WO2010048866A1 - 信号发送方法和装置 - Google Patents
信号发送方法和装置 Download PDFInfo
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- WO2010048866A1 WO2010048866A1 PCT/CN2009/074595 CN2009074595W WO2010048866A1 WO 2010048866 A1 WO2010048866 A1 WO 2010048866A1 CN 2009074595 W CN2009074595 W CN 2009074595W WO 2010048866 A1 WO2010048866 A1 WO 2010048866A1
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- frequency band
- tdd
- fdd
- band
- signal transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
Definitions
- the present invention relates to mobile communication technologies, and in particular, to a signal transmission method and apparatus when a time division duplex (TDD) system and a frequency division duplex (FDD) system are adjacent to a frequency band.
- TDD time division duplex
- FDD frequency division duplex
- the TDD frequency band corresponding to the TDD system is adjacent to the FDD frequency band corresponding to the FDD system, specifically, the TDD frequency band is adjacent to the FDD downlink frequency band, and the TDD frequency band and the FDD uplink are present.
- the frequency band is adjacent to both cases. At this point, it is necessary to use certain measures to solve the cross interference problem that may occur between the two.
- Figure 1 is a schematic diagram of a solution when the TDD band is adjacent to the FDD downlink band.
- a certain bandwidth is reserved between the TDD frequency band and the FDD downlink frequency band as a protection band. No signal is sent or received inside.
- Figure 2 is a schematic diagram of the solution when the TDD band is adjacent to the FDD uplink band.
- a certain bandwidth is reserved between the TDD frequency band and the FDD uplink frequency band as a protection band. No signal is sent or received inside.
- Another object of the present invention is to provide two types of signal transmitting apparatuses capable of improving frequency resource utilization.
- a signal transmitting method when the TDD frequency band corresponding to the duplex TDD system is adjacent to the FDD frequency band corresponding to the frequency division duplex FDD system, in the TDD frequency band and the
- a guard band is set between the FDD bands, and the method further includes:
- the protection band is used for signal transmission by one of the FDD system and the TDD system during a period in which the TDD band coincides with a signal transmission direction in the FDD band.
- a signal transmitting device the device further comprising:
- a first determining unit configured to determine whether a TDD frequency band corresponding to the time division duplex TDD system is adjacent to a frequency division duplex FDD frequency band corresponding to the time division, and if yes, notifying the first sending unit to perform its own function
- the first sending unit is configured to receive a notification message from the first determining unit, and in a time period in which the TDD frequency band is consistent with a signal sending direction in the FDD frequency band, a signal sending device,
- the device includes: a second determining unit, configured to determine whether an FDD frequency band corresponding to the frequency division duplex FDD system is adjacent to a time division duplex TDD frequency band corresponding thereto, and if yes, notify the second sending unit to perform its own function;
- the second sending unit is configured to receive a notification message from the second determining unit, and in a time period in which the TDD frequency band is consistent with a signal sending direction in the FDD frequency band,
- the technical solution does not perform any signal transmission and reception in the protection band as in the prior art, but in the time period in which the signal transmission direction in the TDD frequency band and the FDD frequency band is consistent, since there is no need to consider the intersection of the uplink and downlink signals at this time.
- the interference problem that is, there is no need to set the guard band, so the protection band is used by the TDD system or the FDD system, and the signal is transmitted by using the signal, and the signal transmission direction in the TDD band and the FDD band is inconsistent, due to this It is necessary to set protection to avoid cross interference between the uplink and downlink signals, so the original protection band is kept unchanged, that is, no signal is transmitted and received in the protection band, thereby improving the utilization of frequency resources.
- FIG. 1 is a schematic diagram of a solution when the TDD frequency band is adjacent to the FDD downlink frequency band
- FIG. 2 is a schematic diagram of a solution when the TDD frequency band is adjacent to the FDD uplink frequency band
- FIG. 3 is the first signaling method of the present invention.
- FIG. 4 is a schematic diagram of a manner of using a guard band in a first embodiment of the method according to the present invention
- FIG. 5 is a schematic diagram of a signal transmitting manner in a first embodiment of the method according to the present invention
- FIG. 6 is a flowchart of a second embodiment of a signal transmitting method according to the present invention.
- FIG. 8 is a schematic diagram of a signal transmission manner in a second embodiment of the method according to the present invention.
- FIG. 9 is a schematic structural diagram of a first embodiment of a signal transmitting apparatus according to the present invention.
- FIG. 10 is a schematic diagram of a manner of using a guard band in a third embodiment of the method according to the present invention;
- FIG. 12 is a schematic structural diagram of a second embodiment of a signal transmitting apparatus according to the present invention. Mode for carrying out the invention
- the present invention proposes a signal transmission method when the frequency bands are adjacent.
- the TDD frequency band corresponding to the TDD system is adjacent to the FDD frequency band corresponding to the FDD system
- the prior art will be
- the guard band set between the TDD band and the FDD band is used for the FDD system or the TDD system to perform single-direction signal transmission in a part of time, thereby improving the utilization of frequency resources.
- the specific implementation includes: using the protection band to perform signal transmission by the FDD system or the TDD system in a time period in which the TDD frequency band and the FDD frequency band are in the same direction; and the signal transmission direction in the TDD frequency band and the FDD frequency band is inconsistent. During the time period, processing can be performed in an existing manner, that is, no signal is transmitted or received in the guard band.
- the FDD system needs to know the uplink and downlink configuration information of the TDD system in advance, that is, during which time period the TDD system will send the uplink signal, and during which time period, the downlink signal will be sent, so that the FDD system can determine the information according to the information.
- Which time periods are the time periods in which the TDD frequency band is consistent with the signal transmission direction in the FDD frequency band, and which are the time periods in which the signal transmission directions in the TDD frequency band and the FDD frequency band are inconsistent.
- 3 is a flow chart of a first embodiment of a signal transmitting method of the present invention. It is assumed that the FDD frequency band in this embodiment is the FDD downlink frequency band. As shown in Figure 3, the following steps are included:
- Step 301 The FDD system acquires uplink and downlink configuration information of the TDD system.
- the specific acquisition manner may be: the FDD system receives and saves the uplink and downlink configuration information of the manually input TDD system; or, through the pre-defined interface between the FDD system and the TDD system, the FDD system receives and saves the uplink and downlink configuration sent by the TDD system. information.
- the FDD system receives and saves the uplink and downlink configuration sent by the TDD system. information.
- this is only an example. If you use other methods, you can achieve the same purpose.
- Step 302 The FDD system determines, according to the obtained uplink and downlink configuration information of the TDD system, a time period in which the TDD system uses the TDD frequency band to transmit the downlink signal and a time period in which the uplink signal is sent.
- the FDD system may use the TDD frequency band to transmit downlink signals during a certain period of time, and in the next time period, it may use the TDD frequency band to transmit uplink signals.
- the FDD system determines, according to the uplink and downlink configuration information of the acquired TDD system, which time periods are the time periods in which the TDD system uses the TDD frequency band for uplink signal transmission, and which time periods are used by the TDD system to use the TDD frequency band for downlink. The time period during which the signal was sent.
- Step 303 During a period in which the TDD system uses the TDD frequency band to transmit the downlink signal, the FDD system uses the guard band set between the TDD frequency band and the FDD frequency band to perform downlink signal transmission; and the TDD system uses the TDD frequency band to perform uplink signal transmission time. In the segment, no signal is transmitted or received in the guard band.
- the FDD frequency band in this embodiment is the FDD downlink frequency band
- the signal transmission direction in the FDD frequency band and the TDD frequency band is consistent during the time period in which the TDD system uses the TDD frequency band for downlink signal transmission, that is, two paths. There is no cross interference between the signals.
- the protection band between the TDD band and the FDD band is not If there is too much meaning, it will cause waste of frequency resources. Therefore, in this embodiment, during the time period in which the TDD system uses the TDD frequency band to transmit downlink signals, the FDD system utilizes the protection band and uses it. The transmission of the downlink signal.
- the direction of signal transmission in the FDD frequency band and the TDD frequency band is inconsistent, that is, there is a cross interference problem between the two signals, then in this case
- the guard band set between the TDD band and the FDD band needs to be retained, and no signal transmission or reception is allowed in the guard band.
- FIG. 4 is a schematic diagram of the use of the guard band in the first embodiment of the method of the present invention. It can be seen intuitively from Figure 4 that during the time period in which the TDD system uses the TDD frequency band for downlink signal transmission, the FDD system uses the guard band for downlink signal transmission; and the TDD system uses the TDD frequency band for uplink signal transmission time. In the segment, the protective tape will play the same role as in the prior art and will not be occupied.
- FIG. 5 is a schematic diagram of a signal transmission manner in the first embodiment of the method according to the present invention.
- fl, and ⁇ respectively correspond to the TDD frequency band, the guard band and the FDD downlink frequency band; fl and the upper small blocks respectively represent different time segments; and the small blocks marked by the dotted lines on f2 indicate that no signal is sent or received. segment.
- the signal transmission is performed in a downlink and uplink manner. It is obvious that the time period in which the TDD system uses the TDD frequency band for uplink signal transmission will correspond to the small line indicated by the dotted line in G. Piece.
- the frequency band occupied by the guard band can be used together with other FDD frequency bands corresponding to the FDD system, such as ⁇ , that is, together as the downlink available bandwidth of the FDD system.
- the downlink available bandwidth of the FDD system will Greater than the uplink available bandwidth, thus forming an uplink and downlink asymmetric transmission bandwidth; in other words, if each frequency band is called a carrier, then the number of available downlink carriers of the FDD system (guard band plus FDD) in certain time periods The frequency band) will be greater than the number of available upstream carriers.
- the present invention provides a better solution.
- FIG. 6 is a flow chart of a second embodiment of a signal transmitting method according to the present invention. It is assumed that the FDD frequency band in this embodiment is the FDD uplink frequency band. As shown in Figure 6, the following steps are included:
- Step 601 The FDD system obtains uplink and downlink configuration information of the TDD system.
- Step 602 The FDD system determines, according to the obtained uplink and downlink configuration information of the TDD system, a time period in which the TDD system uses the TDD frequency band to transmit the downlink signal and a time period in which the uplink signal is sent.
- steps 601 ⁇ 602 is the same as the specific implementation of steps 301 ⁇ 302, and will not be described again.
- Step 603 During a time period in which the TDD system uses the TDD frequency band to perform uplink signal transmission, the FDD system uses the guard band set between the TDD frequency band and the FDD frequency band to perform uplink signal transmission; when the TDD system uses the TDD frequency band to perform downlink signal transmission time In the segment, no signal is transmitted or received in the guard band.
- the FDD frequency band in this embodiment is the FDD uplink frequency band
- the signal transmission direction in the FDD frequency band and the TDD frequency band is consistent during the time period in which the TDD system uses the TDD frequency band for uplink signal transmission, that is, two paths. There is no cross interference between the signals.
- the guard band set between the TDD frequency band and the FDD frequency band does not have much significance, and the frequency resource is wasted. Therefore, in this embodiment, the TDD system uses the TDD frequency band for uplink signal transmission.
- the protection band is utilized by the FDD system to transmit the uplink signal.
- the FDD frequency band and the TDD frequency band In the time period when the TDD system uses the TDD frequency band for downlink signal transmission, the FDD frequency band and the TDD frequency band The signal transmission direction is inconsistent, that is, there is a cross interference problem between the two signals. In this case, the protection band between the TDD frequency band and the FDD frequency band needs to be retained, in the protection band. No signal transmission or reception is allowed inside.
- FIG. 7 is a schematic diagram of the use of the protective tape in the second embodiment of the method of the present invention. It can be seen intuitively from Figure 7 that during the time period in which the TDD system uses the TDD frequency band for uplink signal transmission, the FDD system uses the guard band for uplink signal transmission; and the TDD system uses the TDD frequency band for downlink signal transmission time. In the segment, the protective tape will play the same role as in the prior art and will not be occupied.
- FIG. 8 is a schematic diagram of a signal transmission manner in a second embodiment of the method according to the present invention.
- f4, f5 and f6 represent the TDD frequency band, the guard band and the FDD uplink frequency band respectively; the small blocks on f4 and f5 respectively represent different time periods; and the small blocks marked by the dotted lines on f5 indicate that no signal is performed.
- the time period for sending and receiving As shown in Figure 8, in the TDD frequency band, it is assumed that the signal transmission is performed in a downlink or uplink manner. It is obvious that the time period in which the TDD system uses the TDD frequency band for downlink signal transmission in f4 will correspond to the small line indicated by the dotted line in f5. Piece.
- the uplink resources on f5 are discontinuous in time, in practical applications, when the FDD system uses the guard band for signal transmission, the frequency band occupied by the guard band and other corresponding to the FDD system may be used. FDD bands, such as f6, are used together. In this way, in some time periods, the uplink available bandwidth of the FDD system will be greater than the downlink available bandwidth, thereby forming an uplink and downlink asymmetric transmission bandwidth; in other words, if each frequency band is referred to as a carrier, then in some During the time period, the number of available uplink carriers of the FDD system will be greater than the number of available downlink carriers.
- FIG. 9 is a schematic structural diagram of a first embodiment of a signal transmitting apparatus according to the present invention.
- the device includes: The first determining unit 91 is configured to determine whether the TDD frequency band corresponding to the TDD system is adjacent to the FDD frequency band corresponding to the TDD frequency band, and if yes, notify the first sending unit 92 to perform its own function; otherwise, perform processing according to an existing manner;
- the first sending unit 92 is configured to receive the notification message from the first determining unit 91, and use the protection band disposed between the TDD frequency band and the FDD frequency band in a time period in which the TDD frequency band and the signal transmission direction in the FDD frequency band are consistent.
- the signal is sent; the unit is further configured to perform no signal transmission and reception in the guard band during a period in which the signal transmission direction in the TDD frequency band and the FDD frequency band are inconsistent.
- the first sending unit 92 may specifically include:
- the first receiving subunit 921 is configured to receive the notification message from the first determining unit 91, and notify the first sending subunit 922 to perform its own function when the FDD frequency band is the FDD downlink frequency band, when the FDD frequency band is When the FDD uplink frequency band is notified, the second sending subunit 923 is notified to perform its own function;
- the first sending subunit 922 is configured to receive the notification message from the first receiving subunit 921, and use the guard band to perform downlink signal transmission during the time period in which the TDD system uses the TDD frequency band to perform downlink signal transmission, and utilize TDD in the TDD system. During the time period in which the frequency band transmits the uplink signal, no signal is transmitted or received in the guard band;
- the second sending subunit 923 is configured to receive the notification message from the first receiving subunit 921, and use the guard band to perform uplink signal transmission during the time period in which the TDD system uses the TDD frequency band to perform uplink signal transmission, and utilize TDD in the TDD system. During the time period in which the frequency band transmits the downlink signal, no signal is transmitted or received in the guard band.
- the first sending unit 92 may further include:
- the obtaining subunit 924 is configured to obtain uplink and downlink configuration information of the TDD system, and notify the first sending subunit 922 and the second sending subunit 923;
- the first transmitting subunit 922 and the second transmitting subunit 923 are based on the received TDD system
- the uplink and downlink configuration information of the system is used to know the time period during which the TDD system transmits the downlink signal by using the TDD frequency band and the time period during which the uplink signal is transmitted.
- the following describes a specific implementation manner in which the TDD system uses the guard band for signal transmission in a time period in which the TDD band and the FDD band are in the same direction of signal transmission.
- TDD Time Division Duplex
- it may use the TDD frequency band to transmit downlink signals during a certain period of time, and in the next time period, it may use the TDD frequency band to transmit uplink signals.
- TDD frequency band For the TDD system itself, when it uses its TDD band for downlink signal transmission, it is known when to use the TDD band for uplink signal transmission.
- the FDD frequency band in this embodiment is the FDD downlink frequency band.
- the signal transmission direction in the FDD frequency band and the TDD frequency band will be the same, that is, two There is no cross interference problem between the road signals.
- the guard band set between the TDD band and the FDD band does not have much significance, and the frequency resource is wasted. Therefore, in this embodiment, the TDD system uses the TDD band for downlink signal transmission.
- the protection band is utilized by the TDD system, and the downlink signal is transmitted.
- the direction of signal transmission in the FDD frequency band and the TDD frequency band is inconsistent, that is, there is a cross interference problem between the two signals, then in this case
- the guard band set between the TDD band and the FDD band needs to be retained, and no signal transmission or reception is allowed in the guard band.
- FIG. 10 is a schematic diagram of the use of the protection band in the third embodiment of the method of the present invention. It can be seen intuitively from FIG. 10 that during the time period in which the TDD system uses the TDD frequency band for downlink signal transmission, the TDD system simultaneously uses the guard band to transmit the downlink signal; and in the TDD. During the time period during which the system uses the TDD frequency band for uplink signal transmission, the protection band will play the same role as in the prior art and will not be occupied.
- fl, and ⁇ respectively correspond to the TDD frequency band, the guard band and the FDD downlink frequency band; the small blocks on fl and f2 respectively represent different time segments; and the small blocks marked on the upper dotted line indicate the time when no signal is sent or received. segment.
- the signal transmission is performed according to the downlink and uplink alternate manners.
- the time period in which the TDD system uses the TDD frequency band for uplink signal transmission will correspond to the small line indicated by the dotted line in G. Piece.
- the band occupied by the guard band and other TDD bands corresponding to the TDD system such as fl ?
- the downlink available bandwidth of the TDD system will be greater than the uplink available bandwidth, thereby forming an uplink and downlink asymmetric transmission bandwidth; If each frequency band is called a carrier, then the number of available downlink carriers (protection band and TDD band) of the TDD system will be greater than the number of available uplink carriers in some time periods.
- the present invention provides a better solution.
- the FDD frequency band in this embodiment is the FDD uplink frequency band. Then, in the time period in which the TDD system uses the TDD frequency band for uplink signal transmission, the signal transmission direction in the FDD frequency band and the TDD frequency band will be the same, that is, There is no cross interference problem between the two signals. In this case, the guard band set between the TDD band and the FDD band does not have much significance, and the frequency resource is wasted. Therefore, in this embodiment, the TDD system uses the TDD band for uplink signals. During the transmission period, the protection band is utilized by the TDD system to transmit the uplink signal.
- the TDD is set in the TDD.
- the guard band between the frequency band and the FDD band needs to be retained, and no signal transmission or reception is allowed in the guard band.
- FIG. 11 is a schematic diagram of the use of the protection band in the fourth embodiment of the method of the present invention. It can be seen intuitively from FIG. 11 that during the time period in which the TDD system uses the TDD frequency band for uplink signal transmission, the TDD system simultaneously uses the guard band to transmit the uplink signal; and the TDD system uses the TDD frequency band to perform the downlink signal transmission. During the time period, the protective tape will play the same role as in the prior art and will not be occupied.
- f4, f5 and f6 correspond to the TDD frequency band, the guard band and the FDD uplink frequency band respectively; the small blocks on f4 and f5 respectively represent different time periods; and the small blocks marked by the dotted lines on f5 indicate that no signal is performed.
- the time period for sending and receiving As shown in Figure 8, in the TDD frequency band, it is assumed that the signal transmission is performed in the manner of downlink and uplink alternates. Obviously, the time period in which the TDD system uses the TDD frequency band for downlink signal transmission in f4 will correspond to the small line marked by the dotted line in f5. Piece.
- the frequency band occupied by the guard band can be used together with other TDD bands corresponding to the TDD system, such as f4.
- the uplink available bandwidth of the TDD system will be greater than the downlink available bandwidth, thereby forming an uplink and downlink asymmetric transmission bandwidth; in other words, if each frequency band is referred to as a carrier, then in some During the time period, the number of available uplink carriers of the TDD system will be greater than the number of available downlink carriers.
- FIG. 12 is a schematic structural diagram of a second embodiment of a signal transmitting apparatus according to the present invention. As shown in Figure 12, the device includes:
- a second determining unit 121 configured to determine an FDD frequency band corresponding to the FDD system and itself Whether the corresponding TDD frequency band is adjacent, if yes, notifying the second sending unit 122 to perform its own function; if not, processing according to the existing manner;
- the second sending unit 122 is configured to receive the notification message from the second determining unit 121, and use a protection band disposed between the TDD frequency band and the FDD frequency band in a time period in which the TDD frequency band and the signal transmission direction in the FDD frequency band are consistent.
- the signal is sent; the unit is further configured to perform no signal transmission and reception in the guard band during a period in which the signal transmission direction in the TDD frequency band and the FDD frequency band are inconsistent.
- the second sending unit 122 may specifically include:
- the second receiving sub-unit 1221 is configured to receive the notification message from the second determining unit 121, and notify the third sending sub-unit 1222 to perform its own function when the FDD frequency band is the FDD downlink frequency band, when the FDD frequency band is the FDD uplink frequency band. Notifying the fourth sending subunit 1223 to perform its own function;
- the third sending sub-unit 1222 is configured to receive the notification message from the second receiving sub-unit 1221, and use the guard band to perform downlink signal transmission during the time period in which the downlink signal is transmitted by using the TDD frequency band, and perform uplinking by using the TDD frequency band. During the time period in which the signal is transmitted, no signal is transmitted or received in the guard band;
- the fourth sending sub-unit 1223 is configured to receive the notification message from the second receiving sub-unit 1221, and use the guard band to perform uplink signal transmission during the time period of using the TDD frequency band for uplink signal transmission, and perform downlinking by using the TDD frequency band. During the time period in which the signal is transmitted, no signal is transmitted or received in the guard band.
- the technical solution of the present invention does not perform any signal transmission and reception in the guard band as in the prior art, but in a time period in which the signal transmission direction in the TDD frequency band and the FDD frequency band coincides, There is no need to consider the cross-interference problem of the uplink and downlink signals, that is, no It is necessary to set the guard band, so the FDD system or the TDD system uses the guard band to transmit the signal, and in the time period when the signal transmission direction in the TDD band and the FDD band is inconsistent, the protection needs to be set at this time.
- the ground has improved the utilization of frequency resources.
- the solution of the present invention can be applied to any TDD system and FDD system.
- the TDD system can be Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), time division- TD-CDMA (Time Division-Code Division Multiple Access), Long Term Evolution-Time Division Duplex (LTE-TDD) or Global Interoperability (Wimax, World Interoperability) For Microwave Access, etc.
- the FDD system may be Wideband Code Division Multiple Access (WCDMA) or Long Term Evolution-Frequency Division Duplex (LTE-FDD), etc. The possible situations are no longer enumerated.
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Abstract
本发明公开了一种信号发送方法,当时分双工(TDD)系统所对应的 TDD频段与频分双工(FDD)系统所对应的 FDD频段相邻时,在所述 TDD频段与所述 FDD频段之间设置一保护带;在所述 TDD频段与所述 FDD频段内的信号发送方向一致的时间段内,FDD系统或 TDD系 5 统利用该保护带进行信号发送;在所述 TDD频段与所述 FDD频段内的信号发送方向不一致的时间段内,在该保护带内不进行任何的信号收 发。本发明同时公开了两种信号发送装置。应用本发明所述的方法和装置,能够较好地提高频率资源的利用率。
Description
信号发送方法和装置
技术领域
本发明涉及移动通信技术, 特别涉及一种时分双工 (TDD , Time Division Duplex ) 系统与频分双工 ( FDD, Frequency Division Duplex ) 系统的频段相邻时的信号发送方法和装置。 发明背景
根据目前的频谱资源分配方式, 经常会出现 TDD 系统所对应的 TDD频段与 FDD系统所对应的 FDD频段相邻的情况, 具体来说, 包括 TDD频段与 FDD下行频段相邻以及 TDD频段与 FDD上行频段相邻这 两种情况。 此时, 就需要釆用一定的措施来解决两者之间可能出现的交 叉干扰问题。
图 1为现有当 TDD频段与 FDD下行频段相邻时的解决方式示意图。 如图 1所示, 为了防止 TDD频段内的上行信号与 FDD下行频段内的下 行信号之间出现交叉干扰, 在 TDD频段与 FDD下行频段之间预留一定 的带宽作为保护带, 在该保护带内不进行任何的信号收发。
图 2为现有当 TDD频段与 FDD上行频段相邻时的解决方式示意图。 如图 2所示, 为了防止 TDD频段内的下行信号与 FDD上行频段内的上 行信号之间出现交叉干扰, 在 TDD频段与 FDD上行频段之间预留一定 的带宽作为保护带, 在该保护带内不进行任何的信号收发。
上述方式虽然能够较好地解决当 TDD频段与 FDD频段相邻时可能 出现的交叉干扰问题, 但是, 这种方式也存在一定的问题, 以图 1所示 为例: 当 TDD频段内发送的信号为下行信号时, 该信号与 FDD下行频 段内的下行信号之间是不存在交叉干扰的, 也就是说, 这种情况下, 即
使设置保护带也没有太大的意义; 但在现有方式中, 无论 TDD频段内 发送的是上行还是下行信号, 该保护带都会一直存在, 而且在保护带内 不允许进行任何的信号收发, 这样就造成了资源的浪费, 即降低了频率 资源利用率。 发明内容
有鉴于此, 本发明的主要目的在于提供一种信号发送方法, 能够提 高频率资源利用率。
本发明的另一目的在于提供两种信号发送装置, 能够提高频率资源 利用率。
为达到上述目的, 本发明的技术方案是这样实现的:
一种信号发送方法, 当时分双工 TDD系统所对应的 TDD频段与频 分双工 FDD系统所对应的 FDD频段相邻时, 在所述 TDD频段与所述
FDD频段之间设置一保护带, 该方法还包括:
在所述 TDD频段与所述 FDD频段内的信号发送方向一致的时间段 内, 由所述 FDD系统和 TDD系统中的一个利用所述保护带进行信号发 送。
一种信号发送装置, 还装置包括:
第一确定单元, 用于确定时分双工 TDD系统所对应的 TDD频段与 自身所对应的频分双工 FDD频段是否相邻, 如果是, 则通知第一发送 单元执行自身功能;
所述第一发送单元, 用于接收来自所述第一确定单元的通知消息, 并在所述 TDD频段与所述 FDD频段内的信号发送方向一致的时间段内, 一种信号发送装置, 该装置包括:
第二确定单元, 用于确定频分双工 FDD系统所对应的 FDD频段与 自身所对应的时分双工 TDD频段是否相邻, 如果是, 则通知第二发送 单元执行自身功能;
所述第二发送单元, 用于接收来自所述第二确定单元的通知消息, 并在所述 TDD频段与所述 FDD频段内的信号发送方向一致的时间段内, 可见, 釆用本发明的技术方案, 不再像现有技术一样在保护带内不 进行任何的信号收发, 而是在 TDD频段与 FDD频段内的信号发送方向一 致的时间段内, 由于此时无需考虑上下行信号的交叉干扰问题, 即没有 必要设置保护带, 所以由 TDD系统或 FDD系统将保护带利用起来, 利用 其进行信号的发送, 而在 TDD频段与 FDD频段内的信号发送方向不一致 的时间段内, 由于此时需要设置保护带来避免上下行信号之间的交叉干 扰, 所以保留原保护带不变, 即在保护带内不进行任何的信号收发, 从 而较好地提高了频率资源的利用率。 附图简要说明
下面将通过参照附图佯细描述本发明的示例性实施例, 使本领域的 普通技术人员更清楚本发明的上述及其它特征和优点, 附图中:
图 1为现有当 TDD频段与 FDD下行频段相邻时的解决方式示意图; 图 2为现有当 TDD频段与 FDD上行频段相邻时的解决方式示意图; 图 3为本发明信号发送方法第一实施例的流程图;
图 4为本发明方法第一实施例中的保护带利用方式示意图; 图 5为本发明方法第一实施例中的信号发送方式示意图;
图 6为本发明信号发送方法第二实施例的流程图;
图 Ί为本发明方法第二实施例中的保护带利用方式示意图;
图 8为本发明方法第二实施例中的信号发送方式示意图;
图 9为本发明信号发送装置第一实施例的组成结构示意图; 图 10为本发明方法第三实施例中的保护带利用方式示意图; 图 11为本发明方法第四实施例中的保护带利用方式示意图; 图 12为本发明信号发送装置第二实施例的组成结构示意图。 实施本发明的方式
为解决现有技术中存在的问题, 本发明中提出一种频段相邻时的信 号发送方法,当 TDD系统所对应的 TDD频段与 FDD系统所对应的 FDD 频段相邻时, 将现有技术中设置于 TDD频段与 FDD频段之间的保护带 用于 FDD系统或 TDD系统进行部分时间内的单方向信号发送, 从而提 高频率资源的利用率。 具体实现包括: 在 TDD频段与 FDD频段内的信 号发送方向一致的时间段内, 由 FDD系统或 TDD系统利用所述保护带 进行信号发送; 另外, 在 TDD频段与 FDD频段内的信号发送方向不一 致的时间段内, 可按现有方式进行处理, 即在所述保护带内不进行任何 信号的收发。
为使本发明的目的、 技术方案及优点更加清楚明白, 以下参照附图 并举实施例, 对本发明做进一步的佯细说明。
下面首先介绍在 TDD频段与 FDD频段内的信号发送方向一致的时 间段内, 由 FDD系统利用所述保护带进行信号发送的具体实现方式。
对于这种方式, FDD系统需要预先获知 TDD系统的上下行配置信 息, 即 TDD 系统将在哪些时间段发送上行信号, 在哪些时间段发下行 信号等, 这样, FDD 系统即可根据这些信息确定出哪些时间段为 TDD 频段与 FDD频段内的信号发送方向一致的时间段, 哪些为 TDD频段与 FDD频段内的信号发送方向不一致的时间段。
图 3为本发明信号发送方法第一实施例的流程图。 假设本实施例中 的 FDD频段为 FDD下行频段。 如图 3所示, 包括以下步骤:
步骤 301: FDD系统获取 TDD系统的上下行配置信息。
具体获取方式可以是: FDD系统接收并保存人工输入的 TDD系统 的上下行配置信息; 或者, 通过 FDD系统与 TDD系统之间预先定义的 接口, FDD系统接收并保存 TDD系统发送来的上下行配置信息。 当然, 此处仅为举例说明, 如果釆用其它的方式, 能够达到同样的目的, 也是 可以的。
步骤 302: FDD系统根据获取到的 TDD系统的上下行配置信息, 确定 TDD系统利用 TDD频段进行下行信号发送的时间段以及进行上行 信号发送的时间段。
对于 TDD系统来说, 在某一时间段内, 其可能利用 TDD频段进行 下行信号的发送, 而在下一时间段内, 则可能利用 TDD频段进行上行 信号的发送。 本步骤中, FDD系统就是要根据获取到的 TDD系统的上 下行配置信息, 确定出哪些时间段为 TDD系统利用 TDD频段进行上行 信号发送的时间段, 哪些时间段为 TDD系统利用 TDD频段进行下行信 号发送的时间段。
步骤 303: 在 TDD系统利用 TDD频段进行下行信号发送的时间段 内, FDD系统利用设置于 TDD频段与 FDD频段之间的保护带进行下行 信号发送; 在 TDD系统利用 TDD频段进行上行信号发送的时间段内, 在所述保护带内不进行任何信号的收发。
由于本实施例中的 FDD频段为 FDD下行频段, 所以, 在 TDD系 统利用 TDD频段进行下行信号发送的时间段内, FDD频段与 TDD频段 内的信号发送方向是一致的, 也就是说, 两路信号之间不会存在交叉干 扰问题。 这种情况下, 设置于 TDD频段与 FDD频段之间的保护带就没
有太大的存在意义了, 反而会造成频率资源的浪费, 所以本实施例中, 在 TDD系统利用 TDD频段进行下行信号发送的时间段内, 由 FDD系 统将该保护带利用起来, 利用其进行下行信号的发送。 而在 TDD 系统 利用 TDD频段进行上行信号发送的时间段内, FDD频段与 TDD频段内 的信号发送方向是不一致的, 也就是说, 两路信号之间会存在交叉干扰 问题, 那么这种情况下, 设置于 TDD频段与 FDD频段之间的保护带则 需要继续保留, 在该保护带内不允许进行任何的信号收发。
下面结合附图, 对步骤 303的具体实现作进一步地佯细说明: 图 4为本发明方法第一实施例中的保护带利用方式示意图。 从图 4 中可以艮直观地看出, 在 TDD系统利用 TDD频段进行下行信号发送的 时间段内, FDD系统利用保护带进行下行信号的发送; 而在 TDD系统 利用 TDD频段进行上行信号发送的时间段内, 保护带所起到的作用将 与现有技术中相同, 不会被占用。
进一步地,图 5为本发明方法第一实施例中的信号发送方式示意图。 其中的 fl、 和 β分别对应 TDD频段、保护带以及 FDD下行频段; fl 以及 上的小块分别表示不同的时间段; 而 f2上的虚线所标注的小块 则表示不进行任何信号收发的时间段。 如图 5所示, 在 TDD频段内, 假设按照下行、 上行交替的方式进行信号发送, 那么显然, fl 中 TDD 系统利用 TDD频段进行上行信号发送的时间段将对应 G中的虚线所标 注的小块。
FDD系统利用保护带进行信号发送时,可以将该保护带所占用的频段与 FDD系统所对应的其它 FDD频段, 如 β聚合在一起使用, 即共同作为 FDD系统的下行可用带宽。 这样, 在某些时间段内 (即 TDD系统利用 TDD频段进行下行信号发送的时间段), FDD系统的下行可用带宽将会
大于上行可用带宽, 从而形成上下行不对称的传输带宽; 换句话说, 如 果将每一个频段称为一个载波, 那么在某些时间段内, FDD系统的可用 下行载波个数(保护带加 FDD频段)将会大于可用上行载波个数。 这 样, 对于某些需要较大下行带宽的场景, 本发明中即提供了一种较好的 解决方式。
图 6为本发明信号发送方法第二实施例的流程图。 假设本实施例中 的 FDD频段为 FDD上行频段。 如图 6所示, 包括以下步骤:
步骤 601: FDD系统获取 TDD系统的上下行配置信息。
步骤 602: FDD系统根据获取到的 TDD系统的上下行配置信息, 确定 TDD系统利用 TDD频段进行下行信号发送的时间段以及进行上行 信号发送的时间段。
步骤 601 ~ 602的具体实现与步骤 301 ~ 302的具体实现相同, 不再 赘述。
步骤 603: 在 TDD系统利用 TDD频段进行上行信号发送的时间段 内, FDD系统利用设置于 TDD频段与 FDD频段之间的保护带进行上行 信号发送; 在 TDD系统利用 TDD频段进行下行信号发送的时间段内, 在所述保护带内不进行任何信号的收发。
由于本实施例中的 FDD频段为 FDD上行频段, 所以, 在 TDD系 统利用 TDD频段进行上行信号发送的时间段内, FDD频段与 TDD频段 内的信号发送方向是一致的, 也就是说, 两路信号之间不会存在交叉干 扰问题。 这种情况下, 设置于 TDD频段与 FDD频段之间的保护带就没 有太大的存在意义了, 反而会造成频率资源的浪费, 所以本实施例中, 在 TDD系统利用 TDD频段进行上行信号发送的时间段内, 由 FDD系 统将该保护带利用起来, 利用其进行上行信号的发送。 而在 TDD 系统 利用 TDD频段进行下行信号发送的时间段内, FDD频段与 TDD频段内
的信号发送方向是不一致的, 也就是说, 两路信号之间会存在交叉干扰 问题, 那么这种情况下, 设置于 TDD频段与 FDD频段之间的保护带则 需要继续保留, 在该保护带内不允许进行任何的信号收发。
下面结合附图, 对本步骤的具体实现作进一步地佯细说明: 图 7为本发明方法第二实施例中的保护带利用方式示意图。 从图 7 中可以艮直观地看出, 在 TDD系统利用 TDD频段进行上行信号发送的 时间段内, FDD系统利用保护带进行上行信号的发送; 而在 TDD系统 利用 TDD频段进行下行信号发送的时间段内, 保护带所起到的作用将 与现有技术中相同, 不会被占用。
进一步地,图 8为本发明方法第二实施例中的信号发送方式示意图。 其中的 f4、 f5和 f6分别表示 TDD频段、保护带以及 FDD上行频带; f4 以及 f5上的小块分别表示不同的时间段; 而 f5上的虚线所标注的小块 则表示不进行任何的信号收发的时间段。 如图 8所示, 在 TDD频段内, 假设按照下行、 上行交替的方式进行信号发送, 那么显然, f4 中 TDD 系统利用 TDD频段进行下行信号发送的时间段将对应 f5中的虚线所标 注的小块。
与 类似, 由于 f5上的上行资源在时间上是不连续的, 所以在实 际应用中, 当 FDD 系统利用保护带进行信号发送时, 可以将该保护带 所占用的频段与 FDD系统所对应的其它 FDD频段,如 f6聚合在一起使 用。 这样, 在某些时间段内, FDD系统的上行可用带宽将会大于下行可 用带宽, 从而形成上下行不对称的传输带宽; 换句话说, 如果将每一个 频段称为一个载波, 那么在某些时间段内, FDD系统的可用上行载波个 数将会大于可用下行载波个数。
基于上述方法, 图 9为本发明信号发送装置第一实施例的组成结构 示意图。 如图 9所示, 该装置包括:
第一确定单元 91 ,用于确定 TDD系统所对应的 TDD频段与自身所 对应的 FDD频段是否相邻, 如果是, 则通知第一发送单元 92执行自身 功能; 否则, 按照现有方式进行处理;
第一发送单元 92, 用于接收来自第一确定单元 91的通知消息, 并 在 TDD频段与 FDD频段内的信号发送方向一致的时间段内, 利用设置 于 TDD频段和 FDD频段之间的保护带进行信号发送; 该单元还可进一 步用于,在 TDD频段与 FDD频段内的信号发送方向不一致的时间段内, 在保护带内不进行任何信号的收发。
其中, 第一发送单元 92中可具体包括:
第一接收子单元 921 , 用于接收来自第一确定单元 91的通知消息, 并在当所述 FDD频段为 FDD下行频段时 , 通知第一发送子单元 922执 行自身功能, 当所述 FDD频段为 FDD上行频段时, 通知第二发送子单 元 923执行自身功能;
第一发送子单元 922, 用于接收来自第一接收子单元 921的通知消 息, 并在 TDD系统利用 TDD频段进行下行信号发送的时间段内, 利用 保护带进行下行信号发送, 在 TDD系统利用 TDD频段进行上行信号发 送的时间段内, 在保护带内不进行任何信号的收发;
第二发送子单元 923 , 用于接收来自第一接收子单元 921的通知消 息, 并在 TDD系统利用 TDD频段进行上行信号发送的时间段内, 利用 保护带进行上行信号发送, 在 TDD系统利用 TDD频段进行下行信号发 送的时间段内, 在保护带内不进行任何信号的收发。
另外, 第一发送单元 92中还可进一步包括:
获取子单元 924, 用于获取 TDD系统的上下行配置信息, 并通知给 第一发送子单元 922和第二发送子单元 923;
第一发送子单元 922和第二发送子单元 923根据接收到的 TDD系
统的上下行配置信息, 获知 TDD系统利用 TDD频段进行下行信号发送 的时间段以及进行上行信号发送的时间段。
下面介绍在 TDD频段与 FDD频段内的信号发送方向一致的时间段 内, 由 TDD系统利用所述保护带进行信号发送的具体实现方式。
对于 TDD系统来说, 在某一时间段内, 其可能利用 TDD频段进行 下行信号的发送, 而在下一时间段内, 则可能利用 TDD频段进行上行 信号的发送。显然,对于 TDD系统本身来说,其自身什么时候利用 TDD 频段进行下行信号发送, 什么时候利用 TDD频段进行上行信号发送是 已知的。
方法第三实施例
假设本实施例中的 FDD频段为 FDD下行频段, 那么, 在 TDD系 统利用 TDD频段进行下行信号发送的时间段内, FDD频段与 TDD频段 内的信号发送方向将是一致的, 也就是说, 两路信号之间不会存在交叉 干扰问题。 这种情况下, 设置于 TDD频段与 FDD频段之间的保护带就 没有太大的存在意义了,反而会造成频率资源的浪费,所以本实施例中, 在 TDD系统利用 TDD频段进行下行信号发送的时间段内, 由 TDD系 统将该保护带利用起来, 利用其进行下行信号的发送。 而在 TDD 系统 利用 TDD频段进行上行信号发送的时间段内, FDD频段与 TDD频段内 的信号发送方向是不一致的, 也就是说, 两路信号之间会存在交叉干扰 问题, 那么这种情况下, 设置于 TDD频段与 FDD频段之间的保护带则 需要继续保留, 在该保护带内不允许进行任何的信号收发。
下面结合附图, 对本实施例的具体实现作进一步地佯细说明: 图 10 为本发明方法第三实施例中的保护带利用方式示意图。 从图 10中可以艮直观地看出,在 TDD系统利用 TDD频段进行下行信号发送 的时间段内, TDD系统同时利用保护带进行下行信号的发送;而在 TDD
系统利用 TDD频段进行上行信号发送的时间段内, 保护带所起到的作 用将与现有技术中相同, 不会被占用。
具体的信号发送方式如图 5所示。其中的 fl、 和 β分别对应 TDD 频段、 保护带以及 FDD下行频段; fl以及 f2上的小块分别表示不同的 时间段;而 上的虚线所标注的小块则表示不进行任何信号收发的时间 段。 如图 5所示, 在 TDD频段内, 假设按照下行、 上行交替的方式进 行信号发送, 那么显然, fl中 TDD系统利用 TDD频段进行上行信号发 送的时间段将对应 G中的虚线所标注的小块。 以将保护带所占用的频段与 TDD 系统所对应的其它 TDD频段, 如 fl ?合在一起使用, 共同作为下行可用带宽。 这样, 在某些时间段内 (即 TDD系统利用 TDD频段进行下行信号发送的时间段), TDD系统的下 行可用带宽将会大于上行可用带宽, 从而形成上下行不对称的传输带 宽; 换句话说, 如果将每一个频段称为一个载波, 那么在某些时间段内, TDD系统的可用下行载波个数(保护带以及 TDD频段)将会大于可用 上行载波个数。 这样, 对于某些需要较大下行带宽的场景, 本发明中即 提供了一种较好的解决方式。
方法第四实施例
假设本实施例中的 FDD频段为 FDD上行频段, 那么, 在 TDD系 统利用 TDD频段进行上行信号发送的时间段内, FDD频段与 TDD频段 内的信号发送方向将会是一致的, 也就是说, 两路信号之间不存在交叉 干扰问题。 这种情况下, 设置于 TDD频段与 FDD频段之间的保护带就 没有太大的存在意义了,反而会造成频率资源的浪费,所以本实施例中, 在 TDD系统利用 TDD频段进行上行信号的发送的时间段内, 由 TDD 系统将该保护带利用起来, 利用其进行上行信号的发送。 而在 TDD 系
统利用 TDD频段进行下行信号发送的时间段内, FDD频段与 TDD频段 内的信号发送方向是不一致的, 也就是说, 两路信号之间存在交叉干扰 问题, 那么这种情况下, 设置于 TDD频段与 FDD频段之间的保护带则 需要继续保留, 在该保护带内不允许进行任何的信号收发。
下面结合附图, 对本实施例的具体实现作进一步地佯细说明: 图 11 为本发明方法第四实施例中的保护带利用方式示意图。 从图 11中可以艮直观地看出,在 TDD系统利用 TDD频段进行上行信号发送 的时间段内, TDD系统同时利用保护带进行上行信号的发送;而在 TDD 系统利用 TDD频段进行下行信号发送的时间段内, 保护带所起到的作 用将与现有技术中相同, 不会被占用。
具体信号发送方式如图 8所示。 其中的 f4、 f5和 f6分别对应 TDD 频段、 保护带以及 FDD上行频带; f4以及 f5上的小块分别表示不同的 时间段;而 f5上的虚线所标注的小块则表示不进行任何的信号收发的时 间段。 如图 8所示, 在 TDD频段内, 假设按照下行、 上行交替的方式 进行信号发送, 那么显然, f4中 TDD系统利用 TDD频段进行下行信号 发送的时间段将对应 f5中的虚线所标注的小块。
与 类似, 由于 f5上的上行资源在时间上是不连续的, 所以在实 际应用中, 可以将保护带所占用的频段与 TDD系统所对应的其它 TDD 频段, 如 f4聚合在一起使用。 这样, 在某些时间段内, TDD系统的上 行可用带宽将会大于下行可用带宽, 从而形成上下行不对称的传输带 宽; 换句话说, 如果将每一个频段称为一个载波, 那么在某些时间段内, TDD系统的可用上行载波个数将会大于可用下行载波个数。
图 12 为本发明信号发送装置第二实施例的组成结构示意图。 如图 12所示, 该装置包括:
第二确定单元 121 , 用于确定 FDD系统所对应的 FDD频段与自身
所对应的 TDD频段是否相邻, 如果是, 则通知第二发送单元 122执行 自身功能; 如果不是, 则按照现有方式进行处理;
第二发送单元 122, 用于接收来自第二确定单元 121的通知消息, 并在 TDD频段与 FDD频段内的信号发送方向一致的时间段内, 利用设 置于 TDD频段与 FDD频段之间的保护带进行信号发送; 该单元还可进 一步用于, 在 TDD频段与 FDD频段内的信号发送方向不一致的时间段 内, 在保护带内不进行任何信号的收发。
其中, 第二发送单元 122中可具体包括:
第二接收子单元 1221 ,用于接收来自第二确定单元 121的通知消息, 并在当 FDD频段为 FDD下行频段时, 通知第三发送子单元 1222执行 自身功能, 当 FDD频段为 FDD上行频段时, 通知第四发送子单元 1223 执行自身功能;
第三发送子单元 1222, 用于接收来自第二接收子单元 1221的通知 消息, 并在利用 TDD频段进行下行信号发送的时间段内, 同时利用保 护带进行下行信号发送, 在利用 TDD频段进行上行信号发送的时间段 内, 在保护带内不进行任何信号的收发;
第四发送子单元 1223 , 用于接收来自第二接收子单元 1221的通知 消息, 并在利用 TDD频段进行上行信号发送的时间段内, 同时利用保 护带进行上行信号发送, 在利用 TDD频段进行下行信号发送的时间段 内, 在保护带内不进行任何信号的收发。
图 9和图 12所示装置的具体工作流程请参照对应方法实施例中的 说明, 此处不再赘述。
总之, 釆用本发明的技术方案, 不再像现有技术一样在保护带内不 进行任何的信号收发, 而是在 TDD频段与 FDD频段内的信号发送方向 一致的时间段内, 由于此时无需考虑上下行信号的交叉干扰问题, 即没
有必要设置保护带, 所以由 FDD系统或 TDD系统将保护带利用起来, 利用其进行信号的发送, 而在 TDD频段与 FDD频段内的信号发送方向 不一致的时间段内, 由于此时需要设置保护带来避免上下行信号之间的 交叉干扰, 所以保留原保护带不变, 即在保护带内不进行任何的信号收 发, 从而在解决了上下行信号之间的交叉干扰问题的同时, 较好地提高 了频率资源的利用率。
而且, 本发明所述方案可适用于任何的 TDD系统和 FDD系统, 比 如, 所述 TDD 系统可以是时分-同步码分多址 (TD-SCDMA , Time Division- Synchronous Code Division Multiple Access ) , 时分-码分多址 ( TD-CDMA, Time Division- Code Division Multiple Access )、 长期演进 -时分双工 ( LTE-TDD , Long Term Evolution- Time Division Duplex )或 啟波接入全球互通网络 ( Wimax, World Interoperability for Microwave Access )等, 所述 FDD系统可以是宽带码分多址(WCDMA, Wideband Code Division Multiple Access )或长期演进-频分双工(LTE-FDD, Long Term Evolution- Frequency Division Duplex )等, 其它可能的情况不再一 一列举。
以上所述仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡 在本发明的精神和原则之内, 所做的任何修改、 等同替换、 改进等, 均 应包含在本发明的保护范围之内。
Claims
1、 一种信号发送方法, 当时分双工 TDD系统所对应的 TDD频段 与频分双工 FDD系统所对应的 FDD频段相邻时, 在所述 TDD频段与 所述 FDD频段之间设置一保护带, 其特征在于, 该方法还包括:
在所述 TDD频段与所述 FDD频段内的信号发送方向一致的时间段 内, 由所述 FDD系统和 TDD系统中的一个利用所述保护带进行信号发 送。
2、 根据权利要求 1所述的方法, 其特征在于, 该方法进一步包括: 在所述 TDD频段与所述 FDD频段内的信号发送方向不一致的时间 段内 , 在所述保护带内不进行任何信号的收发。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述 TDD频段 与所述 FDD频段内的信号发送方向一致的时间段包括:
当所述 FDD频段为 FDD下行频段时,所述 TDD系统利用所述 TDD 频段进行下行信号发送的时间段;
当所述 FDD频段为 FDD上行频段时,所述 TDD系统利用所述 TDD 频段进行上行信号发送的时间段;
所述 TDD频段与所述 FDD频段内的信号发送方向不一致的时间段 包括:
当所述 FDD频段为 FDD下行频段时,所述 TDD系统利用所述 TDD 频段进行上行信号发送的时间段;
当所述 FDD频段为 FDD上行频段时,所述 TDD系统利用所述 TDD 频段进行下行信号发送的时间段。
4、 根据权利要求 1所述的方法, 其特征在于, 若由 FDD系统利用 所述保护带进行信号发送, 则包括:
当所述 FDD频段为 FDD下行频段时, 所述 FDD系统将所述保护 带与所述 FDD频段聚合在一起共同作为下行可用带宽, 并利用所述下 行可用带宽进行下行信号发送; 或者, 所述 FDD 系统将所述保护带以 及所述 FDD频段分别作为一个载波, 并将这两个载波共同作为可用下 行载波, 利用所述可用下行载波进行下行信号发送;
当所述 FDD频段为 FDD上行频段时, 所述 FDD系统将所述保护 带与所述 FDD频段聚合在一起共同作为上行可用带宽, 并利用所述上 行可用带宽进行上行信号发送; 或者, 所述 FDD 系统将所述保护带以 及所述 FDD频段分别作为一个载波, 并将这两个载波共同作为可用上 行载波, 利用所述可用上行载波进行上行信号发送。
5、 根据权利要求 4所述的方法, 其特征在于, 在由 FDD系统利用 所述保护带进行信号发送之前, 进一步包括:
所述 FDD 系统获取所述 TDD 系统的上下行配置信息, 根据所述 TDD系统的上下行配置信息确定所述 TDD频段与所述 FDD频段内的信 号发送方向一致的时间段, 以及所述 TDD频段与所述 FDD频段内的信 号发送方向不一致的时间段。
6、 根据权利要求 5所述的方法, 其特征在于, 所述 FDD系统获取 所述 TDD系统的上下行配置信息包括:
所述 FDD系统接收并保存人工输入的所述 TDD系统的上下行配置 信息;
或者, 所述 FDD系统接收并保存所述 TDD系统发送来的上下行配 置信息。
7、 根据权利要求 1所述的方法, 其特征在于, 若由 TDD系统利用 所述保护带进行信号发送, 则包括:
当所述 TDD频段为 TDD下行频段时, 所述 TDD系统将所述保护
带与自身所对应的 TDD频段聚合在一起共同作为下行可用带宽, 并利 用所述下行可用带宽进行下行信号发送; 或者, 所述 TDD 系统将所述 保护带以及所述 TDD频段分别作为一个载波, 并将这两个载波共同作 为可用下行载波, 利用所述可用下行载波进行下行信号发送;
当所述 TDD频段为 TDD上行频段时, 所述 TDD系统将所述保护 带与自身所对应的 TDD频段聚合在一起共同作为上行可用带宽, 并利 用所述上行可用带宽进行上行信号发送; 或者, 所述 TDD 系统将所述 保护带以及所述 TDD频段分别作为一个载波, 并将这两个载波共同作 为可用上行载波, 利用所述可用上行载波进行上行信号发送。
8、 根据权利要求 1或 2所述的方法, 其特征在于,
所述 FDD 系统包括: 宽带码分多址 WCDMA 系统以及长期演进- 频分双工 LTE-FDD系统;
所述 TDD系统包括: 时分-同步码分多址 TD-SCDMA系统、 时分- 码分多址 TD-CDMA系统、 长期演进-时分双工 LTE-TDD系统以及啟波 接入全球互通网络 Wimax系统。
9、 一种信号发送装置, 其特征在于, 还装置包括:
第一确定单元, 用于确定时分双工 TDD系统所对应的 TDD频段与 自身所对应的频分双工 FDD频段是否相邻, 如果是, 则通知第一发送 单元执行自身功能;
所述第一发送单元, 用于接收来自所述第一确定单元的通知消息, 并在所述 TDD频段与所述 FDD频段内的信号发送方向一致的时间段 发送。
10、 根据权利要求 9所述的装置, 其特征在于, 所述第一发送单元 进一步用于, 在所述 TDD频段与所述 FDD频段内的信号发送方向不一
致的时间段内, 在所述保护带内不进行任何信号的收发。
11、根据权利要求 10所述的装置, 其特征在于, 所述第一发送单元 包括:
第一接收子单元, 用于接收来自所述第一确定单元的通知消息, 并 在当所述 FDD频段为 FDD下行频段时, 通知第一发送子单元执行自身 功能, 当所述 FDD频段为 FDD上行频段时, 通知第二发送子单元执行 自身功能;
所述第一发送子单元, 用于接收来自所述第一接收子单元的通知消 息, 并在所述 TDD系统利用所述 TDD频段进行下行信号发送的时间段 内,利用所述保护带进行下行信号发送,在所述 TDD系统利用所述 TDD 频段进行上行信号发送的时间段内, 在所述保护带内不进行任何信号的 收发;
所述第二发送子单元, 用于接收来自所述第一接收子单元的通知消 息, 并在所述 TDD系统利用所述 TDD频段进行上行信号发送的时间段 内,利用所述保护带进行上行信号发送,在所述 TDD系统利用所述 TDD 频段进行下行信号发送的时间段内, 在所述保护带内不进行任何信号的 收发。
12、根据权利要求 11所述的装置, 其特征在于, 所述第一发送单元 中进一步包括:
获取子单元, 用于获取所述 TDD 系统的上下行配置信息, 并通知 给所述第一发送子单元和第二发送子单元;
所述第一发送子单元和所述第二发送子单元根据接收到的所述 TDD系统的上下行配置信息,获知所述 TDD系统利用所述 TDD频段进 行下行信号发送的时间段以及进行上行信号发送的时间段。
13、 一种信号发送装置, 其特征在于, 该装置包括:
第二确定单元, 用于确定频分双工 FDD系统所对应的 FDD频段与 自身所对应的时分双工 TDD频段是否相邻, 如果是, 则通知第二发送 单元执行自身功能;
所述第二发送单元, 用于接收来自所述第二确定单元的通知消息, 并在所述 TDD频段与所述 FDD频段内的信号发送方向一致的时间段 发送。
14、 根据权利要求 13 所述的装置, 其特征在于, 所述第二发送单 元进一步用于, 在所述 TDD频段与所述 FDD频段内的信号发送方向不 一致的时间段内, 在所述保护带内不进行任何信号的收发。
15、 根据权利要求 14 所述的装置, 其特征在于, 所述第二发送单 元包括:
第二接收子单元, 用于接收来自所述第二确定单元的通知消息, 并 在当所述 FDD频段为 FDD下行频段时, 通知第三发送子单元执行自身 功能, 当所述 FDD频段为 FDD上行频段时, 通知第四发送子单元执行 自身功能;
所述第三发送子单元, 用于接收来自所述第二接收子单元的通知消 息, 并在利用所述 TDD频段进行下行信号发送的时间段内, 同时利用 所述保护带进行下行信号发送, 在利用所述 TDD频段进行上行信号发 送的时间段内, 在所述保护带内不进行任何信号的收发;
所述第四发送子单元, 用于接收来自所述第二接收子单元的通知消 息, 并在利用所述 TDD频段进行上行信号发送的时间段内, 同时利用 所述保护带进行上行信号发送, 在利用所述 TDD频段进行下行信号发 送的时间段内, 在所述保护带内不进行任何信号的收发。
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| CN2008102254967A CN101730112B (zh) | 2008-11-03 | 2008-11-03 | 一种频段相邻时的信号发送方法和装置 |
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