CN114765885A

CN114765885A - Method for transmitting and receiving uplink control information

Info

Publication number: CN114765885A
Application number: CN202111212263.5A
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: 2021-01-13
Filing date: 2021-10-18
Publication date: 2022-07-19

Abstract

The invention provides a method for sending and receiving uplink control information, in particular to a method executed by a second type of transceiving node in a wireless communication system, which comprises the following steps: receiving first type data and/or first type control signaling from a first type transceiving node; and sending uplink control information UCI to the first type of receiving and sending nodes, wherein if a plurality of physical uplink control channels PUCCHs carrying different priority levels UCI are overlapped on a time domain, the plurality of PUCCHs are multiplexed and/or preempted.

Description

Method for transmitting and receiving uplink control information

Technical Field

The invention relates to a method for sending and receiving uplink control information. And more particularly, to determining a physical resource for transmitting UCI information according to UCI information of different priorities.

Background

In order to meet the increasing demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi-5G communication systems. Accordingly, the 5G or quasi-5G communication system is also referred to as a "super 4G network" or a "post-LTE system".

The 5G communication system is implemented in a higher frequency (millimeter wave) band (e.g., 60GHz band) to achieve a higher data rate. In order to reduce propagation loss of radio waves and increase transmission distance, beamforming, massive Multiple-Input Multiple-Output (MIMO), Full-Dimensional MIMO (FD-MIMO), array antenna, analog beamforming, massive antenna technology are discussed in the 5G communication system.

In addition, in the 5G communication system, development of improvement of a system Network is being performed based on advanced small cells, a cloud Access Network (RAN), an ultra-dense Network, device-to-device (D2D) communication, a wireless backhaul, a mobile Network, cooperative communication, Coordinated Multi-Points (CoMP), reception side interference cancellation, and the like.

In the 5G system, hybrid FSK and QAM Modulation (FQAM) and Sliding Window Superposition Coding (SWSC) have been developed as Advanced Coding Modulation (ACM), and Filter Bank Multi-Carrier (FBMC), Non-Orthogonal Multiple Access (NOMA ) and Sparse Code Multiple Access (SCMA) as Advanced Access technologies.

Disclosure of Invention

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; and sending uplink control information UCI to the first type of receiving and sending nodes, wherein if a plurality of physical uplink control channels PUCCHs carrying different priority levels UCI are overlapped on a time domain, the plurality of PUCCHs are multiplexed and/or preempted.

Optionally, the UCI includes one or more of: automatic repeat request-acknowledgement HARQ-ACK, scheduling request SR, channel state information CSI.

Optionally, if there is an overlap in time domain of the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority SR, multiplexing the plurality of PUCCHs according to one of: the number of bits of the lower priority HARQ-ACK and/or the format of the PUCCH carrying the lower priority HARQ-ACK and/or the number of symbols of the PUCCH; the bit number of PUCCH format carrying higher priority SR and/or lower priority HARQ-ACK and/or the symbol number of PUCCH format carrying lower priority HARQ-ACK and/or the PUCCH; a starting symbol and/or an ending symbol of a PUCCH carrying a higher priority SR and/or a starting symbol and/or an ending symbol of a PUCCH carrying a lower priority HARQ-ACK; a starting symbol and/or an ending symbol of a PUCCH carrying a higher priority SR and/or a starting symbol and/or an ending symbol of a PUCCH carrying a lower priority HARQ-ACK and/or a PUCCH format carrying a higher priority SR and/or a number of bits of a lower priority HARQ-ACK and/or a format of a PUCCH carrying a lower priority HARQ-ACK and/or a number of symbols of the PUCCH.

Optionally, if the PUCCH carrying the lower priority HARQ-ACK overlaps with the PUCCH carrying the higher priority SR in time domain, and the PUCCH carrying the lower priority HARQ-ACK has associated DCI or DCI format or PDCCH, determining whether multiplexing the plurality of PUCCHs is supported according to an indication in the DCI or DCI format or PDCCH; otherwise, if the PUCCH carrying the lower priority HARQ-ACK does not have associated DCI or DCI format or PDCCH, determining whether multiplexing the plurality of PUCCHs is supported according to a higher layer signaling parameter.

Optionally, the time units multiplexed and/or preempted on the plurality of PUCCHs with different priorities are slots, higher priority PUCCH time units or lower priority PUCCH time units.

Optionally, the length of the time unit is determined according to one of: maximum of lower priority PUCCH time units and higher priority PUCCH time units; a minimum of lower priority PUCCH time units and higher priority PUCCH time units; a least common multiple of lower priority PUCCH time units and higher priority PUCCH time units.

Optionally, the PUCCHs in one slot that satisfy the first specific condition are grouped into a set Q1.

Optionally, the PUCCHs in the set Q1 are ordered according to at least one of the following rules: sorting the PUCCH time units according to the time sequence of the PUCCH time units; sequencing PUCCHs in one PUCCH time unit according to the sequencing priority of the loaded UCI; if one PUCCH overlaps with a plurality of PUCCH time units, ordering the PUCCH through a predefined rule; for a PUCCH carrying multiple UCI types, sorting the PUCCH according to a first predefined rule according to the highest priority of the UCIs carried by the PUCCH; sequencing PUCCHs carrying the same UCI type according to a second predefined rule; and deleting the PUCCH carrying the negative SR which does not overlap with the PUCCH carrying the HARQ-ACK and/or CSI in the time domain from the set Q1.

Optionally, the PUCCHs in the set Q1 are ordered according to at least one of the following rules: the PUCCH contained in the higher priority PUCCH time unit precedes the PUCCH contained in the lower priority slot; in the same PUCCH time unit, a PUCCH bearing the HARQ-ACK is positioned in front of a PUCCH bearing the SR; in the same PUCCH time unit, a PUCCH bearing higher priority HARQ-ACK is positioned in front of a PUCCH bearing lower priority HARQ-ACK; if the PUCCH carrying the lower priority HARQ-ACK is overlapped with one or more PUCCHs carrying UCI in a time domain, determining the ordering of the PUCCH carrying the lower priority HARQ-ACK according to the type of the UCI carried by the one or more PUCCHs and the priority of the UCI; for a PUCCH carrying multiple UCI types, sorting the PUCCH according to a first predefined rule according to the highest priority of the UCIs carried by the PUCCH; sequencing PUCCHs carrying the same UCI type according to a second predefined rule; and deleting the PUCCH carrying the negative SR which does not overlap with the PUCCH carrying the HARQ-ACK and/or CSI on the time domain from the set.

Optionally, multiplexing and/or preempting the plurality of PUCCHs comprises multiplexing and/or preempting PUCCHs of different priorities in an order of one of: multiplexing and/or preempting the PUCCH with higher priority, and multiplexing and/or preempting the PUCCH with lower priority and the PUCCH with higher priority; or multiplexing and/or preempting a PUCCH with higher priority, multiplexing and/or preempting a PUCCH with lower priority and a PUCCH carrying HARQ-ACK containing higher priority, and multiplexing and/or preempting a PUCCH with lower priority and a PUCCH carrying SR with higher priority; or multiplexing and/or preempting a PUCCH with lower priority and a PUCCH carrying a higher priority HARQ-ACK, multiplexing and/or preempting a PUCCH carrying a HARQ-ACK containing a higher priority and a PUCCH carrying a higher priority SR, and multiplexing and/or preempting a PUCCH with lower priority and a PUCCH carrying a higher priority SR.

Optionally, the time unit is a higher priority PUCCH time unit, and further includes: grouping the PUCCHs meeting a second specific condition in one higher priority PUCCH time unit into a set Q2; and if the PUCCH bearing the lower priority HARQ-ACK is overlapped with one or more higher priority PUCCH time units, the PUCCH bearing the lower priority HARQ-ACK is placed in a set Q2 in which one of the one or more higher priority PUCCH time units is located according to the UCI type carried by the PUCCH in the one or more higher priority PUCCH time units and the priority of the UCI.

Optionally, the PUCCHs in the set Q2 are ordered according to at least one of the following rules: the PUCCH bearing the HARQ-ACK is positioned in front of the PUCCH bearing the SR; the PUCCH bearing the higher priority HARQ-ACK is positioned before the PUCCH bearing the lower priority HARQ-ACK; for a PUCCH carrying multiple UCI types, sorting the PUCCH according to a third predefined rule according to the priority with the highest sorting priority in the multiple UCIs carried by the PUCCH; sequencing PUCCHs carrying the same UCI type according to a fourth predefined rule; and deleting the PUCCH carrying the negative SR which does not overlap with the PUCCH carrying the HARQ-ACK and/or CSI on the time domain from the set.

Optionally, the PUCCHs in the set Q2 are ordered according to at least one of the following rules: the PUCCH bearing the HARQ-ACK with higher priority is positioned before the PUCCH bearing the SR; the PUCCH bearing the higher priority HARQ-ACK is positioned before the PUCCH bearing the lower priority HARQ-ACK; the PUCCH carrying the higher priority SR is positioned before the PUCCH carrying the lower priority HARQ-ACK; the PUCCHs carrying the same UCI type are sorted according to a fifth predefined rule; and deleting the PUCCH carrying the negative SR which does not overlap with the PUCCH carrying the HARQ-ACK and/or CSI on the time domain from the set.

Optionally, the PUCCHs in the set Q2 are ordered according to at least one of the following rules: the PUCCH bearing the HARQ-ACK with higher priority is positioned in front of the PUCCH bearing the SR; the PUCCH bearing the higher priority HARQ-ACK is positioned before the PUCCH bearing the lower priority HARQ-ACK; the PUCCH carrying the lower priority HARQ-ACK is positioned in front of the PUCCH carrying the higher priority SR; for a PUCCH carrying multiple UCI types, sorting the PUCCH according to a sixth predefined rule according to the priority with the highest sorting priority in the multiple UCIs carried by the PUCCH; sequencing PUCCHs carrying the same UCI type according to a seventh predefined rule; and deleting the PUCCH carrying the negative SR which does not overlap with the PUCCH carrying the HARQ-ACK and/or CSI on the time domain from the set.

Optionally, the PUCCHs in the set Q2 are ordered according to at least one of the following rules: sorting according to the type of the loaded UCI; carrying PUCCHs of the same UCI type or PUCCHs of the same UCI type carrying the highest sequencing priority; and deleting the PUCCH carrying the negative SR which does not overlap with the PUCCH carrying the HARQ-ACK and/or CSI on the time domain from the set.

Optionally, multiplexing and/or preempting the plurality of PUCCHs comprises: multiplexing and/or preempting the PUCCH with higher priority; multiplexing and/or preempting the PUCCH carrying the lower priority HARQ-ACK with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR if the PUCCH carrying the lower priority HARQ-ACK overlaps the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain; multiplexing and/or preempting PUCCHs carrying SR with lower priority and/or PUCCHs carrying CSI and/or PUCCHs carrying HARQ-ACK with lower priority; if the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK overlaps with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain, the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR is transmitted, and the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK is not transmitted.

Optionally, the multiplexing and/or preempting the plurality of PUCCHs comprises: multiplexing and/or preempting the PUCCH with higher priority; multiplexing and/or preempting the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR if the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR overlap in a time domain; multiplexing and/or preempting PUCCH carrying SR of lower priority and/or PUCCH carrying CSI (PUCCH carrying HARQ-ACK of lower priority; if the PUCCH carrying lower priority SR and/or CSI overlaps with the PUCCH carrying higher priority HARQ-ACK and/or higher priority SR in the time domain, transmitting the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority, and not transmitting the PUCCH carrying the SR with lower priority and/or the CSI; if there is an overlap in the time domain of the PUCCH carrying the HARQ-ACK containing the lower priority and the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR, lower priority HARQ-ACKs and/or higher priority SRs are multiplexed to one PUCCH.

Optionally, the multiplexing and/or preempting the plurality of PUCCHs comprises: multiplexing and/or preempting the PUCCH carrying the lower priority HARQ-ACK with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR if the PUCCH carrying the lower priority HARQ-ACK overlaps the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain; multiplexing and/or preempting a PUCCH bearing a higher-priority HARQ-ACK, and a PUCCH bearing a higher-priority SR; multiplexing and/or preempting PUCCH carrying lower priority SR and/or PUCCH carrying CSI (e.g., lower priority CSI) and/or PUCCH carrying lower priority HARQ-ACK; if the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK overlaps with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain, the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR is transmitted, and the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK is not transmitted.

Optionally, the multiplexing and/or preempting the plurality of PUCCHs comprises: multiplexing and/or preempting the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR if the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR overlap in a time domain; multiplexing and/or preempting the PUCCH with higher priority; multiplexing and/or preempting PUCCHs carrying SRs with lower priority and/or PUCCHs carrying CSI and/or PUCCHs carrying HARQ-ACKs with lower priority; if the PUCCH carrying the SR and/or CSI with lower priority overlaps with the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority in the time domain, the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority is sent, and the PUCCH carrying the SR and/or CSI with lower priority is not sent; multiplexing the lower priority HARQ-ACK and/or the higher priority SR to one PUCCH if the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR overlap in time domain.

Optionally, the multiplexing and/or preempting the plurality of PUCCHs comprises: multiplexing and/or preempting the PUCCH with lower priority; multiplexing and/or preempting a PUCCH with higher priority; multiplexing and/or preempting the PUCCH carrying the HARQ-ACK with the lower priority and the PUCCH carrying the HARQ-ACK with the higher priority and/or the SR with the higher priority if the PUCCH carrying the HARQ-ACK with the lower priority and the PUCCH carrying the HARQ-ACK with the higher priority are overlapped on a time domain; if the PUCCH carrying the SR and/or CSI with lower priority overlaps with the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority in time domain, the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority is sent, and the PUCCH carrying the SR and/or CSI with lower priority is not sent.

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; transmitting uplink control information UCI to a first-class transceiving node in a time unit; a controller configured to control overall operation of the second type of transceiving node, comprising: the control transceiver receives first type data and/or first type control signaling from the first type transceiving node; controlling a transceiver to transmit UCI to a first type of transceiving node in the time unit; if a plurality of Physical Uplink Control Channels (PUCCHs) carrying UCIs with different priorities are overlapped on a time domain, multiplexing and/or preempting the PUCCHs.

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 uplink control information UCI from a second type transceiving node in a time unit; if a plurality of Physical Uplink Control Channels (PUCCHs) carrying different priority levels of UCI are overlapped on a time domain, the PUCCHs are multiplexed and/or preempted.

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: sending first-class data and/or first-class control signaling to a second-class transceiving node; receiving uplink control information UCI 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-class data and/or first-class control signaling to the second-class transceiving node; the control transceiver receives uplink control information UCI from the second type transceiving node in the time unit; if a plurality of Physical Uplink Control Channels (PUCCHs) carrying different priority levels of UCI are overlapped on a time domain, the PUCCHs are multiplexed and/or preempted.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments of the present disclosure will be briefly described below. Significantly, the drawings described below are directed to only some embodiments of the disclosure and not to limitations thereof, in which:

fig. 1 illustrates a schematic diagram of an example wireless network, in accordance with some embodiments of the present disclosure;

fig. 2A and 2B illustrate example wireless transmit and receive paths, according to some embodiments of the present disclosure;

fig. 3A illustrates an example User Equipment (UE) in accordance with some embodiments of the present disclosure;

fig. 3B illustrates an example gNB in accordance with some embodiments of the present disclosure;

fig. 4 shows a block diagram of a second type of transceiving node, according to an embodiment of the present disclosure;

FIG. 5 shows a flow diagram of a method performed by a UE in accordance with a disclosed embodiment;

6A-6C illustrate some examples of uplink transmission timing in accordance with embodiments of the present disclosure;

7A-7B illustrate some examples of ordering multiple PUCCHs according to embodiments of the present disclosure;

figures 8A-8C illustrate some examples of ordering and multiplexing multiple PUCCHs according to embodiments of the present disclosure;

fig. 9 illustrates one example of ordering and multiplexing a plurality of PUCCHs according to an embodiment of the present disclosure

Fig. 10 shows a block diagram of a first type of transceiving node according to an embodiment of the present disclosure; and

fig. 11 shows a flow chart of a method performed by a base station according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Before proceeding with the description of the specific embodiments below, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document. The term "couple" and its derivatives refer to any direct or indirect communication between two or more elements, whether or not those elements are in physical contact with one another. The terms "transmit," "receive," and "communicate," as well as derivatives thereof, encompass both direct and indirect communication. The terms "include" and "comprise," as well as derivatives thereof, mean inclusion without limitation. The term "or" is inclusive, meaning and/or. The phrase "associated with,. and its derivatives are intended to include, be included within, be connected to, be interconnected with, contain, be contained within, be connected to or be connected with, be coupled to or be coupled with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or be bound with, have,. properties, have,. relationships, or have relationships to. The term "controller" means any device, system, or part thereof that controls at least one operation. Such a controller may be implemented in hardware, or in a combination of hardware and software and/or firmware. The functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. At least one of the phrases "when used with a list of items means that different combinations of one or more of the listed items may be used and only one item in the list may be required. For example, "at least one of A, B and C" includes any one of the following combinations: A. b, C, A and B, A and C, B and C, and a and B and C. For example, "A, B or at least one of C" includes any one of the following combinations: A. b, C, A and B, A and C, B and C, and a and B and C.

Furthermore, the various functions described below may be implemented or supported by one or more computer programs, each computer program formed from computer readable program code and embodied in a computer readable medium. The terms "application" and "program" refer to one or more computer programs, software components, sets of instructions, procedures, functions, objects, classes, instances, related data, or a portion thereof adapted for implementation in suitable computer readable program code. The phrase "computer readable program code" includes any type of computer code, including source code, object code, and executable code. The phrase "computer readable medium" includes any type of medium capable of being accessed by a computer, such as Read-Only Memory (ROM), Random Access Memory (RAM), a hard disk drive, a Compact Disc (CD), a Digital Video Disc (DVD), or any other type of Memory. A "non-transitory" computer-readable medium excludes wired, wireless, optical, or other communication links that transmit transitory electrical or other signals. Non-transitory computer-readable media include media that can permanently store data and media that can store and later rewrite data, such as a rewritable optical disk or an erasable memory device.

The terminology used herein to describe embodiments of the invention is not intended to limit and/or define the scope of the invention. For example, unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this invention belongs.

It should be understood that the use of "first," "second," and similar terms in the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The singular forms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise.

As used herein, any reference to "one example" or "an example," "one embodiment," or "an embodiment" means that a particular element, feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of the phrase "in one embodiment" or "in an example" in various places in the specification are not necessarily all referring to the same embodiment.

It will be further understood that the terms "comprises" or "comprising," and the like, mean that the element or item identified as preceding the term, includes the element or item identified as following the term, and equivalents thereof, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The various embodiments discussed below are illustrative only of the principles of the present disclosure in this patent document and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged wireless communication system. For example, although the following detailed description of embodiments of the present disclosure will be directed to LTE and 5G communication systems, those skilled in the art will appreciate that the primary gist of the present disclosure is also applicable, with slight modifications, to other communication systems having similar technical background and channel format without substantially departing from the scope of the present disclosure. For example, the communication system may include a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) system, a Frequency Division Duplex (FDD) system, a Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a universal microwave access (world interoperability for microwave access (UMTS), a wireless radio access (NR 5G) system, a fifth generation (5G) or a new NR (radio) system, and the like. In addition, the technical scheme of the embodiment of the application can be applied to future-oriented communication technology. In addition, the technical scheme of the embodiment of the application can be applied to future-oriented communication technology.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that the same reference numerals in different figures will be used to refer to the same elements that have been described.

Fig. 1 illustrates an example wireless network 100 in accordance with various embodiments of the present disclosure. The embodiment of the wireless network 100 shown in fig. 1 is for illustration only. Other embodiments of wireless network 100 can be used without departing from the scope of this disclosure.

Wireless network 100 includes a gandeb (gNB)101, a gNB 102, and a gNB 103. gNB 101 communicates with gNB 102 and gNB 103. The gNB 101 also communicates with at least one Internet Protocol (IP) network 130, such as the internet, a proprietary IP network, or other data network.

Other well-known terms, such as "base station" or "access point," can be used instead of "gnnodeb" or "gNB", depending on the network type. For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals. Also, other well-known terms, such as "mobile station", "subscriber station", "remote terminal", "wireless terminal", or "user equipment", can be used instead of "user equipment" or "UE", depending on the network type. For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to a remote wireless device that wirelessly accesses the gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or what is commonly considered a stationary device (such as a desktop computer or vending machine).

gNB 102 provides wireless broadband access to network 130 for a first plurality of User Equipments (UEs) within coverage area 120 of gNB 102. The first plurality of UEs comprises: UE 111, which may be located in a Small Enterprise (SB); a UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi Hotspot (HS); a UE 114, which may be located in a first residence (R); a UE 115, which may be located in a second residence (R); the UE 116, may be a mobile device (M) such as a cellular phone, wireless laptop, wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 for a second plurality of UEs within coverage area 125 of gNB 103. The second plurality of UEs includes UE 115 and UE 116. In some embodiments, one or more of the gnbs 101-103 are capable of communicating with each other and with the UEs 111-116 using 5G, Long Term Evolution (LTE), LTE-A, WiMAX, or other advanced wireless communication technologies.

The dashed lines illustrate the approximate extent of

coverage areas

120 and 125, which are shown as approximately circular for purposes of illustration and explanation only. It should be clearly understood that coverage areas associated with the gNB, such as

coverage areas

120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and artificial obstructions.

As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of the present disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and structure for systems with 2D antenna arrays.

Although fig. 1 shows one example of a wireless network 100, various changes can be made to fig. 1. For example, wireless network 100 can include any number of gnbs and any number of UEs in any suitable arrangement. Also, the gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to the network 130. Similarly, each gNB 102-103 is capable of communicating directly with network 130 and providing UEs with direct wireless broadband access to network 130. Further, the

gnbs

101, 102, and/or 103 can provide access to other or additional external networks, such as external telephone networks or other types of data networks.

Fig. 2a and 2b illustrate example wireless transmit and receive paths according to the present disclosure. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that the receive path 250 can be implemented in the gNB and the transmit path 200 can be implemented in the UE. In some embodiments, receive path 250 is configured to support codebook design and structure for systems with 2D antenna arrays as described in embodiments of the present disclosure.

The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an N-point Inverse Fast Fourier Transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, an add cyclic prefix block 225, and an up-converter (UC) 230. Receive path 250 includes a down-converter (DC)255, a remove cyclic prefix block 260, a serial-to-parallel (S-to-P) block 265, an N-point Fast Fourier Transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decode and demodulation block 280.

In transmit path 200, a channel coding and modulation block 205 receives a set of information bits, applies coding, such as Low Density Parity Check (LDPC) coding, and modulates the input bits, such as with Quadrature Phase Shift Keying (QPSK) or Quadrature Amplitude Modulation (QAM), to generate a sequence of frequency domain modulation symbols. A serial-to-parallel (S-to-P) block 210 converts (such as demultiplexes) the serial modulation symbols into parallel data in order to generate N parallel symbol streams, where N is the IFFT/FFT point number used in the gNB 102 and UE 116. The N-point IFFT block 215 performs an IFFT operation on the N parallel symbol streams to generate a time domain output signal. Parallel-to-serial block 220 converts (such as multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. Add cyclic prefix block 225 inserts a cyclic prefix into the time domain signal. Upconverter 230 modulates (such as upconverts) the output of add cyclic prefix block 225 to an RF frequency for transmission over a wireless channel. The signal can also be filtered at baseband before conversion to RF frequency.

The RF signal transmitted from the gNB 102 reaches the UE 116 after passing through the radio channel, and the reverse operation to that at the gNB 102 is performed at the UE 116. Downconverter 255 downconverts the received signal to baseband frequency and remove cyclic prefix block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal to parallel time-domain signals. The N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency domain signals. The parallel-to-serial block 275 converts the parallel frequency domain signals to a sequence of modulated data symbols. Channel decode and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

Each of the gnbs 101-103 may implement a transmit path 200 similar to transmitting to the UE 111-116 in the downlink and may implement a receive path 250 similar to receiving from the UE 111-116 in the uplink. Similarly, each of UEs 111-116 may implement a transmit path 200 for transmitting in the uplink to gNB 101-103 and may implement a receive path 250 for receiving in the downlink from gNB 101-103.

Each of the components in fig. 2a and 2b can be implemented using hardware alone, or using a combination of hardware and software/firmware. As a specific example, at least some of the components in fig. 2a and 2b may be implemented in software, while other components may be implemented in configurable hardware or a mixture of software and configurable hardware. For example, FFT block 270 and IFFT block 215 may be implemented as configurable software algorithms, where the value of the number of points N may be modified depending on the implementation.

Furthermore, although described as using an FFT and an IFFT, this is merely illustrative and should not be construed as limiting the scope of the disclosure. Other types of transforms can be used, such as Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions. It should be understood that the value of the variable N may be any integer (such as 1, 2, 3, 4, etc.) for DFT and IDFT functions, and any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.) for FFT and IFFT functions.

Although fig. 2a and 2b show examples of wireless transmission and reception paths, various changes may be made to fig. 2a and 2 b. For example, the various components in fig. 2a and 2b can be combined, further subdivided, or omitted, and additional components can be added according to particular needs. Also, fig. 2a and 2b are intended to illustrate examples of the types of transmit and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communications in a wireless network.

Fig. 3a illustrates an example UE 116 according to the present disclosure. The embodiment of the UE 116 shown in fig. 3a is for illustration only, and the

UE

111 and 115 of fig. 1 can have the same or similar configuration. However, UEs have a wide variety of configurations, and fig. 3a does not limit the scope of the present disclosure to any particular implementation of a UE.

The UE 116 includes an antenna 305, a Radio Frequency (RF) transceiver 310, Transmit (TX) processing circuitry 315, a microphone 320, and Receive (RX) processing circuitry 325. The UE 116 also includes a speaker 330, a processor/controller 340, an input/output (I/O) interface 345, input device(s) 350, a display 355, and a memory 360. Memory 360 includes an Operating System (OS)361 and one or more applications 362.

RF transceiver 310 receives incoming RF signals from antenna 305 that are transmitted by the gNB of wireless network 100. The RF transceiver 310 down-converts an incoming RF signal to generate an Intermediate Frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 325, where RX processing circuitry 325 generates a processed baseband signal by filtering, decoding, and/or digitizing the baseband or IF signal. RX processing circuit 325 sends the processed baseband signals to speaker 330 (such as for voice data) or to processor/controller 340 (such as for web browsing data) for further processing.

TX processing circuitry 315 receives analog or digital voice data from microphone 320 or other outgoing baseband data (such as network data, e-mail, or interactive video game data) from processor/controller 340. TX processing circuitry 315 encodes, multiplexes, and/or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceiver 310 receives the outgoing processed baseband or IF signals from TX processing circuitry 315 and upconverts the baseband or IF signals to RF signals, which are transmitted via antenna 305.

The processor/controller 340 can include one or more processors or other processing devices, and executes the OS 361 stored in the memory 360 in order to control overall operation of the UE 116. For example, the processor/controller 340 may be capable of controlling the reception of forward channel signals and the transmission of reverse channel signals by the RF transceiver 310, the RX processing circuitry 325, and the TX processing circuitry 315 in accordance with well-known principles. In some embodiments, processor/controller 340 includes at least one microprocessor or microcontroller.

The processor/controller 340 can also execute other processes and programs resident in the memory 360, such as operations for channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. The processor/controller 340 is capable of moving data into and out of the memory 360 as needed to perform a process. In some embodiments, processor/controller 340 is configured to execute applications 362 based on OS 361 or in response to signals received from the gNB or the operator. The processor/controller 340 is also coupled to an I/O interface 345, where the I/O interface 345 provides the UE 116 with the ability to connect to other devices, such as laptop computers and handheld computers. I/O interface 345 is the communication path between these accessories and processor/controller 340.

The processor/controller 340 is also coupled to input device(s) 350 and a display 355. The operator of the UE 116 can input data into the UE 116 using the input device(s) 350. Display 355 may be a liquid crystal display or other display capable of presenting text and/or at least limited graphics (such as from a website). A memory 360 is coupled to the processor/controller 340. A portion of memory 360 can include Random Access Memory (RAM), while another portion of memory 360 can include flash memory or other read-only memory (ROM).

Although fig. 3a shows one example of the UE 116, various changes can be made to fig. 3 a. For example, the various components in FIG. 3a can be combined, further subdivided, or omitted, and additional components can be added according to particular needs. As a particular example, the processor/controller 340 can be divided into multiple processors, such as one or more Central Processing Units (CPUs) and one or more Graphics Processing Units (GPUs). Also, while fig. 3a shows the UE 116 configured as a mobile phone or smart phone, the UE can be configured to operate as other types of mobile or fixed devices.

Fig. 3b illustrates an example gNB 102 according to this disclosure. The embodiment of the gNB 102 shown in fig. 3b is for illustration only, and the other gnbs of fig. 1 can have the same or similar configuration. However, the gNB has a wide variety of configurations, and fig. 3b does not limit the scope of the present disclosure to any particular implementation of the gNB. Note that gNB 101 and gNB 103 can include the same or similar structure as gNB 102.

As shown in fig. 3b, the gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, Transmit (TX) processing circuitry 374, and Receive (RX) processing circuitry 376. In certain embodiments, one or more of the plurality of antennas 370a-370n comprises a 2D antenna array. The gNB 102 also includes a controller/processor 378, memory 380, and a backhaul or network interface 382.

The RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by UEs or other gnbs, from the antennas 370a-370 n. RF transceivers 372a-372n downconvert incoming RF signals to generate IF or baseband signals. The IF or baseband signal is sent to RX processing circuitry 376, where the RX processing circuitry 376 generates a processed baseband signal by filtering, decoding, and/or digitizing the baseband or IF signal. The RX processing circuit 376 sends the processed baseband signals to a controller/processor 378 for further processing.

TX processing circuitry 374 receives analog or digital data (such as voice data, network data, e-mail, or interactive video game data) from controller/processor 378. TX processing circuitry 374 encodes, multiplexes, and/or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 372a-372n receive outgoing processed baseband or IF signals from TX processing circuitry 374 and upconvert the baseband or IF signals into RF signals for transmission via antennas 370a-370 n.

Controller/processor 378 can include one or more processors or other processing devices that control the overall operation of gNB 102. For example, the controller/processor 378 may be capable of controlling the reception of forward channel signals and the transmission of reverse channel signals by the RF transceivers 372a-372n, the RX processing circuitry 376, and the TX processing circuitry 374 in accordance with well-known principles. The controller/processor 378 can also support additional functions, such as higher level wireless communication functions. For example, the controller/processor 378 can perform a Blind Interference Sensing (BIS) process, such as by performing a BIS algorithm, and decode the received signal with the interference signal subtracted. Controller/processor 378 may support any of a wide variety of other functions in the gNB 102. In some embodiments, controller/processor 378 includes at least one microprocessor or microcontroller.

Controller/processor 378 is also capable of executing programs and other processes resident in memory 380, such as a base OS. The controller/processor 378 can also support channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, controller/processor 378 supports communication between entities such as a web RTC. Controller/processor 378 can move data into and out of memory 380 as needed to perform a process.

Controller/processor 378 is also coupled to a backhaul or network interface 382. Backhaul or network interface 382 allows gNB 102 to communicate with other devices or systems over a backhaul connection or over a network. Backhaul or network interface 382 can support communication via any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as one supporting 5G or new radio access technologies or NR, LTE or LTE-a), the backhaul or network interface 382 can allow the gNB 102 to communicate with other gnbs over wired or wireless backhaul connections. When gNB 102 is implemented as an access point, backhaul or network interface 382 can allow gNB 102 to communicate with a larger network (such as the internet) via a wired or wireless local area network or via a wired or wireless connection. Backhaul or network interface 382 includes any suitable structure that supports communication over a wired or wireless connection, such as an ethernet or RF transceiver.

A memory 380 is coupled to the controller/processor 378. A portion of memory 380 can include RAM and another portion of memory 380 can include flash memory or other ROM. In some embodiments, a plurality of instructions, such as a BIS algorithm, are stored in memory. The plurality of instructions are configured to cause the controller/processor 378 to perform a BIS process and decode the received signal after subtracting at least one interfering signal determined by a BIS algorithm.

As described in more detail below, the transmit and receive paths of gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and/or RX processing circuitry 376) support aggregated communication with FDD and TDD cells.

Although fig. 3b shows one example of a gNB 102, various changes may be made to fig. 3 b. For example, the gNB 102 can include any number of each of the components shown in fig. 3 a. As a particular example, the access point can include a number of backhauls or network interfaces 382 and the controller/processor 378 can support routing functions to route data between different network addresses. As another particular example, although shown as including a single instance of TX processing circuitry 374 and a single instance of RX processing circuitry 376, gNB 102 can include multiple instances of each (such as one for each RF transceiver).

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 communications device having a single line display or a multi-line display or a cellular or other communications device without a multi-line display; a PCS (personal communications system) that 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.

With the rapid development of the information industry, especially the growing demand from the mobile internet and the internet of things (IoT), an unprecedented challenge is brought to future mobile communication technologies. As reported by the International Telecommunications Union (ITU) under ITU-R M [ imt. beam 2020. transfic ], it is expected that by 2020, the mobile TRAFFIC will increase nearly 1000 times and the number of UE connections will exceed 170 billion compared to 2010 (4G era), and the number of connected devices will be more dramatic as the vast number of IoT devices gradually permeates into the mobile communication network. To address this unprecedented challenge, the communications industry and academia have developed extensive fifth generation mobile communications technology (5G) research to target 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 (3rd Generation Partnership Project), the first phase of work for 5G has been ongoing. 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.

The 3GPP defines three major directions of a 5G application scenario, namely eMBB (enhanced mobile broadband), mtc (massive machine-type communication), URLLC (ultra-reliable and low-latency communication). The eMBB scene aims to further improve the data transmission rate on the basis of the existing mobile broadband service scene so as to improve the user experience, and thus the extremely communication experience between people is pursued. 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.

In 5G, the eMBB and the URLLC may adopt a joint networking mode, that is, both the URLLC service and the eMBB service are supported in the same cell. Because URLLC traffic may be sparse traffic, compared to 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 the URLLC service and the eMBB service conflict, data and/or control information of the URLLC service may be preferentially transmitted, so that the performance of the eMBB service may be lost. Therefore, how to optimize the transmission of data and control information for services (e.g., eMBB services) is an urgent issue to be solved.

Embodiments of the present disclosure provide a method, apparatus, and non-transitory computer-readable storage medium for uplink control information transmission and reception in a wireless communication system to improve transmission of uplink control information. Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

In an embodiment of the present disclosure, the first type of transceiver node may be a base station, and the second type of transceiver node may be a UE. 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.

Exemplary embodiments of the present disclosure are further described below in conjunction with the appended drawings.

The text and drawings are provided as examples only to assist the reader in understanding the disclosure. They are not intended, nor should they be construed, as limiting the scope of the disclosure in any way. While certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the disclosure herein, that changes can be made in the embodiments and examples shown without departing from the scope of the disclosure.

Fig. 4 shows a block diagram of a second type of transceiving node according to embodiments of the present disclosure.

Referring to fig. 4, a second type of transceiving node 400 may comprise a transceiver 401 and a controller 402.

The transceiver 401 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 in time units.

The controller 402 may be an application specific integrated circuit or at least one processor. The controller 402 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 methods set forth in embodiments of the present disclosure. For example, the controller 402 may be configured to multiplex and/or preempt a plurality of PUCCHs carrying different priority UCI if the plurality of PUCCHs overlap in a time domain, and to control the transceiver 401 to transmit the second type data and/or the second type control signaling to the first type transceiving node in a time unit.

In some implementations, the controller 402 may be configured to perform one or more of the methods of the various embodiments described below. For example, the controller 402 may be configured to control the second type of transceiving node to perform one or more of the methods to be described later in connection with fig. 5 to 9.

In some embodiments, the first type of data may be data that is transmitted by the first type of transceiving node to the second type of transceiving node. In the following examples, the first type of data is illustrated by taking Downlink data carried by PDSCH (Physical Downlink Shared Channel) as an example (but not limited to).

In some embodiments, the second type of data may be data transmitted by the second type of transceiving node to the first type of transceiving node. In the following examples, the second type of data is illustrated by taking Uplink data carried by a PUSCH (Physical Uplink Shared Channel) as an example (but not limited to).

In some embodiments, 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. In the following examples, the first type of control signaling is illustrated 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).

In some embodiments, 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. In the following examples, the second type of control signaling is illustrated by taking 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 PUSCH (Physical Uplink Shared Channel). The type of UCI may include one or more of the following: HARQ-ACK Information, SR (Scheduling Request), LRR (Link Recovery Request), CSI (channel State Information), or CG (Configured grant) UCI.

In some embodiments, the PUCCH carrying the SR may be a PUCCH carrying a positive SR (positive SR). The PUCCH carrying SR may be a PUCCH carrying negative SR (negative SR). The PUCCH carrying the SR may be a PUCCH carrying a positive SR and/or a negative SR.

In some embodiments, the CSI may also be Part 1CSI (first-Part CSI) and/or Part 2CSI (second-Part CSI).

In some embodiments, the time unit is a time unit in which the second type of transceiving node transmits the second type of data and/or the second type of control signaling. In the following examples, the second type of time cell is illustrated by taking the uplink time cell as an example (but not limited to).

In some embodiments, a 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, or 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 the network, such as a Transmission Point (TP), a Transmission and 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 in accordance with one or more wireless communication protocols, e.g., 5G3GPP 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 "gNB" are used interchangeably in this patent document to refer to 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 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).

In describing the wireless communication system and in the present disclosure described below, higher layer signaling or higher layer signals are signal transfer methods for transferring information from a base station to a terminal through a downlink data channel of a physical layer or transferring information from a terminal to a base station through an uplink data channel of a physical layer, and examples of the signal transfer methods may include signal transfer methods for transferring information through Radio Resource Control (RRC) signaling, Packet Data Convergence Protocol (PDCP) signaling, or Medium Access Control (MAC) control element (MAC control element).

Fig. 5 shows a flow chart of a method performed by a UE according to an embodiment of the invention.

Referring to fig. 5, the UE receives downlink data and/or downlink control signaling from the base station at step S510.

In step S520, if multiple physical uplink control channels PUCCH carrying uplink control signaling with different priorities are overlapped in time domain, the UE multiplexes and/or preempts the multiple PUCCHs.

In step S530, the UE transmits uplink data and/or uplink control signaling to the base station in an uplink time unit.

In some embodiments, the downlink control signaling may include DCI carried over a PDCCH and/or control signaling carried over a PDSCH. For example, the DCI may be used to schedule transmission of a PUSCH or reception of a PDSCH. Some examples of uplink transmission timing will be described below with reference to fig. 6A-6C.

In one example, the UE receives DCI and receives PDSCH according to time domain resources indicated in the DCI. For example, a time interval between a DCI-scheduled PDSCH and a DCI-carrying PDCCH may be represented using a parameter K0, and the unit of K0 may be a slot. For example, fig. 6A gives an example of K0 ═ 1. In the example shown in fig. 6A, the time interval from the DCI scheduled PDSCH to the PDCCH carrying the DCI is 1 slot.

In another example, the UE receives DCI and transmits PUSCH according to time domain resources indicated in the DCI. For example, a time interval between a PUSCH for DCI scheduling and a PDCCH carrying DCI may be represented using a parameter K2, and a unit of K2 may be a slot. For example, fig. 6B gives an example of K2 ═ 1. In the example shown in fig. 6B, the time interval between the PUSCH scheduled by the DCI and the PDCCH carrying the DCI is 1 slot.

In yet another example, the UE receives a PDSCH and may send HARQ-ACK information for the PDSCH on a PUCCH in an uplink time unit. For example, a time interval between a PUCCH for transmitting HARQ-ACK information of a PDSCH and the PDSCH may be represented using a parameter K1, and a unit of K1 may be an uplink time unit such as a slot or a sub-slot. Fig. 6A gives an example of K1 ═ 3. For example, in the example shown in fig. 6A, a PUCCH for transmitting HARQ-ACK information of a PDSCH is spaced 3 slots apart from the PDSCH. Alternatively, the time interval between SPS PDSCH reception and PUCCH for which HARQ-ACK is fed back may be represented using parameter K1, for example, where the K1 is indicated in the DCI activating the SPS PDSCH.

In yet another example, the UE receives DCI (e.g., DCI indicating SPS (Semi-Persistent Scheduling) release) and may transmit HARQ-ACK information of the DCI on a PUCCH of an uplink time unit. For example, a time interval between a PUCCH for transmitting HARQ-ACK information of DCI and the DCI may be represented using a parameter K1, and a unit of K1 may be an uplink time unit such as a slot or a sub-slot. For example, fig. 6C gives an example of K1 ═ 3. In the example of fig. 6C, the time interval between the PUCCH for transmitting HARQ-ACK information of DCI and the DCI is 3 slots. In some embodiments, the UE may report (or transmit) the UE capability to the base station in step S520. For example, the UE reports (or transmits) the UE capability to the base station by transmitting a PUSCH. In this case, the PUSCH transmitted by the UE includes the UE capability information.

In some embodiments, the base station may configure the UE with higher layer signaling according to the UE capabilities previously received from the UE (e.g., in step S510 of the previous downlink-uplink transmission procedure). For example, the base station configures higher layer signaling for the UE by sending PDSCH. In this case, the PDSCH transmitted by the base station includes higher layer signaling configured for the UE. It should be noted that the higher layer signaling is higher layer signaling compared to physical layer signaling, for example, the higher layer signaling may include RRC signaling and/or mac ce, for example.

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 (higher priority) and a second priority (lower priority) that are different from each other. In one example, the first priority may be higher than the second priority. In another example, the first priority may be lower 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. It should be noted that all embodiments of the present disclosure are applicable to the case that the first priority may be higher than the second priority; all embodiments of the present disclosure are applicable to situations where the first priority may be lower than the second priority; all embodiments of the present disclosure are applicable to situations where the first priority may be equal to the second priority.

In one example, two levels of priority may be indicated by a priority number or priority index (e.g., priority index 1 and priority index 0). For example, a larger priority index may correspond to a higher priority, i.e., priority index 1 may correspond to a higher priority than priority index 0. In this case, a larger priority index (e.g., priority index 1) may be a higher priority (e.g., first priority) and a smaller priority index (e.g., priority index 0) may be a lower priority (e.g., 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 a priority corresponding to a larger priority index (e.g., priority index 1) is higher than a priority corresponding to a smaller priority index (e.g., priority index 0). Additionally, in embodiments of the present disclosure, priority index 1 may be used interchangeably with first priority, a larger priority index, or a higher priority, and priority index 0 may be used interchangeably with a second priority, a smaller priority index, or a 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., priority index 1)) or a second priority (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 priority index of 0 or greater (e.g., priority index 1).

In some embodiments, a first priority or higher priority (e.g., a larger priority index (e.g., priority index 1)) may correspond to first traffic (e.g., URLLC traffic) and a second priority or lower priority (e.g., a smaller priority index (e.g., priority index 0)) may correspond to second traffic (e.g., eMBB traffic).

In one example, for scheduling-free PUSCH (e.g., Configured Grant PUSCH, CG-PUSCH) transmission, the UE may determine the priority index according to a priority parameter (e.g., parameter priority in 3 GPP), if Configured. For PUCCH transmissions having HARQ-ACK information corresponding to SPS PDSCH reception or SPS PDSCH release, the UE may determine the priority index of the PUCCH transmission from the HARQ-ACK codebook priority parameter, and/or the HARQ-ACK codebook index parameter (e.g., the parameter HARQ-codebook id in 3 GPP), if configured.

In one example, if no priority is configured or indicated for a certain PUSCH or PUCCH transmission for a UE, the priority index for that PUSCH or PUCCH transmission may be 0.

In one example, 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, the priority index may be provided through the priority indication field. If the UE indicates the capability to listen to 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 PUCCH configuration list parameters (e.g., parameter PUCCH-configuration list in 3 GPP), which may include two PUCCH configuration parameters (e.g., parameter PUCCH-configuration in 3 GPP), including a first PUCCH configuration parameter and a second PUCCH configuration parameter. For example, the first PUCCH configuration parameter may correspond to a second priority (e.g., a smaller priority index (e.g., priority index 0)), that is, the priority of the first PUCCH configuration parameter may be the second priority (e.g., a smaller priority index (e.g., priority index 0)). Also, the second PUCCH configuration parameter may correspond to a first priority (e.g., a larger priority index (e.g., priority index 1)), and the priority of the second PUCCH configuration parameter may be the first priority (e.g., a larger priority index (e.g., priority index 1)).

For example, a sub-slot length parameter (e.g., a parameter subslotLengthForPUCCH in 3 GPP) of each of the first PUCCH configuration parameter and the second PUCCH configuration parameter may be 7 OFDM symbols, or 6 OFDM symbols, or 2 OFDM symbols. The sub-slot configuration length parameters in different PUCCH configuration parameters may be configured separately. If the sub-slot length parameter is not configured in one PUCCH configuration parameter, the scheduling time unit of the PUCCH configuration parameter is defaulted to be one slot. If a sub-slot length parameter is configured in one PUCCH configuration parameter, a scheduling time unit of the PUCCH configuration parameter configures a length OFDM symbol for the configured sub-slot.

In some embodiments, the UE may be configured PDSCH HARQ-ACK codebook list parameters (e.g., the parameter pdsch-HARQ-ACK-codebook list in 3 GPP). For example, the PDSCH HARQ-ACK Codebook list parameter may include two PDSCH HARQ-ACK Codebook configuration parameters (e.g., the parameter pdsch-HARQ-ACK-Codebook in 3 GPP), including a first PDSCH HARQ-ACK Codebook configuration parameter and a second PDSCH HARQ-ACK Codebook configuration parameter. For example, a first PDSCH HARQ-ACK codebook configuration parameter corresponds to a first HARQ-ACK codebook configuration associated with a PUCCH with a smaller priority index (e.g., priority index 0) and a second PDSCH HARQ-ACK codebook configuration parameter corresponds to a second HARQ-ACK codebook configuration associated with a PUCCH with 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)). PDSCH HARQ-ACK Codebook configuration parameters (e.g., parameter pdsch-HARQ-ACK-Codebook) are used to configure the HARQ-ACK Codebook type, e.g., PDSCH HARQ-ACK Codebook configuration parameters may be semi-static (e.g., semiStatic); for example, the PDSCH HARQ-ACK codebook configuration parameter may be dynamic (e.g., dynamic); for example, the PDSCH HARQ-ACK Codebook configuration parameter may be enhanced dynamic (e.g., the parameter pdsch-HARQ-ACK-Codebook-r16 in 3GPP is enhanced dynamic).

In some embodiments, the HARQ-ACK codebook may include HARQ-ACK information for one or more PDSCHs and/or DCIs. If the HARQ-ACK information of one or more PDSCHs and/or DCIs is transmitted in the same uplink time unit, the UE may generate a HARQ-ACK codebook according to a predefined rule. For example, the UE may generate the HARQ-ACK codebook according to a pseudo code specified by a protocol. In one example, if the UE receives a DCI format indicating SPS deactivation, the UE transmits HARQ-ACK information for the DCI format. In another example, if the UE receives a DCI format indicating that the secondary cell is dormant, the UE transmits HARQ-ACK information for the DCI format. In yet another example, if the UE receives a DCI format indicating that HARQ-ACK information for all HARQ-ACK processes is transmitted (e.g., a one-shot HARQ-ACK codebook, which is also, for example, a Type-3 HARQ-ACK codebook (Type-3 HARQ-ACK codebook) in 3GPP (e.g., TS 38.213)), the UE transmits HARQ-ACK information for all HARQ-ACK processes. In yet another example, if the UE receives a DCI format, wherein the DCI format schedules a PDSCH, the UE transmits HARQ-ACK information for the PDSCH. In yet another example, the UE receives the SPS PDSCH, and the UE transmits HARQ-ACK information for the SPS PDSCH. In yet another example, if the UE is configured by higher layer signaling to receive the SPS PDSCH, the UE transmits HARQ-ACK information for the SPS PDSCH. If the UE is configured by higher layer signaling to receive the SPS PDSCH, the SPS PDSCH may be cancelled by other signaling. In yet another example, the UE does not receive the SPS PDSCH if at least one uplink symbol (e.g., OFDM symbol) in the semi-static frame structure configured by higher layer signaling overlaps with a symbol of the SPS PDSCH. In yet another example, the UE transmits HARQ-ACK information for the SPS PDSCH if the UE is configured to receive the SPS PDSCH by higher layer signaling according to a predefined rule.

In some embodiments, the UE may generate HARQ-ACK information according to rules that produce SPS PDSCH HARQ-ACK codebook if the HARQ-ACK information transmitted for the same uplink time unit does not include HARQ-ACK information for any DCI format, nor does it include HARQ-ACK information for dynamically scheduled PDSCHs (e.g., PDSCHs scheduled via DCI formats), or the HARQ-ACK information transmitted for the same uplink time unit includes only HARQ-ACK information for one or more SPS PDSCHs.

In some embodiments, if the HARQ-ACK information transmitted for the same uplink time unit includes HARQ-ACK information for any DCI format, and/or HARQ-ACK information for a dynamically scheduled PDSCH (e.g., a PDSCH scheduled through one DCI format), the UE may generate HARQ-ACK information according to rules that produce a dynamically scheduled PDSCH and/or a HARQ-ACK codebook for DCI. For example, the UE may determine to generate a semi-static HARQ-ACK Codebook (e.g., Type-1 HARQ-ACK Codebook (Type-1 HARQ-ACK Codebook) in 3GPP (e.g., TS 38.213)) or a dynamic HARQ-ACK Codebook (e.g., Type-2 HARQ-ACK Codebook (Type-2 HARQ-ACK Codebook) in 3GPP (e.g., TS 38.213)) or an enhanced dynamic HARQ-ACK Codebook (e.g., Type-2 HARQ-ACK Codebook based on packet (grouping) and HARQ-ACK retransmission in 3GPP (e.g., TS 38.213)) according to PDSCH HARQ-ACK Codebook configuration parameters (e.g., parameter pdsch-HARQ-ACK-Codebook in 3 GPP).

In some embodiments, the dynamic HARQ-ACK codebook and/or the enhanced dynamic HARQ-ACK codebook may determine the size and ordering of the HARQ-ACK codebook according to the allocation index. For example, the allocation Index may be DAI (Downlink Assignment Index). In the following embodiments, the allocation index is described as DAI as an example. However, embodiments of the present disclosure are not limited thereto, and any other suitable allocation index may be employed.

In some embodiments, the DAI field includes at least one of a first type of DAI and a second type of DAI.

In some examples, the first type of DAI may be a C-DAI (Counter-DAI). The first type of DAI may indicate an accumulated count of at least one of a PDSCH scheduled at a current downlink time unit, or a DCI indicating a SPS PDSCH release, or a DCI indicating a secondary cell dormancy. The ordering of bits in the HARQ-ACK codebook corresponding to at least one of PDSCH reception, DCI indicating SPS PDSCH release, or DCI indicating secondary cell dormancy may be determined by receiving a time including a first type of DAI and first type of DAI information. The first type of DAI may be included in a downlink DCI format.

In some examples, the second type of DAI may be a T-DAI (Total-DAI, Total DAI). The DAI of the second type may indicate a total number of at least one of all PDSCH receptions corresponding to the uplink time unit, DCI indicating SPS PDSCH release, or DCI indicating secondary cell dormancy. The second type of DAI may be included in the downlink DCI format and/or the uplink DCI format. The second type of DAI included in the uplink DCI format is also referred to as UL DAI.

In the following examples, the first type of DAI is C-DAI and the second type of DAI is T-DAI, but not limited thereto.

Tables 1 and 2 show the DAI field and V_T-DAI，mOr V_{C-DAI，c，m}The corresponding relationship of (1). The number of bits of the C-DAI and T-DAI is limited.

For example, in the case where the C-DAI or T-DAI is expressed with 2 bits, the value of the C-DAI or T-DAI in the DCI may be determined by the formula in Table 1. V_T-DAI，mIs the value of T-DAI in DCI received at PDCCH monitoring occasion (monitoring interference) m, V_{C-DAI，c，m}Is the value of C-DAI in the DCI for serving cell C received at PDCCH monitoring occasion m. V_T-DAI，mAnd V_{C-DAI，c，m}Is related to the number of bits of the DAI field in the DCI. MSB is the Most Significant Bit (Most Significant Bit), and LSB is the Least Significant Bit (Least Significant Bit).

[ Table 1]

For example, if C-DAI or T-DAI is 1, 5 or 9, as shown in Table 1, each is indicated by "00" in the DAI field, and V is expressed by the formula in Table 1_T-DAI，mOr V_{C-DAI，c，m}The value of (d) is represented as "1". Y may represent a value of DAI (a value of DAI before conversion by a formula in a table) corresponding to the number of DCIs actually transmitted by the base station.

For example, in the case where C-DAI or T-DAI in DCI is 1 bit, a value greater than 2 may be represented by the formula in Table 2.

[ Table 2]

When the uplink physical channel of the UE is configured with multiple priorities, how to improve the transmission possibility and reliability of the lower priority physical channel on the premise of ensuring the transmission delay and reliability of the higher priority physical channel is a problem to be solved. For example, if PUCCHs carrying UCIs of different priorities overlap in the time domain, multiple PUCCHs may be multiplexed onto one PUCCH for transmission, or multiple PUCCHs may be preempted (prioritization). PUCCH preemption refers to, for example, transmitting a higher priority PUCCH without transmitting a lower priority PUCCH; or, multiplexing a plurality of PUCCHs with higher priority to one PUCCH for transmission without transmitting one or more PUCCHs with lower priority. In different scenarios, the UE may take different approaches. Hereinafter, how the UE handles the problem that PUCCHs carrying different priority UCI overlap in time domain in different scenarios is described by specific embodiments.

The method for multiplexing and/or prioritizing the UCI of different priorities in the embodiments of the present disclosure may be applied to UCI of unicast (unicast) PDSCH and/or UCI of multicast (groupcast or multicast)/broadcast PDSCH. For example, the UCI of the first priority and the second priority may be HARQ-ACK, SR, CSI of the unicast PDSCH. For example, the UCI of the first priority and the second priority may be both HARQ-ACKs of the multicast/broadcast PDSCH. For example, the UCI of the first priority may be HARQ-ACK, SR, CSI of the unicast PDSCH, and the UCI of the second priority may be HARQ-ACK of the multicast/broadcast PDSCH.

In the embodiments of the present disclosure, unicast may refer to a manner in which a network communicates with one UE, and multicast/broadcast may refer to a manner in which a network communicates with a plurality of UEs. For example, the unicast PDSCH may be a PDSCH received by a UE, and the scrambling of the PDSCH may be based on a Radio Network Temporary Identifier (RNTI) specific to the UE, such as a C-RNTI. The unicast PDSCH may also be a unicast SPS PDSCH. The multicast (groupcast or multicast)/broadcast PDSCH may be one PDSCH received by more than one UE at the same time, and scrambling of the multicast/broadcast PDSCH may be based on RNTI common to the UE group. For example, the RNTI common to the scrambled UE group for the multicast/broadcast PDSCH may include an RNTI scrambled (referred to as a G-RNTI, or referred to as a first RNTI, in embodiments of the present disclosure) for a dynamically scheduled multicast/broadcast transmission (e.g., PDSCH) or an RNTI scrambled (referred to as a GS-RNTI, or referred to as a second RNTI, in embodiments of the present disclosure) for a multicast/broadcast SPS transmission (e.g., SPS PDSCH). The GS-RNTI and the G-RNTI can be different RNTIs or the same RNTI. The UCI of the unicast PDSCH may include HARQ-ACK information, SR, or CSI of the unicast PDSCH. The UCI of the multicast/broadcast PDSCH may include HARQ-ACK information of the multicast/broadcast PDSCH. In an embodiment of the present disclosure, "multicast/broadcast" may refer to at least one of multicast or broadcast. In addition, it should be noted that although the embodiments of the present disclosure refer to RNTI scrambled for multicast/broadcast transmission (e.g., PDSCH) for dynamic scheduling as the G-RNTI or the first RNTI and refer to RNTI scrambled for multicast/broadcast SPS transmission (e.g., SPS PDSCH) as the GS-RNTI or the second RNTI for ease of description, such naming of RNTIs is merely an example, and each RNTI may be named in any suitable manner. For example, an RNTI scrambled for a multicast/broadcast transmission (e.g., PDSCH) that is dynamically scheduled is referred to as a second RNTI, and an RNTI scrambled for a multicast/broadcast SPS transmission (e.g., SPS PDSCH) is referred to as a first RNTI.

According to an embodiment of the present invention, the UE may be configured with PUCCH configuration list parameters (e.g. PUCCH-configuration list in 3 GPP), which may include two PUCCH configuration parameters (e.g. PUCCH-configuration in 3 GPP), including a first PUCCH configuration parameter and a second PUCCH configuration parameter. For example, the first PUCCH configuration parameter may correspond to a second priority (e.g., a smaller priority index (e.g., priority index 0)), that is, the priority of the first PUCCH configuration parameter may be the second priority (e.g., a smaller priority index (e.g., priority index 0)). The second PUCCH configuration parameter may correspond to a first priority (e.g., a larger priority index (e.g., priority index 1)), that is, the priority of the second PUCCH configuration parameter may be the first priority (e.g., a larger priority index (e.g., priority index 1)).

Optionally, if the PUCCH carrying the HARQ-ACK of lower priority overlaps with the PUCCH carrying the SR of higher priority in time domain, the PUCCH resource transmitted by the UE may be determined according to the number of bits of the HARQ-ACK of lower priority and/or the format of the PUCCH carrying the HARQ-ACK of lower priority and/or the number of symbols of the PUCCH. For example, if the format of the PUCCH carrying the lower priority HARQ-ACK is PUCCH format 3 and/or PUCCH format 4 and the number of symbols of the PUCCH is greater than or equal to a predefined threshold X1(X1 may be a positive integer.), the UE transmits the PUCCH carrying the higher priority SR and the UE does not transmit the PUCCH carrying the lower priority HARQ-ACK. If the format of the PUCCH carrying the HARQ-ACK with lower priority is PUCCH format 3 and/or PUCCH format 4 and the number of symbols of the PUCCH is less than or equal to a predefined threshold X1(X1 can be a positive integer.), the UE multiplexes the SR carrying higher priority and the HARQ-ACK carrying lower priority onto one PUCCH for transmission. This PUCCH may be a PUCCH carrying lower priority HARQ-ACKs. For example, if the format of PUCCH carrying lower priority HARQ-ACK is PUCCH format 2, the UE multiplexes the SR carrying higher priority and the HARQ-ACK carrying lower priority onto one PUCCH to transmit. This PUCCH may be a PUCCH carrying lower priority HARQ-ACKs.

Optionally, if the PUCCH carrying the HARQ-ACK of lower priority overlaps with the PUCCH carrying the SR of higher priority in time domain, the PUCCH resource transmitted by the UE may be determined according to the PUCCH format carrying the SR of higher priority and/or the number of bits of the HARQ-ACK of lower priority and/or the format of the PUCCH carrying the HARQ-ACK of lower priority and/or the number of symbols of the PUCCH. For example, if the format of PUCCH carrying lower priority HARQ-ACK is PUCCH format 3 and/or PUCCH format 4 and the PUCCH carrying higher priority SR is PUCCH format 0, the UE transmits PUCCH carrying higher priority SR and the UE does not transmit PUCCH carrying lower priority HARQ-ACK. And if the format of the PUCCH carrying the HARQ-ACK with lower priority is PUCCH format 3 and/or PUCCH format 4, and the PUCCH carrying the higher priority SR is PUCCH format 1, the UE multiplexes the SR carrying the higher priority and the HARQ-ACK carrying the lower priority onto one PUCCH for transmission. This PUCCH may be a PUCCH carrying lower priority HARQ-ACK.

Optionally, if the PUCCH carrying the lower priority HARQ-ACK overlaps with the PUCCH carrying the higher priority SR in time domain, the PUCCH resource transmitted by the UE may be determined according to the start symbol and/or end symbol of the PUCCH carrying the higher priority SR and/or the start symbol and/or end symbol of the PUCCH carrying the lower priority HARQ-ACK. For example, if the end symbol of the PUCCH carrying the lower priority HARQ-ACK is not later than the end symbol of the PUCCH carrying the higher priority SR, the UE multiplexes the higher priority SR and the lower priority HARQ-ACK onto one PUCCH for transmission. This PUCCH may be a PUCCH carrying lower priority HARQ-ACK. And if the end symbol of the PUCCH carrying the HARQ-ACK with the lower priority is later than the end symbol of the PUCCH carrying the SR with the higher priority, the UE transmits the PUCCH carrying the SR with the higher priority, and does not transmit the PUCCH carrying the HARQ-ACK with the lower priority. For example, if the end symbol of the PUCCH carrying the lower priority HARQ-ACK is no later than the end symbol X2(X2 may be a positive integer) of the PUCCH carrying the higher priority SR, the UE multiplexes the higher priority SR and the lower priority HARQ-ACK onto one PUCCH to transmit. This PUCCH may be a PUCCH carrying lower priority HARQ-ACKs. If the end symbol of the PUCCH carrying the lower priority HARQ-ACK is later than the end symbol X2(X2 may be a positive integer) of the PUCCH carrying the higher priority SR by one symbol, the UE transmits the PUCCH carrying the higher priority SR and does not transmit the PUCCH carrying the lower priority HARQ-ACK.

Optionally, if the PUCCH carrying the HARQ-ACK of lower priority overlaps with the PUCCH carrying the SR of higher priority in time domain, the PUCCH resource transmitted by the UE may be determined according to the starting symbol and/or the ending symbol of the PUCCH carrying the SR of higher priority and/or the starting symbol and/or the ending symbol of the PUCCH carrying the HARQ-ACK of lower priority and/or the PUCCH format carrying the SR of higher priority and/or the number of bits of the HARQ-ACK of lower priority and/or the format of the PUCCH carrying the HARQ-ACK of lower priority and/or the number of symbols of the PUCCH. For example, if the end symbol of PUCCH format 3 or PUCCH format 4 carrying lower priority HARQ-ACK is no later than the end symbol X3(X3 may be a non-negative integer, e.g., X3 is 0.) of PUCCH carrying higher priority SR, the UE multiplexes higher priority SR carrying and lower priority HARQ-ACK carrying on one PUCCH for transmission. This PUCCH may be a PUCCH carrying lower priority HARQ-ACK. If the end symbol of PUCCH format 3 or PUCCH format 4 carrying lower priority HARQ-ACK is later than the end symbol X3(X3 may be a non-negative integer, e.g., X3 is 0.) of PUCCH carrying higher priority SR, the UE transmits PUCCH carrying higher priority SR and the UE does not transmit PUCCH carrying lower priority HARQ-ACK.

Alternatively, if there is overlap in both time domain of PUCCH carrying lower priority HARQ-ACK and PUCCH carrying higher priority SR, the lower priority HARQ-ACK and higher priority SR can be multiplexed onto one PUCCH resource. For example, this PUCCH resource may be a PUCCH carrying a higher priority SR. Alternatively, this PUCCH resource may be a PUCCH carrying lower priority HARQ-ACK. Alternatively, this PUCCH resource may be the PUCCH carrying the higher priority HARQ-ACK. Alternatively, this PUCCH resource may be a PUCCH resource configured with higher layer signaling specifically for carrying lower priority HARQ-ACKs and higher priority SRs. Alternatively, the PUCCH resource transmitted by the UE may be determined according to the number of bits of the lower priority HARQ-ACK. For example, this PUCCH resource may be the PUCCH carrying the lower priority HARQ-ACK if the number of bits of the lower priority HARQ-ACK is greater than or equal to a predefined threshold X4(X4 may be a positive integer, e.g., X4 equal to 2 or X4 equal to 1). Alternatively, this PUCCH resource may be the PUCCH carrying the higher priority HARQ-ACK. Alternatively, this PUCCH resource may be a PUCCH resource configured with higher layer signaling specifically for carrying lower priority HARQ-ACKs and higher priority SRs. This PUCCH resource may be the PUCCH carrying the higher priority SR if the number of bits of the lower priority HARQ-ACK is less than or equal to or less than a predefined threshold X4(X4 may be a positive integer, e.g., X4 equal to 2 or X4 equal to 1.). Alternatively, this PUCCH resource may be the PUCCH carrying the higher priority HARQ-ACK. Alternatively, this PUCCH resource may be a PUCCH resource configured by higher layer signaling specifically for carrying lower priority HARQ-ACKs and higher priority SRs.

Alternatively, if the format of the PUCCH carrying the lower priority HARQ-ACK and the higher priority SR is PUCCH format x (e.g., PUCCH format x may be PUCCH format 2 or PUCCH format 3 or PUCCH format 4), the higher priority SR and the lower priority HARQ-ACK may be jointly encoded (joint coding). Optionally, if the format of the PUCCH carrying the lower priority HARQ-ACK and the higher priority SR is PUCCH format x (for example, PUCCH format x may be PUCCH format 2, PUCCH format 3, or PUCCH format 4), the maximum code rate may be the maximum code rate of the lower priority PUCCH format x or the maximum code rate of the higher priority PUCCH format x or the maximum code rate additionally configured by the lower priority PUCCH format x (for example, the maximum code rate parameter additionally configured by PUCCH format x is used to determine that the format of the PUCCH carrying the lower priority HARQ-ACK and the higher priority SR is the maximum code rate of PUCCH format x). Alternatively, if the format of the PUCCH carrying the HARQ-ACK of the lower priority and the SR of the higher priority is PUCCH format x (for example, PUCCH format x may be PUCCH format 2 or PUCCH format 3), the number of PRBs (Physical Resource Block) may be determined according to the determined maximum code rate. For example, the number of PRBs of PUCCH format x may be determined according to the manner specified by 3GPP TS 38.213.

Alternatively, if the format of the PUCCH carrying the lower priority HARQ-ACK and the higher priority SR is PUCCH format x (e.g., PUCCH format x may be PUCCH format 2 or PUCCH format 3 or PUCCH format 4), the higher priority SR and the lower priority HARQ-ACK may be separately encoded (separate coding).

Optionally, if the PUCCH carrying the lower priority HARQ-ACK, the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the higher priority SR are overlapped in time domain, the PUCCH carrying the lower priority HARQ-ACK, the higher priority HARQ-ACK and the higher priority SR are multiplexed onto one PUCCH. For example, one PUCCH may be multiplexed to be used to carry higher priority HARQ-ACKs.

Optionally, if the PUCCH carrying the lower priority HARQ-ACK overlaps with the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the higher priority SR, respectively, in the time domain, the PUCCH carrying the lower priority HARQ-ACK and the higher priority HARQ-ACK are multiplexed onto one PUCCH. For example, one PUCCH may be multiplexed to carry a higher priority HARQ-ACK.

Alternatively, if there is a PUCCH carrying lower priority HARQ-ACK, a PUCCH carrying higher priority HARQ-ACK, or a PUCCH carrying higher priority SR within a time unit.

Alternatively, if the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the higher priority SR overlap in the time domain, the 2 PUCCHs are first multiplexed. If the PUCCH carrying the higher priority HARQ-ACK and the higher priority SR overlaps with the PUCCH carrying the lower priority HARQ-ACK in time domain, the two PUCCHs are multiplexed.

Optionally, the PUCCH in the embodiments of the present disclosure further needs to satisfy a certain multiplexing condition, for example, a timing relationship, and/or UE capability, and/or whether to be dynamically indicated and/or semi-statically configured to be reusable, and the like. For example, if a PUCCH carrying a lower priority HARQ-ACK overlaps only a PUCCH carrying a higher priority SR in the time domain, if a multiplexing condition is satisfied, the lower priority HARQ-ACK and the higher priority SR are multiplexed onto one PUCCH. For example, one PUCCH may be multiplexed to be used to carry a higher priority SR. And if the multiplexing condition is not met, the UE only transmits the PUCCH bearing the SR with higher priority, and the UE does not transmit the PUCCH bearing the HARQ-ACK with lower priority. For example, if a PUCCH carrying a lower priority HARQ-ACK overlaps in the time domain with a PUCCH carrying a higher priority SR, and the PUCCH carrying the lower priority HARQ-ACK has associated DCI or DCI format or PDCCH, the UE may determine whether to multiplex the PUCCH carrying the lower priority HARQ-ACK with the PUCCH carrying the higher priority SR on one PUCCH according to an indication in the DCI or DCI format or PDCCH. If no multiplexing is determined according to the DCI or the DCI format or the indication in the PDCCH, the UE transmits the PUCCH carrying the higher priority SR and does not transmit the PUCCH carrying the lower priority HARQ-ACK. For example, if there is overlap in the time domain of the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority SR, optionally the PUCCH carrying the lower priority HARQ-ACK has no associated DCI or DCI format or PDCCH, the UE may determine whether to multiplex the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority SR onto one PUCCH according to the higher layer signaling parameter configuration. This higher layer signaling parameter may be configured in the 3GPP parameter PUCCH-Config, for example. This higher layer signaling parameter may be configured in the 3GPP parameter PUCCH-format config, for example. This higher layer signaling parameter may be configured in the 3GPP parameter PUCCH-Resource, for example. This higher layer signaling parameter may be configured in the 3GPP parameter SPS-PUCCH-AN, for example. For example, the UE may report whether PUCCH format x is supported (e.g., PUCCH format x may be PUCCH format 0 or PUCCH format 1 or PUCCH format 2 or PUCCH format 3 or PUCCH format 4) to carry lower priority HARQ-ACKs and higher priority SRs.

It should be noted that the SR in this embodiment may be positive SR (positive SR) and/or negative SR (negative SR).

The multiplexing method specified by the method can improve the transmission probability of the HARQ-ACK with lower priority on the premise of ensuring the time delay and reliability of the SR with higher priority, and reduces the probability of downlink data retransmission, thereby improving the spectrum efficiency of the system. The method can also increase the scheduling flexibility by high-level signaling configuration or DCI dynamic indication whether multiplexing is possible.

According to an embodiment of the present invention, the UE may be configured with a PUCCH configuration list parameter (e.g., a parameter PUCCH-configuration list in 3 GPP), which may include two PUCCH configuration parameters (e.g., a parameter PUCCH-configuration in 3 GPP), including a first PUCCH configuration parameter and a second PUCCH configuration parameter. For example, the first PUCCH configuration parameter may correspond to a second priority (e.g., a smaller priority index (e.g., priority index 0)), that is, the priority of the first PUCCH configuration parameter may be the second priority (e.g., a smaller priority index (e.g., priority index 0)). The second PUCCH configuration parameter may correspond to a first priority (e.g., a larger priority index (e.g., priority index 1)), that is, the priority of the second PUCCH configuration parameter may be the first priority (e.g., a larger priority index (e.g., priority index 1)).

Optionally, if PUCCHs carrying UCI of different priorities overlap in the time domain, multiple PUCCHs may be multiplexed onto one PUCCH for transmission, or multiple PUCCHs may be preempted (prioritization), for example, a PUCCH of higher priority may be transmitted without a PUCCH of lower priority. There is a need for protocol specification for time units multiplexed and/or preempted by multiple PUCCHs of different priorities. For example, the time unit may be defined in a protocol describing a section of the UE reporting various UCI type procedures. For example, how many OFDM symbols a slot consists of can be defined in 3GPP TS 38.2139.2.5. For example, how many OFDM symbols a slot is composed of can be defined when pseudo code for multiplexing of multiple PUCCHs is performed in 3GPP TS 38.2139.2.5.

Alternatively, the time units multiplexed and/or preempted by multiple PUCCHs of different priorities may be slots, for example, PUCCH transmission resources that are not repeatedly transmitted in one slot are set as a set Q in 3GPP TS 38.213, and then the PUCCHs in the set Q are multiplexed and/or preempted according to a predefined rule. Wherein, for a Normal Cyclic Prefix (NCP), a slot may contain 14 OFDM symbols; one slot may contain 12 OFDM symbols for Extended Cyclic Prefix (ECP). For another example, in 3GPP TS 38.213, if the UE is configured with 2 PUCCH configuration parameters (e.g., 3GPP parameter PUCCH-configuration), or the UE is configured with different sub-slot lengths (e.g., 3GPP parameter subslotLengthForPUCCH), or the UE is configured with a PUCCH configuration list (e.g., 3GPP parameter PUCCH-configuration list), PUCCH transmission resources that are not repeatedly transmitted in one slot are set as a set Q, and PUCCHs in the set Q are multiplexed and/or preempted according to a predefined rule. Wherein, for a Normal Cyclic Prefix (NCP), a slot may contain 14 OFDM symbols; one slot may contain 12 OFDM symbols for Extended Cyclic Prefix (ECP).

Alternatively, the time units multiplexed and/or preempted on multiple PUCCHs of different priorities may be higher priority PUCCH time units. The higher priority PUCCH time units may be higher priority slots. For example, PUCCH transmission resources that are not repeatedly transmitted in one slot (e.g., a slot may be referred to herein as a sub-slot) are set as set Q in 3GPP TS 38.213, and the PUCCH in set Q is then multiplexed and/or preempted according to predefined rules. Wherein the number of OFDM symbols that a higher priority slot (e.g., a slot may refer to a sub-slot herein) may contain is indicated by a sub-slot length parameter (e.g., 3GPP parameter subslotlengthporpucch) in a higher priority PUCCH configuration parameter (e.g., the second PUCCH-configuration in the 3GPP parameter PUCCH-configuration list). If the sub-slot length parameter is not configured in the PUCCH configuration parameter of higher priority, for a Normal Cyclic Prefix (NCP), one slot may contain 14 OFDM symbols; one slot may contain 12 OFDM symbols for Extended Cyclic Prefix (ECP).

Alternatively, the time units multiplexed and/or preempted for multiple PUCCHs of different priorities may be lower priority PUCCH time units. The lower priority PUCCH time units may be lower priority slots. For example, PUCCH transmission resources that are not repeatedly transmitted in one slot (e.g., a slot may be referred to herein as a sub-slot) are set as set Q in 3GPP TS 38.213, and the PUCCH in set Q is then multiplexed and/or preempted according to predefined rules. Wherein the number of OFDM symbols that a lower priority slot (e.g., a slot may refer to a sub-slot herein) may contain is indicated by a sub-slot length parameter (e.g., 3GPP parameter subslotlengthporpucch) in a lower priority PUCCH configuration parameter (e.g., the first PUCCH-configuration in a 3GPP parameter PUCCH-configuration list). If the sub-slot length parameter is not configured in the PUCCH configuration parameters of lower priority, for a Normal Cyclic Prefix (NCP), one slot may contain 14 OFDM symbols; one slot may contain 12 OFDM symbols for Extended Cyclic Prefix (ECP).

Alternatively, the time unit multiplexed and/or preempted for multiple PUCCHs of different priorities may be the maximum of the lower priority PUCCH time units and the higher priority PUCCH time units.

Optionally, the time unit multiplexed and/or preempted on multiple PUCCHs of different priorities may be the minimum of the lower priority PUCCH time units and the higher priority PUCCH time units.

Alternatively, the time units multiplexed and/or preempted for multiple PUCCHs of different priorities may be the least common multiple of lower priority PUCCH time units and higher priority PUCCH time units.

Alternatively, the time unit for multiplexing and/or preempting a plurality of PUCCHs of different priorities may be a sub-slot length, and the sub-slot lengths of different priorities that the UE does not expect to be configured are different.

It should be noted that, if the time unit for multiplexing and/or preempting a plurality of PUCCHs with different priorities is the sub-slot length, a plurality of PUCCHs with the same and/or different priorities in each sub-slot may be multiplexed and/or preempted respectively according to the time sequence for the sub-slots in one slot, as described in detail below with the time unit as the slot.

The method prescribes the time unit multiplexing and/or preempting a plurality of PUCCHs with different priorities, ensures the consistency of the UE and the base station for understanding the time unit, and improves the reliability of PUCCH transmission.

The following specifically describes a method for multiplexing and/or preempting multiple PUCCHs with different priorities by taking time units as slots as an example. The method is also applicable to time units of other granularities, e.g., other time units as defined by the present invention.

Alternatively, PUCCHs in one slot that satisfy condition a may be grouped into a set Q1. For example, condition a may be a PUCCH carrying certain types of PUCCH, or condition a may be a PUCCH that may be multiplexed with a PUCCH carrying a higher priority HARQ-ACK. For example, the PUCCH carrying the higher priority HARQ-ACK, the PUCCH carrying the lower priority HARQ-ACK, and the PUCCH carrying the higher priority SR in one slot are grouped into the set Q1. Optionally, the PUCCH carrying HARQ-ACK also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213. For example, the resources in Q1 may be PUCCH resources carrying lower priority HARQ-ACKs and/or PUCCH resources carrying higher priority SRs.

Optionally, the resources in the set Q1 are multiplexed and/or preempted according to predefined rules. For example, the predefined rule may be a plurality of PUCCH multiplexing and/or preemption rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. Optionally, the resources in the set Q1 need to be ordered when multiplexing and/or preempting the resources. The ordering of the resources may be ordered according to predefined ordering rules.

Optionally, the sorting rule may also be according to the following rule: for PUCCH resources of different priorities, a higher priority PUCCH resource is located before or after a lower priority PUCCH resource. And for the PUCCH resources with the same priority, sequencing can be performed according to a sequencing rule when the plurality of PUCCHs are multiplexed in the process that the UE reports the plurality of UCI types in the PUCCH resources in 3GPP TS 38.213R 15.

The predefined ordering rule of the resources (e.g., PUCCH resources)/elements in one set in the present invention may also be according to the following rule:

alternatively, if the sub-slot lengths are configured, the sub-slots in a set are ordered according to their temporal order. For example, the sub-slots are ordered from early to late in chronological order. For example, a sub-slot may be a higher priority sub-slot. Alternatively, the sub-slots may be lower priority sub-slots.

Optionally, the resources within one sub-slot are ordered. For example, the priority of ordering according to UCI carried by the resource is ordered from high to low. The ordering priority of the UCI may be determined according to a predetermined rule according to the UCI type and/or the priority of the UCI. For example, the ordering priority of UCI from high to low may be: higher priority HARQ-ACK, lower priority HARQ-ACK, higher priority SR. For example, the ordering priority of UCI from high to low may also be: higher priority HARQ-ACK, higher priority SR, lower priority HARQ-ACK.

Alternatively, if a resource overlaps with multiple sub-slots, the ordering of the resource or the (belonging) sub-slot corresponding to the resource needs to be determined by a predefined rule.

Optionally, the ordering priority of the resource carrying multiple UCI types (e.g., PUCCH resource carrying multiplexed UCI) may be the highest ordering priority among the UCI carrying this resource. For example, the ordering priority of the resource carrying the multiplexed higher priority HARQ-ACK and the resource carrying the lower priority HARQ-ACK is the ordering priority of the higher priority HARQ-ACK of the bearer.

Optionally, the resources carrying the same UCI type are ordered according to a predefined rule. For example, the ordering rules defined by 3GPP TS38.213 may be followed.

Optionally, resources carrying negative SR that do not overlap in time domain with resources carrying HARQ-ACK and/or CSI are excluded/deleted from the set.

Optionally, the resources in a set are numbered. For example, numbering is done in order from small to large starting from 0.

The predefined ordering rules for resources/elements in a set according to the present invention can also be based on the following rules:

optionally, if the sub-slot length is configured, the resources (e.g., PUCCH resources) contained in the less numbered (or earlier) sub-slot (e.g., higher priority sub-slot, where the priority of the sub-slot may correspond to the priority corresponding to the PUCCH configuration parameter (e.g., parameter PUCCH-Config in 3 GPP) are located before the resources contained in the more numbered (or later) sub-slot (e.g., lower priority sub-slot).

In the same sub-slot (e.g., a higher priority sub-slot), resources carrying HARQ-ACKs (e.g., HARQ-ACKs may be higher priority HARQ-ACKs and/or lower priority HARQ-ACKs) precede resources carrying SRs (SRs may be positive SRs and/or negative SRs).

Optionally, the resources carrying higher priority HARQ-ACKs are located before the resources carrying lower priority HARQ-ACKs in the same sub-slot (e.g. higher priority sub-slot).

Optionally, if the resources carrying the lower priority HARQ-ACK overlap in time domain with one or more resources carrying the higher priority HARQ-ACK, the resources carrying the lower priority HARQ-ACK are located after the first resources carrying the higher priority HARQ-ACK. If the resources carrying the lower priority HARQ-ACK do not overlap in time domain with the resources carrying the higher priority HARQ-ACK and the resources carrying the lower priority HARQ-ACK overlap in time domain with one or more resources carrying a higher priority SR (the SR may be positive SR and/or negative SR), the resources carrying the lower priority HARQ-ACK are located after the first resource carrying the higher priority SR. Optionally, if the resource carrying the lower priority HARQ-ACK does not overlap in time domain with the resource carrying the higher priority HARQ-ACK and the resource carrying the lower priority HARQ-ACK does not overlap in time domain with the resource carrying the higher priority SR (the SR may be a positive SR and/or a negative SR) and the resource carrying the lower priority HARQ-ACK overlaps with the plurality of higher priority subslots, the resource carrying the lower priority HARQ-ACK belongs to the first higher priority subslot overlapping therewith, e.g., the resource carrying the lower priority HARQ-ACK is put into the set of higher priority subslots, and then multiplexed and/or preempted.

Optionally, the ordering priority of the resource carrying multiple UCI types (e.g., PUCCH resource carrying multiplexed UCI) may be the highest ordering priority among the UCI carrying this resource. For example, in the case that the ordering priority of the UCI is higher priority HARQ-ACK, lower priority HARQ-ACK, or higher priority SR from high to low, the ordering priority of the resource carrying the multiplexed higher priority HARQ-ACK and carrying the lower priority HARQ-ACK is the ordering priority of the higher priority HARQ-ACK of the bearer. Alternatively, the ordering priority of the UCI may also be, from high to low, higher priority SR, higher priority HARQ-ACK, lower priority HARQ-ACK.

Optionally, the resources carrying the same UCI type may be ordered as follows: the resource earlier in the first symbol precedes the resource later in the first symbol; the first resource with the same symbol, the resource with more symbols or longer duration is positioned before the resource with less symbols or shorter duration; the resources with the same first symbol and the same number of symbols or duration are arranged in any order. Alternatively, the resources carrying the same UCI type may be ordered as follows: the resource of the first symbol earlier is located before the resource of the first symbol later; the first resource with the same symbol, the resource with more symbols or longer duration is positioned behind the resource with less symbols or shorter duration; the resources with the same first symbol and the same number of symbols or duration are arranged in any order.

Optionally, the resources in a set are numbered. For example, the numbers are numbered in order from small to large starting from 0.

It should be noted that the sorting rule of the sets may also be applied to sorting of other sets in other embodiments of the present invention.

Optionally, after the resources in the set Q1 are sorted, PUCCH overlapping in time may be selected according to a predefined rule and a PUCCH resource may be determined to transmit the multiplexed UCI. For example, the method may be according to the method specified in 3GPP 38.2139.2.5.

For example, the resources in the set Q1 may be traversed from small to large, and if the selected resource overlaps the next resource in the time domain, the next or subsequent resources that overlap the selected resource in the time domain may be multiplexed onto one resource. In the set Q1, the resources carrying the multiplexed UCI replace the selected resources and delete the resources that overlap the selected resources. Reordering the set Q1 and re-traversing the resources in the set Q1 in order from small to large. The next resource is selected if the selected resource does not overlap with the next resource in the time domain. After the traversal of the set Q1 is finished, the UE sends the resources in the set Q1. It should be noted that after the traversal of the set Q1 is completed, there are no resources overlapping in the time domain in the Q1.

For example, set Q (which may be set Q1) is traversed and the resources transmitted by the UE are determined according to the following pseudocode-1.

[ pseudo code-1 ]

It should be noted that the pseudo-code-1 is simpler to implement, has less modification to the existing architecture, and can be implemented more conveniently based on the existing architecture.

For example, set Q (which may be set Q1) is traversed and the resources transmitted by the UE are determined according to the following pseudocode-2.

[ pseudo code-2 ]

It should be noted that, compared with the pseudo code-1, the pseudo code-2 can reduce PUCCH resources for transmitting a negative SR. Therefore, the resource for transmitting UCI is reduced, the energy conservation of the UE is facilitated, and the interference to other UE uplink transmission is reduced.

For example, as shown in fig. 7A, there are 3 PUCCHs in slot i, which are ordered according to the ordering rule in the present embodiment, and the PUCCH carrying the HARQ-ACK of higher priority and the PUCCH carrying the HARQ-ACK of lower priority are multiplexed onto one PUCCH according to pseudo code-1 and/or pseudo code-2, for example, this PUCCH may be the PUCCH carrying the HARQ-ACK of higher priority. After pseudocode-1 and/or pseudocode-2 are executed, the resources in Q1 are two non-overlapping resources, PUCCH carrying a higher priority SR and PUCCH carrying a higher priority HARQ-ACK and a lower priority HARQ-ACK, respectively. The UE transmits both PUCCHs. Fig. 7B orders the 3 PUCCHs according to the method defined by release 3GPP TS38.213R15, and the UE first preempts the PUCCH carrying the higher priority SR with the PUCCH carrying the lower priority HARQ-ACK according to pseudocode-1 and/or pseudocode-2. The UE only transmits the PUCCH carrying the higher priority SR, and the UE does not transmit the PUCCH carrying the lower priority HARQ-ACK. After pseudocode-1 and/or pseudocode-2 are executed, the resources in Q1 are two non-overlapping resources, PUCCH carrying higher priority SR and PUCCH carrying higher priority HARQ-ACK, respectively.

Compared with the prior art, the method can increase the transmission probability of the HARQ-ACK with lower priority, reduce the retransmission times of the downlink data, increase the spectrum efficiency of the system and reduce the time delay of the user plane.

For another example, the resources in the set Q1 may be traversed from small to large, and if the selected resource overlaps with the next resource in the time domain, the next or subsequent resources that overlap with the selected resource in the time domain may be multiplexed onto one resource. In the set Q1, the resources carrying the multiplexed UCI replace the selected resources and delete the resources that overlap with the selected resources. The set Q1 is reordered in the set Q1 and the resources in the set Q1 are traversed in descending order. If the selected resource does not overlap in time domain with the next resource, the next resource is selected. After the traversal of the set Q1 ends, the UE transmits the resources in the set Q1. It should be noted that after the traversal of the set Q1 is completed, there are no resources overlapping in the time domain in the Q1.

For example, set Q (which may be set Q1) is traversed and the resources transmitted by the UE are determined according to the following pseudocode-3.

[ pseudo code-3 ]

The method can improve the reliability of UCI transmission. And the network performance is improved.

For example, as shown in fig. 8A, the ordering method according to the present invention orders 7 PUCCHs carrying different UCI in one slot, and the multiplexed PUCCH resources are as shown in fig. 8B according to pseudo code-1. If the HP SR 3 is negative SR, the multiplexed PUCCH resources are as shown in fig. 8C according to the pseudo code-2.

Multiplexing and/or preempting PUCCHs of different priorities may also be in the following manner.

Multiplexing and/or preempting higher priority PUCCHs. For example, PUCCH carrying higher priority HARQ-ACK and PUCCH carrying higher priority SR are multiplexed and/or preempted. For example, the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the higher priority SR are put into one set, and then the resources in this set are multiplexed and/or preempted according to predefined rules.

Multiplexing and/or preempting lower priority PUCCHs and higher priority PUCCHs. For example, PUCCHs carrying lower priority HARQ-ACKs may be multiplexed and/or preempted with PUCCHs carrying higher priority HARQ-ACKs and/or higher priority SRs. For example, the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK are put into one set, and then the resources in this set are multiplexed and/or preempted according to predefined rules.

Multiplexing and/or preempting a lower priority PUCCH (e.g., a PUCCH carrying a lower priority HARQ-ACK) and a PUCCH carrying a higher priority HARQ-ACK. For example, the PUCCH carrying the HARQ-ACK containing the higher priority may be a PUCCH carrying only the higher priority HARQ-ACK. The PUCCH carrying the HARQ-ACK containing the higher priority may be a PUCCH carrying the higher priority HARQ-ACK and the higher priority SR. For example, a lower priority PUCCH (e.g., a PUCCH carrying a lower priority HARQ-ACK) and a PUCCH carrying a HARQ-ACK containing a higher priority are put into one set, and then resources in this set are multiplexed and/or preempted according to predefined rules.

Multiplexing and/or preempting lower priority PUCCHs (e.g., a PUCCH carrying lower priority HARQ-ACK or a PUCCH carrying lower priority HARQ-ACK and a PUCCH carrying higher priority HARQ-ACK) and a PUCCH carrying higher priority SR. For example, lower priority PUCCHs (e.g., the PUCCH carrying the lower priority HARQ-ACK or the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK) and the PUCCH carrying the higher priority SR are put into one set, and then the resources in this set are multiplexed and/or preempted according to predefined rules.

Multiplexing and/or preempting a lower priority PUCCH (e.g., a PUCCH carrying a lower priority HARQ-ACK) and a PUCCH carrying a higher priority HARQ-ACK. For example, lower priority PUCCHs (e.g., the PUCCH carrying the lower priority HARQ-ACK) and the PUCCH carrying the higher priority HARQ-ACK are put into one set, and then resources in this set are multiplexed and/or preempted according to predefined rules.

Multiplexing and/or preempting PUCCH carrying PUCCH containing higher priority HARQ-ACK and PUCCH carrying higher priority SR. For example, the PUCCH carrying HARQ-ACK containing higher priority may be a PUCCH carrying only HARQ-ACK of lower priority. The PUCCH carrying HARQ-ACK containing lower priority may be a PUCCH carrying higher priority HARQ-ACK and higher priority SR. For example, the PUCCH carrying the HARQ-ACK containing the higher priority and the PUCCH carrying the SR of the higher priority are put into one set, and then the resources in this set are multiplexed and/or preempted according to predefined rules.

Multiplexing and/or preempting lower priority PUCCHs (e.g., PUCCH carrying lower priority HARQ-ACK) and PUCCHs carrying higher priority SRs. For example, lower priority PUCCHs (e.g., PUCCHs carrying lower priority HARQ-ACKs) and PUCCHs carrying higher priority SRs are put into one set, and then resources in this set are multiplexed and/or preempted according to predefined rules.

The predefined rules for resource multiplexing and/or preemption in the set in the present method may reuse the method for resource multiplexing and/or preemption in the set defined in other embodiments or the method specified in 3GPP TS 38.213. The method defines the uplink control channel multiplexing method and improves the reliability of uplink transmission. The method can increase the transmission probability of the HARQ-ACK with lower priority, reduce the retransmission times of the downlink data, increase the frequency spectrum efficiency of the system and reduce the time delay of the user plane.

Hereinafter, the time unit is a higher priority PUCCH time unit. The higher priority PUCCH time units may be exemplified by higher priority slots/subslots to specify a method of multiplexing and/or preempting multiple PUCCHs of different priorities. The method is also applicable to time units of other granularities, e.g. other time units as defined by the present invention.

Alternatively, PUCCHs in one higher priority slot/subslot that satisfy condition B may constitute the set Q2. For example, condition B may be a PUCCH carrying certain types of PUCCH, or condition B may be a PUCCH that may be multiplexed with a PUCCH carrying a higher priority HARQ-ACK. For example, the PUCCH carrying the higher priority HARQ-ACK in one higher priority slot/sub-slot, the PUCCH carrying the higher priority SR, is grouped into the set Q2. For example, the PUCCH carrying the higher priority HARQ-ACK, the PUCCH carrying the lower priority HARQ-ACK, and the PUCCH carrying the higher priority SR in one higher priority slot/sub-slot are grouped into the set Q2. Optionally, the PUCCH carrying HARQ-ACK also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213. For example, the PUCCH in Q2 may be a PUCCH carrying a lower priority HARQ-ACK and/or a PUCCH carrying a higher priority SR.

Alternatively, if the PUCCH carrying the lower priority HARQ-ACK overlaps with multiple higher priority slots/subslots, the higher priority slot/subslot associated with the PUCCH carrying the lower priority HARQ-ACK needs to be determined. For example, the following manner may be adopted. Placing the PUCCH carrying the lower priority HARQ-ACK into the set Q2 of the first sub-slot of the plurality of higher priority slots/sub-slots. Alternatively, if there is no PUCCH carrying higher priority HARQ-ACK and/or PUCCH carrying higher priority SR in Q2, the lower priority HARQ-ACK may be carried with PUCCH resources of higher priority HARQ-ACK. Alternatively, one PUCCH resource within this slot is used to carry lower priority HARQ-ACKs according to predefined rules.

Alternatively, if the PUCCH carrying the lower priority HARQ-ACK overlaps with multiple higher priority slots/subslots, the higher priority slot/subslot associated with the PUCCH carrying the lower priority HARQ-ACK needs to be determined. For example, the following manner may be adopted. Optionally, if there is an overlap in the time domain between the PUCCH carrying the lower priority HARQ-ACK and one or more PUCCHs carrying higher priority HARQ-ACKs, the PUCCH carrying the lower priority HARQ-ACK is put into the set Q2 in which the first PUCCH carrying the higher priority HARQ-ACK in the one or more higher priority slots/sub-slots is located. If the PUCCH carrying the lower priority HARQ-ACK does not overlap in the time domain with the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the lower priority HARQ-ACK overlaps in the time domain with one or more PUCCHs carrying higher priority SRs (the SRs may be positive and/or negative SRs), the PUCCH carrying the lower priority HARQ-ACK is placed in the set Q2 of higher priority slots/subslots where the first PUCCH carrying the higher priority SR is located.

Alternatively, if the PUCCH carrying the lower priority HARQ-ACK overlaps with multiple higher priority slots/sub-slots, the higher priority slots/sub-slots associated with the PUCCH carrying the lower priority HARQ-ACK need to be determined. For example, the following manner may be adopted. Optionally, if there is an overlap in the time domain between the PUCCH carrying the lower priority HARQ-ACK and one or more PUCCHs carrying higher priority HARQ-ACKs, the PUCCH carrying the lower priority HARQ-ACK is put into the set Q2 in which the first PUCCH carrying the higher priority HARQ-ACK in the one or more higher priority slots/sub-slots is located. If the PUCCH carrying the lower priority HARQ-ACK does not overlap in time domain with the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the lower priority HARQ-ACK overlaps in time domain with one or more PUCCHs carrying higher priority positive SRs, the PUCCH carrying the lower priority HARQ-ACK is put into the set Q2 of higher priority slots/subslots in which the first PUCCH carrying the higher priority positive SR is. If the PUCCH carrying the lower priority HARQ-ACK does not overlap in time domain with the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the lower priority HARQ-ACK does not overlap in time domain with the PUCCH carrying the higher priority positive SR and the PUCCH carrying the lower priority HARQ-ACK overlaps in time domain with one or more PUCCHs carrying the higher priority negative SR, the PUCCH carrying the lower priority HARQ-ACK is placed in the set Q2 of higher priority slots/subslots in which the first PUCCH carrying the higher priority negative SR is located.

The method determines the set of the PUCCH with the lower priority HARQ-ACK, defines the behavior of the UE and improves the reliability of the transmission of the uplink control signaling.

Optionally, PUCCHs in the set Q2 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. Optionally, PUCCH in set Q2 may need to be ordered when multiplexing and/or preempting PUCCH. The ordering of the PUCCHs may be ordered according to a predefined ordering rule.

Optionally, the sorting rule may also be according to the following rule: for different priority PUCCHs, a higher priority PUCCH is located before or after a lower priority PUCCH. The PUCCHs with the same priority can be sorted according to the sorting rule when the UE reports multiple UCI types in the PUCCH in the 3GPP TS 38.213R 15. The ordering rules may also be in accordance with the ordering rules defined in other embodiments of the invention.

Optionally, in the present invention, the predefined ordering rule of the resources/elements in a set may also be according to the following rule:

the resources carrying the HARQ-ACK (e.g., the HARQ-ACK may be a higher priority HARQ-ACK and/or a lower priority HARQ-ACK) are located before the resources carrying the SR (the SR may be a positive SR and/or a negative SR).

Optionally, the resources carrying higher priority HARQ-ACKs are located before the resources carrying lower priority HARQ-ACKs.

Optionally, the resources carrying the same UCI type may be ordered as follows: the resource earlier in the first symbol precedes the resource later in the first symbol; the first resource with the same symbol, the resource with more symbols or longer duration is positioned before the resource with less symbols or shorter duration; the resources with the same first symbol and the same number or duration of symbols are arranged according to any order. Alternatively, the resources carrying the same UCI type may be ordered as follows: the resource earlier in the first symbol precedes the resource later in the first symbol; the first resource with the same symbol, the resource with more symbols or longer duration is positioned behind the resource with less symbols or shorter duration; the resources with the same first symbol and the same number of symbols or duration are arranged in any order.

Optionally, the predefined sorting rule of the resources/elements in one set in the present invention may also be according to the following rule:

the resources carrying higher priority HARQ-ACKs are located before the resources carrying SRs (which may be positive and/or negative SRs).

Optionally, the resources carrying the higher priority SR precede the resources carrying the lower priority HARQ-ACK.

Optionally, the resources carrying the same UCI type may be ordered as follows: the resource of the first symbol earlier is located before the resource of the first symbol later; the first resource with the same symbol, the resource with more symbols or longer duration is positioned before the resource with less symbols or shorter duration; the resources with the same first symbol and the same number of symbols or duration are arranged in any order. Alternatively, the resources carrying the same UCI type may be ordered as follows: the resource earlier in the first symbol precedes the resource later in the first symbol; the first resource with the same symbol, the resource with more symbols or longer duration is positioned behind the resource with less symbols or shorter duration; the resources with the same first symbol and the same number of symbols or duration are arranged in any order.

the resources carrying higher priority HARQ-ACKs are preceded by resources carrying SRs (the SRs may be positive and/or negative SRs).

Optionally, the resources carrying the lower priority HARQ-ACK precede the resources carrying the higher priority SR.

Optionally, the resources carrying the same UCI type may be ordered as follows: the resource earlier in the first symbol precedes the resource later in the first symbol; the first resource with the same symbol, the resource with more symbols or longer duration is positioned before the resource with less symbols or shorter duration; the resources with the same first symbol and the same number or duration of symbols are arranged according to any order. Alternatively, the resources carrying the same UCI type may be ordered as follows: the resource of the first symbol earlier is located before the resource of the first symbol later; the first resource with the same symbol, the resource with more symbols or longer duration is positioned behind the resource with less symbols or shorter duration; the resources with the same first symbol and the same number of symbols or duration are arranged in any order.

the UCI is first ordered according to the type of UCI carried. The resource with high priority is located before the resource with low priority. For example, the priority may be, from high to low, a higher priority HARQ-ACK, a lower priority HARQ-ACK, and a higher priority SR according to the UCI type. For example, the higher priority SR, the higher priority HARQ-ACK, and the lower priority HARQ-ACK may be in accordance with UCI type from high to low in priority.

Resources carrying the same UCI type or resources carrying the highest priority of UCI type may be ordered as follows: the resource earlier in the first symbol precedes the resource later in the first symbol; the first resource with the same symbol, the resource with more symbols or longer duration is positioned before the resource with less symbols or shorter duration; the resources with the same first symbol and the same number of symbols or duration are arranged in any order. Alternatively, the resources carrying the same UCI type may be ordered as follows: the resource earlier in the first symbol precedes the resource later in the first symbol; the first resource with the same symbol, the resource with more symbols or longer duration is positioned behind the resource with less symbols or shorter duration; the resources with the same first symbol and the same number of symbols or duration are arranged in any order.

It should be noted that the sorting rule in this embodiment may also be applied to sorting other sets in other embodiments of the present invention.

Optionally, after the resources in the set are ordered, PUCCH overlapping in time may be selected according to a predefined rule and one PUCCH resource may be determined to transmit the multiplexed UCI. For example, the method may be according to the method specified in 3GPP 38.2139.2.5. For example, the predefined rules may be multiplexing and/or preemption rules as defined in other embodiments of the present invention.

The approach specified by the method can also be combined with the ordering and/or specific multiplexing rules defined in other embodiments. The method defines the uplink control channel multiplexing method and improves the reliability of uplink transmission. The method can increase the transmission probability of the HARQ-ACK with lower priority, reduce the retransmission times of the downlink data, increase the spectrum efficiency of the system and reduce the time delay of the user plane.

For example, the sub-slot length parameter (e.g., the parameter subslotLengthForPUCCH in 3 GPP) of each of the first PUCCH configuration parameter and the second PUCCH configuration parameter may be 7 OFDM symbols, or 6 OFDM symbols, or 2 OFDM symbols. The sub-slot configuration length parameters in different PUCCH configuration parameters may be configured separately. If the sub-slot length parameter is not configured in one PUCCH configuration parameter, the scheduling time unit of the PUCCH configuration parameter is defaulted to be one slot. If a sub-slot length parameter is configured in one PUCCH configuration parameter, a scheduling time unit of the PUCCH configuration parameter configures a length OFDM symbol for the configured sub-slot.

Alternatively, if PUCCHs carrying UCI of different priorities overlap in the time domain, multiple PUCCHs may be multiplexed onto one PUCCH for transmission, or multiple PUCCHs may be preempted (priority), for example, a higher priority PUCCH may be transmitted without a lower priority PUCCH. There is a need for protocol specification for time units multiplexed and/or preempted by multiple PUCCHs of different priorities. For example, the time unit may be defined in a protocol describing a section of the UE reporting various UCI type procedures. For example, how many OFDM symbols a slot consists of can be defined in 3GPP TS 38.2139.2.5. For example, how many OFDM symbols a slot is composed of can be defined when pseudo code for multiplexing of multiple PUCCHs is performed in 3GPP TS 38.2139.2.5.

Alternatively, the time unit multiplexed and/or preempted by the plurality of PUCCHs of different priorities may be the time unit defined in other embodiments of the present invention.

Alternatively, the time unit multiplexed and/or preempted for multiple PUCCHs of the same priority may be a sub-slot of this priority.

Multiplexing and/or preempting PUCCHs of different priorities within a time unit (a time unit may be a slot) may be performed in the following manner.

Optionally, higher priority PUCCHs are multiplexed and/or preempted. For example, PUCCH carrying higher priority HARQ-ACK and PUCCH carrying higher priority SR are multiplexed and/or preempted. For example, methods defined in other embodiments of the invention multiplex and/or preempt.

Multiplexing and/or preempting the PUCCH carrying the lower priority HARQ-ACK with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR if the PUCCH carrying the lower priority HARQ-ACK overlaps the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain. For example, methods defined in other embodiments of the invention multiplex and/or preempt.

Multiplexing and/or preempting PUCCHs carrying lower priority SRs and/or PUCCHs carrying CSI (e.g., lower priority CSI) and/or PUCCHs carrying lower priority HARQ-ACKs (e.g., lower priority HARQ-ACKs that do not overlap in the time domain with PUCCHs carrying higher priority HARQ-ACKs and/or higher priority SRs). For example, multiplexing and/or preemption is in accordance with the multiplexing and/or preemption methods specified by 3GPP TS 38.213. For example, methods defined in other embodiments of the invention multiplex and/or preempt.

If the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK overlaps with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain, the UE transmits the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR and does not transmit the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK.

Optionally, higher priority PUCCHs are multiplexed and/or preempted. For example, PUCCH carrying higher priority HARQ-ACK and PUCCH carrying higher priority SR are multiplexed and/or preempted. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention.

Multiplexing and/or preempting the PUCCH carrying the lower priority HARQ-ACK with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR if the PUCCH carrying the lower priority HARQ-ACK overlaps the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention.

Multiplexing and/or preempting PUCCHs carrying lower priority SRs and/or PUCCHs carrying CSI (e.g., lower priority CSI) and/or PUCCHs carrying lower priority HARQ-ACKs (e.g., lower priority HARQ-ACKs that do not overlap in time domain with PUCCHs carrying higher priority HARQ-ACKs and/or higher priority SRs). For example, multiplexing and/or preemption is in accordance with the multiplexing and/or preemption methods specified by 3GPP TS 38.213. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention.

If the PUCCH carrying the SR and/or CSI with lower priority overlaps with the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority in time domain, the UE transmits the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority, and the UE does not transmit the PUCCH carrying the SR and/or CSI with lower priority. If there is an overlap in the time domain between the PUCCH carrying the HARQ-ACK containing the lower priority and the PUCCH carrying the HARQ-ACK of the higher priority and/or the SR of the higher priority, the UE multiplexes the HARQ-ACK of the lower priority and/or the HARQ-ACK of the higher priority and/or the SR of the higher priority to one PUCCH. For example, multiplexed according to methods specified in other embodiments of the invention. For example, the PUCCH carrying HARQ-ACK containing lower priority may be a PUCCH carrying only lower priority HARQ-ACK. For example, the PUCCH carrying the HARQ-ACK containing the lower priority may be a PUCCH carrying the HARQ-ACK of the lower priority and/or the SR and/or CSI of the lower priority.

And multiplexing and/or preempting the PUCCH carrying the higher-priority HARQ-ACK by the PUCCH carrying the higher-priority SR. For example, methods defined in other embodiments of the invention multiplex and/or preempt.

If the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK overlaps with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain, the UE transmits the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR, and the UE does not transmit the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK.

Multiplexing and/or preempting higher priority PUCCHs. For example, PUCCH carrying higher priority HARQ-ACK and PUCCH carrying higher priority SR are multiplexed and/or preempted. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention.

Multiplexing and/or preempting PUCCHs carrying lower priority SRs and/or PUCCHs carrying CSI (e.g., lower priority CSI) and/or PUCCHs carrying lower priority HARQ-ACKs (e.g., lower priority HARQ-ACKs that do not overlap in the time domain with PUCCHs carrying higher priority HARQ-ACKs and/or higher priority SRs). For example multiplexing and/or preemption in accordance with the multiplexing and/or preemption methods specified by 3GPP TS 38.213. For example, methods defined in other embodiments of the invention multiplex and/or preempt.

If the PUCCH carrying the SR and/or CSI with lower priority overlaps with the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority in time domain, the UE transmits the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority, and the UE does not transmit the PUCCH carrying the SR and/or CSI with lower priority. If there is an overlap in the time domain between the PUCCH carrying the HARQ-ACK containing the lower priority and the PUCCH carrying the HARQ-ACK of the higher priority and/or the SR of the higher priority, the UE multiplexes the HARQ-ACK of the lower priority and/or the HARQ-ACK of the higher priority and/or the SR of the higher priority to one PUCCH. For example, multiplexed according to methods specified in other embodiments of the invention. For example, the PUCCH carrying HARQ-ACK containing lower priority may be the PUCCH carrying only lower priority HARQ-ACK. For example, the PUCCH carrying the HARQ-ACK containing the lower priority may be a PUCCH carrying the HARQ-ACK of the lower priority and/or the SR and/or CSI of the lower priority.

Optionally, the lower priority PUCCH is multiplexed and/or preempted. For example, PUCCH carrying lower priority HARQ-ACK, and/or PUCCH carrying lower priority SR, and/or PUCCH carrying CSI (e.g., lower priority CSI) may be multiplexed and/or preempted. For example, methods defined in other embodiments of the invention multiplex and/or preempt. For example, multiplexing and/or preemption is in accordance with the multiplexing and/or preemption methods specified by 3GPP TS 38.213.

Multiplexing and/or preempting the PUCCH carrying the lower priority HARQ-ACK with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR if the PUCCH carrying the lower priority HARQ-ACK overlaps the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention. For example, the PUCCH carrying HARQ-ACK containing lower priority may be the PUCCH carrying only lower priority HARQ-ACK. For example, the PUCCH carrying the HARQ-ACK containing the lower priority may be a PUCCH carrying the HARQ-ACK of the lower priority and/or the SR and/or CSI of the lower priority.

If the PUCCH carrying the SR and/or CSI with lower priority overlaps with the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority in time domain, the UE transmits the PUCCH carrying the HARQ-ACK with higher priority and/or the SR with higher priority, and the UE does not transmit the PUCCH carrying the SR and/or CSI with lower priority.

The approach specified by the method can also be combined with the ordering and/or specific multiplexing rules defined in other embodiments. The method defines the uplink control channel multiplexing method and improves the reliability of uplink transmission. The method can increase the transmission probability of the HARQ-ACK with lower priority, reduce the retransmission times of the downlink data, increase the frequency spectrum efficiency of the system and reduce the time delay of the user plane.

Optionally, lower priority PUCCHs are multiplexed and/or preempted (e.g., PUCCH in one lower priority PUCCH time unit). For example, PUCCH carrying lower priority HARQ-ACK, and/or PUCCH carrying lower priority SR, and/or PUCCH carrying CSI (e.g., lower priority CSI) may be multiplexed and/or preempted. For example, methods defined in other embodiments of the invention multiplex and/or preempt. For example, multiplexing and/or preemption is in accordance with the multiplexing and/or preemption methods specified by 3GPP TS 38.213. At this time, the PUCCH time units multiplexed and/or preempted by the PUCCH may be lower priority PUCCH time units.

Optionally, higher priority PUCCHs and/or lower priority PUCCHs are multiplexed and/or preempted. For example, PUCCH carrying higher priority HARQ-ACK and/or PUCCH carrying higher priority SR and/or PUCCH carrying lower priority HARQ-ACK (PUCCH carrying lower priority HARQ-ACK may be PUCCH carrying lower priority HARQ-ACK and/or lower priority SR and/or lower priority CSI) may be multiplexed and/or preempted. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention. For example, the PUCCH carrying the HARQ-ACK containing the lower priority is put into the set Q of higher priority, and the PUCCHs in this set Q of higher priority are then multiplexed and/or preempted. At this time, the PUCCH multiplexing and/or preempting time units may be higher priority PUCCH time units.

Multiplexing and/or preempting the PUCCH carrying the HARQ-ACK containing the lower priority with the PUCCH carrying the HARQ-ACK containing the higher priority and/or the SR containing the higher priority if there is an overlap in time domain between the PUCCH carrying the HARQ-ACK containing the lower priority and the PUCCH carrying the HARQ-ACK containing the higher priority and/or the SR containing the higher priority. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention. For example, the PUCCH carrying HARQ-ACK containing lower priority may be the PUCCH carrying only lower priority HARQ-ACK. For example, the PUCCH carrying the HARQ-ACK containing the lower priority may be the PUCCH carrying the HARQ-ACK containing the lower priority and/or the SR and/or CSI of the lower priority.

Multiplexing and/or preempting the PUCCH carrying the lower priority HARQ-ACK and/or the higher priority SR with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR if the PUCCH carrying the lower priority HARQ-ACK and/or the lower priority SR and/or CSI overlaps with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention. The UE does not send (drop) the lower priority SR and/or CSI.

If the PUCCH carrying the lower priority SR and/or CSI overlaps with the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in a time domain, the UE transmits the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR, and does not transmit the PUCCH carrying the lower priority SR and/or CSI.

The manner in which the method is specified may also be combined with ordering and/or specific multiplexing rules defined in other embodiments. The method defines the uplink control channel multiplexing method and improves the reliability of uplink transmission. The method can increase the transmission probability of the HARQ-ACK with lower priority, reduce the retransmission times of the downlink data, increase the spectrum efficiency of the system and reduce the time delay of the user plane.

The method can reuse the traditional PUCCH multiplexing method, reduce the complexity of UE realization and reduce the UE power consumption.

For example, the PUCCH transmitted by the UE may be determined as follows.

The PUCCHs in one slot that satisfy condition a may be grouped into a set Q1. For example, condition a may be a PUCCH carrying certain types of PUCCH, or condition a may be a PUCCH that may be multiplexed with a PUCCH carrying a higher priority HARQ-ACK. For example, the PUCCH carrying the higher priority HARQ-ACK, the PUCCH carrying the lower priority HARQ-ACK, and the PUCCH carrying the higher priority SR in one slot are grouped into the set Q1. Optionally, the PUCCH carrying HARQ-ACK also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213.

The PUCCHs in one slot that satisfy condition B may be grouped into a set Q2. For example, condition B may be a PUCCH carrying certain types of PUCCH, or condition B may be a PUCCH that may not be multiplexed with a PUCCH carrying a higher priority HARQ-ACK. For example, the PUCCH carrying the SR of lower priority in one slot and the PUCCH carrying the CSI are grouped into a set Q2. Optionally, the PUCCH also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213.

Optionally, PUCCHs in the set Q2 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH for reporting a plurality of UCI types by the UE in 3GPP TS 38.213R 15. At this time, the PUCCH in the set Q2 is a multiplexed PUCCH.

Optionally, PUCCHs in the set Q1 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. Optionally, when the PUCCHs in the set Q1 are multiplexed, the ordering of the PUCCHs may be ordered according to a predefined ordering rule.

It should be noted that the sorting rule of the set Q1 may also be applied to sorting other sets in other embodiments of the present invention.

Optionally, if the PUCCH in the set Q1 overlaps with the PUCCH in the set Q2 before or after multiplexing, the PUCCH in the set Q2 is deleted, i.e., the UE does not transmit the PUCCH in the set Q2. Or, optionally, if the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in the set Q1 overlaps with the PUCCH in the set Q2 in time domain before or after multiplexing, the PUCCH in the set Q2 is deleted, i.e., the UE does not transmit the PUCCH in the set Q2.

Optionally, PUCCH carrying lower priority HARQ-ACK only in set Q1 is deleted from set Q1 and put in set Q2. Optionally, the PUCCHs in the set Q2 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. Alternatively, if the PUCCH in set Q1 overlaps with the PUCCH in set Q2 in the time domain, the PUCCH in set Q2 is deleted, i.e., the UE does not transmit the PUCCH in set Q2.

The UE transmits PUCCH in set Q1 and set Q2.

The method can increase the transmission probability of the SR and CSI with lower priority. For example, there are 3 PUCCHs in a slot, PUCCH1 carries lower priority HARQ-ACK information, PUCCH2 carries lower priority CSI information, and PUCCH3 carries higher priority HARQ-ACK information. According to the method, the PUCCH1 and the PUCCH3 are multiplexed and then transmitted by the PUCCH4, the PUCCH4 and the PUCCH2 are not overlapped in a time domain, and the PUCCH2 and the PUCCH4 can be transmitted. In the final step of the method, if the multiplexed PUCCH in set Q2 overlaps with the PUCCH in set Q1 in time domain, the PUCCH in set Q2 is deleted, i.e. the UE does not transmit the PUCCH in set Q2. The complexity of UE implementation can be reduced, the complexity of a protocol is also reduced, and the situation that PUCCH resources multiplexed by HARQ-ACK with lower priority and HARQ-ACK with higher priority and/or SR with higher priority overlap with PUCCH resources in the set Q1 in time domain is avoided.

For example, PUCCH transmitted by a UE may be determined as follows

Step 0A: the PUCCHs in one slot that satisfy condition a are grouped into a set Q1. For example, condition a may be a PUCCH carrying certain types of PUCCH, or condition a may be a PUCCH that may be multiplexed with a PUCCH carrying a higher priority HARQ-ACK. For example, the PUCCH carrying the higher priority HARQ-ACK, the PUCCH carrying the lower priority HARQ-ACK, and the PUCCH carrying the higher priority SR in one slot are grouped into the set Q1. Optionally, the PUCCH carrying HARQ-ACK also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213.

Step 0B: and composing the PUCCHs meeting the condition B in one slot into a set Q2. For example, condition B may be a PUCCH carrying certain types of PUCCH, or condition B may be a PUCCH that may not be multiplexed with a PUCCH carrying a higher priority HARQ-ACK. For example, the PUCCH carrying the SR of lower priority in one slot and the PUCCH carrying the CSI are grouped into a set Q2. Optionally, the PUCCH also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213.

Step 1: optionally, the PUCCHs in the set Q2 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. At this time, the PUCCH in the set Q2 is a multiplexed PUCCH.

And 2, step: optionally, PUCCHs in the set Q1 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. Optionally, if the PUCCH in the set Q1 overlaps with the PUCCH in the set Q2 before or after multiplexing, the PUCCH in the set Q2 is deleted, i.e., the UE does not transmit the PUCCH in the set Q2. Or, optionally, if the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR in the set Q1 overlaps with the PUCCH in the set Q2 in time domain before or after multiplexing, the PUCCH in the set Q2 is deleted, i.e., the UE does not transmit the PUCCH in the set Q2.

And step 3: optionally, PUCCH carrying lower priority HARQ-ACK only in set Q1 is deleted from set Q1 and put in set Q2. Optionally, the PUCCHs in the set Q2 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. Alternatively, if the multiplexed PUCCH in set Q2 that does not contain lower priority HARQ-ACKs overlaps in the time domain with the PUCCH in set Q1, the PUCCH in set Q2 is deleted, i.e., the UE does not transmit the PUCCH in set Q2. Optionally, if the PUCCH in the set Q2 containing the HARQ-ACK with the lower priority is time-domain overlapped with the PUCCH in the set Q1, the HARQ-ACK with the lower priority in the PUCCH in the set Q2 is time-domain-overlapped with the PUCCH in the set Q1, the multiplexed PUCCH is placed in the set Q1, and the PUCCH that is time-domain-overlapped with the PUCCH in the set Q1 is deleted from the set Q2.

Optionally, the

steps

1,2,3 are iterated until all PUCCHs in the set Q1 and the set Q2 do not overlap in the time domain.

The UE transmits PUCCH in set Q1 and set Q2.

The method can increase the transmission probability of SR and CSI with lower priority. The method can also increase the transmission probability of the HARQ-ACK with lower priority, reduce the transmission time delay of the downlink data and improve the frequency spectrum efficiency of the system.

For example, the PUCCH transmitted by the UE may be determined as follows

Step 0A: the PUCCHs in one slot that satisfy condition C are grouped into a set Q3. For example, condition C may be to carry certain types of PUCCH, or condition C may be to carry a higher priority PUCCH. For example, the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the higher priority SR in one slot are grouped into a set Q3. Optionally, the PUCCH carrying HARQ-ACK also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213.

Step 0B: and forming the PUCCHs meeting the condition D in one slot into a set Q4. For example, condition D may be to carry certain types of PUCCH, or condition D may be to carry a lower priority PUCCH. For example, the PUCCH carrying the HARQ-ACK of lower priority, the PUCCH carrying the SR of lower priority, and the PUCCH carrying the CSI in one slot are grouped into the set Q4. Optionally, the PUCCH carrying HARQ-ACK also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213.

Step 1: optionally, the PUCCHs in the set Q4 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. At this time, the PUCCH in the set Q4 is a multiplexed PUCCH.

Step 2: optionally, PUCCHs in the set Q3 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. Optionally, if the PUCCH in the set Q3 overlaps with the PUCCH in the set Q4 before or after multiplexing, the PUCCH in the set Q4 is deleted, i.e., the UE does not transmit the PUCCH in the set Q4. Optionally, if the PUCCH in the set Q3 overlaps with the PUCCH carrying only SR and/or CSI of lower priority in the set Q4 in the time domain before or after multiplexing, the PUCCH in the set Q4 is deleted, i.e., the UE does not transmit the PUCCH in the set Q4. Optionally, if the PUCCH in set Q3 overlaps with the PUCCH in set Q4 not carrying lower priority HARQ-ACK in time domain before or after multiplexing, this PUCCH in set Q4 is deleted, i.e., the UE does not transmit this PUCCH in set Q4. Optionally, if the PUCCH in the set Q3 overlaps with the PUCCH carrying the lower priority HARQ-ACK in the set Q4 in time domain before or after multiplexing, the PUCCH in the set Q2 is deleted and the HARQ-ACK carrying the lower priority in the PUCCH in the set Q4 is multiplexed with the PUCCH in the set Q1 in time domain, and the multiplexed PUCCH is put into the set Q1. It should be noted that the PUCCH carrying the lower priority HARQ-ACK in the set Q4 may be the PUCCH carrying only the lower priority HARQ-ACK in the set Q4; alternatively, the PUCCH carrying lower priority HARQ-ACK in set Q4 may be the PUCCH carrying only lower priority HARQ-ACK in set Q4;

Optionally, step 1 and step 2 are iterated until all PUCCHs in the set Q3 and the set Q4 do not overlap in the time domain.

The method is simple to realize, has small change to the existing protocol, can reduce the processing time of the UE, reduces the time delay of the user plane and improves the network performance.

The following describes a method for multiplexing and/or preempting multiple PUCCHs with different priorities by taking a time unit as a higher-priority sub-slot as an example. The method is also applicable to time units of other granularities, e.g. other time units as defined by the present invention.

The PUCCHs in one slot are divided into two groups, wherein the first group is the PUCCH with higher priority, and the second group is the PUCCH with lower priority. The PUCCHs of the first group are multiplexed first and then the PUCCHs of the second group are multiplexed or preempted. Optionally, none of the PUCCHs is repeatedly transmitted.

For example, the PUCCH transmitted by the UE may be determined as follows

Step 0B: and composing the PUCCHs meeting the condition D in one slot into a set Q4. For example, condition D may be to carry certain types of PUCCH, or condition D may be to carry a lower priority PUCCH. For example, the PUCCH carrying the HARQ-ACK of lower priority, the PUCCH carrying the SR of lower priority, and the PUCCH carrying the CSI in one slot are grouped into the set Q4. Optionally, the PUCCH carrying HARQ-ACK also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213.

Step 1: optionally, PUCCHs in the set Q4 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. At this time, the PUCCH in the set Q4 is a multiplexed PUCCH.

Step 2: optionally, the PUCCHs in the set Q3 are multiplexed according to a predefined rule. For example, the predefined rule may be a plurality of PUCCH multiplexing rules defined in the PUCCH reporting of multiple UCI types by the UE in 3GPP TS 38.213R 15. Optionally, if the PUCCH in the set Q3 overlaps with the PUCCH in the set Q4 before or after multiplexing, the PUCCH in the set Q4 is deleted, i.e., the UE does not transmit the PUCCH in the set Q4. Optionally, if the PUCCH in the set Q3 overlaps with the PUCCH carrying only SR and/or CSI of lower priority in the set Q4 in the time domain before or after multiplexing, the PUCCH in the set Q4 is deleted, i.e., the UE does not transmit the PUCCH in the set Q4. Optionally, if the PUCCH in set Q3 overlaps with the PUCCH in set Q4 not carrying lower priority HARQ-ACK in time domain before or after multiplexing, this PUCCH in set Q4 is deleted, i.e., the UE does not transmit this PUCCH in set Q4. Optionally, if the PUCCH in the set Q3 overlaps with the PUCCH carrying the lower priority HARQ-ACK in the set Q4 in time domain before or after multiplexing, the PUCCH in the set Q2 is deleted and the HARQ-ACK carrying the lower priority in the PUCCH in the set Q4 is multiplexed with the PUCCH in the set Q1 in time domain, and the multiplexed PUCCH is put into the set Q1. It should be noted that the PUCCH carrying the lower priority HARQ-ACK in the set Q4 may be the PUCCH carrying only the lower priority HARQ-ACK in the set Q4; alternatively, the PUCCH carrying lower priority HARQ-ACKs in set Q4 may be the PUCCH carrying lower priority HARQ-ACKs only in set Q4;

The method is simple to realize, changes little to the existing protocol, can reduce the processing time of the UE, reduces the user plane time delay and improves the network performance.

It should be noted that the multiplexing and/or preemption method defined in the present invention is also applicable to the same priority scenario. E.g., HARQ-ACK, and/or SR, and/or CSI of the same priority.

According to an embodiment of the present invention, if there is a PUCCH carrying HARQ-ACK and/or CSI and a PUCCH carrying one or more SRs within one time unit, multiplexing may be performed according to the following manner.

Multiplexing all configured SRs and HARQ-ACKs and/or CSI within one time unit. For example, the number of all configured SRs in a time unit is K, which can be expressed as [ log ]₂(K+1)]To indicate a positive or negative SR. For example, all 0 s indicate negative SR, and the binary number i indicates ith SR in this time unit. For example, the SRs may be ordered from small to large according to the number. Optionally, the method may be applicable to PUCCH format 2 and/or PUCCH format 3 and/or PUCCH format 4.

As shown in fig. 9, there are 3 PUCCHs in one time unit. One negative SR and HARQ-ACK (e.g., PUCCH carrying HARQ-ACK is PUCCH format 2 and/or PUCCH format 3 and/or PUCCH format 4), and positive SRs are overlapped. According to the method specified by 3GPP 38.213, the UE may determine one PUCCH resource to transmit HARQ-ACK and SR, and the negative SR may be multiplexed with HARQ-ACK on the PUCCH of HARQ-ACK. The PUCCH carrying HARQ-ACK and negative SR does not overlap with the positive SR in time domain. The protocol does not define which PUCCH the UE transmits. An improved approach is for the protocol to specify that the UE transmits a PUCCH containing HARQ-ACK. Alternatively, positive SR and negative SR and HARQ-ACK are multiplexed to one PUCCH according to the present invention.

Alternatively, when the SR, CSI, and HARQ-ACK in a time unit are ordered, it can be specified that the PUCCH carrying the HARQ-ACK is located before the PUCCH carrying the HARQ-ACK.

And the PUCCH containing the CSI is positioned before the PUCCH containing no CSI.

Alternatively, when the SR, CSI, and HARQ-ACK in a time unit are ordered, it may be specified that the PUCCH carrying the HARQ-ACK is located before the PUCCH carrying the SR.

The PUCCH carrying CSI is located before the PUCCH carrying SR.

The method can ensure the consistency of the UE and the base station for understanding the transmission of the uplink control channel, improve the reliability of uplink transmission, avoid the condition that the UE does not send HARQ-ACK, reduce the probability of downlink data retransmission, improve the frequency spectrum efficiency and reduce the time delay of a user plane.

If there is an overlap in the time domain between the PUCCH carrying the HARQ-ACK of lower priority and the PUCCH carrying the SR of higher priority and the PUCCH carrying the SR of lower priority, how to solve PUCCH multiplexing is a problem.

For example, a PUCCH carrying a lower priority HARQ-ACK may be multiplexed with a PUCCH carrying a higher priority SR by protocol specification and/or higher layer signaling configuration and/or DCI dynamic indication that the UE does not transmit the PUCCH carrying the lower priority SR. The method can ensure the transmission of the SR information with higher priority. And reducing the uplink transmission delay of the higher priority data. It should be noted that the method can be applied to all PUCCH formats. Alternatively, the method may be adapted to a specific PUCCH format. For example, the protocol may specify and/or configure whether to support the present method by higher layer signaling according to each format of PUCCH carrying lower priority HARQ-ACK. For example, the number of bits N of the higher priority SR in the multiplexed UCI _SRMay be determined by the number K of higher priority SRs overlapping the PUCCH carrying lower priority HARQ-ACKs. N is a radical of_SRK. Bit number N of higher priority SR in multiplexed UCI_SRCan be controlled within a time unitThe number K of higher priority SRs overlapping with PUCCH carrying lower priority HARQ-ACK is determined. This time unit may be a higher priority PUCCH time unit. The correspondence between the PUCCH carrying the HARQ-ACK of lower priority and the PUCCH time unit of higher priority may be determined by the method specified in other embodiments of the present invention. Or the bit number N of the SR with higher priority in the UCI after multiplexing_SRMay be determined by the number K of higher priority SRs configured within a time unit. A K number of bitmaps may be used to indicate higher priority SR information.

For example, a PUCCH carrying a lower priority HARQ-ACK may be dynamically indicated by protocol specification and/or higher layer signaling configuration and/or DCI multiplexed to one PUCCH with a PUCCH carrying a higher priority SR and a PUCCH carrying a lower priority HARQ-ACK. The method can increase the transmission probability of the SR with lower priority on the premise of ensuring the transmission of the SR information with higher priority. And reducing the uplink transmission delay of the data with higher priority and the data with lower priority. It should be noted that the method can be applied to all PUCCH formats. Alternatively, the method may be adapted to a specific PUCCH format. For example, the protocol may specify and/or configure whether to support the present method by higher layer signaling according to each format of PUCCH carrying lower priority HARQ-ACK. For example, if the PUCCH carrying the lower priority HARQ-ACK is PUCCH format 2 and/or 3 and/or 4, the PUCCH carrying the lower priority HARQ-ACK is multiplexed with the PUCCH carrying the higher priority SR and the PUCCH carrying the lower priority HARQ-ACK to one PUCCH. The number of bits of the higher priority SR in the multiplexed UCI may be determined by methods specified in other embodiments of the present invention. The number of bits of the SR of lower priority in the multiplexed UCI may be determined by methods specified in other embodiments of the present invention. Alternatively, the number of bits of the SR of lower priority in the multiplexed UCI may be determined in the method specified in 3GPP TS 38.213. The bit ordering in the multiplexed UCI can be HARQ-ACK with lower priority, SR with higher priority and SR with lower priority. The bit ordering in the multiplexed UCI may be higher priority SRs, lower priority HARQ-ACKs, lower priority SRs.

For example, if the PUCCH carrying the HARQ-ACK of lower priority overlaps in time domain with more than one (2 or more) PUCCH carrying the SR of higher priority, the UE transmits the PUCCH carrying the SR of higher priority and the UE does not transmit the PUCCH carrying the HARQ-ACK of lower priority, which may be specified by a protocol and/or higher layer signaling configuration and/or DCI dynamic indication. The method can ensure the transmission of the SR information with higher priority. And reducing the uplink transmission delay of the higher priority data. It should be noted that the method can be applied to all PUCCH formats. Alternatively, the method may be applicable to a specific PUCCH format. For example, the protocol may specify and/or configure whether to support the present method by higher layer signaling according to each format of PUCCH carrying lower priority HARQ-ACK.

For example, the UE may transmit the PUCCH carrying the higher priority SR and the UE may not transmit the PUCCH carrying the lower priority HARQ-ACK if the PUCCH carrying the lower priority HARQ-ACK overlaps in time domain with the PUCCH carrying the higher priority SR in more than one (e.g., greater than or equal to 2) higher priority PUCCH time units (e.g., higher priority slots/subslots), which may be specified by a protocol and/or higher layer signaling configuration and/or DCI dynamics. The method can ensure the transmission of the SR information with higher priority. And reducing the uplink transmission delay of the higher priority data. It should be noted that the method can be applied to all PUCCH formats. Alternatively, the method may be adapted to a specific PUCCH format. For example, the protocol may specify and/or configure whether to support the present method by higher layer signaling according to each format of PUCCH carrying lower priority HARQ-ACK.

For example, it may be specified by a protocol and/or higher layer signaling configuration and/or DCI dynamic indication that a PUCCH carrying a lower priority HARQ-ACK may be associated into one of the higher priority PUCCH time units (e.g., higher priority slot/subslot) by a predefined rule if the PUCCH carrying a lower priority HARQ-ACK overlaps in time domain with a PUCCH carrying a higher priority SR of more than one (greater than or equal to 2) higher priority PUCCH time units (e.g., higher priority slot/subslot), or if the PUCCH carrying a lower priority HARQ-ACK overlaps in time domain with more than one (greater than or equal to 2) higher priority PUCCH time units (e.g., higher priority slot/subslot). For example, the predefined rules may be rules defined in other embodiments of the invention. In a high priority PUCCH time unit (e.g., within a higher priority slot/subslot), the PUCCH carrying the lower priority HARQ-ACK is multiplexed with the higher priority SR (e.g., SR may be SR. that overlaps in time domain with the PUCCH of the lower priority HARQ-ACK-for example, SR may be SR configured within this time unit) to one PUCCH resource. This PUCCH resource may be a higher priority PUCCH resource, e.g., a PUCCH resource that may transmit a higher priority HARQ-ACK and/or other PUCCH resources (e.g., a specifically configured PUCCH resource). How to determine which PUCCH resource to use in the PUCCH resources of higher priority HARQ-ACK may be determined using the PUCCH resources of HARQ-ACK and SR of the same priority as specified in 3GPP TS 38.213.

It should be noted that the SR in the present invention may be a positive SR and/or a negative SR if there is no specific description. The embodiments of the invention are respectively suitable for three scenes, namely positive SR, negative SR and positive and negative SR.

It should be noted that, in the present invention, whether the lower priority HARQ-ACK can be multiplexed with the higher priority SR or not may be explicitly indicated (for example, there is a dedicated field in the DCI to indicate) and/or implicitly indicated (for example, indicated by a certain field in the DCI that indicates other information) in the downlink DCI for scheduling the lower priority HARQ-ACK.

The invention provides a processing method for overlapping the PUCCH bearing the HARQ-ACK with the lower priority with the PUCCH bearing the SR with the higher priority and the PUCCH bearing the SR with the lower priority in the time domain, thereby defining the behavior of the UE, improving the reliability of the transmission of the SR with the higher priority and reducing the uplink transmission delay of the data with the higher priority. The flexibility of scheduling can be improved.

If there is an overlap in the time domain of the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR, the UE multiplexes the lower priority HARQ-ACK and the higher priority HARQ-ACK and/or the higher priority SR to one PUCCH. For example, a method of multiplexing a PUCCH carrying a lower priority HARQ-ACK with a PUCCH carrying a higher priority HARQ-ACK and/or a higher priority SR using a method specified in other embodiments of the present invention. The UE sends PUCCH carrying lower priority HARQ-ACK and higher priority HARQ-ACK and/or higher priority SR, and the UE does not send SR and/or CSI carrying lower priority.

And multiplexing and/or preempting the PUCCH carrying the higher-priority HARQ-ACK and the PUCCH carrying the higher-priority SR. For example, multiplexing and/or preemption is provided in accordance with methods defined by other embodiments of the present invention.

If there is an overlap in the time domain of the PUCCH carrying the lower priority SR and/or CSI and/or the lower priority HARQ-ACK and the PUCCH carrying the higher priority HARQ-ACK and/or the higher priority SR, the UE multiplexes the lower priority HARQ-ACK and the higher priority HARQ-ACK and/or the higher priority SR into one PUCCH. For example, a method of multiplexing a PUCCH carrying a lower priority HARQ-ACK with a PUCCH carrying a higher priority HARQ-ACK and/or a higher priority SR using a method specified in other embodiments of the present invention. The UE sends PUCCH carrying lower priority HARQ-ACK and higher priority HARQ-ACK and/or higher priority SR, and the UE does not send SR and/or CSI carrying lower priority.

Alternatively, the time unit multiplexed and/or preempted by a plurality of PUCCHs of the same priority may be a sub-slot of this priority.

Alternatively, PUCCHs in one higher priority slot/subslot that satisfy condition E may constitute the set Q5. For example, condition E may be a PUCCH carrying certain types of PUCCH, or condition E may be a PUCCH that may be multiplexed with a PUCCH carrying a higher priority HARQ-ACK. For example, the PUCCH carrying the higher priority HARQ-ACK in one higher priority slot/sub-slot, the PUCCH carrying the higher priority SR, is grouped into the set Q5. For example, the PUCCH carrying the higher priority HARQ-ACK in one higher priority slot/sub-slot (e.g., this PUCCH is indicated by DCI as may be multiplexed with the PUCCH carrying the lower priority HARQ-ACK), the PUCCH carrying the lower priority HARQ-ACK, and the PUCCH carrying the higher priority SR constitute set Q5. Optionally, the PUCCH carrying HARQ-ACK also needs to satisfy a certain timing relationship, for example, the timing relationship specified in 3GPP TS 38.213. For example, the PUCCH in Q5 may be a PUCCH carrying a lower priority HARQ-ACK and/or a PUCCH carrying a higher priority SR.

Whether the PUCCH carrying the higher priority HARQ-ACK can be multiplexed with the PUCCH carrying the lower priority HARQ-ACK can be configured by higher layer signaling. For example, it may be configured by one and the same parameter whether PUCCH carrying higher priority HARQ-ACK may be multiplexed with PUCCH carrying lower priority HARQ-ACK, if this parameter is configured, it may be multiplexed, and if this parameter is not configured, it may not be multiplexed. For another example, the two parameters may be configured separately, and one parameter may be used to configure whether the PUCCH carrying the HARQ-ACK of the dynamically scheduled PDSCH of higher priority may be multiplexed with the PUCCH carrying the HARQ-ACK of lower priority; another parameter may be used to configure whether the PUCCH carrying HARQ-ACK of higher priority SPS PDSCH may be multiplexed with PUCCH carrying lower priority HARQ-ACK. For another example, the two parameters may be configured separately, and one parameter may be used to configure whether the PUCCH carrying the HARQ-ACK of the dynamically scheduled PDSCH of lower priority may be multiplexed with the PUCCH carrying the HARQ-ACK of higher priority; another parameter may be used to configure whether the PUCCH carrying HARQ-ACK of lower priority SPS PDSCH may be multiplexed with PUCCH carrying higher priority HARQ-ACK. For another example, it may be configured by 4 parameter assignments, parameter a may be used to configure whether PUCCH carrying HARQ-ACK of higher priority dynamically scheduled PDSCH may be multiplexed with PUCCH carrying HARQ-ACK of lower priority dynamically scheduled PDSCH; parameter B may be used to configure whether the PUCCH carrying HARQ-ACK of higher priority SPS PDSCH may be multiplexed with PUCCH carrying HARQ-ACK of lower priority dynamically scheduled PDSCH; parameter C may be used to configure whether the PUCCH carrying HARQ-ACK of higher priority SPS PDSCH may be multiplexed with PUCCH carrying HARQ-ACK of lower priority SPS PDSCH; parameter D may be used to configure whether the PUCCH carrying HARQ-ACK of higher priority dynamically scheduled PDSCH may be multiplexed with PUCCH carrying HARQ-ACK of lower priority SPS PDSCH;

For a dynamically scheduled PDSCH, it may also be indicated in DCI scheduling a higher priority PUCCH whether the PUCCH carrying HARQ-ACK for this PDSCH may be multiplexed with the PUCCH carrying lower priority HARQ-ACK. The lower priority HARQ-ACK may be a dynamically scheduled PDSCH HARQ-ACK and/or an SPS PDSCH HARQ-ACK. Whether the PUCCH carrying HARQ-ACK for this PDSCH can be multiplexed with the PUCCH carrying higher priority HARQ-ACK may also be indicated in DCI scheduling a lower priority PUCCH. The higher priority HARQ-ACK may be that of the SPS PDSCH. The higher priority HARQ-ACK may be a dynamically scheduled PDSCH HARQ-ACK and/or an SPS PDSCH HARQ-ACK.

Whether or not a PUCCH carrying a higher priority SR can be multiplexed with a PUCCH carrying a lower priority HARQ-ACK can be configured by higher layer signaling. For example, it may be configured by one and the same parameter whether PUCCH carrying higher priority SR can be multiplexed with PUCCH carrying lower priority HARQ-ACK, if this parameter is configured, multiplexing may be possible, if this parameter is not configured, multiplexing may not be possible. For another example, it may be configured by two parameters, respectively, one parameter may be used to configure whether PUCCH carrying HARQ-ACK of dynamically scheduled PDSCH of lower priority may be multiplexed with PUCCH carrying SR of higher priority; another parameter may be used to configure whether the PUCCH carrying HARQ-ACK of lower priority SPS PDSCH may be multiplexed with PUCCH carrying higher priority SR.

For a dynamically scheduled PDSCH, it may also be indicated in DCI scheduling a lower priority PUCCH whether the PUCCH carrying HARQ-ACK for this PDSCH may be multiplexed with the PUCCH carrying the higher priority SR.

HARQ-ACKs indicated by a plurality of DCIs may be multiplexed in the same time unit, and whether HARQ-ACK of lower (or higher) priority may be multiplexed with UCI and/or data of higher (or lower) priority may be indicated in the DCI. For example by means of a multiplexing indication field. In one example, whether a higher priority HARQ-ACK may be multiplexed with a lower priority HARQ-ACK may be indicated in DCI scheduling the higher priority HARQ-ACK. In another example, whether a higher priority PUSCH may be multiplexed with a lower priority HARQ-ACK may be indicated in DCI scheduling the PUSCH. In another example, whether a lower priority PUSCH may be scheduled may be indicated in DCI that may multiplex with a higher priority HARQ-ACK. The configuration and/or DCI dynamics may be indicated by protocol provisioning and/or higher layer signaling: the indication of the multiplexing indication field in a plurality of DCIs multiplexed in the same time unit, which indicates that HARQ-ACKs (e.g. HARQ-ACK with the same priority and/or HARQ-ACK with different priorities) are all the same. (e.g., the UE does not expect the multiplexing indication field in multiple DCIs indicating HARQ-ACK multiplexing in the same time unit to be different.) or the UE does not expect to receive the multiplexing indication field in the first DCI indicating HARQ-ACK multiplexing in the same time unit (multiplexing or transmitting) to indicate multiplexing and receive the multiplexing indication field in the second DCI to indicate not multiplexing. For example, the reception time of the first DCI (or the located PDCCH monitoring occasion) may be before or after the reception time of the second DCI (or the located PDCCH monitoring occasion). Alternatively, the reception time (or PDCCH monitoring occasion) of the first DCI and the second DCI is the same. It should be noted that, the following may be indicated by protocol specification and/or higher layer signaling configuration and/or DCI dynamics: the multiplexing indication field in DCI scheduling a higher priority PUSCH indicates multiplexing if 1 (or 0) is indicated, and indicates simultaneous transmission of PUSCH and PUCCH (e.g., lower priority PUCCH) or transmission of only a higher priority PUSCH if 0 (or 1) is indicated. The multiplexing indication field in DCI scheduling a lower priority PUSCH indicates multiplexing if 1 (or 0) is indicated, and indicates simultaneous transmission of PUSCH and PUCCH (e.g., higher priority PUCCH) or transmission of only higher priority PUCCH if 0 (or 1) is indicated. The method can reduce the complexity of UE realization and improve the scheduling flexibility.

If one higher priority PUCCH (e.g., PUCCH carrying HARQ-ACK) overlaps with a plurality of lower priority PUSCHs in the time domain, UCI (e.g., HARQ-ACK) may be multiplexed into one PUSCH by protocol specification and/or higher layer signaling configuration and/or DCI dynamic indication, and the UE transmits or cancels transmission of the PUSCH without multiplexed UCI. Alternatively, if the UE does not multiplex UCI into any PUSCH, the UE transmits the PUCCH and cancels transmission of the PUSCH (e.g., a PUSCH that does not support simultaneous transmission of PUCCH and PUSCH). Or all PUSCHs can be multiplexed with the PUSCHs with lower priority and the multiplexed timing relation is satisfied. The UE selects one PUSCH to multiplex UCI according to predefined rules (e.g., selects the earliest PUSCH for the starting (or ending) symbol (or position) of the PDCCH that schedules the PUSCH-again, for example, selects the earliest PUSCH for the starting (or ending) symbol (or position) of the PUSCH) and/or dynamically instructs to select one PUSCH to multiplex UCI, with the UE transmitting the other PUSCHs. The method defines the behavior of the UE when a plurality of PUSCHs are overlapped with one PUCCH, and improves the reliability of uplink transmission. The method provides various configurations and dynamic indication modes of PUCCH multiplexing with different priorities, can improve the scheduling flexibility, can increase the transmission reliability, and can optimize the overall performance of the network.

If the PUCCH carrying the lower priority HARQ-ACK overlaps with multiple higher priority slots/subslots, the higher priority slot/subslot associated with the PUCCH carrying the lower priority HARQ-ACK needs to be determined. For example, PUCCH carrying lower priority HARQ-ACK may be placed in a set Q5 of one of the plurality of higher priority slots/subslots according to predefined rules. For example, the predefined rules may be in the following manner.

Optionally, if there is an overlap in time domain between the PUCCH carrying the lower priority HARQ-ACK and one or more PUCCH carrying the higher priority HARQ-ACK, the PUCCH carrying the lower priority HARQ-ACK is put into the set Q5 in which the first PUCCH carrying the higher priority HARQ-ACK in the one or more higher priority slots/subslots is located. If the PUCCH carrying the lower priority HARQ-ACK does not overlap in time domain with the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the lower priority HARQ-ACK overlaps in time domain with one or more PUCCH carrying a higher priority SR (the SRs may be positive and/or negative SRs), the PUCCH carrying the lower priority HARQ-ACK is placed in the set Q5 of higher priority slots/subslots in which the first PUCCH carrying the higher priority SR is located.

Alternatively, if the PUCCH carrying the lower priority HARQ-ACK overlaps with multiple higher priority slots/subslots, the higher priority slot/subslot associated with the PUCCH carrying the lower priority HARQ-ACK needs to be determined. For example, the following manner may be adopted. Optionally, if there is an overlap in the time domain of the PUCCH carrying the lower priority HARQ-ACK with the one or more PUCCHs carrying higher priority HARQ-ACKs, if at least one of the one or more PUCCHs carrying higher priority HARQ-ACKs is configured and/or indicates that it can be multiplexed with the PUCCH carrying the lower priority HARQ-ACK, placing the PUCCH carrying the lower priority HARQ-ACK in the set Q5 where the first one of the one or more higher priority slots/sub-slots is configured and/or indicates that it can be multiplexed with the PUCCH carrying the lower priority HARQ-ACK carrying the higher priority HARQ-ACK; if none of the one or more PUCCHs carrying higher priority HARQ-ACKs is configured and/or indicates that it can be multiplexed with a PUCCH carrying a lower priority HARQ-ACK, the UE does not send this PUCCH carrying a lower priority HARQ-ACK. Alternatively, the UE does not put this PUCCH carrying the lower priority HARQ-ACK in any of the one or more higher priority slots/subslots set Q5.

Optionally, if the PUCCH carrying the lower priority HARQ-ACK does not overlap in time domain with the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the lower priority HARQ-ACK overlaps in time domain with the PUCCH carrying the higher priority SR, placing the PUCCH carrying the lower priority HARQ-ACK in the set Q5 of higher priority slots/subslots in which the first PUCCH carrying the higher priority SR is located;

optionally, if the PUCCH carrying the lower priority HARQ-ACK does not overlap with the PUCCH carrying the higher priority HARQ-ACK in time domain and the PUCCH carrying the lower priority HARQ-ACK overlaps with the PUCCH carrying the higher priority SR in time domain, the PUCCH carrying the lower priority HARQ-ACK is put into the set Q5 of higher priority slots/subslots in which the first PUCCH carrying the higher priority SR satisfying the multiplexing condition is located, and if all PUCCHs carrying the higher priority SR do not satisfy the multiplexing condition, the UE does not transmit the PUCCH carrying the lower priority HARQ-ACK. Alternatively, the UE does not put this PUCCH carrying the lower priority HARQ-ACK in any of the one or more higher priority slots/subslots set Q5.

Optionally, if the PUCCH carrying the lower priority HARQ-ACK does not overlap in time domain with the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the lower priority HARQ-ACK overlaps in time domain with the PUCCH carrying the higher priority SR, if the PUCCH carrying the lower priority HARQ-ACK is configured or indicated as being reusable with the higher priority SR, placing the PUCCH carrying the lower priority HARQ-ACK in the set Q5 of higher priority slots/subslots in which the first PUCCH carrying the higher priority SR is located; if the PUCCH carrying the lower priority HARQ-ACK is not configured or indicated as being multiplexed with the higher priority SR (or the PUCCH carrying the lower priority HARQ-ACK is configured or indicated as not being multiplexed with the higher priority SR), the UE does not transmit this PUCCH carrying the lower priority HARQ-ACK. Alternatively, the UE does not put this PUCCH carrying the lower priority HARQ-ACK in any of the one or more higher priority slots/subslots set Q5.

Optionally, if the PUCCH carrying the lower priority HARQ-ACK does not overlap in time domain with the PUCCH carrying the higher priority HARQ-ACK and the PUCCH carrying the lower priority HARQ-ACK overlaps in time domain with the PUCCH carrying the higher priority SR, if the PUCCH carrying the lower priority HARQ-ACK is configured or indicated as being multiplexed with the higher priority SR, placing the PUCCH carrying the lower priority HARQ-ACK in the set Q5 of higher priority slots/subslots in which the first PUCCH carrying the higher priority SR satisfying the multiplexing condition is located; if the PUCCH carrying the lower priority HARQ-ACK is not configured or indicated as being multiplexable with the higher priority SR (or the PUCCH carrying the lower priority HARQ-ACK is configured or indicated as not being multiplexable with the higher priority SR) or if the multiplexing condition is not met by all PUCCHs carrying the higher priority SR, the UE does not transmit this PUCCH carrying the lower priority HARQ-ACK. Alternatively, the UE does not put this PUCCH carrying the lower priority HARQ-ACK in any of the one or more higher priority slots/subslots set Q5.

The method for determining the set of the PUCCH with the lower priority HARQ-ACK is provided, the behavior of the UE is determined, and the reliability of uplink control signaling transmission is improved.

It should be noted that the method for multiplexing and/or preempting the PUCCH carrying the HARQ-ACK with the lower priority and the HARQ-ACK PUCCH carrying the higher priority and/or the PUCCH carrying the higher priority SR provided in the present invention is also applicable to multiplexing and/or preempting the PUCCH carrying the lower priority SR and the HARQ-ACK PUCCH carrying the higher priority SR and/or the PUCCH carrying the higher priority SR.

It should be noted that the method for multiplexing and/or preempting the PUCCH carrying the HARQ-ACK with the lower priority and/or the PUCCH carrying the HARQ-ACK with the higher priority and/or the PUCCH carrying the higher priority SR specified in the present invention is also applicable to multiplexing and/or preempting the PUCCH carrying the lower priority and/or the HARQ-ACK with the higher priority and/or the PUCCH carrying the higher priority SR.

It should be noted that the method for multiplexing and/or preempting the PUCCH carrying the HARQ-ACK with the lower priority and the HARQ-ACK PUCCH carrying the higher priority and/or the PUCCH carrying the higher priority SR provided in the present invention is also applicable to multiplexing and/or preempting the PUCCH carrying the lower priority SR and/or the PUCCH carrying the lower priority HARQ-ACK with the higher priority PUCCH and/or the PUCCH carrying the higher priority SR.

It should be noted that, in the set of time units for placing the PUCCH carrying the HARQ-ACK of the lower priority into the PUCCH of the higher priority, the limitation condition to be satisfied may also be added. For example, the limitation condition may be that the multiplexed PUCCH does not exceed the boundary of this slot. For example, the qualifying condition may be that a PUCCH carrying a lower priority HARQ-ACK satisfies a multiplexing condition with a PUCCH carrying a higher priority HARQ-ACK and/or SR. It should be noted that, in the present invention, it is required that all multiplexing methods satisfy a multiplexing condition, for example, whether a timing relationship is configured or indicated as being capable of multiplexing.

In some embodiments, multiplexing conditions that one PUCCH should satisfy may be multiplexed by protocol specification and/or higher layer signaling configuration and/or DCI dynamics indicating that multiple PUCCHs (e.g., PUCCH carrying higher priority HARQ-ACK (e.g., HARQ-ACK for SPS PDSCH and/or HARQ-ACK for DCI scheduled PDSCH) overlaps in time domain with one or more PUCCHs (e.g., PUCCH carrying lower priority HARQ-ACK). The multiplexing condition may be at least one of:

conditions 1 to 1: the number of bits of the multiplexed UCI does not exceed a predefined number.

Conditions 1 to 2: the maximum code rate of the UCI after multiplexing does not exceed a predefined code rate.

Conditions 1 to 3: the multiplexed PUCCH does not overlap with a downlink symbol and/or a flexible (flexible) symbol in a time domain. For example, the downlink symbol and/or the flexible symbol may be determined by a higher layer signaling configuration and/or SFI (Slot Format Indicator) indication and/or SSB (Synchronization Signal Block) and/or CORESET 0.

For example, the UCI may be a total UCI and/or a lower priority UCI and/or a higher priority UCI.

For example, the predefined number and/or the predefined code rate may be configured by higher layer signaling, e.g., HARQ-ACK carrying SPS PDSCH and HARQ-ACK carrying DCI scheduled PDSCH may be configured separately or uniformly.

If the multiplexing condition is satisfied, the UE may multiplex a plurality of PUCCHs to one PUCCH; if the multiplexing condition is not satisfied, the UE may transmit a higher priority PUCCH without transmitting a lower priority PUCCH.

The method defines the PUCCH multiplexing condition, and can avoid the condition that the multiplexed PUCCH cannot be sent, for example, the multiplexed PUCCH is overlapped with downlink symbols and/or flexible symbols on the time domain, the bit number of the PUCCH exceeds the predefined number, or the maximum code rate of the multiplexed PUCCH exceeds the predefined code rate, and the like, thereby improving the reliability of the transmission of the PUCCH with higher priority, reducing the time delay of a user plane, and improving the system performance.

In some embodiments, the multiplexing condition that PUCCH carrying higher priority UCI (e.g., HARQ-ACK) should satisfy with lower priority PUSCH may be dynamically indicated by protocol specification and/or higher layer signaling configuration and/or DCI. The multiplexing condition may be at least one of:

condition 2-1: the lower priority PUSCH does not overlap with the higher priority SR in the time domain.

Conditions 2 to 2: the lower priority PUSCH does not overlap in the time domain with the higher priority PUSCH of the same serving cell.

Conditions 2 to 3: the lower priority PUSCH is a schedule-free PUSCH.

Conditions 2 to 4: the lower priority PUSCH is a DCI scheduled PUSCH.

Conditions 2 to 5: the lower priority PUSCH does not overlap with the downlink symbols and/or flexible symbols in the time domain. For example, the downlink symbols and/or flexible symbols may be determined by a higher layer signaling configuration and/or SFI indication and/or SSB and/or CORESET 0.

Conditions 2 to 6: the schedule-free PUSCH is configured to support UCI multiplexing with different priorities (higher priority).

If the multiplexing condition is satisfied, the UE may multiplex UCI carrying higher priority to PUSCH carrying lower priority; if the multiplexing condition is not satisfied, the UE may transmit a higher priority PUCCH without transmitting a lower priority PUSCH.

It may also be specified by the protocol that the UE does not expect to multiplex a higher priority UCI (e.g., HARQ-ACK) to a lower priority PUSCH, wherein the transmission of the lower priority PUSCH is cancelled, and/or the lower priority PUSCH overlaps in time domain with another higher priority PUSCH of the same serving cell, and/or the lower priority PUSCH overlaps in time domain with another higher priority PUCCH (e.g., a PUCCH carrying an SR).

It may also be agreed that if a lower priority PUSCH carrying a higher priority UCI (e.g., HARQ-ACK) overlaps in the time domain with a PUCCH carrying a higher priority SR, the UE transmits the lower priority PUSCH carrying the higher priority UCI (e.g., HARQ-ACK) without transmitting the PUCCH carrying the higher priority SR.

The method defines the PUCCH multiplexing condition, and can avoid the condition that the multiplexed PUCCH cannot be sent, for example, the condition that the PUSCH with lower priority is overlapped with the downlink symbol and/or the flexible symbol on the time domain, and the like, thereby improving the reliability of the transmission of the PUCCH with higher priority, reducing the time delay of a user plane and improving the system performance.

In the method for determining the PUCCH included in the set (for example, set Q) defined in the present invention, the timing relationship that the PUCCH needs to satisfy may be that the time distance between the end position (or the end symbol) of the PDSCH associated with the PUCCH in the set Q and the start position (or the start symbol) of the slot (or the sub-slot) corresponding to the set Q is not less than T1; the time distance between the end position (or end symbol) of the PDCCH associated with the PUCCH in the set Q and the start position (or start symbol) of the slot (or sub-slot) corresponding to the set Q is not less than T2; wherein T1, T2 can be determined by the timing relationship that PUCCH multiplexing needs to satisfy as specified by 3GPP TS 38.213. According to the method, the unified timing relation is defined for the PUCCHs in the set, the UE can process the multiplexing time of the PUCCHs in the set according to the timing relation, and the complexity of the UE can be reduced.

It should be noted that, in the embodiment of the present disclosure, the method for multiplexing and/or preempting multiple UCIs with different priorities may also be applied to multiplexing and/or preempting a UCI/PUCCH for Unicast (Unicast) and a UCI/PUCCH for multicast (groupcast or multicast)/broadcast. In this case, various methods of multiplexing of the unicast UCI/PUCCH and the multicast/broadcast UCI/PUCCH may be obtained by replacing "a plurality of UCI/PUCCHs of different priorities" with "unicast UCI/PUCCH and multicast/broadcast UCI/PUCCH" in the embodiment of the present disclosure or by replacing "a plurality of UCI/PUCCHs of different priorities" with "unicast UCI/PUCCH and multicast/broadcast UCI/PUCCH of the same priority" in the embodiment of the present disclosure. For example, "higher priority UCI/PUCCH" may be replaced with "unicast UCI/PUCCH"; the "lower priority UCI/PUCCH" may be replaced with "multicast/broadcast UCI/PUCCH". A detailed description is omitted herein for the sake of brevity.

In some embodiments, the multicast/broadcast PUCCH time units may not be the same as the unicast PUCCH time units, and the PUCCH in the PUCCH set may be multiplexed and/or preempted according to methods specified in other embodiments of the present invention by placing the PUCCH carrying the HARQ-CK of the multicast/broadcast PDSCH into the PUCCH set (e.g., the set defined in other embodiments of the present invention) of the unicast PUCCH time units via protocol specification and/or higher layer signaling configuration and/or DCI dynamic indication. Alternatively, the time units multiplexed with the multicast/broadcast PUCCH time units for the PUCCH may be specified by a protocol and/or higher layer signaling configuration and/or DCI dynamic indication. The multicast/broadcast PUCCH time units may be dynamically indicated to be not smaller than unicast PUCCH time units by protocol specification and/or higher layer signaling configuration and/or DCI. Alternatively, the time units multiplexed for the PUCCH in the unicast PUCCH time units and the smaller (or larger) of the multicast/broadcast PUCCH time units may be indicated dynamically by protocol specification and/or higher layer signaling configuration and/or DCI. The method defines the multiplexing time unit of the unicast PUCCH and the multicast/broadcast PUCCH, and then can multiplex the unicast PUCCH and the multicast/broadcast PUCCH based on the existing mode, the complexity of UE realization is low, and the reliability of UCI transmission can be improved.

In some embodiments, if one PUCCH configuration parameter of the UE (e.g., a parameter PUCCH-Config in 3GPP, which may be a lower priority PUCCH-Config) is configured with a sub-slot length parameter (e.g., a parameter subslottlengthpucch in 3 GPP), if multiple CSI PUCCH resource list parameters are configured in the PUCCH configuration parameter (e.g., a parameter multi-CSI-PUCCH-ResourceList in 3 GPP), the PUCCH resources in the multiple CSI PUCCH resource list parameters may be configured in the same sub-slot (e.g., within the same subslottlengthpucch symbol) by protocol specification and/or higher layer signaling configuration and/or DCI dynamics indication. Alternatively, PUCCH resources in the plurality of CSI PUCCH resource list parameters may be dynamically indicated to be configured on the same time domain resource (e.g., OFDM symbol) by protocol specification and/or higher layer signaling configuration and/or DCI. Alternatively, the UE may be dynamically instructed, by protocol specification and/or higher layer signaling configuration and/or DCI, not to expect PUCCH resources in the plurality of CSI PUCCH resource list parameters to be configured on different time domain resources (e.g., OFDM symbols). Alternatively, the UE may be dynamically instructed by protocol specification and/or higher layer signaling configuration and/or DCI not to expect PUCCH resources in the multiple CSI PUCCH resource list parameters to be configured in different subslots. If the PUCCH resources in the CSI PUCCH resource list parameters are configured in different subslots, if the PUCCH resource carrying the HARQ-ACK of the SPS PDSCH overlaps with the first PUCCH resource in the CSI PUCCH resource list parameters in the time domain, the HARQ-ACK and the CSI may be multiplexed to one CSI PUCCH resource, which may be the second PUCCH resource in the CSI PUCCH resource list parameters, and if the second PUCCH resource in the CSI PUCCH resource list parameters overlaps with another PUCCH resource carrying the HARQ-ACK of the SPS PDSCH in the time domain, the two HARQ-ACKs and the CSI may need to be multiplexed to one PUCCH resource, which may increase complexity of UE implementation and increase delay of the HARQ-ACK. The method can avoid multiplexing the HARQ-ACK of the SPS PDSCH of different sub-time slots into one PUCCH, reduce the time delay of the HARQ-ACK of the SPS PDSCH and improve the reliability of the HARQ-ACK transmission. And the complexity of UE implementation is reduced.

In some embodiments, the UE may not expect to multiplex the SR and/or the included SPS-only HARQ-ACK of the PDSCH in one sub-slot (the slot does not include the dynamically scheduled HARQ-ACK of the PDSCH) into another sub-slot, either through protocol provisions and/or higher layer signaling configurations and/or DCI dynamic indications. For example, the UE may not expect to multiplex the SR in one sub-slot and/or the HARQ-ACK containing the SPS-only PDSCH into another sub-slot, or the UE may not expect to move the SR in one sub-slot and/or the HARQ-ACK containing the SPS-only PDSCH into another sub-slot after multiplexing, if one PUCCH configuration (e.g., the first PUCCH configuration, a lower priority PUCCH configuration) of the UE is configured with a sub-slot length (e.g., 3GPP parameter subslottlengthforth PUCCH), and/or by a protocol specification and/or DCI dynamic indication. It should be noted that, in the present embodiment, the SR and the HARQ-ACK may have the same priority.

The method can avoid multiplexing HARQ-ACK and/or SR containing only SPS PDSCH in different sub-time slots into one PUCCH, can reduce the time delay of the HARQ-ACK and/or SR of the SPS PDSCH, and improves the reliability of HARQ-ACK transmission. And the UE implementation complexity is reduced.

In some embodiments, two or more PUCCH multiplexed PUCCHs (e.g., PUCCH resources carrying multiplexed UCIs) may overlap in the time domain with another PUCCH (or PUSCH) and the other PUCCH (or PUSCH) may overlap in the time domain with any one of the pre-multiplexed PUCCHs. At this time, the UE also needs to multiplex the overlapped PUCCH and/or PUSCH. To reduce UE implementation complexity, the UE may not expect a multiplexed PUCCH (e.g., PUCCH resources carrying multiple UCIs after multiplexing) to overlap in the time domain with another PUCCH or PUSCH that does not overlap in the time domain with any one PUCCH before multiplexing, when two or more PUCCHs overlap in the time domain (or when two or more PUCCHs are multiplexed), through protocol specification and/or higher layer signaling configuration and/or DCI dynamic indication. Alternatively, when two or more PUCCHs are overlapped in the time domain (or when two or more PUCCHs are multiplexed), the UE may not expect that the time domain resources (e.g., OFDM symbols) occupied by the multiplexed PUCCH (e.g., PUCCH resources carrying multiple multiplexed UCIs) are different from the time domain resources occupied by any one PUCCH before multiplexing, through protocol specification and/or higher layer signaling configuration and/or DCI dynamic indication.

In some embodiments, it may be specified by a protocol and/or higher layer signaling configuration and/or DCI dynamic indication that if one PUCCH carrying HARQ-ACK of dynamically scheduled PDSCH overlaps with PUCCH carrying SR and/or CSI in time domain, the multiplexed PUCCH occupies the same time domain resources (e.g., OFDM symbols) as the PUCCH carrying HARQ-ACK of dynamically scheduled PDSCH before multiplexing. Alternatively, the UE does not expect that the PUCCH after multiplexing and the PUCCH carrying HARQ-ACK of the dynamically scheduled PDSCH occupy different time domain resources (e.g., OFDM symbols).

In some embodiments, it may be specified by a protocol and/or higher layer signaling configuration and/or DCI dynamic indication that if one PUCCH carrying HARQ-ACK overlaps with a PUCCH carrying SR in time domain, the multiplexed PUCCH occupies the same time domain resources (e.g., OFDM symbols) as the PUCCH carrying HARQ-ACK before multiplexing. Alternatively, the UE does not expect that the PUCCH after multiplexing and the PUCCH carrying HARQ-ACK before multiplexing occupy different time domain resources (e.g., OFDM symbols).

In some embodiments, the time domain resources (e.g., OFDM symbols) occupied by PUCCH in the same slot where the UE does not expect to receive 2 DCI schedules may not be the same, which may be dictated by protocol specification and/or higher layer signaling configuration and/or DCI dynamics.

In some embodiments, the UE may not expect the time domain resources (e.g., OFDM symbols) occupied by the two PUCCHs to be different if the UE determines that a first PUCCH resource in a slot contains HARQ-ACK for SPS-only PDSCH (does not contain HARQ-ACK for dynamically scheduled PDSCH) or if the UE receives a first DCI format indicating a first PUCCH resource in a slot containing HARQ-ACK, and then the UE receives a second DCI format (the time of receiving the second DCI format is later than the time of receiving the first DCI format) indicating a second PUCCH resource in the slot containing HARQ-ACK, via protocol specification and/or higher layer signaling configuration and/or DCI dynamic indication.

In some embodiments, the UE may not expect the time domain resources (e.g., OFDM symbols) occupied by the two PUCCHs to be different if the UE determines a first PUCCH resource in a slot that contains HARQ-ACK for SPS PDSCH only and then receives a DCI format indicating a second PUCCH resource in the slot that contains HARQ-ACK, either by protocol specification and/or higher layer signaling configuration and/or DCI dynamic indication.

In some embodiments, the UE may not expect the starting position (or starting symbol) of the second PUCCH to be earlier than the starting position (or starting symbol) of the first PUCCH if the UE determines that the first PUCCH resource containing HARQ-ACK of only SPS PDSCH in one slot or if the UE receives the first DCI format indicates that the first PUCCH resource containing HARQ-ACK in one slot, and then the UE receives the second DCI format (the time of receiving the second DCI format is later than the time of receiving the first DCI format) indicates that the second PUCCH resource containing HARQ-ACK in the slot.

It should be noted that, in the embodiment of the present disclosure, the PUCCH resource may be a resource used for PUCCH transmission.

It should be noted that the method in the embodiment of the present disclosure may be applicable to all scenarios, and may also be applicable to a specific scenario (or configuration), for example, the specific scenario may be that the UE is configured with a sub-slot length and/or the UE is configured with two levels of priority. Certain scenarios may be configured with sub-slot lengths for lower priority and/or higher priority PUCCH configurations (e.g., first PUCCH-Config and/or second PUCCH-Config in 3GPP parameters). A particular scenario may be a higher priority PUCCH and/or a lower priority PUCCH.

It should be noted that in the embodiment of the present disclosure, "the time domain resources (e.g., OFDM symbols) occupied by the two PUCCHs and/or PUSCHs are not the same" may be replaced by "the starting (or ending) symbols of the two PUCCHs and/or PUSCHs are not the same".

The method regulates the time domain resources occupied by the PUCCH when the PUCCH is multiplexed, and can reduce the realization complexity of the UE and the network. When PUCCH or PUSCH are configured with two levels of priority, high priority PUCCH multiplexing does not affect transmission of low priority PUCCH/PUSCH.

It should be noted that, in the embodiment of the present disclosure, the behavior (or operation) unexpected by the UE may be considered as an erroneous case/configuration/scheduling if it occurs.

In some embodiments, the multiplexed UCI may be carried with higher priority PUCCH resources if the PUCCH carrying HARQ-ACK for higher priority SPS PDSCH overlaps in time domain with the PUCCH carrying HARQ-ACK for lower priority DCI scheduled PDSCH, which may be specified by protocol and/or higher layer signaling configuration and/or DCI dynamics. For example, the PUCCH resource may be a PUCCH resource configured in a 3GPP parameter PUCCH-ResourceSet. PUCCH resources carrying multiplexed UCI may be indicated by a PRI (PUCCH Resource Indicator) field in DCI (e.g., last DCI) scheduling lower priority HARQ-ACK.

The method specifies the resource determination mode of the PUCCH, can improve the scheduling flexibility and improve the overall performance of the network.

In some embodiments, whether a schedule-free PUSCH (e.g., a Configured granted Grant PUSCH, CG-PUSCH) may be multiplexed with UCI may be Configured through higher layer signaling.

The UCI may be at least one of:

-a specific UCI type;

-all UCI types;

-UCI with same priority as the schedule-exempt PUSCH;

-UCI with different priority than the schedule-exempt PUSCH;

-lower priority UCI;

-higher priority UCI;

the schedule-free PUSCH may be at least one of:

-all schedule-free PUSCH configurations;

-lower priority schedule-free PUSCH;

-higher priority schedule-free PUSCH;

-a certain scheduler free PUSCH configuration;

if the UE is not configured to support the same priority of the schedulable PUSCH and UCI multiplexing, when the schedulable PUSCH and the PUCCH carrying the UCI are overlapped in the time domain, the UE transmits the PUCCH without transmitting the schedulable PUSCH, or the UE does not transmit the PUCCH but transmits the schedulable PUSCH.

If the UE is not configured to support scheduling-free PUSCH and UCI multiplexing of different priorities, when the scheduling-free PUSCH and the PUCCH carrying the UCI overlap in a time domain, the UE transmits a higher priority PUCCH or scheduling-free PUSCH, and does not transmit a lower priority PUCCH or scheduling-free PUSCH.

The method can lead the base station to flexibly configure whether the scheduling-free PUSCH and the UCI are multiplexed or not, can increase the scheduling flexibility and improve the network performance.

In some embodiments, the UE may multiplex higher priority UCI and lower priority UCI to higher priority PUSCH if PUCCH carrying higher priority UCI (e.g., HARQ-ACK) and lower priority UCI (e.g., HARQ-ACK) overlap both lower priority PUSCH and higher priority PUSCH in time domain, which may be specified by protocol and/or higher layer signaling configuration and/or DCI dynamic indication.

The method can ensure the reliability of UCI transmission with higher priority.

In some embodiments, the UE may multiplex the UCI carrying higher priority to the PUSCH carrying lower priority if the PUCCH carrying higher priority UCI (e.g., HARQ-ACK) overlaps both the PUCCH carrying lower priority UCI (e.g., HARQ-ACK) and the PUSCH carrying lower priority in the time domain, wherein the PUCCH carrying lower priority UCI (e.g., HARQ-ACK) and the PUSCH carrying lower priority do not overlap in the time domain, which may be specified by a protocol and/or higher layer signaling configuration and/or DCI dynamics indication. It may also be specified by the protocol that the UE does not expect this to happen.

If the PUCCH carrying the lower priority UCI (e.g., HARQ-ACK) overlaps both the PUCCH carrying the higher priority UCI (e.g., HARQ-ACK) and the higher priority PUSCH in the time domain, wherein the PUCCH carrying the higher priority UCI (e.g., HARQ-ACK) and the higher priority PUSCH do not overlap in the time domain, the UE multiplexes the UCI carrying the lower priority to the higher priority PUSCH or PUCCH; alternatively, the UE multiplexes UCI carrying lower priority to PUSCH or PUCCH carrying higher priority with an earlier (or later) start time (or end time). It may also be specified by the protocol that the UE does not expect this to happen.

The method defines the behavior of the UE and can improve the reliability of uplink transmission.

In some embodiments, multiplexing and/or preempting PUCCH and/or PUSCH of different priorities may be according to the following steps:

the method comprises the following steps: and multiplexing and/or preempting PUCCH and/or PUSCH with the same priority. For example, the multiplexing and/or preemption of PUCCH and/or PUSCH of the same priority is handled according to the rules of 3GPP TS 38.213. In the first step, PUCCH and/or PUSCH with lower priority may be multiplexed and/or preempted first. Multiplexing and/or preempting the PUCCH and/or PUSCH with higher priority; alternatively, the higher priority PUCCH and/or PUSCH may be multiplexed and/or preempted first. And then multiplexing and/or preempting the PUCCH and/or PUSCH with low and high priority.

Step two: and multiplexing and/or preempting PUCCHs and/or PUSCHs with different priorities.

And after the step is finished, the uplink channel with lower priority can be one or more PUCCHs and/or one or more PUSCHs, wherein the PUCCHs are not overlapped in the time domain, and the PUCCHs and the PUSCHs are not overlapped in the time domain.

After the step is finished, the uplink channel with higher priority may be one or more PUCCHs and/or one or more PUSCHs, where the PUCCHs are not overlapped in the time domain, and the PUCCH and the PUSCH are not overlapped in the time domain.

Step two may be implemented according to at least one of the following ways.

The method I comprises the following steps:

optionally, PUCCHs of different priorities are multiplexed and/or preempted. For example, processed in accordance with embodiments of the present disclosure. For example, PUCCH carrying HARQ-ACK containing lower priority is multiplexed and/or preempted with higher priority PUCCH. If there is overlap in the time domain between the PUCCH carrying SR and/or CSI of lower priority and the PUCCH carrying HARQ-ACK and/or SR containing higher priority, the UE does not send (drop) the PUCCH carrying SR and/or CSI of lower priority.

Optionally, PUCCH carrying SR containing higher priority HARQ-ACK and/or higher priority is multiplexed and/or preempted with PUSCH. For example, PUCCH carrying HARQ-ACK and/or SR containing higher priority may be first multiplexed and/or preempted with higher priority PUSCH. The PUCCH carrying HARQ-ACK and/or SR containing higher priority is then multiplexed and/or preempted with PUSCH of lower priority. For another example, PUCCH carrying HARQ-ACK and/or SR containing higher priority may be first multiplexed and/or preempted with higher priority and/or lower priority PUSCH. For another example, PUCCH carrying HARQ-ACK and/or SR containing higher priority may be multiplexed and/or preempted with PUSCH of lower priority. And then multiplexing and/or preempting the PUCCH carrying the HARQ-ACK and/or SR containing the higher priority with the PUSCH with the higher priority.

Optionally, a lower priority PUCCH is multiplexed and/or preempted with a higher priority PUSCH.

The second method comprises the following steps:

optionally, a lower priority PUCCH is multiplexed and/or preempted with a higher priority PUSCH. Optionally, higher priority PUCCHs are multiplexed and/or preempted with lower priority PUSCHs. Or, optionally, a higher priority PUCCH is multiplexed and/or preempted with a lower priority PUSCH. Optionally, a lower priority PUCCH is multiplexed and/or preempted with a higher priority PUSCH.

Optionally, PUCCHs of different priorities are multiplexed and/or preempted.

Optionally, PUCCH carrying SR containing higher priority HARQ-ACK and/or higher priority is multiplexed and/or preempted with PUSCH. For example, PUCCH carrying HARQ-ACK and/or SR containing higher priority may be first multiplexed and/or preempted with higher priority PUSCH. The PUCCH carrying HARQ-ACK and/or SR containing higher priority is then multiplexed and/or preempted with PUSCH of lower priority. For another example, PUCCH carrying HARQ-ACK and/or SR containing higher priority may be first multiplexed and/or preempted with higher priority and/or lower priority PUSCH.

In the above manner, if there is an overlap between the PUSCH of lower priority and the PUSCH of higher priority in the same serving cell in the time domain, the PUSCH of lower priority may be dropped before multiplexing.

The method defines a PUCCH and PUSCH multiplexing method, defines the behavior of the UE, and can improve the reliability of uplink transmission.

The third method comprises the following steps:

the PUCCH and/or PUSCH may be multiplexed and/or prioritized according to one or more of the following steps S121, S122, S123.

Step S121: for each serving cell, if a lower priority PUSCH of a serving cell overlaps with a higher priority PUSCH of the serving cell in the time domain, the UE does not transmit (cancels transmission of) the lower priority PUSCH.

Step S122: if more than one PUCCH overlaps in the time domain, the more than one PUCCH is multiplexed and/or prioritized. For example, more than one PUCCH may be multiplexed and/or prioritized according to any suitable method (e.g., predefined rules). For example, the predefined rules may be rules defined in other examples of the disclosure and/or rules defined in 3 GPP.

Step S123: PUCCH and/or PUSCH multiplexing and/or prioritization. For example, PUCCH and/or PUSCH multiplexing and/or prioritization may be in accordance with any suitable method (e.g., predefined rules). For example, the predefined rules may be rules defined in other examples of the disclosure and/or rules defined in 3 GPP.

In the third embodiment, step S121, step S122, and step S123 may be performed in any order, or step S121, step S122, and step S123 may be performed simultaneously.

In some embodiments, PUCCH and/or PUSCH may be multiplexed and/or prioritized in step S123 in mode three according to the following sub-steps.

The first substep: lower priority PUCCH and/or PUSCH (e.g., lower priority and/or higher priority PUSCH) are multiplexed and/or prioritized. For example, lower priority PUCCHs and/or PUSCHs (e.g., lower priority and/or higher priority PUSCHs) may be multiplexed and/or prioritized according to any suitable method (e.g., predefined rules). For example, the predefined rules may be rules defined in other examples of the disclosure and/or rules defined in 3 GPP.

And a second substep: multiplexing and/or prioritizing higher priority PUCCHs and/or PUSCHs (e.g., lower priority and/or higher priority PUSCHs). For example, higher priority PUCCHs and/or PUSCHs (e.g., lower priority and/or higher priority PUSCHs) may be multiplexed and/or prioritized according to any suitable method (e.g., predefined rules). For example, the predefined rules may be rules defined in other examples of the disclosure and/or rules defined in 3 GPP.

It should be noted that the order of sub-step one and sub-step two may be exchanged, or the sub-step one and sub-step two may be performed simultaneously (e.g., without prioritizing the PUCCH).

The method can avoid the UCI from being canceled for transmission after being multiplexed to the PUSCH, and can improve the reliability of the UCI transmission.

The method is as follows:

the UE does not expect to multiplex a PUCCH carrying HARQ-ACK (e.g., higher priority HARQ-ACK) to a lower priority PUSCH on a serving cell that overlaps in time domain with another higher priority PUSCH of the serving cell. The method is simple to implement, and can reduce the implementation complexity of the UE and the base station.

The fifth mode is as follows:

if one PUCCH and a plurality of PUSCHs have overlap on the time domain, wherein the priorities of the plurality of PUSCHs are different from the priority of the PUCCH, the UE selects the PUSCHs according to a predefined priority order. For example, the predefined priority order may comprise at least one of:

- { PUSCH without UCI, PUSCH with UCI } (in order of priority from high to low). If the number of the UCI types on the PUSCH is more, the UE may discard part of the UCI, and the method can avoid discarding the UCI.

- { DG (dynamic grant) PUSCH without UCI, DG PUSCH with UCI, CG PUSCH without UCI, CG PUSCH with UCI } (in order of priority from high to low). The DG PUSCH may improve reliability of UCI transmission compared to the CG PUSCH. The method has compromise between discarding the UCI and improving the reliability of UCI transmission.

The UCI can be avoided to be discarded as far as possible on the premise of ensuring the transmission reliability of the UCI.

- { PUSCH containing no CSI, PUSCH containing CSI } (in order of priority from high to low). If the types of the UCI on the PUSCH are more, the UE may discard part of the UCI, and the method can avoid discarding the UCI.

- { PUSCH containing CSI, PUSCH not containing CSI } (in order of priority from high to low).

- { DG PUSCH containing no CSI, PUSCH containing CSI (e.g., DG PUSCH), CG PUSCH (e.g., CG PUSCH containing no CSI) } (in order of priority from high to low). If the number of the UCI types on the PUSCH is more, the UE may discard part of the UCI, and the method can avoid discarding the UCI.

- { HP PUSCH containing no HP HARQ-ACK, HP PUSCH containing HP HARQ-ACK } (in order of high to low priority). If the number of the UCI types on the PUSCH is more, the UE may discard part of the UCI, and the method can avoid discarding the UCI. LP HARQ-ACK may be missed, and the method can improve the reliability of HP HARQ-ACK.

- { HP PUSCH containing HP HARQ-ACK, HP PUSCH not containing HP HARQ-ACK } (in order of priority from high to low).

Fig. 10 shows a block diagram of a transceiving node of a first type 1000 according to an embodiment of the present invention.

Referring to fig. 10, a first type transceiving node 1000 may include a transceiver 1001 and a controller 1002.

The transceiver 1001 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 1002 may be an application specific integrated circuit or at least one processor. The controller 1002 may be configured to control the overall operation of the first type of transceiving node, including controlling the transceiver 1001 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 in time units.

In some implementations, the controller 1002 may be configured to perform one or more of the operations of the methods of the various embodiments described above.

In the following description, the base station is taken as an example (but not limited to) to illustrate the first type of transceiving node, and the UE is taken as an example (but not limited to) to illustrate the second type of transceiving node. 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.

Fig. 11 shows a flow diagram of a method 1100 performed by a base station according to one embodiment of the invention.

Referring to fig. 11, in step S1110, a base station transmits downlink data and/or downlink control signaling.

In step S1120, the base station receives second type data and/or second type control signaling from the UE in a time unit.

For example, the method 1100 may include one or more of the operations described in various embodiments of the present disclosure as being performed by a base station.

In some embodiments, the uplink channel may comprise PUCCH or PUSCH.

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 above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

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;

transmitting uplink control information UCI to the first type transceiving node,

if a plurality of Physical Uplink Control Channels (PUCCHs) carrying UCIs with different priorities are overlapped on a time domain, multiplexing and/or preempting the PUCCHs.

2. The method of claim 1, wherein the UCI comprises one or more of: automatic repeat request-acknowledgement HARQ-ACK, scheduling request SR, channel state information CSI.

3. The method of claim 2, further comprising:

if there is an overlap in the time domain of the PUCCH carrying the lower priority HARQ-ACK and the PUCCH carrying the higher priority SR, multiplexing the plurality of PUCCHs according to one of:

the number of bits of the lower priority HARQ-ACK and/or the format of the PUCCH carrying the lower priority HARQ-ACK and/or the number of symbols of the PUCCH;

The bit number of PUCCH format carrying higher priority SR and/or lower priority HARQ-ACK and/or the symbol number of PUCCH carrying lower priority HARQ-ACK;

a start symbol and/or an end symbol of a PUCCH carrying a higher priority SR and/or a start symbol and/or an end symbol of a PUCCH carrying a lower priority HARQ-ACK;

a starting symbol and/or an ending symbol of a PUCCH carrying a higher priority SR and/or a starting symbol and/or an ending symbol of a PUCCH carrying a lower priority HARQ-ACK and/or a PUCCH format carrying a higher priority SR and/or a number of bits of a lower priority HARQ-ACK and/or a format of a PUCCH carrying a lower priority HARQ-ACK and/or a number of symbols of the PUCCH.

4. The method of claim 2, wherein if the PUCCH carrying the lower priority HARQ-ACK overlaps in time domain with the PUCCH carrying the higher priority SR, and the PUCCH carrying the lower priority HARQ-ACK has associated DCI or DCI format or PDCCH, determining whether multiplexing of the plurality of PUCCHs is supported according to an indication in the DCI or DCI format or PDCCH;

otherwise, if the PUCCH carrying the lower priority HARQ-ACK does not have associated DCI or DCI format or PDCCH, determining whether multiplexing the plurality of PUCCHs is supported according to higher layer signaling parameters.

5. The method of claim 2, wherein the time units multiplexed and/or preempted on the plurality of PUCCHs of different priorities are slots, higher priority PUCCH time units, or lower priority PUCCH time units.

6. The method of claim 5, wherein the length of the time unit is determined according to one of:

maximum of lower priority PUCCH time units and higher priority PUCCH time units;

a minimum of lower priority PUCCH time units and higher priority PUCCH time units;

a least common multiple of lower priority PUCCH time units and higher priority PUCCH time units.

7. The method of claim 5, further comprising: the PUCCHs satisfying the first specific condition in one slot are grouped into a set Q1.

8. The method of claim 7, further comprising ordering the PUCCHs in the set Q1 according to at least one of the following rules:

sorting the PUCCH time units according to the time sequence of the PUCCH time units;

sequencing PUCCHs in one PUCCH time unit according to the sequencing priority of the loaded UCI;

if one PUCCH overlaps with a plurality of PUCCH time units, ordering the PUCCH through a predefined rule;

For a PUCCH carrying a plurality of UCI types, sorting the PUCCH according to a first predefined rule according to the priority with the highest sorting priority in the UCI carried by the PUCCH;

sequencing PUCCHs carrying the same UCI type according to a second predefined rule; and

the PUCCH carrying negative SR that does not overlap with the PUCCH carrying HARQ-ACK and/or CSI in the time domain is deleted from the set Q1.

9. The method of claim 7, further comprising ordering the PUCCHs in the set Q1 according to at least one of the following rules:

the PUCCH contained in the higher priority PUCCH time unit precedes the PUCCH contained in the lower priority time unit;

in the same PUCCH time unit, a PUCCH bearing the HARQ-ACK is positioned in front of a PUCCH bearing the SR;

in the same PUCCH time unit, a PUCCH bearing higher priority HARQ-ACK is positioned in front of a PUCCH bearing lower priority HARQ-ACK;

if the PUCCH carrying the lower priority HARQ-ACK is overlapped with one or more PUCCHs carrying UCI in a time domain, determining the ordering of the PUCCH carrying the lower priority HARQ-ACK according to the type of UCI carried by the one or more PUCCHs and the priority of the UCI;

and deleting the PUCCH carrying the negative SR which does not overlap with the PUCCH carrying the HARQ-ACK and/or CSI on the time domain from the set.

10. The method of claim 2, wherein multiplexing and/or preempting the plurality of PUCCHs comprises multiplexing and/or preempting PUCCHs of different priorities in an order of one of:

multiplexing and/or preempting the PUCCH with higher priority, and multiplexing and/or preempting the PUCCH with lower priority and the PUCCH with higher priority; or

Multiplexing and/or preempting PUCCHs with higher priority, multiplexing and/or preempting PUCCHs with lower priority and PUCCHs carrying HARQ-ACKs containing higher priority, and multiplexing and/or preempting PUCCHs with lower priority and PUCCHs carrying SRs with higher priority; or

Multiplexing and/or preempting a PUCCH carrying a lower priority and a PUCCH carrying a higher priority HARQ-ACK, multiplexing and/or preempting a PUCCH carrying a higher priority HARQ-ACK and a PUCCH carrying a higher priority SR, and multiplexing and/or preempting a PUCCH carrying a lower priority and a PUCCH carrying a higher priority SR.

11. The method of claim 5, wherein the time unit is a higher priority PUCCH time unit, and,

further comprising:

grouping the PUCCHs meeting a second specific condition in one higher priority PUCCH time unit into a set Q2; and

if the PUCCH carrying the lower priority HARQ-ACK is overlapped with one or more higher priority PUCCH time units, the PUCCH carrying the lower priority HARQ-ACK is placed in a set Q2 in which one of the one or more higher priority PUCCH time units is located according to the UCI type carried by the PUCCH in the one or more higher priority PUCCH time units and the priority of the UCI.

12. The method of claim 11, wherein the PUCCHs in set Q2 are ordered according to at least one of the following rules:

the PUCCH bearing the HARQ-ACK is positioned in front of the PUCCH bearing the SR;

the PUCCH carrying the higher priority HARQ-ACK is positioned before the PUCCH carrying the lower priority HARQ-ACK;

for a PUCCH carrying multiple UCI types, sorting the PUCCH according to a third predefined rule according to the priority with the highest sorting priority in the multiple UCIs carried by the PUCCH;

sequencing PUCCHs carrying the same UCI type according to a fourth predefined rule;

13. The method of claim 11, wherein the PUCCHs in set Q2 are ordered according to at least one of the following rules:

the PUCCH bearing the HARQ-ACK with higher priority is positioned in front of the PUCCH bearing the SR;

the PUCCH carrying the higher priority SR is positioned before the PUCCH carrying the lower priority HARQ-ACK;

the PUCCHs carrying the same UCI type are sorted according to a fifth predefined rule; and

14. The method of claim 11, wherein the PUCCHs in set Q2 are ordered according to at least one of the following rules:

the PUCCH carrying the lower priority HARQ-ACK is positioned in front of the PUCCH carrying the higher priority SR;

for a PUCCH carrying multiple UCI types, sorting the PUCCH according to a sixth predefined rule according to the priority with the highest sorting priority in the multiple UCIs carried by the PUCCH;

Sequencing PUCCHs carrying the same UCI type according to a seventh predefined rule; and

15. The method of claim 11, wherein the PUCCHs in set Q2 are ordered according to at least one of the following rules:

sorting according to the type of the loaded UCI;

the PUCCHs carrying the same UCI type or the PUCCHs carrying the same UCI type with the highest sequencing priority are sequenced according to an eighth predefined rule; and