# US 12,114,215 B2 · Method and system for enhancing measurement capability of a terminal device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,114,215 B2 - Document ID: US12114215B2 - Status: Granted - Kind: B2 - Application number: 17/632,079 - Filed: 2020-07-31 - Published: 2022-09-01 - Granted: 2024-10-08 - Earliest claimed: 2019-08-02 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Delai Zheng; Jianhua Yang - Web page: https://patentgrep.com/patent/US12114215B2 ## CPC - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 24/02: Arrangements for optimising operational condition - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 36/0083: {Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists} - H04W 36/0088: {Scheduling hand-off measurements} - H04W 8/24: Transfer of terminal data - H04W 36/00692: {using simultaneous multiple data streams, e.g. cooperative multipoint [CoMP], carrier aggregation [CA] or multiple input multiple output [MIMO] (allocation of physical resources in CoMP or in CA H04L5/0035)} - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A terminal device reports a measurement capability to a network side, and the network side determines, based on the capability of the terminal device and a trigger condition, whether a measurement gap needs to be allocated to the terminal device, where the measurement gap is used by the terminal device to measure an inter-frequency or inter-RAT cell. When the network side allocates the measurement gap to the terminal device, and when the terminal device determines that an objective of not allocating a gap can be achieved by de-configuring a secondary cell or reducing a data receiving rule of a currently camped-on cell. When an inter-frequency or inter-RAT cell is measured by de-configuring the secondary cell or reducing the data receiving rule of the currently camped-on cell, a cell measurement task can be completed. ## Claims ### Claim 1 A method, comprising: sending, by a terminal device, first information to a network device, wherein the first information indicates whether a measurement gap is required when the terminal device performs inter-frequency measurement; camping, by the terminal device, on a first cell and a second cell using a carrier aggregation (CA) technology, wherein the first cell and the second cell are long term evolution (LTE) cells, and the first cell is a primary cell; when the terminal device meets a preset first condition, or when the network device meets a preset second condition, and when it is determined that a measurement gap is required, sending, by the network device, a second message to the terminal device based on the first information, wherein the second message indicates to measure a network parameter of a third cell, and the second message comprises measurement gap information; reporting, by the terminal device, an event A2 of the second cell, wherein the event A2 is specified in a protocol as indicating that a signal quality of a corresponding cell is less than a threshold, and the event A2 enables the network device to de-configure the second cell from being a carrier aggregation cell of the terminal device; and when it is determined that no measurement gap is required, sending, by the network device, a third message to the terminal device, wherein the third message indicates to measure the network parameter of the third cell, and the third message comprises no-gap information. ### Claim 2 (depends on 1) The method according to claim 1, further comprising: measuring, by the terminal device, the network parameter of the third cell based on the third message; and sending, by the terminal device, a measurement report about the third cell to the network device. ### Claim 3 (depends on 2) The method according to claim 2, wherein the preset first condition is that a network parameter of the first cell is less than a preset value, and the preset second condition is that the network device needs to measure a network parameter of a neighboring cell. ### Claim 4 (depends on 1) The method according to claim 1, further comprising: after reporting, by the terminal device, the event A2 of the second cell, sending, by the network device, a fourth message to the terminal device, wherein the fourth message indicates to de-configure the second cell; de-configuring, by the terminal device, the second cell based on the fourth message; and sending, by the terminal device, a fifth message to the network device, wherein the fifth message indicates that the terminal device has de-configured the second cell. ### Claim 5 (depends on 1) The method according to claim 1, wherein the first information comprises at least a InterFreqNeedForGaps parameter or a interRAT-NeedForGaps parameter. ### Claim 6 A network communication system, comprising: a network device; and a terminal device, configured to: camp on a first cell and a second cell using a carrier aggregation (CA) technology, wherein the first cell and the second cell are long term evolution (LTE) cells, and the first cell is a primary cell; send first information to the network device, wherein the first information indicates whether a measurement gap is required when the terminal device performs inter-frequency measurement; and report an event A2 of the second cell when the terminal device meets a preset first condition or when the network device meets a preset second condition, wherein the event A2 is specified in a protocol as indicating that a signal quality of a corresponding cell is less than a threshold, and the event A2 enables the network device to de-configure the second cell from being a carrier aggregation cell of the terminal device; and wherein the network device is configured to: send a second message to the terminal device based on the first information when it is determined that a measurement gap is required, wherein the second message indicates to measure a network parameter of a third cell, and the second message comprises measurement gap information; and send a third message to the terminal device when it is determined that no measurement gap is required, wherein the third message indicates to measure the network parameter of the third cell, and the third message comprises no-gap information. ### Claim 7 (depends on 6) The system according to claim 6, wherein the terminal device is further configured to: measure the network parameter of the third cell based on the third message; and send a measurement report about the third cell to the network device. ### Claim 8 (depends on 7) The system according to claim 7, wherein the preset first condition is that a network parameter of the first cell is less than a preset value, and the preset second condition is that the network device needs to measure a network parameter of a neighboring cell. ### Claim 9 (depends on 6) The system according to claim 6, wherein the network device is further configured to: send a fourth message to the terminal device, wherein the fourth message indicates to de-configure the second cell; and wherein the terminal device is further configured to: de-configure the second cell based on the fourth message; and send a fifth message to the network device, wherein the fifth message indicates that the terminal device has de-configured the second cell. ### Claim 10 (depends on 6) The system according to claim 6, wherein the first information comprises at least a InterFreqNeedForGaps parameter or a interRAT-NeedForGaps parameter. ### Claim 11 A method, comprising: sending, by a terminal device, first information to a network device, wherein the first information indicates whether a measurement gap is required when the terminal device performs inter-frequency measurement; camping, by the terminal device, on a first cell and a second cell using a carrier aggregation (CA) technology, wherein the first cell and the second cell are long term evolution (LTE) cells, and the first cell is a primary cell; sending, by the network device, second information to the terminal device, wherein the second information indicates to measure a network parameter of a third cell, the third cell is a New Radio (NR) cell, and the second information comprises information of the measurement gap; suspending, by the terminal device, data receiving or sending in the second cell when the terminal device finds no third cell during the measurement gap; and measuring, by the terminal device, the network parameter of the third cell. ### Claim 12 (depends on 11) The method according to claim 11, further comprising: sending, by the terminal device, a measurement report to the network device based on the network parameter of the third cell. ### Claim 13 (depends on 12) The method according to claim 12, wherein suspending, by the terminal device, data receiving or sending in the second cell comprises: reducing, by the terminal device, a multiple-input multiple-output capability. ### Claim 14 (depends on 12) The method according to claim 12, wherein that the terminal device finds no third cell during the measurement gap comprises: the terminal device finds no synchronization signal of the third cell in the measurement gap. ### Claim 15 (depends on 11) The method according to claim 11, wherein the second information is sent in a radio resource control (RRC) connection reconfiguration message. ### Claim 16 (depends on 11) The method according to claim 11, wherein measuring, by the terminal device, the network parameter of the third cell comprises: measuring, by the terminal device, the network parameter of the third cell by using a receive channel occupied by the second cell. ### Claim 17 A system, comprising: a terminal device; and a network device; wherein the terminal device is configured to: send first information to the network device, wherein the first information indicates whether a measurement gap is required when the terminal device performs inter-frequency measurement; camping on a first cell and a second cell by using a carrier aggregation (CA) technology, wherein the first cell and the second cell are LTE cells, and the first cell is a primary cell; wherein the network device is configured to: send second information to the terminal device, wherein the second information indicates to measure a network parameter of a third cell, the third cell is a new radio (NR) cell, and the second information comprises information of the measurement gap; suspending, by the terminal device, data receiving or sending in the second cell when the terminal device finds no third cell during the measurement gap; and measuring, by the terminal device, the network parameter of the third cell. ### Claim 18 (depends on 17) The system according to claim 17, wherein the terminal device is further configured to: send a measurement report to the network device based on the network parameter of the third cell. ### Claim 19 (depends on 17) The system according to claim 17, wherein suspending, by the terminal device, data receiving or sending in the second cell comprises: reducing a multiple-input multiple-output capability.