CN108023668B - Method and device for data transmission in wireless communication system - Google Patents

Method and device for data transmission in wireless communication system Download PDF

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Publication number
CN108023668B
CN108023668B CN201610962816.1A CN201610962816A CN108023668B CN 108023668 B CN108023668 B CN 108023668B CN 201610962816 A CN201610962816 A CN 201610962816A CN 108023668 B CN108023668 B CN 108023668B
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dynamic configuration
signaling
reporting type
identifier
information
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CN108023668A (en
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韩玮
吴晔
毕晓艳
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XFusion Digital Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2017/106117 priority patent/WO2018082438A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The application discloses a data transmission method applied to a wireless communication system, the data transmission method comprises generating and sending a dynamic configuration signaling for reporting Channel State Information (CSI), the dynamic configuration signaling is sent through a physical layer or a Medium Access Control (MAC) layer, and the dynamic configuration signaling comprises at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting. The application also provides a corresponding data transmission device, and compared with the dynamic signaling configuration through the RRC layer signaling, the method provides a more flexible and configurable dynamic signaling configuration mechanism.

Description

Method and device for data transmission in wireless communication system
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for data transmission in a wireless communication system.
Background
With the wide deployment of Long Term Evolution (LTE) networks, the requirement of users for wireless data services is met, and the industry starts to promote the standardization of the next generation wireless communication system (5G). Among them, multi-user Multiple Input Multiple Output (MIMO) is a key technology of LTE and future 5G systems. The measurement and reporting of Channel State Information (CSI) is very important for LTE and 5G systems using MIMO.
The configuration related to the CSI measurement reporting of the current LTE system is completely finished through RRC signaling, and belongs to semi-static configuration. The period of its configuration update is on the order of tens to hundreds of milliseconds. The next generation wireless communication system (5G) requires smaller time delay, and the period of configuration update in the current LTE system cannot meet the requirement of the 5G system on the time delay.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a method and apparatus for data transmission in a wireless communication system, which is used to provide a more flexibly configurable dynamic signaling configuration mechanism.
In a first aspect, an embodiment of the present invention provides a method for data transmission, where the method is applied to a wireless communication system, and the method includes: generating and sending a dynamic configuration signaling for reporting Channel State Information (CSI), wherein the dynamic configuration signaling comprises at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting; the dynamic configuration signaling is sent through a physical layer or a Medium Access Control (MAC) layer. The data transmission method is executed by a base station, and the base station sends dynamic configuration signaling to the UE.
In one possible design, the dynamic configuration signaling further includes at least one of the following information: the dynamic configuration identification of the reference signal RS and the codebook-related dynamic configuration information.
In one possible design, the RRC layer configuration for CSI reporting includes at least one of the following information: a subframe set, Trigger frame configuration, a subframe period and subframe offset.
In one possible design, the CSI reporting type includes at least one of: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating the CSI reporting type and a beam related reporting type.
In one possible design, the dynamic configuration identifier of the RS indicates a dynamic configuration of the RS to be employed, and the dynamic configuration of the RS includes at least one of the following information: the dynamic configuration identifier of the RS, the identifier of the RRC layer configuration of the RS, the identifier of the RS resource set and the identifier of the RS resource.
In one possible design, the identification of the RRC layer configuration of the RS indicates the RRC layer configuration of the RS employed, and the RRC layer configuration of the RS includes at least one of the following information: one or more RS resource sets, a configuration of an RS pattern, a subframe period for transmitting the RS, and a subframe offset.
In one possible design, the codebook-related dynamic configuration information includes at least one of: codebook information for PMI reporting, codebook information for explicit CSI reporting and codebook information for beam-related reporting.
In one possible design, the dynamic configuration signaling is sent through a physical layer, specifically: and the dynamic configuration signaling is sent through the downlink control information of the physical layer.
In one possible design, the dynamic configuration signaling is sent through a MAC layer, specifically: the dynamic configuration signaling is sent through a MAC control element.
In a second aspect, an embodiment of the present invention provides a data transmission method, which is applied to a wireless communication system, and the method includes: receiving and analyzing dynamic configuration signaling, wherein the dynamic configuration signaling comprises at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting, the dynamically configuring signaling is carried by a physical layer or a Medium Access Control (MAC) layer, and the data transmission method is executed by UE.
In one possible design, the dynamic configuration signaling further includes at least one of the following information: identification of dynamic configuration of reference signal RS and codebook related dynamic configuration information.
In a third aspect, an embodiment of the present invention provides an apparatus for data transmission, where the apparatus is applied to a wireless communication system, and the apparatus includes:
a baseband processor, configured to generate a dynamic configuration signaling for reporting channel state information CSI, where the dynamic configuration signaling includes at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting;
and the transceiver is used for sending the dynamic configuration signaling, and the dynamic configuration signaling is sent through a physical layer or a Medium Access Control (MAC) layer.
In one possible design, the dynamic configuration signaling further includes at least one of the following information: the dynamic configuration identification of the reference signal RS and the codebook-related dynamic configuration information.
In one possible design, the RRC layer configuration for CSI reporting includes at least one of the following information: a subframe set, Trigger frame configuration, a subframe period and subframe offset.
In one possible design, the CSI reporting type includes at least one of: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating the CSI reporting type and a beam related reporting type.
In one possible design, the dynamic configuration identifier of the RS indicates a dynamic configuration of the RS to be employed, and the dynamic configuration of the RS includes at least one of the following information: the dynamic configuration identifier of the RS, the identifier of the RRC layer configuration of the RS, the identifier of the RS resource set and the identifier of the RS resource.
In one possible design, the identification of the RRC layer configuration of the RS indicates the RRC layer configuration of the RS employed, and the RRC layer configuration of the RS includes at least one of the following information: one or more RS resource sets, a configuration of an RS pattern, a subframe period for transmitting the RS, and a subframe offset.
In one possible design, the codebook-related dynamic configuration information includes at least one of: codebook information for PMI reporting, codebook information for explicit CSI reporting and codebook information for beam-related reporting.
In one possible design, the dynamic configuration signaling is sent through a physical layer, specifically: and the dynamic configuration signaling is sent through the downlink control information of the physical layer.
In one possible design, the dynamic configuration signaling is sent through a MAC layer, specifically: the dynamic configuration signaling is sent through a MAC control element.
In a fourth aspect, an embodiment of the present invention provides an apparatus for data transmission, where the apparatus is applied to a wireless communication system, and the apparatus includes:
a transceiver configured to receive dynamic configuration signaling, the dynamic configuration signaling including at least one of: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting;
and the baseband processor is used for analyzing the dynamic configuration signaling, and the dynamic configuration signaling is carried by a physical layer or a Medium Access Control (MAC) layer. In that
In one possible design, the dynamic configuration signaling further includes at least one of the following information: identification of dynamic configuration of reference signal RS and codebook related dynamic configuration information.
In summary, the present application provides a data transmission method and apparatus applied in a wireless communication system, where the data transmission method includes generating and sending a dynamic configuration signaling for reporting channel state information CSI, where the dynamic configuration signaling is sent through a physical layer or a medium access control MAC layer, and the dynamic configuration signaling includes at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting. Through the mode, compared with the dynamic signaling configuration through RRC layer signaling, a more flexible and configurable dynamic signaling configuration mechanism is provided.
Drawings
Fig. 1 is an application scenario diagram of the present application.
Fig. 2 is a flowchart illustrating a first embodiment of the present application.
Fig. 3 is a schematic diagram of a dynamic configuration signaling structure according to the present application.
Fig. 4 is a schematic diagram of an RRC layer configuration structure for CSI reporting according to the present application.
Fig. 5 is a schematic structural diagram of a reference signal RS according to the present application.
Fig. 6 is a schematic diagram of an RRC layer configuration structure of an RS according to the present application.
Fig. 7 is a flowchart illustrating a second embodiment of the present application.
Fig. 8 is a block diagram of an entity structure of a three base station according to an embodiment of the present invention.
Fig. 9 is a block diagram of an entity structure of a UE according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, specific embodiments of the present application are described in further detail below with reference to the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application.
The embodiments of the present application can also be applied to a cellular communication system, where the cellular communication system generally includes cells, each cell includes a Base Station (BS), and the Base Station provides a communication service to a User Equipment (UE), where the Base Station is connected to a core network device, as shown in fig. 1.
It should be noted that, the cellular communication systems mentioned in the embodiments of the present application include, but are not limited to: narrowband Band-Internet of Things (NB-IoT), Global System for Mobile Communications (GSM), Enhanced Data rate GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access 2000 (Code Division Multiple Access, TD-SCDMA), Long Term Evolution (LTE), and Mobile communication (5G).
In the embodiment of the present application, the base station is an apparatus deployed in a radio access network to provide a wireless communication function for a UE. The base stations may include various forms of macro base stations, micro base stations (also referred to as small stations), relay stations, access points, and the like. In systems using different radio access technologies, the name of a device having a base station function may be different, for example, in an LTE system, the device is called an evolved Node B (eNB or eNodeB), and in a third Generation (3 rd Generation, abbreviated as 3G) system, the device is called a Node B (english: Node B). For convenience of description, in all embodiments of the present application, the above-mentioned apparatuses providing a UE with a wireless communication function are collectively referred to as a base station or a BS.
The UE referred to in the embodiments of the present application may include various handheld devices, vehicle mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication capabilities. The UE may also be referred to as a Mobile Station (MS), a terminal (terminal), and a terminal device (terminal equipment), and may further include a subscriber unit (subscriber unit), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data card, a Personal Digital Assistant (PDA) computer, a tablet computer, a wireless modem (modem), a handheld device (handset), a laptop computer (laptop computer), a Machine Type Communication (MTC) terminal, and the like. For convenience of description, in all embodiments of the present application, the above-mentioned devices are collectively referred to as a UE.
Example 1
Embodiment 1 of the present application provides a data transmission method applied to a wireless communication system, where the method may be applied to a base station, for example: the base station in fig. 1. Fig. 2 is a flowchart of the data transmission method, which includes the following specific steps:
step 201: generating a dynamic configuration signaling for reporting Channel State Information (CSI), wherein the dynamic configuration signaling comprises at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting.
Step 202: and sending the dynamic configuration signaling, wherein the dynamic configuration signaling is sent through a physical layer or a Medium Access Control (MAC) layer.
Optionally, the dynamic configuration signaling further includes at least one of the following information: the dynamic configuration identification of the reference signal RS and the codebook-related dynamic configuration information.
It should be noted that the structure of the dynamic configuration signaling is shown in fig. 3. It should be added that the dynamic configuration signaling also includes other data, which is not listed here.
Further optionally, the first identifier indicates radio resource control, RRC, layer configuration for CSI reporting. And the RRC layer configuration for reporting the CSI is sent to the UE by the base station, and the sending time is before the base station generates a dynamic configuration signaling for the CSI.
Radio Resource Control (RRC) signaling belongs to Layer3 (Layer3) signaling, which is typically some Control messages, and L3 signaling may be typically carried in the frame body of the Layer two frame. The transmission period or control period of the L3 signaling is usually long, and is suitable for transmitting some information which does not change frequently.
A structure diagram of the RRC layer configuration for CSI reporting is shown in fig. 4, where the RRC layer configuration for CSI reporting includes at least one of the following information: a subframe set, Trigger frame configuration, a subframe period and subframe offset. It should be added that the RRC configuration for CSI reporting further includes other data, which is not listed here.
Further optionally, the CSI reporting type in the dynamic configuration signaling includes at least one of: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating the CSI reporting type and a beam related reporting type.
Further optionally, the dynamic configuration identifier of the RS in the dynamic configuration signaling indicates the dynamic configuration of the RS, the structure of the dynamic configuration of the RS is shown in fig. 5, and the dynamic configuration of the RS includes at least one of the following information: the dynamic configuration identifier of the RS, the identifier of the RRC layer configuration of the RS, the identifier of the RS resource set and the identifier of the RS resource. It should be added that the dynamic configuration of the RS also includes other data, which is not enumerated herein.
The identifier of the RS resource set is used for indicating one RS resource set from a plurality of RS resource sets, and the RS resource set comprises one or more RS resources which are common to a group of users.
Wherein the identification of RS resources is used to select one or more RS resources from the selected set of RS resources.
The identifier of the RRC layer configuration of the RS indicates the RRC layer configuration of the RS, and the structure of the RRC layer configuration of the RS is as shown in fig. 6.
The RRC layer configuration of the RS includes at least one of the following information: one or more RS resource sets, a configuration of an RS pattern, a subframe period for transmitting the RS, and a subframe offset.
It should be noted that the RRC layer configuration of the RS is sent to the UE by the base station, and the sending time is before the base station generates the dynamic configuration signaling for the CSI.
Further optionally, the codebook-related dynamic configuration information in the dynamic configuration signaling includes at least one of the following information: codebook information for PMI reporting, codebook information for explicit CSI reporting and codebook information for beam-related reporting.
Optionally, the dynamic configuration signaling is sent through a physical layer, specifically: the dynamic configuration signaling is sent through the downlink control information of the physical layer. In particular, physical Layer signaling, also referred to as Layer 1 (L1) signaling, may be typically carried by a control portion in a physical Layer frame. A typical example of the L1 signaling is Downlink Control Information (DCI) carried in a Physical Downlink Control Channel (PDCCH) defined in the LTE standard. In some cases, the L1 signaling may also be carried by the data portion in the physical layer frame. It is obvious that the sending period or signaling period of the L1 signaling is usually the period of the physical layer frame, so this signaling is usually used to implement some dynamic control to deliver some information with frequent changes.
Optionally, the dynamic configuration signaling is sent through a MAC layer, specifically: the dynamic configuration signaling is sent through the MAC control element. Media Access Control (MAC) Layer signaling belongs to Layer 2 signaling, which may be generally carried by, for example and without limitation, a header of a second Layer frame or a Control Element (CE). The header may also carry information such as, but not limited to, a source address and a destination address. In addition to the frame header, the second layer frame typically contains a frame body. In some cases, the L2 signaling may also be carried by the frame body of the second layer frame, which may typically be carried in the data portion of the physical layer frame.
To summarize, embodiment 1 of the present application provides a data transmission method applied in a wireless communication system, where the data transmission method includes generating and sending a dynamic configuration signaling for reporting channel state information CSI, where the dynamic configuration signaling is sent through a physical layer or a medium access control MAC layer, and the dynamic configuration signaling includes at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting. Through the mode, compared with the dynamic signaling configuration through RRC layer signaling, a more flexible and configurable dynamic signaling configuration mechanism is provided.
Example 2
Embodiment 2 of the present application provides a data transmission method applied to a wireless communication system, where the method may be applied to a user terminal, for example: UE1 and UE2 in fig. 1. Fig. 7 is a flowchart of the data transmission method, which includes the following specific steps:
step 701: receiving dynamic configuration signaling, the dynamic configuration signaling comprising at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting.
Step 702: and analyzing the dynamic configuration signaling, wherein the dynamic configuration signaling is carried by a physical layer or a Medium Access Control (MAC) layer.
The user terminal obtains a first identifier by analyzing the dynamic setting signaling, and obtains specific information of Radio Resource Control (RRC) layer configuration for CSI reporting through the first identifier.
Optionally, the dynamic configuration signaling further includes at least one of the following information: identification of dynamic configuration of reference signal RS and codebook related dynamic configuration information.
The user terminal obtains the identifier of the dynamic configuration of the reference signal RS by analyzing the dynamic setting signaling, and obtains the specific information of the dynamic configuration of the RS and the RRC layer configuration information of the RS by the identifier of the dynamic configuration of the reference signal RS.
It should be noted that the dynamic configuration signaling is used for RRC layer configuration for CSI reporting, and the dynamic configuration of the reference signal RS and the RRC layer configuration of the RS are described in detail in embodiment 1, and are not described again.
In summary, embodiment 2 of the present application provides a data transmission method applied in a wireless communication system, where the data transmission method includes receiving and parsing dynamic configuration signaling, where the dynamic configuration signaling is carried by a physical layer or a medium access control MAC layer, and the dynamic configuration signaling includes at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting.
Example 3
Embodiment 3 of the present Application provides a device for data transmission in a wireless communication system, where a physical structure of the device is shown in fig. 8, the device may be a base station shown in fig. 1, and the device may also be an Application Specific Integrated Circuit (ASIC) or a chip that implements related functions. The device 1000 includes a processor 1010, a memory 1020, a baseband processor 1030, a transceiver 1040, an antenna 1050, a bus 1060, and an I/O interface 1070.
In particular, the operation of the apparatus 1000 is controlled by a processor 1010, which may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic device. Memory 1020 may include read-only memory and random access memory, and provide instructions and data to processor 1010, and a portion of memory 1020 may also include non-volatile random access memory (NVRAM).
The baseband processor 1030 is configured to generate a baseband signal (e.g., a frame or a data packet or a PPDU or dynamic configuration signaling in this application), or parse a received baseband signal to obtain useful information, where the baseband processor includes a channel encoder and a modulator, and the channel encoder can improve robustness of the baseband signal, overcome interference and fading in a wireless propagation environment, and reduce errors generated by transmission. The modulator can select a suitable signal modulation mode according to the wireless propagation environment.
The transceiver 1040 includes a transmitting circuit and a receiving circuit, the transmitting circuit is configured to perform an up-conversion operation on a baseband signal generated by the baseband processor 1030 to obtain a high-frequency carrier signal, the high-frequency carrier signal is transmitted through the antenna 1050, and the receiving circuit performs a down-conversion operation on a high-frequency signal received by the antenna 1050 to obtain a low-frequency baseband signal. Where the number of antennas 1050 is one or more. The apparatus 1000 may further comprise an I/O interface 1070, the I/O interface 1070 comprising an input output device such as a keyboard, microphone and/or touch screen. The user interface 1070 may deliver content and control operations to the access point 1000.
The various components of device 1000 are coupled together by a bus 1060, where bus system 1060 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are designated as the bus system 1060 in the figure. It should be noted that the above description of the access point structure can be applied to the following embodiments.
A baseband processor 1030, configured to generate a dynamic configuration signaling for reporting channel state information CSI, where the dynamic configuration signaling includes at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting.
A transceiver 1040, configured to send the dynamic configuration signaling, where the dynamic configuration signaling is sent through a physical layer or a medium access control MAC layer.
Optionally, a dynamic configuration identifier of the reference signal RS and codebook-related dynamic configuration information.
Specifically, the dynamic configuration signaling may be sent through a physical layer, specifically: the dynamic configuration signaling is sent through the downlink control information of the physical layer.
Specifically, the dynamic configuration signaling may also be sent through the MAC layer, specifically: the dynamic configuration signaling is sent through the MAC control element.
It should be noted that the dynamic configuration signaling is used for RRC layer configuration for CSI reporting, and the dynamic configuration of the reference signal RS and the RRC layer configuration of the RS are generated by the baseband processor 1030, and the structures of the 4 signaling are described in detail in embodiment 1 and are not described again.
To summarize, embodiment 3 of the present application provides a data transmission apparatus applied in a wireless communication system, where a baseband processor of the data transmission apparatus generates dynamic configuration signaling for CSI reporting, a transceiver of the data transmission apparatus transmits the dynamic configuration signaling for CSI reporting, the dynamic configuration signaling is transmitted through a physical layer or a medium access control MAC layer, and the dynamic configuration signaling includes at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting. Through the mode, compared with the dynamic signaling configuration through RRC layer signaling, a more flexible and configurable dynamic signaling configuration mechanism is provided.
Example 4
Embodiment 4 of the present Application provides a device for data transmission in a wireless communication system, where a physical structure of the device is shown in fig. 9, the device may be the UE shown in fig. 1, and the device may also be an Application Specific Integrated Circuit (ASIC) or a chip that implements related functions. The apparatus 1100 includes a processor 1110, a memory 1120, a baseband processor 1130, a transceiver 1140, an antenna 1150, a bus 1160, and an I/O interface 1170. The structure and function of each component of the device 1100 are explained in detail in embodiment 3, and are not described in detail.
A transceiver 1140 for receiving dynamic configuration signaling, the dynamic configuration signaling comprising at least one of: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting.
A baseband processor 1130, configured to parse the dynamic configuration signaling, where the dynamic configuration signaling is carried by a physical layer or a medium access control MAC layer.
The baseband processor obtains a first identifier by analyzing the dynamic setting signaling, and obtains specific information of Radio Resource Control (RRC) layer configuration for CSI reporting through the first identifier.
Optionally, the dynamic configuration signaling received by the transceiver further includes at least one of the following information: identification of dynamic configuration of reference signal RS and codebook related dynamic configuration information.
The baseband processor obtains the identifier of the dynamic configuration of the reference signal RS by analyzing the dynamic setting signaling, and obtains the specific information of the dynamic configuration of the RS and the RRC layer configuration information of the RS by the identifier of the dynamic configuration of the reference signal RS.
It should be noted that the dynamic configuration signaling is used for RRC layer configuration for CSI reporting, and the dynamic configuration of the reference signal RS and the RRC layer configuration of the RS are described in detail in embodiment 1, and are not described again.
In summary, the embodiment 4 of the present application provides an apparatus for data transmission in a wireless communication system, where the apparatus includes a transceiver for receiving dynamic configuration signaling, and a parser for parsing the dynamic configuration signaling, where the dynamic configuration signaling is carried by a physical layer or a medium access control MAC layer, and the dynamic configuration signaling includes at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be substantially implemented or a part of the technical solutions contributing to the prior art may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a hard disk, or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

Claims (23)

1. A method for data transmission in a wireless communication system, the method comprising:
generating a dynamic configuration signaling for reporting Channel State Information (CSI), wherein the dynamic configuration signaling comprises at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting; the CSI reporting type comprises at least one of the following types: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating an explicit CSI (channel state information) reporting type and a beam related reporting type;
and sending the dynamic configuration signaling, wherein the dynamic configuration signaling is sent through a physical layer or a Medium Access Control (MAC) layer.
2. The method of claim 1, wherein the dynamic configuration signaling further comprises at least one of the following information: the dynamic configuration identification of the reference signal RS and the codebook-related dynamic configuration information.
3. The method according to claim 1 or 2, wherein the RRC layer configuration for CSI reporting includes at least one of the following information: a subframe set, Trigger frame configuration, a subframe period and subframe offset.
4. The method according to claim 1 or 2, wherein the CSI reporting type comprises at least one of: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating the CSI reporting type and a beam related reporting type.
5. The method of claim 2, wherein the dynamic configuration identifier of the RS indicates a dynamic configuration of the RS to be adopted, and wherein the dynamic configuration of the RS comprises at least one of the following information: the dynamic configuration identifier of the RS, the identifier of the RRC layer configuration of the RS, the identifier of the RS resource set and the identifier of the RS resource.
6. The method of claim 5, wherein the identification of the RRC layer configuration of the RS indicates the RRC layer configuration of the RS employed, and wherein the RRC layer configuration of the RS comprises at least one of the following information: one or more RS resource sets, a configuration of an RS pattern, a subframe period for transmitting the RS, and a subframe offset.
7. The method of claim 2, wherein the codebook-related dynamic configuration information comprises at least one of the following information: codebook information for PMI reporting, codebook information for explicit CSI reporting and codebook information for beam-related reporting.
8. The method according to claim 1, wherein the dynamic configuration signaling is sent through a physical layer, specifically: and the dynamic configuration signaling is sent through the downlink control information of the physical layer.
9. The method according to claim 1, wherein the dynamic configuration signaling is sent through a MAC layer, specifically: the dynamic configuration signaling is sent through a MAC control element.
10. A data transmission method applied to a wireless communication system, the method comprising:
receiving dynamic configuration signaling, the dynamic configuration signaling comprising at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting; wherein the CSI reporting type includes at least one of: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating an explicit CSI (channel state information) reporting type and a beam related reporting type;
and analyzing the dynamic configuration signaling, wherein the dynamic configuration signaling is carried by a physical layer or a Medium Access Control (MAC) layer.
11. The method of claim 10, wherein the dynamic configuration signaling further comprises at least one of the following information: identification of dynamic configuration of reference signal RS and codebook related dynamic configuration information.
12. An apparatus for data transmission in a wireless communication system, the apparatus comprising:
a baseband processor, configured to generate a dynamic configuration signaling for reporting channel state information CSI, where the dynamic configuration signaling includes at least one of the following information: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting; wherein the CSI reporting type includes at least one of: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating an explicit CSI (channel state information) reporting type and a beam related reporting type;
and the transceiver is used for sending the dynamic configuration signaling, and the dynamic configuration signaling is sent through a physical layer or a Medium Access Control (MAC) layer.
13. The apparatus of claim 12, wherein the dynamic configuration signaling further comprises at least one of the following information: the dynamic configuration identification of the reference signal RS and the codebook-related dynamic configuration information.
14. The apparatus of claim 12 or 13, wherein the RRC layer configuration for CSI reporting comprises at least one of the following information: a subframe set, Trigger frame configuration, a subframe period and subframe offset.
15. The apparatus of claim 12 or 13, wherein the CSI reporting type comprises at least one of: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating the CSI reporting type and a beam related reporting type.
16. The apparatus of claim 13, wherein the dynamic configuration identifier of the RS indicates a dynamic configuration of the RS to be employed, and wherein the dynamic configuration of the RS comprises at least one of the following information: the dynamic configuration identifier of the RS, the identifier of the RRC layer configuration of the RS, the identifier of the RS resource set and the identifier of the RS resource.
17. The apparatus of claim 16, wherein the identification of the RRC layer configuration of the RS indicates the RRC layer configuration of the RS employed, and wherein the RRC layer configuration of the RS comprises at least one of: one or more RS resource sets, a configuration of an RS pattern, a subframe period for transmitting the RS, and a subframe offset.
18. The apparatus of claim 13, wherein the codebook-related dynamic configuration information comprises at least one of the following information: codebook information for PMI reporting, codebook information for explicit CSI reporting and codebook information for beam-related reporting.
19. The apparatus according to claim 12, wherein the dynamic configuration signaling is sent through a physical layer, specifically: and the dynamic configuration signaling is sent through the downlink control information of the physical layer.
20. The apparatus according to claim 12, wherein the dynamic configuration signaling is sent through a MAC layer, specifically: the dynamic configuration signaling is sent through a MAC control element.
21. An apparatus for data transmission in a wireless communication system, the apparatus comprising:
a transceiver configured to receive dynamic configuration signaling, the dynamic configuration signaling including at least one of: the method comprises the steps of dynamically configuring an identifier of a signaling, a first identifier and a CSI reporting type, wherein the first identifier indicates the configuration of a Radio Resource Control (RRC) layer for CSI reporting; wherein the CSI reporting type includes at least one of: the method comprises the following steps of indicating a CQI (channel quality indicator) reporting type, indicating a PMI (precoding matrix indicator) reporting type by a precoding matrix, indicating an RI (channel rank indicator) reporting type by a channel rank, and indicating an explicit CSI (channel state information) reporting type and a beam related reporting type;
and the baseband processor is used for analyzing the dynamic configuration signaling, and the dynamic configuration signaling is carried by a physical layer or a Medium Access Control (MAC) layer.
22. The apparatus of claim 21, wherein the dynamic configuration signaling further comprises at least one of the following information: identification of dynamic configuration of reference signal RS and codebook related dynamic configuration information.
23. A storage medium characterized in that,
the storage medium stores a computer program, wherein the computer program is capable of implementing the method of any one of claims 1 to 11 when executed by a computer device.
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