CN-122029749-A - Indication method and device for channel state information reporting configuration

CN122029749ACN 122029749 ACN122029749 ACN 122029749ACN-122029749-A

Abstract

The embodiment of the application provides an indication method and device for channel state information reporting configuration, wherein the method comprises the steps of receiving channel state information reporting configuration from network equipment, wherein the channel state information reporting configuration at least comprises feedback quantity of the channel state information, the feedback quantity is not configured into cri-RI-CQI, and/or the channel state information reporting configuration does not comprise a sub-configuration list, and/or the channel state information reporting configuration does not comprise precoding matrix indicating antenna port indicating information, and/or the sub-configuration in the sub-configuration list in the channel state information reporting configuration is not configured with antenna port subset indicating information, and/or the sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indicating information, and activated antenna ports related to the sub-configuration are related to the precoding matrix indicating antenna port indicating information, and/or the sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with-CSI-RS resource list.

Inventors

ZHU JING
ZHANG LEI
LU YIWEN
CHENG HUITING

Assignees

壹泛尼提株式会社

Dates

Publication Date: 20260512
Application Date: 20230928

Claims (20)

An indication device for reporting configuration of channel state information, comprising: A first receiving unit that receives a channel state information reporting configuration from a network device, the channel state information reporting configuration including at least a feedback amount (report quality) of channel state information; The feedback amount is not configured as cri-RI-CQI, and/or, The channel state information reporting configuration does not include precoding matrix indicator (non-PMI) antenna port indicator information (non-PMI-PortIndication).
The apparatus of claim 1, wherein the channel state information reporting configuration further comprises a list of sub-configurations; The feedback quantity is not configured to be the cri-RI-CQI, and/or the channel state information reporting configuration does not include the PMI-free antenna port indication information.
The apparatus of claim 1, wherein the channel state information reporting configuration further comprises a sub-configuration list, and antenna port subset indication information corresponding to a sub-configuration in the sub-configuration list; The feedback quantity is not configured to be the cri-RI-CQI, and/or the channel state information reporting configuration does not include the PMI-free antenna port indication information.
The apparatus of claim 1, wherein the channel state information reporting configuration further comprises a list of sub-configurations; The feedback amount is configured as 'cri-RI-PMI-CQI' or 'cri-RI-i1' or 'cri-RI-i1-CQI' or 'cri-RI-LI-PMI-CQI'.
The apparatus of claim 1, wherein the channel state information reporting configuration further comprises a sub-configuration list, and antenna port subset indication information corresponding to a sub-configuration in the sub-configuration list; The feedback amount is configured as 'cri-RI-PMI-CQI' or 'cri-RI-i1' or 'cri-RI-i1-CQI' or 'cri-RI-LI-PMI-CQI'.
An indication device for reporting configuration of channel state information, comprising: the first receiving unit is used for receiving channel state information reporting configuration from the network equipment, wherein the channel state information reporting configuration at least comprises feedback quantity of the channel state information; The channel state information reporting configuration does not include a list of sub-configurations, and/or, The sub-configurations in the sub-configuration list in the channel state information reporting configuration are not configured with antenna port subset indication information, which is used for indicating activated antenna ports related to the sub-configurations, and/or, The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information for indicating activated antenna ports related to the sub-configuration, the activated antenna ports related to the sub-configuration are related to non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication), and/or, And configuring a CSI-RS resource list by the sub-configuration in the sub-configuration list in the channel state information reporting configuration.
The apparatus of claim 6, wherein the feedback amount is configured to cri-RI-CQI and/or the channel state information reporting configuration further comprises the PMI-free antenna port indication information; the channel state information reporting configuration does not include the sub-configuration list.
The apparatus of claim 6, wherein the feedback amount is configured to cri-RI-CQI and/or the channel state information reporting configuration further comprises the PMI-free antenna port indication information, the channel state information reporting configuration further comprising the sub-configuration list; The sub-configuration in the sub-configuration list is not configured with antenna port subset indication information, or the sub-configuration in the sub-configuration list is configured with a CSI-RS resource list, or the sub-configuration is configured with antenna port subset indication information, and activated antenna ports related to the sub-configuration are related to non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication).
The apparatus of claim 1 or 6, wherein the apparatus further comprises: A first transmitting unit that transmits capability information for indicating whether a terminal device supports or does not support being configured with the PMI-free antenna port indication information, and/or, NonPMI (PMI-free) CSI feedback is supported or not, and/or, The configured sub-configuration list is supported or not supported.
An indication device of channel state information reporting configuration, applied to a terminal device, comprises: A first receiving unit, configured to receive a channel state information reporting configuration from a network device, where the channel state information reporting configuration at least includes a sub-configuration list; and the first sending unit calculates CQI and/or RI according to a first port index sequence and reports the CQI and/or RI, wherein the first port index sequence is related to the sub-configuration in the sub-configuration list.
The apparatus of claim 10, wherein the reporting configuration further comprises a feedback amount configured as cri-RI-CQI.
The apparatus of claim 10, wherein the first receiving unit is further configured to receive a CSI-RS resource configuration, the reporting configuration further comprises antenna port subset indication information corresponding to a sub-configuration in the sub-configuration list, the antenna port subset indication information being configured to indicate a subset of antenna ports related to the sub-configuration, the antenna ports in the subset of antenna ports being activated ones of the antenna ports configured in the CSI-RS resource configuration for channel measurement associated with the reporting configuration.
The apparatus of any of claims 10 to 12, wherein the first port index sequence comprises at least v antenna port indexes of rank v, where v is a positive integer greater than 0, and a maximum value of v is a total number of antenna ports in the antenna port subset associated with the sub-configuration.
The apparatus of claim 12, wherein the first port index sequence is indicated by RRC signaling and/or determined by a predefined manner (assume).
The apparatus of claim 14, wherein the RRC signaling comprises first indication information, wherein the first indication information relates to a sub-configuration, the first indication information being used to indicate v antenna ports of a subset of antenna ports related to the sub-configuration as v antenna ports of a rank v in the first port index sequence.
The apparatus of claim 14, wherein v antenna ports of rank v in the first port index sequence are determined (assumed) according to a predefined manner as the first v antenna ports of port indices in a subset of antenna ports associated with the sub-configuration ordered from small to large.
The apparatus of claim 10, wherein the first transmitting unit calculates CQI for rank v using v antenna ports for rank v in the first port index sequence.
The apparatus of claim 10, wherein the first transmitting unit further transmits capability information to the network device, the capability information being used to indicate that the terminal device supports configured PMI-free antenna port indication information and/or supports nonPMI (PMI-free) CSI feedback and/or supports configured the sub-configuration list.
An indication device for reporting configuration of channel state information, comprising: a second transmitting unit, configured to transmit a channel state information reporting configuration to a terminal device, where the channel state information reporting configuration at least includes a feedback amount of the channel state information; The feedback amount is not configured as cri-RI-CQI, and/or, The channel state information reporting configuration does not include precoding matrix indicator (non-PMI) antenna port indicator information.
An indication device for reporting configuration of channel state information, comprising: a second transmitting unit, configured to transmit a channel state information reporting configuration to a terminal device, where the channel state information reporting configuration at least includes a feedback amount of the channel state information; The channel state information reporting configuration does not include a list of sub-configurations, and/or, The sub-configurations in the sub-configuration list in the channel state information reporting configuration are not configured with antenna port subset indication information, which is used for indicating activated antenna ports related to the sub-configurations, and/or, The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information for indicating activated antenna ports related to the sub-configuration, the activated antenna ports related to the sub-configuration are related to non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication), and/or, And configuring a CSI-RS resource list by the sub-configuration in the sub-configuration list in the channel state information reporting configuration.

Description

Indication method and device for channel state information reporting configuration Technical Field The embodiment of the application relates to the technical field of communication. Background As an important component of the construction of new infrastructure worldwide, 5G communication networks have gained rapid development worldwide in recent years. With the construction of 5G and the large-scale commercial use of 5G active antenna processing units (ACTIVE ANTENNA Unit, AAU), energy consumption of the AAU is multiplied due to its larger power consumption compared with 3G and 4G main remote control radio frequency units (Remote Radio Unit, RRU). 5G defines 3 large service types of enhanced mobile broadband (Enhanced Mobile Broadband, eMBB), large-scale Internet of things (MASSIVE MACHINE TYPE of Communication, mMTC) and ultra-reliable low-delay Communication (Ultra Reliable Low Latency Communication, URLLC), so that the bursty service of 5G packets is continuously increased, the base station works continuously for 24 hours, and the daily average energy consumption of 5G sites is twice as much as that of 4G. The 3GPP introduces key technologies such as large-scale antennas (Massive MIMO) and larger radio frequency bandwidth in the 5G era, the 5G supports higher data rate and larger data flow, more transmission bandwidth is needed, and deployment of a high frequency band is also a main frequency band for future expansion of the 5G. The coverage of the station is limited by the high-frequency transmission characteristic, so that the 5G station is densely deployed, and huge operation cost pressure is brought to operators by increasing the energy consumption brought by the station. Therefore, network energy saving has important significance for saving operation cost, and 5G network energy saving is a problem to be solved urgently. In order to achieve energy saving, the network device may perform energy saving processing in terms of time domain, frequency domain, space domain and/or energy domain according to network load conditions. For example, in terms of space domain and energy domain, the network device may turn off part of the antennas when the load is low to achieve the purpose of energy saving, and in terms of time domain, the network device may introduce a cell-level discontinuous transmission/reception technique, so that the network device does not transmit and/or not receive signals during certain sleep periods to achieve the purpose of energy saving. It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present application and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the application section. Disclosure of Invention In the related art, whether uplink or downlink, signal measurement is mainly that a transmitting end transmits a reference signal of a known sequence, and a receiving end solves a channel according to the received sequence. The downlink channel in the new wireless NR is typically measured by a channel state information reference signal (CSI-RS), while the uplink channel is typically measured by an uplink Sounding reference signal (Sounding REFERENCESIGNAL, SRS). For the TDD system, the diversity of the uplink and downlink channels can be used to measure the uplink sounding reference signal to obtain the Channel State Information (CSI) of the downlink channel, i.e. the network side device can calculate the precoding matrix suitable for the terminal device according to the CSI from the terminal device to the network device. Through the precoding, the terminal device can obtain the equivalent channel from the network device to the terminal device according to the measurement, estimate the corresponding other CSI information (such as RI and CQI) and feed back to the network device through the CSI report. However, the inventor finds that, in the existing protocol, based on channel diversity, when the terminal equipment performs CSI report feedback, only RI and CQI can be reported, but Precoding Matrix Indication (PMI) is not reported, but in an energy-saving scene of dynamically adjusting the number of antennas, the CSI reporting function of non PMI (no PMI) cannot be well supported. Therefore, how to configure CSI reporting configuration for a network device in a network energy-saving scenario, and how to perform CSI of a non PMI (PMI-free) for a terminal device are currently urgent problems to be solved. Aiming at least one of the problems, the embodiment of the application provides an indication method and an indication device for reporting configuration of channel state information. According to an aspect of an embodiment of the present application, there is provided an indicating appara