CN200973165Y

CN200973165Y - Frequency switching system in TD SCDMA communication system

Info

Publication number: CN200973165Y
Application number: CNU2006201399363U
Authority: CN
Inventors: 臧侃
Original assignee: ZHEJIANG HUALI COMMUNICATION GROUP CO Ltd
Current assignee: ZHEJIANG HUALI COMMUNICATION GROUP CO Ltd
Priority date: 2006-11-13
Filing date: 2006-11-13
Publication date: 2007-11-07
Anticipated expiration: 2016-11-13

Abstract

The utility model relates to an inter-frequency switching system in the TD-SCDMA communication system, wherein the user equipment (1) uses the wireless chain channel to switch in with the network service (2A); the network service is switched in (2A) the signal terminal and wireless network inter-frequency switching controller (4A) signal terminal connection; the wireless network inter-frequency switching controller (4A) signal terminal is respectively connected with the central network (3) and the network service switched-in point (2B) signal terminal; the network service switched-in points (2C and 2D) and the central network (3) signal terminal and wireless network controller (4B) signal terminal are connected. The system has the advantages that the system not only is able to effectively conduct the inter-frequency switching, but also has not to change the measure control in the inter-frequency measurement.

Description

Switched system between TD-SCDMA communication system medium frequency

Technical field

The utility model relates to the system of switching between a kind of TD-SCDMA communication system medium frequency, belongs to communication system and makes the field.

Background technology

TD-SCDMA (TD SDMA) is also referred to as UTRA (Universal Mobile Telecommunications System (UMTS) land wireless access) TDD (time division duplex) 1.28MCPS option, is a so-called 3G (third generation) wireless telecommunication system.TD-SCDMA uses TDMA (time division multiple access) and CDMA as multiple access mode, may there be a plurality of slots with regard to meaning on each single-channel carrier in this with regard to each sending direction, and in each slot, via orthogonal code division from one or more users can transmit or receive data simultaneously, and in the multigap pattern, a user even can take a plurality of time slots.Because TD-SCDMA uses the bandwidth of a 1.6MHz, so it has a lower single-channel carrier capacity.Therefore, a TD-SDMA generally is that (by network operator) carried out by using a plurality of carrier waves.Nonetheless, in order to stop communication link, must carry out relatively continually and switch (IFHO) between frequency owing to overburden worsens.

Summary of the invention

Purpose of design: provide a kind of can be to switched system between the TD-SCDMA communication system medium frequency that switches between medium frequency.

Design: 1, the decision content relevant with capacity may with the received signal intensity index that is used for sub-district and carrier frequency and and the difference that is used for the received signal chip power of sub-district and carrier frequency be inversely proportional to, or with algebraic method on relevant quantity be inversely proportional to, thereby realize according to similar mode.Therefore, judge that whether carrying out the step of distinguishing exchange between a frequency more may not only be based upon on the decision content relevant with capacity, also is based upon a threshold value that is used for the received signal chip power.2, relevant with capacity decision content may be the received signal chip power that is used for sub-district and carrier frequency, this value is removed with the difference of the received signal chip power that is used for this sub-district and this carrier frequency by a received signal intensity index that is used for sub-district and carrier frequency, perhaps may be quantity relevant on the algebraic method, thereby can realize according to similar mode.Therefore, provide one to comprise the computer-readable storage organization computer program of (including the execution that computer program code can be used for computer processor on it), wherein, according to above-mentioned 1, computer program code comprises the explanation that is used to carry out a kind of mode.3, provide a network element, this network element comprises: the one, and select a decision content relevant or the decision content relevant to be used to judge between the frequency of whether carrying out a user equipment (ue) device and switch as the basis with capacity with covering; The 2nd, judge that whether using selected decision content to carry out between frequency switches.4, provide a kind of device, this device comprises: the one, user equipment (ue) device can receive an indication---will carry out one between frequency measurement and the decision content that will in ranking sub-district and frequency, use an indication; The 2nd, this user equipment (ue) device can be carried out an inter-frequency measurements and arrange the result of different districts and frequency according to decision content; Wherein, decision content can be indicated as decision content relevant with capacity or the decision content relevant with covering.5, provide one to comprise the computer-readable storage organization computer program of (including the execution that computer program code can be used for computer processor on it), wherein, according to above-mentioned 4, computer program code comprises the explanation that is used to carry out a kind of mode.6, provide a kind of user equipment (ue) device, this device comprises: the one, user equipment (ue) device can receive an indication---will carry out one between frequency measurement and the decision content that will in ranking sub-district and frequency, use an indication; The 2nd, user equipment (ue) device can be carried out an inter-frequency measurements and arrange the result of different districts and frequency according to decision content; Wherein, decision content can be indicated as decision content relevant with capacity or the decision content relevant with covering.7, provide a system, this system comprises: according to a network element of the utility model above-mentioned 3 and a user equipment (ue) device that is connected to network element by Radio Link.This user equipment (ue) device should meet the utility model above-mentioned 6.Radio Link can be, for example, and the time division CDMA Radio Link that comprises a TD SDMA Radio Link or a time division duplex wireless link of any kind.Its technical scheme: switched system between TD-SCDMA communication system medium frequency, subscriber equipment (1) is connected with Network Service Access point (2a) by Radio Link, Network Service Access point (2a) signal end and wireless network frequently between the signal end of switch controller (4a) be connected, the signal end of switch controller (4a) is connected with the signal end of central site network (3) with Network Service Access point (2b) respectively between the wireless network frequency, and the signal end of Network Service Access point (2c, 2d) and central site network (3) is connected with the signal end of radio network controller (4b).

Advantage of the present utility model: not only can carry out effectively switching between frequency, and the measurement that need not to change in the inter-frequency measurements is controlled.

Description of drawings

Fig. 1 is the applicable system schematic of the utility model.

Embodiment

Embodiment 1: with reference to accompanying drawing 1.Switched system between TD-SCDMA communication system medium frequency, subscriber equipment 1 is connected with Network Service Access point 2a by Radio Link, Network Service Access point 2a signal end and wireless network frequently between the signal end of switch controller 4a be connected, the signal end of switch controller 4a is connected with the signal end of central site network 3 with Network Service Access point 2b respectively between the wireless network frequency, the signal end of Network

Service Access point

2c and 2d and central site network 3 is connected with the signal end of radio network controller 4b, and central site network 3 is meant communicating terminal or server.

Fig. 1, thereby install Radio Link that a UE11 can pass through to SAP2a with radio network controller 4a up to central site network 3 (a last communicating terminal or a server, demonstration) sets up wireless telecommunications, wherein SAP2a is in available various carrier frequencies 1, ..., j ..., have a cell i among the N, and use a carrier frequency j.Need to carry out an IFHO (rigid handover to another SAP2b-d, carrier frequency changes therein), this is to be caused by the deterioration in the Radio Link, and the origin cause of formation of this deterioration or be because UE has shifted out cell i (perhaps having moved on to another SAP2b-d occupies advantage on coverage place), perhaps this is owing to user in cell i too much causes.If there is another IFHO, aforementioned according to the utility model, promptly, use a metering that is used to cover and be used for the metering of capacity, this UE can be switched to another SAP2b-d (each provides a sub-district that is different from cell i) and carrier frequency also is changed on another available carrier frequency (depending on that SAP that is chosen as SAP).As what point out above, Radio Access Network can use a plurality of different carrier waves, and can use a plurality of sub-district and use a plurality of (identical or different) in other sub-district.Therefore, the frequency that is used for two sub-districts can be overlapped, also can be overlapping fully, and perhaps not overlapping.Typically, thereby but in all sub-districts, should use a carrier frequency that continuous covering is provided in service area at least, in addition, only when the carrier frequency of using other in the high place of needs.(be noted that the overlay area that is used for the different carrier frequencies of a sub-district there is no need identical in this sub-district.

What need understand is: though the foregoing description is to the utility model detailed explanation of contrasting; but this this explanation is to simple declaration of the present utility model; rather than to restriction of the present utility model; any innovation and creation that do not exceed in the utility model connotation all fall in the protection range of the present utility model.

Claims

1, switched system between TD-SCDMA communication system medium frequency, it is characterized in that: subscriber equipment (1) is connected with Network Service Access point (2a) by Radio Link, Network Service Access point (2a) signal end and wireless network frequently between the signal end of switch controller (4a) be connected, the signal end of switch controller (4a) is connected with the signal end of central site network (3) with Network Service Access point (2b) respectively between the wireless network frequency, and the signal end of Network Service Access point (2c, 2d) and central site network (3) is connected with the signal end of radio network controller (4b).

2, switched system between TD-SCDMA communication system medium frequency according to claim 1, it is characterized in that: central site network (3) is meant communicating terminal or server.