Cell measurement in communication systems, related configuration and devices
This application discloses a measurement method for a terminal device, including: receiving measurement configuration information; and measuring, in m measurement windows in a measurement gap based on the measurement configuration information, m groups of to-be-measured signals sent by a network device. Correspondingly, this application also describes a measurement configuration method, a terminal device, and a network device. According to an example implementation, the terminal device discontinuously performs measurement in the measurement windows in the measurement gap, and transmits data by using an interval between the measurement windows, to implement discontinuous measurement in the measurement gap, and further reduce a data transmission delay.
1. A measurement method, comprising:
receiving, by a terminal device, a period of a synchronization signal burst set in a to-be-measured cell, a time offset of the synchronization signal burst set, and a number identifying the synchronization signal burst set in the to-be-measured cell, wherein the period, the time offset, and the number are sent by a network device, and wherein the time offset is a location offset between a synchronization signal burst set identified by the number in a serving cell and the synchronization signal burst set identified by the number in the to-be-measured cell; and
determining, by the terminal device when the period and the time offset are received from the network device, a location of the synchronization signal burst set in the to-be-measured cell based on a period of the synchronization signal burst set in the serving cell, the period of the synchronization signal burst set in the to-be-measured cell, and the time offset; and
measuring, by the terminal device, the to-be-measured cell based on the determined location of the synchronization signal burst set in the to-be-measured cell.
2. The method according to claim 1 , wherein the number is a subframe number and/or a system frame number.
3. The method according to claim 1 , wherein the receiving comprises:
receiving, by the terminal device, a radio resource control (RRC) signaling that is sent by the network device and that carries at least one of the period, the time offset, and the number of the synchronization signal burst set in the to-be-measured cell.
4. A measurement apparatus, comprising a transceiver and a processor, wherein
the transceiver is configured to receive a period of a synchronization signal burst set in a to-be-measured cell, a time offset of the synchronization signal burst set, and a number identifying the synchronization signal burst set in the to-be-measured cell, wherein the period, the time offset, and the number are sent by a network device, and wherein the time offset is a location offset between a synchronization signal burst set identified by the number in a serving cell and the synchronization signal burst set identified by the number in the to-be-measured cell; and
the processor is configured to determine, when the period and the time offset are received from the network device, a location of the synchronization signal burst set in the to-be-measured cell based on a period of the synchronization signal burst set in the serving cell, the period of the synchronization signal burst set in the to-be-measured cell, and the time offset, and measure the to-be-measured cell based on the determined location of the synchronization signal burst set in the to-be-measured cell.
5. The apparatus according to claim 4 , wherein the number is a subframe number and/or a system frame number.
6. The apparatus according to claim 4 , wherein the transceiver is further configured to:
receiving a radio resource control (RRC) signaling that is sent by the network device and that carries at least one of the period, the time offset, and the number of the synchronization signal burst set in the to-be-measured cell.
7. A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores one or more instructions, and when the one or more instructions are run on a computer of a terminal device, the terminal device is enabled to perform operations comprising:
receiving a period of a synchronization signal burst set in a to-be-measured cell, a time offset of the synchronization signal burst set, and a number identifying the synchronization signal burst set in the to-be-measured cell, wherein the period, the time offset and the number are sent by a network device, and wherein the time offset is a location offset between a synchronization signal burst set identified by the number in a serving cell and the synchronization signal burst set identified by the number in the to-be-measured cell; and
determining, when the period and the time offset are received from the network device, a location of the synchronization signal burst set in the to-be-measured cell based on a period of the synchronization signal burst set in the serving cell, the period of the synchronization signal burst set in the to-be-measured cell, and the time offset; and
measuring the to-be-measured cell based on the determined location of the synchronization signal burst set in the to-be-measured cell.
8. The non-transitory computer-readable storage medium according to claim 7 , wherein the number is a subframe number and/or a system frame number.
9. The non-transitory computer-readable storage medium according to claim 7 , wherein the receiving comprises:
receiving a radio resource control (RRC) signaling that is sent by the network device and that carries at least one of the period, the time offset, and the number of the synchronization signal burst set in the to-be-measured cell.
10. The measurement method according to claim 1 , wherein the period of a synchronization signal burst set in a to-be-measured cell corresponds to a time interval between a first synchronization signal burst set in the to-be-measured cell and a second synchronization signal burst set in the to-be-measured cell, wherein the first synchronization signal burst set is identified by the number and the second synchronization signal burst set is identified by the number, and wherein the second synchronization signal burst set follows the first synchronization signal burst set without any intervening synchronization signal burst sets identified by the number.
11. The measurement method according to claim 1 , wherein a synchronization signal burst set group comprises a plurality of synchronization signal burst sets each identified by a respective index value, and wherein the number corresponds to one of the respective index values.
12. The measurement apparatus according to claim 5 , wherein the period of a synchronization signal burst set in a to-be-measured cell corresponds to a time interval between a first synchronization signal burst set in the to-be-measured cell and a second synchronization signal burst set in the to-be-measured cell, wherein the first synchronization signal burst set is identified by the number and the second synchronization signal burst set is identified by the number, and wherein the second synchronization signal burst set follows the first synchronization signal burst set without any intervening synchronization signal burst sets identified by the number.
13. The measurement apparatus according to claim 12 , wherein a synchronization signal burst set group comprises a plurality of synchronization signal burst sets each identified by a respective index value, and wherein the number corresponds to one of the respective index values.
14. The non-transitory computer-readable storage medium according to claim 7 , wherein the period of a synchronization signal burst set in a to-be-measured cell corresponds to a time interval between a first synchronization signal burst set in the to-be-measured cell and a second synchronization signal burst set in the to-be-measured cell, wherein the first synchronization signal burst set is identified by the number and the second synchronization signal burst set is identified by the number, and wherein the second synchronization signal burst set follows the first synchronization signal burst set without any intervening synchronization signal burst sets identified by the number.
15. The non-transitory computer-readable storage medium according to claim 14 , wherein a synchronization signal burst set group comprises a plurality of synchronization signal burst sets each identified by a respective index value, and wherein the number corresponds to one of the respective index values.