Transmission parameter obtaining method, apparatus, and system
A transmission parameter obtaining method includes obtaining, by a terminal device, a transmission parameter of a network device, wherein the transmission parameter indicates location information of the network device. The method also includes determining, by the terminal device, at least one of an intra-frequency cell-reselection measurement threshold or an inter-frequency cell-reselection measurement threshold based on the transmission parameter. The method further includes determining, by the terminal device, a radio link failure threshold based on the transmission parameter. The method additionally includes determining, by the terminal device, at least one of an intra-frequency connected-state measurement threshold or an inter-frequency connected-state measurement threshold based on the transmission parameter.
1 . A transmission parameter obtaining method, comprising:
obtaining, by a terminal device, a transmission parameter of a network device, wherein the transmission parameter indicates a positional relationship between the terminal device and the network device; and
determining, by the terminal device, at least one of an intra-frequency cell-reselection threshold or an inter-frequency cell-reselection threshold based on the transmission parameter;
determining, by the terminal device, a radio link failure threshold based on the transmission parameter; or
determining, by the terminal device, at least one of an intra-frequency connected-state threshold or an inter-frequency connected-state threshold based on the transmission parameter,
wherein the at least one of the intra-frequency cell-reselection threshold, the inter-frequency cell-reselection threshold, the radio link failure threshold, the intra-frequency connected-state threshold, or the an inter-frequency connected-state threshold corresponds to the positional relationship between the terminal device and the network device.
2 . The transmission parameter obtaining method according to claim 1 , wherein
the positional relationship comprises a distance between the terminal device and the network device, and
the determining, by the terminal device, the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold based on the transmission parameter comprises:
in response to a variation of the distance in a unit time being less than or equal to a first value, using, by the terminal device, a first threshold as the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold; or
in response to the variation of the distance in the unit time being greater than the first value, using, by the terminal device, a second threshold as the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold, wherein the first threshold is less than the second threshold.
3 . The transmission parameter obtaining method to claim 1 , wherein
the positional relationship comprises a height angle of the network device relative to a center of a serving cell corresponding to the terminal device, and
the determining, by the terminal device, the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold based on the transmission parameter comprises:
determining, by the terminal device based on the height angle from a mapping relationship between the height angle and the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold, at least one of an intra-frequency connected-state threshold or an inter-frequency cell-reselection threshold corresponding to the height angle.
4 . The transmission parameter obtaining method according to claim 1 , wherein
the positional relationship comprises a distance between the terminal device and the network device, and
the determining, by the terminal device, the radio link failure threshold based on the transmission parameter comprises:
in response to a variation of the distance in a unit time being less than or equal to a second value, using, by the terminal device, a third threshold as the radio link failure threshold; or
in response to the variation of the distance in the unit time being greater than the second value, using, by the terminal device, a fourth threshold as the radio link failure threshold, wherein the third threshold is greater than the fourth threshold.
5 . The transmission parameter obtaining method according to claim 1 , wherein
the positional relationship comprises a height angle of the network device relative to a center of a serving cell corresponding to the terminal device, and
the determining, by the terminal device, the at least one of intra-frequency connected-state threshold or the inter-frequency connected-state threshold based on the transmission parameter comprises:
determining, by the terminal device based on the height angle from a mapping relationship between a height angle and the at least one of the intra-frequency connected-state threshold or the inter-frequency connected-state threshold, at least one of an intra-frequency connected-state threshold or an inter-frequency connected-state threshold corresponding to the height angle.
6 . The transmission parameter obtaining method according to claim 1 , further comprising:
periodically updating, by the terminal device, the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold, the radio link failure threshold, or the at least one of the intra-frequency connected-state threshold or the inter-frequency connected-state threshold.
7 . A communication apparatus, comprising:
one or more processors; and
a non-transitory computer-readable storage medium storing instructions that, when executed by the one or more processors, cause the communication apparatus to:
obtain a transmission parameter of a network device, wherein the transmission parameter indicates a positional relationship between the communication apparatus and the network device; and
determine at least one of an intra-frequency cell-reselection threshold or an inter-frequency cell-reselection threshold based on the transmission parameter;
determine a radio link failure threshold based on the transmission parameter; or
determine at least one of an intra-frequency connected-state threshold or an inter-frequency connected-state threshold based on the transmission parameter,
wherein the at least one of the intra-frequency cell-reselection threshold, the inter-frequency cell-reselection threshold, the radio link failure threshold, the intra-frequency connected-state threshold, or the an inter-frequency connected-state threshold corresponds to the positional relationship between the communication apparatus and the network device.
8 . The communication apparatus according to claim 7 , wherein
the positional relationship comprises a distance between a terminal device and the network device, and
the communication apparatus is caused to determine the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold based on the transmission parameter by:
in response to a variation of the distance in a unit time being less than or equal to a first value, using a first threshold as the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold; or
in response to the variation of the distance in the unit time being greater than the first value, using a second threshold as the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold, wherein the first threshold is less than the second threshold.
9 . The communication apparatus according to claim 7 , wherein
the positional relationship comprises a height angle of the network device relative to a center of a serving cell corresponding to a terminal device, and
the communication apparatus is caused to determine the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold based on the transmission parameter by:
determine, based on the height angle from a mapping relationship between the height angle and the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold, at least one of an intra-frequency connected-state threshold or an inter-frequency cell-reselection threshold corresponding to the height angle.
10 . The communication apparatus according to claim 7 , wherein
the positional relationship comprises a distance between a terminal device and the network device, and
the communication apparatus is caused to determine the radio link failure threshold based on the transmission parameter by:
in response to a variation of the distance in a unit time being less than or equal to a second value, using a third threshold as the radio link failure threshold; or
in response to the variation of the distance in the unit time being greater than the second value, using a fourth threshold as the radio link failure threshold, wherein the third threshold is greater than the fourth threshold.
11 . The communication apparatus according to claim 7 , wherein when
the positional relationship comprises a height angle of the network device relative to a center of a serving cell corresponding to a terminal device, and
the communication apparatus is caused to determine the at least one of the intra-frequency connected-state threshold or the inter-frequency connected-state threshold based on the transmission parameter by:
determining, based on the height angle from a mapping relationship between a height angle and the at least one of the intra-frequency connected-state threshold or the inter-frequency connected-state threshold, at least one of an intra-frequency connected-state threshold or an inter-frequency connected-state threshold corresponding to the height angle.
12 . The communication apparatus according to claim 7 , wherein the communication apparatus is further caused to:
periodically update the at least one of the intra-frequency cell-reselection threshold or the inter-frequency cell-reselection threshold, the radio link failure threshold, or the at least one of intra-frequency connected-state threshold or the inter-frequency connected-state threshold.
13 . A transmission parameter sending method, comprising:
sending, by a network device, a transmission parameter to a terminal device, wherein the transmission parameter indicates a positional relationship between the terminal device and the network device; and
causing at least one of an intra-frequency cell-reselection threshold or an inter-frequency cell-reselection threshold to be determined based on the transmission parameter;
causing a radio link failure threshold to be determined based on the transmission parameter; or
causing at least one of an intra-frequency connected-state threshold or an inter-frequency connected-state threshold to be determined based on the transmission parameter,
wherein the at least one of the intra-frequency cell-reselection threshold, the inter-frequency cell-reselection threshold, the radio link failure threshold, the intra-frequency connected-state threshold, or the an inter-frequency connected-state threshold corresponds to the positional relationship between the terminal device and the network device.
14 . The transmission parameter sending method according to claim 13 , wherein
the positional relationship comprises a distance between the terminal device and the network device; or
the positional relationship comprises a height angle of the network device relative to a center of a serving cell corresponding to the terminal device.
15 . A communication apparatus, comprising:
one or more processors; and
a non-transitory computer-readable storage medium storing instructions that, when executed by the one or more processors, cause the communication apparatus to:
send a transmission parameter to a terminal device, wherein the transmission parameter indicates a positional relationship between the terminal device and a network device; and
cause at least one of an intra-frequency cell-reselection threshold or an inter-frequency cell-reselection threshold to be determined based on the transmission parameter;
cause a radio link failure threshold to be determined based on the transmission parameter; or
cause at least one of an intra-frequency connected-state threshold or an inter-frequency connected-state threshold to be determined based on the transmission parameter,
wherein the at least one of the intra-frequency cell-reselection threshold, the inter-frequency cell-reselection threshold, the radio link failure threshold, the intra-frequency connected-state threshold, or the an inter-frequency connected-state threshold corresponds to the positional relationship between the terminal device and the network device.
16 . The communication apparatus according to claim 15 , wherein
the positional relationship comprises a distance between the terminal device and the network device; or
the positional relationship comprises a height angle of the network device relative to a center of a serving cell corresponding to the terminal device.