CN108668290B - Method and device for receiving data in parallel - Google Patents

Method and device for receiving data in parallel Download PDF

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CN108668290B
CN108668290B CN201710204553.2A CN201710204553A CN108668290B CN 108668290 B CN108668290 B CN 108668290B CN 201710204553 A CN201710204553 A CN 201710204553A CN 108668290 B CN108668290 B CN 108668290B
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data
wifi
parallel
amount
working time
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CN108668290A (en
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梅锐
梁宏
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/22—Traffic simulation tools or models
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information

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

Abstract

A method and apparatus for receiving data in parallel. The method comprises the following steps: periodically acquiring the data volume to be sent of WiFi; periodically judging whether a parallel receiving function is started or not according to the data volume to be sent of the WiFi; when the parallel receiving function is started in the current period, distributing working time slices for WiFi and BT according to a preset first proportion, wherein the preset first proportion is the working time slice of WiFi/the working time slice of BT; when the parallel receiving function is closed in the current period, working time slices are distributed to WiFi and BT according to a preset second proportion, the preset second proportion is the working time slice of WiFi/the working time slice of BT, and the preset first proportion is larger than the preset second proportion. By applying the method, the data can be received in parallel, and the time slot utilization rate is improved.

Description

Method and device for receiving data in parallel
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a method and a device for receiving data in parallel.
Background
Most mobile terminal devices currently support BlueTooth (BT) and WiFi technologies, and many scenarios require that BT and WiFi can work simultaneously. Since both BT and WiFi operate in the 2.4G band, both operate simultaneously and interfere with each other. To avoid interference and reduce implementation cost, for a mobile terminal device, a mainstream implementation manner at present is that BT and WiFi share a Single Antenna (Single Antenna), and channels are multiplexed in a time division manner.
For the Transmit (TX) channel, when one is used, it is necessary to share the antenna resource exclusively, and the other cannot use the antenna. For the Receive (RX) channel, in order to improve the slot utilization efficiency, a function of receiving BT and WiFi data simultaneously may be implemented in hardware, for example, when WiFi receives data, BT is allowed to listen to the reception, and this function is called parallel reception (current RX). In the current literature, for the parallel receiving function, a fixed on/off implementation scheme is adopted. If the parallel receiving function is started, the BT and WiFi data are allowed to be received simultaneously. If the parallel reception function is turned off, simultaneous reception of BT and WiFi data is not allowed, i.e., if one party receives data, the other party cannot receive data simultaneously.
In practical application, the parallel receiving function is fixedly started, when one side sends more data, antenna resources are required to be shared independently, and the parallel receiving function of the other side is difficult to realize.
Disclosure of Invention
The embodiment of the invention solves the technical problem of how to receive data in parallel and improve the utilization rate of the time slot.
To solve the foregoing technical problem, an embodiment of the present invention provides a method for receiving data in parallel, including: periodically acquiring the data volume to be sent of WiFi; periodically judging whether a parallel receiving function is started or not according to the data volume to be sent of the WiFi; when the parallel receiving function is started in the current period, distributing working time slices for WiFi and BT according to a preset first proportion, wherein the preset first proportion is the working time slice of WiFi/the working time slice of BT; when the parallel receiving function is closed in the current period, working time slices are distributed to WiFi and BT according to a preset second proportion, the preset second proportion is the working time slice of WiFi/the working time slice of BT, and the preset first proportion is larger than the preset second proportion.
Optionally, the data amount to be sent includes: the sum of the amount of data buffered in the buffer unit and the amount of data that may be sent in the current cycle.
Optionally, the acquiring the data amount to be sent by the WiFi includes: and predicting the data quantity which is possibly transmitted in the current period based on the statistical information of the transmitted data quantity.
Optionally, the acquiring the data amount to be sent by the WiFi includes: and acquiring the data volume which can be transmitted in the current period based on the indication information which is transmitted by the upper layer and contains the data volume which can be transmitted in the current period.
Optionally, the amount of data to be sent by the WiFi includes: an amount of urgent data and an amount of non-urgent data.
Optionally, the determining whether to start the parallel receiving function according to the amount of data to be sent by the WiFi includes: and when the emergency data volume is not zero or the non-emergency data volume is greater than or equal to a preset threshold, closing the parallel receiving function in the current period.
Optionally, the determining whether to start the parallel receiving function according to the amount of data to be sent by the WiFi includes: and when the emergency data volume is zero and the non-emergency data volume is smaller than a preset threshold, starting a parallel receiving function in the current period.
Optionally, when the parallel receiving function is started in the current cycle, the method further includes: in the working time slice of the WiFi, the WiFi sending function is closed, data to be sent of the WiFi are stored in the cache unit, and meanwhile WiFi data and BT scanning message data are received.
Optionally, when the parallel receiving function is started in the current cycle, the method further includes: and transmitting the BT data during the working time slice of the BT, and simultaneously receiving only the BT data except the scanning type message.
To solve the foregoing technical problem, an embodiment of the present invention provides an apparatus for receiving data in parallel, including: the acquisition unit is suitable for periodically acquiring the data volume to be sent by the WiFi; the judgment unit is suitable for periodically judging whether the parallel receiving function is started or not according to the data volume to be sent of the WiFi; the first allocation unit is suitable for allocating working time slices for WiFi and BT according to a preset first proportion when the parallel receiving function is started in the current period, wherein the preset first proportion is the working time slice of WiFi/the working time slice of BT; the second allocating unit is adapted to allocate the working time slices for the WiFi and the BT according to a preset second ratio when the parallel receiving function is turned off in the current period, where the preset second ratio is the working time slice of the WiFi/the working time slice of the BT, and the preset first ratio is greater than the preset second ratio.
Optionally, the data amount to be sent includes: the sum of the amount of data buffered in the buffer unit and the amount of data that may be sent in the current cycle.
Optionally, the obtaining unit is adapted to obtain the data amount that may be sent in the current period based on statistical information prediction of the sent data amount.
Optionally, the obtaining unit is adapted to obtain the data volume that may be sent in the current period based on indication information that is sent by an upper layer and contains the data volume that may be sent in the current period.
Optionally, the amount of data to be sent by the WiFi includes: an urgent data volume and a non-urgent volume.
Optionally, the determining unit is adapted to close the parallel receiving function in the current period when the urgent data amount is not zero or when the non-urgent data amount is greater than or equal to a preset threshold.
Optionally, the determining unit is adapted to start the parallel receiving function in the current period when the emergency data amount is zero and the non-emergency data amount is smaller than a preset threshold.
Optionally, the apparatus for receiving data in parallel further includes: and the first processing unit is suitable for closing the WiFi sending function in the WiFi working time slice, storing data to be sent by the WiFi in the cache unit, and receiving WiFi data and BT scanning message data at the same time.
Optionally, the apparatus for receiving data in parallel further includes: and the second processing unit is suitable for transmitting the BT data in the working time slice of the BT when the parallel receiving function is started in the current period, and simultaneously only receiving the BT data except the scanning type message.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
by adopting the scheme, the data volume to be sent of the WiFi is periodically acquired, the parallel receiving function is started according to the data volume to be sent of the WiFi, the BT and WiFi data are allowed to be received at the same time, and the time slot utilization rate can be improved.
Furthermore, the data volume which is possibly sent in the current period is predicted, so that the situation that the parallel receiving function cannot be used due to more sent data in the current period can be avoided, and the utilization rate of the time slot is further improved.
Further, when the emergency data amount does not exist in the data amount to be sent of the WiFi and the non-emergency data amount is small, the parallel receiving function is started, the WiFi and BT data are received at the same time, and the time slot utilization efficiency is improved; and when the emergency data volume or the non-emergency data volume exists in the data volume to be sent by the WiFi, the parallel receiving function is closed, and the normal transmission of the WiFi data and the BT data is ensured.
Further, when the parallel receiving function is started, in the working time slice of the WiFi, the WiFi data and the BT scanning message data are allowed to be received simultaneously, and the time slot utilization rate can be improved.
Drawings
Fig. 1 is a flowchart of a method for receiving data in parallel according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for determining whether to start a parallel receiving function based on a data amount to be sent by WiFi according to an embodiment of the present invention;
fig. 3 is a schematic diagram of WiFi active time slices and BT active time slices for activating and deactivating a parallel receiving function according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a parallel receiving apparatus according to an embodiment of the present invention.
Detailed Description
In the existing product, the parallel receiving function is fixedly started, when one side sends more data, antenna resources are required to be shared independently, and the parallel receiving function of the other side is difficult to realize.
In order to solve the above problem, the embodiment of the present invention dynamically starts the parallel receiving function according to the amount of data to be sent by WiFi, allows BT and WiFi data to be received simultaneously, and can improve the utilization rate of the timeslot.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, an embodiment of the present invention provides a method for receiving data in parallel, where in a specific implementation, the method may include the following steps:
s101, periodically acquiring the data volume to be sent by the WiFi.
In a specific implementation, the amount of data to be sent by WiFi may include two parts: the amount of data buffered in the buffer unit and the amount of data that may be sent in the current cycle.
In a specific implementation, the amount of data that may be transmitted in the current period may be predicted based on statistical information of the amount of data that has been transmitted. The prediction method can be a plurality of prediction methods such as a moving arithmetic mean algorithm, an exponential moving average algorithm and the like.
In a specific implementation, the data amount that may be sent in the current period may also be obtained based on indication information that is sent by an upper layer and includes the data amount that may be sent in the current period.
S102, periodically judging whether a parallel receiving function is started or not according to the data volume to be sent by the WiFi, if so, executing a step S103, otherwise, executing a step S104.
In a specific implementation, the data to be sent by the WiFi may include: urgent data and non-urgent data, i.e. data can be set with different priorities according to importance, real-time requirements, etc. For example, data with higher priority is regarded as urgent data, and data with lower priority is regarded as non-urgent data. The user can also classify the data to be sent by adopting other standards according to the needs, and respectively count the data volume to be sent according to different data types.
In an embodiment of the present invention, when the amount of urgent data in WiFi data to be sent is zero and the amount of non-urgent data is less than a preset threshold, a parallel receiving function is started, and WiFi data and BT data are received at the same time, so that the utilization efficiency of a time slot is improved; and when the emergency data volume in the data to be transmitted by the WiFi is not zero or the non-emergency data volume is more than or equal to a preset threshold, closing the parallel receiving function and ensuring the normal transmission of the WiFi data and the BT data.
S103, when the parallel receiving function is started in the current period, working time slices are allocated to WiFi and BT according to a preset first proportion, and the preset first proportion is the working time slice of WiFi/the working time slice of BT.
When the parallel receiving function is started, WiFi data and BT scanning type message data are received in the WiFi working time slice at the same time, and only BT data except the scanning type message data are received in the BT working time slice, so that the time slot utilization rate can be improved.
And S104, when the parallel receiving function is closed in the current period, allocating working time slices for WiFi and BT according to a preset second proportion, wherein the preset second proportion is the working time slice of WiFi/the working time slice of BT, and the preset first proportion is larger than the preset second proportion.
By applying the scheme, the parallel receiving function can be dynamically started according to the data volume to be sent by the WiFi, the BT and WiFi data are allowed to be received simultaneously, and the time slot utilization rate is improved.
In order to make those skilled in the art better understand and implement the present invention, a detailed description is given below of a specific process for determining whether to start the parallel receiving function according to the amount of data to be transmitted by WiFi according to an embodiment.
As shown in fig. 2, the determining whether to start the parallel receiving function according to the amount of data to be transmitted by the WiFi may include the following steps:
s201, dividing data to be transmitted into: urgent data and non-urgent data.
In a specific implementation, the priority may be obtained based on signaling sent by an upper layer, or may be preset. For example, the signaling data is set as urgent data, and the other data is non-urgent data.
S202, judging whether the emergency data volume is zero, if so, executing the step S203; if not, step S205 is performed.
When the emergency data amount is not zero, the parallel receiving function needs to be closed, so that normal sending of the emergency data is ensured.
S203, judging whether the non-emergency number is smaller than a preset threshold, if so, executing a step S204; if not, step S205 is performed.
When the amount of the non-emergency data is excessive, the parallel receiving function needs to be closed, and normal sending of the non-emergency data is guaranteed.
And S204, starting a parallel receiving function in the current period.
And S205, closing the parallel receiving function in the current period.
By applying the scheme, when the emergency data volume in the data to be sent by the WiFi is zero and the non-emergency data volume is smaller than a preset threshold, the parallel receiving function is started, and the time slot utilization efficiency is improved; and when the emergency data volume in the data to be transmitted by the WiFi is not zero or the non-emergency data volume is more than or equal to a preset threshold, closing the parallel receiving function and ensuring the normal transmission of the WiFi data and the BT data.
In order to make the present invention better understood and implemented by those skilled in the art, the WiFi active time slice and the BT active time slice are described in detail below through an embodiment.
In one embodiment of the present invention, as shown in FIG. 3, where TBTIs the BT work time slice, TWiFiThe WiFi working time slice.
At TNIn the cycle, when the parallel reception function is turned off, BT data is transmitted and BT data (i.e., BT scan class + non-scan class) is received in the BT active slot 31. Within the WiFi on-time slice 32, WiFi data is transmitted and received.
At TN+1In the cycle, when the parallel reception function is started, the BT data is transmitted while only the BT data other than the scan class message (i.e., the BT non-scan class) is received in the active slot 33 of the BT. In the WiFi working time slice 34, the WiFi sending function is turned off, the data to be sent by the WiFi is stored in the cache unit, and meanwhile, the WiFi data and the BT scan type message (i.e. BT scan type) data are received.
By applying the scheme, when the parallel receiving function is started, WiFi data and BT scanning message data are received in the WiFi working time slice at the same time, so that the time slot utilization rate can be improved.
In order to make those skilled in the art better understand and implement the present invention, the embodiment of the present invention further provides a device corresponding to the method for implementing parallel data reception in the foregoing embodiment, which is described in detail below with reference to the accompanying drawings.
The apparatus 40 for receiving data in parallel as shown in fig. 4 may include: the acquiring unit 41, the determining unit 42, the first allocating unit 43, and the second allocating unit 44 include:
the obtaining unit 41 is adapted to periodically obtain the data amount to be sent by the WiFi.
The determining unit 42 is adapted to periodically determine whether to start the parallel receiving function according to the amount of data to be sent by the WiFi.
The first allocating unit 43 is adapted to allocate the working time slices for WiFi and BT according to a preset first ratio when the parallel receiving function is started in the current period, where the preset first ratio is the working time slice of WiFi/the working time slice of BT.
The second allocating unit 44 is adapted to allocate the working time slices for the WiFi and the BT according to a preset second ratio when the parallel receiving function is turned off in the current period, where the preset second ratio is the working time slice of the WiFi/the working time slice of the BT, and the preset first ratio is greater than the preset second ratio.
In a specific implementation, the amount of data to be sent may include: the sum of the amount of data buffered in the buffer unit and the amount of data that may be sent in the current cycle.
In a specific implementation, the obtaining unit 41 may be adapted to predict, based on statistical information of the amount of data that has been sent, the amount of data that may be sent in the current period.
In a specific implementation, the obtaining unit 41 may be adapted to obtain the data amount that may be transmitted in the current period based on indication information that is transmitted by an upper layer and includes the data amount that may be transmitted in the current period.
In a specific implementation, the amount of data to be sent by the WiFi may include: an urgent data volume and a non-urgent volume.
In a specific implementation, the determining unit 42 is adapted to turn off the parallel receiving function in the current period when the urgent data amount is not zero or the non-urgent data amount is greater than or equal to a preset threshold.
In a specific implementation, the determining unit 42 is adapted to start the parallel receiving function in the current period when the urgent data amount is zero and the non-urgent data amount is smaller than a preset threshold.
In a specific implementation, the apparatus 40 for receiving data in parallel further includes: and the first processing unit 45 is adapted to, when the parallel receiving function is started in the current period, turn off the WiFi sending function within the working time slice of the WiFi, store data to be sent by the WiFi in the cache unit, and receive WiFi data and BT scan type message data at the same time.
In a specific implementation, the apparatus 40 for receiving data in parallel further includes: and a second processing unit 46 adapted to transmit the BT data while receiving only the BT data other than the scan class message within the active time slice of the BT when the parallel reception function is activated in the current cycle.
By applying the device, the parallel receiving function can be dynamically started according to the data volume to be sent by the WiFi, the BT and WiFi data are allowed to be received simultaneously, and the time slot utilization rate is improved.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (18)

1. A method of receiving data in parallel, comprising:
periodically acquiring the data volume to be sent of WiFi;
periodically judging whether a parallel receiving function is started or not according to the data volume to be sent of the WiFi;
when the parallel receiving function is started in the current period, distributing working time slices for WiFi and BT according to a preset first proportion, wherein the preset first proportion is the working time slice of WiFi/the working time slice of BT;
when the parallel receiving function is closed in the current period, working time slices are distributed to WiFi and BT according to a preset second proportion, the preset second proportion is the working time slice of WiFi/the working time slice of BT, and the preset first proportion is larger than the preset second proportion.
2. The method of claim 1, wherein the amount of data to be transmitted comprises: the amount of data buffered in the buffer unit and the amount of data that may be sent in the current cycle.
3. The method for receiving data in parallel according to claim 2, wherein the obtaining the amount of data to be transmitted by WiFi includes:
and predicting the data quantity which is possibly transmitted in the current period based on the statistical information of the transmitted data quantity.
4. The method for receiving data in parallel according to claim 2, wherein the obtaining the amount of data to be transmitted by WiFi includes:
and acquiring the data volume which can be transmitted in the current period based on the indication information which is transmitted by the upper layer and contains the data volume which can be transmitted in the current period.
5. The method of claim 1, wherein the amount of data to be sent by the WiFi comprises: an amount of urgent data and an amount of non-urgent data.
6. The method of claim 5, wherein the determining whether to start a parallel receiving function according to the amount of data to be transmitted by the WiFi includes:
and when the emergency data volume is not zero or the non-emergency data volume is greater than or equal to a preset threshold, closing the parallel receiving function in the current period.
7. The method for receiving data in parallel according to claim 5 or 6, wherein the determining whether to start the parallel receiving function according to the amount of data to be transmitted by the WiFi includes:
and when the emergency data volume is zero and the non-emergency data volume is smaller than a preset threshold, starting a parallel receiving function in the current period.
8. The method for receiving data in parallel according to claim 1, wherein when the parallel receiving function is started in the current cycle, the method further comprises:
in the working time slice of the WiFi, the WiFi sending function is closed, data to be sent of the WiFi are stored in the cache unit, and meanwhile WiFi data and BT scanning message data are received.
9. The method for receiving data in parallel according to claim 8, wherein when the parallel receiving function is started in the current cycle, the method further comprises:
and transmitting the BT data during the working time slice of the BT, and simultaneously receiving only the BT data except the scanning type message.
10. An apparatus for receiving data in parallel, comprising:
the acquisition unit is suitable for periodically acquiring the data volume to be sent by the WiFi;
the judgment unit is suitable for periodically judging whether the parallel receiving function is started or not according to the data volume to be sent of the WiFi;
the first allocation unit is suitable for allocating working time slices for WiFi and BT according to a preset first proportion when the parallel receiving function is started in the current period, wherein the preset first proportion is the working time slice of WiFi/the working time slice of BT;
the second allocating unit is adapted to allocate the working time slices for the WiFi and the BT according to a preset second ratio when the parallel receiving function is turned off in the current period, where the preset second ratio is the working time slice of the WiFi/the working time slice of the BT, and the preset first ratio is greater than the preset second ratio.
11. The apparatus for receiving data in parallel according to claim 10, wherein the amount of data to be transmitted comprises: the amount of data buffered in the buffer unit and the amount of data that may be sent in the current cycle.
12. The apparatus for receiving data in parallel according to claim 11, wherein the obtaining unit is adapted to obtain the data amount that is possibly transmitted in the current period based on statistical information prediction of the transmitted data amount.
13. The apparatus for receiving data in parallel according to claim 11, wherein the obtaining unit is adapted to obtain the amount of data that can be transmitted in the current period based on indication information sent by an upper layer and containing the amount of data that can be transmitted in the current period.
14. The apparatus for receiving data in parallel according to claim 10,
the amount of data to be sent by the WiFi includes: an urgent data volume and a non-urgent volume.
15. The apparatus for receiving data in parallel according to claim 14, wherein the determining unit is adapted to turn off the parallel receiving function in the current cycle when the urgent data amount is not zero or when the non-urgent data amount is greater than or equal to a preset threshold.
16. The apparatus for receiving data in parallel according to claim 14 or 15, wherein the determining unit is adapted to start the parallel receiving function in the current cycle when the urgent data amount is zero and the non-urgent data amount is less than a preset threshold.
17. The apparatus for receiving data in parallel according to claim 10, further comprising:
and the first processing unit is suitable for closing the WiFi sending function in the WiFi working time slice, storing data to be sent by the WiFi in the cache unit, and receiving WiFi data and BT scanning message data at the same time.
18. The apparatus for receiving data in parallel according to claim 17, further comprising:
and the second processing unit is suitable for transmitting the BT data in the working time slice of the BT when the parallel receiving function is started in the current period, and simultaneously only receiving the BT data except the scanning type message.
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Wi_Fi和Bluetooth在手机上和谐共存方案的研究与设计;魏松鹤;《中国优秀硕士学位论文全文数据库 信息科技辑（月刊）》;20141015;全文 *
蓝牙与WiFi共存性研究;陈友平;《CNKI 科技风》;20090425;99 *

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