CN101615950B - Method and device for transmitting public pilot frequency - Google Patents

Method and device for transmitting public pilot frequency Download PDF

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Publication number
CN101615950B
CN101615950B CN2008101268093A CN200810126809A CN101615950B CN 101615950 B CN101615950 B CN 101615950B CN 2008101268093 A CN2008101268093 A CN 2008101268093A CN 200810126809 A CN200810126809 A CN 200810126809A CN 101615950 B CN101615950 B CN 101615950B
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CN
China
Prior art keywords
antenna port
public guide
guide frequency
port number
subframe
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Expired - Fee Related
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CN2008101268093A
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Chinese (zh)
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CN101615950A (en
Inventor
姜静
孙云锋
于辉
夏树强
赵楠
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ZTE Corp
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ZTE Corp
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Priority to CN2008101268093A priority Critical patent/CN101615950B/en
Priority to PCT/CN2008/073566 priority patent/WO2009155767A1/en
Publication of CN101615950A publication Critical patent/CN101615950A/en
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Publication of CN101615950B publication Critical patent/CN101615950B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method for transmitting public pilot frequency. The method comprises the following step: the antenna port number which corresponds to the public pilot frequency transmitted by front four orthogonal frequency division multiplexing symbols of each subframe of user equipment matched with downlink dedicated pilot frequency is the maximal antenna port number matched by a base station. The invention also provides a device for transmitting the public pilot frequency. The invention provides a scheme for transmitting the public pilot frequency under the condition of not transmitting front two public pilot frequency links and improves the channel estimation performance of the dedicated pilot frequency.

Description

Public guide frequency sending method and device
Technical field
The present invention relates to moving communicating field, relate in particular to the public guide frequency sending method and the device of a kind of 3GPP LTE (3rdGeneration partnership project Long Term Evolution third generation mobile partner plans Long Term Evolution) system and LTE Advanced system.
Background technology
In the LTE system, descending special pilot frequency is used for downlink data shared channel (Physicaldownlink shared channel, abbreviate PDSCH as) phase reference that carries out demodulation, it carries out semi-static configuration by high level to user terminal (User Terminal abbreviates UE as).Wherein, descending special pilot frequency is sent by antenna port 5, and it is mainly used in the downlink reference signal that wave beam forms, the downlink reference signal of specific precoding, and the scene of parallel load.
LTE 50bis meeting has been passed through when using descending special pilot frequency, only send the working hypothesis of the public guide frequency of preceding two antenna ports, according to this method, can reduce pilot-frequency expense, and the channel estimating performance influence to the control channel that uses public guide frequency is less, use the UE of dedicated pilot can only use the two-way public guide frequency in the prescribed limits sub-district of two-way public guide frequency but only send, this will influence greatly, and other do not use the performance of the UE of dedicated pilot in this sub-district, so the restriction of only adopting preceding two-way public guide frequency has been removed in LTE 53# meeting.
But, also there is not relevant technical scheme at present for having removed the public guide frequency sending method that only adopts the restriction of preceding two-way public guide frequency.
Summary of the invention
Consider exist in the correlation technique for removed only adopt before the public guide frequency sending method of restriction of two-way public guide frequency, also do not have at present the problem of relevant technical scheme and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of public guide frequency sending method and device, to address the above problem.
According to an aspect of the present invention, provide a kind of public guide frequency sending method.
Public guide frequency sending method according to the embodiment of the invention comprises: for the subscriber equipment that has disposed descending special pilot frequency, the antenna port number of the public guide frequency correspondence that preceding four OFDM symbols of each subframe of subscriber equipment send is the maximum antenna port number of base station configuration.
Preferably, this method also comprises: for the subframe that comprises Physical Broadcast Channel, the antenna port number of the public guide frequency correspondence that Physical Broadcast Channel sends is the maximum antenna port number of base station configuration.
Further, this method also comprises: the antenna port number of the public guide frequency correspondence that other OFDM symbols in each subframe except that preceding four OFDM symbols and Physical Broadcast Channel send mostly is two most, and minimum is 0.
Further, this method also comprises: for the subscriber equipment of configurating downlink dedicated pilot not, the antenna port number of the public guide frequency correspondence that each OFDM symbol of each subframe of subscriber equipment sends is the maximum antenna port number of base station configuration.
According to an aspect of the present invention, provide a kind of public guide frequency dispensing device.
Public guide frequency dispensing device according to the embodiment of the invention comprises: first is provided with module, and the antenna port number that has been used for disposing the public guide frequency correspondence that preceding four OFDM symbols of each subframe of the subscriber equipment of descending special pilot frequency send is set to the maximum antenna port number of base station configuration; Sending module is used for sending public guide frequency based on the configuration of configuration module.
Wherein, first is provided with module also is used for: for the subframe that comprises Physical Broadcast Channel, the antenna port number of the public guide frequency correspondence that Physical Broadcast Channel sends is set to the maximum antenna port number of base station configuration; For other OFDM symbols except that preceding four OFDM symbols and Physical Broadcast Channel in the subframe, the antenna port number of the public guide frequency correspondence of its transmission is set to maximum two, minimum 0.
Preferably, this device also comprises: second is provided with module, and the antenna port number that is used for the public guide frequency correspondence that each OFDM symbol of each subframe of the subscriber equipment of configurating downlink dedicated pilot not sends is set to the maximum antenna port number of base station configuration.
Preferably, this device also comprises: judge module is used to judge whether subscriber equipment has disposed descending special pilot frequency.
By above-mentioned at least one technical scheme of the present invention, the public guide frequency delivery plan under a kind of situation that the two-way public guide frequency sends before non-employing is provided, improved the channel estimating performance of dedicated pilot.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is according to the public guide frequency under the Normal cyclicprefix frame structure of 3GPP TS 36.211 regulations of correlation technique and the mapping pattern of descending special pilot frequency and minimal physical Resource Block;
Fig. 2 is according to the descending special pilot frequency under the Extended cyclicprefix frame structure of 3GPP TS 36.211 regulations of correlation technique and the mapping pattern of minimal physical Resource Block;
Fig. 3 is the flow chart according to the public guide frequency sending method of the inventive method embodiment one;
Fig. 4 is the detailed process flow chart according to the public guide frequency sending method of the inventive method embodiment one;
Fig. 5 a is in the subframe according to the normal cyclic prefix that does not comprise PBCH of the embodiment of the invention, the pilot frequency design schematic diagram of the Physical Resource Block of the UE of configurating downlink dedicated pilot;
Fig. 5 b is in the subframe according to the normal cyclic prefix that does not comprise PBCH of the embodiment of the invention, not the pilot frequency design schematic diagram of the Physical Resource Block of the UE of configurating downlink dedicated pilot;
Fig. 6 a is in the subframe according to the normal cyclic prefix that comprises PBCH of the embodiment of the invention, the pilot frequency design schematic diagram of the Physical Resource Block of the UE of configurating downlink dedicated pilot;
Fig. 6 b is in the subframe according to the normal cyclic prefix that comprises PBCH of the embodiment of the invention, and the pilot tone of the Physical Resource Block of the UE of configurating downlink dedicated pilot sends the pattern schematic diagram;
Fig. 7 a is in the long loop prefix that does not comprise PBCH according to the embodiment of the invention, and the pilot tone of the Physical Resource Block of the UE of configurating downlink dedicated pilot sends the pattern schematic diagram;
Fig. 7 b is in the long loop prefix that does not comprise PBCH according to the embodiment of the invention, and the pilot tone of the Physical Resource Block of the UE of configurating downlink dedicated pilot sends the pattern schematic diagram;
Fig. 8 a is in the long loop prefix that comprises PBCH according to the embodiment of the invention, and the pilot tone of the Physical Resource Block of the UE of configurating downlink dedicated pilot sends the pattern schematic diagram;
Fig. 8 b is in the long loop prefix that comprises PBCH according to the embodiment of the invention, and the pilot tone of the Physical Resource Block of the UE of configurating downlink dedicated pilot sends the pattern schematic diagram;
Fig. 9 is the flow chart according to two the public guide frequency sending method of the inventive method embodiment;
Figure 10 is the structural framing figure according to the public guide frequency dispensing device of the embodiment of the invention.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
Method embodiment one
According to the embodiment of the invention one, provide a kind of public guide frequency sending method.
Fig. 3 is the flow chart according to the public guide frequency sending method of the embodiment of the invention one, and as shown in Figure 3, this method comprises:
Step 302, for the subscriber equipment that has disposed descending special pilot frequency (UE), preceding four OFDMs (Orthogonal Frequency DivisionMultiplexing of each subframe of UE, abbreviating OFDM as) the antenna port number of the public guide frequency correspondence that sends of symbol and PBCH is the maximum antenna port number, promptly the base station all sends public guide frequency according to the mapping pattern of 3GPP LTE standard code on the antenna port that is disposed;
Step 304, for the UE of configurating downlink dedicated pilot not, the antenna port number of the public guide frequency correspondence that each OFDM symbol of each subframe of UE sends is the maximum antenna port number, and promptly the base station all sends public guide frequency according to the mapping pattern of 3GPP LTE standard code on the antenna port that is disposed.
By the technical scheme that the embodiment of the invention one provides, the public guide frequency delivery plan under a kind of situation that the two-way public guide frequency sends before non-employing is provided, improved the channel estimating performance of dedicated pilot.
Wherein, for comprising Physical Broadcast Channel (Physical broadcast channel, abbreviate PBCH as) subframe, the base station is that the antenna port number of the public guide frequency correspondence of PBCH configuration is the maximum antenna port number, and promptly base station mapping pattern according to the 3GPPLTE standard code on the antenna port that is disposed all sends public guide frequency.
Preferably, the base station is a two-way for the antenna port number of the public guide frequency correspondence of other OFDM symbol configurations except that preceding four OFDM symbols and PBCH of each subframe, and promptly optional two antenna ports send public guide frequency according to the mapping pattern of 3GPP LTE standard code.
Fig. 4 is the detailed process flow chart according to the public guide frequency sending method of the inventive method embodiment one, and as shown in Figure 4, this method may further comprise the steps:
Step S402, the high level of base station judge whether the UE in the sub-district adopts descending special pilot frequency, if judged result is for being, execution in step S404 then, if judged result for not, execution in step S408 then;
Step S404, UE for the configurating downlink dedicated pilot, the antenna port number of the public guide frequency correspondence that preceding four OFDM symbols of each subframe of this UE send is the maximum antenna port number of base station configuration, for example, when the maximum antenna port number is four, preceding four OFDM symbols of each subframe, and the n in every frame fN in the mod4=0 subframe s6 RB in the middle of 0～3OFDM symbol of=1 time slot send four road public guide frequencies, wherein n fBe subframe numbers, n sBe timeslot number;
For the subframe that comprises PBCH, the antenna port number of the public guide frequency correspondence of the PBCH of each subframe of UE configuration also is the maximum antenna port number of base station configuration;
Step S406, the base station be this UE at preceding four OFDM symbols of each subframe and the OFDM symbol outside the PBCH, public guide frequency only sends on preceding two antenna ports;
Step S408, for the UE of configurating downlink dedicated pilot not, the antenna port number average of the public guide frequency correspondence that each OFDM symbol of each subframe of this UE sends is the maximum antenna port number of base station.
Be example with the subframe of normal cyclic prefix and the subframe of long loop prefix below, the embodiment of the invention described that wherein, the antenna port number of base station configuration is four:
Wherein, Fig. 5 a shows in the subframe of the normal cyclic prefix that does not comprise PBCH, the public guide frequency of Physical Resource Block that has disposed the UE of descending special pilot frequency sends schematic diagram, shown in Fig. 5 a, preceding four OFDM symbols of this subframe have sent four road public guide frequencies, sending the public guide frequency number is the maximum of antenna port number, wherein, and R 0Be the public guide frequency that antenna port 0 sends, R 1Be the public guide frequency that antenna port 1 sends, R 2Be the open pilot tone that antenna port 2 sends, R 3Be the public guide frequency of antenna port 3 transmissions, but in other ten OFDM symbols, have only antenna port 0 and antenna port 1 to send public guide frequency R respectively 0And R 1, promptly only utilize preceding two antenna ports to send public guide frequency;
Fig. 5 b shows in the subframe of the normal cyclic prefix that does not comprise PBCH, the public guide frequency of the Physical Resource Block of the UE of configurating downlink dedicated pilot does not send schematic diagram, shown in Fig. 5 b, in this subframe, except preceding four OFDM symbols can send four road public guide frequencies, other ten OFDM symbols also can send outside four road public guide frequencies, promptly each OFDM symbol of this subframe all can send four road public guide frequencies, the public guide frequency number that sends is the maximum of antenna port number, wherein, and R 0Be the public guide frequency that antenna port 0 sends, R 1Be the public guide frequency that antenna port 1 sends, R 2Be the open pilot tone that antenna port 2 sends, R 3Public guide frequency for antenna port 3 transmissions;
Fig. 6 a shows in the subframe of the normal cyclic prefix that comprises PBCH, the public guide frequency of Physical Resource Block that has disposed the UE of descending special pilot frequency sends schematic diagram, shown in Fig. 6 a, in this subframe, except preceding four OFDM symbols have sent four road public guide frequencies, its PBCH has also sent four road public guide frequencies, and the public guide frequency number of transmission is the maximum of antenna port number, wherein, R 0Be the public guide frequency that antenna port 0 sends, R 1Be the public guide frequency that antenna port 1 sends, R 2Be the open pilot tone that antenna port 2 sends, R 3Be the public guide frequency of antenna port 3 transmissions, but in this subframe, the OFDM symbol except that preceding four OFDM symbols and PBCH has only antenna port 0 and antenna port 1 to send public guide frequency R respectively 0And R 1, promptly only utilize preceding two antenna ports to send public guide frequency;
Fig. 6 b shows in the subframe of the normal cyclic prefix that comprises PBCH, the public guide frequency of the Physical Resource Block of the UE of configurating downlink dedicated pilot does not send schematic diagram, shown in Fig. 6 b, in this subframe, except preceding four OFDM symbols and PBCH can send four road public guide frequencies, other ten OFDM symbols also can send outside four road public guide frequencies, promptly each OFDM symbol of this subframe all can send four road public guide frequencies, and the public guide frequency number that sends is the maximum of antenna port number, wherein, and R 0Be the public guide frequency that antenna port 0 sends, R 1Be the public guide frequency that antenna port 1 sends, R 2Be the open pilot tone that antenna port 2 sends, R 3Public guide frequency for antenna port 3 transmissions;
Wherein, Fig. 7 a shows in the subframe of the long loop prefix that does not comprise PBCH, the public guide frequency of Physical Resource Block that has disposed the UE of descending special pilot frequency sends schematic diagram, shown in Fig. 7 a, preceding four OFDM symbols of this subframe have sent four road public guide frequencies, sending the public guide frequency number is the maximum of antenna port number, wherein, and R 0Be the public guide frequency that antenna port 0 sends, R 1Be the public guide frequency that antenna port 1 sends, R 2Be the open pilot tone that antenna port 2 sends, R 3Be the public guide frequency of antenna port 3 transmissions, but in other ten OFDM symbols, have only antenna port 0 and antenna port 1 to send public guide frequency R respectively 0And R 1, promptly only utilize preceding two antenna ports to send public guide frequency;
Fig. 7 b shows in the subframe of the normal cyclic prefix that does not comprise PBCH, the public guide frequency of the Physical Resource Block of the UE of configurating downlink dedicated pilot does not send schematic diagram, shown in Fig. 7 b, in this subframe, except preceding four OFDM symbols can send four road public guide frequencies, other ten OFDM symbols also can send outside four road public guide frequencies, promptly each OFDM symbol of this subframe all can send four road public guide frequencies, the public guide frequency number that sends is the maximum of antenna port number, wherein, and R 0Be the public guide frequency that antenna port 0 sends, R 1Be the public guide frequency that antenna port 1 sends, R 2Be the open pilot tone that antenna port 2 sends, R 3Public guide frequency for antenna port 3 transmissions;
Fig. 8 a shows in the subframe of the normal cyclic prefix that comprises PBCH, the public guide frequency of Physical Resource Block that has disposed the UE of descending special pilot frequency sends schematic diagram, shown in Fig. 8 a, in this subframe, except preceding four OFDM symbols have sent four road public guide frequencies, its PBCH has also sent four road public guide frequencies, and the public guide frequency number of transmission is the maximum of antenna port number, wherein, R 0Be the public guide frequency that antenna port 0 sends, R 1Be the public guide frequency that antenna port 1 sends, R 2Be the open pilot tone that antenna port 2 sends, R 3Be the public guide frequency of antenna port 3 transmissions, but in this subframe, the OFDM symbol except that preceding four OFDM symbols and PBCH has only antenna port 0 and antenna port 1 to send public guide frequency R respectively 0And R 1, promptly only utilize preceding two antenna ports to send public guide frequency;
Fig. 8 b shows in the subframe of the normal cyclic prefix that comprises PBCH, the public guide frequency of the Physical Resource Block of the UE of configurating downlink dedicated pilot does not send schematic diagram, shown in Fig. 8 b, in this subframe, except preceding four OFDM symbols and PBCH can send four road public guide frequencies, other ten OFDM symbols also can send outside four road public guide frequencies, promptly each OFDM symbol of this subframe all can send four road public guide frequencies, and the public guide frequency number that sends is the maximum of antenna port number, wherein, and R 0Be the public guide frequency that antenna port 0 sends, R 1Be the public guide frequency that antenna port 1 sends, R 2Be the open pilot tone that antenna port 2 sends, R 3Public guide frequency for antenna port 3 transmissions.
Method embodiment two
According to the embodiment of the invention two, provide a kind of public guide frequency sending method.
Fig. 9 is the public guide frequency sending method according to the embodiment of the invention two, and as shown in Figure 9, this method comprises:
Step 902, for the UE that has disposed descending special pilot frequency, the antenna port number of the public guide frequency correspondence that preceding four OFDM symbols of each subframe of UE and PBCH send is the maximum antenna port number, and promptly the base station all sends public guide frequency according to the mapping pattern of 3GPP LTE standard code on the antenna port that is disposed;
Step 904, for the UE of configurating downlink dedicated pilot not, the antenna port number of the public guide frequency correspondence that each OFDM symbol of each subframe of UE sends is the maximum antenna port number, and promptly the base station all sends public guide frequency according to the mapping pattern of 3GPP LTE standard code on the antenna port that is disposed.
By the technical scheme that the embodiment of the invention two provides, provide a kind of and saved pilot-frequency expense at the public guide frequency delivery plan that adopts under the descending special pilot frequency situation, effectively working for multiple MIMO pattern provides corresponding public guide frequency delivery plan.
Wherein, for the subframe that comprises PBCH, the base station is that the antenna port number of the public guide frequency correspondence of PBCH configuration is the maximum antenna port number, and promptly the base station all sends public guide frequency according to the mapping pattern of 3GPP LTE standard code on the antenna port that is disposed.
Preferably, the base station does not promptly send public guide frequency for the public guide frequency way of other OFDM symbol configurations except that preceding four OFDM symbols and PBCH of each subframe is 0 the road.
Device embodiment
The embodiment of the invention provides a kind of public guide frequency dispensing device.
Figure 10 is the public guide frequency dispensing device according to the embodiment of the invention, and as shown in figure 10, this device comprises:
First is provided with module 10, and the antenna port number that has been used for disposing the public guide frequency correspondence that preceding four OFDM symbols of each subframe of the subscriber equipment of descending special pilot frequency send is set to the maximum antenna port number of base station configuration;
Sending module 20 is used for sending public guide frequency based on the configuration of configuration module.
Wherein, above-mentioned first is provided with module 10 also is used for, for the subframe that comprises Physical Broadcast Channel, the antenna port number of the public guide frequency correspondence that Physical Broadcast Channel sends is set to the maximum antenna port number of base station configuration, for other OFDM symbols except that preceding four OFDM symbols and Physical Broadcast Channel in the subframe, the antenna port number of the public guide frequency correspondence of its transmission is set to maximum two, minimum 0.
Further, this device also comprises: second is provided with the module (not shown), the antenna port number that is used for the public guide frequency correspondence that each OFDM symbol of each subframe of the subscriber equipment of configurating downlink dedicated pilot not sends is set to the maximum antenna port number of base station configuration, and promptly the base station all sends public guide frequency according to the mapping pattern of 3GPP LTE standard code on the antenna port that is disposed;
The judge module (not shown) is used to judge whether subscriber equipment has disposed descending special pilot frequency.
The public guide frequency dispensing device that provides by the embodiment of the invention, public guide frequency delivery plan under a kind of situation that the two-way public guide frequency sends before non-employing is provided, by this technical scheme, improved the channel estimating performance of dedicated pilot, be easy to the covering of unified control channel and data channel, and various MIMO can work well.
As mentioned above, by means of public guide frequency sending method provided by the invention and/or device, public guide frequency delivery plan under a kind of situation that the two-way public guide frequency sends before non-employing is provided, by this technical scheme, improved the channel estimating performance of dedicated pilot, be easy to the covering of unified control channel and data channel, and various MIMO can work well.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. a public guide frequency sending method is characterized in that, comprising:
For the subscriber equipment that has disposed descending special pilot frequency, the antenna port number of the public guide frequency correspondence that preceding four OFDM symbols of each subframe of described subscriber equipment send is the maximum antenna port number of base station configuration;
For the subscriber equipment of configurating downlink dedicated pilot not, the antenna port number of the public guide frequency correspondence that each OFDM symbol of each subframe of described subscriber equipment sends is the maximum antenna port number of described base station configuration.
2. method according to claim 1 is characterized in that, described method also comprises:
For the subframe that comprises Physical Broadcast Channel, the antenna port number of the public guide frequency correspondence that described Physical Broadcast Channel sends is the maximum antenna port number of described base station configuration.
3. method according to claim 2 is characterized in that, described method also comprises:
The antenna port number of the public guide frequency correspondence that other OFDM symbols in each subframe except that described preceding four OFDM symbols and described Physical Broadcast Channel send mostly is two most, and minimum is 0.
4. a public guide frequency dispensing device is characterized in that, comprising:
First is provided with module, and the antenna port number that has been used for disposing the public guide frequency correspondence that preceding four OFDM symbols of each subframe of the subscriber equipment of descending special pilot frequency send is set to the maximum antenna port number of base station configuration;
Sending module is used for sending public guide frequency based on the configuration of described first configuration module;
Second is provided with module, and the antenna port number that is used for the public guide frequency correspondence that each OFDM symbol of each subframe of the subscriber equipment of configurating downlink dedicated pilot not sends is set to the maximum antenna port number of described base station configuration.
5. device according to claim 4 is characterized in that, described first is provided with module also is used for:
For the subframe that comprises Physical Broadcast Channel, the antenna port number of the public guide frequency correspondence that described Physical Broadcast Channel sends is set to the maximum antenna port number of described base station configuration;
For other OFDM symbols except that described preceding four OFDM symbols and described Physical Broadcast Channel in the subframe, the antenna port number of the public guide frequency correspondence of its transmission is set to maximum two, minimum 0.
6. according to claim 4 or 5 described devices, it is characterized in that described device also comprises:
Judge module is used to judge whether described subscriber equipment has disposed descending special pilot frequency.
CN2008101268093A 2008-06-24 2008-06-24 Method and device for transmitting public pilot frequency Expired - Fee Related CN101615950B (en)

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CN2008101268093A CN101615950B (en) 2008-06-24 2008-06-24 Method and device for transmitting public pilot frequency
PCT/CN2008/073566 WO2009155767A1 (en) 2008-06-24 2008-12-17 Common pilot transmission method and device

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Application Number Priority Date Filing Date Title
CN2008101268093A CN101615950B (en) 2008-06-24 2008-06-24 Method and device for transmitting public pilot frequency

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CN101615950B true CN101615950B (en) 2011-12-07

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CN102170646B (en) * 2010-02-26 2014-04-02 电信科学技术研究院 Method, system and device for configuring backhaul link resources of relay system
CN102378270B (en) * 2010-08-16 2015-12-09 上海贝尔股份有限公司 For determining the method for reference signal pattern

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CN1396733A (en) * 2001-07-14 2003-02-12 华为技术有限公司 Method for emitting diversity code via common pilot channel
WO2007036787A2 (en) * 2005-09-27 2007-04-05 Nokia Corporation Pilot structure for multicarrier transmissions
EP1898542A1 (en) * 2005-06-14 2008-03-12 NTT DoCoMo INC. Transmitting apparatus, transmitting method, receiving apparatus and receiving method

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CN1988408A (en) * 2006-11-29 2007-06-27 北京邮电大学 Antenna circulation delay diversity method for small interval and transmitting and receiving device

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1396733A (en) * 2001-07-14 2003-02-12 华为技术有限公司 Method for emitting diversity code via common pilot channel
EP1898542A1 (en) * 2005-06-14 2008-03-12 NTT DoCoMo INC. Transmitting apparatus, transmitting method, receiving apparatus and receiving method
WO2007036787A2 (en) * 2005-09-27 2007-04-05 Nokia Corporation Pilot structure for multicarrier transmissions

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