WO2012119435A1

WO2012119435A1 - Frequency point selection method and device

Info

Publication number: WO2012119435A1
Application number: PCT/CN2011/079265
Authority: WO
Inventors: 杨光; 熊立群
Original assignee: 华为技术有限公司
Priority date: 2011-09-01
Filing date: 2011-09-01
Publication date: 2012-09-13
Also published as: CN102388653B; CN102388653A

Abstract

Disclosed are a frequency point selection method and device, relating to the field of communications, in which a terminal can be switched to an indoor superposition frequency band, so that the indoor superposition frequency band can be utilized effectively, and furthermore, the data exchange rate between the terminal and the base station and the quality of signal can be improved. A frequency point selection method includes: a base station sends a routing update request message to a terminal; receives a routing update response returned by the terminal, with the routing update response containing the identifier of the indoor superposition frequency band coverage area where the terminal is located and the pilot frequency strength of the indoor superposition frequency band; if the pilot frequency strength exceeds a pilot frequency threshold, the terminal is instructed to switch to the corresponding indoor superposition frequency band according to the identifier of the indoor superposition frequency band coverage area. The embodiments of the present invention are used for switching the terminal to the indoor superposition frequency band.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to a frequency point selection method and apparatus. Background technique

In recent years, competition in the communications market has become increasingly fierce, and more and more operators are seeking mergers to improve their competitiveness. Since different operators generally have different frequency bands, this results in a multi-band overlay networking scenario. Especially in densely populated and heavily trafficked cities, multi-band overlay networking is needed to provide sufficient network capacity. Since most wireless data services occur indoors, how to deploy indoor coverage of multi-band overlay networking has become an increasingly important focus for operators.

In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: In the indoor coverage scenario, when the indoor and outdoor resident frequency bands adopt the same frequency system, the indoor and outdoor superimposed frequency bands are covered by different frequencies, because The influence of outdoor macro-network pilot interference, most of the users still reside in the outdoor frequency band, resulting in low terminal speed, poor signal, and the indoor frequency can not be effectively utilized.

Summary of the invention

Embodiments of the present invention provide a method and apparatus for frequency point selection, which can switch a terminal to an indoor superimposed frequency band, so that an indoor superimposed frequency band can be effectively utilized, and further, can improve data exchange rate and signal between the terminal and the base station. quality.

In order to achieve the above objectives, embodiments of the present invention adopt the following technical solutions:

In one aspect, an embodiment of the present invention provides a frequency point selection method, including:

Sending a route update request message to the terminal;

Receiving a route update response returned by the terminal, where the route update response includes an identifier of an indoor superposed frequency band coverage area in which the terminal is located, and a pilot strength of the indoor superimposed frequency band;

If the pilot strength exceeds the pilot threshold, the terminal is instructed to switch to the corresponding indoor superimposed frequency band according to the identifier of the indoor superimposed frequency band coverage area. In one aspect, the embodiment of the present invention provides a frequency point selection method, including: receiving, by a terminal, a route update request message sent by a base station;

Sending, by the terminal, a route update response message to the base station, where the route update response includes an identifier of an indoor superimposed frequency band coverage area and a pilot strength of an indoor superimposed frequency band;

The terminal switches to a corresponding indoor superimposed frequency band according to the indication of the base station. In one aspect, an embodiment of the present invention provides a base station, including:

a transmitter, configured to send a route update request message to the terminal;

a receiver, configured to receive a route update response returned by the terminal, where the route update response includes an identifier of an indoor superimposed frequency band coverage area and a pilot strength of the indoor superimposed frequency band;

The first processor is configured to, if the pilot strength exceeds a pilot threshold, instruct the terminal to switch to a corresponding indoor super frequency band for performing services according to the identifier of the indoor superposed frequency band coverage area.

In another aspect, an embodiment of the present invention provides a terminal, including:

a terminal receiver, configured to receive a route update request message sent by the base station, and a terminal transmitter, configured to send a route update response message to the base station, where the route update response includes an identifier of an indoor superimposed frequency band coverage area where the terminal is located And the pilot intensity of the indoor superimposed frequency band;

And a switching unit, configured to switch to a corresponding indoor superposition frequency band according to the indication of the base station.

The method and device for selecting a frequency point according to an embodiment of the present invention sends a route update request message to a terminal, so that the terminal acquires the identifier of the indoor superimposed frequency band coverage area and the pilot strength of the indoor superimposed frequency band, and sends a routing update. In response to the base station, the base station can switch the terminal to the indoor superimposed frequency band according to the location of the terminal and the pilot strength of the indoor superimposed frequency band measured by the terminal. Through this scheme, the indoor superimposed frequency band can be effectively utilized, and further, the data exchange rate and signal quality between the terminal and the base station can be improved.

DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a flowchart of a method for selecting a frequency point on a base station side according to Embodiment 1 of the present invention; FIG. 2 is a flowchart of a method for selecting a frequency point on a terminal side according to Embodiment 1 of the present invention; Frequency point selection method flow chart;

4 is a block diagram of a frequency point selecting apparatus on a base station side in Embodiment 3 of the present invention; FIG. 5 is a block diagram of another frequency point selecting apparatus based on FIG. 4;

Figure 6 is a block diagram of another frequency selection device based on Figure 5;

Figure 7 is a block diagram of a first processor in Embodiment 3 of the present invention;

Figure 8 is a block diagram of a frequency point selecting device on the terminal side in Embodiment 3 of the present invention; and Figure 9 is a block diagram showing another frequency point selecting device based on Figure 8.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. Example 1

The embodiment of the present invention provides a frequency point selection method, which is a method on the base station side. As shown in FIG. 1, the method includes:

101. Send a route update request message RUR to the terminal.

102. Receive a route update response returned by the terminal, where the route update response includes an identifier of an indoor superposed frequency band coverage area and a pilot strength of an indoor superimposed frequency band.

The route update response is generated by the terminal receiving the route update request message RUR, and the route update response includes an indoor superposition frequency of the terminal. The identification of the segment coverage area and the pilot strength of the indoor superimposed band.

103. If the pilot strength exceeds a pilot threshold, indicating that the terminal switches to a corresponding indoor superimposed frequency band according to the identifier of the indoor superimposed frequency band coverage area. The embodiment of the present invention further provides a frequency point selection method, which is a method on the terminal side. As shown in FIG. 2, the method includes:

201. The terminal receives a route update request message RUR sent by the base station.

202. The terminal sends a route update response to the base station, where the route update response includes an identifier of an indoor superposed frequency band coverage area and a pilot strength of an indoor super frequency band.

The route update response is generated after receiving the route update request message RUR sent by the base station, and the route update response includes an identifier of an indoor superimposed frequency band coverage area and an indoor superimposed frequency band of the terminal. Pilot strength.

203. If the pilot strength exceeds a pilot threshold, the terminal switches to a corresponding indoor superimposed frequency band according to the indication of the base station. The frequency point selection method provided by the embodiment of the present invention sends a route update request message RUR to the terminal, so that the terminal obtains the identifier of the indoor superimposed frequency band coverage area and the pilot strength of the indoor superimposed frequency band, and sends a route update response to the terminal. The base station, by which the base station can switch the terminal to the corresponding indoor superimposed frequency band according to the identifier of the indoor superimposed frequency band coverage area and the pilot intensity of the indoor superimposed frequency band measured by the terminal. Through this scheme, the indoor superimposed frequency band can be effectively utilized, and further, the data exchange rate and signal quality between the terminal and the base station can be improved.

Embodiment 2: An embodiment of the present invention provides a frequency point selection method. As shown in FIG. 3, the method includes the following steps:

301. The terminal sends a connection request to the base station.

The terminal is in a resident frequency band after being powered on, and the terminal accesses the frequency from the F 1 frequency of the reserved frequency band, and sends a connection request to the base station.

302. The base station sends a traffic channel assignment message TCA to the terminal, and instructs the terminal to switch to an outdoor superimposed frequency band. For example, the base station acquires an F2 frequency point from an outdoor superimposed frequency band and establishes a traffic channel. The base station sends a traffic channel assignment message TCA from the F 1 frequency point to instruct the terminal to switch to the F2 frequency point of the outdoor superimposed frequency band.

303. The terminal accesses the outdoor superposed frequency band.

After receiving the service channel assignment message TCA sent by the base station, the terminal accesses the outdoor superimposed frequency band F2 frequency point to perform services through the service channel established by the base station.

304. The terminal sends a traffic channel completion message TCC to the base station.

After the terminal accesses the F2 frequency point of the outdoor superimposed frequency band to perform the service, the terminal sends a traffic channel completion message TCC to the base station, and the base station completes the message TCC through the service channel, and confirms that the terminal switches to the outdoor superimposed frequency band. .

305. The base station determines whether the switch parameter preset in the base station is in an open state, and if the switch parameter is in an open state, performing step 306; if the switch parameter is in a closed state, not sending a route update to the terminal. The message RUR is requested to keep the terminal in the original frequency band.

After performing the steps 301 to 304, the base station may perform detection and detection of the switch parameters on the terminal in the outdoor superimposed frequency band. In the absence of the steps 301 to 304, the base station may directly perform the switch parameter on the terminal in the resident frequency band. Judgment detection. The following description will be respectively made.

In one aspect, the terminal is in a resident frequency band. The base station first detects and determines a switch parameter preset in the base station, and if the switch parameter is in an open state, sends the route update request message RUR to the terminal, if the switch parameter is in a closed state, The routing update request message RUR is not sent to the terminal to keep the terminal in the resident frequency band.

In another aspect, the terminal is in an outdoor superimposed frequency band. The base station first detects and determines a switch parameter preset in the base station, and if the switch parameter is in an open state, sends the route update request message RUR to the terminal, if the switch parameter is in a closed state, Then, the route update request message RUR is not sent to the terminal, so that the terminal is kept in the outdoor superimposed frequency band. 306. The base station sends a route update request message RUR to the terminal.

307. The terminal generates a route update response, where the route update response includes an identifier of the indoor superimposed frequency band coverage area of the terminal and a pilot strength of the indoor superimposed frequency band.

After receiving the route update request message RUR sent by the base station, the terminal acquires the identifier of the indoor superimposed frequency band coverage area and the pilot strength of the indoor superimposed frequency band, and generates a route update response.

308. The terminal sends a route update response to the base station. Through the route update response, the terminal transmits the identifier of the indoor superimposed band coverage area and the pilot strength of the indoor superimposed band to the base station.

309. The base station detects, by using the pilot strength in the route update response, that if the pilot strength does not exceed the pilot threshold, the base station does not instruct the terminal to perform handover; if the pilot strength If the pilot threshold is exceeded, step 3 10 is performed.

3 10. The base station adopts a hash HASH algorithm in the corresponding indoor superimposed frequency band, and selects a frequency point from the corresponding indoor superimposed frequency bands. The base station finds a corresponding indoor superimposed frequency band according to the identifier of the indoor superimposed frequency band coverage area, and uses a hash HASH algorithm in the corresponding indoor superimposed frequency band, and the HASH outputs a frequency point and the resident frequency band. The frequency points form a neighbor relationship, and then move to step 3 1 1.

Of course, in practical applications, the base station may also use other algorithms to select frequency points.

3 1 1. The base station establishes a connection with the terminal, and switches the terminal to the selected frequency point to perform a service.

The frequency point selection method provided by the embodiment of the present invention sends a route update request message RUR to the terminal, so that the terminal obtains the identifier of the indoor superimposed frequency band coverage area and the pilot strength of the indoor superimposed frequency band, and sends a route update response to the terminal. The base station, by which the base station can switch the terminal to the corresponding indoor superimposed frequency band according to the identifier of the indoor superimposed frequency band coverage area and the pilot intensity of the indoor superimposed frequency band measured by the terminal. Further, when multiple frequency points are deployed in the indoor superimposed frequency band, the base station system may adopt a HASH algorithm to quickly HASH a frequency point in multiple frequency points to establish a connection. Conduct business. Through this scheme, the indoor superimposed frequency band can be effectively utilized, and further, the data exchange rate and signal quality between the terminal and the base station can be improved. Embodiment 3: An embodiment of the present invention provides a frequency point selecting apparatus. On the one hand, in a base station, as shown in FIG. 4, the apparatus includes a transmitter 41, a receiver 42, and a first processor 43.

The transmitter 41 is configured to send a route update request message RUR to the terminal.

The receiver 42 is configured to receive a route update response returned by the terminal, where the route update response is generated by the terminal receiving the route update request message RUR, and the route update response includes an identifier of the indoor superimposed frequency band coverage area where the terminal is located. And the pilot strength of the indoor superimposed band.

The first processor 43 is configured to, when the pilot strength exceeds the pilot threshold, instruct the terminal to switch to the corresponding indoor super frequency band for performing services according to the identifier of the indoor superimposed frequency band coverage area.

Further, as shown in FIG. 5, the receiver 42 is further configured to receive a connection request of the terminal before sending the routing update request message to the terminal; the transmitter 41 is further configured to The terminal sends a service channel assignment message to instruct the terminal to perform the service to the outdoor superimposed frequency band. The device further includes a second processor 44, configured to receive the service channel completion message sent by the terminal, and confirm that the terminal switches to The outdoor superimposed frequency band performs a service.

Further, as shown in FIG. 6, the apparatus further includes a switch parameter detecting unit 45, configured to detect, before sending the routing update request message RUR to the terminal, whether a switch parameter preset in the base station is in a Open state. If the switch parameter is in the on state, the route update request message RUR is sent to the terminal; otherwise, the route update request message RUR is not sent to the terminal, so that the terminal is kept in the original frequency band.

In addition, as shown in FIG. 7, the first processor 43 further includes a frequency point selection module 43 1 and a user switching module 432.

The frequency point selection module 43 1 is configured to select one of the corresponding indoor superimposed frequency bands based on the hash HASH algorithm.

The user switching module 432 is configured to instruct the terminal to switch to the frequency point selected by the frequency point selection module 43 1 . On the other hand, the device in the terminal, as shown in FIG. 8, includes a terminal receiver 81, a terminal transmitter 82, and a switching unit 83.

The terminal receiver 81 is configured to receive a route update request message RUR sent from the base station.

The terminal transmitter 82 is configured to send a route update response message to the base station, where the route update response includes an identifier of the indoor superimposed frequency band coverage area and a pilot strength of the indoor superimposed frequency band.

The switching unit 83 is configured to switch to the corresponding indoor superimposed frequency band according to the indication of the base station.

Further, as shown in FIG. 9, the device in the terminal further includes a connection message sending unit 84, an assigned message receiving unit 85, and a completion message sending unit 86.

The connection message transmitting unit 84 is configured to send a connection message to the base station before receiving the route update request message RUR transmitted from the base station.

The assignment message receiving unit 85 is configured to receive the traffic channel assignment message TCA sent by the base station, and then perform the service to the outdoor superimposed frequency band.

The completion message sending unit 86 is configured to send a traffic channel completion message TCC to the base station after successfully accessing the outdoor super frequency band, to notify the base station that the terminal has successfully accessed the outdoor superimposed frequency band. The frequency point selecting apparatus provided by the embodiment of the present invention can send the route update request message RUR to the terminal, so that the terminal acquires the identifier of the indoor superimposed frequency band coverage area, regardless of whether the terminal is in the resident frequency band or the outdoor superimposed frequency band. And the pilot strength of the indoor superimposed frequency band, and generate a route update response to be sent back to the base station, thereby switching the terminal to the corresponding indoor superimposed frequency band. At the same time, when multiple frequency points are deployed in the indoor superimposed frequency band, the base station adopts the HASH algorithm to quickly HASH a frequency point in multiple frequency points to establish a connection for service, so that the indoor superimposed frequency band can be effectively utilized, and further , can improve the data exchange rate and signal quality between the terminal and the base station. A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk. The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Claim

A frequency point selection method, comprising:

Sending a route update request message to the terminal;

Receiving a route update response returned by the terminal, where the route update response includes an identifier of an indoor superimposed frequency band coverage area and a pilot strength of an indoor superimposed frequency band; if the pilot strength exceeds a pilot threshold, according to the pilot threshold The identifier of the indoor superimposed frequency band coverage area indicates that the terminal switches to a corresponding indoor superimposed frequency band.

The method according to claim 1, wherein before the sending the routing update request message to the terminal, the method further includes:

Receiving a connection request of the terminal;

Transmitting, by the terminal, a traffic channel assignment message to instruct the terminal to perform services in an outdoor superimposed frequency band;

Receiving a traffic channel completion message sent by the terminal and confirming that the terminal switches to the outdoor superimposed frequency band.

The method according to claim 1 or 2, wherein before the sending the routing update request message to the terminal, the method further includes:

Detecting whether the switch parameter preset in the base station is in an open state; if the switch parameter is in an open state, sending the route update request message to the terminal, otherwise, the route update request message is not sent to the terminal, Keep the terminal in the original frequency band.

The method according to claim 1, wherein the instructing the terminal to switch to the corresponding indoor superimposed frequency band comprises:

Using a hash HASH algorithm, selecting one of the corresponding indoor superimposed frequency bands;

Switching the terminal to the selected frequency point.

5. A frequency point selection method, characterized in that:

Receiving, by the terminal, a route update request message sent by the base station;

Sending, by the terminal, a route update response message to the base station, where the route update response includes an identifier of an indoor superimposed frequency band coverage area and an indoor superimposed frequency band of the terminal Pilot strength

The terminal switches to a corresponding indoor superimposed frequency band according to the indication of the base station.

The method according to claim 5, wherein, before receiving the routing update request message sent by the base station, the method further includes:

Sending a connection message to the base station;

Receiving a traffic channel assignment message sent by the base station, and then switching to the corresponding outdoor superposition frequency band;

After successfully accessing the outdoor superimposed frequency band, a traffic channel completion message is sent to the base station.

7. A base station, comprising:

The first processor is configured to: if the pilot strength exceeds a pilot threshold, instruct the terminal to switch to a corresponding indoor superposition frequency band for performing service according to the identifier of the indoor superimposed frequency band coverage area.

The base station according to claim 7, wherein the receiver is further configured to receive a connection request of the terminal before sending the routing update request message to the terminal;

The transmitter is further configured to send a traffic channel assignment message to the terminal, to instruct the terminal to perform services to an outdoor superimposed frequency band;

The base station further includes:

And a second processor, configured to receive a service channel completion message sent by the terminal, and confirm that the terminal switches to the outdoor super frequency band to perform a service.

The base station according to claim 7 or 8, further comprising: a third processor, configured to detect a switch preset to the base station before sending the route update request message to the terminal Whether the parameter is in an open state; if the switch parameter is in an open state, sending the routing update request message to the terminal, otherwise Sending the route update request message to the terminal, so that the terminal maintains the original frequency band.

The base station according to claim 7, wherein the first processor further comprises:

a frequency point selection module, configured to select one of the corresponding indoor superimposed frequency bands based on the hash HASH algorithm;

And a user switching module, configured to instruct the terminal to switch to a frequency point selected by the frequency selection module.

1 1. A terminal, comprising:

The terminal according to claim 11, further comprising: a connection message sending unit, configured to send a connection message to the base station before receiving the route update request message sent by the base station;

And an assignment message receiving unit, configured to receive a service channel assignment message sent by the base station, and then switch to the outdoor superimposed frequency band to perform a service;

And completing a message sending unit, configured to send a traffic channel completion message to the base station after successfully accessing the outdoor superposed frequency band.