CN1464653A - Method for setting upgoing shared channel in communication system - Google Patents

Method for setting upgoing shared channel in communication system Download PDF

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CN1464653A
CN1464653A CN 02112117 CN02112117A CN1464653A CN 1464653 A CN1464653 A CN 1464653A CN 02112117 CN02112117 CN 02112117 CN 02112117 A CN02112117 A CN 02112117A CN 1464653 A CN1464653 A CN 1464653A
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uplink
usch
communication system
shared channel
ue
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CN1275398C (en
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陈德
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华为技术有限公司
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Abstract

The invention discloses a process for initializing uplink shared communication channel in the communication system. In the time division duplex TDD communication system of the asymmetric grouping service, the uplink and downlink resources usually use asymmetric design in which more resources are allocated to downlinks, and uplink resources are in short supply. The process provided in the invention makes full use of the limited uplink resources by setting uplink shared channel in the communication system, thus providing uplink data, physical layer signaling and high layer signaling service fora plurality of mobile terminal UEs having relative small uplink traffic volume.

Description

一种通信系统中上行共享信道的设置方法 A communication system uplink shared channel setting method

技术领域 FIELD

本发明涉及第三代移动通信系统3G增强技术,蜂窝高速分组接入技术。 The present invention relates to a third generation mobile communication systems enhanced 3G technology, High Speed ​​Packet Access cellular technology. 尤其针对非对称分组业务的TDD系统。 In particular, the packet service for asymmetric TDD system.

背景技术 Background technique

在服务于非对称数据业务的TDD通信系统中,一般来说,为了更好地提供下行高速业务,下行时间资源分配较多,用于上行传输的资源比较少。 In serving asymmetric data traffic TDD communication system, in general, in order to provide better high speed downlink traffic, the downlink resource allocation time more, fewer resources for uplink transmission. 而在分配的较少的上行传输时间段内,需要提供本小区所有用户设备UE上行的用户数据、高层信令和物理层信令。 In less uplink transmission allocation period, the user needs to provide all the data in this cell uplink user equipment UE, the high layer signaling and physical layer signaling. 对于WWW浏览和FTP等业务,UE大部分时间不需发送上行数据。 For the WWW browser, FTP and other services, UE sends uplink data without most of the time. 即使有上行数据发送,发送数据量也非常小。 Even if there is uplink data transmission, data transmission amount is very small. 如果系统为每一个激活状态UE分配专用信道,则会大大降低资源利用率,进而造成上行发送瓶颈。 If the active state for each UE is allocated a dedicated channel, which will greatly reduce the resource utilization, thereby causing a bottleneck uplink transmission.

如果采用随机接入信道RACH方式发送上行数据,则每发送一个数据包都要进行如下三个步骤:1)UE上行导频信道(UpPTS)的前导发送请求,2)无线因特网基站(WIB)通过下行快速物理接入信道(FPACH)下发指示,3)UE上行快速物理接入信道(PRACH)发送消息。 If a random access channel RACH uplink data transmission mode, then each transmits a data packet should be carried out in three steps as follows: 1) UE channel uplink pilot (UpPTS) preamble transmission request, 2) Internet radio station (WIB) by issued indicating the downlink fast physical access channel (FPACH), 3) UE uplink fast physical access channel (PRACH) message is sent.

在一次上行发送多个数据包时,需要多次进行前两步,即UpPTS和FPACH发送,开销较大。 When a plurality of uplink transmission packets need to be many times the first two steps, i.e. FPACH and UpPTS transmission overhead is large. 而且,随机接入通常还需要考虑到UE之间的冲突。 Furthermore, random access is usually also need to consider collision between the UE. 在RACH既传高层信令,又传用户数据的设计,相对于仅仅传输高层信令消息的设计,冲突会明显增加。 In both RACH transmission layer signaling and user data transmission design, the only transport layer signaling messages with respect to the design, the conflict will be significantly increased. 图1为一种蜂窝高速分组接入技术CHPA的物理层子帧Subframe结构,可以看出其上行传输仅有TS1一个时隙,其余时隙TS0、TS2、TS3、TS4均用于下行传输,上行资源非常紧张。 Figure 1 is a physical layer subframe Subframe structure of a high speed packet access technology cellular CHPA it can be seen that only one time slot TS1 uplink transmission, the remaining time slots TS0, TS2, TS3, TS4 are used for downlink transmission, uplink resources are very tight.

发明内容 SUMMARY

针对上述缺点,本发明提出了一种通信系统中上行共享信道的设置方法,该方法定义一条或者多条USCH,每个UE需要传输数据时,无线接入网分配相应基于子帧的传输时间片,UE在这个时间片(帧或子帧)上传数据和信令消息,在时间片结束时自动实现释放资源。 When the response to these drawbacks, the invention proposes a method for setting a communication system uplink shared channel, the method defines the USCH one or more pieces, each UE needs to transmit data, the corresponding radio access network based on the transmission time slice allocated subframe , the UE at this time slice (frame or subframe) to upload data and signaling messages, automatically release resources when the end of a time slice.

本发明是这样实现的:一种通信系统中上行共享信道的设置方法,该法包括以下步骤,a、在系统中的上行信道上定义至少一条USCH;b、在一移动台(UE)需要传输上行数据时,通过RACH发送上行信令,要求WIB为该UE分配USCH信道资源;c、该WIB根据目前无线信道资源和所有UE的请求分配USCH信道资源;d、该WIB通过下行共享信道(DSCH)或者FACH下发该UE的USCH配置参数;e、该UE根据USCH配置参数在USCH对应帧上发送数据,在合法时间结束时停止发送。 The present invention is achieved: shared channel setting method in a communication system uplink, which comprises the steps of, a, defined upstream channel in the system at least one USCH; b, a mobile station (UE) needs to transmit when uplink data transmission through the RACH uplink signaling is required WIB the UE allocated USCH channel resource; C, the WIB allocating USCH channel resources based on the current request for radio channel resources and all the UE; D, the WIB through a downlink shared channel (DSCH ) or FACH USCH the UE delivers configuration parameters; E, the UE transmits data in accordance with the configuration parameters on USCH corresponds USCH frame, stops transmitting at the end of the legal time.

该USCH需定义扩频因子和信道码号,扩频因子和信道号在不同的系统中可以不同。 USCH need to define the channel and spreading factor code number, spreading factor, and channel number may be different in different systems. 多条的情况完全相同,是否定义更多的USCH,视该时隙所剩资源和UE个数而定。 A plurality of identical circumstances, the USCH defines whether more, depending on the time slot and the UE remaining number of resource availability. 接入网可以广播这些USCH信道的参数配置情况,包括上行时隙、扩频因子、信道号。 The access network may broadcast these parameters USCH channels, including the upstream time slots, spreading factor, a channel number.

USCH信道资源参数包括UE此次上行传输的数据量和UE此次上行数据传输的数据数率。 USCH channel resource parameter comprises an amount of data of the UE, and the uplink transmission data rate of the UE uplink data transmission. 数据速率为可选项,如果USCH的数据速率恒定,则可不带此参数。 Data rate is optional, if the data rate is constant USCH may be without this parameter. 如果USCH速率可变,则可依据当前测量值预定一个上行数据速率。 If the USCH variable rate, depending on the current measured value may be a predetermined uplink data rate.

步骤d中的USCH配置参数包括,重复周期(Repetition Period)、重复长度(RepetitionLength)、偏移量(Offset)和有效结束时间(Valid Time)。 USCH configuration parameters in step d comprises repetition period (Repetition Period), the repeat length (RepetitionLength), offset (Offset) and the end time of valid (Valid Time). 该重复周期指一个固定时间段T,通常单位为帧或子帧。 The repetition period means a fixed period of time T, typically in frames or sub-frames. 该重复长度指在一个周期内该UE所占用时间L,通常单位为帧或者子帧。 The repeat length refers to the UE within a time period occupied by L, typically in frames or sub-frames. 该偏移量(Offset)指在一个周期内该UE开始发送的相对位置Offset,通常单位为帧或者子帧。 The offset (Offset) Offset refers to the relative position within a cycle of the UE starts transmitting, typically in frames or sub-frames. 该有效结束时间(Valid Time)可以用绝对时间系统帧号SFN为结束标志,在到达这一SFN后停止发送,或者也可用相对时间N,在第N个周期后停止发送。 The end time of valid (Valid Time) system may be an absolute time frame number SFN of end mark, after reaching the stop sending SFN, or relative time can also be N, N cycles after the first stop sending.

步骤e中的数据发送和停止按照下述方法:(1)在最近的系统帧满足SFN mod T=Offset时启动发送,连续发射重复长度L帧后暂停发送;(2)在下一个周期满足SFN mod T=Offset时再次启动发送,连续发射重复长度L帧后暂停发送;(3)在系统帧号等于绝对有效时间时停止上行发送。 Transmitting data in step e and stop the following method: (1) in the last system frame satisfying SFN mod T = Offset when the start transmission, pause transmission after continuously transmitting frames repeat length L; (2) satisfies the next cycle SFN mod T = Offset start transmitting again, the continuous emission suspends sending frames repeat length L; (3) stops uplink transmission when the active system frame number equal to the absolute time.

由于PS域业务UE上行发送数据时断时续,本发明相对于专用信道方案大大节省了上行无线资源。 Since the PS domain service of the UE uplink transmission data is intermittent, with respect to the present invention, a dedicated channel program saves the uplink radio resource. 相对于使用RACH方案,每一个上行数据包均需要一个UpPTS,FPACH,PRACH三步接入。 With respect to the embodiment using the RACH, uplink data packet each require a UpPTS, FPACH, PRACH access three steps. 但是在多个数据包情况下,节省了前两步,即只需要PRACH这一步骤即可实现数据接入。 However, in case where a plurality of packets, save the first two steps, i.e., only the step PRACH data access can be realized.

附图说明 BRIEF DESCRIPTION

图1是蜂窝高速分组接入技术CHPA的物理层子帧Subframe结构。 FIG 1 is a physical layer subframe Subframe honeycomb structure of high speed packet access technology CHPA.

图2是UE上行USCH信道发送数据示意图。 FIG 2 is a schematic diagram of UE uplink USCH data transmission channel.

具体实施方式 Detailed ways

下面结合附图和实施例对本发明进一步详细描述。 The present invention is described in further detail below in conjunction with the accompanying drawings and embodiments.

本实施例中,当前CHPA小区仅仅定义了一条上行共享信道USCH。 In this embodiment, the current cell only defines a CHPA uplink shared channel USCH. 目前有两个移动台需要上传数据,UE1有10个数据包,UE2有4个数据包。 Currently there are two mobile stations want to upload data, UE1 has 10 packets, UE2 has four data packets. 设当前时间为SFN=4090(SFN的范围为0.4095,超过后会重新取模4096),如此UE1和UE2均在SFN=0后开始发送上行数据。 Set the current time is SFN = 4090 (SFN range of 0.4095, more than re modulo 4096), thus both UE1 and UE2 uplink data transmission starts after the SFN = 0.

首先,UE1和UE2分别通过上行RACH请求WIB为其分配信道资源。 First, UE1 and UE2, respectively, through an uplink RACH request WIB assign channel resources.

WIB根据当前资源状况、UE的优先级、各个UE的测量值进行调度,并将USCH配置参数从DSCH或者FACH分别下发给UE1和UE2,其具体配置参数见下表。 The WIB current resource status, priority, the measured value of each UE UE performs scheduling, DSCH and USCH or FACH configuration parameters from the distributed UE1 and UE2, respectively, the specific configuration parameters as follows.

UE1、UE2在USCH上的时分参数表 UE1, UE2 on time division parameter table USCH

如图2所示,UE1在接到这一配置参数后的操作是这样的:(m)在最近的SFN mod 8=2时(即SFN=2)开始发送上行数据,并连续发送重复长度3帧后(即SFN=5)暂停发送。 2, UE1 after receiving the operation parameters of this configuration is such that: (m) 8 = 2 (i.e., SFN = 2) starts to send uplink data in the latest SFN mod, and continuously transmits the repeat length 3 after the frame (i.e., SFN = 5) pause transmission.

(2)在下一个SFN mod 8=2(SFN=10)再次启动发送,并连续发送重复长度3帧后(即SFN=13)暂停发送。 (2) the next SFN mod 8 = 2 (SFN = 10) to start transmitting again, and continuously transmits the repeat length of three (i.e., SFN = 13) suspended transmission.

(3)在下一个SFN mod 8=2(SFN=18)再次启动发送,并连续发送重复长度3帧后(即SFN=21)暂停发送。 (3) In the next SFN mod 8 = 2 (SFN = 18) to start transmitting again and the repeat length of the continuous transmission 3 (i.e., SFN = 21) suspended transmission.

(4)在下一个SFN mod 8=2(SFN=26)再次启动发送,在SFN=有效结束时间(SFN=27)时,结束上行数据发送。 (4) the next SFN mod 8 = 2 (SFN = 26) to start transmitting again, when SFN = the effective end time (SFN = 27), the end of the uplink data transmission. 事实上,SFN=27到29的部分已经不属于UE1资源,WIB可以将其分配给别的UE。 Indeed, SFN = 27 to 29 part of resource does not belong to UE1, WIB can be assigned to another UE.

也如图2所示,UE2在接到这一配置参数后的操作与上述相似: Also shown in Figure 2, UE2 operation after receiving the configuration parameters similar to the above:

(1)在最近的SFN mod 16=6时(即SFN=6)开始发送,并连续发送重复长度2帧后(即SFN=5)暂停发送。 (1) = 16 starts sending the latest SFN mod 6 (i.e., SFN = 6), and continuously transmits the repeat length 2 (i.e., SFN = 5) pause transmission.

(2)在下一个SFN mod 16=6(SFN=22)再次启动发送,并连续发送重复长度2帧后(即SFN=24)暂停发送。 (2) the next SFN mod 16 = 6 (SFN = 22) to start transmitting again, and transmits the repeat length of 2 consecutive frames (i.e., SFN = 24) suspended transmission. 因为SFN=24即为有效结束时间,因此UE2停止上行发送。 Because SFN = 24 is the effective end time, the stop UE2 uplink transmission.

如图2在SFN=0-2,5-6,13-18的时间段并不属于UE1和UE2,WIB可以将其分配给别的UE,图中并未画出。 2 at SFN = 0-2,5-6,13-18 period does not belong to UE1 and UE2, WIB can be assigned to another UE, not shown in FIG.

Claims (9)

1.一种通信系统中上行共享信道的设置方法,其特征在于,所述方法包括以下步骤,a、在系统中的上行信道上定义至少一条上行共享信道(USCH);h、在一移动台(UE)需要传输上行数据时,通过随机接入信道(RACH)发送上行信令,要求无线因特网基站(WIB)为所述UE分配USCH信道资源;c、所述WIB根据目前无线信道资源和所有UE的请求分配USCH信道资源;d、所述WIB通过下行共享信道(DSCH)或者FACH下发该UE的USCH配置参数;e、所述UE根据USCH配置参数在USCH对应帧上发送数据,在合法时间结束时停止发送。 The method of setting the shared channel in an uplink A communication system, characterized in that the method comprises the steps of, a, defined upstream channel in the system at least one uplink shared channel (USCH); h, at a mobile station (UE) for transmitting uplink data when necessary, the uplink signaling transmitted through the random access channel (the RACH), the base station requires a wireless Internet (WIB) allocated to the UE USCH channel resource; C, the current wireless channel resources according to the WIB and all request of the UE allocated USCH channel resources; D, the WIB via a downlink shared channel (DSCH) or send USCH the UE configuration parameters FACH; e, the UE transmits data on USCH the corresponding frame according USCH configuration parameters, legitimate stop sending at the end of time.
2.如权利要求1所述的一种通信系统中上行共享信道的设置方法,其进一步特征在于,所述USCH需定义扩频因子和信道码号。 A communication system as claimed in claim 1 in the uplink shared channel setting method, which is further characterized in that said USCH need to define the channel and spreading factor code number.
3.如权利要求1所述的一种通信系统中上行共享信道的设置方法,其进一步特征在于,USCH信道资源参数包括UE此次上行传输的数据量和UE此次上行传输的数据数率。 A communication system as claimed in claim 1 in the uplink shared channel setting method, which is further characterized in that, the USCH channel resource parameter comprises a data rate the UE uplink transmission data amount of the uplink transmission and the UE.
4.如权利要求3所述的一种通信系统中上行共享信道的设置方法,其进一步特征在于,数据速率为可选项,如果USCH的数据速率恒定,则可不带此参数;如果USCH速率可变,则可依据当前对USCH速率的测量值预定一个上行数据速率。 4. The method of setting a shared channel of a communication system according to claim 3 in the uplink, further characterized in that the data rate is optional, if the data rate is constant USCH may be without this parameter; if a variable rate USCH may be predetermined based on the current measured value of a rate uplink USCH data rate.
5.如权利要求1所述的一种通信系统中上行共享信道的设置方法,其进一步特征在于,所述USCH配置参数包括重复周期(Repetition Period)、重复长度(RepetitionLength)、偏移量(Offset)和有效结束时间(Valid Time)。 5. The method of setting a shared channel of a communication system according to claim 1 in the uplink, further characterized in that said configuration parameters comprise USCH repetition period (Repetition Period), the repeat length (RepetitionLength), offset (Offset ) and the effective end time (valid time).
6.如权利要求5所述的一种通信系统中上行共享信道的设置方法,其进一步特征在于,所述重复长度指在一个周期内所述UE所占用时间L,通常单位为帧或者子帧。 6. The method of setting shared channel A communications system as claimed in claim 5, wherein the uplink, further characterized in that, in the repeat length refers to a time period occupied by said UE L, typically in frames or sub-frames .
7.如权利要求5所述的一种通信系统中上行共享信道的设置方法其进一步特征在于,所述偏移量(Offset)指在一个周期内所述UE开始发送数据的位置相对于起始位置的偏移,通常单位为帧或者子帧。 7. A communication system as claimed in claim 5, wherein the uplink shared channel setting method further characterized in that the offset (Offset) refers to the position within one period of the UE starts transmitting data relative to the starting offset position, typically in frames or sub-frames.
8.如权利要求5所述的一种通信系统中上行共享信道的设置方法其进一步特征在于,所述有效结束时间可以用绝对时间系统帧号SFN为结束标志,在到达这一SFN后停止发送,或者也可用相对时间N,在第N个周期后停止发送。 8. The method of setting a communication system according to claim 5 in which the uplink shared channel is further characterized in that the end of the effective time may be an absolute time frame number SFN system flag to end, after reaching the stop sending SFN or N may also be a relative time, stops the transmission after the first N cycles.
9.如权利要求1所述的一种通信系统中上行共享信道的设置方法其进一步特征在于,步骤e中的数据发送和停止按照下述方法:(1)在最近的系统帧满足SFN mod T=Offset时启动发送,连续发射重复长度L帧后暂停发送;(2)在下一个周期满足SFN mod T=Offset时再次启动发送,连续发射重复长度L帧后暂停发送;(3)在系统帧号等于绝对有效时间时停止上行发送。 A communication system according to claim 1 in the uplink shared channel is provided which is further characterized in that the method, and stopping the transmission data in step e according to the following methods: (1) in the last system frame satisfying SFN mod T = start sending Offset, the continuous emission suspends sending the repeat length L frames; (2) the next cycle meets SFN mod T time = Offset start transmitting again, continuous emission suspends sending the repeat length L frames; (3) the system frame number It stops uplink transmission when the valid time is equal to the absolute.
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CN100442876C (en) 2006-01-16 2008-12-10 华为技术有限公司 Method for realizing shared reverse signalling channel
CN100446619C (en) 2005-04-19 2008-12-24 大唐移动通信设备有限公司 Method for inquiring Co-shared channel capacity
CN100551120C (en) 2005-11-04 2009-10-14 华为技术有限公司 Method of controlling dispatch of down going sharing channel in high speed and switch of cells
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CN101272176B (en) * 2007-03-21 2011-09-14 电信科学技术研究院 Initial synchronization method and device of upstream channel
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CN100446619C (en) 2005-04-19 2008-12-24 大唐移动通信设备有限公司 Method for inquiring Co-shared channel capacity
CN102123443B (en) 2005-08-23 2013-05-22 索尼公司 Data packet type recognition system
CN102123443A (en) * 2005-08-23 2011-07-13 索尼公司 Data packet type recognition system
CN100551120C (en) 2005-11-04 2009-10-14 华为技术有限公司 Method of controlling dispatch of down going sharing channel in high speed and switch of cells
CN100442876C (en) 2006-01-16 2008-12-10 华为技术有限公司 Method for realizing shared reverse signalling channel
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