WO2019227365A1 - 一种应答时隙预留方法、系统及设备 - Google Patents

一种应答时隙预留方法、系统及设备 Download PDF

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Publication number
WO2019227365A1
WO2019227365A1 PCT/CN2018/089155 CN2018089155W WO2019227365A1 WO 2019227365 A1 WO2019227365 A1 WO 2019227365A1 CN 2018089155 W CN2018089155 W CN 2018089155W WO 2019227365 A1 WO2019227365 A1 WO 2019227365A1
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Prior art keywords
mobile station
slot reservation
slot
time slot
base station
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PCT/CN2018/089155
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English (en)
French (fr)
Inventor
张颖哲
吴国稳
班先亮
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海能达通信股份有限公司
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Priority to PCT/CN2018/089155 priority Critical patent/WO2019227365A1/zh
Publication of WO2019227365A1 publication Critical patent/WO2019227365A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of private network communications, and in particular, to a method, a system, and a device for reserving response time slots.
  • the business process of a Digital Mobile Radio (DMR) system or a police Digital Trunking (PDT) system is generally that a mobile station (MS) is waiting on the control channel.
  • the access invitation signaling and common broadcast channel (Common Announcement Channel, CACH) perform channel access management, and the MS applies for a service or sends a response to a service request according to the busy state of the channel.
  • CACH Common Announcement Channel
  • a base station (Base Station, BS) reserves a response time slot for an MS that needs to send a service request response. Specifically, the time slot that needs to send a service request response is set to a busy state in advance, so that only the designated MS can Use this time slot.
  • the BS reserves by default the next uplink time slot when the MS receives a service request.
  • MS1 receives a service request from the BS at the B position.
  • the At bit of the slot is set to 1 to indicate that the next uplink time slot is reserved for MS1 to respond to the service request.
  • MSx will first determine the value of the At bit before initiating a service request to the BS, in order to know the busy status of the time slot, if the time slot is busy, back off. In this way, it can be ensured that the time slot is only used for sending the service request response of MS1.
  • the MS When the MS receives the service request from the BS, it usually completes the response to the service request in the next uplink time slot, but because a time slot in the DMR / PDT system is generally 30 ms, that is, the MS needs to complete the response within 30 ms. All the decoding, parsing, preparation of modulated data, encoding, and transmission series of processing will obviously have higher requirements for the MS's CPU operating frequency.
  • the delivery time of the service request from the BS is random. If the MS is required to complete the above-mentioned series of processing in a time slot, that is, 30 ms, the MS needs to be running at a higher frequency. The response to the service request can complete the series of processing involved in the response in time, which obviously increases the operating power consumption of the MS.
  • the invention provides a response time slot reservation method, system and equipment, which can reduce the operating power consumption of a mobile station.
  • the claim of the present invention provides a response slot reservation method, and the method includes:
  • the base station determines a slot reservation policy corresponding to the mobile station, wherein the slot reservation policy is used to indicate a slot position where the mobile station responds;
  • the base station sends the slot reservation policy to the mobile station, so that the mobile station adjusts a CPU operating frequency according to the reserved slot policy, and responds to a service request at the slot position.
  • the determining, by the base station, a slot reservation policy corresponding to the mobile station includes:
  • the base station determines a slot reservation policy corresponding to the mobile station according to the current system service status
  • the base station After receiving the slot reservation request from the mobile station, the base station determines a slot reservation policy corresponding to the mobile station.
  • the sending, by the base station, the slot reservation policy to the mobile station includes:
  • the base station sends the slot reservation policy to the mobile station by extending any downlink signaling.
  • the time slot reservation policy is further used to indicate the number of time slots in which the mobile station responds.
  • the method further includes:
  • the base station works based on the slot reservation policy.
  • the invention also provides a response slot reservation method, which includes:
  • the mobile station receives a slot reservation policy from the base station; wherein the slot reservation policy is used to indicate a slot position where the mobile station responds;
  • the mobile station adjusts a CPU operating frequency according to the slot reservation policy, and responds to a service request at the slot position.
  • the method before the mobile station receives the slot reservation policy from the base station, the method further includes:
  • the mobile station sends a slot reservation request to the base station, and the slot reservation request is used to request to determine a slot reservation policy.
  • the sending, by the mobile station, a slot reservation request to the base station includes:
  • the mobile station sends a slot reservation request to the base station by extending any uplink signaling.
  • the invention also provides a response time slot reservation system, the system includes a base station and a mobile station;
  • the base station is configured to determine a slot reservation policy corresponding to the mobile station, and send the slot reservation policy to the mobile station; wherein the slot reservation policy is used to indicate the mobile station The time slot position where the station responds;
  • the mobile station is configured to adjust a CPU operating frequency according to the slot reservation policy, and respond to a service request at the slot position.
  • the present invention also provides a response time slot reservation device, where the device includes a memory and a processor;
  • the memory is configured to store program code and transmit the program code to the processor
  • the processor is configured to perform the following steps according to the instructions in the program code: determining a slot reservation policy corresponding to the mobile station; wherein the slot reservation policy is used to indicate a time slot in which the mobile station responds Position; sending the slot reservation policy to the mobile station, so that the mobile station adjusts a CPU operating frequency according to the reserved slot policy, and responds to a service request at the slot position.
  • the present invention also provides a response time slot reservation device, where the device includes a memory and a processor;
  • the memory is configured to store program code and transmit the program code to the processor
  • the processor is configured to perform the following steps according to instructions in the program code: receiving a slot reservation policy from a base station; wherein the slot reservation policy is used to indicate a slot position for a response; according to the The slot reservation policy adjusts the CPU operating frequency and responds to service requests at the slot position.
  • the base station determines the slot reservation policy corresponding to the mobile station in advance, and sends the slot reservation policy to the mobile station, so that the mobile station adjusts the CPU according to the slot reservation policy. Run a frequency, and respond to a service request at the slot position.
  • the mobile station before the base station sends a service request, the mobile station has clearly known the response time slot of the service request through the slot reservation policy. Therefore, the mobile station can adjust the CPU operating frequency to an operating frequency matching its processing capability in advance.
  • the CPU operating frequency required to complete the series of processes involved in the response in a timely manner can be achieved to ensure that the response processing is completed in the response time slot, while the mobile station does not need to run at a higher frequency all the time, reducing Operating power consumption of the mobile station.
  • FIG. 1 is a schematic diagram of response time slot reservation in the prior art
  • FIG. 2 is a schematic diagram of a frame structure
  • FIG. 3 is a flowchart of a response time slot reservation method according to an embodiment of the present invention.
  • FIG. 4 is an interaction diagram of a response time slot reservation method according to an embodiment of the present invention.
  • FIG. 5 is an interaction diagram of another response slot reservation method according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a response time slot reservation system according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a response time slot reservation device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another response time slot reservation device according to an embodiment of the present invention.
  • the DMR / PDT standard uses a time-division multiple address (TDMA) frame structure of two time slots.
  • TDMA time-division multiple address
  • a TDMA frame contains two time slots, each time slot is 30ms, divided into In the uplink (MS TX) and downlink (BS TX) directions, the two slots in the BS TX direction are CACH signaling in the middle, and the CACH signaling is a common broadcast channel, which is sent in the middle of the two downlink slots.
  • MS TX uplink
  • BS TX downlink
  • Access type AT is used as a field in CACH signaling to indicate the available status of the next uplink time slot. When AT is 0, it indicates that the next uplink time slot is idle and available. When AT is 1 , It indicates that the available status of the next uplink time slot is busy unavailable.
  • the base station reserves the next uplink time slot for sending a service request to the mobile station as the mobile station's response time slot for the service request.
  • the specific implementation manner is to set the AT after the uplink time slot for sending a service request to make the next uplink time slot only for the mobile station. That is to say, the mobile station needs to complete the response to the service request in the reserved time slot, that is, to complete all the decoding, parsing, preparation of modulated data, encoding and retransmission and other processes involved in the response.
  • the time for issuing the service request from the base station is random. If the mobile station is required to complete the response to the service request in the reserved time slot, the mobile station must be running at all times. For higher frequencies, once a response to a service request is required, a series of processing related to the response can be completed in time, which obviously increases the operating power consumption of the mobile station.
  • an embodiment of the present invention provides a response time slot reservation method.
  • a time slot reservation policy is determined in advance between a base station and a mobile station, so that before the base station sends a service request, the mobile station has clearly known the response to the service request.
  • Time slot so the mobile station can adjust the CPU operating frequency to an operating frequency that matches its processing capacity in advance, so that when the response time slot arrives, it can reach the CPU operating frequency required to complete the series of processing involved in the response in time, ensuring The response processing is completed in the response time slot, and at the same time, the mobile station does not need to be always running at a higher frequency, which reduces the operating power consumption of the mobile station.
  • the response slot reservation method includes:
  • the base station determines a slot reservation policy corresponding to the mobile station.
  • the slot reservation policy is used to indicate a slot position where the mobile station responds.
  • the base station determines the slot reservation policy corresponding to the mobile station in advance, that is, the slot position where the mobile station responds is determined in advance.
  • the base station may determine a slot reservation policy corresponding to the mobile station according to the current system service status and the processing capability of the mobile station.
  • the slot reservation policy may indicate a slot position in which a mobile station responds by indicating a response of one or several timeslot positions after sending a service request.
  • the time slot reservation policy may be a certain one after the base station sends a service request.
  • the uplink time slot responds to the service request; it may also respond to the service request in several uplink time slots after the base station sends the service request.
  • the slot reservation policy can also be used to indicate the number of timeslots that the mobile station responds to, that is, the mobile station can use multiple timeslots to respond to service requests, such as several times after the base station sends a service request.
  • the uplink slot responds to the service request.
  • S302 The base station sends the slot reservation policy to the mobile station.
  • the mobile station After the base station determines a slot reservation policy corresponding to the mobile station in advance, the mobile station is notified of the slot reservation policy so that the mobile station explicitly performs a response slot for the service request before the base station sends the service request. .
  • the base station sends any determined downlink slot reservation policy to the corresponding mobile station by extending any downlink instruction.
  • the base station may send the determined slot reservation policy to the corresponding mobile station by extending downlink CSBK (Control Signaling Block, Control Signaling Block) signaling, so as to notify the mobile station of the specified slot reservation policy.
  • the time slot responds.
  • S303 The mobile station adjusts a CPU operating frequency according to the slot reservation policy, and responds to a service request at the slot position.
  • the mobile station can adjust the CPU operation in advance according to the time slot reservation policy before the response time slot arrives. Frequency, so that when the response time slot arrives, the operating frequency of the mobile station has reached the operating frequency of all operations related to decoding, parsing, preparing modulated data, encoding, and transmitting.
  • the mobile station can respond to the subsequent service requests according to the slot reservation policy, and only when the mobile station receives the slot reservation from the base station again. After retaining the policy, the service request will be answered according to the new slot reservation policy.
  • the base station works based on the slot reservation policy corresponding to each mobile station. In an implementation manner, after sending a service request that needs to be answered to the mobile station, the base station sets the At bit position corresponding to the response time slot specified in the corresponding time slot reservation policy to indicate that the time slot is only used by the mobile station. Answer.
  • the base station determines the time slot reservation policy corresponding to the mobile station in advance, and sends the time slot reservation policy to the mobile station, so that the mobile station can use the time slot reservation policy. Adjust the CPU operating frequency and respond at the time slot position.
  • the mobile station before the base station sends a service request, the mobile station has clearly known the response time slot of the service request through the slot reservation policy. Therefore, the mobile station can adjust the CPU operating frequency to an operating frequency matching its processing capability in advance.
  • the CPU operating frequency required to complete the series of processes involved in the response in a timely manner can be achieved to ensure that the response processing is completed in the response time slot, while the mobile station does not need to run at a higher frequency all the time, reducing Operating power consumption of the mobile station.
  • FIG. 4 it is an interaction diagram of a response slot reservation method according to an embodiment of the present invention. The method includes:
  • S401 The mobile station sends a slot reservation request to the base station, where the slot reservation request is used to request to determine a slot reservation policy.
  • a mobile station can send a slot reservation request to the base station by extending any uplink signaling to request the base station to determine the slot reservation policy. Specifically, it can send a slot to the base station by extending the uplink CSBK signaling. Reservation request.
  • the base station determines and sends a slot reservation policy corresponding to the mobile station, where the slot reservation policy is used to indicate a slot position where the mobile station responds.
  • the base station can determine a slot reservation policy corresponding to the mobile station according to the current system service status. In addition, if the slot reservation request carries the slot position requested by the mobile station for reservation, the base station can also determine whether the slot position is feasible, and if so, determine the slot according to the slot position requested by the mobile station to reserve A reservation policy, and sends the determined slot reservation policy to the mobile station.
  • S403 The mobile station adjusts the CPU operating frequency according to the slot reservation policy.
  • the mobile station Before the base station sends a service request to the mobile station, the mobile station adjusts the CPU operating frequency in advance according to the position of the response slot specified in the slot reservation policy, so that after reaching the specified response slot, the operating frequency can meet the Series processing requirements.
  • S404 The base station sends a service request to the mobile station.
  • S405 The mobile station responds to the service request at the time slot position specified by the time slot reservation policy.
  • the mobile station Before the service request is sent, the mobile station already knows the position of the time slot for the response. Therefore, before the response time slot is reached, the mobile station adjusts the CPU operating frequency in advance to complete the series of processing involved in the response at the accurate time slot position. .
  • each mobile station can actively apply for a time slot reservation policy in order to know in advance the position of a time slot for a response to a service request, and adjust the CPU operating frequency.
  • the gap arrives, it can reach the CPU operating frequency required to complete the series of processes involved in the response in a timely manner, ensuring that the response processing is completed in the response time slot, while the mobile station does not need to be constantly running at a higher frequency, which reduces the mobile station's operation Power consumption.
  • the base station may initiate adjustment of the slot reservation policy at any time. After the mobile station and the base station have cleared the slot reservation policy, the two need to complete synchronization of the slot reservation policy.
  • FIG. 5 it is an interaction diagram of another response slot reservation method according to an embodiment of the present invention. The method includes:
  • the base station determines a slot reservation policy corresponding to the mobile station according to the current system service status.
  • the base station can determine the slot reservation policy corresponding to each mobile station according to the current system service status. Specifically, when the base station needs to send a service request that requires a response, it needs to first determine a slot reservation policy corresponding to the mobile station that receives the service request.
  • S502 The base station sends the slot reservation policy to the mobile station.
  • S503 The mobile station acknowledges the time slot reservation policy.
  • the mobile station after receiving a time slot reservation policy from a base station, the mobile station can respond to the time slot reservation policy to confirm that the mobile station has synchronized with the base station.
  • each mobile station can be configured with the same slot reservation policy, and the base station can uniformly send the slot preamble to the mobile stations configured with the same slot reservation policy through extended broadcast signaling.
  • This strategy requires each mobile station to run at a frequency that meets the highest processing requirements by default, to prevent possible service failures caused by failure to receive broadcasts.
  • each mobile station may separately perform a response confirmation on the time slot reservation policy or may not perform a response confirmation, and a specific implementation solution is not limited herein.
  • each mobile station may be configured with a different slot reservation policy.
  • each mobile station may acknowledge the received slot reservation policy in order to inform the base station.
  • the mobile station is synchronized with the base station.
  • each mobile station may not perform response confirmation, and its specific implementation scheme is not limited here.
  • S504 The mobile station adjusts the CPU operating frequency according to the slot reservation policy.
  • S505 The base station sends a service request to the mobile station.
  • S506 The mobile station responds to the service request at the time slot position specified by the time slot reservation policy.
  • the base station may send a corresponding slot reservation policy to the mobile station according to the current system service status, so that the mobile station can know the response slot for the service request in advance, and
  • the CPU operating frequency is adjusted so that when the response time slot arrives, it can reach the CPU operating frequency required to complete the series of processing involved in the response in a timely manner, ensuring that the response processing is completed in the response time slot, and the mobile station does not need to be running in the
  • the high frequency reduces the operating power consumption of the mobile station.
  • an embodiment of the present invention further provides a response time slot reservation system.
  • FIG. 6 it is a schematic structural diagram of a response time slot reservation system according to an embodiment of the present invention.
  • the response time slot reservation system includes: a base station 601 and a mobile station 602;
  • the base station 601 is configured to determine a slot reservation policy corresponding to the mobile station, and send the slot reservation policy to the mobile station; wherein the slot reservation policy is used to indicate the mobile station The time slot position where the mobile station responds;
  • the mobile station 602 is configured to adjust a CPU operating frequency according to the slot reservation policy, and respond to a service request at the slot position.
  • the base station is specifically configured to determine a slot reservation policy corresponding to the mobile station according to the current system service status.
  • the base station is specifically configured to determine a slot reservation policy corresponding to the mobile station after receiving the slot reservation request from the mobile station.
  • the base station is specifically configured to send the time slot reservation policy to the mobile station by extending any downlink signaling.
  • the time slot reservation policy is further used to indicate the number of time slots in which the mobile station responds.
  • the base station is further configured to work based on the time slot reservation policy.
  • the mobile station is further configured to send a slot reservation request to the base station, where the slot reservation request is used to request to determine a slot reservation policy.
  • the mobile station is specifically configured to send a slot reservation request to the base station by extending any uplink signaling.
  • the base station determines the time slot reservation policy corresponding to the mobile station in advance, and sends the time slot reservation policy to the mobile station, so that the mobile station according to the time slot reservation policy Adjust the CPU operating frequency and respond at the time slot position.
  • the mobile station before the base station sends a service request, the mobile station has clearly known the response time slot of the service request through the slot reservation policy. Therefore, the mobile station can adjust the CPU operating frequency to an operating frequency matching its processing capability in advance.
  • the CPU operating frequency required to complete the series of processes involved in the response in a timely manner can be achieved to ensure that the response processing is completed in the response time slot, while the mobile station does not need to run at a higher frequency all the time, reducing Operating power consumption of the mobile station.
  • the present invention also provides a schematic structural diagram of a response time slot reservation device, as shown in FIG. 7, where the device includes at least one memory 701 and at least one processor 702, and further includes at least one network interface 703; the memory 701 The processor 702 and the network interface 703 are connected to each other through a bus.
  • the memory 701 is configured to store a program code, and transmit the program code to the processor 702.
  • the processor 702 is configured to perform the following steps according to the instructions in the program code: determine a slot reservation policy corresponding to the mobile station; wherein the slot reservation policy is used to indicate a time slot in which the mobile station responds Position; sending the slot reservation policy to the mobile station, so that the mobile station adjusts a CPU operating frequency according to the reserved slot policy, and responds to a service request at the slot position.
  • the processor 702 is further configured to determine a slot reservation policy corresponding to the mobile station according to the current system service status.
  • the processor 702 is further configured to determine a slot reservation policy corresponding to the mobile station after receiving a slot reservation request from the mobile station.
  • the processor 702 is further configured to send the slot reservation policy to the mobile station by extending any downlink signaling.
  • the processor 702 is further configured to work based on the slot reservation policy.
  • the present invention also provides a schematic structural diagram of another response time slot reservation device, as shown in FIG. 8, where the device includes at least one memory 801 and at least one processor 802, and further includes at least one network interface 803; the memory 801, the processor 802, and the network interface 803 are mutually connected through a bus.
  • the memory 801 is configured to store a program code, and transmit the program code to the processor 802.
  • the processor 802 is configured to perform the following steps according to instructions in the program code: receiving a slot reservation policy from a base station; wherein the slot reservation policy is used to indicate a slot position for a response; according to the The slot reservation strategy adjusts the CPU operating frequency and responds at the slot position.
  • the processor 802 is further configured to send a slot reservation request to the base station, where the slot reservation request is used to request to determine a slot reservation policy.
  • the processor 802 is further configured to send a slot reservation request to a base station by extending any uplink signaling.
  • the relevant part may refer to the description of the method embodiment.
  • the device embodiments described above are only schematic, and the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located One place, or it can be distributed across multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the objective of the solution of this embodiment. Those of ordinary skill in the art can understand and implement without creative efforts.

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Abstract

本发明公开一种应答时隙预留方法、系统及设备，所述方法包括：基站确定移动台对应的时隙预留策略；时隙预留策略用于指示移动台进行应答的时隙位置；基站将时隙预留策略发送至移动台，以便所述移动台根据所述预留时隙策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。本发明中在基站发送业务请求之前，移动台通过时隙预留策略已经明确知道该业务请求的应答时隙，所以，移动台可以预先将CPU运行频率调整到与其处理能力匹配的运行频率上，以便在应答时隙达到时，能够达到及时完成应答涉及的一系列处理所需的CPU运行频率，保证在应答时隙中完成应答处理，同时不需要移动台一直运行在较高的频率，减少了移动台的运行功耗。

Description

一种应答时隙预留方法、系统及设备 技术领域
本发明涉及专网通信领域，具体涉及一种应答时隙预留方法、系统及设备。
背景技术
数字移动无线电(Digital Mobile Radio，DMR)系统或警用数字集群(Police Digital Trunking，PDT)系统的业务过程一般是移动台(Mobile Station，MS)守候在控制信道上，控制信道会通过下发随机接入邀请信令和公共广播信道(Common Announcement Channel，CACH)进行信道接入管理，MS根据信道的繁忙状态进行业务的申请或者发送业务请求的应答。
通常，基站(Base Station，BS)会为需要发送业务请求应答的MS进行应答时隙的预留，具体的，提前将需要发送业务请求应答的时隙设置为繁忙状态，以使只有指定MS才能使用该时隙。
目前DMR/PDT标准中BS是默认在MS收到业务请求的下一个上行时隙进行预留，如图1所示，MS1在B位置收到来自BS的业务请求，基站会将下个上行时隙的At比特位置1，以表示将该下个上行时隙预留给MS1进行业务请求的应答。由于其他随机接入终端MSx向BS发起业务请求前会先判断At比特位的值，以便获知时隙的繁忙状态，如果该时隙繁忙则进行退避。通过这种方式可以保证该时隙只用于MS1的业务请求应答的发送。
当MS接收到来自BS的业务请求后，通常会在下一个上行时隙完成业务请求的应答，但是由于DMR/PDT系统中一个时隙一般为30ms，也就是说，MS需要在30ms内完成应答涉及的所有解码、解析、准备调制数据、编码和转发射等一系列处理，显然会对MS的CPU运行频率有较高的要求。
另外，对于MS来说，来自BS的业务请求的下发时间随机，如果要求MS在一个时隙即30ms的时间内完成上述一系列处理，则需要MS一直运行在较高的频率，一旦需要进行业务请求的应答，才能及时完成应答涉及的一系列处理，这样显然会增大MS的运行功耗。
发明内容
本发明提供了一种应答时隙预留方法、系统及设备，能够降低移动台的运行功耗。
本发明权利要求提供了一种应答时隙预留方法，所述方法包括：
基站确定移动台对应的时隙预留策略；其中，所述时隙预留策略用于指示所述移动台进行应答的时隙位置；
所述基站将所述时隙预留策略发送至所述移动台，以便所述移动台根据所述预留时隙策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
可选的，所述基站确定移动台对应的时隙预留策略，包括：
基站根据当前系统业务状况，确定移动台对应的时隙预留策略；
或者，
基站接收到来自移动台的时隙预留请求后，确定所述移动台对应的时隙预留策略。
可选的，所述基站将所述时隙预留策略发送至所述移动台，包括：
所述基站通过扩展任一下行信令，将所述时隙预留策略发送至所述移动台。
可选的，所述时隙预留策略还用于指示所述移动台进行应答的时隙个数。
可选的，所述方法还包括：
所述基站基于所述时隙预留策略进行工作。
本发明还提供了一种应答时隙预留方法，所述方法包括：
移动台接收来自基站的时隙预留策略；其中，所述时隙预留策略用于指示所述移动台进行应答的时隙位置；
所述移动台根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
可选的，所述移动台接收来自基站的时隙预留策略之前，还包括：
所述移动台向基站发送时隙预留请求，所述时隙预留请求用于请求确定时隙预留策略。
可选的，所述移动台向基站发送时隙预留请求，包括：
所述移动台通过扩展任一上行信令，向基站发送时隙预留请求。
本发明还提供了一种应答时隙预留系统，所述系统包括基站和移动台；
所述基站，用于确定所述移动台对应的时隙预留策略，并将所述时隙预留策略发送至所述移动台；其中，所述时隙预留策略用于指示所述移动台进行应答的时隙位置；
所述移动台，用于根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
本发明还提供了一种应答时隙预留设备，所述设备包括存储器和处理器；
所述存储器，用于存储程序代码，并将所述程序代码传输给所述处理器；
所述处理器用于根据所述程序代码中的指令，执行以下步骤：确定移动台对应的时隙预留策略；其中，所述时隙预留策略用于指示所述移动台进行应答的时隙位置；将所述时隙预留策略发送至所述移动台，以便所述移动台根据所述预留时隙策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
本发明还提供了一种应答时隙预留设备，所述设备包括存储器和处理器；
所述存储器，用于存储程序代码，并将所述程序代码传输给所述处理器；
所述处理器用于根据所述程序代码中的指令，执行以下步骤：接收来自基站的时隙预留策略；其中，所述时隙预留策略用于指示进行应答的时隙位置；根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
本发明提供的应答时隙预留方法中，基站预先确定移动台对应的时隙预留策略，并将时隙预留策略发送至该移动台，以便该移动台根据时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。本发明中在基站发送业务请求之前，移动台通过时隙预留策略已经明确知道该业务请求的应答时隙，所以，移动台可以预先将CPU运行频率调整到与其处理能力匹配的运行频率上，以便在应答时隙达到时，能够达到及时完成应答涉及的一系列处理所需的CPU运行频率，保证在应答时隙中完成应答处理，同时不需要移动台一直运行在较高的频率，减少了移动台的运行功耗。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中 所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中的应答时隙预留示意图；
图2为一种帧结构示意图；
图3为本发明实施例提供的一种应答时隙预留方法的流程图；
图4为本发明实施例提供的一种应答时隙预留方法的交互图；
图5为本发明实施例提供的另一种应答时隙预留方法的交互图；
图6为本发明实施例提供的一种应答时隙预留系统的结构示意图；
图7为本发明实施例提供的一种应答时隙预留设备的结构示意图；
图8为本发明实施例提供的另一种应答时隙预留设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
DMR/PDT标准采用两个时隙的时分多址(Time Divide Multi Address，TDMA)帧结构，如图2所示，在一个TDMA帧中包含2个时隙，每个时隙为30ms，分为上行(MS TX)和下行(BS TX)两个方向，其中，BS TX方向的两个时隙中间为CACH信令，CACH信令为公共广播信道，在两个下行时隙中间发送，主要用来进行信道管理和接入控制，并携带一些低速信令。接入类型(Access Type，AT)作为CACH信令中的字段，用于指示下一个上行时隙的可用状态，当AT为0时，代表下一个上行时隙为空闲可用状态，当AT为1时，代表下一个上行时隙的可用状态为繁忙不可用状态。
目前，基站会将向移动台发送业务请求的下一个上行时隙进行预留，作为该移动台对该业务请求的应答时隙。具体实现方式是，将用于发送业务请求的上行时隙后的AT置1，以使下一个上行时隙仅为该移动台所用。也就是 说，该移动台需要在该预留时隙完成对该业务请求的应答，即完成应答涉及的所有解码、解析、准备调制数据、编码和转发射等一系列处理。但是，由于对该移动台来说，来自基站的业务请求的下发时间是随机的，如果要求该移动台在该预留时隙完成对该业务请求的应答，则需要该移动台一直运行在较高的频率，一旦需要进行业务请求的应答，才能及时完成应答涉及的一系列处理，这样显然会增大移动台的运行功耗。
为此，本发明实施例提供了一种应答时隙预留方法，基站与移动台之间预先确定时隙预留策略，从而在基站发送业务请求之前，移动台已经明确知道该业务请求的应答时隙，所以，移动台可以预先将CPU运行频率调整到与其处理能力匹配的运行频率上，以便在应答时隙到达时，能够达到及时完成应答涉及的一系列处理所需的CPU运行频率，保证在应答时隙中完成应答处理，同时不需要移动台一直运行在较高的频率，减少了移动台的运行功耗。
为了进一步对上述内容进行解释，本发明实施例提供了一种应答时隙预留方法的流程图，参考图3，具体的，该应答时隙预留方法包括：
S301：基站确定移动台对应的时隙预留策略；其中，所述时隙预留策略用于指示所述移动台进行应答的时隙位置。
实际应用中，基站预先确定移动台对应的时隙预留策略，即预先确定移动台进行应答的时隙位置。具体的，基站可以根据当前系统业务状况以及移动台的处理能力，确定移动台对应的时隙预留策略。其中，时隙预留策略中可以通过指明在发送业务请求后的某一个或某几个的时隙位置进行应答的方式，指示移动台进行应答的时隙位置。
不同的移动台可以具有相同的时隙预留策略，或者，不同的移动台也可以具有不同的时隙预留策略，具体的，时隙预留策略可以是在基站发送业务请求后的某一个上行时隙进行该业务请求的应答；也可以是在基站发送业务请求后的某几个上行时隙进行该业务请求的应答。
另外，时隙预留策略还可以用于指示移动台进行应答的时隙个数，也就是说，移动台可以利用多个时隙进行业务请求的应答，如在基站发送业务请求之后的几个上行时隙进行该业务请求的应答。
S302：基站将所述时隙预留策略发送至所述移动台。
实际应用中，在基站预先确定移动台对应的时隙预留策略后，将该时隙预留策略通知该移动台，以便该移动台在基站发送业务请求之前明确进行该业务请求的应答时隙。
一种实现方式中，基站通过扩展任意一个下行指令，将确定的时隙预留策略发送至对应的移动台。具体的，基站可以通过扩展下行CSBK(Control Signalling Block，控制信令块)信令，将确定的时隙预留策略发送至对应的移动台，以便通知移动台在该时隙预留策略指定的时隙进行应答。
S303：所述移动台根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
由于移动台在基站发送业务请求之前已经通过预留时隙策略获知该业务请求的应答时隙，所以，该移动台可以在该应答时隙到来之前，根据该时隙预留策略提前调整CPU运行频率，以便在应答时隙到来时该移动台的运行频率已经达到处理应答涉及的所有解码、解析、准备调制数据、编码和转发射等一系列操作的运行频率。另外，移动台在确定时隙预留策略后，对于后续各种业务请求的应答，均可以根据该时隙预留策略进行业务请求的应答，只有在移动台再次接收到来自基站的时隙预留策略后，才会根据新的时隙预留策略进行业务请求的应答。
另外，基站在确定移动台对应的时隙预留策略后，基于各个移动台对应的时隙预留策略进行工作。一种实现方式中，基站在向移动台发送需要应答的业务请求后，将对应的时隙预留策略中指明的应答时隙对应的At比特位置1，表明该时隙仅用于该移动台进行应答。
本发明实施例提供的应答时隙预留方法中，基站预先确定移动台对应的时隙预留策略，并将时隙预留策略发送至该移动台，以便该移动台根据时隙预留策略调整CPU运行频率，并在所述时隙位置进行应答。本发明中在基站发送业务请求之前，移动台通过时隙预留策略已经明确知道该业务请求的应答时隙，所以，移动台可以预先将CPU运行频率调整到与其处理能力匹配的运行频率上，以便在应答时隙达到时，能够达到及时完成应答涉及的一系列处理所需的CPU运行频率，保证在应答时隙中完成应答处理，同时不需要移 动台一直运行在较高的频率，减少了移动台的运行功耗。
一种应用场景中，移动台可以随时主动向基站申请时隙预留策略，在移动台和基站明确时隙预留策略后，二者需要完成该时隙预留策略的同步。具体的，参考图4，为本发明实施例提供的一种应答时隙预留方法的交互图，该方法包括：
S401：移动台向基站发送时隙预留请求，所述时隙预留请求用于请求确定时隙预留策略。
实际应用中，移动台可以通过扩展任意一个上行信令，向基站发送时隙预留请求，以便请求基站确定时隙预留策略，具体的，可以通过扩展上行CSBK信令，向基站发送时隙预留请求。
S402：基站确定并发送该移动台对应的时隙预留策略；其中，所述时隙预留策略用于指示所述移动台进行应答的时隙位置。
实际应用中，基站接收到来自移动台的时隙预留请求后，可以根据当前系统业务状况，确定该移动台对应的时隙预留策略。另外，如果时隙预留请求中携带有移动台请求预留的时隙位置，基站也可以确定该时隙位置是否可行，如果可行，则根据该移动台请求预留的时隙位置确定时隙预留策略，并将确定的时隙预留策略发送至该移动台。
S403：移动台根据该时隙预留策略调整CPU运行频率。
在基站向移动台发送业务请求之前，移动台根据时隙预留策略中指定的应答时隙的位置，提前调整CPU运行频率，使得到达指定的应答时隙后，运行频率能够满足应答涉及的一系列处理的要求。
S404：基站向移动台发送业务请求。
S405：移动台在时隙预留策略指定的时隙位置进行该业务请求的应答。
由于在业务请求发送之前，移动台已经获知进行应答的时隙位置，所以，移动台在应答时隙达到之前，预先调整好CPU运行频率，以便在准确的时隙位置完成应答涉及的一系列处理。
本发明实施例提供的应答时隙预留方法中，各个移动台能够主动申请时 隙预留策略，以便提前获知进行业务请求的应答的时隙位置，并对CPU运行频率进行调整，在应答时隙到达时，能够达到及时完成应答涉及的一系列处理所需的CPU运行频率，保证在应答时隙中完成应答处理，同时不需要移动台一直运行在较高的频率，减少了移动台的运行功耗。
另一种应用场景中，基站可以随时发起对时隙预留策略的调整，在移动台和基站明确时隙预留策略后，二者需要完成该时隙预留策略的同步。具体的，参考图5，为本发明实施例提供的另一种应答时隙预留方法的交互图，该方法包括：
S501：基站根据当前系统业务状况，确定移动台对应的时隙预留策略。
实际应用中，基站可以根据当前系统业务状况，确定各个移动台对应的时隙预留策略。具体的，当基站需要发送要求应答的业务请求时，需要首先确定接收该业务请求的移动台对应的时隙预留策略。
S502：基站将该时隙预留策略发送至该移动台。
S503：移动台针对该时隙预留策略进行应答确认。
实际应用中，移动台在接收到来自基站的时隙预留策略后，可以针对该时隙预留策略进行应答确认，以便告知基站该移动台已与基站同步。
一种具体的实现方式中，每个移动台可以配置有相同的时隙预留策略，基站可以统一通过扩展的广播信令向配置有相同时隙预留策略的移动台同时发送该时隙预留策略，这种处理方式需要各个移动台默认运行在符合最高处理要求的频率，防止收不到广播可能造成的业务失败情况发生。这种情况下，各个移动台在接收该时隙预留策略后可以针对该时隙预留策略分别进行应答确认，也可以不进行应答确认，在此不限定其具体实现方案。
另一种具体的实现方式中，每个移动台可以配置有不同的时隙预留策略，针对这种情况，每个移动台可以针对接收到的时隙预留策略进行应答确认，以便告知基站该移动台已与基站同步。另外，每个移动台也可以不进行应答确认，在此不限定其具体实现方案。
S504：移动台根据该时隙预留策略调整CPU运行频率。
S505：基站向该移动台发送业务请求。
S506：移动台在时隙预留策略指定的时隙位置进行该业务请求的应答。
本发明实施例中的S504-S506与上述实施例中的S403-S405实现过程相似，可参照理解，在此不再赘述。
本发明实施例提供的应答时隙预留方法中，基站可以根据当前系统业务状况，向移动台发送对应的时隙预留策略，以使得移动台能够提前获知进行业务请求的应答时隙，并对CPU运行频率进行调整，在应答时隙到达时，能够达到及时完成应答涉及的一系列处理所需的CPU运行频率，保证在应答时隙中完成应答处理，同时不需要移动台一直运行在较高的频率，减少了移动台的运行功耗。
与上述方法实施例相对应的，本发明实施例还提供了一种应答时隙预留系统，参考图6，为本发明实施例提供的一种应答时隙预留系统的结构示意图。该应答时隙预留系统包括：基站601和移动台602；
所述基站601，用于确定所述移动台对应的时隙预留策略，并将所述时隙预留策略发送至所述移动台；其中，所述时隙预留策略用于指示所述移动台进行应答的时隙位置；
所述移动台602，用于根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
可选的，基站，具体用于根据当前系统业务状况，确定移动台对应的时隙预留策略。
或者，
可选的，基站，具体用于接收到来自移动台的时隙预留请求后，确定所述移动台对应的时隙预留策略。
可选的，基站，具体用于通过扩展任一下行信令，将所述时隙预留策略发送至所述移动台。
可选的，时隙预留策略还用于指示所述移动台进行应答的时隙个数。
可选的，基站，还用于基于所述时隙预留策略进行工作。
可选的，移动台，还用于向基站发送时隙预留请求，所述时隙预留请求用于请求确定时隙预留策略。
可选的，移动台，具体用于通过扩展任一上行信令，向基站发送时隙预留请求。
本发明实施例提供的应答时隙预留系统中，基站预先确定移动台对应的时隙预留策略，并将时隙预留策略发送至该移动台，以便该移动台根据时隙预留策略调整CPU运行频率，并在所述时隙位置进行应答。本发明中在基站发送业务请求之前，移动台通过时隙预留策略已经明确知道该业务请求的应答时隙，所以，移动台可以预先将CPU运行频率调整到与其处理能力匹配的运行频率上，以便在应答时隙达到时，能够达到及时完成应答涉及的一系列处理所需的CPU运行频率，保证在应答时隙中完成应答处理，同时不需要移动台一直运行在较高的频率，减少了移动台的运行功耗。
本发明还提供了一种应答时隙预留设备的结构示意图，如图7所示，其中，所述设备至少包括一个存储器701和至少一个处理器702，还包括至少一个网络接口703；存储器701、处理器702和网络接口703之间通过总线相互连接。
存储器701用于存储程序代码，并将该程序代码传输给该处理器702。
处理器702用于根据所述程序代码中的指令，执行以下步骤：确定移动台对应的时隙预留策略；其中，所述时隙预留策略用于指示所述移动台进行应答的时隙位置；将所述时隙预留策略发送至所述移动台，以便所述移动台根据所述预留时隙策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
进一步的，所述处理器702还用于根据当前系统业务状况，确定移动台对应的时隙预留策略。
或者，所述处理器702还用于接收到来自移动台的时隙预留请求后，确定所述移动台对应的时隙预留策略。
更进一步的，所述处理器702还用于通过扩展任一下行信令，将所述时隙预留策略发送至所述移动台。
更进一步的，所述处理器702还用于基于所述时隙预留策略进行工作。
本发明还提供了另一种应答时隙预留设备的结构示意图，如图8所示， 其中，所述设备至少包括一个存储器801和至少一个处理器802，还包括至少一个网络接口803；存储器801、处理器802和网络接口803之间通过总线相互连接。
存储器801用于存储程序代码，并将该程序代码传输给该处理器802。
处理器802用于根据所述程序代码中的指令，执行以下步骤：接收来自基站的时隙预留策略；其中，所述时隙预留策略用于指示进行应答的时隙位置；根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行应答。
进一步的，所述处理器802还用于向基站发送时隙预留请求，所述时隙预留请求用于请求确定时隙预留策略。
更进一步的，所述处理器802还用于通过扩展任一上行信令，向基站发送时隙预留请求。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本发明实施例所提供的一种应答时隙预留方法、系统及设备进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (11)

  1. 一种应答时隙预留方法，其中，所述方法包括：
    基站确定移动台对应的时隙预留策略；所述时隙预留策略用于指示所述移动台进行应答的时隙位置；
    所述基站将所述时隙预留策略发送至所述移动台，以便所述移动台根据所述预留时隙策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
  2. 根据权利要求1所述的方法，其中，所述基站确定移动台对应的时隙预留策略，包括：
    基站根据当前系统业务状况以及移动台的处理能力，确定所述移动台对应的时隙预留策略；
    或者，
    基站接收到来自移动台的时隙预留请求后，确定所述移动台对应的时隙预留策略。
  3. 根据权利要求1所述的方法，其中，所述基站将所述时隙预留策略发送至所述移动台，包括：
    所述基站通过扩展任一下行信令，将所述时隙预留策略发送至所述移动台。
  4. 根据权利要求1所述的方法，其中，所述时隙预留策略还用于指示所述移动台进行应答的时隙个数。
  5. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述基站基于所述时隙预留策略进行工作。
  6. 一种应答时隙预留方法，其中，所述方法包括：
    移动台接收来自基站的时隙预留策略；所述时隙预留策略用于指示所述移动台进行应答的时隙位置；
    所述移动台根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
  7. 根据权利要求6所述的方法，其中，所述移动台接收来自基站的时隙预留策略之前，还包括：
    所述移动台向基站发送时隙预留请求，所述时隙预留请求用于请求确定时隙预留策略。
  8. 根据权利要求7所述的方法，其中，所述移动台向基站发送时隙预留请求，包括：
    所述移动台通过扩展任一上行信令，向基站发送时隙预留请求。
  9. 一种应答时隙预留系统，其中，所述系统包括基站和移动台；
    所述基站，用于确定所述移动台对应的时隙预留策略，并将所述时隙预留策略发送至所述移动台；所述时隙预留策略用于指示所述移动台进行应答的时隙位置；
    所述移动台，用于根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
  10. 一种应答时隙预留设备，其中，所述设备包括存储器和处理器；
    所述存储器，用于存储程序代码，并将所述程序代码传输给所述处理器；
    所述处理器用于根据所述程序代码中的指令，执行以下步骤：确定移动台对应的时隙预留策略；所述时隙预留策略用于指示所述移动台进行应答的时隙位置；将所述时隙预留策略发送至所述移动台，以便所述移动台根据所述预留时隙策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
  11. 一种应答时隙预留设备，其中，所述设备包括存储器和处理器；
    所述存储器，用于存储程序代码，并将所述程序代码传输给所述处理器；
    所述处理器用于根据所述程序代码中的指令，执行以下步骤：接收来自基站的时隙预留策略；所述时隙预留策略用于指示进行应答的时隙位置；根据所述时隙预留策略调整CPU运行频率，并在所述时隙位置进行业务请求的应答。
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CN101808371A (zh) * 2010-03-30 2010-08-18 重庆邮电大学 支持多跳资源预留的IEEE802.16Mesh网络资源预留方法
CN101909328A (zh) * 2010-08-19 2010-12-08 优能通信科技（杭州）有限公司 Dmr数字集群分组数据无线接入实现方法
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