index onto the PUSCH of the first priority index containing the UCI information if the resources of the PUSCH of the first priority index containing the UCI information can carry the HARQ-ACK, and/or SR, and/or LRR information of the second priority index; otherwise, multiplexing HARQ-ACK, and/or SR, and/or LRR of the second priority index on PUSCH of the first priority index which does not contain UCI information;

in a fourth mode, one PUSCH is selected from the PUSCHs with the first priority index meeting the predefined condition, and then the HARQ-ACK, and/or SR, and/or LRR contained in the PUCCH with the second priority index is multiplexed to the selected PUSCH.

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

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

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

the first method is as follows: selecting one PUSCH from PUSCHs which overlap with a PUCCH in a time domain according to a specified method;

the second method comprises the following steps: selecting a PUSCH indicated by scheduling DCI from PUSCHs which overlap with the PUCCH in a time domain, and recording a set formed by the selected PUSCHs as B0, wherein if the set B0 is not empty, one PUSCH is selected from the set B0, HARQ-ACK is multiplexed on the selected PUSCH, or the HARQ-ACK is multiplexed on all PUSCHs in the set B0, or the HARQ-ACK is multiplexed on partial PUSCHs in the set B0; and/or if the set B0 is an empty set, selecting a PUSCH with scheduling DCI not indicating an uplink DAI domain and a PUSCH without scheduling DCI from PUSCHs overlapped with the PUCCH in a time domain, and marking the set formed by the selected PUSCHs as B1, wherein if the set B1 is not empty, selecting one PUSCH from the set B1, and multiplexing HARQ-ACK on 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 the PUSCH overlapping with the PUCCH in the time domain;

the third method comprises the following steps: selecting a PUSCH indicated by scheduling DCI from PUSCHs which are overlapped with PUCCHs in a time domain, wherein the PUSCHs indicated by the scheduling DCI do not indicate a PUSCH of an uplink DAI domain and the PUSCHs without the scheduling DCI, and recording a set consisting of the selected PUSCHs as B2, wherein if the set B2 is not empty, one PUSCH is selected from the set B2 according to a specified method, and HARQ-ACK is multiplexed to the selected PUSCH; alternatively, if the set B2 is an empty set, the PUCCH is transmitted and the PUSCH overlapping with the PUCCH in the time domain is not transmitted.

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

According to an aspect of the invention, there is provided a method performed by a first type of transceiving node in a wireless communication system, comprising: sending first-class data and/or first-class control signaling to a second-class transceiving node; receiving a HARQ-ACK codebook from a second type of transceiving node in a 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 transmissions 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, the second priority being indicated by a second priority index.

According to an aspect of the present invention, there is provided a first type transceiving node in a wireless communication system, the first type transceiving node comprising: a transceiver configured to transmit first type data and/or first type control signaling to a second type transceiving node and to receive a HARQ-ACK codebook from the second type transceiving node in a time unit; and a controller configured to control overall operation of the first type of transceiving node, including: the control transceiver sends first type data and/or first type control signaling to the second type transceiving nodes and receives HARQ-ACK codebooks from the second type transceiving nodes 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 transmissions 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, 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, wherein:

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

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

fig. 3 shows a block diagram of a transceiving node of a first type 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

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. 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 within the art that, unless otherwise defined, 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. 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 will be understood by those skilled in the art, a "terminal" as used herein includes both devices that include a wireless signal receiver, which are devices having only a wireless signal receiver without transmit capability, and receiving and transmitting hardware devices, which have receiving and transmitting hardware devices capable of two-way communication over a two-way communication link. 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; a PCS (personal communications System), which may combine voice, data processing, facsimile and/or data communications capabilities; a PDA (personal digital assistant) which 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 device having and/or including a radio frequency receiver. As used herein, a "terminal" or "terminal device" may be portable, transportable, installed in a vehicle (aeronautical, maritime, and/or land-based), or situated and/or configured to operate locally and/or in a distributed fashion at any other location(s) on earth and/or in space. As used herein, a "terminal" and a "terminal device" may also be a communication terminal, a web terminal, and a music/video playing terminal, such as a PDA, an MID (mobile internet device) and/or a mobile phone with music/video playing function, and may also be a smart tv, a set-top box, and the like.

The 3GPP defines three major directions of a 5G application scenario, namely eMBB (mobile broadband enhancement), mtc (large-scale internet of things, more called mass machine type communication), URLLC (ultra-high reliable ultra-low latency communication). The eMBB scene is mainly used for pursuing the extremely consistent communication experience among people for further improving the performance of user experience and the like on the basis of the existing mobile broadband service scene. mMTC and URLLC are application scenarios of the Internet of things, but the respective emphasis points are different: mMTC is mainly information interaction between people and objects, and URLLC mainly embodies the communication requirements between the objects. The eMBBs and URLLC of the 5G adopt a joint networking mode to support both URLLC services and eMBBs in the same cell. Because URLLC traffic may be sparse traffic, compared with URLLC single-network, eMBB and URLLC joint-network may improve system spectrum efficiency. When the system has the URLLC service, the URLLC service is preferentially scheduled, and when the system has no URLLC service or the resource occupied by the URLLC service is less, the eMBB service can be scheduled. At present, when a URLLC service and an eMBB service conflict, data and/or control information of the URLLC service may be preferentially transmitted, at this time, the performance of the eMBB service may be lost, and how to optimize transmission of the data and control information of the eMBB service is urgent to solve.

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 transceiving node of a second type 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 herein by the second type of transceiving node, but is not meant to imply physical or architectural limitations to the manner in which different embodiments may be implemented, and 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 a first type transceiving node and to transmit second type data and/or second type control signaling to the first type transceiving node at a determined time unit.

The controller 102 may be a circuit application 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, as well as to control the second type of transceiving node to implement the method proposed in the present invention. Specifically, the controller 102 may be configured to determine, based on the first type of data and/or the first type of control signaling, 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, and 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 transceiver node may be a BS (Base Station), and the second type of transceiver node may be a UE (User Equipment). In the following examples, the base station is taken as an example (but not limited to) to describe the first type of transceiving node, and the UE is taken as an example (but not limited to) to describe the second type of transceiving node.

The first type of data may be data transmitted by the first type of transceiving node to the second type of transceiving node, and in the following example, the first type of data is exemplified by (but not limited to) Downlink data carried by a PDSCH (Physical Downlink Shared CHannel).

The second type of data may be data transmitted by the second type of transceiving node to the first type of transceiving node, and in the following example, the second type of data is exemplified by (but not limited to) Uplink data carried by a PUSCH (Physical Uplink Shared CHannel).

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 by a PDCCH (Physical Downlink Control CHannel) and/or Control signaling carried by a PDSCH (Physical Downlink Shared CHannel).

The second type of control signaling may be control signaling sent 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 by taking the uplink control signaling as an example (but not limited to). The Uplink Control signaling may be UCI (Uplink Control information) carried through a PUCCH (Physical Uplink Control CHannel) and/or Control signaling carried through a PUSCH (Physical Uplink Shared CHannel). The type of UCI may include HARQ-ACK Information, SR (Scheduling Request), LRR (link recovery Request), and CSI (channel State Information).

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

The second type time unit is a time unit for the second type transceiving 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 uplink time unit as an example (but not limited to).

The first type time unit and the second type 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 network infrastructure components that provide wireless access for remote terminals. Further, 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 a" 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 a BS, whether the UE is a mobile device (such as a mobile phone or smartphone) or a commonly-considered stationary device (e.g., a desktop computer or vending machine).

Fig. 2 shows a flow diagram of a method performed by a UE according to one 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 an uplink time unit, an uplink physical channel and power for transmitting the second type of data and/or the second type of control signaling for transmitting the uplink data and/or the uplink control signaling based on the downlink data and/or the downlink control signaling.

In step 203, the UE transmits uplink data and/or uplink control signaling to the base station at the determined power for transmitting the second type of data and/or the second type of control signaling in the determined uplink time unit.

In some embodiments, the UE may be configured with two levels of priority for uplink transmissions. For example, the two levels of priority may include a first priority and a second priority that are 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., the UE may be configured with more than two levels of priority. For convenience, in the embodiments of the present disclosure, the description is made in consideration that the first priority is higher than the second priority.

In one example, 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 the first priority and the smaller priority index (e.g., priority index 0) may be the second priority. However, embodiments of the present disclosure are not so limited, e.g., other priority indices or indicators may be used to indicate a two-level priority. For convenience, in the embodiment of the present disclosure, the description is made in consideration 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). Additionally, 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 priority, and a smaller priority index (e.g., priority index 0) may be used interchangeably with a second priority or lower priority.

In some embodiments, the two levels of priority with which the UE is configured may be two levels of physical layer priority. For example, one 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)) of two levels of priorities may be provided for the PUSCH or PUCCH. In particular, one PUSCH or PUCCH transmission (including repeated transmission 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 scheduling-free PUSCH transmission, the UE may determine the priority index according to 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-codebook id (if configured). The priority index of a certain PUSCH or PUCCH transmission of a UE may be 0 if the priority index is not configured for the PUSCH or PUCCH transmission.

The priority indication field may provide a priority index if the UE monitors the PDCCH to detect DCI format 0_1 and DCI format 1_1, or DCI format 0_2 and DCI format 1_2 in the activated DL BWP. If the UE indicates that it is able to monitor PDCCH in active 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 with 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

A pdsch-HARQ-ACK-Codebook configuration corresponding to the first HARQ-ACK Codebook and the 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 the second priority (e.g., a smaller priority index (e.g., priority index 0)), and the priority of the second HARQ-ACK codebook may be the first priority (e.g., a larger priority index (e.g., priority index 1)).

When a PUCCH with a smaller priority index (e.g., priority index 0) overlaps with a PUCCH with a larger priority index (e.g., priority index 1) in the time domain, 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 SR of the larger priority index (e.g., priority index 1) and/or LRR of the larger priority index (e.g., priority index 1), the UE multiplexes 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) 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) and 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) into one PUCCH, the UE does not transmit CSI of the smaller priority index (e.g., priority index 0), and/or the UE does not transmit the smaller priority index (e.g., priority index 0) and/or LRR of a smaller priority index (e.g., priority index 0).

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

Alternatively, the UE may report that HARQ-ACKs and SRs supporting a smaller priority index (e.g., priority index 0) are multiplexed with HARQ-ACKs and SRs of a larger priority index (e.g., priority index 1). The UE multiplexes HARQ-ACK of a larger priority index (e.g., priority index 1) included in a PUCCH of a larger priority index (e.g., priority index 1), and/or HARQ-ACK and SR of a SR of the larger priority index (e.g., priority index 1) and a smaller priority index (e.g., priority index 0) included in a PUCCH of a 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) and the HARQ-ACK of the smaller priority index (e.g., priority index 0), and/or the SR, and/or the LRR contained in the PUCCH of the larger priority index (e.g., priority index 1) into one PUCCH, and the UE does not transmit the CSI of the smaller priority index (e.g., priority index 0). Alternatively, the UE multiplexes HARQ-ACKs of a larger priority index (e.g., priority index 1) and HARQ-ACKs of a smaller priority index (e.g., priority index 0) into one PUCCH, the UE does not transmit CSI of the smaller priority index (e.g., priority index 0), and/or the UE does not transmit SR and/or LRR of the smaller priority index (e.g., priority index 0).

Optionally, the UE may report whether the capability supports multiplexing the UCI with different priority indexes. For example, the UE may report that HARQ-ACKs supporting a smaller priority index (e.g., priority index 0) are multiplexed with HARQ-ACKs of a larger priority index (e.g., priority index 1). The UE multiplexes HARQ-ACK of a larger priority index (e.g., priority index 1) contained in PUCCH of a larger priority index (e.g., priority index 1) with HARQ-ACK of a smaller priority index (e.g., priority index 0) contained in 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).

Alternatively, the UE may report that HARQ-ACKs and SRs supporting a smaller priority index (e.g., priority index 0) are multiplexed with HARQ-ACKs of a larger priority index (e.g., priority index 1). The UE multiplexes HARQ-ACK of a larger priority index (e.g., priority index 1) included in a PUCCH of a larger priority index (e.g., priority index 1) and HARQ-ACK and SR of a smaller priority index (e.g., priority index 0) included in a 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 transmission time units 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 the same, the PUCCH transmission time units of each larger priority index (e.g., priority index 1) may be processed when the 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 a 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) + d _1 after the last symbol received by the first PDCCH.

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

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

A first PUCCH having a larger priority index and a second PUCCH having a smaller priority index are scheduled by the first DCI format in the first PDCCH reception, and transmission of the first PUCCH will overlap 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 for transmission 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+ d 1. 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 that overlaps the first PUCCH in the time domain.

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

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

TABLE 1 PUSCH prepare time for UE processing capability 1

μ	PUSCH preparation time N₂[ OFDM symbolNumber of]
		0	10
1	12
		2	23
3	36

TABLE 2 PUSCH prepare time for UE processing capability 1

μ	PUSCH preparation time N₂[ number of OFDM symbols]
		0	5
1	5.5
		2	11for frequency range 1

The method defines the timing relation which the UE should satisfy when multiplexing the 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 an overlap in the time domain between a PUCCH with a smaller priority index (e.g., priority index 0) and a PUSCH with a larger priority index (e.g., priority index 1), how to determine the timing relationship that the multiplexing should satisfy is a problem to be solved.

The PUSCH having a larger priority index, the PUCCH having a smaller priority index, is scheduled by one DCI format in one PDCCH reception, and transmission of the PUSCH will overlap in time with transmission of the PUCCH, and UCI information carried by the PUCCH may be multiplexed onto the PUSCH for transmission when the start time of the PUCCH minus the end time of the PDCCH is greater than or equal to T2+ d 2. 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 that overlaps the PUSCH in the time domain.

The UE may report whether the capability supports multiplexing the UCI carried by the cancelled lower priority PUCCH with the higher priority PUSCH. If the function is supported by the reporting capability of the UE, the base station can start the function through higher layer signaling configuration. And the UE multiplexes the UCI carried by the cancelled PUCCH with lower priority and the PUSCH with higher priority.

T2 may be a preparation time for PUSCH, and T2 may be determined according to UE processing capability type, μ, and N2. For example, when the UE configures the parameter processtype 2Enabled, T2 is determined from table 2, otherwise, T2 is determined from 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 relationship which the UE should satisfy when multiplexing the UCI and the uplink data 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 an overlap in time domain between a PUCCH with a smaller priority index (e.g., priority index 0) and a PUSCH with at least one larger priority index (e.g., priority index 1), how to determine which PUSCH with a smaller priority index (e.g., priority index 0) is multiplexed with a PUSCH with a larger priority index (e.g., priority index 1) and how to multiplex UCI information carried by the PUSCH is a problem to be solved

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

A PUSCH of one larger priority index (e.g., priority index 1) may contain HARQ-ACK 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 case the number of PUSCHs of a larger priority index (e.g., priority index 1) is more than 1:

first, the UE multiplexes HARQ-ACK 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 do 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 the method specified by 3GPP TS38.213 and then multiplex HARQ-ACK and/or CSI of a smaller priority index (e.g., priority index 0) to the selected PUSCH. The UE does not transmit SR and/or LRR of smaller priority index (e.g., priority index 0). Optionally, the UE does not send CSI for a smaller priority index (e.g., priority index 0) of the smaller priority indexes (e.g., priority index 0).

Alternatively, the UE selects one PUSCH from PUSCHs of a larger priority index (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 amount may be a Resource Element (RE) amount, a Resource Block (RB) amount, or an amount of REs excluding a Demodulation Reference Signal (DMRS), or an amount of REs that may carry UCI. Alternatively, if the number of PUSCHs of a larger priority index (e.g., priority index 1) that does not contain UCI information satisfying the 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) that contain UCI information.

Optionally, the first mode may be based on the reporting capability of the UE. For example, the UE may report support multiplexing HARQ-ACK 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. Alternatively, the UE may report support multiplexing HARQ-ACK 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). Alternatively, the UE may report support multiplexing HARQ-ACK 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 type of UCI information included in the UE.

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

Optionally, the second mode may be based on the reporting capability of the UE. The UE may report support multiplexing HARQ-ACKs of a smaller priority index (e.g., priority index 0) onto a PUSCH of a larger priority index (e.g., priority index 1) containing UCI information. When the UE reports that the capability is supported, the base station can configure the UE in a second mode through higher layer signaling.

Third, if the resource of the PUSCH containing the larger priority index (e.g., priority index 1) of the UCI information can carry the HARQ-ACK information of the smaller priority index (e.g., priority index 0), the UE multiplexes the HARQ-ACK of the smaller priority index (e.g., priority index 0) onto the PUSCH containing the larger priority index (e.g., priority index 1) of the UCI information. Otherwise, the UE multiplexes HARQ-ACKs of a smaller priority index (e.g., priority index 0) onto the PUSCH of a larger priority index (e.g., priority index 1) that does not contain UCI information. The 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 mode, the UE selects one PUSCH from the PUSCHs of a larger priority index (e.g., priority index 1) that satisfy the 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 DMRSs, or the number of REs that may carry UCI. For example, the UE may select one PUSCH from PUSCHs of a larger priority index (e.g., priority index 1) satisfying a predefined condition according to a method specified by 3GPP TS38.213, and then multiplex HARQ-ACK and/or CSI of a smaller priority index (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 a predefined condition is 1 and UCI information of the larger priority index (e.g., priority index 1) is contained, 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 the PUCCH of the smaller priority index (e.g., priority index 0) and UCI information of the smaller priority index (e.g., priority index 0).

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

When a PUCCH with a smaller priority index (e.g., priority index 0) overlaps with a PUSCH with at least one smaller priority index (e.g., priority index 0) in the time domain, 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, from the PUSCHs of the smaller priority index (e.g., priority index 0), the PUSCHs of the smaller priority index (e.g., priority index 0) that do not conflict with the PUSCH of the larger priority index (e.g., priority index 1) to form a set a 0. The collision means that two PUSCHs cannot be transmitted simultaneously, so that the UE only transmits the PUSCH with higher priority, but not transmits the PUSCH with lower priority. The collision may be that there is an overlap in the time domain of the two PUSCHs on the active BWP of the same carrier. The collision may also be that two PUSCHs on the same carrier have an overlap in the time domain.

The UE multiplexes HARQ-ACK and/or CSI of 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 to multiplex HARQ-ACK and/or CSI for a smaller priority index (e.g., priority index 0) in set a0 according to the method specified by 3GPP TS 38.213. Or the UE may select one PUSCH to multiplex HARQ-ACK and/or CSI of a smaller priority index (e.g., priority index 0) in set a0 according to the methods of other embodiments of the present aspect.

The method solves the problem of multiplexing the PUCCH of a smaller priority index (e.g., priority index 0) with the PUSCH of which smaller priority index (e.g., priority index 0). The method avoids multiplexing the UCI with low priority on the PUSCH with low priority which conflicts with the PUSCH with high priority, 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 spectrum efficiency of a network.

When there is an overlap in the time domain between a PUCCH with a larger priority index (e.g., priority index 1) and a PUSCH with at least one smaller priority index (e.g., priority index 0), how to determine which PUSCH the PUCCH with 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.

A PUSCH 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), and/or uplink data of the smaller priority index (e.g., priority index 0).

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

first, the UE multiplexes HARQ-ACK of a larger priority index (e.g., priority index 1), and/or SR, and/or LRR onto PUSCH of a smaller priority index (e.g., priority index 0) that does not contain UCI information.

Optionally, the UE may report support multiplexing HARQ-ACK and/or CSI 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. Alternatively, the UE may report support multiplexing HARQ-ACK and/or CSI 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 HARQ-ACK and/or CSI.

If the number of PUSCHs of a smaller priority index (e.g., priority index 0) that do 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 the method specified in 3GPP TS38.213, and then multiplexes the HARQ-ACK of a larger priority index (e.g., priority index 1), and/or the SR, and/or the LRR to the selected PUSCH.

Alternatively, the UE selects one PUSCH from among PUSCHs of smaller priority index (e.g., priority index 0) that do not contain UCI information 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 DMRSs, or the number of REs that may carry UCI.

In a second way, the UE multiplexes HARQ-ACK of a larger priority index (e.g., priority index 1), and/or SR, and/or LRR onto PUSCH of a smaller priority index (e.g., priority index 0) containing UCI information.

Optionally, the UE may report support multiplexing HARQ-ACK and/or CSI of a larger priority index (e.g., priority index 1) onto PUSCH containing UCI information of a smaller priority index (e.g., priority index 0). Alternatively, the UE may report support multiplexing HARQ-ACK and/or CSI for a larger priority index (e.g., priority index 1) onto PUSCH containing HARQ-ACK and/or CSI for a smaller priority index (e.g., priority index 0).

Third, if the resource of the PUSCH containing the smaller priority index (e.g., priority index 0) of the UCI information can carry the HARQ-ACK of the larger priority index (e.g., priority index 1), and/or the SR, and/or the LRR information, the UE multiplexes the HARQ-ACK of the larger priority index (e.g., priority index 1), and/or the SR, and/or the LRR onto the PUSCH containing the smaller priority index (e.g., priority index 0) of the UCI information. Otherwise, the UE multiplexes HARQ-ACK of a larger priority index (e.g., priority index 1), and/or SR, and/or LRR onto PUSCH of a smaller priority index (e.g., priority index 0) that does not contain UCI information. The PUSCH of a smaller priority index (e.g., priority index 0) that does not contain UCI information may be determined according to the first manner.

In a fourth mode, the UE selects one PUSCH from the PUSCHs of smaller priority index (e.g., priority index 0) that satisfy the 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 DMRSs, 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 the SCS (sub-carrier space) of the PUSCH may be different for each carrier, the number of OFDM symbols may be referenced to the SCS of the PUCCH. The predefined condition may also be that the transmission time of the PUSCH is less than a threshold value. The UE selects one PUSCH among the PUSCHs of a smaller priority index (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 a smaller priority index (e.g., priority index 0) satisfying a predefined condition according to a method specified by 3GPP TS38.213, and then multiplex HARQ-ACK, and/or SR, and/or LRR of a larger priority index (e.g., priority index 1) 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 UCI information of the smaller priority index (e.g., priority index 0) is included, the UE does not transmit the PUSCH of the smaller priority index (e.g., priority index 0), and the UE multiplexes the UCI of the smaller priority index (e.g., priority index 0) and the UCI of the larger priority index (e.g., priority index 1) on one PUCCH.

Optionally, if there is no smaller priority PUSCH that meets the predefined condition, the UE does not transmit a smaller priority index (e.g., priority index 0) PUSCH.

Optionally, the UE multiplexes HARQ-ACK, and/or SR, and/or LRR of a larger priority index (e.g., priority index 1) to at least one PUSCH of a smaller priority index (e.g., priority index 0) with the earliest starting transmission time.

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

The method solves the problem of multiplexing the PUCCH with a larger priority index (such as priority index 1) with which PUSCH, and can reduce the time delay of low-priority UCI multiplexing, improve the reliability of high-priority UCI transmission and improve the reliability of low-priority PUSCH transmission. The second mode is simpler to realize and has less influence on the protocol. The third way can increase the reliability of low priority PUSCH transmission. And the fourth mode can improve the reliability of high-priority UCI transmission and can also improve the reliability of low-priority PUSCH transmission.

When there is an overlap in time domain between a PUSCH carrying a smaller priority index (e.g., priority index 0) of UCI of a smaller priority index (e.g., priority index 0) and a PUSCH carrying a larger priority index (e.g., priority index 1) on one carrier, how to determine a multiplexing method of UCI of the smaller priority index (e.g., priority index 0) is a problem to be solved.

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

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

The predefined condition may be that the number of resources of the 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 DMRSs, or the number of REs that may carry UCI of a smaller priority index (e.g., priority index 0). Alternatively, the predefined condition may also be that the 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). Alternatively, the predefined condition may also be that the 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 be that the UE capability is reported to support this function. For example, the UE may report support multiplexing HARQ-ACK 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). Alternatively, the UE may report support multiplexing HARQ-ACK 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. Alternatively, the UE may report support multiplexing HARQ-ACK and/or CSI of a smaller priority index (e.g., priority index 0) onto PUSCH containing HARQ-ACK and/or CSI of a larger priority index (e.g., priority index 1).

When there are a plurality of PUSCHs of a larger priority index (e.g., priority index 1) overlapping with PUSCHs of a smaller priority index (e.g., priority index 0) in the time domain, the UE may select a PUSCH of one larger priority index (e.g., priority index 1) according to the method of the other embodiment of the present invention, 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).

It should be noted that, part of the UCI information may be HARQ-ACK information.

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

The HARQ-ACK codebook of a certain priority of the UE is a semi-static codebook, e.g., the HARQ-ACK codebook of a smaller priority index (e.g., priority index 0) is a semi-static codebook. Uplink DAI field indication in uplink DCI format

When the UE multiplexes the semi-static HARQ-ACK codebook to the DCI scheduled PUSCH, otherwise, the UE does not multiplex the HARQ-ACK codebook to the DCI scheduled PUSCHMultiplexed to this PUSCH.

The base station schedules 2 PUSCHs for the UE, wherein DCI #1 schedules PUSCH #1, and DCI #2 schedules PUSCH # 2. The 2 PUSCHs are overlapped with a PUCCH carrying HARQ-ACK on a time domain, the base station expects the UE to multiplex the HARQ-ACK to a PUSCH #2, and the DCI #2 indicates

The base station does not expect the UE to multiplex HARQ-ACK to PUSCH #1, DCI #1 indicates

If the UE does not decode DCI #2 correctly, in case that PUCCH and PUSCH #1 overlap in time domain, the UE expects to multiplex HARQ-ACK carried in PUCCH to PUSCH #1, and DCI #1 indicates that the UE does not transmit HARQ-ACK on PUSCH #1, where the UE behavior is undefined, in order to solve this problem, the following method may be adopted.

In the first mode, the UE selects one PUSCH from the PUSCHs that overlap with the PUCCHs 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 the PUSCHs that overlap with the PUCCH in the time domain according to the method specified in 3GPP TS 38.213. DCI indication if this PUSCH is scheduled

The UE transmits PUCCH and the UE does not transmit PUSCH overlapping with PUCCH in the time domain. Or, the UE simultaneously transmits the PUCCH and the PUSCH overlapping with the PUCCH in the time domain. Or, the UE disregards the indication of the uplink DAI domain, and the UE multiplexes the HARQ-ACK information on the PUSCH for transmission.

In the second mode, the UE selects the scheduling DCI indication from the PUSCH which overlaps with the PUCCH in the time domain

And a set of these PUSCHs is denoted as B0. If the set B0 is not empty, the UE selects a PUSCH from the set B0. The UE selects one PUSCH from set B0 according to a prescribed method. For example, the UE may select one PUS from set B0 according to the method specified in 3GPP TS38.213And (CH). The UE multiplexes HARQ-ACKs onto this selected PUSCH. The UE does not multiplex HARQ-ACK information onto other PUSCHs in set B0. Alternatively, if set B0 is not empty, the UE multiplexes HARQ-ACKs on all PUSCHs in set B0.

Optionally, if the set B0 is an empty set, the UE selects, from PUSCHs that overlap with the PUCCH in the time domain, a PUSCH in which the scheduling DCI does not indicate the uplink DAI domain and a PUSCH in which the DCI is not scheduled, and the set formed by these PUSCHs is denoted as B1. If the set B1 is not empty, the UE selects a PUSCH from the set B1. The UE selects one PUSCH from set B1 according to a prescribed method. For example, the UE may select one PUSCH from set B1 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 B1.

Optionally, 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 with the PUCCH in the time domain. Alternatively, the UE selects one PUSCH from the PUSCHs that overlap with the PUCCHs in the time domain according to a predefined method. For example, the UE may select one PUSCH from the PUSCHs that overlap with the PUCCH in the time domain according to the method specified in 3GPP TS38.213, multiplex HARQ-ACK on the PUSCH, and ignore the indication of the uplink DAI domain. Or the UE simultaneously transmits the PUCCH and the PUSCH which is overlapped with the PUCCH in a time domain.

Third mode, the UE selects the scheduling DCI indication from the PUSCH which overlaps with the PUCCH in the time domain

PUSCH (2), PUSCH without scheduling DCI indicating uplink DAI field, and PUSCH without scheduling DCI, these PUSCHs are grouped as 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 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.

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

It should be noted that, if CSI is included in PUCCH, CSI may be handled in the same manner as HARQ-ACK.

It should be noted that, one PUCCH and one PUSCH in one PUCCH time unit do not overlap in time domain, at least a part of this PUSCH overlaps with this PUCCH time unit, and the base station may indicate, through an uplink DAI indicating DCI for scheduling this PUSCH, that the base station may indicate

The UE may multiplex HARQ-ACK and/or CSI in this PUCCH onto PUSCH at this time. Optionally, the sets B0 and B2 may further include the PUSCH.

Note that, for the uplink DAI indication

The UE multiplexes HARQ-ACK information onto 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 the HARQ-ACK codebook according to 3GPP TS 38.2139.1.2.1, and if the UE does not detect PDSCH or DCI requiring feedback of HARQ-ACK, the bits of HARQ-ACK are all NACK.

Note that if an uplink DAI indication is provided

The UE selects one PUCCH carrying HARQ-ACK from the PUCCH time units satisfying the multiplexing timing relationship. If all PUCCH time units meeting 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 can determine the HARQ-ACK code according to higher layer signaling configurationThe size of the codebook and the determination of the HARQ-ACK codebook. For example, the UE may generate a HARQ-ACK codebook according to 3GPP TS 38.2139.1.2.1, with the bits of the HARQ-ACK all being NACKs.

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 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 user plane time delay is reduced.

Fig. 3 shows a block diagram of a transceiving node of a first type 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 to the manner in which different embodiments may be implemented, but rather may implement different embodiments of the present disclosure in any suitably arranged system.

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

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

The controller 302 may be a circuit application 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 describe a first type of transceiving node, a UE is taken as an example (but not limited to) to describe a second type of transceiving node, a downlink time unit is taken as a (but not limited to) to describe a first type of time unit, and an uplink time unit is taken as a (but not limited to) to describe a time unit. The first type of data and/or the first type of control signaling are illustrated with, but not limited to, downlink data and/or downlink control signaling. The HARQ-ACK codebook may be included in the second type of control signaling, which is illustrated with, but not limited to, uplink control signaling.

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

In step 402, the base station receives a second type of data and/or a second type of control signaling from the UE in an uplink time unit, wherein the second type of data and/or the second type of 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 of data and/or the second type of control signaling based on methods corresponding to those performed by the UE in the above 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 disclosed invention, 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 would understand that the various illustrative logical blocks, modules, circuits, and steps described in this application 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 implementation decisions should not be interpreted as causing a departure from the scope of the present application.

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 this application 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 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 only for the purpose of easy 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 changes or forms of modifications and changes 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 second type of transceiving node in a wireless communication system, comprising:

receiving first type data and/or first type control signaling from a first type transceiving 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 type transceiving node in the determined time unit,

wherein the second type of transceiving node is configured with two levels of priority for transmissions to the first type of transceiving node, 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.

2. The method of claim 1, further comprising, when one Physical Uplink Control Channel (PUCCH) of a first priority index overlaps one PUCCH of a second priority index in a time domain, determining 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 a Scheduling Request (SR) and/or a Link Recovery Request (LRR).

3. The method of claim 2, wherein if the PUCCH of the second priority index contains SR and/or LRR, HARQ-ACK, and/or SR, and/or LRR contained in the PUCCH of the second priority index is multiplexed with HARQ-ACK contained in the PUCCH of the first priority index into one PUCCH, the channel state information CSI of the first priority index is not transmitted, and/or the SR and/or LRR of the first priority index is not transmitted.

4. The method of claim 2, wherein if the PUCCH of the second priority index does not contain SR and/or LRR, the HARQ-ACK contained in the PUCCH of the second priority index is multiplexed with the HARQ-ACK, and/or SR, and/or LRR contained in the PUCCH of the first priority index into one PUCCH, without transmitting CSI of the first priority index; or, the HARQ-ACK contained in the PUCCH with the second priority index and the HARQ-ACK contained in the PUCCH with the first priority index are multiplexed into one PUCCH, the CSI of the first priority index is not transmitted, and/or the SR and/or LRR of the first priority index is not transmitted.

5. The method of claim 1, further comprising, when one first priority index PUCCH overlaps at least one second priority index PUSCH in the time domain, multiplexing based on one of:

6. The method of claim 1, further comprising, when one first priority indexed PUCCH overlaps at least one first priority indexed PUSCH in time domain, selecting a first priority indexed PUSCH out of the first priority indexed PUSCHs without collision with a second priority indexed PUSCH to constitute a set a0, and multiplexing the first priority indexed HARQ-ACK and/or CSI onto one PUSCH in the set a0 according to a prescribed method.

7. The method of claim 1, further comprising, when one second priority index PUCCH overlaps at least one first priority index PUSCH in the time domain, multiplexing based on one of:

8. The method of claim 1, further comprising, when a first priority indexed PUSCH carrying UCI of a first priority index overlaps a second priority indexed PUSCH in a time domain, multiplexing all or part of information of UCI of the first priority index onto the second priority indexed PUSCH if the second priority indexed PUSCH satisfies a predefined condition.

9. The method of claim 8, wherein the predefined condition is that a PUSCH of a second priority index does not contain UCI information of the second priority index; or, the predefined condition is that the PUSCH of the second priority index does not contain the HARQ-ACK information of the second priority index.

10. The method of claim 1, further comprising, when the HARQ-ACK codebook of a certain priority is a semi-static codebook, multiplexing the semi-static HARQ-ACK codebook onto a PUSCH in case that more than one PUSCH overlaps with a PUCCH carrying the HARQ-ACK in a time domain by one of:

the second method comprises the following steps: selecting a scheduling DCI indication from a PUSCH that overlaps with a PUCCH in a time domain

The selected PUSCH, the set of the selected PUSCHs is recorded as B0, wherein, if the set B0 is not empty, one PUSCH is selected from the set B0, and HARQ-ACK is multiplexed onto the selected PUSCH, or HARQ-ACK is multiplexed onto all PUSCHs in the set B0, or HARQ-ACK is multiplexed onto a part of PUSCHs in the set B0; and/or if the set B0 is an empty set, selecting a PUSCH with scheduling DCI not indicating an uplink DAI domain and a PUSCH without scheduling DCI from PUSCHs overlapped with the PUCCH in a time domain, and marking the set formed by the selected PUSCHs as B1, wherein if the set B1 is not empty, selecting one PUSCH from the set B1, and multiplexing HARQ-ACK on the selected PUSCH; and/or if the set B0 is an empty set and the set B1 is an empty set, transmitting the PUCCH and not transmitting the PUSCH which overlaps with the PUCCH in the time domain;

the third method comprises the following steps: selecting a scheduling DCI indication from a PUSCH that overlaps with a PUCCH in a time domain

Scheduling DCI does not indicate PUSCH of an uplink DAI domain and PUSCH without scheduling DCI, and marking a set consisting of the selected PUSCHs as B2, wherein if the set B2 is not empty, one PUSCH is selected from the set B2 according to a specified method, and HARQ-ACK is multiplexed to the selected PUSCH; alternatively, if the set B2 is an empty set, the PUCCH is transmitted and the PUSCH overlapping with the PUCCH in the time domain is not transmitted.

11. A second type of transceiving node in a wireless communication system, comprising:

a transceiver configured to:

receiving first type data and/or first type control signaling from a first type transceiving node; and

transmitting an HARQ-ACK codebook to the first type of transceiving nodes in a time unit;

a controller configured to control overall operation of the second type of transceiving node, comprising:

determining a HARQ-ACK codebook and the time unit for transmitting the HARQ-ACK codebook based on the first type data and/or the first type control signaling; and

controlling the transceiver to transmit the HARQ-ACK codebook to a first class of transceiving nodes in the determined time unit,

12. A method performed by a first type of transceiving node in a wireless communication system, comprising:

sending first-class data and/or first-class control signaling to a second-class transceiving node;

receiving a HARQ-ACK codebook from a second type of transceiving node in a time unit;

wherein the HARQ-ACK codebook and the time unit are determined by a second type transceiving node based on received first type data and/or first type control signaling,

13. A first type transceiving node in a wireless communication system, the first type transceiving node comprising:

a transceiver configured to transmit first type data and/or first type control signaling to a second type transceiving node and to receive a HARQ-ACK codebook from the second type transceiving node in a time unit; and

a controller configured to control overall operation of the first type of transceiving node, comprising:

the control transceiver sends first type data and/or first type control signaling to the second type transceiving nodes and receives HARQ-ACK codebooks from the second type transceiving nodes in the time unit;