CN101516122B - Neighboring area information sending method and devices therefor - Google Patents
Neighboring area information sending method and devices therefor Download PDFInfo
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- CN101516122B CN101516122B CN200910118637XA CN200910118637A CN101516122B CN 101516122 B CN101516122 B CN 101516122B CN 200910118637X A CN200910118637X A CN 200910118637XA CN 200910118637 A CN200910118637 A CN 200910118637A CN 101516122 B CN101516122 B CN 101516122B
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Abstract
The embodiment of the invention provides a neighboring area information sending method and devices therefor, wherein, the neighboring area information sending method includes: determining the sending time of the neighboring area information to be adjusted; adjusting the sending time of the neighboring area information; According to the adjusting result; and sending the neighboring area information to a terminal. Due to adopting a flexible the neighboring area information sending method, the network performance can be improved, meanwhile, the system resources can be saved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for sending neighbor cell information and a related device.
Background
After the terminal accesses the network, if the signal quality of the current serving base station of the terminal is degraded, the terminal may wish to switch to a neighboring cell with better service quality in order to obtain better service quality, where the neighboring cell may be a neighboring base station or a neighboring cell.
In the prior art, a serving base station issues a neighbor broadcast message at a certain time interval, where the neighbor broadcast message carries neighbor information, and the neighbor information includes: the configuration information of the wireless parameters of the adjacent regions and the change times of the configuration information of the wireless parameters of the adjacent regions.
The prior art has the following defects:
if the time interval is long, a terminal which accesses the network at some time inevitably exists, the terminal needs to wait for a long time to obtain the neighbor cell information, and the terminal cannot obtain the neighbor cell information for a long time after accessing the network, when the service quality of the service base station is reduced, the terminal is forced to exit the network to interrupt the service of the terminal, or the terminal cannot obtain the neighbor cell information, so that the terminal does not know which neighbor cell is suitable for being switched to and blindly switches, and the switching failure is caused; or, since the terminal that has accessed the network cannot obtain the neighboring cell information in time, that is, cannot obtain the latest neighboring cell wireless parameter configuration information and the change times of the neighboring cell wireless parameter configuration information, the neighboring cell wireless parameter configuration information that is stored by the terminal cannot be updated in time, which may cause the terminal to switch according to the old neighboring cell wireless parameter configuration information, and may cause a failure in switching.
If the time interval is short, the service base station frequently issues the adjacent cell broadcast message, which causes resource waste.
Disclosure of Invention
The embodiment of the invention provides a method for sending adjacent cell information, related equipment and a system.
In view of this, the embodiment of the present invention provides:
a method for sending neighbor cell information comprises the following steps:
determining the sending time of the neighbor cell information needing to be adjusted;
adjusting the sending time of the neighbor cell information;
and sending the neighbor cell information to a terminal according to the adjustment result.
A method of handover, comprising:
sending a first switching request message to network side equipment, so that the network side equipment determines the sending time of the adjacent cell information needing to be adjusted according to the first switching request message;
receiving neighbor cell information sent by the network side equipment at the adjusted time;
and determining the neighbor cell to be switched according to the neighbor cell information, and sending a second switching request message to the network side equipment, wherein the second switching request message carries the identifier of the neighbor cell to be switched.
A network-side device, comprising:
the determining unit is used for determining the sending time of the adjacent cell information needing to be adjusted;
the adjusting unit is used for adjusting the sending time of the adjacent cell information after the determining unit determines that the sending time of the adjacent cell information needs to be adjusted;
and the sending unit is used for sending the adjacent cell information to the terminal according to the adjusting result of the adjusting unit.
A terminal, comprising: a transmitting unit, a receiving unit and a determining unit,
the sending unit is configured to send a first handover request message to a network side device, so that the network side device determines, according to the first handover request message, sending time of neighboring cell information that needs to be adjusted, and after the receiving unit receives the neighboring cell information that is sent by the network side device according to the adjusted time, and the determining unit determines a neighboring cell to be switched, send a second handover request message to the network side device, where the second handover request message carries an identifier of the neighboring cell to be switched.
The embodiment of the invention improves the network performance and saves the system resources at the same time by adjusting the sending time of the adjacent cell information so as to adopt a flexible sending mode of the adjacent cell information according to the adjustment result.
Drawings
Fig. 1 is a flowchart of a method for sending neighbor cell information according to a first embodiment of the present invention;
fig. 2 is a flowchart of a method for sending neighbor cell information according to a second embodiment of the present invention;
fig. 3 is a flowchart of a first neighboring cell handover method according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for sending neighbor cell information according to a third embodiment of the present invention;
fig. 5 is a flowchart of a second neighboring cell handover method according to an embodiment of the present invention;
fig. 6 is a diagram of a network-side device structure according to a fourth embodiment of the present invention;
fig. 7 is a diagram of a terminal structure according to a fifth embodiment of the present invention.
Detailed Description
The first embodiment is as follows:
referring to fig. 1, an embodiment of the present invention provides a method for sending neighbor cell information, where the method includes:
101. and determining the sending time of the neighbor cell information needing to be adjusted.
102. And adjusting the sending time of the neighbor cell information.
103. And sending the neighbor cell information to a terminal according to the adjustment result.
Wherein, the execution subject of the method may be a base station currently serving the terminal.
According to the embodiment of the invention, the sending time of the adjacent cell information is adjusted, so that a flexible sending mode of the adjacent cell information is adopted according to the adjustment result, the network performance is improved, and the system resources are saved.
The following second embodiment and the third embodiment of the present invention describe a method for a base station serving a terminal to send neighbor information, taking a Wimax (World Interoperability for microwave Access, global microwave interconnect system) network as an example, and what needs to be described is that: the technical solution provided by the embodiment of the present invention is not limited to the Wimax network, but can also be applied to a UMTS (Universal Mobile telecommunications system) network.
Example two:
referring to fig. 2, a second embodiment of the present invention provides a method for sending neighbor cell information, including:
201. the base station sends a neighboring broadcast message at a certain time interval, wherein the neighboring broadcast message carries neighboring information, and the neighboring information comprises: the configuration information of the wireless parameters of the adjacent regions and the change times of the configuration information of the wireless parameters of the adjacent regions.
The neighbor cell wireless parameter configuration information comprises: current parameter configuration information of all adjacent cells of the base station;
and when the neighbor broadcast message is sent, the recorded change times of the neighbor wireless parameter configuration information and the current neighbor wireless parameter configuration information are carried in the neighbor broadcast message and sent down.
202. The terminal receives the adjacent area broadcast message of the base station, when the adjacent area needs to be switched, the terminal sends a switching request message to the base station, the switching request message carries the candidate adjacent area list and the change times of the adjacent area wireless parameter configuration information, and the switching request message in the step is the first switching request message.
The change times of the wireless parameter configuration information of the adjacent region are obtained from the adjacent region broadcast message sent by the base station.
203. The base station judges whether the change times of the wireless parameter configuration information of the adjacent cell carried in the switching request message is consistent with the change times of the wireless parameter configuration information of the adjacent cell recorded locally, if so, the information of the adjacent cell stored in the terminal is normal, the adjacent cell switching is subsequently carried out according to a normal flow, if not, the information of the adjacent cell stored in the terminal is abnormal, and step 204 is executed.
If the neighboring cell wireless parameter configuration information of the base station is changed after the last neighboring cell broadcast message is sent, the number of times of changing the neighboring cell wireless parameter configuration information recorded by the base station is different from the number of times of changing the neighboring cell wireless parameter configuration information carried in the handover request message, and is 1 greater than the number of times of changing the neighboring cell wireless parameter configuration information carried in the handover request message.
204. And the base station adjusts the sending time of the adjacent cell information and sends the adjacent cell information according to the adjusted time.
Specifically, the sending time of the neighbor cell information may be adjusted and the neighbor cell information may be sent in the following two ways:
(1) and adjusting the sending time of the next adjacent cell information, and sending the next adjacent cell information in time, wherein the specific way of sending the adjacent cell information can be to send an adjacent cell broadcast message carrying the current adjacent cell information to the terminal in a broadcast way, or to send a message carrying the current adjacent cell information to the terminal separately.
In the method (1), only the sending time of the next adjacent region information is adjusted, and the sending method of the subsequent adjacent region information is sent according to the original period.
(2) And shortening the sending period of the adjacent region broadcast message, and sending the adjacent region broadcast message carrying the adjacent region information according to the adjusted period.
The second embodiment of the present invention determines to adjust the sending time of the neighboring cell information according to the neighboring cell information abnormal event stored in the terminal, and may also determine to adjust the sending time of the neighboring cell information according to at least one of the load condition of the current base station, the number of users newly accessing the network after the last neighboring cell broadcast message is sent, and the neighboring cell information abnormal event stored in the terminal, without affecting the implementation of the present invention.
In the second embodiment of the invention, the base station determines the sending time of the neighbor cell information needing to be adjusted according to the neighbor cell information abnormal event stored in the terminal, and adopts a flexible sending mode of the neighbor cell information according to the adjustment result, thereby improving the network performance and saving the system resources.
The object of the present invention has been achieved as above, and how the terminal performs handover is described as follows with reference to fig. 3:
301. after step 204, the terminal receives the neighboring cell information sent by the base station, where the neighboring cell information includes: and comparing the change times of the wireless parameter configuration information of the adjacent regions in the adjacent region information with the change times of the wireless parameter configuration information of the adjacent regions stored by the user to obtain different change times, and updating the adjacent region information stored by the user.
302. And if the neighbor cell is determined to have better signal quality than the base station according to the current neighbor cell wireless parameter configuration information, scanning the neighbor cell.
303. If the scanning result of the adjacent cell meets the switching condition, the terminal initiates a switching request message to the base station, wherein the switching request message carries: the handover request message may also carry the number of times of changing the neighboring radio parameter configuration information, where the candidate neighboring list includes: and the scanning result meets the identifier of the adjacent cell of the switching condition, and the switching request message in the step is a second switching request message.
304. And the terminal performs information interaction with the candidate neighbor cell through the base station serving for the terminal at present and switches to the candidate neighbor cell.
After the terminal sends the handover request message in step 202, the terminal does not receive a response from the base station, receives the latest neighbor cell information sent by the base station in step 301, and resends the handover request message according to the latest neighbor cell information, because the neighbor cell wireless parameter configuration information carried in the latest neighbor cell information is latest, the judgment result of whether the neighbor cell has better signal quality than the base station currently serving the terminal is judged based on the latest neighbor cell information, and the neighbor cells in the candidate neighbor cell list carried in the subsequent handover request message are all neighbor cells having better signal quality than the base station currently serving the terminal, so that the subsequent handover can be successful to the neighbor cells.
Example three:
referring to fig. 4, a third embodiment of the present invention provides a method for sending neighbor cell information, including:
401. the base station sends a neighboring broadcast message at a certain time interval, wherein the neighboring broadcast message carries neighboring information, and the neighboring information comprises: the configuration information of the wireless parameters of the adjacent regions and the change times of the configuration information of the wireless parameters of the adjacent regions.
402. The terminal just accesses the network, does not receive the neighbor broadcast message sent by the base station, and sends a switching request message to the base station when the neighbor needs to be switched, wherein the switching request message does not carry a candidate neighbor list, and the switching request message in the step is a first switching request message.
In the step, the base station is informed in a way that the switching request message does not carry the candidate neighbor cell list, and the terminal does not obtain neighbor cell information yet and needs the base station to send the neighbor cell information.
403. The base station judges whether the received switching request message carries a candidate neighbor cell list, if so, the base station switches the neighbor cells according to a normal flow, and if not, the base station executes the step 404.
404. The base station adjusts the sending time of the neighboring cell information, and sends the neighboring cell information according to the adjusted time, and the specific implementation manner is similar to that in step 204, which is not described herein again.
In the third embodiment of the present invention, when the received handover request message does not carry the candidate neighbor list, the base station determines the sending time of the neighbor information that needs to be adjusted, and according to the adjustment result, adopts a flexible sending method of the neighbor information, thereby improving the network performance and saving the system resources.
The object of the present invention has been achieved as above, and how the terminal performs handover is described as follows with reference to fig. 5:
501. after step 404, the terminal receives neighboring cell information sent by the base station, where the neighboring cell information includes: and the terminal stores the neighbor cell information according to the current neighbor cell wireless parameter configuration information and the change times of the neighbor cell wireless parameter configuration information.
502-504 are similar to 302-304 and will not be described in detail here.
After the terminal sends the handover request message in step 402, the terminal does not receive a response from the base station, receives the neighbor cell information sent by the base station in step 501, and resends the handover request message according to the neighbor cell information, because the neighbor cell wireless parameter configuration information carried in the latest neighbor cell information is latest, the result of determining whether the neighbor cell has better signal quality than that of the base station currently serving the terminal is accurate based on the result, and the neighbor cells in the candidate neighbor cell list carried in the subsequent handover request message are all neighbor cells having better signal quality than that of the base station currently serving the terminal, so that the subsequent handover can be successful to the neighbor cell.
Example four:
referring to fig. 6, a fourth embodiment of the present invention provides a network side device, where the network side device may be a base station, and the network side device includes:
a determining unit 601, configured to determine sending time of the neighboring cell information to be adjusted;
an adjusting unit 602, configured to adjust the sending time of the neighboring cell information after the determining unit 601 determines that the sending time of the neighboring cell information needs to be adjusted;
a sending unit 603, configured to send the neighboring cell information to the terminal according to the adjustment result of the adjusting unit 602.
Wherein, the determining unit 601 includes: a first receiving unit, configured to receive a handover request message sent by the terminal; a first judging unit, configured to judge whether the change times of the neighboring cell radio parameter configuration information carried in the handover request message is consistent with the change times of the neighboring cell radio parameter configuration information recorded locally; and the first determining unit is used for determining that the sending time of the adjacent area information needs to be adjusted when the judgment result of the first judging unit is negative.
Or, the determining unit 601 is configured to determine, according to the load condition of the network side device and/or the number of terminals accessed after the neighboring cell information is sent last time, the sending time of the neighboring cell information needs to be adjusted.
Alternatively, the determination unit 601 includes: a second receiving unit, configured to receive a handover request message sent by the terminal; a second judging unit, configured to judge whether the handover request message carries a candidate neighbor list; and the second determining unit is used for determining that the sending time of the adjacent area information needs to be adjusted when the judgment result of the second judging unit is negative.
Specifically, the adjusting unit 602 is configured to adjust the sending time of the next neighboring cell information; or adjusting the period of sending the message carrying the neighbor cell information.
The base station provided by the fourth embodiment of the invention adjusts the sending time of the neighboring cell information after determining the sending time of the neighboring cell information needing to be adjusted, adopts a flexible sending mode of the neighboring cell information according to the adjustment result, provides network performance, and saves system resources at the same time.
Example five:
referring to fig. 7, a fifth embodiment of the present invention provides a terminal, where the terminal includes: a transmitting unit 701, a receiving unit 702 and a determining unit 703,
a sending unit 701, configured to send a first handover request message to a network side device, so that the network side device determines, according to the first handover request message, sending time of neighboring cell information that needs to be adjusted; and after the receiving unit 702 receives the neighboring cell information sent by the network side device, and the determining unit 703 determines the neighboring cell to be switched to according to the neighboring cell information, a second switching request message is sent to the network side device, where the second switching request message carries an identifier of the neighboring cell. The network side device may be a base station.
After the terminal provided by the fifth embodiment of the present invention sends the first handover request message, the terminal receives the neighbor cell information sent by the network side device according to the adjusted time, determines the neighbor cell to be handed over to according to the neighbor cell information, and sends the handover request message to the network side device again, where the handover request message carries the identifier of the neighbor cell, so as to improve the success rate of subsequent handover.
It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by hardware that is instructed to implement by a program, and the program may be stored in a computer-readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like.
The method for sending neighbor cell information, the related device and the system provided by the embodiment of the present invention are described in detail above, and a specific example is applied in the text to explain the principle and the embodiment of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A method for sending neighbor cell information is characterized by comprising the following steps:
determining the sending time of the neighbor cell information needing to be adjusted;
adjusting the sending time of the neighbor cell information;
sending the neighbor cell information to a terminal according to the adjustment result;
wherein the determining that the sending time of the neighbor cell information needs to be adjusted includes:
a base station receives a switching request message sent by the terminal, judges whether the change times of the wireless parameter configuration information of the adjacent cell carried in the switching request message is consistent with that of a local record, and if not, determines that the sending time of the adjacent cell information needs to be adjusted;
or, the base station receives a handover request message sent by the terminal, and determines the sending time of the neighbor cell information to be adjusted when the handover request message does not carry the candidate neighbor cell list.
2. The method of claim 1, wherein:
the adjusting the sending time of the neighboring cell information comprises:
adjusting the sending time of the next adjacent cell information;
or,
and adjusting the period for sending the message carrying the neighbor cell information.
3. A method for sending neighbor cell information is characterized by comprising the following steps:
the base station determines the sending time of the neighbor cell information needing to be adjusted according to the load condition of the base station and/or the number of the terminals accessed after the neighbor cell information is sent last time;
adjusting the sending time of the neighbor cell information;
and sending the neighbor cell information to a terminal according to the adjustment result.
4. The method of claim 3, wherein:
the adjusting the sending time of the neighboring cell information comprises:
adjusting the sending time of the next adjacent cell information;
or,
and adjusting the period for sending the message carrying the neighbor cell information.
5. A method of handover, comprising:
sending a first switching request message to network side equipment, so that the network side equipment determines the sending time of the adjacent cell information needing to be adjusted according to the first switching request message;
receiving neighbor cell information sent by the network side equipment at the adjusted time;
and determining the neighbor cell to be switched according to the neighbor cell information, and sending a second switching request message to the network side equipment, wherein the second switching request message carries the identifier of the neighbor cell to be switched.
6. A network-side device, comprising:
the determining unit is used for determining the sending time of the adjacent cell information needing to be adjusted;
the adjusting unit is used for adjusting the sending time of the adjacent cell information after the determining unit determines that the sending time of the adjacent cell information needs to be adjusted;
the sending unit is used for sending the adjacent cell information to a terminal according to the adjusting result of the adjusting unit;
wherein the determination unit includes:
a first receiving unit, configured to receive a handover request message sent by the terminal;
a first judging unit, configured to judge whether the change times of the neighboring cell radio parameter configuration information carried in the handover request message is consistent with that of the local record;
a first determining unit, configured to determine, when the determination result of the first determining unit is negative, that the sending time of the neighboring cell information needs to be adjusted;
alternatively, the determining unit includes:
a second receiving unit, configured to receive a handover request message sent by the terminal;
a second judging unit, configured to judge whether the handover request message carries a candidate neighbor list;
and the second determining unit is used for determining that the sending time of the adjacent area information needs to be adjusted when the judgment result of the second judging unit is negative.
7. The network-side device of claim 6, wherein:
the adjusting unit is used for adjusting the sending time of the next adjacent cell information; or adjusting the period of sending the message carrying the neighbor cell information.
8. A network-side device, comprising:
a determining unit, configured to determine, according to a load condition of the network side device and/or a number of terminals that have been accessed after the previous sending of the neighboring cell information, sending time of the neighboring cell information that needs to be adjusted;
the adjusting unit is used for adjusting the sending time of the adjacent cell information after the determining unit determines that the sending time of the adjacent cell information needs to be adjusted;
and the sending unit is used for sending the adjacent cell information to the terminal according to the adjusting result of the adjusting unit.
9. The network-side device of claim 8, wherein:
the adjusting unit is used for adjusting the sending time of the next adjacent cell information; or adjusting the period of sending the message carrying the neighbor cell information.
10. A terminal, comprising: a transmitting unit, a receiving unit and a determining unit,
the sending unit is configured to send a first handover request message to a network side device, so that the network side device determines, according to the first handover request message, sending time of neighboring cell information that needs to be adjusted, and after the receiving unit receives the neighboring cell information that is sent by the network side device according to the adjusted time, and the determining unit determines a neighboring cell to be switched, send a second handover request message to the network side device, where the second handover request message carries an identifier of the neighboring cell to be switched.
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| CN200910118637XA CN101516122B (en) | 2009-02-27 | 2009-02-27 | Neighboring area information sending method and devices therefor |
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| CN102647730B (en) * | 2011-02-18 | 2014-12-24 | 华为技术有限公司 | Sending and receiving method of neighboring zone information, mobile terminal and base station |
| CN113055953B (en) * | 2021-02-03 | 2023-10-24 | 海能达通信股份有限公司 | Communication terminal, handover method, system, base station and storage medium thereof |
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| CN1535545A (en) * | 2001-07-27 | 2004-10-06 | Ħ��������˾ | Delivery of broadcast information to mobile station in radio communication system |
| EP1499147A1 (en) * | 2003-07-17 | 2005-01-19 | Mitsubishi Electric Information Technology Centre Europe B.V. | Traffic dependant soft handover in a UMTS system |
| CN101064962A (en) * | 2006-04-26 | 2007-10-31 | 日本电气株式会社 | Wireless base station and method for controlling operations of the same and mobile communication system using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1535545A (en) * | 2001-07-27 | 2004-10-06 | Ħ��������˾ | Delivery of broadcast information to mobile station in radio communication system |
| EP1499147A1 (en) * | 2003-07-17 | 2005-01-19 | Mitsubishi Electric Information Technology Centre Europe B.V. | Traffic dependant soft handover in a UMTS system |
| CN101064962A (en) * | 2006-04-26 | 2007-10-31 | 日本电气株式会社 | Wireless base station and method for controlling operations of the same and mobile communication system using the same |
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