CN101873537A - Business indication method, monitor window expanding method and dormant parameter adjusting method - Google Patents

Business indication method, monitor window expanding method and dormant parameter adjusting method Download PDF

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Publication number
CN101873537A
CN101873537A CN200910137447A CN200910137447A CN101873537A CN 101873537 A CN101873537 A CN 101873537A CN 200910137447 A CN200910137447 A CN 200910137447A CN 200910137447 A CN200910137447 A CN 200910137447A CN 101873537 A CN101873537 A CN 101873537A
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sleep
length
service
terminal
window
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CN101873537B (en
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张磊
宋建全
曲红云
王利
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ZTE Corp
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ZTE Corp
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    • 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

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Abstract

The invention discloses a business indication method, a monitor window expanding method, a dormant parameter adjusting method, a method for terminating a monitor window and a method for quitting a dormant mode, wherein the business indication method comprises the following steps that: a base station transmits a business indication message to a terminal under the situation that the downstream business to be transmitted is determined, and the business indication message is used for indicating one or more terminals to continuously receive the downstream business within one or more continuous dormant periods. Through the above processing, the consumption of resource can be saved, and the delay of the business data transmission can be shortened.

Description

Service indication method, monitoring window expansion method and dormancy parameter adjustment method
Technical Field
The present invention relates to the field of communications, and in particular, to a traffic indication method, a listening window extension method, and a sleep parameter adjustment method.
Background
Currently, the Institute of Electrical and Electronics Engineers (IEEE) 802.16 may provide a power management function of a sleep mode, which is a state in which a Mobile Station (MS) leaves from an air interface of a serving Base Station (BS) for a pre-negotiated period, and this function may reduce consumption of a battery of the MS.
The sleep mode of the MS consists of a series of sleep cycles distributed according to a certain rule; each sleep cycle comprises a listening window and a sleep window; the monitoring window is fixed, and in the monitoring window, the MS needs to receive signaling or service data from the BS, or the MS sends the signaling or service data to the BS; in the sleep window, the MS can close the transmitter and the receiver, thereby achieving the purpose of saving electricity; and, the BS cannot transmit signaling or traffic to the MS within the sleep window.
The distribution rule of the sleep periods is related to the traffic type currently handled by the MS (including the received or transmitted traffic type), for example: for the active grant service, a sleep cycle with a fixed length can be adopted; for services requiring higher bandwidth, a binary incremental sleep cycle can be adopted; while for silent periods of voice traffic, a binary decreasing sleep period may be employed. When the BS has more service data to send to the MS, the listening window of the sleep cycle may be extended to the whole sleep cycle according to the requirement of the service data amount.
In the related art, when the MS is processing one or more services, if there is no service interaction with the BS currently, it enters a sleep mode; after entering the sleep mode, the MS receives a service indication message of the BS in a listening window, thereby judging whether there is a downlink service (downlink data); if no downlink data exists, the MS will continue to return to the original sleep window of the sleep mode after the monitoring window; if there is downlink data, the MS may exit the sleep mode, enter the active mode, and receive the downlink data. After finishing receiving the downlink data, the MS and the BS enter the sleep mode again through signaling interaction.
Currently, in order to avoid frequently exiting the sleep mode, the MS may receive downlink signaling and traffic in the listening window, and may continuously receive downlink traffic by extending the length of the listening window, thereby avoiding exiting the sleep mode to receive downlink traffic. When the MS and the BS finish service interaction in a monitoring window, and a sleep cycle in which the monitoring window is positioned enters according to a sleep mode, the MS and the BS are determined according to a sleep cycle change rule determined by signaling interaction negotiation; how the subsequent sleep period changes can also be accomplished by additional signaling interaction between the MS and the BS.
As can be seen from the above description, the operation of the current MS sleep mode has the following two problems:
problem 1, during the sleep mode initialization, the MS needs to complete the configuration of the sleep mode parameters through signaling interaction with the BS. At this time, the MS may select whether to enable the service indication message after entering the sleep mode according to the characteristics of the service to indicate downlink service data that may occur in the current sleep cycle of the MS.
According to the related technology, under the condition of not starting the service indication message, the MS can select to wait for the complete listening window to end and then enter the sleep window; meanwhile, the BS may instruct the MS to terminate the listening window in advance to enter the sleep window in various ways during the listening window. However, in the case of enabling the service indication message, especially when there is large service data, the MS may not complete the reception of the service data by extending the listening window to the entire sleep cycle. In order to avoid the MS directly exiting the sleep mode, the MS needs to continuously receive the scheduled downlink traffic in the next sleep period or periods. According to the characteristics of the related art, the MS needs to receive the determined service indication message first in the listening window of each subsequent sleep period, and then starts to receive downlink service data. Obviously, the MS may need to complete downlink traffic reception scheduled by the BS at one time by using multiple sleep cycles and receiving multiple traffic indication messages, which inevitably causes delay of traffic data transmission and unnecessary consumption of air interface resources.
Problem 2, the MS in sleep mode operates according to the sleep mode parameters determined by the signaling interaction with the BS. At this time, if a new service connection different from the existing service type is added to the existing active service connection, the MS may need to change the corresponding sleep mode parameter to adjust the sleep period to adapt to the new service type, for example: adjusting the length of the listening window, the initial sleep period or the final sleep period, or changing the change rule of the sleep period. According to the foregoing description, the MS may continue to maintain its own sleep mode at this time, and the signaling interaction between the MS and the BS performed by the listening window is used to implement the definition of the new sleep mode parameter, but this additional signaling interaction needs to carry a large number of sleep mode parameters, which inevitably increases the consumption of air interface resources and the energy consumption of the MS.
Disclosure of Invention
The present invention is proposed in view of the problems of service data transmission delay and air interface resource consumption caused by the fact that an MS in a sleep state completes one downlink service reception in multiple sleep cycles in the related art, and the problems of large air interface resource consumption and large MS energy consumption caused by the fact that the MS modifies sleep mode parameters.
In order to achieve the above object, according to an aspect of the present invention, a traffic indication method for a base station to indicate traffic to a terminal in a sleep mode is provided.
The service indication method comprises the following steps: and the base station sends a service indication message to the terminal under the condition of determining that the downlink service needs to be sent, wherein the service indication message is used for indicating one or more terminals to continuously receive the downlink service in one or more continuous sleep periods.
Preferably, the traffic indication message is sent in a unicast, multicast or broadcast manner.
Preferably, when the service indication message is used to indicate a downlink service of a terminal, the service indication message is sent in a unicast manner.
Preferably, the service indication message directly indicates the number of sleep cycles that the terminal needs to continuously receive using N bits, or the service indication message indicates the number of bits M that the length of the number of sleep cycles needs to occupy by using the value of N bits and indicates the number of sleep cycles by using M-bit binary numbers; alternatively, the traffic indication message indicates the length of the required listening window by directly using K bits.
Preferably, the method further comprises: the base station determines the length of a monitoring window required by the downlink service when the terminal does not exit the sleep mode according to the data volume of the downlink service; and the base station determines the number of the needed sleep cycles according to the length of the monitoring window.
Preferably, the method further comprises: the terminal receives downlink traffic in one or more consecutive sleep periods.
Preferably, the length of the sleep period indicated is the initial sleep period.
To achieve the above object, according to another aspect of the present invention, there is provided a method of extending a listening window.
The method for prolonging the listening window according to the embodiment of the invention comprises the following steps: in the process that the base station sends downlink service to the terminal, the base station determines that new downlink service needs to be sent to the terminal; and the base station sends indication information to the terminal, wherein the indication information is used for indicating that the terminal needs to continue to receive new downlink services in one or more newly-added continuous sleep periods.
Preferably, the service indication message directly indicates the number of sleep cycles that the terminal needs to continuously receive using N bits, or the service indication message indicates the number of bits M that the length of the number of sleep cycles needs to occupy by using the value of N bits and indicates the number of sleep cycles by using M-bit binary numbers; alternatively, the traffic indication message indicates the length of the required listening window by directly using K bits.
Preferably, the method further comprises: the base station determines the length of a monitoring window required by receiving the new downlink service under the condition that the terminal does not exit the sleep mode according to the data volume of the new downlink service; and the base station determines the number of the needed sleep cycles according to the length of the monitoring window needed by the new downlink service.
Preferably, the length of the sleep period indicated is the initial sleep period.
Preferably, after the base station sends the indication message to the terminal, the method further includes: and the terminal continues to receive new downlink services in one or more newly added continuous sleep periods.
Preferably, the implementation of the indication information includes one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data.
In order to achieve the above object, according to an aspect of the present invention, there is provided a listening window extending method for a terminal in a sleep mode to extend a listening window when downlink traffic needs to be received.
The listening window expansion method comprises the following steps: a base station sends a service indication message, wherein the service indication message carries the length of a monitoring window required for receiving downlink service; and the terminal expands the current monitoring window according to the length of the monitoring window and receives downlink service in the expanded current monitoring window.
Preferably, the traffic indication message directly indicates the length of the required listening window by K bits.
Preferably, before the terminal receives the service indication message sent by the base station, the method further includes: and the base station determines the length of a monitoring window required by the downlink service when the terminal does not exit the sleep mode according to the data volume of the downlink service.
Preferably, the length of the listening window required for receiving the downlink traffic is equal to the length of the sleep cycle in which the listening window is located.
To achieve the above object, according to still another aspect of the present invention, there is provided a method of resetting a sleep period.
The method of resetting a sleep cycle according to the present invention includes: after the terminal processes the downlink service in the monitoring window, the terminal resets the length of the sleep cycle to the length of the initial sleep cycle, and the length of the subsequent sleep cycle changes according to a preset rule.
Preferably, the predetermined rule comprises: the length of the next sleep cycle is the minimum value of two values of twice the length of the last sleep cycle and the length of the final sleep cycle.
To achieve the above object, according to still another aspect of the present invention, there is provided a method of extending a listening window length.
The method for prolonging the length of the listening window comprises the following steps: in the process of receiving downlink services by a terminal, a base station determines that new downlink services need to be sent to the terminal; and the base station sends indication information for prolonging the current monitoring window to the terminal so as to indicate the terminal to continue to expand the current monitoring window and continue to receive the new downlink service in the continuously expanded current monitoring window, wherein the indication information carries the length of the monitoring window required for receiving the new downlink service.
Preferably, the traffic indication message directly indicates the length of the required listening window by K bits.
Preferably, after the base station determines that a new downlink service needs to be sent to the terminal, the method further includes: and the base station determines the length of a monitoring window required by the terminal for receiving the new downlink service under the condition that the terminal does not exit the sleep mode according to the size of the data volume of the new downlink service.
Preferably, the implementation of the indication information includes one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data.
In order to achieve the above object, according to still another aspect of the present invention, a sleep parameter adjustment method is provided.
The sleep parameter adjusting method comprises the following steps: the base station sends indication information to the terminal under the condition that any group of dormancy parameters of the terminal need to be changed, wherein the indication information carries identifiers corresponding to the group of dormancy parameters and the dormancy parameters needing to be updated; and the terminal updates the group of sleep parameters according to the identifier and the sleep parameters needing to be updated.
Preferably, the implementation of the indication information includes one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data.
Preferably, any one of the sets of sleep parameters includes at least one of the following parameters: the length of the monitoring window, the length of the initial sleep cycle/initial sleep window, the length of the final sleep cycle/final sleep window, the change rule of the sleep cycle/sleep window and the initial position of the sleep cycle.
To achieve the above object, according to one aspect of the present invention, there is provided a method of terminating a listening window.
The method for terminating the listening window according to the invention comprises the following steps: the base station sends indication information to indicate the terminal in the sleep mode to terminate the listening window, wherein the indication information comprises at least one of the following information: signaling or signaling interaction, and carrying a media access control signaling header or subheader and DL _ MAP _ IE in the lower business data; and the terminal terminates the monitoring window according to the indication information of the base station.
To achieve the above object, according to one aspect of the present invention, there is provided a method of exiting a sleep mode.
The method for exiting the sleep mode according to the present invention comprises: the base station sends indication information to indicate the terminal in the sleep mode to exit the sleep mode, wherein the indication information comprises at least one of the following information: signaling or signaling interaction, and carrying a media access control signaling header or subheader and DL _ MAP _ IE in the lower business data; and the terminal exits the sleep mode according to the indication information of the base station.
By means of the technical scheme of the invention, the terminal is instructed to continuously receive the downlink service in a plurality of continuous sleep cycles through the service instruction message, so that the problems of service data transmission delay and air interface resource consumption caused by finishing one downlink service reception in a plurality of sleep cycles by the MS in a sleep state in the related art are solved, the air interface resource consumption is saved, and the service data transmission delay is shortened.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a service indication method according to a first embodiment of the method of the present invention;
FIG. 2 is a schematic illustration of example 1 according to an embodiment of the invention;
FIG. 3 is a schematic illustration of example 2 according to an embodiment of the invention;
FIG. 4 is a flow chart of a listening window expansion method according to a fourth embodiment of the method of the present invention;
FIG. 5 is a schematic illustration of example 5 according to an embodiment of the invention;
FIG. 6 is a schematic illustration of example 6 according to an embodiment of the invention;
FIG. 7 is a flowchart of a sleep parameter adjustment method according to a sixth embodiment of the present invention;
FIG. 8 is a schematic illustration of example 8 according to an embodiment of the invention;
fig. 9 is a flowchart of a method of terminating a listening window according to a seventh embodiment of the method of the present invention;
FIG. 10 is a schematic illustration of example 10 according to an embodiment of the invention;
fig. 11 is a flowchart of a method of exiting sleep mode according to an eighth embodiment of the present invention.
Detailed Description
Overview of the function
In the related art, if an MS in a sleep state completes one downlink service reception in multiple sleep cycles, the problems of large transmission delay of service data and large consumption of air interface resources may be caused. At this time, the BS does not need to transmit the traffic indication message in the listening windows of a plurality of consecutive sleep periods of the MS, that is, the MS does not need to receive the traffic indication message in the listening windows of a plurality of consecutive sleep periods. In addition, when the BS transmits the scheduled downlink traffic once, if it is found that a new scheduled downlink traffic is generated, the BS may instruct the MS to continue receiving the downlink traffic for a plurality of consecutive sleep periods until all traffic reception is completed.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It may be evident, however, that the present invention may be practiced without these specific details and that various combinations of the following examples, as well as various details of the examples, may be made without departing from the spirit and scope as set forth in the appended claims.
Method embodiment one
According to an embodiment of the present invention, there is provided a traffic indication method for a BS to indicate traffic to an MS in a sleep mode, and fig. 1 is a flowchart of the traffic indication method according to the embodiment of the present invention, as shown in fig. 1, including the following processes (step S102-step S104):
step S102, the BS sends a service indication message to the MS under the condition that the downlink service needs to be sent, wherein the service indication message is used for indicating the MS to continuously receive the downlink service in one or more continuous sleep periods. Generally, the length of the listening window required for receiving the downlink traffic is greater than a sleep period, that is, the downlink traffic has larger traffic data.
Preferably, the traffic indication message adopts unicast,Multicast,Or the service indication message is sent in a broadcast mode, in addition, the service indication message can directly indicate the number of sleep cycles required to be continuously received by the terminal by using N bits; or, the service indication message may represent the number M of bits that the length of the number of sleep cycles needs to occupy by using a value of N bits, and represent the number of sleep cycles by using a binary number of M bits; alternatively, the traffic indication message may also indicate the length of the required listening window by directly using K bits.
In step S102, before the BS sends the service indication message to the MS, the BS determines, according to the size of the data volume of the downlink service to be sent, the length of a listening window required for receiving the downlink service without exiting the sleep mode; then, the BS determines the number of the needed sleep cycles according to the length of the monitoring window; preferably, the BS may carry the number of sleep cycles required for receiving the downlink traffic in the traffic indication message.
Step S104, the MS receives downlink traffic in one or more continuous sleep periods.
Before step S104, the MS needs to configure the current sleep cycle as the initial sleep cycle; then, MS determines one or more continuous sleep cycles for receiving the downlink service according to the number of the needed sleep cycles; and performs step S104 after determining one or more consecutive sleep periods. It should be noted that each of the plurality of consecutive sleep periods is an initial sleep period.
The above-described embodiments of the present invention will be described in detail with reference to examples.
Example 1
Fig. 2 is a schematic diagram of example 1 according to an embodiment of the present invention, and as shown in fig. 2, the MS may be divided into an Active Mode (Active Mode) and a Sleep Mode (Sleep Mode), where there is signaling interaction of MOB _ SLP-REQ and/or MOB _ SLP-RSP in the Active Mode; the Sleep mode includes a plurality of Sleep cycles (Sleep cycles), and one Sleep Cycle includes a Listening Window (Listening Window) and a Sleep Window (Sleep Window), as shown in fig. 2, including the following processes:
step 1, an MS is in a sleep mode, a BS dispatches and finds that services need to be sent to the MS, the BS calculates the time length required for sending all the currently dispatched services, determines the length of a monitoring window required by all the dispatched services under the condition that the MS does not exit the operation of the sleep mode according to the time length required for sending all the services, and carries the determined length of the required monitoring window in a service indication message;
step 2, the BS sends a determined service indication message to the MS in the MS listening window, where the service indication message carries the length of the listening window required for sending all currently scheduled services (for example, a service indication of 2 cycles of acknowledgement sent by the BS when entering SC3 in fig. 2);
step 3, after receiving the service indication message, the MS expands the listening window according to the need and the length of the listening window required by all currently scheduled services carried in the service indication message, so that the listening window is expanded into a plurality of continuous sleep periods (e.g., SC3 and SC4 in fig. 2);
and 4, determining the behavior of the MS after the service reception is finished by other messages or conventions.
Through the above process, the MS may continuously receive the traffic during one or more sleep periods included in the listening window length without receiving the traffic indication message of the period in each sleep period.
Method embodiment two
According to the embodiment of the invention, in the process of sending downlink service to a terminal, a method for prolonging a monitoring window is provided, and in the embodiment of the invention, the method for prolonging the monitoring window comprises the following processing:
step one, in the process that a base station sends downlink service to a terminal, a BS determines that a new downlink service needs to be sent to an MS;
after the first step, the following process also needs to be performed:
1. the BS determines the length of a monitoring window required by the MS for receiving the new downlink service under the condition that the MS does not exit the sleep mode according to the data volume of the new downlink service;
2. and the base station determines the number of the needed sleep cycles according to the length of the monitoring window needed by the new downlink service.
And secondly, the BS sends an indication message to the MS, wherein the indication message is used for indicating that the terminal needs to continue to receive the new downlink service in one or more newly-added continuous sleep periods until all services are received. The predetermined mode includes one of the following: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data. Preferably, the length of the sleep period indicated is the initial sleep period.
Preferably, the service indication message may directly indicate the number of sleep cycles that the terminal needs to continuously receive using N bits, or the service indication message may also indicate the number of bits M that the length of the number of sleep cycles needs to occupy by using the value of N bits, and indicate the number of sleep cycles using M-bit binary numbers; alternatively, the traffic indication message may also indicate the length of the required listening window by directly using K bits.
And thirdly, the MS determines one or more continuous sleep cycles for receiving the new downlink service according to the number of the sleep cycles needed by the new downlink service, and continuously receives the new downlink service in the newly added one or more continuous sleep cycles. Specifically, assuming that a plurality of previously determined continuous periods are SC2, SC3, and SC4, after it is determined that a new downlink service needs to be received, the plurality of continuous periods may be extended to SC2, SC3, SC4, SC5, and SC6 as needed.
The above-described embodiments of the present invention will be described in detail with reference to examples.
Example 2
Fig. 3 is a schematic diagram of example 2 according to an embodiment of the present invention, where the MS may be divided into an Active Mode (Active Mode) and a Sleep Mode (Sleep Mode), where there is signaling interaction of MOB _ SLP-REQ and/or MOB _ SLP-RSP in the Active Mode; the Sleep mode includes a plurality of Sleep cycles (Sleep cycles), and one Sleep Cycle includes a Listening Window (Listening Window) and a Sleep Window (Sleep Window), as shown in fig. 3, including the following processes:
step 1, an MS is in a sleep mode, a BS dispatches and finds that services need to be sent to the MS, the BS calculates the time length required for sending all the currently dispatched services, determines the length of a monitoring window required by all the dispatched services under the condition that the MS does not exit the operation of the sleep mode according to the time length required for sending all the services, and carries the determined length of the required monitoring window in a service indication message;
step 2, the BS sends a determined service indication message to the MS in the MS monitoring window, wherein the service indication message carries the length of the monitoring window required for sending all currently scheduled services;
step 3, after receiving the indication message, the MS expands the monitoring window according to the need and the length of the monitoring window required by all currently scheduled services carried in the service indication message, so that the monitoring window is expanded into a plurality of continuous sleep cycles;
step 4, when the BS finds that a new service sent to the MS is generated in the process of sending all currently scheduled services, the BS calculates the time length required for sending the new service, and determines the length of a monitoring window required for receiving the new service under the condition that the MS does not exit the sleep mode operation according to the time length required for sending the new service;
and step 5, the BS indicates the MS to continue to receive the new service generated by scheduling after the current scheduling service is finished before the current scheduling service sent to the MS is finished, wherein the indication carries the length of a monitoring window required for receiving the new service, and in practical application, the indication is realized in a mode that a signaling and downlink service data carry an MAC extended signaling subheader or DL _ MAP _ IE message.
Step 6, after the current scheduling service is finished, the MS continues to extend the listening window (for example, SC5 in fig. 3 is the listening window that continues to be extended) according to the instruction sent by the BS, and receives a new service.
And 7, determining the behavior of the MS after receiving all the services by other messages or conventions.
Through the above process, the MS may continuously receive the traffic during one or more sleep periods included in the listening window length without receiving the traffic indication message of the period in each sleep period.
Method embodiment three
According to an embodiment of the present invention, there is provided a method of resetting a sleep cycle, the method of resetting a sleep cycle according to an embodiment of the present invention including the processes of:
after the terminal processes the downlink service in the monitoring window, the terminal resets the length of the sleep cycle to the length of the initial sleep cycle, and the length of the subsequent sleep cycle changes according to a preset rule.
Preferably, the predetermined rule comprises: the length of the next sleep cycle is the minimum value of two values of twice the length of the last sleep cycle and the length of the final sleep cycle.
The technical solution of the present invention will be described below with reference to examples.
Example 3
Step 1, an MS is in a sleep mode, a BS schedules and finds that services need to be sent to the MS in a monitoring window, the BS calculates the time length required for sending all the currently scheduled services, determines the length of the monitoring window required by the services under the condition that the MS does not exit the operation of the sleep mode according to the time length for sending all the services, and carries the determined length of the required monitoring window in a service indication message;
step 2, the BS sends the determined service indication message to the MS in the monitoring window;
step 3, after receiving the service indication message, the MS resets the length of the current sleep cycle to the length of the initial sleep cycle;
and 4, the MS receives the service in the length of the monitoring window, and when the monitoring window needs to cross a plurality of continuous sleep cycles, the lengths of all the continuous sleep cycles are set as the length of the initial sleep cycle.
And step 5, after the MS receives the service, the MS continues to change according to the change rule of the sleep cycle.
Through the above processing, the sleep cycle can be set.
Example 4
Step 1, an MS is in a sleep mode, a BS schedules and finds that services need to be sent to the MS in a monitoring window, the BS calculates the time length required for sending all the currently scheduled services, determines the length of the monitoring window required by the services under the condition that the MS does not exit the operation of the sleep mode according to the time length for sending all the services, and carries the determined length of the required monitoring window in a service indication message;
step 2, the BS sends a determined service indication message to the MS at a monitoring window, wherein the service indication message carries the length of the monitoring window required for sending all currently scheduled services, and the length of the monitoring window is irrelevant to the sleep cycle;
step 3, after receiving the service indication message, the MS receives the service in the length of the monitoring window all the time without concerning the length of the sleep cycle;
and 4, after the MS receives the service, the BS instructs the MS to reset the next sleep cycle after the service is received to the initial sleep cycle length by the way that the downlink service data carries the MAC extended signaling subheader or the DL _ MAP _ IE message, and then changes according to the change rule of the sleep cycle.
Through the above processing, the sleep cycle can be set.
Method example four
According to an embodiment of the present invention, a listening window extension method is provided, which is used for extending a listening window by an MS in a sleep mode when the MS needs to receive downlink traffic. In this embodiment, the MS receives the determined service indication message in the listening window of the current sleep period, immediately starts to receive the downlink service in the listening window, and may extend the listening window until all downlink services scheduled by the BS once are completed, without considering the change of the sleep period when receiving the service. The technical solution of the present invention is explained below with reference to fig. 4, where fig. 4 is a flowchart of a listening window extending method according to an embodiment of the present invention, and as shown in fig. 4, the method includes the following processing (step S402-step S404):
step S402, the base station sends a service indication message, wherein the service indication message carries the length of a monitoring window needed for receiving downlink service; preferably, the traffic indication message directly indicates the length of the required listening window by K bits.
Before step S402 is executed (i.e., before the MS receives the traffic indication message sent by the BS), the BS determines, according to the size of the data volume of the downlink traffic, the length of the listening window required for receiving the downlink traffic without the terminal exiting the sleep mode.
Step S404, the terminal expands the current monitoring window according to the length of the monitoring window, and receives the downlink service in the expanded current monitoring window until the downlink service is received.
Preferably, the length of the listening window required for receiving the downlink traffic is equal to the length of the sleep cycle in which the listening window is located.
The above technical solution of the present invention will be described in detail with reference to examples.
Example 5
Fig. 5 is a diagram of example 5, where the MS may be divided into an Active Mode (Active Mode) and a Sleep Mode (Sleep Mode), where there is signaling interaction of MOB _ SLP-REQ and/or MOB _ SLP-RSP in the Active Mode; the Sleep mode includes a plurality of Sleep cycles (Sleep cycles), and one Sleep Cycle includes a Listening Window (Listening Window) and a Sleep Window (Sleep Window), as shown in fig. 5, including the following processes:
step 1, an MS is in a sleep mode, a BS dispatches and finds that a service is sent to the MS in a listening window, the BS calculates the time length required for sending all currently dispatched services, determines the length of the listening window required by the service under the condition that the MS does not exit the operation of the sleep mode according to the time length for sending all the services, and carries the determined length of the required listening window in a service indication message;
step 2, the BS sends a determined service indication message (for example, the determined service indication message sent by the BS when the SC3 is recorded in fig. 5) to the MS in the listening window, where the message carries the length of the listening window required for sending all currently scheduled services, and the length of the listening window is unrelated to the sleep cycle at this time;
step 3, after receiving the service indication message, the MS receives the service in the length of the monitoring window all the time without concerning the length of the sleep cycle;
and 4, determining the behavior of the MS after receiving the service by other messages or conventions.
Through the above process, the MS continuously receives traffic within the extended listening window by extending the listening window (regardless of sleep periods) without having to receive the traffic indication message of the period every sleep period.
Method example five
According to an embodiment of the present invention, a method for extending a listening window length is provided. In the process of sending the downlink service scheduled once, if a newly scheduled downlink service is generated, the BS may instruct the MS to continue to extend the listening window to continuously receive the downlink service until all services including the newly scheduled downlink service are received. Preferably, if the BS downlink indication is with an indication to extend the listening window, the extended window size may be taken. The method for extending the listening window length according to the present invention will be described in detail below.
In the first step, in the process of receiving downlink service, the BS determines that a new downlink service needs to be sent to the MS.
After the first step is executed, the base station needs to determine the length of the listening window needed by the terminal to receive the new downlink service without exiting the sleep mode according to the size of the data volume of the new downlink service.
And secondly, the BS sends indication information for prolonging the current monitoring window to the MS through a preset mode so as to indicate the terminal to continue to expand the current monitoring window and continue to receive new downlink services in the continuously expanded current monitoring window until all services are received, wherein the indication information carries the length of the monitoring window required for receiving the new downlink services. Preferably, the predetermined manner includes one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data.
Preferably, the traffic indication message directly indicates the length of the required listening window by K bits.
The above technical solution of the present invention will be described in detail with reference to examples.
Example 6
Fig. 6 is a schematic diagram of example 6, where the MS may be divided into an Active Mode (Active Mode) and a Sleep Mode (Sleep Mode), where there is signaling interaction of MOB _ SLP-REQ and/or MOB _ SLP-RSP in the Active Mode; the Sleep mode includes a plurality of Sleep cycles (Sleep cycles), and one Sleep Cycle includes a Listening Window (Listening Window) and a Sleep Window (Sleep Window), as shown in fig. 6, including the following processes:
step 1, an MS is in a sleep mode, a BS schedules and finds that services need to be sent to the MS in a monitoring window, the BS calculates the time length required for sending all the currently scheduled services, determines the length of the monitoring window required by the services under the condition that the MS does not exit the operation of the sleep mode according to the time length for sending all the services, and carries the determined length of the required monitoring window in a service indication message;
step 2, BS sends the determined service indication message to MS in the monitoring window, the message carries the length of the monitoring window needed by sending all the currently scheduled services, and the length of the monitoring window is irrelevant to the sleep cycle;
step 3, after receiving the service indication message, the MS receives the service in the length of the monitoring window all the time without concerning the length of the sleep cycle;
step 4, in the process of sending all the currently scheduled services, the BS finds that new services sent to the MS are generated, calculates the time length required for sending the new services generated by the scheduling, and determines the length of a monitoring window required for receiving the new services under the condition that the MS does not exit the sleep mode operation according to the time length required for sending the new services;
and step 5, the BS indicates the MS to continue to receive the new service generated by scheduling after the current scheduling service is finished before the current scheduling service sent to the MS is finished, wherein the indication is realized in a mode that downlink service data carries an MAC extended signaling subheader or DL _ MAP _ IE, and the indication message carries the length of a monitoring window required by the MS to receive the new service.
And 6, after the current scheduling service is finished, the MS continues to receive the new service according to the indication sent by the BS.
And 7, determining the behavior of the MS after receiving all the services by other messages or conventions.
Through the above process, the MS continuously receives traffic within the extended listening window by extending the listening window (regardless of sleep periods) without having to receive the traffic indication message of the period every sleep period.
Method example six
According to an embodiment of the present invention, there is provided a sleep parameter adjustment method, and fig. 7 is a flowchart of the sleep parameter adjustment method according to the embodiment of the present invention, as shown in fig. 7, including the following processes (step S702 to step S706):
step S702, BS stores at least one group of sleep parameters for all MSs in sleep mode in the jurisdiction area, and configures a unique identifier for each group of sleep parameters;
step S704, for each MS in all MSs in sleep mode under the jurisdiction of the BS, the BS notifies the MS of the sleep parameter group saved for the MS and the corresponding relationship between the sleep parameter group and the identifier thereof;
step S706, the BS sends indication information to the terminal when any group of sleep parameters of the MS needs to be changed, where the indication information carries an identifier corresponding to the group of sleep parameters and the sleep parameters that need to be updated, so that the MS adjusts its own sleep parameters according to the identifier and the corresponding relationship.
Preferably, the indication message also carries the sleep parameters to be changed in the changed sleep parameter group. Further, the predetermined manner includes one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data. Preferably, the sleep parameter set includes at least one of the following parameters: the length of the monitoring window, the length of the initial sleep cycle/initial sleep window, the length of the final sleep cycle/final sleep window, the change rule of the sleep cycle/sleep window and the initial position of the sleep cycle.
The above technical solution of the present invention is explained below with reference to examples.
Example 7
Step 1, the MS is in a sleep mode, and the BS and the MS interact in a monitoring window;
step 2, the BS finds that the current service characteristics are changed and needs to adopt new sleep parameters, carries the identifier corresponding to the new sleep parameters adopted by the MS in a mode that downlink service data carries the MAC extended signaling subheader or DL _ MAP _ IE, and indicates the MS to adopt the new sleep parameters;
and 3, the MS receives the indication, determines that the indication carries the identifier corresponding to the new sleep parameter, and immediately starts the new sleep parameter.
Example 8
Fig. 8 is a diagram of example 8, where the MS may be divided into an Active Mode (Active Mode) and a Sleep Mode (Sleep Mode), where there is signaling interaction of MOB _ SLP-REQ and/or MOB _ SLP-RSP in the Active Mode; the Sleep mode includes a plurality of Sleep cycles (Sleep cycles), and one Sleep Cycle includes a Listening Window (Listening Window) and a Sleep Window (Sleep Window), as shown in fig. 8, including the following processes:
step 1, BS and MS are in a sleep mode, and the BS and the MS interact in a monitoring window;
step 2, the BS finds that the current service characteristics are changed and needs to adopt new sleep parameters, and the BS carries an identifier corresponding to the new sleep parameters in a service indication message sent to the MS;
and step 3, the MS receives the service indication message, finds that the identifier corresponding to the new sleep parameter is carried, and immediately starts the new sleep parameter.
Example 9
Step 1, when the MS needs to enter the sleep mode, setting a sleep parameter including at least one of: a monitoring window, an initial sleep cycle/sleep window, a final sleep cycle/sleep window, a change rule of the sleep cycle/sleep window, and an initial position of the sleep cycle/monitoring window.
Step 2, the MS sends the parameters to the BS through an MOB _ SLP _ REQ signaling;
step 3, the BS sends a corresponding signaling MOB _ SLP _ RSP to the MS as a response; the response message may alter the sleep parameters therein.
And 4, after the parameter negotiation configuration is finished, the MS enters an initial sleep period at the initial position/initial frame of the negotiation, wherein the sleep period takes a monitoring window as the beginning, and the length of the subsequent sleep period is changed according to the sleep parameters.
Method example seven
According to an embodiment of the present invention, there is provided a method of terminating a listening window, and fig. 9 is a flowchart of the method of terminating a listening window according to an embodiment of the present invention, as shown in fig. 9, including the following processes (step S902-step S904):
step S902, the BS sends the indication information to indicate the MS in the sleep mode to terminate the listening window by a predetermined manner, wherein the predetermined manner includes at least one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and DL _ MAP _ IE in the lower business data; it should be noted that the listening window may span one or more sleep periods.
In step S904, the MS terminates the listening window according to the indication information of the BS.
The above-described embodiments of the present invention will be described in detail with reference to examples.
Example 10
Fig. 10 is a diagram of example 10, where the MS may be divided into an Active Mode (Active Mode) and a Sleep Mode (Sleep Mode), where there is signaling interaction of MOB _ SLP-REQ and/or MOB _ SLP-RSP in the Active Mode; the Sleep mode includes a plurality of Sleep cycles (Sleep cycles), and one Sleep Cycle includes a Listening Window (Listening Window) and a Sleep Window (Sleep Window), as shown in fig. 10, including the following processes:
step 1, the MS is in a sleep mode, and the BS and the MS interact in a monitoring window;
step 2, the BS finds that no extra service needs to be interacted before the monitoring window is finished, and instructs the MS to terminate the current monitoring window in a mode that downlink service data carries an MAC extended signaling subheader or DL _ MAP _ IE;
and step 3, the MS receives the instruction of stopping the current monitoring window, ends the current monitoring window and enters the sleep window of the current sleep period.
Method example eight
According to an embodiment of the present invention, there is provided a method of exiting a sleep mode, and fig. 11 is a flowchart of the method of exiting the sleep mode according to an embodiment of the present invention, as shown in fig. 11, including the following processes (steps S1102-S1104):
step S1102, the BS sends the indication information to indicate the MS in the sleep mode to exit the sleep mode by a predetermined manner, wherein the predetermined manner includes at least one of the following: signaling or signaling interaction, and carrying a media access control signaling header or subheader and DL _ MAP _ IE in the lower business data;
in step S1104, the MS exits the sleep mode according to the instruction of the BS.
The above-described embodiments of the present invention will be described with reference to the accompanying drawings.
Example 11
Step 1, an MS is in a sleep mode, and a BS indicates the MS to immediately exit the sleep mode in a mode that downlink service data carries an MAC extended signaling subheader or DL _ MAP _ IE;
and step 2, after receiving the indication information, the MS immediately exits from the operation of the sleep cycle and switches to the operation of the active mode.
It is to be understood that various changes and combinations of the above-described modules may be made without departing from the spirit and scope of the invention as set forth in the appended claims.
In summary, with the technical solution of the present invention, the MS is instructed by the service indication message to continuously receive the downlink service in multiple continuous sleep cycles, so as to solve the problems of service data transmission delay and air interface resource consumption caused by completing one downlink service reception in multiple sleep cycles by the MS in a sleep state in the related art, save air interface resource consumption, and shorten service data transmission delay. In addition, the embodiments of the present invention provide the present invention by setting the sleep parameter group and the identifier, which solves the problems of large air interface resource consumption and large MS energy consumption caused by MS modifying the sleep mode parameter in the related art, and can reduce the consumption of the air interface resource and the MS.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (28)

1. A traffic indication method is used for a base station to indicate traffic to a terminal in a sleep mode, and is characterized in that the method comprises the following steps:
the base station sends a service indication message to the terminal under the condition that the downlink service needs to be sent, wherein the service indication message is used for indicating one or more terminals to continuously receive the downlink service in one or more continuous sleep periods.
2. The method of claim 1, wherein the traffic indication message is sent in a unicast manner, a multicast manner, or a broadcast manner.
3. The method according to claim 2, wherein the service indication message is sent in the unicast manner when the service indication message is used to indicate downlink service of a terminal.
4. The method of claim 3,
the service indication message directly indicates the number of sleep cycles that the terminal needs to continuously receive, using N bits, or,
the service indication message represents the number M of the bits required to be occupied by the length of the number of the sleep cycles by using the value of N bits, and represents the number of the sleep cycles by using the binary number of M bits; or,
the traffic indication message represents the length of the required listening window by directly using K bits.
5. The method of claim 1, further comprising:
the base station determines the length of a monitoring window required by the downlink service when the terminal does not exit the sleep mode according to the size of the data volume of the downlink service;
and the base station determines the number of the needed sleep cycles according to the length of the monitoring window.
6. The method of claim 1, further comprising:
and the terminal receives the downlink service in the one or more continuous sleep periods.
7. The method of claim 5, wherein the indicated sleep cycle length is an initial sleep cycle.
8. A method for prolonging a monitoring window is characterized in that in the process of sending downlink service to a terminal by a base station, the method comprises the following steps:
the base station determines that a new downlink service needs to be sent to the terminal;
and the base station sends indication information to the terminal, wherein the indication information is used for indicating that the terminal needs to continuously receive the new downlink service in one or more newly-added continuous sleep periods.
9. The method of claim 8,
the service indication message directly indicates the number of sleep cycles that the terminal needs to continuously receive, using N bits, or,
the service indication message represents the number M of the bits required to be occupied by the length of the number of the sleep cycles by using the value of N bits, and represents the number of the sleep cycles by using the binary number of M bits; or,
the traffic indication message represents the length of the required listening window by directly using K bits.
10. The method of claim 8, further comprising:
the base station determines the length of a monitoring window required by the new downlink service when the terminal does not exit the sleep mode according to the size of the data volume of the new downlink service;
and the base station determines the number of the needed sleep cycles according to the length of the monitoring window needed by the new downlink service.
11. The method of claim 8, wherein the indicated sleep cycle length is an initial sleep cycle.
12. The method of claim 11, wherein after the base station sends the indication information to the terminal, the method further comprises:
and the terminal continuously receives the new downlink service in the newly added one or more continuous sleep periods.
13. The method of claim 12, wherein the indication information is implemented in a manner including one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data.
14. A listening window extension method is used for the terminal in the sleep mode to extend the listening window under the condition of needing to receive the downlink service, and is characterized in that the method comprises the following steps:
the base station sends a service indication message, wherein the service indication message carries the length of a monitoring window required for receiving the downlink service;
and the terminal expands the current monitoring window according to the length of the monitoring window and receives the downlink service in the expanded current monitoring window.
15. The method of claim 14, wherein the traffic indication message directly indicates the length of the listening window with K bits.
16. The method of claim 14, wherein before the base station sends the traffic indication message, the method further comprises:
and the base station determines the length of a monitoring window required by the downlink service when the terminal does not exit the sleep mode according to the size of the data volume of the downlink service.
17. The method of claim 14 or 16, wherein a length of a listening window required for receiving the downlink traffic is equal to a length of a sleep cycle in which the listening window is located.
18. A method for resetting a sleep cycle, wherein after a terminal processes downlink traffic in a listening window, the method comprises:
the terminal resets the length of the sleep cycle to the length of the initial sleep cycle, and the length of the subsequent sleep cycle is changed according to a preset rule.
19. The method of claim 18, wherein the predetermined rules comprise: the length of the next sleep cycle is the minimum value of two values of twice the length of the last sleep cycle and the length of the final sleep cycle.
20. A method for extending the length of a listening window, wherein in the process of receiving downlink traffic, a terminal comprises:
the base station determines that a new downlink service needs to be sent to the terminal;
and the base station sends indication information for prolonging the current monitoring window to the terminal so as to indicate the terminal to continue to expand the current monitoring window and continue to receive the new downlink service in the current monitoring window which continues to expand, wherein the indication information carries the length of the monitoring window required for receiving the new downlink service.
21. The method of claim 20, wherein the traffic indication message directly indicates the length of the listening window with K bits.
22. The method of claim 20, wherein after the base station determines that new downlink traffic needs to be sent to the terminal, the method further comprises:
and the base station determines the length of a monitoring window required by receiving the new downlink service under the condition that the terminal does not exit the sleep mode according to the size of the data volume of the new downlink service.
23. The method of claim 22, wherein the indication information is implemented in a manner including one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data.
24. A sleep parameter adjustment method is characterized by comprising the following steps:
the base station sends indication information to the terminal under the condition that any group of sleep parameters of the terminal needs to be changed, wherein the indication information carries an identifier corresponding to the group of sleep parameters and the sleep parameters needing to be updated;
and the terminal updates the group of sleep parameters according to the identifier and the sleep parameters needing to be updated.
25. The method of claim 24, wherein the indication information is implemented in a manner including one of: signaling or signaling interaction, and carrying a media access control signaling header or subheader and a DL _ MAP _ IE in the lower service data.
26. The method of claim 25, wherein the any one of the sets of sleep parameters comprises at least one of: the length of the monitoring window, the length of the initial sleep cycle/initial sleep window, the length of the final sleep cycle/final sleep window, the change rule of the sleep cycle/sleep window and the initial position of the sleep cycle.
27. A method of terminating a listening window, comprising:
the base station sends indication information to indicate the terminal in the sleep mode to terminate the listening window, wherein the indication information comprises at least one of the following information: signaling or signaling interaction, and carrying a media access control signaling header or subheader and DL _ MAP _ IE in the lower business data;
and the terminal terminates the monitoring window according to the indication information of the base station.
28. A method of exiting a sleep mode, comprising:
the base station sends indication information to indicate the terminal in the sleep mode to exit the sleep mode, wherein the indication information comprises at least one of the following information: signaling or signaling interaction, and carrying a media access control signaling header or subheader and DL _ MAP _ IE in the lower business data;
and the terminal exits the sleep mode according to the indication information of the base station.
CN200910137447.2A 2009-04-22 2009-04-22 Business indication method, monitor window expanding method and dormant parameter adjusting method Expired - Fee Related CN101873537B (en)

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