WO2010006463A1 - Method and device for a mobile terminal in a wireless network to report the communication quality - Google Patents

Method and device for a mobile terminal in a wireless network to report the communication quality

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Publication number
WO2010006463A1
WO2010006463A1 PCT/CN2008/001315 CN2008001315W WO2010006463A1 WO 2010006463 A1 WO2010006463 A1 WO 2010006463A1 CN 2008001315 W CN2008001315 W CN 2008001315W WO 2010006463 A1 WO2010006463 A1 WO 2010006463A1
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WO
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Application
Patent type
Prior art keywords
report
mode
mobile terminal
reporting
communication quality
Prior art date
Application number
PCT/CN2008/001315
Other languages
French (fr)
Chinese (zh)
Inventor
朱孝龙
Original Assignee
上海贝尔阿尔卡特股份有限公司
阿尔卡特朗讯
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports

Abstract

A method for a mobile terminal to report the base station about the communication quality between the opposite end device of the mobile terminal and the downlink communication path of the mobile terminal, in order to solve the problem that the base station is not able to confirm exactly the mode of the downlink communication quality reported by the mobile terminal in the current wireless communication networks, includes: acquiring the report mode of the communication quality, generating the report parameters of the communication quality according to the report mode and the received downlink signal from the opposite end device, transmitting the report parameters of the communication quality and the information about the report mode to the base station. Preferably, the report parameters of the communication quality and the information about the report mode are placed in the same message which is sent to the base station. According to the present invention, base stations can acquire the correct report mode of the communication quality of the mobile terminal, make a correct disposal accordingly and sequentially, solve the problem which has not been solved for a long time, and improve the interoperability and the run capability of the wireless communication networks.

Description

The mobile terminal in a wireless network

The method and apparatus of the communication quality report Field

The present invention relates to a method and apparatus for reporting to the base station based on the communication quality of wireless communication networks, and particularly to a mobile terminal in a wireless communication network. Background technique

The communication quality is a key performance indicator in wireless communication networks, the mobile terminal selects a base station that performs communication with the present embodiment the base station according to the communication quality between the mobile terminal and the base station is present, comprising a communication link with the communication path selection logic, determining a base station also comprises the mobile terminal an uplink and downlink coding and modulation scheme signal, etc., which in turn improves performance between the mobile terminal and the base stations, the QoS guarantee the user, ensure the normal operation of the wireless communication network.

The communications qualities includes a plurality of aspects, which may simply consider the wireless channel conditions, and the antenna gain of transmitter and receiver performance considerations may be taken into account. SNR (Signal to Noise power Ratio, SNR), carrier to interference plus noise ratio (carrier to interference noise ratio, Carrier to Interferernce plus Noise power Ratio, CIN), and signal to interference noise power ratio port (SINR dagger, Signal to interference plus Noise power ratio, SI R) parameters have been widely used to measure all of the signal received by the receiver, the intensity ratio between the desired signal and the interference signal. For example, when the SNR is large, indicating that all of the received signal, the desired signal is strong, can be relatively easily distinguished from the total received signal and separating the desired signal; when the SNR is small, indicating that all of the received signal, the useful signal weak, to be submerged in the interference signal, it is difficult to separate out. These parameters can be used to represent the communication quality of the channel receivers. Thus the wireless communication network has these parameters as an important measure of communication quality, the base station must examine the mobile terminal enters the network, handover, call channel state of each medium noise ratio or carrier to interference and noise ratio or a signal to interference noise ratio and other properties, to select its appropriate communication "channel.

Typically, the mobile terminal may measure directly to its peer device, e.g. a base station or a relay station, to the communication quality of the downlink communication thereto. For the IEEE 802.16e standard based on the Global ^: wave network access (World-wide Inter-operability for Microwave Access, WiMAX) wireless network, the mobile terminal and the like CINR quality parameters (SINR and SNR, etc.) are generally two communication measurement and reporting modes: normal mode and differential mode. After which, in the normal mode, the mobile terminal measures to the base station or the relay station to the CINR of the downlink channel of the mobile terminal, in accordance with a preset threshold value absolutely quantizing the CINR, then the quantized value to the base station; in differential mode after the mobile terminal measurement to a base station or a relay station to the current CINR a mobile terminal or a plurality of downlink channel, which is the last measure the CINR of the one or more channels compared characterizing the channel CINR in the form of differential changes in circumstances. Ordinary subcarrier allocation CINR report is available to the partial usage of subchannels (Partial Usage of SubChannd, PUSC) allocation of subcarriers and adaptive modulation and coding (Adaptive Modulation and Coding, AMC); and a differential CINR report only the AMC method is applied to .

In a WiMAX network, a mobile terminal during operation, can switch between the two reporting modes. CINR report information in both modes can mark a channel (Channel Quality Indicator CHannel, CQICH) in the same channel quality for transmission, uses six bits coding rule, where the five less important bits (Least Singnificant Bits, LSB ) carries CINR value in the two modes, the first most significant bit (most Singnificant bits, MSB) set to zero, as shown in FIG. Before switching mode, the base station issues a handover indication to the mobile terminal, and its local record of the mobile terminal ^ ^ report mode is mode after switching; mobile terminal after receiving the handover indication sent by the base station, which reports the switching mode, CINR report message and issues a mode switching station; CINR report after receiving the message, the subsequent processing in accordance with a reporting mode of the mobile terminal and recording CINR report message received by the base station. Notably, reports CINR of the mobile terminal does not report with the report is based mode; by the base station maintains the pattern, the base station can receive the default mode of the mobile terminal sends the handover indication, reporting and maintenance reports its CINR report message corresponding mode. This will cause a problem: For various reasons, the mobile terminal may not receive mode switching instruction from the base station, and then still be CINR report to the original default mode, the station received CINR report its maintenance mode does not report correspond. However, the base station can not know it, resulting in a model which parameters CINR misjudgment another mode parameter is based, in turn, it would be inappropriate depending on the error judgment processing. Obviously, this will reduce the WiMAX network interoperability and operational performance. But so far, including recommended practices document (Recommended Practice Document, RPD), including the draft and the various industry standards are not given a reasonable solution. SUMMARY

To solve the above drawbacks of the prior art, the present invention provides a method and a wireless communication network to the mobile terminal apparatus reports the communication quality of the base station. Mode mobile terminal transmits the communication quality parameters and report communication quality information reported to the base station; station communication quality report according to the received parameters and a communication mode quality report from the mobile terminal, and performs corresponding processing.

According to one aspect of the invention, there is provided a communication path for the downlink communication quality of the mobile terminal reports to the base station of the mobile terminal according to the terminal apparatus in a mobile terminal in a wireless communication network, wherein, comprising the steps of :... i acquires the communication quality report mode; ii reporting mode according to the communication quality and the received signal of the downlink reporting parameters from a peer device, generating the downlink communication path; the III the communication quality information reporting parameters and the reporting mode to the base station.

Preferably, the method comprises the step of step iii: iiil generate a communication quality report message, wherein the communication quality report message including the communication parameters and information shield traffic reports the reporting mode; the III2. communication quality report message to the base station.

According to another aspect of the invention there is provided a terminal device for the mobile terminal for receiving a report of a mobile terminal in a base station in a wireless communication network to the communication quality of the downlink communication path to the mobile terminal method, comprising the steps of: I. obtaining a communication mode quality report parameters and the reporting of the downlink communication path from the mobile terminal information; II parameters according to the communication quality report and said report mode information, corresponding processing.

Preferably, the method comprises the step I, the steps of: receiving the communication quality report message from the mobile terminal, wherein the communication quality report message includes a communication quality information report parameters and report mode; quality report from the communication the communication parameters and the quality report message reporting mode information extracted.

According to a third aspect of the present invention, there is provided an apparatus for a communication quality of the downlink communication path to the mobile terminal reports to the base station to the terminal apparatus of the present mobile terminal in a mobile terminal of a wireless communication network, comprising : reporting mode acquiring means for acquiring the communication quality report mode; report parameter generating means for reporting in accordance with the mode and the received signal from the downstream end of the device, generating a communication report parameter amount shield; report transmitting means for transmitting the communication quality information reporting parameters and the reporting mode to the base station.

Preferably, the apparatus further comprising a transmission report: Report message generating means for generating communication quality report message, wherein the communication quality report message comprising the communication parameters and information of the quality report reporting mode; report message sending means , for the communication quality report message to the base station to which it belongs.

According to a fourth aspect of the present invention, there is provided an apparatus for the peer mobile terminal reports the receiving mobile terminal in a base station apparatus in a wireless communication network, the communication quality of the downlink communication path to the mobile terminal, wherein, comprising: a report obtaining means, for obtaining a communication quality report parameters and report mode information from the mobile terminal; and a processing means for reporting parameters according to the communication quality report mode and the information corresponding processing.

Preferably, the report obtaining means further comprising: a report message receiving means for receiving from the mobile terminal communication quality report message, wherein said communication quality report message includes a communication quality information report mode and report parameters; extracting means , for extracting the communication quality parameters and the reporting mode reported from the communication quality information report message.

The present invention avoids the process of the mobile terminal reports the communication quality, the base station mode for reporting the mistaken report mode is another problem. Although the prior art has already been recognized this problem, but has been and there is no technical solution to this problem. And creatively present invention provides a better method and apparatus enables the base station to report the communication quality of the mobile terminal acquired message reporting the correct mode, and then make the corresponding correct address and solve this long outstanding interoperability and operational performance of technical problems, improve wireless communication network. BRIEF DESCRIPTION

By reading the following detailed description of the accompanying drawings of non-limiting embodiments, and other features, objects and advantages of the present invention will become more apparent:

FIG 1 shows a coding scheme based on a six-bit CQICH report information CIN conventional IEEE 802.16e standard;

FIG 2 according to one embodiment of the present invention, a schematic diagram of the topology of the cell the mobile terminal 2 under the jurisdiction of a base station;

FIG 3 shows only a particular Gen According to the present embodiment of the invention, a wireless communication network shown in FIG. 2, a flow diagram of a method for reporting the CINR of mobile station 2 1 terminal;

FIG 4 shows a schematic diagram of an encoding scheme CINR report a six-bit information in accordance with one particular embodiment of the present invention;

FIG. 5 shows a particular embodiment of the present invention, a schematic view of another six-bit coding scheme CINR report information;

FIG. 6 shows a block diagram of a wireless communication apparatus CINR network to another embodiment of the present invention, shown in Figure 2, the mobile terminal reports to the base station 1 2.

In the drawings, same or similar reference numerals are identical or similar to the representative member. detailed description

Referring to the drawings 2 to FIG. 5, described later in detail with four specific embodiments of the present invention is a method from the perspective of the system:

First embodiment

Figure 2, a schematic diagram of a mobile terminal within a cell under the jurisdiction of the base station 2 in accordance with the topology of a particular embodiment of the present invention. Wherein the wireless network is a WiMAX network. Those skilled in the art should appreciate that the present invention is not limited to the WiMAX network and the topology shown in FIG. 2, or other types of wireless network topology, the present invention is equally applicable.

FIG 3 illustrates a living embodiment of the present invention, a wireless communication network shown in FIG. 2, the mobile terminal 1 is a flowchart of the method for the base station 2 reports CINR. Ordinary skill in the art may be appreciated that base station according to the present embodiment are cited to the communication quality of the mobile terminal 2 is CINR of 1, which may be a previously described SINR, SNR, or other communication quality parameters.

Below with reference to FIGS. 2 and 3, a method according to the present invention, L is, the mobile terminal 1 to the base station 2 reports the downlink communication channel CINR will be described in detail. In the present embodiment, the mobile terminal 1 currently in use is a common CINR report mode, and since the current downlink channel is deteriorating communication quality and other reasons, the request to switch to differential mode to measure the communication quality of other channels. It is contemplated that the present invention is not limited to this example, the mobile terminal 1 can also be switched from the differential mode to the normal mode, or maintain its current report mode remains unchanged.

First, in step S10, the mobile terminal 1 to the base station 24 which acquires CINR report Gen used reporting mode.

In one instance, the mobile terminal 1 a request to switch to the active mode differential report.

Specifically, in step S100, the channel measurement report response (REPort-RSPonse, REP-RSP) message through the medium access control layer (Medium Access Control, MAC) of the mobile terminal a handover request to a base station transmits a reporting mode 2, the request to switch to differential mode.

Then, in step S200, the base station 2 from the mobile terminal 1 receives the mode switch request.

Next, in step S201, the base station 2 according to this mode switching request, generate a report indication message mode. In the present embodiment, the base station 2 may use a downlink subframe downlink resource mapping table (DL-MAP) in the CQICH allocation information element (CQICH Allocation IE) indicating the receiving mobile terminal 1 is switched to the differential mode indication information. Preferably, the indication information further includes information indicating how the mobile terminal 1 in the uplink channel information reports CINR, for example slots used, subcarrier and the like.

In another case, the base station 2 which want to optimize the downlink communication path to the mobile terminal 1, the mobile terminal 1 indicates its active switch to differential mode ■ ^ report. So, there is no need of the above-described steps S100 and S200. In step S201, the base station 2 generates the active mode report indication message, the message may be similar to step S201, a message, which is not repeated herein.

Subsequently, in step S202, the base station 2 generated the report mode indication message transmitted to the mobile terminal 1, for example, transmits the CQICH allocation information element downlink subframe of a downlink resource mapping table (DL-MAP) in the mobile via the broadcast 1 terminal. Those skilled in the art will appreciate, the base station 2 may use other methods of transmitting the indication information to the mobile terminal 1, the transmission method is not particularly be discussed herein.

Then, in step S101, the mobile terminal 1 receives the base station transmits the report mode 2 instruction information, and from its base station 2 indicating that it is switched to the differential mode CINR report, preferably, the mobile terminal 1 to the base station in differential mode 2 instruction set for a given communication quality reporting mode currently used.

Those skilled in the art will appreciate that the base station 2 to the mobile terminal reports a mode switch request has the right to decide that the mobile terminal may not agree to a mode switching request originated. In this case, the base station 2, after receiving the report from the mobile terminal 1 of mode switching request, not an instruction for switching to the mobile terminal 1. The mobile terminal does not receive a switching instruction from the base station, it will still be maintained, for example, periodic report CINR reported in the normal mode, in step S10, the mobile terminal 1 to the current communication quality as the communication report mode reporting mode quality.

Then, in step S11, the mobile communication terminal 1 according to the state of the downlink acquired in step S10 to the differential CINR report mode and the base station 2 to the mobile terminal 1 generates a reporting parameters to be reported CINR. The mobile terminal 1 may report only the parameters Gen 2 via a base station measure the CINR of the preamble symbol in the channel (a Preamble) transmitted downlink signal or a downlink channel training sequence (the midamble or pilot subcarrier) and the like, to generate a required CINR of the downlink communication, That report communication quality parameters.

Embodiment, the mobile terminal 1 is switched to the mode in the present embodiment the differential reports, e.g., CINR information which is preferably five differentially communication quality to the selected base station 2 reports twelve logical channels of the downlink channel. Then, in step S110 (in FIG. 3, not shown), the mobile terminal 1 measures the CINR of the current of the five downlink channel; Then, in step S111 (in FIG. 3, not shown), the mobile terminal 1 with CINR measured the last five channels are compared, and the change of the CINR characterized sequentially five selected channels using five bits, for example, one bit symbol is 1, indicating the downlink channel bits corresponding to improve CINR ldB; other bit symbol is 0, the downlink channel indicates the other bits corresponding to CINR reduced ldB. These five bits are generated CINR report parameters, i.e., the communication quality report parameters. This description is only illustrative CINR code generation rules differential reporting mode, the actual differential reporting mode CINR code generation rule is not subject to the present specification limits, those skilled in the art can vary the quantization according to the number of channels and CINR actual reported determine a corresponding differential encoding standard generation rules, which are within the coverage of the claims of the invention.

In another case, if the mobile terminal 1 needs to report CINR general, shellfish "J, at step S 110 '(not shown in FIG. 3), the mobile terminal 1 through the downlink signal for a selected channel the preamble symbol or training sequence to obtain CINR of the downlink channel; then, in step Sl ll, (in FIG. 3, not shown), the mobile terminal. 1 CINR based on a predetermined one of CINR width value B (unit of dB) of the channel five bits for quantization threshold may be the access network when the mobile terminal 1 and the base station 2 agreement, other methods may be predetermined for example, the quantization method may use the following formulas:

≤ (n- B), 0 < «<31 (1) Wherein, CINR CINR is based on the actual measurement channel, channel preamble symbol or training sequence obtained (in dB), B is the aforementioned predetermined CINR threshold values ​​(in dB). Then, the quantized value is converted to a length of five bits of binary data, the five bits to obtain the CINR report parameters, i.e., the communication quality reporting parameters. This description example only CINR of encoding rules in the normal reporting mode, the actual coding rule CINR normal reporting mode is not limited by this description, the focus of which is discussed in the present art is well known in the art, the present invention is not.

Next, in step S 12, the parameter information indicating the mobile terminal 1 CINR reports and the generated CINR reporting mode to be used is 1 to the base station.

Preferably, in step S 120, the mobile terminal 1 generates CINR report message, i.e., the communication quality report message. The report message includes information indicating CINR report parameters generated in step S 11 and CINR reporting mode to be used. In the present embodiment, the mobile terminal 1 uses six bits of information in the CQICH to carry CINR report message. Specifically, the mobile terminal 1 using a CQICH after five six bits LSB in bearer generating CINR report parameters, and using the first indication information indicates a CINR MSB reporting mode. Preferably, FIG. 4, according to one embodiment of the present invention, a schematic view of six-bit coding scheme CINR report information. Wherein, the MSB symbol is 0, indicating CINR report parameter of the CINR report message is the quantized value of the CINR corresponds to a normal reporting mode a predetermined channel; the MSB sign 1 indicates CINR report parameter of the CINR report message corresponding in five selected channels of differential reporting mode change value of the CINR. In the present embodiment, since the mobile terminal 1 is switched to the differential reporting mode, the mobile differential reporting mode message 4 corresponding to the terminal 1 generates a CINR report message as shown in FIG. In another embodiment, FIG. 5 shows a particular embodiment of the present invention, a schematic view of another six-bit coding scheme CINR report information. Wherein, MSB of the symbol corresponding to the normal reporting mode 1; 0 corresponds to the MSB of symbol differential report mode. Both coding schemes CQICH does not change the length of the message in the existing protocol. Notably, the above two embodiments Advertisement message Gen 4 by way of example only, the present invention is not limited to these two reporting message formats, those of ordinary skill in the art can in the present invention and the teachings of the specification, in accordance with no actual demand to develop other reporting message formats inventive labor, these messages are in the claims of the invention within the scope.

Subsequently, in step S121, the mobile terminal 1 to the base station 2 transmits the CINR report message generated in step S120. Specifically, the mobile terminal 1 according to how a CQICH allocation information element related information from the base station 2 included in the mobile terminal indicating an uplink channel CINR report, for example slots used, subcarrier and the like, the CINR reports after mapping message, coding and modulation, on the respective subcarriers and the timeslots CINR report message to the base station 2. By way of example only do the present specification, the specific process of the transmission to those skilled in the art and are not the focus of discussion of the invention.

Moreover, those skilled in the art should understand that, in step S12, the mobile terminal 1 may, for example, are transmitted to other information indicating the manner CINR CINR reports and reporting parameter generation mode to be used to the base station 1 uses.

Next, in step S21, the base station 2 obtains CINR report parameter from the mobile terminal 1 and CINR information report mode.

Preferably, in the step S210, the base station 2 receives the CINR report message from the mobile terminal 1, the message contains parameters and report CINR CINR report mode information. Then, in step S211, the base station 2 extracts the indication information and reporting parameters CINR CINR CINR report mode information from the report message. Specifically, in the present embodiment, CINR report message format shown in Figure 4, the base station 2 extracts the parameters from the last five reports CINR CINR the LSB's, and extracts CINR CINR report from the MSB's of a instructions mode.

Subsequently, in step S22, the base station 2 according to the indication information and reporting parameters CINR CINR report mode, performs corresponding processing. Specifically, in the present embodiment, the mobile terminal 1 has been switched to differential mode, information indicating the symbol which CINR report mode is 1, it means that the mobile CINR reporting mode terminal 1 is a differential reporting mode, the base station 2 knows the mobile terminal 1 has switched to the mode indicated by the base station, based on the difference CINR reports reporting parameters of the mobile terminal 1 performs downlink communication to the mobile terminal 1 is adapted, for example, selected from a five channel selection CINR as a superior which is a downlink channel, and selects a downlink modulation and coding scheme and the like.

Embodiment, the mobile terminal 1 does not receive the instruction from the base station 2 which is switched to the mode switching differential reporting mode indication message, it is still common for CINR reports based on the reporting mode In another embodiment, information indicating the symbol pattern thereof is reported CINR 0, it means that the mobile CINR reporting mode terminal 1 is a normal reporting mode, the base station 2 knows the mobile terminal 1 is not switched according to their indications to differential mode, then it will re-indication message transmitted to the mobile reporting mode terminal 1, indicates that switches to differential mode; CINR reports or continue according to the normal mode of the mobile terminal 1, for setting an appropriate downlink communication scheme, such as the choice of coding and modulation schemes.

The present invention is not limited to the mobile terminal device 1 side is the case the base station 2, the communication quality information of the downlink communication path to the mobile terminal 2 reports the base station 1; when it is equally applicable to the mobile terminal 1 during cell handover, the serving base station 2 reports its peer device - non-serving base station 2, the mobile terminal according to the communication quality information of the downlink communication path 1; which also applies to the relay network, the mobile terminal 1 is within the coverage of the relay station 3, the mobile terminal 1 through the relay station 3 reports its ends to the base station device 2 - the communication quality of the relay station downlink communication path to the mobile terminal 3 of the information. Those of ordinary skill in the art can in light of the present invention without creative efforts to develop specific embodiment is adapted to the actual needs of the network. According to a particular embodiment of the above embodiments of the method of the present invention system was described in detail. The following system of the device from the perspective of specific embodiments of the present invention will be described in detail.

Second embodiment

FIG. 6 shows a block diagram of a wireless communication apparatus CINR network to another embodiment of the present invention, shown in Figure 2, the mobile terminal reports to the base station 1 2.

In the present embodiment, the mobile terminal 1 comprises means 10 for reporting to the base station 2 to 2 L of the communication quality of the downlink communication path 1 of the present mobile terminal, wherein the acquisition device 100 comprises reporting mode, reporting parameter generating apparatus 101, report transmitting means 102. Wherein the report mode acquiring means 100 includes a first transmitting means 1000 and a first receiving means 1001; Report of a second parameter generating apparatus 101 includes a measuring device 1010 and comparator 1011; report transmitting means 102 comprises a report message generation means 1020 and transmits a report message apparatus 1021. The base station 2 includes a base station for receiving a report of the mobile terminal 2 to the communication quality of the downlink communication path L 1 of the mobile terminal device 20, wherein the handover request comprises receiving means 200, message generation means 201 indicating indication message sending means 202 , report obtaining means 203, processing means 204. Wherein the report includes a report obtaining means 203 message receiving means 2030 and extracting means 2031.

Below with reference to FIGS. 2 and 6, the apparatus and the workflow L CINR communication channels in accordance with the present invention, the mobile terminal 1 to the base station 2 reports the downlink. For simplicity, the mobile terminal 1 currently in use is a common CINR report mode, since the communication quality degradation of its current downlink reasons, it requests to switch to differential mode. It is contemplated that the present invention is not limited to this example, the mobile terminal 1 can also be switched from the differential mode to the normal mode, or maintain its current report mode remains unchanged. Ordinary skill in the art may be appreciated that base station according to the present embodiment are cited to the communication quality of the mobile terminal 2 is CINR of 1, which may be measured according to the foregoing parameters SINR, SNR, or other communication quality.

First, the report mode acquiring apparatus which acquires the base station 100 2 reports CINR report mode used.

In one instance, the mobile terminal 1 a request to switch to the active mode differential reporting. Specifically, the mobile terminal device 1 transmits a first medium access control layer by 1000 (Medium Access Control, MAC) channel measurement report response (REPort-RSPonse, REP-RSP) transmits a handover request to the base station reporting mode 2, the request to switch to differential mode.

Then, the handover base station 2 receives the request receiving means 200 of the mobile terminal 1 from the mode switching request.

Subsequently, indicating a handover request message generation means 201 according to this model, generate a report indication message mode. In the present embodiment, the message indicating means 201 may be used to generate a downlink subframe CQICH allocated downlink resources map (DL-MAP) information element of

(CQICH Allocation IE) indicating the receiving mobile terminal 1 is switched to the differential mode indication information. Preferably, the indication information further includes information indicating how the mobile terminal 1 in the uplink channel information reports CINR, for example slots used, subcarrier and the like.

In another case, the base station 2 which want to optimize the downlink communication path to the mobile terminal 1, the mobile terminal 1 indicates its active switch to differential mode report. Then, the mobile terminal apparatus 10 is a reporting mode 100 need not obtain the above-described first transmission means 1000 means 20 does not require the above-described base station device 2 handover request receiving means 200. At this time, a message indicating generation device 201 (not shown in FIG. 6) the active mode to generate a report indication message, the message may be similar to the above process a message, which is not repeated herein.

Then, a message indicating means 202 transmits the generated report mode indication message to the mobile terminal 1, for example, by broadcasting the downlink resources of the downlink sub-frame mapping table

CQICH allocation information element (DL-MAP) are transmitted to the mobile terminal. Those skilled in the art will appreciate, the base station may use other methods of instruction information to the mobile terminal 1, the transmission method is not particularly be discussed herein.

Then, the mobile terminal device 1001 receives the first device 10 1 receives the base station transmission mode 2 reporting indication information, and from its base station 2 indicates which mode is switched to the differential CINR report, preferably, the apparatus 10 of the mobile terminal 1 further setting means 103 comprises a

(Not shown in FIG. 6) the differential mode of the base station 2 indicates its current reporting mode setting used.

Those skilled in the art will appreciate that the base station 2 to the mobile terminal reports a mode switch request has the right to decide that the mobile terminal may not agree to a mode switching request originated. In this case, the base station 2, after receiving the report from the mobile terminal 1 of mode switching request, not an instruction for switching to the mobile terminal 1. The mobile terminal does not receive a switching instruction from the base station, it will still be maintained, for example, periodic CINR reports in the normal reporting mode, reporting its current mode is not changed, then the execution device 104, the mobile terminal 1 (FIG. 6, not shown) to report the current communication mode quality reporting mode as the communication quality.

Then, the report parameter generating apparatus 101 in the state of the downlink communication apparatus 100 acquires the differential CINR report mode and the base station 2 to the mobile terminal 1 according to the report acquisition mode, the parameters needed to generate reports CINR report. The mobile terminal 1 through base station 2 measures the CINR of the preamble symbol in the channel (a Preamble) downlink channel transmitting the downlink signal or training sequence (the midamble or pilot subcarrier) and the like, to generate the required CINR report downlink communication parameters.

Embodiment, the mobile terminal 1 is switched to the mode in the present embodiment the differential reports, e.g., which differentially station 2 reports to the communication quality of the twelve five logical channels is preferably selected downlink channel downlink CINR information. Second measurement means parameter generating apparatus 101 reports 1010 the measured CINR of the five current downlink channel; then, the comparing means 1011 which is a measurement of the CINR of the five channels are compared and characterized using five bits sequentially the five changes CINR selected channel, for example, one bit symbol is 1, indicating the downlink channel bits corresponding to CINR improved ldB; other bit symbol is 0, indicating that the other bits corresponding to a downlink channel CINR reduced ldB. This is the five bits generated CINR report parameters, i.e., the communication quality reporting parameters. This description is only illustrative CINR code generation rules differential reporting mode, the actual differential reporting mode CINR code generation rule is not subject to the present specification limits, those skilled in the art can vary the quantization according to the number of channels and CINR actual reported determine a corresponding differential encoding standard generation rules, which are within the coverage of the claims of the invention.

In another case, if the mobile terminal 1 performs the normal CINR report, the report parameter generating means 101 comprises a first measuring device 1010, and a quantization means 1011 ,. The first measuring device 1010, the CINR of the downlink channel is obtained through the training or preamble symbol sequence of a downlink signal for a selected channel; Subsequently, the quantization unit 1011, the channel based on a predetermined threshold CINR value B (unit of dB) the five bits for CINR quantization. The threshold may be an access network when the mobile terminal 1 and the base station 2 agreement, other methods may be predetermined. For example, the quantization method may use the following formula:

Quantization value = ≤ (nB), 0 < «<31 (1) Wherein, CINR CINR is based on the actual measurement channel, channel preamble symbol or training sequence obtained (in dB), B is the aforementioned predetermined CINR threshold values ​​(in dB). Then, the quantized value is converted to a length of five bits of binary data, which is the five bits to obtain CINR report parameters, i.e., the communication quality reporting parameters. This description example only CINR of encoding rules in the normal reporting mode, the actual coding rule CINR normal reporting mode is not limited by this description, the focus of which is discussed in the present art is well known in the art, the present invention is not.

Next CINR indication information reporting parameters, report transmission unit 102 and the generated CINR reporting mode to be used to the base station 1.

Preferably, the message generation means 1020 generates a report CINR report message. The report message includes indication information reporting parameters CINR report parameter generating apparatus 101 generates and CINR reporting mode to be used. In the present embodiment, the mobile terminal 1 six-bit information is represented in the CQICH CINR report message. Specifically, after the report message generation means 102 generates a carrier using five LSB Gen. 4 CINR report parameters, and using the first indication information indicates a CINR MSB reporting mode. Preferably, FIG. 4, according to one embodiment of the present invention, a schematic view of six-bit coding scheme CINR report information. Wherein, the MSB symbol is 0, indicating CINR report parameter of the CINR report message is the quantized value of the CINR corresponds to a normal reporting mode a predetermined channel; the MSB sign 1 indicates CINR report parameter of the CINR report message corresponding in five selected channels of differential reporting mode change value of the CINR. In the present embodiment, since the mobile terminal 1 is switched to differential mode report, the mobile differential reporting mode message 4 corresponding to the terminal 1 generates a CINR report message as shown in FIG. In another embodiment, FIG. 5 shows a particular embodiment of the present invention, only a schematic view of another six-bit coding scheme CINR information report Gen. Wherein, MSB of the symbol corresponding to the normal reporting mode 1; 0 corresponds to the MSB of symbol differential report mode. Both coding schemes CQICH does not change the length of the message in the existing protocol. Notably, two or more report message in the embodiment by way of example only, the present invention is not limited to these two reporting message formats, those of ordinary skill in the art can in the present invention and the teachings of the specification, based on the actual network without creative efforts to develop other reporting message formats, the messages are in the claims of the invention within the scope.

Subsequently, the report message generating means 1021 in the apparatus 1020 generates a report message CINR report message to the base station 2. Specifically, the transmitting device 103 can report message according to how a CQICH allocation information element related information from the base station 2 included in the mobile terminal indicating an uplink channel CINR report, for example slots used, subcarrier and the like, the after mapping CINR report message, coding and modulation, on the respective subcarriers and the timeslots CINR report message to the base station 2. By way of example only do the present specification, the specific process of the transmission to those skilled in the art and are not the focus of discussion of the invention.

Moreover, those skilled in the art should understand that, for example, report the transmission device 102 transmits information indicating CINR report transmission parameters are generated in other ways and CINR reporting mode to be used to the base station 1 may also be employed.

Next, base station apparatus 20 2 report acquisition means 203 acquires CINR report parameter from the mobile terminal 1 and CINR information report mode.

Preferably, the receiving means 2030 receives the message reporting the CINR report message from the mobile terminal 1, the message contains parameters and report CINR CINR report mode information.

Then, extraction means 2031 extracts indication information and reporting parameters CINR CINR CINR report mode information from the report message. Specifically, in the present embodiment, CINR report message format shown in Figure 4, the extraction device extracts the parameter from the last five reports CINR CINR the LSB's, and extracts CINR CINR report from the MSB's of a instructions mode.

Subsequently, the information processing apparatus 204 according to the instruction and reporting parameters CINR CINR report mode, performs corresponding processing. Specifically, in the present embodiment, the mobile terminal 1 has been switched to differential mode, information indicating the symbol which CINR report mode is 1, it means that the mobile CINR reporting mode terminal 1 is a differential reporting mode, the base station 2 knows the mobile terminal 1 this station has switched to the mode indicated by the processing device 205 in accordance with a differential CINR reports reporting parameters of the mobile terminal 1, the mobile terminal 1 performs downlink communication adapter, for example, the selected channel selected from five superior CINR as a downlink channel.

Embodiment, the mobile terminal 1 does not receive the message indicating that it is switched to the differential mode Chi mode from the base station handover indication message 2, it is still common for CINR reports based on their report mode indication information symbol CINR report mode In another embodiment, is 0, it means that the mobile CINR reporting mode terminal 1 is a normal reporting mode, the base station 2 knows the mobile terminal 1 is not switched according to their indications to differential mode, then the processing device 205 will re-indication message to send a report mode of the mobile terminal 1, indicating that it is switched to differential mode, or to continue to move according to the normal mode CINR reports the terminal 1, for setting an appropriate downlink communication, such as modulation and coding schemes.

Those skilled in the art will appreciate, reports CINR of the present invention is not limited, it may be applied to the communication of other quality parameters such as SNR and SINR reporting.

The present invention is not limited to the mobile terminal device 1 side is the case the base station 2, the communication quality information of the downlink communication path to the mobile terminal 2 reports the base station 1; when it is equally applicable to the mobile terminal 1 during cell handover, the serving base station 24 Gen 2 which report to the communication quality information of the downlink communication path to the peer device of the present non-serving base station the mobile terminal 1; which also applies to the relay network, the mobile terminal 1 is within the coverage of the relay station 3, the mobile terminal 1 reports the communication quality information of the relay peer device 3 downstream communication path to the mobile terminal 1 through the relay station 2 to the base 3 of the case. Those of ordinary skill in the art can in light of the present invention without creative efforts to develop specific embodiment is adapted to the actual needs of the network. Though the specific embodiments of the invention have been described, it is understood that the present invention is not limited to the specific embodiments, those skilled in the art can make various variations and modifications within the scope of the appended claims.

Claims

Claims
A method for a communication amount shield downlink communication path to the mobile terminal reports the base station apparatus to the end of the present mobile terminal in a mobile terminal of a wireless communication network, comprising the steps of:
1. acquires the communication quality report mode;
. Ii mode and according to the reports received from the downlink signal the peer device, generating the downlink communication quality of the communication path reporting parameter;
III. transmits the communication quality parameters and report the information to the base station reporting mode.
2. The method according to claim 1, wherein said step iii further comprises:
1111. Communication quality report message generation, wherein the communication quality information report message comprising the communication parameters and the quality report reporting mode;
1112. The communication quality report message to the base station.
3. The method of claim 1 or claim 2, wherein said step i further comprises:
11. report mode receiving indication message from the base station;
12. indication message reporting mode according to the determined reporting mode.
4. The method according to claim 3, characterized in that, prior to said step il further comprising:
- a handover request message transmitted to the base station reporting mode.
The method according to claim 3 or claim 4, wherein, after said step i further comprises:
- The reporting mode indication message reporting mode is set as indicated by current communication quality reporting mode.
6. The method according to claim 5, characterized in that, said step i further comprises:
0. The quality of the current communication mode as the communication report reports an amount of shield pattern.
7. A method according to any one of claim 6 claim, wherein said communication quality comprises a carrier to interference and noise ratio, the amount of communication shield downstream communication report mode comprises a common carrier to interference plus noise ratio reports, and / or differential carrier to interference plus noise ratio report.
8. The method according to claim 7, wherein the report mode comprises common carrier to interference plus noise ratio report, said step ii comprises:
- measurement of the downlink carrier to interference plus noise ratio of a communication path;
- according to a predetermined carrier to interference plus noise ratio threshold, the carrier to interference plus noise ratio of the downlink communication path and quantized to obtain quantized values, the quantization parameter value of the communication quality report, as the downlink communication path.
9. A method according to claim 78, wherein the report mode comprises a differential carrier to interference plus noise ratio report, said step ii comprises:
- measuring the current downlink communication path, carrier to interference plus noise ratio;
- comparing the current downlink communication path, carrier to interference plus noise ratio of a difference between the measured downlink communication path to the carrier to interference plus noise ratio, as a result of comparing the communication quality report downlink communication path parameter.
10. The method according to claim 9, characterized in that the peer device comprises a base station and / or relay stations.
11. The method of 1 to 10 according to any one of the preceding claims, wherein said network comprises a WiMAX wireless communication network.
12.- The method of the peer terminal types for the mobile terminal reports the receiving mobile station in a wireless communication network in the communication quality of the downlink communication path to the mobile terminal, comprising the steps of:
I. acquires the communication quality of the downlink communication path from the mobile terminal, information reporting parameters and report mode;
II. Detailed reports the communication quality parameters and the reporting mode information, corresponding processing.
13. The method according to claim 12, wherein said step I comprises: - receiving the communication quality report message from the mobile terminal, wherein the communication quality report message includes a communication quality reports and report parameters pattern information; - extracting the communication quality parameters and the reporting mode reported from the communication quality information report message.
14. The method of claim 12 or claim 13, wherein, before the step I further comprising:
A. generating a report mode indication message;
B. sending the reporting mode indication message to the mobile terminal.
15. The method according to claim 14, wherein, prior to said step A further comprises:
- receiving a report from the mobile terminal mode handover request message;
Said step A further comprises:
- according to the mode switching request message, generating the reporting mode indication message.
12 to 15 16. A method according to any one of the preceding claims, wherein said step II further comprises:
- If the same reporting mode reported the extracted mode information indicated by the reporting mode indication message reporting mode indicated by the corresponding processing comprises: reporting parameter according to the communication quality, the downlink to the mobile terminal communication adapter;
- reporting mode if the extracted information report mode indicated by the mode indicator reporting mode message reporting indicated different, the corresponding processing comprises any of the following:
The re-transmission mode to the mobile terminal reporting indication message, indicating that switches reporting mode;
Reporting mode of the communication quality report parameters and reporting the extracted mode information indicated by the mobile terminal according to the report, adapted to perform downlink communication of the mobile terminal.
12 to 16 17. A method according to any one of the preceding claims, wherein said communication quality comprises a Carrier to Interference plus reporting mode than the communication quality of the downlink communication includes noise common carrier to interference plus noise ratio report, and / or differential carrier to interference plus noise ratio report.
12 to 17 18. The method according to any one of the preceding claims, characterized in that said base station comprises / or the relay station terminal device.
19. The method according to any one of claims 12 to 18, wherein the wireless communication network comprises a WiMAX network.
20. An apparatus for a communication quality of the downlink communication path to the mobile terminal reports to the base station to the terminal apparatus of the present mobile terminal in a mobile terminal of a wireless communication network, comprising:
- reporting mode acquisition means for acquiring the communication quality report mode;
- report parameter generating means for reporting said quality of communication mode and reports the downlink signal parameters from a peer device, according to the received generated;
- report transmitting means for transmitting the communication quality information reporting parameters and the reporting mode to the base station.
21. The apparatus according to claim 20, wherein said report transmission apparatus comprising:
- Report message generation means for generating communication quality report message, wherein the communication quality report message including the communication parameters and information of the quality report reporting mode;
- report message transmitting means for transmitting the communication quality report message to the base station to which it belongs.
22. The apparatus of claim 20 or claim 21, wherein said reporting mode acquiring means further comprises:
- a first receiving means for receiving a report from the base station mode indication message; - a first determining means, according to the report message for indicating the mode determining reporting mode.
23. The apparatus according to claim 22, wherein said reporting mode acquiring means further comprises:
- a first transmitting means for transmitting a reporting mode to the base station handover request message.
24. The apparatus of claim 22 or claim 23, wherein said reporting mode acquiring means further comprises:
- setting means for reporting said mode indication message indicated by the report mode is set to the current communication quality reporting mode.
25. The apparatus 20-1 according to any of claims 24, wherein the apparatus further comprises:
- execution means, the current communication quality reporting mode as the communication mode quality reporting.
20 to 25 26. The apparatus according to any one of claims, wherein said communication quality comprises a Carrier to Interference plus reporting mode than the communication quality of the downlink communication includes noise common carrier to interference plus noise ratio report, and / or differential carrier to interference plus noise ratio report.
27. The apparatus according to claim 26, wherein said reporting mode comprises common carrier to interference plus noise ratio reports, the report parameter generating apparatus comprising:
- a first measuring means for measuring noise ratio of the downlink communication path carrier to interference;
- quantizing means for more than a threshold value, the carrier to interference plus noise ratio of the downlink communication path in accordance with predetermined quantizing carrier to interference plus noise and to give a quantized value, the quantized value as the communication quality report parameters.
28. The apparatus of claim 26 or claim 27, wherein the report mode comprises a differential carrier to interference plus noise ratio reports, the report parameter generating apparatus comprising:
- second measuring means for measuring the current downlink communication path carrier 4 and in particular the dry strength ratio of the acoustic port p Sang;
- comparison means for comparing the magnitude of the current downlink communication path carrier to interference plus noise ratio of the carrier to interference plus noise ratio of the last measured downlink communication path, as a result of comparing the communication quality report parameters.
29. The apparatus of one of claims 20 to 28 according to any of the preceding claims, wherein the peer device comprises a base station and / or relay stations.
30. The apparatus 20-1 according to any of claim 29, wherein the wireless communication network comprises a WiMAX network.
31.- species for the base station receiving mobile terminal reports in a wireless communication network in which the shift, comprising: ',, - report acquisition means for acquiring communication quality report parameters and report mode information from the mobile terminal;
- processing means for reporting parameters according to the communication quality report mode and the information corresponding processing.
32. The apparatus according to claim 31, wherein said report obtaining means comprises:
- report message receiving means for receiving from the mobile terminal communication quality report message, wherein said communication quality report message includes a communication mode quality report parameters and reporting information;
- extracting means for extracting the communication quality parameters and the reporting mode reported from the communication quality information report message.
33. The apparatus of claim 31 or claim 32, wherein the apparatus further comprises:
- indication message generating means for generating a report mode indication message;
- indication message transmitting means for transmitting the report to the mobile terminal mode indication message.
34. The apparatus according to claim 32, wherein the apparatus further comprises:
- switching request receiving means for receiving a report from the mobile terminal mode handover request message;
The indication message generating means further configured to:
- according to the mode switching request message, generating the reporting mode indication message.
31 to 34 35. The apparatus of any one of claims, wherein said processing means further configured to:
- If the same reporting mode reported the extracted mode information indicated by the reporting mode indication message reporting mode indicated by the corresponding processing comprises: a communication quality in accordance with the reporting parameters, for the mobile terminal adapted for downlink communication;
- different reporting mode if the extracted information report mode indicated by the mode indication message reporting instructed reporting mode, at the corresponding processing comprises any one of: re-transmitting the reporting mode to the mobile terminal indication message, indicating that switches reporting mode;
The reporting mode to continue to report the communication quality parameters and reporting the extracted mode information indicates, for downlink communication adapter.
36. A device according to any of 31 to 35 claims, characterized in that said communication quality report mode comprises a carrier to interference ratio plus the communication quality of the downlink communication includes noise common carrier to interference plus noise ratio report, and / or differential carrier to interference plus noise ratio report.
37. The apparatus of one of claims 31 to 36 in any of the preceding claims, wherein the peer device comprises a base station and / or relay stations.
38. A device according to any of 31 to 37 claims, characterized in that said wireless communication network comprises a WiMAX network.
39. - kind of mobile terminal in a wireless communication network, characterized by comprising means 20-1 according to any of claim 30.
40. - kind of wireless communication network base station, comprising means 31-1 according to any of claim 37.
PCT/CN2008/001315 2008-07-15 2008-07-15 Method and device for a mobile terminal in a wireless network to report the communication quality WO2010006463A1 (en)

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