WO2010149086A1

WO2010149086A1 - Method and system for enabling wireless signal indoor coverage

Info

Publication number: WO2010149086A1
Application number: PCT/CN2010/074640
Authority: WO
Inventors: 宋鹏
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-12-31
Filing date: 2010-06-28
Publication date: 2010-12-29
Also published as: CN102118816A

Abstract

The present invention discloses a method for enabling wireless signal indoor coverage. Base stations of multiple indoor cells neighboring or adjacent geographically, transmit the pseudorandom noise (PN) signals with the same pilot PNs in the forward pilot channels; when moving through each of the indoor cells, a mobile station (MS), according to the strength of the received PN signals from different paths, processes pilot active set. Meanwhile, the present invention also discloses a system for enabling wireless signal indoor coverage. By applying the resolution of the present invention, the MS is enabled to receive the same PN signals from different paths all the time when the MS moves through the cells with the same PNs, and the handover of the MS will not be triggered, and therefore the system instability is improved effectively resulting from dropped calls during handover.

Description

Indoor coverage method and wood field

This is related to multiple (C A) communication wood, especially

The method and system of indoor coverage. Background

Indoor coverage is the most important requirement of C A. Due to the penetration loss, the coverage of the outdoor environment is very limited, especially in large scales, and it is very deep coverage. In addition, looking at the modern rail transit, there are a large number of tunnels. The tunnel stretches ten miles in the mountains and is underground. The local and outdoor elements cannot be covered at all, but also a large number of meta-communication users are concentrated in the tunnel. Therefore, Good indoor coverage, coverage, capacity and service will be the basis for the success of CA Communication Wood, and it is also a major issue that CA must address.

Indoor coverage includes the same coverage, high coverage and coverage, and usually uses an indoor distribution base. Since the indoor break is much different, the small indoor coverage is small in general. On the other hand, the height and angle of RF placement in the tunnel are limited. Therefore, the size of the system in the case of God is much smaller than usual.

In the CA system, a small sequence (e do a do oe) on the forward track is small, that is, a sequence ( o O e ) or a sequence ( o ). The P of the small A that is locked in the terminal (S) of the small A is getting more and more, and the P of the smaller B is getting worse, S In small A to small B. S small A small B S switching, that is, S switching is a small difference of S crossing

In the above situation, under the existing wood, because the small to small and the different configuration P, S in the same small, because S receives more than P strong, the S does not switch, or even frequent switching. Looking at the increase in switching, it is possible that S, eventually the cellular communication system rises, and the stability of the system.

Content

In this regard, the main purpose of this is to provide a method and system for indoor coverage, which reduces the switching frequency in S and improves the stability of the communication system.

To the purpose of the wood

The method of indoor coverage provided by the present method includes a geographical location or a near-indoor small station standing on the forward track containing the same P P

S is small in each room, and receives the intensity of different P

Among them, the same P P P are the same.

In the above scheme, before the P containing the same P, the method steps are included in the indoor or small indoor or small, and the households of the household P are the same.

In the above scheme, the strength of different P received

, Hugh

S is less than the small P intensity in the medium , S removes P from the set to the small P intensity comparison in the media, in the set P.

In the above scheme, the method steps include the same synchronization of the small stationmates in the room, and the same in the reverse connection. The system of indoor coverage provided by this book includes the above, S, among them,

, the same P in the household, the P S in the forward channel containing the same P, the smallness of the different P received in each room passing through the coverage.

In the above scheme, S, steps are the same P intensity in each room.

In the above scheme, the steps are close to the same synchronization, and the same is used in the reverse connection.

In the above scheme, the strength of the different P received by S

The rest of the S is less than the intensity of the P in the medium, and S removes the P

S is compared to the small P-intensity comparison in the mediator, in the concentration of P.

The indoor coverage method and system provided by the present, the geographically close or near multiple indoor small standing stations on the forward track contain the same P PS in small through each room, receiving different strengths of P. , so that S can traverse in the small P with the same P, S always receives the same P, just different, then, S is the same as the small, and does not switch. This can be greatly Reduce the switching frequency of S in phase or near-simultaneous, and improve the stability of cellular communication system. Description

The flow chart of the method of indoor coverage

2 Yuanben’s meta-cap of the building

The flow chart of the method of 3

Schematic representation of the coverage of the middle and high

The flow chart of the method of 5

The flow diagram of the method of the method of the stipulation of the syllabus of the syllabus of the syllabus. Hugh way

The basic idea of this book is that the geographical position is close to or near the small indoor station. The P S containing the same P in the forward channel is small in each room, and receives the intensity of different Ps, not.

Among them, the same P P P are the same.

The following is a detailed explanation of the steps taken.

The method for indoor coverage, as shown in 1, the method includes the step 101 in the geographical location or near the multiple indoor small households the same P

Hugh, in the geographical location or near multiple indoor small, according to C A system C A2 00 xEV, the household P is the same as the P, and each station P on the forward track is the same.

Step 102 Each small indoor household has the same P, on the forward road. P with the same P

Steps, the same synchronization of the small stationmates in each room,

And the same in the reverse connection, S received the same letter in each small indoor coverage park, rabbit synchronization,

And the reverse connection is used differently, so that the S-friend's reverse can't be the same solution, S's and receive information.

Step 103 S is small in each room, and receives the intensity of different Ps

Hugh, S traverses in each room, the same P intensity in each room, S to the indoor small P intensity is lower than L (T_ OP), S removes P to S to the indoor small P The strength comparison ( _C ) is no longer in the concentration of P T_ RP T_C P in the existing C A200 system.

In the above method, the system of indoor coverage is provided, and the system includes the above, and the S, which is pre-positioned in the geographical proximity or near multiple indoors, according to the C A system, the household P is the same as the P.

, the same P in the household, the PS with the same P in the forward track, the small in the room that passes through the coverage, the intensity of the different P received, Hugh, small in the room covered by the coverage, S to The small P intensity in the medium is lower than that in the chamber, S removes the concentration of P into the small P intensity comparison in the medium, and concentrates P

, the step is close to the same synchronization, and the reverse is used to use the same

S, the same P intensity that is small in each room.

The method of this application is covered by the building's element, in which the indoor small 1~ indoor small force phase is near or small, the small indoor indicates that it is small in the building, and the small outdoor indicates that it is small outside the building. 2, 3, including the following steps Step 301 In the indoor small 1 ~ indoor small households the same P Step 302 indoor small indoor small households the same P, on the forward track contains the same P P

Step 303 S Small building outside the building, small crossing in the building, receiving the strength of different P

Hugh, S outdoor to the building mouth, that is, S from the small outdoor to the small 2, this, S can receive the small outdoor station PP o on the forward road, can also receive the indoor small 2 standing on the forward road PP. Since S is close to the outdoor small, the received P o intensity is large, S o remains the same, and the intensity received by S is lower than that of COmPn, but S is not small in the direction of the indoor, S to The received P intensity is not strong.

In the S building, S is small 2, S o is lower than T ROP , S o is shifted out, S to P COmPn , S , thus completing the secondary switching, S is covered from the outside to the indoor coverage. S is within the indoor coverage, S receives the forward direction

The intensity is already small. S indoor small 2 to indoor small 1, S can receive the indoor small 2 P, can also receive the indoor small P in the indoor small 1 , S to the indoor small 2 P intensity is lower than T_ RP, S will In the indoor small 2 P is removed, S is small indoor P T_C P , S will be small P in the room, S can arbitrarily traverse in the building.

In this, because the indoor small 1 indoor small base station is in the forward direction

The P on the upper force P, just different, S does not switch in the small indoor crossing. The high east is covered indoors, and the modern high is ten or even hundreds, while the high speed of life is at a high speed.

4, small 1, covering each small, but small is completely different, that is, each small forward is different, it rises or falls in each covered small high-speed, in the S The high-speed traversing of many small and frequent switching, as well as the small coverage received by S, is very easy to live, the experience of the land users. As shown, including the following steps

Step 501 in the small ~ middle of the same household P

Step 502 Small households have the same P, and P in the forward track contains the same P, uniform force P Step 503 S traverses each small, received different intensity of P

Hugh, S is from small 1 to small 2, this S can receive the P P of the small 1 standing on the forward track, and can also receive the P P of the small 2 standing on the forward track. Since S is close to the small one, the received small P intensity is large, and S keeps the small P in

In the same way, S receives a small P with a lower P intensity than near T_C P , but sees S to the small 2 direction, and S to the received small 2 P intensity is not strong.

In S small 2, S to small 1 intensity lower than T ROP S will move small P out, S to small 2 P intensity T_C P , S will be small 2 P accordingly, S can arbitrarily traverse in the building.

In this case, because of the uniform force P of all the base stations of the small 1 small in the forward direction, the S is different, and the S rides indoors and does not switch. 6 Another common method of covering the upper part of the sheep, the sheep use a small cover inside, and the outside is covered by small. There are also very good methods, S is in the same, the small P in the sudden increase, and the moment, the small small suddenly reduced to very weak, the small switch under the very easy S. In the same, the S in the instant, suddenly, the small small suddenly increased to a strong, and in use, the small P received by S has the same weakening, The small switch underneath is also very easy S. The method of meta-covering in the middle of the middle, as shown in 7, includes the following steps

Step 701 is the same in small indoors and small households. P 5 Step 702 Small and small households are the same P, and P in the forward channel contains the same P, uniform force P

Step 703 S is small in each small room, and the strength of the received P is different.

Hugh, S from small to small indoor 1

, this S receives a small P standing on the forward track

P, because S receives a small P intensity, S keeps a small P.

However, S suddenly receives a small indoor P, receives a small indoor P intensity T_C P , S will be small indoor small P5 S small indoor 1, the received small P intensity is lower than T_ R, S will be small P removed. Therefore, S feels only the P-green road, and does not switch. S can be arbitrarily traversed in the building.

In this case, because the indoor small 1 indoor small and small all base stations in the 0 forward direction of the P equal force P, just different, S ride

Small crossings in the room do not switch.

The above is better than the limit, and any repairs, equivalents, and the like made in the spirit and principles of this article are included in this warranty.

Claims

Claim

1. A method of indoor coverage, the method comprising: a geographically-phased or near-indoor small station standing on the forward track containing the same sequence (P) P

The terminal (S) is small in each room, and receives different intensities of P

Among them, the same P P P are the same.

2. The method of claim 1 is characterized in that, before the P containing the same P, the method steps include the same in the geographical location or near the middle, and the households of the household P are the same.

3. The method described in claim 1, which is characterized in that the strength of the received P is different,

S is less than the P in the medium

, S removes P from the set to the small P intensity comparison in the media, and concentrates in P.

4. The method of claim 1 to 3, wherein the method step includes the same synchronization of the small station buddies in the room, and the same use in the reverse connection.

5, the system of indoor coverage, its special features, including the above, S,

6. The system described in claim 5, which is characterized by, S, step The same P intensity is small in each room.

7. A system requiring 5 or 6 is characterized in that the steps are close to the same synchronization and the same in the reverse connection.

8. The system of requirement 5 is characterized in that the intensity of the different P received by S is less than the intensity of the small P in the medium, and S removes the concentration of P into the small P intensity in the medium. Compare, in the focus P.