# US 2019/0173532 A1 · Information processing method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0173532 A1 - Document ID: US20190173532A1 - Status: Published application - Kind: A1 - Application number: 16/268,478 - Filed: 2019-02-05 - Published: 2019-06-06 - Earliest claimed: 2016-08-10 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Yong LIU; Xiaoyan BI - Web page: https://patentgrep.com/patent/US20190173532A1 ## CPC - H04B 7/024: Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems - H04B 7/0456: Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting - H04L 5/0023: {Time-frequency-space} - H04L 5/0035: {Resource allocation in a cooperative multipoint environment} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 25/0204: {of multiple channels} - H04L 25/0224: {using sounding signals} - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract An information processing method is provided and applied to a multiple-input multiple-output (MIMO) communications system, where a plurality of data demodulation reference signal ports are allocated to UE, and the method includes: obtaining, in a scheduled time-frequency resource, information about whether the plurality of data demodulation reference signal ports allocated to the UE meet a particular port relationship, where meeting the particular port relationship means that signals sent by using any ports experience same or similar large-scale properties; and sending an indication of the information about whether the particular port relationship is met, so that for at least two data demodulation reference signal ports that meet the particular port relationship, the UE performs channel estimation, frequency offset estimation, or demodulation by using same parameters. ## Claims ### Claim 1 An information processing method, applied to a multiple-input multiple-output (MIMO) communications system, wherein a plurality of data demodulation reference signal ports are allocated to UE, and the method comprises: obtaining, in a scheduled time-frequency resource, information about whether the plurality of data demodulation reference signal ports allocated to the UE meet a particular port relationship; and sending an indication of the information about whether the particular port relationship is met, so that for at least two data demodulation reference signal ports that meet the particular port relationship, the UE performs channel estimation, frequency offset estimation, or demodulation by using same parameters. ### Claim 2 An information processing method, applied to a multiple-input multiple-output (MIMO) communications system, wherein a plurality of data demodulation reference signal ports are allocated to UE, and the method comprises: obtaining, in a scheduled time-frequency resource, information about whether the plurality of data demodulation reference signal ports allocated to the UE meet a particular port relationship; and for at least two data demodulation reference signal ports that meet the particular port relationship, performing, by the UE, channel estimation, frequency offset estimation, or demodulation by using same parameters. ### Claim 3 (depends on 1) The method according to claim 1, comprising: for data demodulation reference signal ports that do not meet the particular port relationship, separately obtaining, by the UE, parameters, and separately performing channel estimation, frequency offset estimation, or demodulation processes by using the different parameters. ### Claim 4 (depends on 1) The method according to claim 1, wherein a network side device performs the method, and the obtaining information about whether the plurality of data demodulation reference signal ports allocated to the UE meet a particular port relationship comprises: performing, in the scheduled time-frequency resource, measurement and determining on the plurality of data demodulation reference signal ports allocated to the UE, to obtain the information about whether the plurality of allocated data demodulation reference signal ports meet the particular port relationship. ### Claim 5 (depends on 2) The method according to claim 2, wherein the UE performs the method, and the obtaining information about whether the plurality of data demodulation reference signal ports allocated to the UE meet a particular port relationship comprises: performing, by the UE in the scheduled time-frequency resource, measurement and determining on the plurality of data demodulation reference signal ports allocated to the UE, to obtain the information about whether the plurality of allocated data demodulation reference signal ports meet the particular port relationship; or receiving, by the UE, an indication that is of the information about whether the particular port relationship is met and that is sent by a network side device. ### Claim 6 (depends on 1) The method according to claim 1, wherein the sending an indication of the information about whether the particular port relationship is met comprises: implicitly sending the indication of the information about whether the particular port relationship is met. ### Claim 7 (depends on 4) The method according to claim 4, wherein the sending an indication of the information about whether the particular port relationship is met comprises: explicitly sending the indication of the information about whether the particular port relationship is met. ### Claim 8 An information processing apparatus, applied to a multiple-input multiple-output MIMO communications system, wherein a plurality of data demodulation reference signal ports are allocated to UE in the system, and the apparatus comprises: a network side obtaining module, configured to obtain, in a scheduled time-frequency resource, information about whether the plurality of data demodulation reference signal ports allocated to the UE meet a particular port relationship, wherein meeting the particular port relationship means that signals sent by using any ports experience same or similar large-scale properties; and a network side indication module, configured to send an indication of the information about whether the particular port relationship is met, so that for at least two data demodulation reference signal ports that meet the particular port relationship, the UE performs channel estimation, frequency offset estimation, or demodulation by using same parameters. ### Claim 9 (depends on 8) The apparatus according to claim 8, wherein the network side obtaining module is configured to perform, in the scheduled time-frequency resource, measurement and determining on the plurality of data demodulation reference signal ports allocated to the UE, to obtain the information about whether the plurality of allocated data demodulation reference signal ports meet the particular port relationship. ### Claim 10 (depends on 9) The apparatus according to claim 9, wherein the network side indication module is configured to implicitly send the indication of the information about whether the particular port relationship is met. ### Claim 11 (depends on 9) The apparatus according to claim 9, wherein the network side indication module is configured to explicitly send the indication of the information about whether the particular port relationship is met. ### Claim 12 An information processing apparatus, applied to a multiple-input multiple-output (MIMO) communications system, wherein a plurality of data demodulation reference signal ports are allocated to UE in the system, and the apparatus comprises: a UE side obtaining module, configured to obtain, in a scheduled time-frequency resource, information about whether the plurality of data demodulation reference signal ports allocated to the UE meet a particular port relationship, wherein meeting the particular port relationship means that signals sent by using any ports experience same or similar large-scale properties; and a UE side processing module, configured to: for at least two data demodulation reference signal ports that meet the particular port relationship, perform channel estimation, frequency offset estimation, or demodulation by using same parameters. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the UE side obtaining module is configured to perform, in the scheduled time-frequency resource, measurement and determining on the plurality of data demodulation reference signal ports allocated to the UE, to obtain the information about whether the plurality of allocated data demodulation reference signal ports meet the particular port relationship. ### Claim 14 (depends on 12) The apparatus according to claim 12, wherein the UE side obtaining module is configured to receive an indication that is of the information about whether the particular port relationship is met and that is sent by a network side device.