CN104144028A

CN104144028A - Channel quality indication adjusting method, device and system

Info

Publication number: CN104144028A
Application number: CN201310168962.3A
Authority: CN
Inventors: 任亚珍; 李铮铮; 李海朝
Original assignee: Huawei Technologies Co Ltd
Current assignee: Wuzhong District Hengjing Boer Machinery Factory
Priority date: 2013-05-06
Filing date: 2013-05-06
Publication date: 2014-11-12
Anticipated expiration: 2033-05-06
Also published as: CN104144028B

Abstract

The embodiment of the invention discloses a channel quality indication adjusting method, device and system. When an access device receives a channel quality indication message sent by a terminal, the access device searches a terminal capacity message list according to an identifier of the terminal so as to obtain a terminal capacity message corresponding to the identifier of the terminal and an access device attribute corresponding to the terminal capacity message, wherein the terminal capacity message comprises a terminal measurement attribute and/or a terminal receiver message. The channel quality indication measured by the terminal is adjusted correspondingly according to the terminal capacity message and the access device attribute corresponding to the terminal capacity message, and the problems of adjustment delaying and low efficiency of an existing CQI adjusting method are solved.

Description

Channel quality indication adjusting method, Apparatus and system

Technical field

The embodiment of the present invention relates to communication technical field, relates in particular to a kind of channel quality indication adjusting method, Apparatus and system.

Background technology

At Long Term Evolution (Long Term Evolution, LTE) in system, the proprietary pilot tone in community (the Cell-specific Reference Signal that terminal can send according to base station, CRS) carry out channel estimating, and to base station feedback channel quality indication (Channel Quality Indicator, CQI).Base station utilizes the CQI of terminal feedback to carry out Modulation and Coding Scheme (Modulation and Coding Scheme, MCS) and selects, and determines transmission block size in conjunction with the resource size of distributing.

The CQI of terminal feedback may be more on the low side than real channel quality, for example, in relay system, base station is configured to return subframe and access subframe by ascending-descending subframes, wherein, passback subframe is for the backhaul transport between base station and via node (Relay Node, RN), and access subframe is for the transfer of data between via node and terminal.Carry out mistake reception when preventing that terminal from sending backhaul subframe in base station, via node can be terminal configuration multicast/multicast single-frequency network network (Multicast Broadcast Single Frequency Network, MBSFN) subframe.In MBSFN subframe, via node receives base station down data, only at Physical Downlink Control Channel (physical downlink control channel, PDCCH) in, there is CRS, if UE measures according to each Transmission Time Interval (Transmission Time Interval, TTI) and the mode measurement of filtering reports, the CQI reporting can be more on the low side than actual CQI, cause the base station scheduling MCS can be poorer than actual channel quality, thereby can not make full use of resource.Therefore, need base station or via node (Relay Node, RN) CQI of terminal feedback is adjusted, for the accuracy that guarantees that CQI adjusts, RN or base station need to obtain terminal and measure the method for measurement of CQI and the information such as receiver disposal ability of this terminal, could select suitable CQI method of adjustment to adjust the CQI of terminal feedback; Yet, due to terminal not to base station or RN report this terminal to measure the method for measurement of CQI and the information such as receiver disposal ability of this terminal, in the access each time of terminal or while switching, base station or RN need could obtain the terminal measurement method of measurement of CQI and the information such as receiver disposal ability of this terminal by the self study of a period of time, thereby can select suitable CQI method of adjustment to adjust the CQI of terminal feedback, therefore have time delay, the inefficient problem adjusted.

Summary of the invention

The invention provides a kind of channel quality indication adjusting method, Apparatus and system, in order to solve existence in existing CQI method of adjustment, adjust time delay, inefficient problem.

First aspect, provides a kind of channel quality indication adjusting method, comprising:

The channel quality indication (CQI) information that access device receiving terminal sends, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured;

Described access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and the access device attribute corresponding with described terminal ability information, described terminal ability information comprises the measurement attribute of described terminal and/or the receiver information of described terminal, and the access device attribute corresponding with described terminal ability information comprises the attribute of described access device or the attribute of other access devices;

Described access device is according to described terminal ability information and the access device attribute corresponding with described terminal ability information, and the channel quality indication that described terminal is measured is adjusted accordingly.

Based on first aspect, in the possible implementation of the first, described access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and before the access device attribute corresponding with described terminal ability information, comprising:

Described access device obtains described terminal ability information by self study, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, the attribute that the access device attribute corresponding with described terminal ability information is described access device.

The possible implementation of the first based on first aspect, in the possible implementation of the second, described access device obtains described terminal ability information by self study, comprising:

Described access device is within the default time, if accumulative total is greater than adjustment amount threshold value to the forward adjustment amount of the channel quality indication of described terminal feedback, the measurement attribute of determining described terminal is that the channel quality that described terminal is measured is indicated indication information on the low side; And/or

Described access device is within the default time, add up the average effective transmission rate of described terminal in every kind of multithread channel quality indication adjustment algorithm, the receiver performance parameter of using is defined as to the receiver information of described terminal in multithread channel quality indication adjustment algorithm corresponding to described average effective transmission rate maximum.

Based on the possible implementation of first or the second of first aspect, in the third possible implementation, described access device comprises after obtaining described terminal ability information by self study:

Described access device is by the described terminal ability information obtaining by self study, and the access device attribute corresponding with described terminal ability information sends to equipment of the core network to be preserved.

Based on first aspect or first aspect first to the third arbitrary possible implementation, in the 4th kind of possible implementation, described access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and before the access device attribute corresponding with described terminal ability information, comprising:

Described access device receives sign and the described terminal ability information of the described terminal of described equipment of the core network transmission, and the access device attribute corresponding with described terminal ability information, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, the described terminal ability information that described equipment of the core network sends is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is described other access devices, or

Described access device receives sign and the described terminal ability information of the described terminal of described other access devices transmissions in handoff procedure, and the access device attribute corresponding with described terminal ability information, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, described terminal ability information is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is described other access devices.

Second aspect, provides a kind of channel quality indication adjusting device, comprising:

Receiver module, the channel quality indication (CQI) information sending for receiving terminal, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured;

Acquisition module, be used for according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and the access device attribute corresponding with described terminal ability information, described terminal ability information comprises the measurement attribute of described terminal and/or the receiver information of described terminal, and the access device attribute corresponding with described terminal ability information comprises the attribute of described access device or the attribute of other access devices;

Adjusting module, for according to described terminal ability information and the access device attribute corresponding with described terminal ability information, adjusts accordingly to the channel quality indication of described terminal measurement.

Based on second aspect, in the possible implementation of the first, also comprise:

Study module, for obtaining described terminal ability information by self study;

Preserve module, for described terminal ability information and the access device attribute corresponding with described terminal ability information being saved in to the terminal ability information list corresponding with the sign of described terminal, the attribute that the access device attribute corresponding with described terminal ability information is described access device.

The possible implementation of the first based on second aspect, in the possible implementation of the second, described study module specifically for:

Within the default time, if accumulative total is greater than adjustment amount threshold value to the forward adjustment amount of the channel quality indication of described terminal feedback, the measurement attribute of determining described terminal is that the channel quality that described terminal is measured is indicated indication information on the low side; And/or

Within the default time, add up the average effective transmission rate of described terminal in every kind of multithread channel quality indication adjustment algorithm, the receiver performance parameter of using is defined as to the receiver information of described terminal in multithread channel quality indication adjustment algorithm corresponding to described average effective transmission rate maximum.

Based on the possible implementation of first or the second of second aspect, in the third possible implementation, also comprise:

Sending module, for the terminal ability information that described study module study is obtained, and the access device attribute corresponding with described terminal ability information sends to equipment of the core network to be preserved.

Based on second aspect or second aspect first to the third arbitrary possible implementation, in the 4th kind of possible implementation, described receiver module, also for receiving sign and the described terminal ability information of the described terminal that described equipment of the core network sends, and the access device attribute corresponding with described terminal ability information;

Described preservation module, also for described terminal ability information and the access device attribute corresponding with described terminal ability information are saved in to the terminal ability information list corresponding with the sign of described terminal, the described terminal ability information that described equipment of the core network sends is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is described other access devices; Or

Described receiver module, also for receiving sign and the described terminal ability information of the described terminal of described other access devices transmissions and the access device attribute corresponding with described terminal ability information at handoff procedure;

Described preservation module, also for described terminal ability information and the access device attribute corresponding with described terminal ability information that described receiver module is received, be saved in the terminal ability information list corresponding with the sign of described terminal, described terminal ability information is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is described other access devices.

The third aspect, provides a kind of channel quality indication adjustment System, comprising: access device and terminal;

Described access device comprises the channel quality indication adjusting device described in second aspect;

Described terminal, for to described access device transmitting channel quality indication (CQI) information, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured; So that described access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and the access device attribute corresponding with described terminal ability information, described terminal ability information comprises the measurement attribute of described terminal and/or the receiver information of described terminal; According to described terminal ability information and the access device attribute corresponding with described terminal ability information, the channel quality indication that described terminal is measured is adjusted accordingly.

Based on the third aspect, in the possible implementation of the first, also comprise: equipment of the core network and other access devices;

Described equipment of the core network, for send sign and the described terminal ability information of described terminal to described access device, and the access device attribute corresponding with described terminal ability information, so that described access device by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, the described terminal ability information that described equipment of the core network sends is the described terminal ability information that described other access devices obtain by self study; Or

Described other access devices, for send sign and the described terminal ability information of described terminal to described access device at handoff procedure, and the access device attribute corresponding with described terminal ability information, so that described access device by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, described terminal ability information is the described terminal ability information that described other access devices obtain by self study.

The present invention is when access device receives the channel quality indication (CQI) information of terminal transmission, and described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured; Access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal and the access device attribute corresponding with described terminal ability information, the access device attribute corresponding with described terminal ability information according to described terminal ability information, the channel quality that described terminal is measured indication is adjusted accordingly; Do not need access device to repeat to obtain terminal ability information by a period of time self study, saved the time that access device obtains terminal ability information, accelerated the time of access device selection CQI method of adjustment, therefore, can improve CQI regulated efficiency.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The schematic flow sheet of the channel quality indication adjusting method that Fig. 1 provides for one embodiment of the invention;

The signaling diagram of the channel quality indication adjusting method that Fig. 2 provides for another embodiment of the present invention;

The signaling diagram of the channel quality indication adjusting method that Fig. 3 provides for another embodiment of the present invention;

The signaling diagram of the channel quality indication adjusting method that Fig. 4 provides for another embodiment of the present invention;

The structural representation of the channel quality indication adjusting device that Fig. 5 provides for another embodiment of the present invention;

The structural representation of the channel quality indication adjusting device that Fig. 6 provides for another embodiment of the present invention;

The channel quality that Fig. 7 provides for another embodiment of the present invention is indicated the structural representation of adjustment System.

Embodiment

For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Technical scheme of the present invention, can be applied to various wireless communication systems, for example: global system for mobile communications (English: Global System for Mobile Communications, be called for short GSM), GPRS (English: General Packet Radio Service, be called for short GPRS) system, code division multiple access (English: Code Division Multiple Access, be called for short CDMA) system, CDMA2000 system, Wideband Code Division Multiple Access (WCDMA) (English: Wideband Code Division Multiple Access, be called for short WCDMA) system, Long Term Evolution (English: Long Term Evolution, be called for short LTE) system or World Interoperability for Microwave Access, WiMax (English: World Interoperability for Microwave Access, be called for short WiMAX) system etc.

Access device described in the embodiment of the present invention comprises base station or via node (Relay Node, RN).

The schematic flow sheet of the channel quality indication adjusting method that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, the channel quality indication adjusting method of the present embodiment can comprise:

101, the channel quality indication (CQI) information that access device receiving terminal sends, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured.

During specific implementation, for example, at Long Term Evolution (Long Term Evolution, LTE) in system, the community proprietary pilot tone Cell-specific Reference Signal that terminal can for example, send according to access device (base station), CRS), can utilize existing CQI method of measurement to carry out channel component, and the CQI measuring is sent to base station.

102, access device is according to the sign of described terminal, and the list of inquiry terminal ability information, obtains the terminal ability information corresponding with the sign of described terminal, and the access device attribute corresponding with described terminal ability information.

Wherein, described terminal ability information comprises the measurement attribute of described terminal and/or the receiver information of described terminal.The access device attribute corresponding with described terminal ability information comprises the attribute of this access device or the attribute of other access devices.

In an optional execution mode of the present invention, before step 102, comprising:

Described access device obtains described terminal ability information by self study, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, wherein, the attribute that the access device attribute corresponding with described terminal ability information is this access device.

Wherein, described access device obtains described terminal ability information by self study, during specific implementation:

Described access device is within the default time, if accumulative total is greater than adjustment amount threshold value to the forward adjustment amount of the channel quality indication of described terminal feedback, the measurement attribute of determining described terminal comprises that the channel quality that described terminal is measured indicates indication information on the low side; Sign or the suggestion adjustment amount that in the measurement attribute of described terminal, can also comprise further, described terminal; Wherein, the sign of described terminal, in order to indicate the identity information of described terminal, on the basis of described suggestion adjustment amount in order to the CQI at described terminal to report, is advised the adjustment amount increasing.And/or

Described access device is within the default time, within the default time, add up the average effective transmission rate of described terminal in every kind of multithread channel quality indication adjustment algorithm, the receiver performance parameter of using is defined as to the receiver information of described terminal in multithread channel quality indication adjustment algorithm corresponding to described average effective transmission rate maximum.

Afterwards, described access device can send to described equipment of the core network to be preserved the described terminal ability information obtaining by self study and the access device attribute corresponding with described terminal ability information, so that when terminal is switched to other access devices, equipment of the core network can send to other access devices by the described terminal ability information access device attribute corresponding with described terminal ability information of preserving, do not need other access devices again by the self study of a period of time, to remove to obtain described terminal ability information, saved the self study time, reduced CQI time delay, can accelerate CQI regulated efficiency.

Described access device receives sign and the described terminal ability information of the described terminal of equipment of the core network transmission, and the access device attribute corresponding with described terminal ability information; Described access device by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, the described terminal ability information that the described terminal ability information that described equipment of the core network sends obtains by self study for other access devices; The attribute that the access device attribute corresponding with described terminal ability information is other access devices.

Described access device receives sign and the described terminal ability information of the described terminal of described other access devices transmissions in handoff procedure, and the access device attribute corresponding with described terminal ability information, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, described terminal ability information is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is other access devices.During specific implementation, for example, described access device can be by sign and the described terminal ability information of the described terminal that other access devices send described in handover request message sink, and the access device attribute corresponding with described terminal ability information.

103, access device is according to described terminal ability information and the access device attribute corresponding with described terminal ability information, and the channel quality indication that described terminal is measured is adjusted accordingly.

After access device obtains terminal ability information, in conjunction with the access device attribute corresponding with described terminal ability information, determine the CQI reason on the low side that described terminal is measured, thereby the CQI that selects suitable CQI adjustment algorithm to measure described terminal according to definite reason carries out corresponding CQI adjustment, for example, whether need terminal to carry out quick CQI convergence algorithm.

Wherein, the access device attribute corresponding with described terminal ability information for example comprises that access device do not send out the sub-frame formats of CRS, or the MBSFN sub-frame formats of access device configuration, or whether access device adopts new carrier type (New Carrier Type, NCT), or whether access device configures the almost characteristic of the relevant access device self such as blank subframe (Almost Blank Subframe, ABS) sub-frame formats.

Above-mentioned access device only has in conjunction with after the terminal ability information access device attribute corresponding with described terminal ability information, could judge the CQI reason on the low side of measuring, for example, terminal is the in the situation that of MBSFN subframe, not do special measurement to process the CQI obtaining, or does not do special measurement while adopting new carrier type NCT and process the CQI obtaining.

Further, at multi-user beam-forming scheme (Multi-User Beam forming, MU-BF) in, when access device selects double fluid or multithread CQI adjustment algorithm to adjust the CQI of terminal to report, need to know the receiver information (for example, the information such as the performance parameter of receiver and type) of terminal.Yet in the prior art, terminal does not report the receiver information of this terminal to access device, make the inaccurate of the double fluid of access device or multithread CQI adjustment algorithm.In the present embodiment, after access device obtains terminal ability information, can determine the receiver information of described terminal, in conjunction with this access device attribute, select suitable double fluid or multithread CQI adjustment algorithm to carry out corresponding CQI adjustment.

It should be noted that, CQI convergence algorithm and MU-BF double fluid or multithread CQI evaluation method can be algorithms of the prior art fast:

For example, utilize the fast CQI adjustment amount becoming to realize the quick compensation to CQI on the low side.First, access device for example, according to terminal ability information (the measurement attribute of terminal), suppose to determine the CQI method of adjustment that adopts Fast Convergent, terminal reports after CQI to access device, and access device is adjusted CQI according to ACK message or the NACK message of UE feedback.For example, when terminal feedback N continuous ACK, CQI adjustment amount increases, and corresponding CQI adjustment formula can be expressed as: adjustment amount=0.1* (desired value-measured value) * N/ (1-desired value).Wherein, N represents to add up the continuous number of times of ACK, and desired value and measured value refer to desired value and the measured value of original block error rate IBLER, and hypothetical target value can be 10%, and when terminal feedback ACK message, measured value is 0, and when feedback NACK message, measured value is 1.

It should be noted that, the CQI rapid adjustment formula providing in the present embodiment, is not unique adjustment amount calculating formula, and any ACK message number along with continuous feedback increases and causes the fast adjustment method of CQI adjustment amount growth all to be included.

Again for example, the method compensating by forward realizes the quick compensation to CQI on the low side.First, access device for example, according to terminal ability information (the measurement attribute of terminal), suppose to determine the CQI method of adjustment that adopts Fast Convergent, terminal reports after CQI to access device, access device carries out forward compensation by the CQI of terminal to report, then utilizes traditional CQI method of adjustment to carry out CQI adjustment.Wherein, traditional CQI method of adjustment is according to the ACK message of terminal feedback or NACK message, CQI to be adjusted, and corresponding CQI adjustment formula can be expressed as: adjustment amount=0.1* (desired value-measured value)/(1-desired value).Wherein, desired value and measured value refer to desired value and the measured value of original block error rate IBLER, and hypothetical target value can be 10%, and when terminal feedback ACK message, measured value is 0, and when feedback NACK message, measured value is 1.

The embodiment of the present invention, when access device receives the channel quality indication (CQI) information of terminal transmission, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured; Access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and the access device attribute corresponding with described terminal ability information, according to described terminal ability information and described access device attribute, the channel quality indication that described terminal is measured is adjusted accordingly; Do not need access device to repeat to obtain terminal ability information by a period of time self study, saved the time that access device obtains terminal ability information, accelerated the time of access device selection CQI method of adjustment, therefore, can improve CQI regulated efficiency.

The signaling diagram of the channel quality indication adjusting method that Fig. 2 provides for another embodiment of the present invention, as shown in Figure 2, the channel quality indication adjusting method of the present embodiment can comprise:

201, the first access device obtains the terminal ability information of terminal by self study, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in ability information list corresponding to the sign of described terminal in.

The terminal ability information that the first access device can obtain self study and the access device attribute corresponding with described terminal ability information, be saved in the terminal ability information list of sign correspondence of this terminal, wherein, the access device attribute corresponding with described terminal ability information is the attribute of the first access device, specific implementation can, with reference to the associated description in middle step 102 embodiment illustrated in fig. 1, repeat no more.

202, terminal accesses the first access device, the CQI measuring to described the first access device transmitting terminal.

203, the first access device, according to the sign of terminal, obtains the terminal ability information corresponding with the sign of this terminal and the access device attribute corresponding with described terminal ability information.

After terminal accesses the first equipment, the first access device can detect the sign of terminal, according to the sign of terminal, the list of inquiry terminal ability information, can obtain the terminal ability information corresponding with the sign of this terminal and the access device attribute corresponding with described terminal ability information.

204, the first access device, according to terminal ability information and the access device attribute corresponding with described terminal ability information, is adjusted accordingly to the channel quality indication of terminal to report.

In the present embodiment, the terminal ability information that the first access device obtains self study and the access device attribute corresponding with described terminal ability information are preserved, when terminal accesses the first access device again, do not need the first access device again by self study, to obtain terminal capability, but can be according to the terminal ability information of preserving and the access device attribute corresponding with described terminal ability information, select fast suitable CQI adjustment algorithm, improved CQI regulated efficiency.

The signaling diagram of the channel quality indication adjusting method that Fig. 3 provides for another embodiment of the present invention, as shown in Figure 3, the channel quality indication adjusting method of the present embodiment can comprise:

301, the first access device obtains the terminal ability information of terminal by self study.

Specific implementation can, with reference to the associated description in middle step 102 embodiment illustrated in fig. 1, repeat no more.

302, the first access device is the sign of terminal and the terminal ability information that obtains, and the access device attribute corresponding with described terminal ability information sends to equipment of the core network.

Wherein, the access device attribute corresponding with described terminal ability information is the attribute of the first access device.

303, equipment of the core network is preserved sign and the terminal ability information of terminal, and the access device attribute corresponding with described terminal ability information.

304, equipment of the core network is the sign of terminal and terminal ability information, and the access device attribute corresponding with described terminal ability information sends to the second access device to be preserved.

When terminal is switched to the second access device from the first access device, equipment of the core network can send to the second access device by the terminal ability information of this terminal and the access device attribute corresponding with described terminal ability information, during specific implementation, for example, when core net detects terminal and is switched to the second access device from the first access device, can, according to the sign of the terminal detecting, the terminal ability information about this terminal of preserving and the access device attribute corresponding with described terminal ability information be sent to the second access device, or, when terminal is switched to the second access device from the first access device, the second access device can send to equipment of the core network the request message that obtains terminal ability information of the sign that comprises this terminal, equipment of the core network is according to the sign of the terminal comprising in request message, send to the second access device to be preserved the terminal ability information about this terminal of preserving and the access device attribute corresponding with described terminal ability information, for example, the second access device terminal ability information and the access device attribute corresponding with described terminal ability information can be saved in terminal ability information list corresponding to the sign of this terminal in.

305, terminal is switched to the second access device, the CQI measuring to the second access device transmitting terminal.

306, the second access device, according to the sign of terminal, obtains the terminal ability information corresponding with the sign of this terminal and the access device attribute corresponding with described terminal ability information.

After terminal accesses the second equipment, the second access device can detect the sign of terminal, according to the sign of terminal, the list of inquiry terminal ability information, can obtain the terminal ability information corresponding with the sign of this terminal and the access device attribute corresponding with described terminal ability information.

307, the second access device is according to terminal ability information, and the access device attribute corresponding with described terminal ability information, and the channel quality indication of terminal to report is adjusted accordingly.

In the present embodiment, the terminal ability information that the first access device obtains self study and the access device attribute corresponding with described terminal ability information are saved in equipment of the core network, when terminal is switched to the second access device from the first access device, do not need the second access device to obtain terminal capability and the access device attribute corresponding with described terminal ability information by self study, but can obtain terminal ability information and the access device attribute corresponding with described terminal ability information from equipment of the core network, and according to the terminal ability information obtaining and the access device attribute corresponding with described terminal ability information, attribute in conjunction with the second access device, select fast suitable CQI adjustment algorithm, improved CQI regulated efficiency.

The signaling diagram of the channel quality indication adjusting method that Fig. 4 provides for another embodiment of the present invention, as shown in Figure 4, the channel quality indication adjusting method of the present embodiment can comprise:

401, the first access device obtains the terminal ability information of terminal by self study.

402, the first access device sends handover request message to the second access device.

When terminal need to be switched to the second access device from the first access device, the first access device can send handover request message to the second access device, wherein, handover request message comprises the sign of first this terminal of access device and the terminal ability information obtaining and the access device attribute corresponding with described terminal ability information.Wherein, the access device attribute corresponding with described terminal ability information is the attribute of the first access device.

403, the second access device is preserved terminal ability information and the access device attribute corresponding with described terminal ability information.

Particularly, the second access device by terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of this terminal in.

404, terminal is switched to the second access device, the CQI measuring to the second access device transmitting terminal.

405, the second access device, according to the sign of terminal, obtains the terminal ability information corresponding with the sign of this terminal and the access device attribute corresponding with described terminal ability information.

Particularly, after terminal accesses the second equipment, the second access device can detect the sign of terminal, according to the sign of terminal, the list of inquiry terminal ability information, can obtain the terminal ability information corresponding with the sign of this terminal and the access device attribute corresponding with described terminal ability information.

406, the second access device, according to terminal ability information and the access device attribute corresponding with described terminal ability information, is adjusted accordingly to the channel quality indication of terminal to report.

In the present embodiment, the terminal ability information that the first access device obtains self study and the access device attribute corresponding with described terminal ability information send to the second access device to be preserved by handover request message, make when terminal is switched to the second access device from the first access device, do not need the second access device to obtain terminal capability by self study, but can the list of inquiry terminal ability information obtain terminal ability information and the access device attribute corresponding with described terminal ability information, and according to the terminal ability information obtaining and the access device attribute corresponding with described terminal ability information, attribute in conjunction with the second access device, select fast suitable CQI adjustment algorithm, improved CQI regulated efficiency.

The structural representation of the channel quality indication adjusting device that Fig. 5 provides for another embodiment of the present invention; Be positioned at access device side, as shown in Figure 5, comprise:

Receiver module 51, the channel quality indication (CQI) information sending for receiving terminal, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured;

Acquisition module 52, be used for according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and the access device attribute corresponding with described terminal ability information, described terminal ability information comprises the measurement attribute of described terminal and/or the receiver information of described terminal, and the access device attribute corresponding with described terminal ability information comprises the attribute of described access device or the attribute of other access devices;

Adjusting module 53, for according to described terminal ability information and the access device attribute corresponding with described terminal ability information, adjusts accordingly to the channel quality indication of described terminal measurement.

For instance, described device also comprises:

Study module 54, for obtaining described terminal ability information by self study;

Preserve module 55, for described terminal ability information and the access device attribute corresponding with described terminal ability information being saved in to the terminal ability information list corresponding with the sign of described terminal, the attribute that the access device attribute corresponding with described terminal ability information is described access device.

For instance, described study module 54 specifically for:

For instance, described device also comprises:

Sending module 56, for the terminal ability information that described study module study is obtained, and the access device attribute corresponding with described terminal ability information sends to equipment of the core network to be preserved.

For instance, receiver module 51, also for receiving sign and the described terminal ability information of the described terminal of described equipment of the core network transmission, and the access device attribute corresponding with described terminal ability information;

Described preservation module 55, also for described terminal ability information and the access device attribute corresponding with described terminal ability information are saved in to the terminal ability information list corresponding with the sign of described terminal, the described terminal ability information that described equipment of the core network sends is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is described other access devices; Or

Described receiver module 51, also for receiving sign and the described terminal ability information of the described terminal of described other access devices transmissions and the access device attribute corresponding with described terminal ability information at handoff procedure;

Described preservation module 55, also for described terminal ability information and the access device attribute corresponding with described terminal ability information that described receiver module is received, be saved in the terminal ability information list corresponding with the sign of described terminal, described terminal ability information is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is described other access devices.

The embodiment of the present invention, when access device receives the channel quality indication (CQI) information of terminal transmission, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured; Access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal and the access device attribute corresponding with described terminal ability information, according to described terminal ability information and the access device attribute corresponding with described terminal ability information, the channel quality indication that described terminal is measured is adjusted accordingly; Do not need access device to repeat to obtain terminal ability information by a period of time self study, saved the time that access device obtains terminal ability information, accelerated the time of access device selection CQI method of adjustment, therefore, can improve CQI regulated efficiency.

The structural representation of the channel quality indication adjusting device that Fig. 6 provides for another embodiment of the present invention; Be positioned at access device side, as shown in Figure 6, comprise: processor, memory and communication bus, described processor is connected with memory by communication bus, in described memory, preserve the instruction that realizes channel quality indication adjusting method, further, described device can also comprise communication interface, for example, by communication interface and other network element devices (terminal) communication connection.

When processor is transferred the instruction in memory, can carry out following steps:

The channel quality indication (CQI) information that receiving terminal sends, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured;

According to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and the access device attribute corresponding with described terminal ability information, described terminal ability information comprises the measurement attribute of described terminal and/or the receiver information of described terminal, and the access device attribute corresponding with described terminal ability information comprises the attribute of described access device or the attribute of other access devices;

According to described terminal ability information and the access device attribute corresponding with described terminal ability information, the channel quality indication that described terminal is measured is adjusted accordingly.

For instance, according to the sign of described terminal, the list of inquiry terminal ability information, obtains the terminal ability information corresponding with the sign of described terminal, and before the access device attribute corresponding with described terminal ability information, comprising:

By self study, obtain described terminal ability information, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, the attribute that the access device attribute corresponding with described terminal ability information is described access device.

For instance, by self study, obtain described terminal ability information, comprising:

For instance, after obtaining described terminal ability information by self study, comprising:

By the described terminal ability information obtaining by self study, and the access device attribute corresponding with described terminal ability information sends to equipment of the core network to be preserved.

Receive sign and the described terminal ability information of the described terminal of described equipment of the core network transmission, and the access device attribute corresponding with described terminal ability information, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, the described terminal ability information that described equipment of the core network sends is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is described other access devices, or

In handoff procedure, receive sign and the described terminal ability information of the described terminal of described other access devices transmissions, and the access device attribute corresponding with described terminal ability information, by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, described terminal ability information is the described terminal ability information that described other access devices obtain by self study, the attribute that the access device attribute corresponding with described terminal ability information is described other access devices.

The channel quality that Fig. 7 provides for another embodiment of the present invention is indicated the structural representation of adjustment System, as shown in Figure 7, comprising: access device 71 and terminal 72;

The channel quality indication adjusting device of described access device as described in Fig. 6 or Fig. 7, repeats no more;

Described terminal 72, for to described access device transmitting channel quality indication (CQI) information, described channel quality indication (CQI) information comprises the sign of described terminal and the channel quality indication that described terminal is measured; So that described access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and the access device attribute corresponding with described terminal ability information, described terminal ability information comprises the measurement attribute of described terminal and/or the receiver information of described terminal; According to described terminal ability information and the access device attribute corresponding with described terminal ability information, the channel quality indication that described terminal is measured is adjusted accordingly.

For instance, described system can also comprise: equipment of the core network 73 and other access devices 74;

Described equipment of the core network 73, for send sign and the described terminal ability information of described terminal to described access device, and the access device attribute corresponding with described terminal ability information, so that described access device by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, the described terminal ability information that described equipment of the core network sends is the described terminal ability information that described other access devices obtain by self study; Or

Described other access devices 74, for send sign and the described terminal ability information of described terminal to described access device at handoff procedure, and the access device attribute corresponding with described terminal ability information, so that described access device by described terminal ability information and the access device attribute corresponding with described terminal ability information be saved in terminal ability information list corresponding to the sign of described terminal in, described terminal ability information is the described terminal ability information that described other access devices obtain by self study.

In the several embodiment that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.

The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.

The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in the form of code in a computer read/write memory medium.Above-mentioned code storage, in a computer-readable recording medium, comprises that some instructions are with so that processor or hardware circuit are carried out the part or all of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: the miniature high power capacity mobile storage disc without phisical drive of USB (universal serial bus), portable hard drive, read-only memory (English: Read-Only Memory, be called for short ROM), the various media that can be program code stored such as random access memory (English: Random Access Memory, be called for short RAM), magnetic disc or CD.

Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the protection range of various embodiments of the present invention technical scheme.

Claims

1. a channel quality indication adjusting method, is characterized in that, comprising:

2. method according to claim 1, is characterized in that, described access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and before the access device attribute corresponding with described terminal ability information, comprising:

3. method according to claim 2, is characterized in that, described access device obtains described terminal ability information by self study, comprising:

4. according to the method in claim 2 or 3, it is characterized in that, described access device comprises after obtaining described terminal ability information by self study:

5. according to the method described in claim 1-4 any one, it is characterized in that, described access device is according to the sign of described terminal, the list of inquiry terminal ability information, obtain the terminal ability information corresponding with the sign of described terminal, and before the access device attribute corresponding with described terminal ability information, comprising:

6. a channel quality indication adjusting device, is characterized in that, comprising:

7. device according to claim 6, is characterized in that, also comprises:

8. device according to claim 7, is characterized in that, described study module specifically for:

9. according to the device described in claim 7 or 8, it is characterized in that, also comprise:

10. according to the device described in claim 6-9 any one, it is characterized in that, described receiver module, also for receiving sign and the described terminal ability information of the described terminal of described equipment of the core network transmission, and the access device attribute corresponding with described terminal ability information;

11. 1 kinds of channel quality indication adjustment System, is characterized in that, comprising: access device and terminal;

Described access device comprises the channel quality indication adjusting device as described in claim 6-10 any one;

12. systems according to claim 11, is characterized in that, also comprise: equipment of the core network and other access devices;