WO2013071660A1 - Method and apparatus for macro diversity reception - Google Patents

Method and apparatus for macro diversity reception Download PDF

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Publication number
WO2013071660A1
WO2013071660A1 PCT/CN2011/083395 CN2011083395W WO2013071660A1 WO 2013071660 A1 WO2013071660 A1 WO 2013071660A1 CN 2011083395 W CN2011083395 W CN 2011083395W WO 2013071660 A1 WO2013071660 A1 WO 2013071660A1
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WIPO (PCT)
Prior art keywords
mobile terminal
signals
base station
search
macro diversity
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PCT/CN2011/083395
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French (fr)
Chinese (zh)
Inventor
丁杰伟
沈伟
蒲迎春
翟毅斌
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中兴通讯股份有限公司
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Publication of WO2013071660A1 publication Critical patent/WO2013071660A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity

Definitions

  • the present invention relates to the field of communications, and in particular to a macro diversity receiving method and apparatus.
  • Background Art Currently, widely used wireless communication systems include: Global System for Mobile (Global System for Mobile)
  • GSM Global System for Mobile Communications
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • CDMA Time Division Synchronous Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • Wimax Worldwide Interoperability for Microwave Access
  • LTE Long-Term Evolution
  • the mobile terminal can maintain communication with multiple cells at the same time, and the radio network controller initiates signaling to establish a radio link in each cell.
  • the mobile terminal is in a process of multiple cell soft handover or softer handover, and the uplink signal may be jointly received and combined by multiple cells to obtain macro diversity gain of multiple cells, but the premise is that the radio network controller notifies the base station to establish multiple radios. Link, the signaling process of this handover also needs a certain time process.
  • the macro diversity gain is not available during the handover but the handover signaling has not yet been completed.
  • the 3GPP protocol defines an uplink Cell su enhancement function, which uses a shared enhanced dedicated channel (Common E-Dch).
  • the channel is time-sharing shared to each mobile terminal that needs to communicate.
  • the short-term burst data transmission can use the channel, and the transmission process terminal has a large transmission power and a short duration.
  • the present invention provides a macro diversity receiving method and apparatus, to at least solve the problem that when the macro diversity gain is acquired in the related art, the switching time is too long and the switching process is strict, resulting in failure to receive the macro diversity gain.
  • a macro diversity receiving method including: a base station searching for signals of the same mobile terminal in a plurality of intra-frequency cells; and deactivating, by the base station, the mobile terminal searched in the plurality of intra-frequency cells
  • the signals are combined and the above demodulation results are combined.
  • the multiple intra-frequency cells include: a primary cell where the mobile terminal is located and an intra-frequency cell adjacent to the primary cell.
  • the base station combines the demodulation results using a maximum ratio combining method.
  • the method further includes: performing channel decoding on the combined demodulation result.
  • the searching, by the base station, the signals of the same mobile terminal in the multiple intra-frequency cells comprises: the base station periodically searching for signals of the same mobile terminal in the multiple intra-frequency cells.
  • the above macro diversity receiving method is applied to a cellular mobile communication system.
  • a macro diversity receiving apparatus including: a search module configured to search for signals of the same mobile terminal in a plurality of co-frequency cells; a demodulation combining module, configured to demodulate in multiple The signals of the mobile terminals searched in the same frequency cell and combine the demodulation results.
  • the search module further includes: a first search submodule configured to search for a signal of the mobile terminal in a primary cell where the mobile terminal is located; and a second search submodule configured to search for the mobile terminal in an intra-frequency cell adjacent to the primary cell signal of.
  • the demodulation combining module combines the demodulation results by a maximum ratio combining method.
  • the above macro diversity receiving apparatus further includes: a channel decoding module, configured to perform channel decoding on the combined demodulation result.
  • a method of searching for signals of the same mobile terminal in a plurality of intra-frequency cells and demodulating and merging the searched signals is adopted, and when the macro diversity gain is acquired in the related art, the switching time is too long and the handover is performed.
  • the requirements are stricter in the process, which makes it impossible to receive the macro diversity gain. In the case of no switching, the macro diversity gain can be easily received, which improves the system performance and improves the user experience.
  • FIG. 1 is a flowchart of a macro diversity receiving method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a macro diversity receiving method according to a preferred embodiment of the present invention
  • FIG. 3 is a preferred embodiment according to the present invention. 2 is a schematic diagram of a macro diversity receiving scenario
  • FIG. 4 is a block diagram showing a structure of a macro diversity receiving apparatus according to an embodiment of the present invention
  • FIG. 5 is a block diagram 2 of a macro diversity receiving apparatus according to an embodiment of the present invention
  • the macro diversity receiving method includes: Step S102: A base station searches for signals of the same mobile terminal in multiple intra-frequency cells; Step S104: The base station demodulates mobile terminals that are searched in multiple intra-frequency cells The signals are combined and the above demodulation results are combined.
  • the method for searching for signals of the same mobile terminal in multiple intra-frequency cells and demodulating and merging the searched signals solves the problem that the switching time is too long when the macro diversity gain is obtained in the related art.
  • the requirements of the handover process are strict, which makes it impossible to receive the macro diversity gain.
  • the multiple intra-frequency cells include: a primary cell where the mobile terminal is located and an intra-frequency cell adjacent to the primary cell.
  • the base station may actively search for the signal of the terminal UE on the antenna of the primary cell where the mobile terminal is located and the same frequency cell adjacent to the primary cell. Even in the absence of a handover, the base station can actively perform a signal search and acquire the macro diversity gain using the searched signals. Improve the performance of the system.
  • the base station may combine the demodulation results by a maximum ratio combining method.
  • the maximum ratio combining method is a method that can obtain better macro gain in the implementation process. By combining the maximum ratios, a better combining gain can be obtained.
  • step S104 the following processing may also be included: channel decoding is performed on the combined demodulation result. By combining the channels before channel decoding, the macro diversity gain can be better obtained.
  • the step S102 is further processed as follows: the base station periodically searches for signals of the same mobile terminal in multiple intra-frequency cells. During the implementation process, the base station may search for signals in multiple intra-frequency cells, and may not search for the signal during the first search. During the periodic search, the base station may make up for the first time that the signal is not searched.
  • the above macro diversity receiving method is applied to a cellular mobile communication system.
  • the preferred embodiment is directed to the problem that the cell edge performance is poor and the mobile terminal interferes with other neighboring cells in the wireless communication system.
  • the embodiment of the present invention provides an uplink autonomous macro diversity receiving method, as shown in FIG. 2 .
  • 2 is a flow chart of a macro diversity receiving method in accordance with a preferred embodiment of the present invention. The following processing is included: Step S202: The base station actively performs signal search of all intra-frequency neighboring cells on the terminal UE in communication.
  • the modulated signals are combined to obtain a macro diversity gain. If the signal of the terminal UE1 is not found on a neighboring co-frequency cell Ci, the cell Ci is not demodulated for the terminal UE1.
  • the base station controller does not use the slow and complex handover signaling procedure of the base station controller, and the base station autonomously searches for the uplink signals of the mobile terminals in the communication state of multiple neighboring cells. If signals are found in multiple cells at the same time, the signals of the cells are demodulated. Combining, the diversity gain is obtained, thereby reducing the transmission power of the mobile terminal and reducing the interference between cells.
  • FIG. 3 is a schematic diagram of a macro diversity reception scenario according to a preferred embodiment 2 of the present invention.
  • the base station A has three co-frequency cells Cl, C2, and C3. If the user terminal switches softer in these neighboring intervals, the macro diversity gain of the cell in which the handover is performed can be obtained.
  • the signals of many terminals can reach multiple cell antennas at the same time, not all of these terminals can obtain the macro diversity gain of all the above cells.
  • base station A has three co-frequency cells Cl, C2, and C3.
  • UE1 is in a softer handover state of CI and C2, and its signal can also be received by the antenna of cell C3, but according to the conventional technology, C3 Without the radio link of UE1, the signal on C3 will not be used for diversity reception.
  • the base station actively performs signal search of all intra-frequency neighboring cells for the terminal UE in communication. For example, in FIG. 3, for UE1, UE2, and UE3, signal search is performed on Cl, C2, and C3 at the same time, wherein the search may be performed periodically.
  • the second step all the cells that search for signals of each terminal UE are demodulated and combined to obtain a macro diversity gain.
  • signals are searched on all cells, and signals of all cells are demodulated and combined.
  • signals are received on cell C2 and cell C3, and are received on cell C1.
  • To the signal only the C2 and C3 cell signals are demodulated and combined to obtain macro diversity gain.
  • all UEs, whether or not they are in a softer handover state can search for signals on all cell antennas to obtain diversity gain. This improves system performance.
  • 4 is a block diagram showing the structure of a macro diversity receiving apparatus according to an embodiment of the present invention. As shown in FIG.
  • the macro diversity receiving apparatus includes: a search module 10 configured to search for signals of the same mobile terminal in a plurality of intra-frequency cells;
  • the demodulation combining module 20 is configured to demodulate signals of the mobile terminals searched in the plurality of intra-frequency cells and combine the demodulation results.
  • the search module 10 and the demodulation combining module 20 are connected.
  • the macro diversity receiving apparatus further includes: a channel decoding module 30 connected to the demodulation and combining module 20, configured to perform channel decoding on the combined demodulation result. As shown in FIG.
  • the search module 10 further includes: a first search sub-module 102, configured to search for a signal of the mobile terminal in a primary cell where the mobile terminal is located; a second search sub-module 104, and a first search sub-module 102. Connect, set to search for signals of the mobile terminal in the same frequency cell adjacent to the primary cell.
  • the demodulation combining module may combine the demodulation results by a maximum ratio combining method.
  • Preferred Embodiment 3 is a schematic diagram of a macro diversity receiving apparatus according to a preferred embodiment 3 of the present invention, as shown in FIG. As shown in FIG. 6, the apparatus includes: a primary cell signal search module 40, a neighbor cell signal search module 50, and a demodulation merge module 60.
  • the device has a primary cell signal search module 40 and a plurality of adjacent cell signal search modules 50. For example, if the terminal UE can search for 4 adjacent co-frequency cells to have their signals, then four adjacent cell signal search modules are allocated.
  • the demodulation combining module 60 is arranged to demodulate the searched signals and combine the demodulated signals.
  • the signal output to the demodulation combining module 60 is channel decoded to obtain a stronger macro diversity gain.
  • the primary cell signal search module 40 performs signal search in the primary cell
  • the neighbor cell signal search module 50 performs active on all other neighboring cells in the base station. Periodic signal search.
  • the demodulation and combining module 60 performs signal demodulation on the cell, and combines with other cell demodulation results, and sends the combined result to the subsequent module for channel decoding.
  • This method can be combined before channel decoding to obtain better macro diversity gain.
  • the preferred embodiment uses WCDMA as a preferred implementation. The flow of the above-described embodiment applied to the macro diversity receiving apparatus will be described with reference to Figs. 2, 3, and 6.
  • WCDMA base station multiple co-frequency cells are usually configured, and different regions and antennas are used to cover different regions, and these cells are also usually adjacent. When the user establishes communication, generally only a radio link is established in a cell with better signal quality.
  • the baseband processing subsystem in the base station only performs signal detection on the antenna allocation signal search module resources of the one cell. search for.
  • the signal detection search in the WCDMA system searches for the frame header position of the user multipath signal on the antenna data, or simply multipath search, and frame synchronization is the basis of signal reception.
  • other users in the same frequency neighboring area are also likely to have the signal of the user.
  • UE2 in FIG. 1 only establishes a radio link on cell C2, and the existing method performs multipath search only on the antenna of cell C2.
  • the base station controller establishes only one radio link of the cell to the UE2, that is, the radio link established with the cell C2
  • the base cell signal search module 40 and the neighbor cell signal search module 50 may perform the radio link.
  • a total of three search modules that is, one primary cell signal search module 40 and two adjacent cell signal search modules 50 are allocated, and multi-path search is simultaneously performed on the cells C1, C2, and C3.
  • Both the cell C1 and the cell C3 can receive the multipath signal acquisition frame synchronization of the UE2, and the UE2 signal is not received on the cell C1.
  • the demodulation combining module 60 demodulates and combines the signals of UE2 on the cells C2 and C3 according to the search result.
  • the signal combining can adopt the maximum ratio combining method, and a better combining gain can be obtained by this method.
  • the combined signal can be subsequently subjected to channel decoding processing.
  • UE1 even if it is already in two cell handover states, using the apparatus and method provided in this embodiment, the signals on the cell C3 can be additionally searched for demodulation and combining to obtain additional gain.
  • the base station can independently search for signals of the user channels in adjacent cells regardless of whether it is in the handover scenario, and use these signals if the signals can be searched.
  • the present invention can be used for macro diversity reception in a wireless communication system by searching signals of the same mobile terminal in a plurality of co-frequency cells, and demodulating and merging the searched signals so that there is no handover It can also easily receive macro diversity gain, improve system performance and improve user experience.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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

Abstract

Disclosed are a method and apparatus for macro diversity reception. The method comprises: a base station searches signals of the same mobile terminal in multi co-frequency cells; the base station demodulates the signals, of the mobile terminal, searched in the multi co-frequency cells and combines the demodulation results. In the present invention, the base station searches independently signals from co-frequency and adjacent cells and performs macro diversity combination, so that the base station can obtain macro diversity gain even in the circumstance that the terminal is not handed off, and furthermore, the system performance can be upgraded and the user experience can be improved.

Description

宏分集接收方法及装置 技术领域 本发明涉及通信领域, 具体而言, 涉及一种宏分集接收方法及装置。 背景技术 目前, 广泛应用的无线通信系统包括: 全球移动通信 (Global system for Mobile TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a macro diversity receiving method and apparatus. Background Art Currently, widely used wireless communication systems include: Global System for Mobile (Global System for Mobile)
Communication, 简称为 GSM), 宽带码分多址接入 (Wideband Code Division Multiple Access, 简称为 WCDMA), 码分多址接入 2000 (Code Division Multiple Access, 简称 为 CDMA2000), 时分同步码分多址接入 (Time Division-Synchronous Code Division Multiple Access, 简称为 TD-SCDMA), 微波接入全球互通 (Worldwide Interoperability for Microwave Access, 简称为 Wimax), 长期演进系统(Long-Term Evolution, 简称为 LTE)等。在上述无线通信系统的架构中, 网络覆盖由很多覆盖不同区域的小区(Cell) 组成。 移动终端在小区之间移动时, 需要进行小区切换, 按照协议, 是否需要切换由 移动终端测量各个小区下行信号质量来决定, 若需要切换, 则由无线网络控制器来发 起切换信令。 在软切换和更软切换过程中, 移动终端可以同时和多个小区保持通讯, 由无线网络控制器发起信令在每个小区建立一条无线链路。 移动终端处于多个小区软 切换或更软切换过程中, 其上行信号可以由多个小区共同接收合并, 获得多个小区的 宏分集增益, 但前提是无线网络控制器要通知基站建立多条无线链路, 这个切换的信 令过程也需要有一定的时间过程。 在进行切换但还没完成切换信令的过程中, 宏分集增益无法得到。 在还没有达到 切换门限但已经接近切换门限的情况下, 本来可以进行的宏分集增益也没能获得, 该 移动终端也会对其它小区产生不良干扰。 随着对无线通信系统更好更快的需求越来越强烈, 无线通信系统对无线资源的调 度使用节奏也更快, 相对缓慢复杂的切换信令流程已经难以跟上快节奏的通信过程。 比如在 WCDMA中, 3GPP协议定义了上行 Cell Fach增强功能, 采用了共享增强型专 用信道 (Common E-Dch)。 该信道分时共享给各个需要通讯的移动终端。 通常短时间 的突发数据传输可以使用该信道, 传输过程终端发射功率较大, 持续时间较短。 由于 持续时间短, 很难为这种共享信道设计切换过程, 得不到切换宏分集增益, 另外这种 突发业务本身需要的发射功率也较大, 这对其它邻区也造成了较大的干扰。 针对相关技术中获取宏分集增益时, 切换时间过长且切换过程中要求较严格, 导 致无法接收宏分集增益的问题, 目前尚未提出有效的解决方案。 发明内容 本发明提供了一种宏分集接收方法及装置, 以至少解决相关技术中获取宏分集增 益时, 切换时间过长且切换过程中要求较严格, 导致无法接收宏分集增益的问题。 根据本发明的一个方面, 提供了一种宏分集接收方法, 包括: 基站在多个同频小 区中搜索同一移动终端的信号; 基站解调在多个同频小区中搜索到的该移动终端的信 号并合并上述解调结果。 优选地, 上述多个同频小区包括: 移动终端所在的主小区以及与该主小区相邻的 同频小区。 优选地, 基站采用最大比值合并法合并解调结果。 优选地, 基站解调在多个同频小区中搜索到的该移动终端的信号并合并上述解调 结果之后, 还包括: 将合并后的解调结果进行信道译码。 优选地, 基站在多个同频小区中搜索同一移动终端的信号包括: 基站周期性地在 多个同频小区中搜索同一移动终端的信号。 优选地, 上述宏分集接收方法应用于蜂窝移动通信系统。 根据本发明的另一方面, 提供了一种宏分集接收装置, 包括: 搜索模块, 设置为 在多个同频小区中搜索同一移动终端的信号; 解调合并模块, 设置为解调在多个同频 小区中搜索到的移动终端的信号并合并解调结果。 优选地, 搜索模块还包括: 第一搜索子模块, 设置为在移动终端所在的主小区搜 索移动终端的信号; 第二搜索子模块, 设置为在与主小区相邻的同频小区搜索移动终 端的信号。 优选地, 解调合并模块采用最大比值合并法合并解调结果。 优选地, 上述宏分集接收装置还包括: 信道译码模块, 设置为将合并后的解调结 果进行信道译码。 通过本发明, 采用在多个同频小区中搜索同一移动终端的信号, 并对搜索到的信 号进行解调和合并的方法, 解决了相关技术中获取宏分集增益时, 切换时间过长且切 换过程中要求较严格, 导致无法接收宏分集增益的问题, 进而在没有切换的情况下, 也可以轻松的接收宏分集增益, 提升了系统性能, 提高了用户体验。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中: 图 1是根据本发明实施例的宏分集接收方法的流程图; 图 2是根据本发明优选实施例一的宏分集接收方法的流程图; 图 3是根据本发明优选实施例二的宏分集接收场景的示意图; 图 4是根据本发明实施例的宏分集接收装置的结构框图一; 图 5是根据本发明实施例的宏分集接收装置的结构框图二; 以及 图 6是根据本发明优选实施例三的宏分集接收装置的示意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 针对相关技术中获取宏分集增益时, 切换时间过长且切换过程中要求较严格, 导 致无法接收宏分集增益的问题, 本发明实施例提供了一种宏分集接收方法。 图 1是根 据本发明实施例的宏分集接收方法的流程图。 如图 1所示, 该宏分集接收方法包括: 步骤 S102, 基站在多个同频小区中搜索同一移动终端的信号; 步骤 S104,基站解调在多个同频小区中搜索到的移动终端的信号并合并上述解调 结果。 通过上述实施例, 采用在多个同频小区中搜索同一移动终端的信号, 并对搜索到 的信号进行解调和合并的方法, 解决了相关技术中获取宏分集增益时, 切换时间过长 且切换过程中要求较严格, 导致无法接收宏分集增益的问题, 进而在没有切换的情况 下, 也可以轻松的接收宏分集增益, 提升了系统性能, 提高了用户体验。 其中, 上述多个同频小区包括: 移动终端所在的主小区以及与该主小区相邻的同 频小区。 在实施过程中, 对于基站中任一正处于通信状态的移动终端, 基站可以主动 搜索该移动终端所处的主小区和该主小区相邻的各同频小区的天线上该终端 UE的信 号。 即使在没有切换的情况下, 基站也可以主动进行信号搜索, 并利用搜索到的信号 获取宏分集增益。 提高了系统的性能。 在步骤 S104中,基站可以采用最大比值合并法合并解调结果。最大比值合并法是 在实施过程中可以获得较优宏增益的方法, 通过运用最大比值合的合并, 可以获得更 好的合并增益。 在步骤 S104之后, 还可以包括以下处理: 将合并后的解调结果进行信道译码。在 信道译码之前就对信道进行合并, 可以更好的获得宏分集增益。 优选地, 步骤 S102还可以做如下处理, 包括: 基站周期性地在多个同频小区中搜 索同一移动终端的信号。 在实施过程中, 基站可以对在多个同频小区中搜索信号, 可 能在第一次搜索时没有搜索到该信号, 进行周期性搜索的过程中, 可以弥补第一次未 搜索到该信号的缺陷, 可以再次利用从前未搜索到的信号, 通过周期性的搜索, 可以 获得跟好的宏分集增益。 优选地, 上述宏分集接收方法应用于蜂窝移动通信系统。 优选实施例一 针对无线通信系统中小区边缘性能较差和移动终端对其它邻近小区的干扰问题, 本发明实施例提供一种上行自主宏分集接收方法, 如图 2所示。 图 2是根据本发明优 选实施例一的宏分集接收方法的流程图。 包括以下处理: 步骤 S202, 基站对通信中的终端 UE主动进行所有同频相邻小区的信号搜索。 对 于在基站 A中任一小区(例如小区 C1 )中正处于通信状态的任一终端(例如终端 UE1 ), 基站主动周期性搜索该基站 A 中和该小区 C1 相邻的同频各个小区 (例如: C2,C3,...,Cn) 的天线上该终端 UE1的信号。 步骤 S204, 基站对每个终端 UE的所有搜索到信号的小区, 进行解调合并, 获得 宏分集增益。 如果在该小区 (C1 ) 的某个相邻同频小区 (例如 Ci, i=2,3,...,n)上搜到 该终端 UE1的信号, 则对小区 Ci上终端 UE1的信号进行解调, 并与小区 C1中的解 调信号进行合并, 得到宏分集增益。 如果在某个相邻同频小区 Ci上搜不到终端 UE1 的信号, 则对小区 Ci不用对终端 UE1进行解调。 本实施不用基站控制器缓慢复杂的切换信令流程, 基站自主搜索多个邻近小区的 处于通信状态的移动终端上行信号, 如果同时在多个小区中搜到信号, 就对这些小区 的信号进行解调合并, 得到分集增益, 从而降低移动终端发射功率, 减少小区之间的 干扰。 优选实施例二 图 3是根据本发明优选实施例二的宏分集接收场景的示意图。 同一个基站内, 通常有多个同频小区互为邻区, 如图 3所示, 图中基站 A有三个 同频小区 Cl、 C2、 C3。 如果用户终端在这些邻区间更软切换, 可以得到切换所在小 区的宏分集增益。 然而实际实施过程中宏, 许多终端的信号虽然可以同时到达多个小 区天线, 但并不是所有这些终端都能得到上述所有小区的宏分集增益。 图 3中用粗线 表示 UE和小区天线之间的信号较强, 并已经由基站控制器通知基站建立了该 UE在 该小区之间的无线链路, 细线表示该 UE有信号到达该小区, 但没有建立无线链路。 如图 3所示, 基站 A有 3个同频小区 Cl、 C2、 C3, UE1处于 CI和 C2的更软切 换状态, 其信号也能被小区 C3的天线接收到, 但按照传统技术, C3上没有建立 UE1 的无线链路, 就不会去利用 C3上的信号进行分集接收。 UE2处于 C2小区中, 没有进 行更软切换, 但 UE2的信号可以到达小区 C3, 按传统技术也没有得到 C3的宏分集增 益。 图中 UE3的信号只有在小区 C3上检测到。 因此无法获得宏分集增益 在本实施例实施的过程中, 第一步, 基站对通信中的终端 UE主动进行所有同频 相邻小区的信号搜索。 例如在图 3 中, 对 UE1, UE2, UE3 , 都同时在 Cl, C2, C3 上进行信号搜索, 其中, 该搜索可以是周期性执行的。 第二步, 对每个终端 UE的所 有搜索到信号的小区, 进行解调合并, 获得宏分集增益。 例如图 3中, 对于 UE1, 在 所有小区上都会搜索到信号, 则对所有小区的信号进行解调并合并; 对于 UE2, 会在 小区 C2和小区 C3上收到信号, 在小区 C1上收不到信号, 则只对 C2和 C3小区信号 进行解调合并, 获得宏分集增益。 对于 UE3, 只在小区 C3收到信号, 则只解调 C3上 的信号。 继而, 如果采用本实施例的方法, 则对所有 UE, 无论其是否处于更软切换状 态, 都可以在所有小区天线上搜索信号, 获得分集增益。 从而提升了系统性能。 图 4是根据本发明实施例的宏分集接收装置的结构框图一。 如图 4所示, 该宏分 集接收装置包括: 搜索模块 10, 设置为在多个同频小区中搜索同一移动终端的信号; 解调合并模块 20, 设置为解调在多个同频小区中搜索到的移动终端的信号并合并解调 结果。 搜索模块 10和解调合并模块 20连接。 优选地, 上述宏分集接收装置还包括: 信道译码模块 30, 与解调合并模块 20连 接, 设置为将合并后的解调结果进行信道译码。 如图 5所示, 优选地, 搜索模块 10还包括: 第一搜索子模块 102, 设置为在移动 终端所在的主小区搜索移动终端的信号; 第二搜索子模块 104, 与第一搜索子模块 102 连接, 设置为在与主小区相邻的同频小区搜索移动终端的信号。 优选地, 解调合并模块可以采用最大比值合并法合并解调结果。 优选实施例三 如图 6所示, 是根据本发明优选实施例三的宏分集接收装置的示意图。 如图 6所 示, 该装置包括: 主小区信号搜索模块 40、 相邻小区信号搜索模块 50以及解调合并 模块 60。 该装置有一个主小区信号搜索模块 40, 多个相邻小区信号搜索模块 50。 例 如终端 UE能搜索到 4个相邻同频小区存在其信号, 则分配四个相邻小区信号搜索模 块。解调合并模块 60设置为将搜索到的信号进行解调, 并合并解调后的信号。将输出 解调合并模块 60的信号进行信道译码, 以获得较强的宏分集增益。 在实施过程中, 对于通信中的 UE, 无论是否处于更软切换状态, 主小区信号搜索 模块 40在主小区进行信号搜索, 相邻小区信号搜索模块 50对基站中其它所有相邻小 区进行主动的周期性信号搜索。对于搜索到信号的小区,解调合并模块 60对该小区进 行信号解调, 并和其它小区解调结果合并, 并把合并结果送往后续模块进行信道译码。 这种方法能在信道译码之前进行合并, 可以获得较好的宏分集增益。 本优选实施例以 WCDMA作为优选实施过程。 结合图 2、 图 3、 图 6对上述应用 于宏分集接收装置的实施例的流程进行描述。 在一个 WCDMA的基站中, 通常配置了多个同频小区, 用不同位置和朝向的天线 覆盖不同的区域, 这些小区也通常是相邻的。 当用户建立通信时, 一般只在信号质量 较好的一个小区建立无线链路, 按照现有的技术, 基站中的基带处理子系统只会对这 一个小区的天线分配信号搜索模块资源进行信号检测搜索。 WCDMA系统中的信号检 测搜索就是在天线数据上搜索该用户多径信号的帧头位置, 或简称多径搜索, 帧同步 是信号接收的基础。 在实际实施过程中, 其他同频邻区上也很可能有该用户的信号。 例如图 1 中的 UE2,只在小区 C2上建立了无线链路,现有方法只在小区 C2的天线上进行多径搜索。 在本实施例中, 尽管基站控制器对 UE2只建立了一个小区的无线链路, 即与小区 C2 建立的无线链路, 也可以通过主小区信号搜索模块 40、 相邻小区信号搜索模块 50进 行搜索, 一共会分配 3个搜索模块, 即一个主小区信号搜索模块 40和两个相邻小区信 号搜索模块 50, 对小区 Cl、 C2、 C3同时进行多径搜索。在小区 C1和小区 C3上都能 收到 UE2的多径信号取得帧同步,在小区 C1上收不到 UE2的信号。解调合并模块 60 根据搜索结果对小区 C2和 C3上 UE2的信号都进行解调, 并进行合并。 此处信号合 并可以采用最大比值合并方法, 采用此方法可以获得较好的合并增益。 合并后的信号 后续可以进行信道译码处理。 例如 UE1, 即使已经处于两个小区切换状态, 利用本实 施例提供的装置及方法, 也可以额外搜索到小区 C3 上的信号进行解调合并, 获得额 外增益。 从以上的描述中, 可以看出, 本发明实现了如下技术效果: 无论是否处于切换的场景, 都可以由基站自主搜索这些用户信道在相邻小区的信 号, 如果能搜索到信号就利用这些信号进行宏分集合并, 解决了相关技术中获取宏分 集增益时, 切换时间过长且切换过程中要求较严格, 导致无法接收宏分集增益的问题, 提高这些用户信道的接收性能, 从而降低移动终端所需的发射功率, 减少小区之间的 干扰。 进而在没有切换的情况下, 也可以轻松的接收宏分集增益, 提升了系统性能, 提高了用户体验。 工业实用性 本发明可用于无线通信系统中宏分集的接收, 通过在多个同频小区中搜索同一移 动终端的信号, 并对搜索到的信号进行解调和合并, 使得在没有切换的情况下, 也可 以轻松的接收宏分集增益, 提升了系统性能, 提高了用户体验。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 并且在某些情况下, 可以以不同于此处 的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 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。 Communication, abbreviated as GSM), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Synchronous Code Division Multiple Access (CDMA) Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), Worldwide Interoperability for Microwave Access (Wimax), Long-Term Evolution (LTE), etc. . In the architecture of the above wireless communication system, the network coverage is composed of many cells covering different areas. When the mobile terminal moves between cells, it needs to perform cell handover. According to the protocol, whether the handover needs to be measured by the mobile terminal to measure the downlink signal quality of each cell is determined. If handover is required, the radio network controller initiates handover signaling. In the soft handover and softer handover procedures, the mobile terminal can maintain communication with multiple cells at the same time, and the radio network controller initiates signaling to establish a radio link in each cell. The mobile terminal is in a process of multiple cell soft handover or softer handover, and the uplink signal may be jointly received and combined by multiple cells to obtain macro diversity gain of multiple cells, but the premise is that the radio network controller notifies the base station to establish multiple radios. Link, the signaling process of this handover also needs a certain time process. The macro diversity gain is not available during the handover but the handover signaling has not yet been completed. In the case where the handover threshold has not been reached but the handover threshold has been approached, the originally available macro diversity gain is also not obtained, and the mobile terminal may also cause undesirable interference to other cells. As the demand for better and faster wireless communication systems becomes stronger and stronger, the wireless communication system has a faster pace of scheduling and scheduling of wireless resources, and the relatively slow and complex handover signaling process has been difficult to keep up with the fast-paced communication process. For example, in WCDMA, the 3GPP protocol defines an uplink Cell Fach enhancement function, which uses a shared enhanced dedicated channel (Common E-Dch). The channel is time-sharing shared to each mobile terminal that needs to communicate. Usually, the short-term burst data transmission can use the channel, and the transmission process terminal has a large transmission power and a short duration. Due to the short duration, it is difficult to design a handover process for such a shared channel, and the macro diversity gain cannot be switched. In addition, the burst power itself requires a large transmission power, which also causes a large interference to other neighboring cells. . When the macro diversity gain is obtained in the related art, the switching time is too long and the switching process is strict, which results in the inability to receive the macro diversity gain. Currently, no effective solution has been proposed. SUMMARY OF THE INVENTION The present invention provides a macro diversity receiving method and apparatus, to at least solve the problem that when the macro diversity gain is acquired in the related art, the switching time is too long and the switching process is strict, resulting in failure to receive the macro diversity gain. According to an aspect of the present invention, a macro diversity receiving method is provided, including: a base station searching for signals of the same mobile terminal in a plurality of intra-frequency cells; and deactivating, by the base station, the mobile terminal searched in the plurality of intra-frequency cells The signals are combined and the above demodulation results are combined. Preferably, the multiple intra-frequency cells include: a primary cell where the mobile terminal is located and an intra-frequency cell adjacent to the primary cell. Preferably, the base station combines the demodulation results using a maximum ratio combining method. Preferably, after the base station demodulates the signals of the mobile terminal searched in the plurality of intra-frequency cells and combines the demodulation results, the method further includes: performing channel decoding on the combined demodulation result. Preferably, the searching, by the base station, the signals of the same mobile terminal in the multiple intra-frequency cells comprises: the base station periodically searching for signals of the same mobile terminal in the multiple intra-frequency cells. Preferably, the above macro diversity receiving method is applied to a cellular mobile communication system. According to another aspect of the present invention, a macro diversity receiving apparatus is provided, including: a search module configured to search for signals of the same mobile terminal in a plurality of co-frequency cells; a demodulation combining module, configured to demodulate in multiple The signals of the mobile terminals searched in the same frequency cell and combine the demodulation results. Preferably, the search module further includes: a first search submodule configured to search for a signal of the mobile terminal in a primary cell where the mobile terminal is located; and a second search submodule configured to search for the mobile terminal in an intra-frequency cell adjacent to the primary cell signal of. Preferably, the demodulation combining module combines the demodulation results by a maximum ratio combining method. Preferably, the above macro diversity receiving apparatus further includes: a channel decoding module, configured to perform channel decoding on the combined demodulation result. According to the present invention, a method of searching for signals of the same mobile terminal in a plurality of intra-frequency cells and demodulating and merging the searched signals is adopted, and when the macro diversity gain is acquired in the related art, the switching time is too long and the handover is performed. The requirements are stricter in the process, which makes it impossible to receive the macro diversity gain. In the case of no switching, the macro diversity gain can be easily received, which improves the system performance and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a flowchart of a macro diversity receiving method according to an embodiment of the present invention; FIG. 2 is a flowchart of a macro diversity receiving method according to a preferred embodiment of the present invention; FIG. 3 is a preferred embodiment according to the present invention. 2 is a schematic diagram of a macro diversity receiving scenario; FIG. 4 is a block diagram showing a structure of a macro diversity receiving apparatus according to an embodiment of the present invention; FIG. 5 is a block diagram 2 of a macro diversity receiving apparatus according to an embodiment of the present invention; A schematic diagram of a macro diversity receiving apparatus of a preferred embodiment 3 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. When the macro diversity gain is obtained in the related art, the switching time is too long and the switching process is strict, which may result in the inability to receive the macro diversity gain. The embodiment of the present invention provides a macro diversity receiving method. 1 is a flow chart of a macro diversity receiving method according to an embodiment of the present invention. As shown in FIG. 1, the macro diversity receiving method includes: Step S102: A base station searches for signals of the same mobile terminal in multiple intra-frequency cells; Step S104: The base station demodulates mobile terminals that are searched in multiple intra-frequency cells The signals are combined and the above demodulation results are combined. According to the foregoing embodiment, the method for searching for signals of the same mobile terminal in multiple intra-frequency cells and demodulating and merging the searched signals solves the problem that the switching time is too long when the macro diversity gain is obtained in the related art. Moreover, the requirements of the handover process are strict, which makes it impossible to receive the macro diversity gain. In the case of no handover, the macro diversity gain can be easily received, the system performance is improved, and the user experience is improved. The multiple intra-frequency cells include: a primary cell where the mobile terminal is located and an intra-frequency cell adjacent to the primary cell. In the implementation process, for any mobile terminal in the communication state in the base station, the base station may actively search for the signal of the terminal UE on the antenna of the primary cell where the mobile terminal is located and the same frequency cell adjacent to the primary cell. Even in the absence of a handover, the base station can actively perform a signal search and acquire the macro diversity gain using the searched signals. Improve the performance of the system. In step S104, the base station may combine the demodulation results by a maximum ratio combining method. The maximum ratio combining method is a method that can obtain better macro gain in the implementation process. By combining the maximum ratios, a better combining gain can be obtained. After step S104, the following processing may also be included: channel decoding is performed on the combined demodulation result. By combining the channels before channel decoding, the macro diversity gain can be better obtained. Preferably, the step S102 is further processed as follows: the base station periodically searches for signals of the same mobile terminal in multiple intra-frequency cells. During the implementation process, the base station may search for signals in multiple intra-frequency cells, and may not search for the signal during the first search. During the periodic search, the base station may make up for the first time that the signal is not searched. Defects, you can use the previously unsearched signal again, through the periodic search, you can get the good macro diversity gain. Preferably, the above macro diversity receiving method is applied to a cellular mobile communication system. The preferred embodiment is directed to the problem that the cell edge performance is poor and the mobile terminal interferes with other neighboring cells in the wireless communication system. The embodiment of the present invention provides an uplink autonomous macro diversity receiving method, as shown in FIG. 2 . 2 is a flow chart of a macro diversity receiving method in accordance with a preferred embodiment of the present invention. The following processing is included: Step S202: The base station actively performs signal search of all intra-frequency neighboring cells on the terminal UE in communication. For any terminal that is in communication state (for example, terminal UE1) in any of the cells in the base station A (for example, the cell C1), the base station actively searches for the same-frequency cells in the base station A and adjacent to the cell C1 (for example: The signal of the terminal UE1 on the antenna of C2, C3, ..., Cn). Step S204: The base station demodulates and combines all the cells that search for the signal of each terminal UE to obtain a macro diversity gain. If the signal of the terminal UE1 is found on a neighboring intra-frequency cell (eg, Ci, i=2, 3, . . . , n) of the cell (C1), the signal of the terminal UE1 on the cell Ci is performed. Demodulation, and the solution in cell C1 The modulated signals are combined to obtain a macro diversity gain. If the signal of the terminal UE1 is not found on a neighboring co-frequency cell Ci, the cell Ci is not demodulated for the terminal UE1. In this implementation, the base station controller does not use the slow and complex handover signaling procedure of the base station controller, and the base station autonomously searches for the uplink signals of the mobile terminals in the communication state of multiple neighboring cells. If signals are found in multiple cells at the same time, the signals of the cells are demodulated. Combining, the diversity gain is obtained, thereby reducing the transmission power of the mobile terminal and reducing the interference between cells. Preferred Embodiment 2 FIG. 3 is a schematic diagram of a macro diversity reception scenario according to a preferred embodiment 2 of the present invention. In the same base station, there are usually multiple co-frequency cells in the neighboring cell. As shown in FIG. 3, the base station A has three co-frequency cells Cl, C2, and C3. If the user terminal switches softer in these neighboring intervals, the macro diversity gain of the cell in which the handover is performed can be obtained. However, in the actual implementation process, although the signals of many terminals can reach multiple cell antennas at the same time, not all of these terminals can obtain the macro diversity gain of all the above cells. The thick line between FIG. 3 indicates that the signal between the UE and the cell antenna is strong, and the base station controller has notified the base station that the radio link between the UE is established, and the thin line indicates that the UE has a signal to reach the cell. , but no wireless link is established. As shown in Figure 3, base station A has three co-frequency cells Cl, C2, and C3. UE1 is in a softer handover state of CI and C2, and its signal can also be received by the antenna of cell C3, but according to the conventional technology, C3 Without the radio link of UE1, the signal on C3 will not be used for diversity reception. UE2 is in the C2 cell, and no softer handover is performed, but the signal of UE2 can reach the cell C3, and the macro diversity gain of C3 is not obtained according to the conventional technique. The signal of UE3 in the figure is only detected on cell C3. Therefore, the macro diversity gain cannot be obtained. In the process of implementing this embodiment, in the first step, the base station actively performs signal search of all intra-frequency neighboring cells for the terminal UE in communication. For example, in FIG. 3, for UE1, UE2, and UE3, signal search is performed on Cl, C2, and C3 at the same time, wherein the search may be performed periodically. In the second step, all the cells that search for signals of each terminal UE are demodulated and combined to obtain a macro diversity gain. For example, in FIG. 3, for UE1, signals are searched on all cells, and signals of all cells are demodulated and combined. For UE2, signals are received on cell C2 and cell C3, and are received on cell C1. To the signal, only the C2 and C3 cell signals are demodulated and combined to obtain macro diversity gain. For UE3, only the signal is received at cell C3, and only the signal on C3 is demodulated. Then, if the method of the present embodiment is employed, all UEs, whether or not they are in a softer handover state, can search for signals on all cell antennas to obtain diversity gain. This improves system performance. 4 is a block diagram showing the structure of a macro diversity receiving apparatus according to an embodiment of the present invention. As shown in FIG. 4, the macro diversity receiving apparatus includes: a search module 10 configured to search for signals of the same mobile terminal in a plurality of intra-frequency cells; The demodulation combining module 20 is configured to demodulate signals of the mobile terminals searched in the plurality of intra-frequency cells and combine the demodulation results. The search module 10 and the demodulation combining module 20 are connected. Preferably, the macro diversity receiving apparatus further includes: a channel decoding module 30 connected to the demodulation and combining module 20, configured to perform channel decoding on the combined demodulation result. As shown in FIG. 5, the search module 10 further includes: a first search sub-module 102, configured to search for a signal of the mobile terminal in a primary cell where the mobile terminal is located; a second search sub-module 104, and a first search sub-module 102. Connect, set to search for signals of the mobile terminal in the same frequency cell adjacent to the primary cell. Preferably, the demodulation combining module may combine the demodulation results by a maximum ratio combining method. Preferred Embodiment 3 is a schematic diagram of a macro diversity receiving apparatus according to a preferred embodiment 3 of the present invention, as shown in FIG. As shown in FIG. 6, the apparatus includes: a primary cell signal search module 40, a neighbor cell signal search module 50, and a demodulation merge module 60. The device has a primary cell signal search module 40 and a plurality of adjacent cell signal search modules 50. For example, if the terminal UE can search for 4 adjacent co-frequency cells to have their signals, then four adjacent cell signal search modules are allocated. The demodulation combining module 60 is arranged to demodulate the searched signals and combine the demodulated signals. The signal output to the demodulation combining module 60 is channel decoded to obtain a stronger macro diversity gain. In the implementation process, for the UE in communication, whether the UE is in a softer handover state, the primary cell signal search module 40 performs signal search in the primary cell, and the neighbor cell signal search module 50 performs active on all other neighboring cells in the base station. Periodic signal search. For the cell that searches for the signal, the demodulation and combining module 60 performs signal demodulation on the cell, and combines with other cell demodulation results, and sends the combined result to the subsequent module for channel decoding. This method can be combined before channel decoding to obtain better macro diversity gain. The preferred embodiment uses WCDMA as a preferred implementation. The flow of the above-described embodiment applied to the macro diversity receiving apparatus will be described with reference to Figs. 2, 3, and 6. In a WCDMA base station, multiple co-frequency cells are usually configured, and different regions and antennas are used to cover different regions, and these cells are also usually adjacent. When the user establishes communication, generally only a radio link is established in a cell with better signal quality. According to the existing technology, the baseband processing subsystem in the base station only performs signal detection on the antenna allocation signal search module resources of the one cell. search for. The signal detection search in the WCDMA system searches for the frame header position of the user multipath signal on the antenna data, or simply multipath search, and frame synchronization is the basis of signal reception. In the actual implementation process, other users in the same frequency neighboring area are also likely to have the signal of the user. For example, UE2 in FIG. 1 only establishes a radio link on cell C2, and the existing method performs multipath search only on the antenna of cell C2. In this embodiment, although the base station controller establishes only one radio link of the cell to the UE2, that is, the radio link established with the cell C2, the base cell signal search module 40 and the neighbor cell signal search module 50 may perform the radio link. In the search, a total of three search modules, that is, one primary cell signal search module 40 and two adjacent cell signal search modules 50 are allocated, and multi-path search is simultaneously performed on the cells C1, C2, and C3. Both the cell C1 and the cell C3 can receive the multipath signal acquisition frame synchronization of the UE2, and the UE2 signal is not received on the cell C1. The demodulation combining module 60 demodulates and combines the signals of UE2 on the cells C2 and C3 according to the search result. Here, the signal combining can adopt the maximum ratio combining method, and a better combining gain can be obtained by this method. The combined signal can be subsequently subjected to channel decoding processing. For example, UE1, even if it is already in two cell handover states, using the apparatus and method provided in this embodiment, the signals on the cell C3 can be additionally searched for demodulation and combining to obtain additional gain. From the above description, it can be seen that the present invention achieves the following technical effects: the base station can independently search for signals of the user channels in adjacent cells regardless of whether it is in the handover scenario, and use these signals if the signals can be searched. Performing macro-diversity aggregation solves the problem that when the macro-diversity gain is obtained in the related art, the switching time is too long and the switching process is strict, resulting in the inability to receive the macro diversity gain, improving the receiving performance of these user channels, thereby reducing the mobile terminal The required transmit power reduces interference between cells. In addition, without switching, the macro diversity gain can be easily received, which improves system performance and improves user experience. Industrial Applicability The present invention can be used for macro diversity reception in a wireless communication system by searching signals of the same mobile terminal in a plurality of co-frequency cells, and demodulating and merging the searched signals so that there is no handover It can also easily receive macro diversity gain, improve system performance and improve user experience. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权 利 要 求 书 Claim
1. 一种宏分集接收方法, 包括: A macro diversity receiving method, comprising:
基站在多个同频小区中搜索同一移动终端的信号;  The base station searches for signals of the same mobile terminal in multiple intra-frequency cells;
所述基站解调在所述多个同频小区中搜索到的所述移动终端的信号并合并 所述解调结果。  The base station demodulates signals of the mobile terminal searched in the plurality of intra-frequency cells and combines the demodulation results.
2. 根据权利要求 1所述的方法, 其中, 所述多个同频小区包括: 所述移动终端所 在的主小区以及与所述主小区相邻的同频小区。 The method according to claim 1, wherein the multiple intra-frequency cells comprise: a primary cell in which the mobile terminal is located and an intra-frequency cell adjacent to the primary cell.
3. 根据权利要求 1或 2所述的方法, 其中, 所述基站采用最大比值合并法合并所 述解调结果。 The method according to claim 1 or 2, wherein the base station combines the demodulation results by a maximum ratio combining method.
4. 根据权利要求 3所述的方法, 其中, 所述基站解调在所述多个同频小区中搜索 到的所述移动终端的信号并合并所述解调结果之后, 还包括: 将合并后的所述 解调结果进行信道译码。 The method according to claim 3, wherein, after the base station demodulates the signal of the mobile terminal searched in the multiple co-frequency cells and combines the demodulation results, the method further includes: combining The subsequent demodulation result is subjected to channel decoding.
5. 根据权利要求 4所述的方法, 其中, 基站在多个同频小区中搜索同一移动终端 的信号包括: The method according to claim 4, wherein the searching, by the base station, the signals of the same mobile terminal in the multiple intra-frequency cells comprises:
所述基站周期性地在所述多个同频小区中搜索同一移动终端的信号。  The base station periodically searches for signals of the same mobile terminal in the plurality of intra-frequency cells.
6. 根据权利要求 1所述的方法, 其中, 所述宏分集接收方法应用于蜂窝移动通信 系统。 The method according to claim 1, wherein the macro diversity receiving method is applied to a cellular mobile communication system.
7. 一种宏分集接收装置, 包括: 7. A macro diversity receiving device, comprising:
搜索模块, 设置为在多个同频小区中搜索同一移动终端的信号; 解调合并模块, 设置为解调在所述多个同频小区中搜索到的所述移动终端 的信号并合并所述解调结果。  a search module, configured to search for signals of the same mobile terminal in a plurality of co-frequency cells; a demodulation combining module configured to demodulate signals of the mobile terminal searched in the plurality of co-frequency cells and merge the signals Demodulation results.
8. 根据权利要求 7所述的装置, 其中, 所述搜索模块还包括: 第一搜索子模块, 设置为在所述移动终端所在的主小区搜索所述移动终端 的信号; The device according to claim 7, wherein the search module further comprises: a first search submodule, configured to search for a signal of the mobile terminal in a primary cell where the mobile terminal is located;
第二搜索子模块, 设置为在与所述主小区相邻的同频小区搜索所述移动终 端的信号。 And a second search submodule, configured to search for a signal of the mobile terminal in a same frequency cell adjacent to the primary cell.
9. 根据权利要求 7或 8所述的装置, 其中, 所述解调合并模块采用最大比值合并 法合并所述解调结果。 9. The apparatus according to claim 7 or 8, wherein the demodulation combining module combines the demodulation results by a maximum ratio combining method.
10. 根据权利要求 9所述的装置, 其中, 所述宏分集接收装置还包括:  The device according to claim 9, wherein the macro diversity receiving device further comprises:
信道译码模块, 设置为将合并后的所述解调结果进行信道译码。  The channel decoding module is configured to perform channel decoding on the combined demodulation result.
PCT/CN2011/083395 2011-11-16 2011-12-02 Method and apparatus for macro diversity reception WO2013071660A1 (en)

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