WO2008080292A1 - Procédé de rapport d'information de programmation de liaison ascendante - Google Patents

Procédé de rapport d'information de programmation de liaison ascendante Download PDF

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Publication number
WO2008080292A1
WO2008080292A1 PCT/CN2007/003361 CN2007003361W WO2008080292A1 WO 2008080292 A1 WO2008080292 A1 WO 2008080292A1 CN 2007003361 W CN2007003361 W CN 2007003361W WO 2008080292 A1 WO2008080292 A1 WO 2008080292A1
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WO
WIPO (PCT)
Prior art keywords
scheduling information
uplink scheduling
report
terminal
predetermined condition
Prior art date
Application number
PCT/CN2007/003361
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English (en)
Chinese (zh)
Inventor
Qinghai Zeng
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Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Publication of WO2008080292A1 publication Critical patent/WO2008080292A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present invention relates to the field of wireless communications, and in particular to a method for reporting uplink scheduling information.
  • FIG. 1 illustrates a conventional wireless communication system.
  • the wireless communication system mainly includes a terminal 110, a base station 120, and a core network 130.
  • the base station 120 may have a logical or physical connection between the base stations 120 as needed.
  • the network formed by the base station 120 is called a radio access network (Radio Access Network, called RAN), and is responsible for access layer transactions, such as management of radio resources.
  • RAN Radio Access Network
  • the uplink and downlink radio resources are scheduled by the base station according to the shared channel. .
  • the base stations 120 are all connected to a core network (Core Network, abbreviated as CN) 130, and each base station 120 can be connected to one or more core networks 130.
  • the core network 130 is responsible for non-access stratum transactions, such as billing, location management, and the like.
  • Terminal 110 refers to a device that can communicate with a network, such as a cell phone, a personal digital assistant (PDA), or a laptop. Each terminal 110 is typically only connected to one of the base stations in the network in the upstream direction.
  • the base station scheduling mode is generally used to control the uplink transmission of different terminals to improve channel utilization.
  • a complete uplink scheduling usually includes four processes: a terminal sends an uplink scheduling information (UL scheduling information) report, a base station schedules and performs authorization, an authorized delivery, and a terminal performs an authorized uplink transmission.
  • FIG. 2 shows the foregoing process in detail. As shown in FIG. 2, the specific process is as follows: Step S210: The terminal schedules or sends an uplink scheduling information report to the base station according to the event triggering. Step S220: The base station according to available resources and all terminals The uplink scheduling information allocates resources to the terminal according to a certain policy. In step S230, the base station sends the authorization information sent by the uplink to the terminal.
  • step S240 the terminal sends the data and/or control information in the uplink based on the authorization information sent by the uplink.
  • step S210 the terminal needs to report its own uplink scheduling information to the base station, where the uplink scheduling information is information that is provided by the terminal to the base station in order to implement fair and efficient scheduling of the uplink resources, and the specific information content may be different depending on the system. change.
  • the uplink scheduling information includes the buffer status of the highest priority service in the terminal and the status of all service buffers in the terminal, for TDD (Time Division Diplex) , time division duplex) system, the uplink scheduling information also includes SNPL (Serving and Neighbour Cell Pathloss), and the neighboring cell path loss.
  • the uplink scheduling information includes the status of the buffer queue of each radio bearer group (Radio Bearer Group), which may include CQI (Channel Quality Indication) and power headroom. Wait.
  • the terminal For convenience, in the HSUPA system, the terminal always reports the buffer status of the highest priority service and the status of all service buffers in the terminal each time the uplink scheduling information is reported. For the LTE system, there are also four reports. Proposal for the status of each RBG buffer. For the wireless communication system, the air interface resource is very valuable, and the transmission of the uplink scheduling information report increases the uplink overhead of the system, especially for the delay sensitive service that needs to frequently report the uplink scheduling information, and all or part of the uplink scheduling information is always "Bundling" together reports will undoubtedly increase the system's uplink overhead, because some services do not need to use such high reporting frequency for uplink scheduling information.
  • the present invention aims to provide an uplink scheduling information reporting method, which simultaneously considers The wireless communication environment and all uplink scheduling information reduce the overhead of reporting the uplink scheduling information by reducing the content of the uplink scheduling information report.
  • a method for reporting uplink scheduling information is provided, which is applied to a wireless communication system including a terminal and a base station.
  • the uplink scheduling information that the terminal needs to report is divided into at least two types, including: condition report type uplink scheduling information And the unconditional report type uplink scheduling information, and the terminal and the base station agree on a predetermined condition of the condition report type uplink scheduling information; when the terminal generates the uplink scheduling information 4, the unconditional report type uplink scheduling information and the condition report class satisfying the predetermined condition are
  • the uplink scheduling information is added to the uplink scheduling information report.
  • the classification is performed according to whether the terminal must be uploaded every time the terminal is reported.
  • the predetermined condition is that the amount of change of the condition report type uplink scheduling information after the last successful report exceeds the report threshold or belongs to the report threshold range.
  • the predetermined condition is that the change amount of the condition report type uplink scheduling information from the last time after the last successful report is not known by the base station exceeds the report threshold or belongs to the report threshold range.
  • the predetermined condition includes a first predetermined condition and a second predetermined condition, wherein the first predetermined condition is that the amount of change of the condition report type uplink scheduling information from the last successful report exceeds the report threshold or belongs to the report threshold range;
  • the condition is that the amount of change in the condition report type uplink scheduling information from the last time after the last successful report is not known by the base station exceeds the reporting threshold or falls within the reporting threshold.
  • the condition report type uplink scheduling information has a decision parameter for indicating a corresponding predetermined condition, wherein, in a case where the decision parameter of the condition report type uplink scheduling information is a change amount, indicating that it corresponds to the first predetermined
  • the condition is that, in the case that the decision parameter of the conditional class uplink scheduling information is a change amount that is not known by the base station, it is indicated that it corresponds to the second predetermined condition.
  • the different uplink scheduling information may correspond to the same or different reporting thresholds or reporting threshold ranges.
  • the condition report type uplink scheduling information includes any one or a combination of the following: buffer queue information, buffer queue group information, and power headroom information.
  • the report that the terminal generates the uplink scheduling information may be triggered by an event or a timer.
  • the uplink scheduling information content of each time is reduced, and the uplink overhead caused by the uplink scheduling information can be effectively reduced.
  • FIG. 2 is a schematic diagram of an uplink scheduling procedure of a wireless communication system according to the related art
  • FIG. 3 is a reporting method of uplink scheduling information according to an embodiment of the present invention
  • Figure 4 is a 3D diagram of Example 1 of the method shown in Figure 3
  • Figure 5 is a flow chart of Example 2 of the method shown in Figure 3
  • Figure 6 is an example 3 of the method shown in Figure 3. flow chart.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, for reducing the overhead of reporting uplink scheduling information, the content of the uplink scheduling information report is undoubtedly one of the most important factors, that is, if the content of the uplink scheduling information report can be reduced, Reduce the overhead of reporting upstream scheduling information.
  • the embodiment of the present invention provides a method for reporting uplink scheduling information, which classifies uplink scheduling information, and determines whether to report certain uplink scheduling information according to conditions.
  • the uplink scheduling information mentioned below may be information of a buffer queue (group) and/or power headroom information, and the information of the buffer queue (group) further includes a buffer queue (group) length, Buffer queue (group) priority and/or queue header data wait time, etc.
  • the uplink scheduling information may be divided into multiple parts according to the classification of the data service type and the report content, the parts may be divided into different levels, for example, the uplink scheduling information may include information of all buffer queues in the terminal.
  • FIG. 3 is a flowchart showing a reporting method of uplink scheduling information according to an embodiment of the present invention.
  • the method may include the following processing (step S302 - step S304): Step S302, classifying the uplink scheduling information that the terminal needs to report, which may be classified into several categories, and preferably may be divided into the following two categories.
  • Step S304 the terminal generates the uplink scheduling information When reporting, the unconditional report type uplink scheduling information and the conditional advertisement class uplink scheduling information satisfying the predetermined condition are added to the uplink scheduling information report.
  • the terminal generates a new uplink scheduling information report when the trigger condition for sending the uplink scheduling information report (such as when the timer expires or a trigger event occurs) is satisfied.
  • the uplink scheduling information it can be classified according to whether the terminal must report every time it is on the top; and whether it is necessary to go up every time, it can be based on QoS (Quality of Service). determine.
  • QoS Quality of Service
  • the terminal needs to determine the type of the uplink scheduling information, and if it is the unconditional report type uplink scheduling information, directly join the uplink scheduling information report, and if it is the condition report type uplink scheduling information, determine whether the predetermined scheduling condition is met. If it is satisfied, the uplink scheduling information 4 is added, and if it is not satisfied, it is not reported in this report.
  • the predetermined condition is that the condition report type uplink scheduling information has exceeded the report since the last successful report.
  • the threshold value is either within the reporting threshold range;
  • the predetermined condition is that the amount of change that the base station is not aware of in the change amount of the condition report type uplink scheduling information from the last successful report exceeds the report threshold or falls within the report threshold range.
  • the predetermined condition may be a first predetermined condition or a second predetermined condition, and the first predetermined condition is that the amount of change of the condition report type uplink scheduling information from the last successfully reported exceeds the reporting threshold or belongs to the reporting threshold;
  • the second predetermined condition is that the change amount of the condition report type uplink scheduling information from the last time after the last successful report is not known by the base station exceeds the report threshold or belongs to the report threshold range.
  • the condition report type uplink scheduling information has a decision parameter, which is used to indicate the corresponding a predetermined condition, wherein, in a case where the decision parameter of the condition report type uplink scheduling information is a change amount, indicating that it corresponds to the first predetermined condition, the decision parameter of the condition report type uplink scheduling information is a change amount of the base station unavailable In the case, it is indicated that it corresponds to the second predetermined component.
  • step S304 the operation of step S304 can be further described as follows: First, the terminal determines the type of the uplink scheduling information, and if it is the unconditional report type uplink scheduling information, directly joins the uplink scheduling information report; if it is the condition report type uplink scheduling information, further determines If the decision parameter is the amount of change, it is judged whether it satisfies the first predetermined condition, and if it is satisfied, the uplink scheduling information report is added, if not, it is not reported in the report, if the decision parameter is unknown to the base station The amount of change is judged whether it satisfies the second predetermined condition. Similarly, if it is satisfied, the uplink scheduling information report is added, and if it is not satisfied, it is not reported in this report.
  • the above-mentioned unknown amount of change refers to the amount of change that the base station cannot know based on the information obtained by the base station (such as the number of resources that have been authorized to transmit data to the terminal and the fixed law of the data reaching the terminal, etc.). For example: If the last scheduling information of the terminal reports that 1500 bytes are waiting to be sent in the buffer queue, and the base station reports that it has authorized the transmission of 1000 bytes of resources, the base station can know (or estimate) that the terminal will have 500 words remaining. If the terminal's buffer queue enters 300 bytes of data between the last 4 reports and the current report, the 300 bytes of data change is the base station's inestimable terminal buffer queue length change. the amount.
  • Example 1 Specific implementation of the first case
  • the buffer queues with similar QoS parameters can be grouped into one buffer queue group, and the buffer queues of each group can be reported in groups when the buffer queue length is reported to the base station. Total length.
  • FIG. 4 is a flowchart of generating and transmitting uplink scheduling information 4 by a terminal having five buffer queue groups. In the figure, the terminal determines the uplink scheduling information according to a certain period, and only reports the length information of the buffer queue group, and the threshold of all buffer queue groups is set to ⁇ 50 bytes.
  • Step S410 The terminal agrees with the base station in the process of accessing the network, and then enters the normal uplink scheduling information reporting process;
  • Step S420 The terminal determines whether the timer for reporting the uplink scheduling information times out; if it times out, the process goes to step S430, otherwise it stays at the step until the timer expires;
  • Step S430 the terminal starts the current scheduling information reporting process.
  • step S440 the terminal determines whether the length of the nth buffer queue group has changed from the last 4 reports to ⁇ 50 bytes; if yes, proceeds to the next step S450, otherwise proceeds to step S460; Step S450 The information of the length of the nth buffer queue group is added to the current uplink scheduling information report; Step S460, the value of the n value is increased by 1; in step S470, the terminal determines whether the five buffer queue groups are processed, that is, whether n is determined If it is greater than 5 (the number of buffer queue groups of the terminal), if n>5, the process proceeds to the next step, otherwise, the process returns to step S440; in step S480, the terminal sends an uplink scheduling information report to the base station.
  • Example 2 Specific implementation of the second case
  • the terminal of the wireless communication system since the base station already knows the uplink transmission that the terminal has completed, when reporting the uplink scheduling information, the terminal does not need to report the change result that the base station can calculate, so the base station Reporting can be based on the amount of change that the base station cannot extrapolate. It is also possible to set a reporting threshold and report the corresponding uplink scheduling information only when the base station's incalculable change reaches or exceeds the reporting threshold.
  • FIG. 5 is a flow of generating and transmitting an uplink scheduling information report by a terminal having four buffer queues. The figure assumes that the terminal reports the uplink scheduling information according to a certain period, and only reports the length information of the buffer queue.
  • Step S510 The terminal agrees with the base station to report all the thresholds in the process of accessing the network, and then enters a normal uplink scheduling information reporting process.
  • Step S520 The terminal determines whether the timer for reporting the uplink scheduling information times out. If the timeout expires, the process proceeds to step S530, otherwise, the process stops until the timer expires.
  • step S560 the value boosting port 1
  • step S570 the terminal determines whether the five buffer queues are processed, that is, whether n is greater than 4
  • FIG. 6 shows a specific implementation flow of Case 3.
  • Step S610 The terminal agrees with the base station on all the predetermined conditions (that is, the agreed report threshold or the report threshold range) in the process of accessing the network, and then enters a normal uplink scheduling information reporting process.
  • the part of the uplink scheduling information (referred to as SI[n]) is the unsolicited advertisement class uplink scheduling information or the condition report type uplink scheduling information; if it is the unconditional reporting class uplink scheduling information, the process proceeds to step S660, if it is a conditional report class.
  • Step S650 the terminal determining the decision parameter of the nth part of the uplink scheduling information, and performing different processing according to the decision parameter; substep S6501, if the decision parameter of the nth part of the uplink scheduling information is The nth part of the uplink scheduling information changes, the terminal determines the nth part of the uplink scheduling information If the last part is the amount of change uplink scheduling information (referred to as V__SI [n]) after a successful report for uplink scheduling portion Within the reporting threshold for information settings.
  • V__SI [n] the amount of change uplink scheduling information
  • step S670 If yes, go to step S670, otherwise go to step S660; sub-step S6502, if the judgment parameter of the nth part of the uplink scheduling information is the base station unavailable change amount of the nth part of the uplink scheduling information, the terminal judges The nth part of the uplink scheduling information is not known from the base station after the last time the uplink scheduling information is successfully reported, whether the change amount (referred to as UPV_SI[n]) is within the reporting threshold set for the part of the uplink scheduling information, and if so, Go to step S670, otherwise go to step S660; Step S660, add the nth part of the uplink scheduling information to the current uplink scheduling information report; Step S670, increase the value of n by 1; Step S680, the terminal determines whether the uplink scheduling information is processed.
  • the change amount referred to as UPV_SI[n]
  • the terminal sends an uplink scheduling information report to the base station.
  • the condition report type uplink scheduling information includes any one or a combination of the following: buffer queue information, buffer queue group information, and power headroom information.
  • the fourth report that the terminal generates the uplink scheduling information may be triggered by an event or a timer.
  • the uplink scheduling information content of each uplink can be reduced, and the uplink overhead caused by the uplink scheduling information report can be effectively reduced.

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

Abstract

La présente invention concerne un procédé de rapport d'information de programmation de liaison ascendante comprenant : des informations de programmation de liaison ascendante devant être rapportées par un terminal sont classées dans au moins deux catégories comprenant une catégorie de rapport avec condition d'information de programmation de liaison ascendante et une catégorie de rapport sans condition d'information de programmation de liaison ascendante (S302) et le terminal engage une condition prédéterminée pour rapporter la catégorie de rapport avec condition de l'information de programmation de liaison ascendante au poste de base ; quand le terminal génère le rapport d'information de programmation de liaison ascendante, il ajoute la catégorie de rapport sans condition d'information de programmation de liaison ascendante et la catégorie de rapport avec condition d'information de programmation de liaison ascendante remplissant la condition prédéterminée au rapport d'information de programmation de liaison ascendante (S304). Dans l'invention, en classant l'information de programmation de liaison ascendante, le contenu d'information de programmation de liaison ascendante rapporté à chaque fois est réduit, et le surdébit de liaison ascendante généré par le rapport d'information de programmation de liaison ascendante peut être réduit de manière efficace.
PCT/CN2007/003361 2006-12-29 2007-11-28 Procédé de rapport d'information de programmation de liaison ascendante WO2008080292A1 (fr)

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CN200610169882XA CN101212248B (zh) 2006-12-29 2006-12-29 一种无线通信系统中上行调度信息的报告方法
CN200610169882.X 2006-12-29

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CN102056318B (zh) * 2009-11-05 2014-12-10 中兴通讯股份有限公司 一种终端触发调度信息发送的方法及系统
CN104426684B (zh) * 2013-08-20 2018-10-12 上海斐讯数据通信技术有限公司 Pon系统及其状态更新方法
EP3281485B1 (fr) 2015-04-08 2020-10-21 Interdigital Patent Holdings, Inc. Dispositif et procédé pour des opérations lte dans des bandes sans licence

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US20050265301A1 (en) * 2004-02-14 2005-12-01 Samsung Electronics Co., Ltd. Method of transmitting scheduling information on an enhanced uplink dedicated channel in a mobile communication system
CN1710831A (zh) * 2004-06-18 2005-12-21 北京三星通信技术研究有限公司 宽带码分多址中指示上行调度信息是否发送的方法和设备
KR20060034606A (ko) * 2004-10-19 2006-04-24 엘지전자 주식회사 상향링크 강화 채널 패킷의 전송 제어 방법

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CN1780179A (zh) * 2004-11-24 2006-05-31 北京三星通信技术研究有限公司 用于高速率时分双工系统的下行调度信息的传输方法

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US20050265301A1 (en) * 2004-02-14 2005-12-01 Samsung Electronics Co., Ltd. Method of transmitting scheduling information on an enhanced uplink dedicated channel in a mobile communication system
CN1710831A (zh) * 2004-06-18 2005-12-21 北京三星通信技术研究有限公司 宽带码分多址中指示上行调度信息是否发送的方法和设备
KR20060034606A (ko) * 2004-10-19 2006-04-24 엘지전자 주식회사 상향링크 강화 채널 패킷의 전송 제어 방법

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CN101212248A (zh) 2008-07-02

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