CN101237707A - A method for detection inter-frequency interference cell in reselection or switching - Google Patents
A method for detection inter-frequency interference cell in reselection or switching Download PDFInfo
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- CN101237707A CN101237707A CNA2008100824947A CN200810082494A CN101237707A CN 101237707 A CN101237707 A CN 101237707A CN A2008100824947 A CNA2008100824947 A CN A2008100824947A CN 200810082494 A CN200810082494 A CN 200810082494A CN 101237707 A CN101237707 A CN 101237707A
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Abstract
The invention discloses a method used to detect same frequency interference cell during reselection or switching. The method comprises the following steps: a terminal which resides in a home cell periodically detects the measurement result of the received signal code power in an adjacent cell; if the terminal needs to carry out cell reselection or judges according to a network side command that cell switching is needed to carry out, the terminal retains the up to date measurement result of the received signal code power (RSCP) in the home cell; finally, all cells in the home cell sequenced according to an RSCP value are taken as the adjacent cells used for reselecting or switching an object cell.
Description
Technical field
This invention relates to mobile communication technology, and particularly the TD-SCDMA terminal is eliminated the co-channel interference technology in the 3G (Third Generation) Moblie technology, is exactly the method that detects inter-frequency interference cell in gravity treatment of a kind of TD-SCDMA terminal or the handoff procedure specifically.
Background technology
In order to improve the availability of frequency spectrum and power system capacity, TD-SCDMA has adopted the identical networking scheme of N frequency.Though the identical networking scheme has improved the availability of frequency spectrum and power system capacity, introduced co-channel interference but for the descending task of terminal.
In the prior art, the adjacent cell relation information that terminal can obtain Serving cell by the system message or the measurement control messages of network terminal transmission, thereby obtain the inter-frequency interference cell information of Serving cell, terminal then can be passed through interference cancellation algorithm, eliminates the co-channel interference of the descending task of terminal.
But terminal owing to also do not obtain the adjacent cell relation information of Target cell from network terminal, also just can't obtain the inter-frequency interference cell information of Target cell in carrying out sub-district gravity treatment or handoff procedure.
As shown in Figure 1, the sub-district gravity treatment is carried out in the terminal decision, obtain the adjacent cell relation information of Target cell from network terminal before, terminal need receive the descending master scheduling block of information (MIB) of Target cell from network terminal, scheduler module (SB), measuring control information system messages such as (SIB12) under measuring control information under the broadcast idle mode (SIB11) or the broadcasting connection mode could determine whether can reside in the Target cell of this gravity treatment, and obtain the definite adjacent cell relation information of this Target cell.As shown in Figure 2, carry out in the direct-cut operation in the network requirement terminal, terminal obtains the adjacent cell relation information of Target cell from network terminal before, terminal at first 1) the descending FPACH channel of decoding Target cell; 2) downlink data of receiving target sub-district, judge then and Target cell whether synchronous on, finally obtain the measurement control messages of system, just can obtain the adjacent cell relation information of switching target small area.As shown in Figure 3, carry out in the baton handover process in the network requirement terminal, before the adjacent cell relation information of network terminal acquisition Target cell, at first the decode downlink data of Target cell of terminal, judge then and Target cell whether synchronous on, the measurement control messages of final acquisition system just can obtain the adjacent cell relation information of switching target small area.
Therefore, how to make terminal in carrying out sub-district gravity treatment or handoff procedure, obtain from network terminal before the adjacent cell relation information of new Target cell, the problem that correctly obtains the inter-frequency interference cell information of Target cell becomes that terminal is correctly decoded system information so that the key of sub-district gravity treatment or handover success.
Summary of the invention
The purpose of this invention is to provide a kind of method that is used for sub-district gravity treatment or handoff procedure detection inter-frequency interference cell, to guarantee that terminal is in carrying out sub-district gravity treatment or handoff procedure, can correctly obtain the inter-frequency interference cell information in sub-district gravity treatment or the handoff procedure, thereby the counteracting co-channel interference guarantees the sub-district gravity treatment or switches to carry out smoothly.
For realizing purpose of the present invention, the invention provides a kind of method that is used for sub-district gravity treatment or handoff procedure detection inter-frequency interference cell, this method may further comprise the steps: step S1: terminal is retained in received signal code power measurement result up-to-date on the former sub-district; Step S2: according to this up-to-date received signal code power measurement result, terminal is determined the information of adjacent cells of possible Target cell; Step S3: according to the information of adjacent cells of determined possible Target cell, terminal obtains the inter-frequency interference cell of Target cell in gravity treatment or the handoff procedure.
Wherein according to this up-to-date received signal code power measurement result, terminal determines that the step of the inter-frequency interference cell information of Target cell can be: all identical with Target cell dominant frequency point on former sub-district sub-districts are sequenced preface according to up-to-date RSCP measurement result, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0 (not containing Target cell); All sub-districts on the former sub-district are sequenced preface according to up-to-date RSCP measurement result, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell (not containing Target cell) on the non-TS0 time slot of Target cell;
By technique scheme, the present invention has realized terminal in carrying out reuse adoption process, obtains from network terminal to obtain the inter-frequency interference cell information of Target cell before the information of adjacent cells of Target cell, thereby is correctly decoded the system message from Target cell; In carrying out direct-cut operation, obtain from network terminal to obtain the inter-frequency interference cell information of Target cell before the adjacent cell relation information of Target cell, thereby be correctly decoded the FPACH channel of Target cell and the downlink data of correct receiving target sub-district; In carrying out the baton handover process, obtain from network terminal to obtain the inter-frequency interference cell information of Target cell before the adjacent cell relation information of Target cell, thus the downlink data of correct receiving target sub-district;
Thereby under the prerequisite that does not change present network and terminal interaction signaling, even without the information of adjacent cells that obtains Target cell from network terminal, terminal still can detect effective inter-frequency interference cell, thereby correctly finishes sub-district gravity treatment and task switching.
Description of drawings
Fig. 1 is a gravity treatment schematic flow sheet in sub-district in the prior art;
Fig. 2 is a direct-cut operation schematic flow sheet in sub-district in the prior art;
Fig. 3 is a baton handover schematic flow sheet in sub-district in the prior art;
Fig. 4 is the step schematic diagram according to the detection method of the inter-frequency interference cell that is used for sub-district gravity treatment or handoff procedure of the present invention;
Fig. 5 is the concrete implementing procedure figure according to the detection method of the inter-frequency interference cell that is used for cell reselection process of the specific embodiment of the invention;
Fig. 6 is the concrete implementing procedure figure according to the detection method of the inter-frequency interference cell that is used for cell switch process of the specific embodiment of the invention.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
The purpose of this invention is to provide terminal in gravity treatment or handoff procedure, obtain the method for the inter-frequency interference cell information of Target cell, this terminal can be implemented the present invention by following manner:
I. in the resident process in former sub-district, terminal obtains former adjacent cells of cells information, and periodically RSCP is carried out in these adjacent sub-districts and measure; Terminal also needs to these measurement result orderings, to obtain some inter-frequency interference cell information of former sub-district;
Before the sub-district gravity treatment taking place or switch, terminal need keep the up-to-date RSCP measurement result in all tested RSCP sub-districts on the former sub-district;
II. in gravity treatment or handoff procedure, terminal does not also obtain the information of adjacent cells of Target cell from network terminal, and terminal can be utilized former adjacent cells of cells information, obtains the inter-frequency interference cell of Target cell;
A) for the sub-district gravity treatment, need the inter-frequency interference cell information of Target cell to offset the co-channel interference of decode system message, all identical with Target cell dominant frequency point on former sub-district sub-districts can be sequenced preface according to up-to-date RSCP measurement result, several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0;
B) for switching, need the inter-frequency interference cell information of Target cell to offset the co-channel interference of decoding FPACH channel co-channel interference and downlink data receiving, all identical with Target cell dominant frequency point on former sub-district sub-districts can be sequenced preface according to up-to-date RSCP measurement result, several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0 (not containing Target cell); All sub-districts on the former sub-district can be sequenced preface according to up-to-date RSCP measurement result, several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell (not containing Target cell) on the non-TS0 time slot of Target cell;
C) for the sub-district gravity treatment, terminal reads the system information of Target cell by above-mentioned definite inter-frequency interference cell information, thereby determines whether to reside in the Target cell of this gravity treatment, if can be resident, then can obtain the definite adjacent cell relation information of this Target cell by system message;
D) for switching, terminal reads the FPACH channel and the downlink traffic channel of Target cell, determine whether to go up this Target cell synchronously, if can be successfully synchronous, then can continue to utilize the inter-frequency interference cell information of the Target cell of acquisition, thereby the reading system measuring control information obtains the definite adjacent cell relation information of this Target cell;
A kind of detection method that is used for the inter-frequency interference cell of sub-district gravity treatment or handoff procedure according to a particular embodiment of the invention, this method may further comprise the steps, as shown in Figure 4, its step S1: terminal is retained in received signal code power measurement result up-to-date on the former sub-district; Step S2: according to this up-to-date received signal code power measurement result, terminal is determined the information of adjacent cells of Target cell; Step S3: according to the information of adjacent cells of determined Target cell, terminal obtains the inter-frequency interference cell of Target cell.
Concrete steps S1 is, at first terminal still resides in former sub-district, obtain former system information of subdistricts or measuring control information from network terminal, obtain to need to measure the information of adjacent cells of received signal code power (RSCP), terminal periodic ground detects the measurement result of the received signal code power of adjacent sub-district, and stores up-to-date measurement result; Concrete steps S2 is, terminal determine to carry out the sub-district gravity treatment or according to network side order determine that needs carry out the sub-district and switch, with the Target cell of gravity treatment or switching as Serving cell; Terminal can sequence preface according to up-to-date RSCP measurement result with all identical with Target cell dominant frequency point on former sub-district sub-districts, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0 (not containing Target cell); All sub-districts on the former sub-district can be sequenced preface according to up-to-date RSCP measurement result, several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell (not containing Target cell) on the non-TS0 time slot of Target cell; Concrete steps S3 is, for the sub-district gravity treatment, terminal correctly receives the system information that network sends based on this inter-frequency interference cell by the co-channel interference cancellation algorithms this moment, and terminal is obtained the inter-frequency interference cell of gravity treatment Target cell according to this system information; Switch for the sub-district, terminal is at this moment based on this inter-frequency interference cell, be correctly decoded FPACH channel and downlink traffic channel by the co-channel interference cancellation algorithms, if Target cell on the terminal synchronizes, then can continue to utilize the inter-frequency interference cell information of the Target cell of acquisition, thereby the reading system measuring control information obtains the definite adjacent cell relation information of this Target cell;
In cordless communication network, terminal can be provided with conditioned disjunction environment decision whether carrying out sub-district gravity treatment on every side according to system, as shown in Figure 1, terminal is carried out in the cell reselection process in the prior art, obtain in network terminal before the adjacent cell relation information of Target cell, need the descending management information bank (MIB) of decoding Target cell, scheduler module (SB), measuring control information system messages such as (SIB12) under measuring control information under the broadcast idle mode (SIB11) or the broadcasting connection mode; Could determine whether can reside in the Target cell of this gravity treatment, and obtain the adjacent cell relation information of this Target cell; And if be correctly decoded these system messages, the necessary inter-frequency interference cell information that obtains Target cell earlier.
All identical with Target cell dominant frequency point on former sub-district sub-districts can be sequenced preface according to up-to-date RSCP measurement result for this reason, choose the inter-frequency interference cell (do not contain Target cell) of several sub-districts of RSCP measurement result maximum as Target cell; Offset the co-channel interference of decode system message, thereby guarantee that terminal correctly understands system information.
In cordless communication network, whether network terminal can be provided with conditioned disjunction environment decision terminal on every side according to system and will switch, when if terminal receives the order that will switch from system end, as shown in Figures 2 and 3, Fig. 2 for from network terminal receive be the order of direct-cut operation the time, direct-cut operation schematic flow sheet in sub-district in the prior art, Fig. 3 for from network terminal receive be the order of baton handover the time, baton handover schematic flow sheet in sub-district in the prior art.
For direct-cut operation, carry out in the direct-cut operation in the network requirement terminal, terminal obtains from network terminal to need 1 before the adjacent cell relation information of Target cell) the descending FPACH channel of decoding Target cell; 2) downlink data of receiving target sub-district, judge and Target cell whether synchronous on; 3) be correctly decoded the measurement control messages that network side sends, obtain the real adjacent cell relation information of Target cell; If be correctly decoded FPACH channel and the downlink data of correct receiving target sub-district and the measurement control messages that is correctly decoded the network side transmission of Target cell, must obtain the inter-frequency interference cell information of Target cell earlier.Step is as follows: this terminal sends uplink synchronous (SYNCUL) sign indicating number to Target cell, receive this uplink synchronous code of terminal when system after, decoding physical access channel (FPACH) is if physical access channel (FPACH) receives successfully, terminal begins the downlink data of decoding, if terminal judges goes up network synchronously, terminal then needs to receive the measurement control messages from network terminal, to obtain the definite information of adjacent cells of Target cell.Yet before this terminal will receive the information of adjacent cells of Target cell from network terminal, need the inter-frequency interference cell information of Target cell to offset the co-channel interference of decoding FPACH channel and the co-channel interference of downlink data receiving.
For this reason, terminal can sequence preface according to up-to-date RSCP measurement result with all identical with Target cell dominant frequency point on former sub-district sub-districts, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0 (not containing Target cell); All sub-districts on the former sub-district can be sequenced preface according to up-to-date RSCP measurement result, several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell (not containing Target cell) on the non-TS0 time slot of Target cell; Offset the co-channel interference of descending task in the handoff procedure, thereby guarantee that terminal correctly understands FPACH channel and down channel, if can handover success, then can continue to utilize the inter-frequency interference cell information of the Target cell of acquisition correctly to receive the measuring control information of network side, thereby obtain definite adjacent cell relation information.
For baton handover, carry out in the baton handover process in the network requirement terminal, obtain the adjacent cell relation information of Target cell from network terminal before, need the downlink data of decoding Target cell, judge and Target cell whether synchronous on.And if be correctly decoded the downlink data of Target cell, must at first obtain the inter-frequency interference cell information of Target cell.Step is as follows: this terminal sends upstream data to Target cell, receives the downlink data of former sub-district simultaneously, and after the process time period that sets in advance, terminal changes Target cell over to and sends upstream data and downlink data receiving; When terminal judges goes up Target cell synchronously, after the handover success, terminal will receive measuring control information from network terminal, with obtain Target cell definite adjacent cell relation information.Yet before this terminal will receive the information of adjacent cells of Target cell from network terminal, need the inter-frequency interference cell information of Target cell to offset the co-channel interference of separating downlink data receiving.
For this reason, terminal can sequence preface according to up-to-date RSCP measurement result with all identical with Target cell dominant frequency point on former sub-district sub-districts, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0 (not containing Target cell); All sub-districts on the former sub-district can be sequenced preface according to up-to-date RSCP measurement result, several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell (not containing Target cell) on the non-TS0 time slot of Target cell; Offset the co-channel interference of descending task in the handoff procedure, thereby guarantee that terminal correctly understands the down channel of Target cell, if can handover success, then can continue to utilize the inter-frequency interference cell information of the Target cell of acquisition correctly to receive the measuring control information of network side, thereby obtain definite adjacent cell relation information.
To describe the concrete scheme implementation flow process that inter-frequency interference cell in the cell reselection process is selected below in detail, its concrete steps as shown in Figure 5:
Step S11: terminal resides in former sub-district, need to obtain the information of adjacent cells of measure R SCP from network terminal;
Step S12: according to network configuration, the RSCP of the adjacent sub-district of terminal periodic scheduling measures;
Step S13: whether terminal judges needs to carry out the sub-district gravity treatment, if change S14; Otherwise, finish.
Step S14: terminal is retained in RSCP measurement result up-to-date on the former sub-district, and these RSCP measurement results are sorted from big to small;
Step S15: with Target cell as Serving cell; Sorted RSCP measures the tabulation from former sub-district, chooses the some adjacent sub-districts identical with Target cell dominant frequency point, and therefrom obtains the inter-frequency interference cell (do not contain Target cell) of the sub-district of some RSCP maximums as the TS0 of Target cell.
Step S16: utilize the co-channel interference cancellation algorithms, read the system information of Target cell.By system information, terminal is obtained adjacent cell relation information real on the Target cell.
By all identical with Target cell dominant frequency point on former sub-district sub-districts are sequenced preface according to up-to-date RSCP measurement result, choose the inter-frequency interference cell of several sub-districts of RSCP measurement result maximum as Target cell; Offset the co-channel interference of decode system message, thereby guarantee that terminal correctly understands system information.
To describe the concrete scheme implementation flow chart that inter-frequency interference cell is selected when switching for the network requirement terminal below in detail, detailed step as shown in Figure 6:
Step S21: terminal resides in former sub-district, and terminal need to obtain the information of adjacent cells of measure R SCP from network side;
Step S22: terminal is according to network configuration, and the adjacent sub-district RSCP of periodic scheduling measures;
Step S23 judges whether terminal receives networking command requirement switching.If change 4; Otherwise, finish.
Step S24: keep up-to-date sub-district RSCP measurement result once on the former sub-district, and according to the RSCP measurement result sub-district of sorting from big to small;
Step S25: all identical with Target cell dominant frequency point on former sub-district sub-districts are sequenced preface according to up-to-date RSCP measurement result, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0 (not containing Target cell); All sub-districts on the former sub-district are sequenced preface according to up-to-date RSCP measurement result, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell (not containing Target cell) on the non-TS0 time slot of Target cell;
Step S26: judge if direct-cut operation changes S27; If S29 is changeed in baton handover.
Step S27: on Target cell, launch the SYNCUL sign indicating number, and pass through the inter-frequency interference cell information of the Target cell of acquisition, decoding FPACH;
Step S28: judge whether that FPACH receives successfully, if change S29; Otherwise, finish;
Step S29: with the inter-frequency interference cell information of the Target cell that obtains as the demodulation downlink data, up to the information of adjacent cells of the Target cell of receiving the new configuration of network side;
To describe the method for sub-district of the present invention gravity treatment and sub-district switching by a concrete example in detail below.As shown in the table:
| Frequency point information | The sub-district | |||
| Freq1 | C | D | F | |
| Freq2 | B | E | G | H |
| Freq3 | I | J | ||
| Freq4 | K | L | M | |
Terminal resides in the A sub-district, and the frequency of A is Freq1; Terminal can obtain sub-district A from the network information adjacent cell list is; (Freq1, C) (Freq1, D) (Freq1, F) (Freq2, B) (Freq2, E) (Freq2, G) (Freq2, H) (Freq3, I) (Freq3, J) (Freq4, K) (Freq4, and L) (Freq4, M)
Terminal during resident A sub-district, period measurement A, B, C, D, E, F, G, H, I, J, K, L, the received signal code power of M sub-district (RSCP) value;
Terminal judges should be initiated the sub-district gravity treatment to the B sub-district; Or the network requirement terminal switches to the B sub-district; At this moment,
For Target cell B, the last up-to-date RSCP measurement result of its dominant frequency point Freq2 ranking results from big to small is: B＞G＞H＞E;
For all sub-districts, up-to-date RSCP measurement result ranking results from big to small is:
B＞A＞G＞C＞D＞F＞H＞E＞I＞J＞K＞L＞M；
If terminal is initiated gravity treatment to the B sub-district,
Do the system message decoding task so on the B sub-district, terminal can be according to G, H, and the priority orders of E is selected some sub-districts as the inter-frequency interference cell on the TS0;
If the network requirement terminal switches on the B sub-district, terminal is done the FPACH decoding on B or downlink data is separated timing, and terminal can be according to G, H, and the priority orders of E is selected some sub-districts as the inter-frequency interference cell on the TS0; Can be according to A, G, C, D, F, H, E, I, J, K, L, the priority orders of M is selected several sub-districts as the inter-frequency interference cell on the non-TS0 time slot;
The present invention can be under the prerequisite that does not change present network and terminal interaction signaling, and even without the information of adjacent cells that obtains Target cell from network side, terminal still can detect effective inter-frequency interference cell, thereby correctly finishes sub-district gravity treatment and task switching.
Though the present invention is described in detail by some embodiments of the present invention; yet the foregoing description is not a limitation of the invention; be to be understood that; those skilled in the art does change and the improvement of some to the present invention in conjunction with the foregoing description; also should fall in the scope disclosed in this invention, protection scope of the present invention should be as the criterion with the protection range that claim was limited.
Claims (6)
1. one kind is used for the method that sub-district gravity treatment or handoff procedure detect inter-frequency interference cell, and this method may further comprise the steps:
Step S1: terminal is retained in received signal code power measurement result up-to-date on the former sub-district;
Step S2: according to this up-to-date received signal code power measurement result, terminal is determined the information of adjacent cells of Target cell;
Step S3: according to the information of adjacent cells of determined Target cell, terminal obtains the inter-frequency interference cell of Target cell.
2. the method for detection inter-frequency interference cell according to claim 1, when it is characterized in that described step S2 is the sub-district gravity treatment, all identical with Target cell dominant frequency point on former sub-district sub-districts are sequenced preface according to up-to-date RSCP measurement result, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0.
3. the method for detection inter-frequency interference cell according to claim 1, when it is characterized in that described step S2 is the sub-district switching, all identical with Target cell dominant frequency point on former sub-district sub-districts are sequenced preface according to up-to-date RSCP measurement result, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the Target cell TS0; All sub-districts on the former sub-district are sequenced preface according to up-to-date RSCP measurement result, and several sub-districts of choosing RSCP measurement result maximum are as the inter-frequency interference cell on the non-TS0 time slot of Target cell.
4. the method for detection inter-frequency interference cell according to claim 2, it is characterized in that described step S3 is the system information that terminal is utilized the inter-frequency interference cell information decoding network of described Target cell, and, obtain the real adjacent cell relation information of Target cell according to the system information on this sub-district.
5. the method for detection inter-frequency interference cell according to claim 3, it is characterized in that described step S3 is in the direct-cut operation, terminal is launched after the uplink synchronous code on Target cell, utilize the inter-frequency interference cell information decoding physical access channel and the down channel of described Target cell, whether terminal judges goes up Target cell synchronously, if synchronously, the measuring control information that continues to utilize the inter-frequency interference cell information decoding network of described Target cell to send obtains the real adjacent cell relation information of Target cell.
6. the method for detection inter-frequency interference cell according to claim 3, it is characterized in that in the described step S3 baton handover process, before terminal is received the information of adjacent cells of the new Target cell that disposes of network terminal, utilize the down channel of the inter-frequency interference cell information decoding fast target sub-district of described Target cell, whether terminal judges goes up Target cell synchronously, if synchronously, the measuring control information that continues to utilize the inter-frequency interference cell information decoding network of described Target cell to send obtains the real adjacent cell relation information of Target cell.
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| CN102195670A (en) * | 2010-03-12 | 2011-09-21 | 中国移动通信集团公司 | Same-frequency and multi-cell detection method and device |
| CN101605351B (en) * | 2009-06-25 | 2011-12-07 | 北京天碁科技有限公司 | Cell reselection processing method for mobile terminal and mobile terminal |
| WO2012024924A1 (en) * | 2010-08-27 | 2012-03-01 | 中兴通讯股份有限公司 | Cell reselection method in time division-synchronous code division multiple access (td-scdma) network and terminal equipment |
| CN102448134A (en) * | 2010-10-12 | 2012-05-09 | 中国移动通信集团广西有限公司 | Method and system for rapidly switching to TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) network |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FI982473A (en) * | 1998-11-16 | 2000-05-17 | Nokia Networks Oy | Procedure for channel assignment and cellular radio system |
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| CN101605351B (en) * | 2009-06-25 | 2011-12-07 | 北京天碁科技有限公司 | Cell reselection processing method for mobile terminal and mobile terminal |
| CN102056127B (en) * | 2009-11-03 | 2013-06-26 | 杰脉通信技术(上海)有限公司 | Method for selecting same-frequency interference cell list on TDD UE side |
| CN102056127A (en) * | 2009-11-03 | 2011-05-11 | 杰脉通信技术(上海)有限公司 | Method for selecting same-frequency interference cell list on TDD UE side |
| CN102195670A (en) * | 2010-03-12 | 2011-09-21 | 中国移动通信集团公司 | Same-frequency and multi-cell detection method and device |
| CN102195670B (en) * | 2010-03-12 | 2014-03-05 | 中国移动通信集团公司 | Same-frequency and multi-cell detection method and device |
| WO2012024924A1 (en) * | 2010-08-27 | 2012-03-01 | 中兴通讯股份有限公司 | Cell reselection method in time division-synchronous code division multiple access (td-scdma) network and terminal equipment |
| CN102448134A (en) * | 2010-10-12 | 2012-05-09 | 中国移动通信集团广西有限公司 | Method and system for rapidly switching to TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) network |
| CN102448134B (en) * | 2010-10-12 | 2015-09-16 | 中国移动通信集团广西有限公司 | A kind of method and system being switched to TD-SCDMA network fast |
| CN102547729A (en) * | 2010-12-08 | 2012-07-04 | 鼎桥通信技术有限公司 | Method and base station for restraining co-channel interference under high-speed railway networks and high-speed railway network system |
| CN102547729B (en) * | 2010-12-08 | 2015-03-25 | 鼎桥通信技术有限公司 | Method and base station for restraining co-channel interference under high-speed railway networks and high-speed railway network system |
| CN103686771A (en) * | 2012-09-20 | 2014-03-26 | 中兴通讯股份有限公司 | Same frequency interference cell configuration device, method and terminal |
| WO2014044175A1 (en) * | 2012-09-20 | 2014-03-27 | 中兴通讯股份有限公司 | Device, method and terminal for configuring same-frequency interference cell |
| CN103686771B (en) * | 2012-09-20 | 2018-02-02 | 深圳市中兴微电子技术有限公司 | A kind of device, method and terminal for configuring inter-frequency interference cell |
| CN103067961A (en) * | 2012-12-18 | 2013-04-24 | 上海大唐移动通信设备有限公司 | Method for detecting communities with same frequency and same code and system for the same |
| CN103067961B (en) * | 2012-12-18 | 2015-10-28 | 上海大唐移动通信设备有限公司 | A kind of method and system detected with Pin Tongma community |
| CN104348565A (en) * | 2013-07-29 | 2015-02-11 | 意法-爱立信有限公司 | Interference community detection method and user equipment |
| CN104348565B (en) * | 2013-07-29 | 2016-09-28 | 意法-爱立信有限公司 | Interfered cell detection method and subscriber equipment |
| WO2016106716A1 (en) * | 2014-12-31 | 2016-07-07 | 华为技术有限公司 | Method, apparatus and terminal for determining reselection target cell |
| CN110430594A (en) * | 2019-08-12 | 2019-11-08 | 展讯通信（上海）有限公司 | The measurement method and equipment of unlicensed frequencies |
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