WO2024114347A1

WO2024114347A1 - Method and apparatus used in node for wireless communication

Info

Publication number: WO2024114347A1
Application number: PCT/CN2023/131169
Authority: WO
Inventors: 蒋琦; 张晓博
Original assignee: 上海朗帛通信技术有限公司
Priority date: 2022-12-02
Filing date: 2023-11-13
Publication date: 2024-06-06
Also published as: CN118139184A

Abstract

Disclosed in the present application are a method and apparatus used in a node for wireless communication. The method comprises: a node first receiving a first information block, wherein the first information block is used for configuring a first semi-persistent transmission, the first semi-persistent transmission corresponds to a first codeword group, and the first codeword group comprises a first codeword and a second codeword; and then receiving first signaling, wherein the first signaling is used for releasing scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission; the first signaling comprises a first domain set, and the first domain set is used for confirming a PDCCH released for the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission; and the first domain set is associated with the first codeword and the second codeword. The present application improves a confirmation manner of semi-persistent transmission of a terminal, in order to improve the system performance.

Description

A method and device used in a node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly to a transmission scheme and apparatus for semi-persistent scheduling in wireless communication.

Background technique

The 5G wireless cellular communication network system (5G-RAN) enhances the grant-free transmission (Grant Free) mode of UE (User Equipment) based on the original LTE (Long-Term Evolution). Downlink SPS (Semi-Persistent) transmission is achieved through RRC (Radio Resource Control) configuration combined with PDCCH (Physical Downlink Control Channel) activation, while uplink configuration grant (Configured Grant) supports both RRC configuration (Type 1) and RRC configuration combined with PDCCH activation (Type 2). In the design of NR Rel-16, it further supports the activation/release of multiple downlink/uplink grant-free scheduling configurations by the same PDCCH to further improve efficiency.

In the discussion of NR R17 and R18, the scenario of configuring multiple panels on the terminal side has been adopted, and the transmission mode of sending multiple CWs (Codewords) on the terminal side at the same time is also supported. Therefore, the impact of the introduction of the above new scheme on the configuration grant transmission also needs to be considered accordingly.

Summary of the invention

For the future R18 system, the terminal transmission is enhanced. One important aspect is the introduction of two panels. The terminal can use two panels to transmit on two transmission beams at the same time to obtain better spatial diversity/multiplexing gain, and the above transmission method can also be used in uplink configuration grant transmission. At the same time, the terminal can also receive the transmission of two codewords for one SPS configuration from the base station through two panels at the same time. How to optimize the activation and release methods of the existing SPS and configuration grant will be a problem that needs to be considered.

In view of the problem of semi-persistent scheduling in the above-mentioned multi-panel scenario, the present application discloses a solution. It should be noted that in the description of the present application, only two codeword transmission is used as a typical application scenario or example; the present application is also applicable to other scenarios facing similar problems, such as the scenario of single codeword transmission, or for different technical fields, such as other technical fields other than PDCCH activation and release, such as measurement reporting field, uplink data transmission and other technical fields to achieve similar technical effects. In addition, the use of a unified solution for different scenarios (including but not limited to the scenario of two codeword transmission) also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other. In particular, the interpretation of the terms (Terminology), nouns, functions, and variables in the present application (if not otherwise specified) can refer to the definitions in the 3GPP specification protocols TS36 series, TS38 series, and TS37 series. If necessary, reference may be made to 3GPP standards TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.321, TS38.331, TS38.305, TS37.355 to assist in understanding the present application.

The present application discloses a method in a first node for wireless communication, comprising:

receiving a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

receiving a first signaling, where the first signaling is used to release scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

The first signaling includes a first field set, and the first field set is used for PDCCH confirmation (Validation) of the scheduling release (Scheduling Release) corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first field set is associated with the first codeword and the second codeword.

As an embodiment, the above method is characterized in that: when the terminal supports semi-persistent transmission of two codewords, at least one of the two codewords can be released independently to ensure transmission flexibility.

According to one aspect of the present application, the first domain set includes a first domain; when a first condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed (Achieved); when a second condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; the first condition includes that the first domain included in the first domain set is equal to a first value; the second condition includes that the first domain included in the first domain set is equal to a second value.

As an embodiment, the above method is characterized in that: one domain in the first domain set is used to complete the scheduling release confirmation of two codewords to reduce signaling overhead.

According to one aspect of the present application, the first domain set includes a first domain and a second domain; when a third condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; when a fourth condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; the third condition includes that the first domain and the second domain included in the first domain set are equal to a first value and a second value, respectively; the fourth condition includes that the first domain included in the first domain set is equal to a first value and the second domain is not equal to a second value.

As an embodiment, the above method is characterized in that: two domains in the first domain set are used to complete the scheduling release confirmation of two codewords to ensure forward compatibility.

According to one aspect of the present application, the second codeword is predefined in the first codeword group, or high-layer signaling is used to determine the second codeword from the first codeword group.

As an embodiment, the above method is characterized in that: the operation of the second codeword is more flexible than that of the first codeword.

According to one aspect of the present application, the first signaling includes a target domain, which is used to indicate a first index set, the first index set includes a first index, and the first semi-continuous transmission configured by the first information block is associated with the first index; the first index set is associated with K1 semi-continuous transmissions, and the first signaling is used to release the scheduling corresponding to at least one codeword in the first codeword group corresponding to any half-continuous transmission of the K1 semi-continuous transmissions.

As an embodiment, the above method is characterized in that: the first semi-continuous transmission corresponds to the first index, and multiple semi-continuous transmissions are released simultaneously to reduce signaling overhead and improve efficiency.

According to one aspect of the present application, it includes:

abandoning receiving at least the second signal among the first signal and the second signal;

Among them, the first semi-continuous transmission configured by the first information block includes the first signal and the second signal, the first signal corresponds to the first codeword, and the second signal corresponds to the second codeword; when the first signaling is used to release the scheduling corresponding to only the second codeword in the first codeword group corresponding to the first semi-continuous transmission, the first node receives the first signal and gives up receiving the second signal; when the first signaling is used to release the scheduling corresponding to the first codeword and the scheduling corresponding to the second codeword corresponding to the first semi-continuous transmission, the first node gives up receiving the first signal and gives up receiving the second signal.

According to one aspect of the present application, it includes:

abandoning sending at least the second signal among the first signal and the second signal;

Among them, the first semi-continuous transmission configured by the first information block includes the first signal and the second signal, the first signal corresponds to the first codeword, and the second signal corresponds to the second codeword; when the first signaling is used to release the scheduling corresponding to only the second codeword in the first codeword group corresponding to the first semi-continuous transmission, the first node sends the first signal and gives up sending the second signal; when the first signaling is used to release the scheduling corresponding to the first codeword and the scheduling corresponding to the second codeword corresponding to the first semi-continuous transmission, the first node gives up sending the first signal and gives up sending the second signal.

According to one aspect of the present application, it includes:

receiving second signaling, where the second signaling is used to activate scheduling corresponding to the first codeword and scheduling corresponding to the second codeword corresponding to the first semi-persistent transmission;

The second signaling includes a third field, the third field included in the second signaling is of the same type as one of the fields in the first field set, and the third field is used for scheduling activation PDCCH confirmation for both the first codeword and the second codeword.

As an embodiment, the above method is characterized in that when a semi-persistent transmission supporting two codewords is activated, both codewords are activated to simplify the implementation.

The present application discloses a method in a second node for wireless communication, comprising:

Sending a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

Sending a first signaling, where the first signaling is used to release scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

The first signaling includes a first domain set, which is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.

According to one aspect of the present application, the first domain set includes a first domain; when a first condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; when a second condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; the first condition includes that the first domain included in the first domain set is equal to a first value; the second condition includes that the first domain included in the first domain set is equal to a second value.

According to one aspect of the present application, it includes:

Among them, the first semi-continuous transmission configured by the first information block includes the first signal and the second signal, the first signal corresponds to the first codeword, and the second signal corresponds to the second codeword; when the first signaling is used to release the scheduling corresponding to only the second codeword in the first codeword group corresponding to the first semi-continuous transmission, the second node sends the first signal and gives up sending the second signal; when the first signaling is used to release the scheduling corresponding to the first codeword and the scheduling corresponding to the second codeword corresponding to the first semi-continuous transmission, the second node gives up sending the first signal and gives up sending the second signal.

According to one aspect of the present application, it includes:

Among them, the first semi-continuous transmission configured by the first information block includes the first signal and the second signal, the first signal corresponds to the first codeword, and the second signal corresponds to the second codeword; when the first signaling is used to release the scheduling corresponding to only the second codeword in the first codeword group corresponding to the first semi-continuous transmission, the second node receives the first signal and gives up receiving the second signal; when the first signaling is used to release the scheduling corresponding to the first codeword and the scheduling corresponding to the second codeword corresponding to the first semi-continuous transmission, the second node gives up receiving the first signal and gives up receiving the second signal.

According to one aspect of the present application, it includes:

Sending second signaling, where the second signaling is used to activate scheduling corresponding to the first codeword and scheduling corresponding to the second codeword corresponding to the first semi-persistent transmission;

The present application discloses a first node for wireless communication, comprising:

A first receiver receives a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

A first transceiver receives a first signaling, where the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

The present application discloses a second node for wireless communication, comprising:

A first transmitter sends a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

A second transceiver sends a first signaling, where the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

As an embodiment, the benefit of the solution in the present application is to optimize the release/activation method of grant-free scheduling supporting two-codeword transmission, improve flexibility, avoid resource waste, and improve performance.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

FIG1 shows a processing flow chart of a first node according to an embodiment of the present application;

FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

FIG3 is a schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

FIG5 shows a flowchart of a first signaling according to an embodiment of the present application;

FIG6 shows a flowchart of a first signaling according to another embodiment of the present application;

FIG7 shows a flowchart of second signaling according to an embodiment of the present application;

FIG8 shows a schematic diagram of a first signaling according to an embodiment of the present application;

FIG9 shows a schematic diagram of a first information block according to an embodiment of the present application;

FIG10 shows a schematic diagram of a first node according to an embodiment of the present application;

FIG11 is a schematic diagram showing antenna ports and antenna port groups according to an embodiment of the present application;

FIG12 shows a structural block diagram of a processing device in a first node device according to an embodiment of the present application;

FIG13 shows a structural block diagram of a processing device in a second node device according to an embodiment of the present application.

Detailed ways

The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Example 1

Embodiment 1 illustrates a processing flow chart of a first node, as shown in FIG1. In 100 shown in FIG1, each box represents a step. In Embodiment 1, the first node in the present application receives a first information block in step 101, and the first information block is used to configure a first semi-continuous transmission, and the first semi-continuous transmission corresponds to a first codeword group, and the first codeword group includes a first codeword and a second codeword; and receives a first signaling in step 102, and the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission.

In Embodiment 1, the first signaling includes a first domain set, and the first domain set is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.

As an embodiment, the first information block is transmitted via RRC signaling.

As an embodiment, the first information block includes one or more IEs (Information Elements) in TS 38.331.

As an embodiment, the first information block includes one or more fields in the SPS-Config IE in TS 38.331.

As an embodiment, the first information block includes one or more fields in the ConfiguredGrantConfig IE in TS 38.331.

As an embodiment, the name of the RRC signaling used to transmit the first information block includes SPS (Semi-persistent Scheduling).

As an embodiment, the name of the RRC signaling used to transmit the first information block includes Configured Grant.

As an embodiment, the name of the RRC signaling used to transmit the first information block includes Config.

As an embodiment, the first half continuous transmission corresponds to multiple downlink transmissions (DL Transmission).

As an embodiment, the first half continuous transmission corresponds to multiple uplink transmissions (UL Transmission).

As an embodiment, the first half continuous transmission corresponds to multiple PDSCHs (Physical Downlink Shared Channels).

As an embodiment, the first half continuous transmission corresponds to multiple PUSCHs (Physical Uplink Shared Channels).

As an embodiment, the first semi-persistent transmission corresponds to a first index, and the first index is used to identify the first semi-persistent transmission.

As an embodiment, the first semi-persistent transmission does not include dynamic scheduling.

As an embodiment, the first semi-persistent transmission does not include a dynamic grant.

As an embodiment, the first half continuous transmission corresponds to an SPS-ConfigIndex.

As an embodiment, the first half of the continuous transmission corresponds to a configuredGrantConfigIndex.

As an embodiment, the first half of the continuous transmission corresponds to a configuredGrantConfigIndexMAC.

As an embodiment, the first codeword corresponds to Codeword 1.

As an embodiment, the second codeword corresponds to Codeword 2.

As an embodiment, the first codeword corresponds to the transmission of one or more TBs (Transport Block).

As an embodiment, the second codeword corresponds to the transmission of one or more TBs.

As an embodiment, the first codeword is associated with a first reference signal resource set, and the second codeword is associated with a second reference signal resource set.

As a sub-embodiment of this embodiment, the first reference signal resource set and the second reference signal resource set are different.

As a sub-embodiment of this embodiment, the first reference signal resource set corresponds to an SRS (Sounding Reference Signal, detection reference channel) resource set.

As a sub-embodiment of this embodiment, the second reference signal resource set corresponds to an SRS resource set.

As a sub-embodiment of this embodiment, the first reference signal resource set corresponds to an SRI (Sounding Reference Signal Resource Indicator).

As a sub-embodiment of this embodiment, the second reference signal resource set corresponds to an SRI.

As a sub-embodiment of this embodiment, the first reference signal resource set corresponds to a Panel.

As a sub-embodiment of this embodiment, the second reference signal resource set corresponds to a Panel.

As a sub-embodiment of this embodiment, the first reference signal resource set corresponds to a CSI-RS (Channel State Information Reference Signal) resource set.

As a sub-embodiment of this embodiment, the second reference signal resource set corresponds to a CSI-RS resource set.

As a sub-embodiment of this embodiment, the first reference signal resource set corresponds to an SSB (SS/PBCH Block, synchronization signal/physical broadcast channel block).

As a sub-embodiment of this embodiment, the second reference signal resource set corresponds to an SSB.

As a sub-embodiment of this embodiment, the first reference signal resource set includes at least one SRS resource.

As a sub-embodiment of this embodiment, the second reference signal resource set includes at least one SRS resource.

As a sub-embodiment of this embodiment, the wireless signal corresponding to the first codeword and at least one reference signal resource included in the first reference signal resource set are QCL (Quasi Co-located).

As a sub-embodiment of this embodiment, the wireless signal corresponding to the second codeword and at least one reference signal resource included in the second reference signal resource set are QCL.

As an embodiment, the first semi-continuous transmission corresponds to the first codeword and the second codeword.

As an embodiment, the first semi-continuous transmission includes a wireless signal corresponding to the first codeword and a wireless signal corresponding to the second codeword.

As an embodiment, the first signaling includes DCI (Downlink Control Information).

As an embodiment, the physical layer channel occupied by the first signaling includes PDCCH.

As an embodiment, the first signaling includes MAC (Medium Access Control) CE (Control Elements).

As an embodiment, the CRC (Cyclic Redundancy Check) included in the first signaling is scrambled by CS-RNTI (Configured Grant Radio Network Temporary Identity).

As an embodiment, the CRC included in the first signaling is scrambled by SP-CSI-RNTI (Semi-persistent Channel State Information Radio Network Temporary Identity).

As an embodiment, the CRC included in the first signaling is scrambled by an RNTI (Radio Network Temporary Identity) other than C-RNTI (Cell Radio Network Temporary Identity).

As an embodiment, the first domain set includes a plurality of domains.

As an embodiment, the first domain set includes only one domain.

As an embodiment, the first field set includes a HARQ (Hybrid Automatic Repeat reQuest) process number (Process Number) field, a RV (Redundancy Version) field, an MCS (Modulation and coding scheme) field and a FDRA (Frequency Domain Resource Allocation) field.

As an embodiment, the first domain set includes at least one of a HARQ process number domain, an RV domain, an MCS domain or a FDRA domain.

As an embodiment, the first domain set includes an RV domain, an MCS domain and an FDRA domain.

As an embodiment, the first domain set includes at least one of an RV domain, an MCS domain or an FDRA domain.

As an embodiment, when the first semi-continuous transmission does not correspond to an SPS-ConfigIndex, the first domain set includes a HARQ process number domain; when the first semi-continuous transmission corresponds to an SPS-ConfigIndex, the first domain set does not include a HARQ process number domain.

As an embodiment, when the first semi-continuous transmission does not correspond to a configuredGrantConfigIndex, the first domain set includes a HARQ process number domain; when the first semi-continuous transmission corresponds to a configuredGrantConfigIndex, the first domain set does not include a HARQ process number domain.

As an embodiment, when the first semi-continuous transmission does not correspond to a configuredGrantConfigIndexMAC, the first domain set includes a HARQ process number domain; when the first semi-continuous transmission corresponds to a configuredGrantConfigIndexMAC, the first domain set does not include a HARQ process number domain.

As an embodiment, the first domain set is used for PDCCH confirmation of scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-persistent transmission.

As an embodiment, the first domain set is used for the PDCCH confirmation of the scheduling release corresponding to the first codeword in the first codeword group corresponding to the first semi-persistent transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword.

As an embodiment, the meaning of the first domain set being associated with the first codeword and the second codeword includes: at least one domain in the first domain set is used for PDCCH confirmation of scheduling activation for the first codeword and PDCCH confirmation of scheduling activation for the second codeword.

As an embodiment, the first domain set is associated with the first codeword and the second codeword, which means that: the first domain The set is used for a PDCCH confirmation of a scheduled release for the first codeword and a PDCCH confirmation of a scheduled release for the second codeword.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in FIG2 .

FIG. 2 illustrates a diagram of a network architecture 200 for a 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) system. The 5G NR or LTE network architecture 200 may be referred to as an EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include a UE (User Equipment) 201, an NR-RAN (Next Generation Radio Access Network) 202, an EPC (Evolved Packet Core)/5G-CN (5G-Core Network, 5G Core Network) 210, an HSS (Home Subscriber Server) 220 and an Internet service 230. The EPS may be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks that provide circuit-switched services or other cellular networks. NR-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination towards UE 201. gNB 203 may be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmit receive node), or some other suitable terminology. gNB 203 provides an access point to EPC/5G-CN 210 for UE 201. Examples of UE 201 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband Internet of Things device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. A person skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. The gNB 203 is connected to the EPC/5G-CN 210 via an S1/NG interface. The EPC/5G-CN 210 includes an MME (Mobility Management Entity)/AMF (Authentication Management Field)/UPF (User Plane Function) 211, other MME/AMF/UPF 214, an S-GW (Service Gateway) 212, and a P-GW (Packet Date Network Gateway) 213. MME/AMF/UPF211 is the control node that handles the signaling between UE201 and EPC/5G-CN 210. In general, MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW212, which itself is connected to P-GW213. P-GW213 provides UE IP address allocation and other functions. P-GW213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, intranet, IMS (IP Multimedia Subsystem) and packet switching streaming services.

As an embodiment, the UE201 corresponds to the first node in the present application.

As an embodiment, the UE 201 supports sending multiple panels simultaneously.

As an embodiment, the UE201 supports sending based on multiple codewords in the same time-frequency resource set.

As an embodiment, the UE201 supports multiple uplink RF (Radio Frequency).

As an embodiment, the UE 201 supports simultaneous transmission of multiple uplink RFs.

As an embodiment, the UE 201 supports reporting multiple UE capability value sets.

As an embodiment, the NR node B corresponds to the second node in this application.

As an embodiment, the NR Node B supports simultaneously receiving signals from multiple Panels of a terminal.

As an embodiment, the NR Node B supports receiving multiple uplink RF (Radio Frequency) signals sent from the same terminal.

As an embodiment, the NR Node B is a base station.

As an embodiment, the NR Node B is a cell.

As an embodiment, the NR Node B includes multiple cells.

As an embodiment, the first node in the present application corresponds to the UE201, and the second node in the present application corresponds to the NR node B.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 3. As shown. Figure 3 is a schematic diagram of an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, and Figure 3 shows the radio protocol architecture of the control plane 300 between a first communication node device (UE, gNB or RSU in V2X) and a second communication node device (gNB, UE or RSU in V2X) with three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303 and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and the PDCP sublayer 304 also provides inter-zone mobility support for the first communication node device to the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, a server, etc.).

As an embodiment, the wireless protocol architecture in FIG. 3 is applicable to the first node in the present application.

As an embodiment, the wireless protocol architecture in FIG. 3 is applicable to the second node in the present application.

As an embodiment, the PDCP 304 of the second communication node device is used to generate the scheduling of the first communication node device.

As an embodiment, the PDCP 354 of the second communication node device is used to generate the schedule of the first communication node device.

As an embodiment, the first information block is generated in the RRC306.

As an embodiment, the first signaling is generated in the PHY301 or the PHY351.

As an embodiment, the first signaling is generated by the MAC302 or MAC352.

As an embodiment, the first signal is generated by the MAC302 or MAC352.

As an embodiment, the first signal is generated by the RRC306.

As an embodiment, the second signal is generated by the MAC302 or MAC352.

As an embodiment, the second signal is generated by the RRC306.

As an embodiment, the second signaling is generated in the PHY301 or the PHY351.

As an embodiment, the second signaling is generated by the MAC302 or MAC352.

As an embodiment, the first node is a terminal.

As an embodiment, the first node is a relay.

As an embodiment, the second node is a relay.

As an embodiment, the second node is a base station.

As an embodiment, the second node is a gNB.

As an embodiment, the second node is a TRP (Transmitter Receiver Point).

As an embodiment, the second node is used to manage multiple TRPs.

As an embodiment, the second node is a node for managing multiple cells.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

The first communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454 and an antenna 452.

The second communication device 410 includes a controller/processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter/receiver 418 and an antenna 420 .

In transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of the L2 layer. In transmission from the second communication device 410 to the first communication device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with a reference signal (e.g., a pilot) in the time domain and/or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding/beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding/beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding/beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller/processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to the controller/processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller/processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier/single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding/beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives the RF signal through its corresponding antenna 420, converts the received RF signal into a baseband signal, The baseband signal is provided to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of the L1 layer. The controller/processor 475 implements the L2 layer functions. The controller/processor 475 may be associated with a memory 476 storing program codes and data. The memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller/processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. The upper layer data packets from the controller/processor 475 may be provided to the core network.

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: first receives a first information block, the first information block is used to configure a first semi-continuous transmission, the first semi-continuous transmission corresponds to a first codeword group, the first codeword group includes a first codeword and a second codeword; then receives a first signaling, the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first signaling includes a first domain set, the first domain set is used for PDCCH confirmation of the scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.

As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: first receiving a first information block, the first information block is used to configure a first semi-continuous transmission, the first semi-continuous transmission corresponds to a first codeword group, the first codeword group includes a first codeword and a second codeword; then receiving a first signaling, the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first signaling includes a first domain set, the first domain set is used for PDCCH confirmation of the scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.

As an embodiment, the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 device at least: first sends a first information block, the first information block is used to configure a first semi-continuous transmission, the first semi-continuous transmission corresponds to a first codeword group, the first codeword group includes a first codeword and a second codeword; then sends a first signaling, the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first signaling includes a first domain set, the first domain set is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, wherein the action includes: first sending a first information block, wherein the first information block is used to configure a first semi-continuous transmission, wherein the first semi-continuous transmission corresponds to a first codeword group, wherein the first codeword group includes a first codeword and a second codeword; subsequently sending a first signaling, wherein the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first signaling includes a first domain set, wherein the first domain set is used for PDCCH confirmation of the scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; and the first domain set is associated with the first codeword and the second codeword.

As an embodiment, the first communication device 450 corresponds to the first node in this application.

As an embodiment, the second communication device 410 corresponds to the second node in this application.

As an embodiment, the first communication device 450 is a UE.

As an embodiment, the first communication device 450 is a terminal.

As an embodiment, the first communication device 450 is a relay.

As an embodiment, the second communication device 410 is a base station.

As an embodiment, the second communication device 410 is a relay.

As an embodiment, the second communication device 410 is a network device.

As an embodiment, the second communication device 410 is a serving cell.

As an embodiment, the second communication device 410 is a TRP.

As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 are used to receive the first information block; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, and the controller/processor 475 are used to send the first information block.

As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 are used to receive the first signaling; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, and the controller/processor 475 are used to send the first signaling.

As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are used to abandon receiving at least the second signal among the first signal and the second signal; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 are used to abandon sending at least the second signal among the first signal and the second signal.

As an implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 are used to abandon sending at least the second signal among the first signal and the second signal; and at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 are used to abandon receiving at least the second signal among the first signal and the second signal.

As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 are used to receive the second signaling; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, and the controller/processor 475 are used to send the second signaling.

Example 5

Embodiment 5 illustrates a flowchart of a first signaling, as shown in FIG5. In FIG5, the first node U1 communicates with the second node N2 via a wireless link. It is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in this application. In the absence of conflict, the embodiment, sub-embodiment and subsidiary embodiment in Embodiment 5 can be applied to Embodiment 6 or 7; conversely, in the absence of conflict, any embodiment, sub-embodiment and subsidiary embodiment in Embodiment 6 or Embodiment 7 can be applied to Embodiment 5.

For the first node U1 , a first information block is received in step S10; a first signaling is received in step S11; and sending at least the second signal of the first signal and the second signal is abandoned in step S12.

For the second node N2 , a first information block is sent in step S20; a first signaling is sent in step S21; and receiving at least the second signal of the first signal and the second signal is abandoned in step S22.

In embodiment 5, the first information block is used to configure a first semi-continuous transmission, the first semi-continuous transmission corresponds to a first codeword group, the first codeword group includes a first codeword and a second codeword; the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first signaling includes a first domain set, the first domain set is used for PDCCH confirmation of the scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword; the first semi-continuous transmission configured by the first information block includes the first signal and the second signal, the first signal corresponds to the first codeword, and the second signal corresponds to the second codeword; when the first signaling is used to release the scheduling corresponding to only the second codeword in the first codeword group corresponding to the first semi-continuous transmission, the first node sends the first signal and gives up sending the second signal; when the first signaling is used to release the scheduling corresponding to the first codeword and the scheduling corresponding to the second codeword corresponding to the first semi-continuous transmission, the first node gives up sending the first signal and gives up sending the second signal.

Typically, the step S12 includes giving up sending the first signal and the second signal, and the step S22 includes giving up receiving the first signal and the second signal.

Typically, the step S12 includes giving up sending the second signal and sending the first signal, and the step S22 includes giving up receiving the second signal and receiving the first signal.

Typically, the first domain set includes a first domain; when the first condition is met, the PDCCH confirmation of the scheduling release corresponding to only the second codeword in the first codeword group corresponding to the first semi-persistent transmission is completed; when the second condition is met, the first The PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; the first condition includes that the first domain included in the first domain set is equal to the first value; the second condition includes that the first domain included in the first domain set is equal to the second value.

As an embodiment, the first domain included in the first domain set is a HARQ process number domain.

As an embodiment, the first domain included in the first domain set is an RV domain.

As an embodiment, the first domain included in the first domain set is an MCS domain.

As an embodiment, the first domain included in the first domain set is a FDRA domain.

As an embodiment, the first value is equal to all "1", and the second value is equal to all "0".

As an embodiment, the first value is equal to all "0"s, and the second value is equal to all "1"s.

As an embodiment, the first value is equal to all "0", and the second value is configurable.

As an embodiment, the first value is equal to all "1", and the second value is configurable.

As an embodiment, the second value is equal to all "0", and the first value is configurable.

As an embodiment, the second value is equal to all "1", and the first value is configurable.

Typically, the first domain set includes a first domain and a second domain; when the third condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; when the fourth condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; the third condition includes that the first domain and the second domain included in the first domain set are equal to a first value and a second value, respectively; the fourth condition includes that the first domain included in the first domain set is equal to a first value and the second domain is not equal to a second value.

As an embodiment, the first domain and the second domain included in the first domain set are two different domains among the HARQ process number domain, the RV domain, the MCS domain and the FDRA domain.

As an embodiment, the first domain and the second domain included in the first domain set are respectively a HARQ process number domain and a RV domain.

As an embodiment, the first domain and the second domain included in the first domain set are respectively a HARQ process number domain and an MCS domain.

As an embodiment, the first domain and the second domain included in the first domain set are respectively a HARQ process number domain and a FDRA domain.

As an embodiment, the first domain and the second domain included in the first domain set are an RV domain and an MCS domain, respectively.

As an embodiment, the first domain and the second domain included in the first domain set are respectively an RV domain and an FDRA domain.

As an embodiment, the first domain and the second domain included in the first domain set are respectively an MCS domain and an FDRA domain.

As an embodiment, the first value is equal to all "1".

As an embodiment, the second value is equal to all "0".

As an embodiment, the first value is equal to all "0".

As an embodiment, the second value is equal to all "1".

As an embodiment, the second value is configurable.

As an embodiment, the first value is configurable.

Typically, the second codeword is predefined in the first codeword group, or higher layer signaling is used to determine the second codeword from the first codeword group.

As an embodiment, the second codeword is predefined in the first codeword group.

As an embodiment, the high-layer signaling is used to determine the second codeword from the first codeword group.

As an embodiment, the high-layer signaling includes RRC signaling.

As an embodiment, the high-level signaling includes MAC CE.

As an embodiment, the second codeword is a codeword with a smaller corresponding SRI in the first codeword group.

As an embodiment, the second codeword is a codeword having a smaller corresponding SRS resource set index in the first codeword group.

As an embodiment, the second codeword is a codeword with a smaller corresponding CORESET Pool Index in the first codeword group.

As an embodiment, the second codeword is a codeword with a larger corresponding SRI in the first codeword group.

As an embodiment, the second codeword is a codeword having a larger corresponding SRS resource set index in the first codeword group.

As an embodiment, the second codeword is a codeword having a larger corresponding CORESET Pool Index in the first codeword group.

Typically, the first signaling includes a target domain, the target domain is used to indicate a first index set, the first index set includes a first index, the first semi-continuous transmission configured by the first information block is associated with the first index; the first index set is associated with K1 semi-continuous transmissions, and the first signaling is used to release the scheduling corresponding to at least one codeword in the first codeword group corresponding to any half-continuous transmission of the K1 semi-continuous transmissions.

As an embodiment, the target domain included in the first domain set is a HARQ process number domain.

As an embodiment, the target domain included in the first domain set is not used for PDCCH confirmation of scheduling release corresponding to the first codeword group.

As an embodiment, the first index is sps-ConfigIndex.

As an embodiment, the first index is configuredGrantConfigIndex.

As an embodiment, the first index is configuredGrantConfigIndexMAC.

As an embodiment, the first index is a non-negative integer.

As an embodiment, the first signal and the second signal correspond to one UL Grant.

As an embodiment, the first signal and the second signal correspond to one PUSCH.

As an embodiment, the first signal and the second signal correspond to two PUSCHs respectively.

As an embodiment, the first signal and the second signal correspond to one UL-SCH.

As an embodiment, the first signal and the second signal correspond to two UL-SCHs respectively.

Example 6

Embodiment 6 illustrates another flowchart of the first signaling, as shown in FIG6. In FIG6, the first node U3 communicates with the second node N4 via a wireless link. It is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in this application. In the absence of conflict, the embodiment, sub-embodiment and subsidiary embodiment in Embodiment 6 can be applied to Embodiment 5 or 7; conversely, in the absence of conflict, any embodiment, sub-embodiment and subsidiary embodiment in Embodiment 5 or Embodiment 7 can be applied to Embodiment 6.

For the first node U3 , the first information block is received in step S30; the first signaling is received in step S31; and the receiving of at least the second signal of the first signal and the second signal is abandoned in step S32.

For the second node N4 , a first information block is sent in step S40; a first signaling is sent in step S41; and sending at least the second signal of the first signal and the second signal is abandoned in step S42.

In embodiment 6, the first information block is used to configure a first semi-continuous transmission, the first semi-continuous transmission corresponds to a first codeword group, the first codeword group includes a first codeword and a second codeword; the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first signaling includes a first domain set, the first domain set is used for PDCCH confirmation of the scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword; the first semi-continuous transmission configured by the first information block includes the first signal and the second signal, the first signal corresponds to the first codeword, and the second signal corresponds to the second codeword; when the first signaling is used to release the scheduling corresponding to only the second codeword in the first codeword group corresponding to the first semi-continuous transmission, the first node receives the first signal and gives up receiving the second signal; when the first signaling is used to release the scheduling corresponding to the first codeword and the scheduling corresponding to the second codeword corresponding to the first semi-continuous transmission, the first node gives up receiving the first signal and gives up receiving the second signal.

Typically, the step S32 includes giving up receiving the first signal and the second signal, and the step S42 includes giving up sending the first signal and the second signal.

Typically, the step S32 includes giving up receiving the second signal and receiving the first signal, and the step S42 includes giving up sending the second signal and sending the first signal.

Typically, the first domain set includes a first domain; when a first condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; when a second condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; the first condition includes that the first domain included in the first domain set is equal to a first value; the second condition includes that the first domain included in the first domain set is equal to a second value.

Typically, the first domain set includes a first domain and a second domain; when the third condition is met, the first semi-persistent transmission is The PDCCH confirmation of the scheduling release corresponding to the first codeword and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; when the fourth condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; the third condition includes that the first domain and the second domain included in the first domain set are equal to the first value and the second value respectively; the fourth condition includes that the first domain included in the first domain set is equal to the first value and the second domain is not equal to the second value.

As an embodiment, the first signal and the second signal correspond to a DL Assignment.

As an embodiment, the first signal and the second signal correspond to one PDSCH.

As an embodiment, the first signal and the second signal correspond to two PDSCHs respectively.

As an embodiment, the first signal and the second signal correspond to a DL-SCH (Downlink Shared Channel).

As an embodiment, the first signal and the second signal correspond to two DL-SCHs respectively.

Example 7

Embodiment 7 illustrates a flowchart of a second signaling, as shown in FIG7. In FIG7, the first node U5 communicates with the second node N6 via a wireless link. It is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in this application. In the absence of conflict, the embodiment, sub-embodiment and subsidiary embodiment in Embodiment 7 can be applied to Embodiment 5 or 6; conversely, in the absence of conflict, any embodiment, sub-embodiment and subsidiary embodiment in Embodiment 5 or Embodiment 6 can be applied to Embodiment 7.

For the first node U5 , the second signaling is received in step S50.

For the second node N6 , a second signaling is sent in step S60.

In Example 7, the second signaling is used to activate the scheduling corresponding to the first codeword corresponding to the first semi-continuous transmission and the scheduling corresponding to the second codeword; the second signaling includes a third field, and the third field included in the second signaling is the same type of field as one of the fields in the first field set, and the third field is used to activate PDCCH confirmation for the common scheduling of the first codeword and the second codeword.

As an embodiment, the second signaling includes DCI.

As an embodiment, the physical layer channel occupied by the second signaling includes PDCCH.

As an embodiment, the second signaling includes MAC CE.

As an embodiment, the CRC included in the second signaling is scrambled by CS-RNTI.

As an embodiment, the CRC included in the second signaling is scrambled by SP-CSI-RNTI.

As an embodiment, the CRC included in the second signaling is scrambled by an RNTI other than C-RNTI.

As an embodiment, the third field is used for scheduling activation PDCCH confirmation for both the first codeword and the second codeword.

As an embodiment, the third field included in the second signaling corresponds to the HARQ process number field.

As an embodiment, the third field included in the second signaling corresponds to the RV field.

As an embodiment, the meaning that the third domain included in the second signaling and a domain in the first domain set are the same type of domains includes: the third domain included in the second signaling and a domain in the first domain set have the same corresponding name.

Example 8

Embodiment 8 illustrates a schematic diagram of a first signaling, as shown in FIG8. In FIG8, the first signaling includes a first domain set, and the first domain set and the second domain set correspond to a first codeword and a second codeword; the first signaling also includes a second domain set, and the second domain set includes a first candidate domain and a second candidate domain, and the first candidate domain and the second candidate domain correspond to a first codeword and a second codeword, respectively.

As an embodiment, the first candidate domain and the second candidate domain are both TDRA (Time Domain Resource Allocation, time domain resource allocation) domain.

As an embodiment, the first candidate domain and the second candidate domain are both DAI (Downlink assignment index) domains.

As an embodiment, the first candidate domain and the second candidate domain are both TPC (Transmission Power Control) command related domains.

Example 9

Embodiment 9 illustrates a schematic diagram of a first information block, as shown in FIG9. In FIG9, the first information block includes a first information sub-block, a second information sub-block and a third information sub-block, the first information sub-block set is simultaneously applied to the transmission of the first codeword and the transmission of the second codeword, the second information sub-block is applied to the transmission of the first codeword, and the third information sub-block is applied to the transmission of the second codeword.

As an embodiment, the second information sub-block set includes multiple fields in an IE in TS 38.331.

As an embodiment, the second information sub-block corresponds to one field in an IE in TS 38.331.

As an embodiment, the third information sub-block set includes multiple fields in an IE in TS 38.331.

As an embodiment, the third information sub-block corresponds to 1 field in an IE in TS 38.331.

As an embodiment, the second information sub-block corresponds to the n1PUCCH-AN domain in the SPS-Config IE in TS 38.331.

As an embodiment, the second information sub-block corresponds to the harq-ProcID-Offset field in the SPS-Config IE in TS 38.331.

As an embodiment, the second information sub-block corresponds to the harq-CodebookID field in the SPS-Config IE in TS 38.331.

As an embodiment, the third information sub-block corresponds to the n1PUCCH-AN domain in the SPS-Config IE in TS 38.331.

As an embodiment, the third information sub-block corresponds to the harq-ProcID-Offset field in the SPS-Config IE in TS 38.331.

As an embodiment, the third information sub-block corresponds to the harq-CodebookID field in the SPS-Config IE in TS 38.331.

As an embodiment, the second information sub-block corresponds to the srs-ResourceIndicator field in the ConfiguredGrantConfig IE in TS 38.331.

As an embodiment, the second information sub-block corresponds to the srs-pathlossReferenceIndex field in the ConfiguredGrantConfig IE in TS 38.331.

As an embodiment, the second information sub-block corresponds to the cg-DMRS-Configuration field in the ConfiguredGrantConfig IE in TS 38.331.

As an embodiment, the second information sub-block corresponds to the p0-PUSCH-Alpha field in the ConfiguredGrantConfig IE in TS 38.331.

As an embodiment, the third information sub-block corresponds to the srs-ResourceIndicator field in the ConfiguredGrantConfig IE in TS 38.331.

As an embodiment, the third information sub-block corresponds to the srs-pathlossReferenceIndex field in the ConfiguredGrantConfig IE in TS 38.331.

As an embodiment, the third information sub-block corresponds to the cg-DMRS-Configuration field in the ConfiguredGrantConfig IE in TS 38.331.

As an embodiment, the third information sub-block corresponds to the p0-PUSCH-Alpha field in the ConfiguredGrantConfig IE in TS 38.331.

Example 10

Embodiment 10 illustrates a schematic diagram of a first node, as shown in FIG10. In FIG10, the first node has two panels, namely a first panel and a second panel, the first panel and the second panel are used to send a wireless signal associated with the first codeword and a wireless signal associated with the second codeword respectively; the first panel and the second panel are respectively Associated with the first reference signal resource set and the second reference signal resource set; the two panels can send two independent wireless signals in the same block of time-frequency resources.

As an embodiment, the wireless signal sent in the first Panel and a reference signal resource in the first reference signal resource set are QCL.

As an embodiment, the wireless signal sent in the second Panel and a reference signal resource in the second reference signal resource set are QCL.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of antenna ports and antenna port groups, as shown in FIG11 .

In embodiment 11, an antenna port group includes a positive integer number of antenna ports; an antenna port is formed by superimposing antennas in a positive integer number of antenna groups through antenna virtualization; an antenna group includes a positive integer number of antennas. An antenna group is connected to a baseband processor through an RF (Radio Frequency) chain, and different antenna groups correspond to different RF chains. The mapping coefficients of all antennas in the positive integer number of antenna groups included in a given antenna port to the given antenna port constitute a beamforming vector corresponding to the given antenna port. The mapping coefficients of multiple antennas included in any given antenna group in the positive integer number of antenna groups included in the given antenna port to the given antenna port constitute an analog beamforming vector of the given antenna group. The analog beamforming vectors corresponding to the positive integer number of antenna groups are arranged diagonally to form an analog beamforming matrix corresponding to the given antenna port. The mapping coefficients of the positive integer number of antenna groups to the given antenna port constitute a digital beamforming vector corresponding to the given antenna port. The beamforming vector corresponding to the given antenna port is obtained by multiplying the analog beamforming matrix corresponding to the given antenna port and the digital beamforming vector. Different antenna ports in an antenna port group are composed of the same antenna group, and different antenna ports in the same antenna port group correspond to different beamforming vectors.

FIG. 11 shows two antenna port groups: antenna port group #0 and antenna port group #1. The antenna port group #0 is composed of antenna group #0, and the antenna port group #1 is composed of antenna group #1 and antenna group #2. The mapping coefficients of the multiple antennas in the antenna group #0 to the antenna port group #0 constitute the analog beamforming vector #0, and the mapping coefficients of the antenna group #0 to the antenna port group #0 constitute the digital beamforming vector #0. The mapping coefficients of the multiple antennas in the antenna group #1 and the multiple antennas in the antenna group #2 to the antenna port group #1 respectively constitute the analog beamforming vector #1 and the analog beamforming vector #2, and the mapping coefficients of the antenna group #1 and the antenna group #2 to the antenna port group #1 constitute the digital beamforming vector #1. The beamforming vector corresponding to any antenna port in the antenna port group #0 is obtained by the product of the analog beamforming vector #0 and the digital beamforming vector #0. The beamforming vector corresponding to any antenna port in the antenna port group #1 is obtained by multiplying the analog beamforming matrix formed by diagonally arranging the analog beamforming vector #1 and the analog beamforming vector #2 and the digital beamforming vector #1.

As a sub-embodiment, an antenna port group includes one antenna port. For example, the antenna port group #0 in FIG. 9 includes one antenna port.

As a subsidiary embodiment of the above sub-embodiment, the analog beamforming matrix corresponding to the one antenna port is reduced to an analog beamforming vector, the digital beamforming vector corresponding to the one antenna port is reduced to a scalar, and the beamforming vector corresponding to the one antenna port is equal to the analog beamforming vector corresponding to the one antenna port.

As a sub-embodiment, an antenna port group includes multiple antenna ports. For example, the antenna port group #1 in FIG. 9 includes multiple antenna ports.

As a subsidiary embodiment of the above sub-embodiment, the multiple antenna ports correspond to the same analog beamforming matrix and different digital beamforming vectors.

As a sub-embodiment, antenna ports in different antenna port groups correspond to different analog beamforming matrices.

As a sub-embodiment, any two antenna ports in an antenna port group are QCL (Quasi-Colocated).

As a sub-embodiment, any two antenna ports in an antenna port group are spatial QCL.

As an embodiment, the multiple antenna port groups in the figure correspond to a Panel in the present application.

As an embodiment, the first reference signal resource set corresponds to multiple antenna port groups.

As an embodiment, the second reference signal resource set corresponds to multiple antenna port groups.

As an embodiment, the first reference signal resource set corresponds to an antenna port group.

As an embodiment, the second reference signal resource set corresponds to an antenna port group.

As an embodiment, one reference signal resource in the first reference signal resource set corresponds to one antenna port group.

As an embodiment, one reference signal resource in the second reference signal resource set corresponds to one antenna port group.

Example 12

Embodiment 12 illustrates a structural block diagram of a first node, as shown in FIG12 . In FIG12 , the first node 1200 includes a first receiver 1201 and a first transceiver 1202 .

A first receiver 1201 receives a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

A first transceiver 1202 receives a first signaling, where the first signaling is used to release scheduling corresponding to at least one of the first codeword and the second codeword corresponding to the first semi-persistent transmission;

In Embodiment 12, the first signaling includes a first domain set, and the first domain set is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.

As an embodiment, the first domain set includes a first domain; when a first condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; when a second condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; the first condition includes that the first domain included in the first domain set is equal to a first value; the second condition includes that the first domain included in the first domain set is equal to a second value.

As an embodiment, the first domain set includes a first domain and a second domain; when the third condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; when the fourth condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; the third condition includes that the first domain and the second domain included in the first domain set are equal to a first value and a second value respectively; the fourth condition includes that the first domain included in the first domain set is equal to a first value and the second domain is not equal to a second value.

As an embodiment, the second codeword is predefined in the first codeword group, or high-layer signaling is used to determine the second codeword from the first codeword group.

As an embodiment, the first signaling includes a target domain, the target domain is used to indicate a first index set, the first index set includes a first index, and the first semi-continuous transmission configured by the first information block is associated with the first index; the first index set is associated with K1 semi-continuous transmissions, and the first signaling is used to release the scheduling corresponding to at least one codeword in the first codeword group corresponding to any half-continuous transmission of the K1 semi-continuous transmissions.

As an embodiment, it includes:

The first transceiver 1202 abandons receiving at least the second signal among the first signal and the second signal;

As an embodiment, it includes:

The first transceiver 1202 abandons sending at least the second signal of the first signal and the second signal;

As an embodiment, it includes:

The first receiver 1201 receives a second signaling, where the second signaling is used to activate scheduling corresponding to the first codeword and the second codeword corresponding to the first semi-persistent transmission;

The second signaling includes a third field, and the third field included in the second signaling and one field in the first field set are The same type of field, the third field is used for scheduling activation PDCCH confirmation common to the first codeword and the second codeword.

As an embodiment, the first receiver 1201 includes at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 in Embodiment 4.

As an embodiment, the first transceiver 1202 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receiving processor 458, the multi-antenna transmitting processor 457, the receiving processor 456, the transmitting processor 468, and the controller/processor 459 in Example 4.

Example 13

Embodiment 13 illustrates a structural block diagram of a second node, as shown in FIG13 . In FIG13 , the second node 1300 includes a first transmitter 1301 and a second transceiver 1302 .

A first transmitter 1301 sends a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

The second transceiver 1302 sends a first signaling, where the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

In Embodiment 13, the first signaling includes a first domain set, and the first domain set is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.

As an embodiment, it includes:

The second transceiver 1302 abandons sending at least the second signal of the first signal and the second signal;

As an embodiment, it includes:

The second transceiver 1302 abandons receiving at least the second signal among the first signal and the second signal;

The first semi-persistent transmission configured by the first information block includes the first signal and the second signal, the first signal corresponds to the first codeword, and the second signal corresponds to the second codeword; when the first signaling is used to release the scheduling corresponding to only the second codeword in the first codeword group corresponding to the first semi-persistent transmission, the second node receives the first signal and gives up receiving the second signal; when the first signaling is used to release the scheduling corresponding to the first codeword corresponding to the first semi-persistent transmission When the corresponding scheduling and the scheduling corresponding to the second codeword are performed, the second node gives up receiving the first signal and gives up receiving the second signal.

As an embodiment, it includes:

The first transmitter 1301 sends a second signaling, where the second signaling is used to activate scheduling corresponding to the first codeword and scheduling corresponding to the second codeword corresponding to the first semi-persistent transmission;

As an embodiment, the first transmitter 1301 includes at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 414, and the controller/processor 475 in Embodiment 4.

As an embodiment, the second transceiver 1302 includes at least the first six of the antenna 420, receiver 418, transmitter 418, multi-antenna receive processor 472, multi-antenna transmit processor 471, transmit processor 414, receive processor 470, and controller/processor 475 in Embodiment 4.

A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. The present application is not limited to any specific form of combination of software and hardware. The first node in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication equipment, transportation vehicles, vehicles, RSU (Road Side Unit), aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The second node in the present application includes but is not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB, gNB, transmission receiving node TRP, GNSS (Global Navigation Satellite System), relay satellite, satellite base station, aerial base station, RSU, drone, test equipment, such as transceiver devices or signaling testers that simulate some functions of base stations, and other wireless communication equipment.

It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

A first node used for wireless communication, comprising:

A first receiver receives a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

A first transceiver receives a first signaling, where the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

The first signaling includes a first domain set, which is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.
The first node according to claim 1 is characterized in that the first domain set includes a first domain; when a first condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; when a second condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; the first condition includes that the first domain included in the first domain set is equal to a first value; the second condition includes that the first domain included in the first domain set is equal to a second value.
The first node according to claim 1 is characterized in that the first domain set includes a first domain and a second domain; when the third condition is met, the PDCCH confirmation of the scheduling release corresponding to the first codeword corresponding to the first semi-continuous transmission and the PDCCH confirmation of the scheduling release corresponding to the second codeword are both completed; when the fourth condition is met, only the PDCCH confirmation of the scheduling release corresponding to the second codeword in the first codeword group corresponding to the first semi-continuous transmission is completed; the third condition includes that the first domain and the second domain included in the first domain set are equal to the first value and the second value respectively; the fourth condition includes that the first domain included in the first domain set is equal to the first value and the second domain is not equal to the second value.
The first node according to any one of claims 1 to 3, characterized in that the second codeword is predefined in the first codeword group, or high-layer signaling is used to determine the second codeword from the first codeword group.
The first node according to any one of claims 1 to 4 is characterized in that the first signaling includes a target field, the target field is used to indicate a first index set, the first index set includes a first index, the first semi-continuous transmission configured by the first information block is associated with the first index; the first index set is associated with K1 semi-continuous transmissions, and the first signaling is used to release the scheduling corresponding to at least one codeword in the first codeword group corresponding to any half-continuous transmission of the K1 semi-continuous transmissions.
The first node according to any one of claims 1 to 5, characterized by comprising:

a first transceiver that abandons operating at least a second signal among the first signal and the second signal;

In which, the operation is receiving or the operation is sending, the first semi-continuous transmission configured by the first information block includes the first signal and the second signal, the first signal corresponds to the first codeword, and the second signal corresponds to the second codeword; when the first signaling is used to release the scheduling corresponding to only the second codeword in the first codeword group corresponding to the first semi-continuous transmission, the first node operates the first signal and gives up operating the second signal; when the first signaling is used to release the scheduling corresponding to the first codeword and the scheduling corresponding to the second codeword corresponding to the first semi-continuous transmission, the first node gives up operating the first signal and gives up operating the second signal.
The first node according to any one of claims 1 to 6, characterized by comprising:

A first receiver receives a second signaling, where the second signaling is used to activate scheduling corresponding to the first codeword and scheduling corresponding to the second codeword corresponding to the first semi-persistent transmission;

The second signaling includes a third field, the third field included in the second signaling is of the same type as one of the fields in the first field set, and the third field is used for scheduling activation PDCCH confirmation for both the first codeword and the second codeword.
A second node used for wireless communication, characterized by comprising:

A first transmitter sends a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

A second transceiver sends a first signaling, where the first signaling is used to release the scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

The first signaling includes a first domain set, and the first domain set is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission; the first domain set is associated with the first codeword word and the second code word.
A method in a first node for wireless communication, comprising:

receiving a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

receiving a first signaling, where the first signaling is used to release scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

The first signaling includes a first domain set, which is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.
A method used in a second node of wireless communication, characterized by comprising:

Sending a first information block, where the first information block is used to configure a first semi-persistent transmission, where the first semi-persistent transmission corresponds to a first codeword group, where the first codeword group includes a first codeword and a second codeword;

Sending a first signaling, where the first signaling is used to release scheduling corresponding to at least the second codeword in the first codeword group corresponding to the first semi-persistent transmission;

The first signaling includes a first domain set, which is used for PDCCH confirmation of scheduling release corresponding to at least the second codeword in the first codeword group corresponding to the first semi-continuous transmission; the first domain set is associated with the first codeword and the second codeword.