Method and device for setting open-loop power control parameters of TD-SCDMA (time division synchronous code division multiple access) network

Abstract

The invention discloses a method for setting open-loop power control parameters of the TD-SCDMA (time division synchronous code division multiple access) network. The method includes computing field intensity of an uplink pilot channel UpPCH of user equipment UE when transmitting radio resource control RRC connection requests; comparing the field intensity of the UpPCH with a preset field intensity value, determining the field intensity proportional value of the field intensity of the UpPCH smaller than the preset field intensity value; comparing the field intensity proportional value with a preset proportion value; if judging that the field intensity proportional value is larger than the preset proportional value, determining the scene of the cell where the UE is located as a weak coverage scene; setting the open-loop power control parameters of the TD-SCDMA network and setting the open-loop power control parameters of the TD-SCDMA network of the cell of the weak coverage scene as open-loop power parameters of the preset weak coverage scene.

Description

technical field [0001] The present invention relates to the field of mobile communications, in particular to the control of open-loop power parameters in the field of time-division duplex synchronous code-division multiple access mobile communications, and specifically to a method and device for setting open-loop power control parameters of a TD-SCMDA network . Background technique [0002] In the TD-SCDMA wireless network, the areas with poor wireless connection rate are mainly concentrated in areas with poor wireless coverage. The wireless connection rate is related to Radio Resource Control (RRC) and Radio Access Bearer (RAB), and the formula is: [0003] Wireless connection rate = RAB establishment success rate * RRC connection establishment success rate (business related) * 100% [0004] The reasons for RRC connection failure in TD-SCDMA network are divided into three categories according to the signaling process and referring to the 3GPP TS 25.331 protocol: Unspecifi...

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Problems solved by technology

[0005] Since the wireless connection rate RRC connection establishment success rate has a great relationship with the open-loop power control parameters, but in the prior art, for the uplink, the uplink power control parameters: UpPCH (Uplink Pilot Channel Uplink Pilot Channel) expected by the cell receiver end ) received power (PRXUpPCHdes) is set to 30 for the entire network, corresponding to -90dBm. For weak coverage scenarios, this parameter is set too small, which directly leads to a low connection rate. In addition, in the prior art, other related open-loop The power control parameters are not properly set

Therefore, because the TD-SCDMA network uniformly sets the open-loop power control parameters in the prior art, it affects the wireless connection rate of the overall network and also affects the user experience.

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