CN106954241B - Method and device for switching number of receiving antennas in multi-antenna terminal - Google Patents
Method and device for switching number of receiving antennas in multi-antenna terminal Download PDFInfo
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- CN106954241B CN106954241B CN201610007313.9A CN201610007313A CN106954241B CN 106954241 B CN106954241 B CN 106954241B CN 201610007313 A CN201610007313 A CN 201610007313A CN 106954241 B CN106954241 B CN 106954241B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The embodiment of the invention discloses a method for switching the number of receiving antennas in a multi-antenna terminal, which comprises the following steps: determining the number of receiving antennas adopted by the terminal at corresponding time according to the downlink data volume information and the channel condition information; and sending a first network signaling to the terminal according to the determined number of the receiving antennas adopted by the terminal at the corresponding time, wherein the first network signaling is used for indicating the number of the receiving antennas adopted by the terminal at the corresponding time. The embodiment of the invention also discloses a switching device for the number of the receiving antennas in the multi-antenna terminal.
Description
Technical Field
The present invention relates to antenna technologies in the field of wireless communications, and in particular, to a method and an apparatus for switching the number of receiving antennas in a multi-antenna terminal.
Background
Currently, a two-antenna reception mode is mostly adopted for a terminal, and a multi-antenna reception terminal (i.e., a terminal with more than two antennas) is being widely researched to improve communication quality. The terminal adopts a multi-antenna receiving mode, so that higher diversity gain and multiplexing gain can be provided, the sensitivity of the receiver can be enhanced, and the improvement of the throughput rate of users and cells is facilitated.
However, if the terminal is always in the multi-antenna receiving mode, in the scenario that the downlink load is small or the channel condition information is good, the terminal using the multi-antenna receiving mode has a less obvious gain effect but generates a larger power consumption compared with the terminal using the two-antenna receiving mode.
Disclosure of Invention
In view of this, embodiments of the present invention are to provide a method and an apparatus for switching the number of receiving antennas in a multi-antenna terminal, which can achieve both network performance and energy saving effect.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method for switching the number of receiving antennas in a multi-antenna terminal, the method comprising:
determining the number of receiving antennas adopted by the terminal at corresponding time according to the downlink data volume information and the channel condition information;
and sending a first network signaling to the terminal according to the determined number of the receiving antennas adopted by the terminal at the corresponding time, wherein the first network signaling is used for indicating the number of the receiving antennas adopted by the terminal at the corresponding time.
In the foregoing solution, the first network signaling includes: at least one time period and the number of receiving antennas used by the terminal in the time period.
In the foregoing solution, before sending the first network signaling to the terminal, the method further includes:
sending a second network signaling to the terminal, wherein the second network signaling is used for notifying that the switching of the number of the receiving antennas in the terminal is controlled in a semi-static mode;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication.
In the foregoing scheme, the first network signaling further includes a validity period, where the validity period is used to indicate a valid time of the first network signaling.
In the foregoing solution, the sending the first network signaling to the terminal includes:
sending a first network signaling to the terminal in a broadcast mode or an exclusive mode;
when a first network signaling is sent to the terminal in an exclusive mode, determining the number of receiving antennas adopted by the terminal at a corresponding time according to the downlink data volume information and the channel condition information includes:
acquiring the number of receiving antennas supported by the terminal according to a terminal capability indication signaling or channel rank indication information RI reported by the terminal; and determining the number of the receiving antennas supported by the terminal adopted by the terminal at the corresponding time according to the number of the receiving antennas supported by the terminal, the downlink data volume information corresponding to the terminal and the channel condition information.
In the foregoing solution, before determining the number of receiving antennas used by the terminal at a corresponding time according to the downlink data amount information and the channel condition information, the method further includes:
receiving a third network signaling reported by a terminal, wherein the third network signaling comprises one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
correspondingly, the determining the number of receiving antennas used by the terminal at the corresponding time according to the downlink data amount information and the channel condition information includes: and determining the number of receiving antennas adopted by the terminal at the corresponding time according to the third network signaling reported by the terminal, the downlink data volume information corresponding to the terminal and the channel condition information.
A method for switching the number of receiving antennas in a multi-antenna terminal, the method comprising:
receiving a first network signaling sent by a network side device, wherein the first network signaling is used for indicating the number of receiving antennas adopted by the terminal at corresponding time;
and switching to the corresponding number of the receiving antennas at the corresponding moment according to the first network signaling.
In the foregoing solution, the first network signaling includes: at least one time period and the number of receiving antennas adopted by the terminal in the time period; the switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling includes:
and adopting the number of the receiving antennas adopted by the terminal in the time period indicated by the first network signaling in the time period.
In the foregoing solution, before the receiving the first network signaling sent by the network side device, the method includes:
receiving a second network signaling sent by a network side device, wherein the second network signaling is used for notifying the switching of the number of receiving antennas in a semi-static mode control terminal;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication; the switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling includes:
switching to a first number of receive antennas upon receiving a first receive antenna mode activation indication; alternatively, the second number of receive antennas is switched to upon receiving the first receive antenna mode deactivation indication.
In the above scheme, the first network signaling further includes a validity period; the switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling includes:
switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling in the validity period carried by the first network signaling;
and autonomously determining the number of the receiving antennas switched to the corresponding time outside the validity period carried by the first network signaling.
In the foregoing solution, before receiving a first network signaling sent by a network side device, the method further includes:
reporting a terminal capability indication signaling or channel rank indication information RI to a network side device;
or reporting a third network signaling to a network side device, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum.
In the foregoing solution, after receiving a first network signaling sent by a network side device, the method further includes:
when the first network signaling is switched to the corresponding number of receiving antennas at the corresponding time, reporting a third network signaling to network side equipment, wherein the third network signaling comprises one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
or refusing to execute the first network signaling and initiating the reconstruction of the Radio Resource Control (RRC) connection.
A network-side device, the network-side device comprising:
a determining unit, configured to determine, according to the downlink data amount information and the channel condition information, the number of receiving antennas used by the terminal at a corresponding time;
a first sending unit, configured to send a first network signaling to the terminal according to the number of receiving antennas used by the terminal at the corresponding time, which is determined by the determining unit, where the first network signaling is used to indicate the number of receiving antennas used by the terminal at the corresponding time.
In the foregoing solution, the first network signaling includes: at least one time period and the number of receiving antennas used by the terminal in the time period.
In the foregoing solution, the first sending unit is further configured to send a second network signaling to the terminal before sending the first network signaling to the terminal, where the second network signaling is used to notify that switching of the number of receiving antennas in the terminal is to be controlled in a semi-static manner;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication.
In the foregoing scheme, the first network signaling further includes a validity period, where the validity period is used to indicate a valid time of the first network signaling.
In the foregoing scheme, the first sending unit is specifically configured to send a first network signaling to the terminal in a broadcast manner or an exclusive manner;
the determining unit is specifically configured to acquire the number of receiving antennas supported by the terminal according to a terminal capability indication signaling or channel rank indication information RI reported by the terminal when the first sending unit sends the first network signaling to the terminal in an exclusive manner; and determining the number of the receiving antennas supported by the terminal adopted by the terminal at the corresponding time according to the number of the receiving antennas supported by the terminal, the downlink data volume information corresponding to the terminal and the channel condition information.
In the foregoing solution, the network side device further includes: a first receiving unit, wherein,
the first receiving unit is configured to receive a third network signaling reported by a terminal, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
correspondingly, the determining unit is specifically configured to determine, according to the third network signaling received by the first receiving unit, the downlink data amount information and the channel condition information corresponding to the terminal, the number of receiving antennas used by the terminal at the corresponding time.
A terminal, the terminal comprising:
a second receiving unit, configured to receive a first network signaling sent by a network side device, where the first network signaling is used to indicate a number of receiving antennas used by the terminal at a corresponding time;
and the switching unit is used for switching to the corresponding number of the receiving antennas at the corresponding moment according to the first network signaling received by the second receiving unit.
In the foregoing solution, the first network signaling includes: at least one time period and the number of receiving antennas adopted by the terminal in the time period;
the switching unit is specifically configured to use, in the time period, the number of receiving antennas used by the terminal in the time period indicated by the first network signaling received by the second receiving unit.
In the above scheme, the second receiving unit is further configured to receive a second network signaling sent by a network side device, where the second network signaling is used to notify that switching of the number of receiving antennas in the terminal is controlled in a semi-static manner;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication;
the switching unit is specifically configured to switch to the first number of receiving antennas when the second receiving unit receives the first receiving antenna mode activation instruction; or, when the second receiving unit receives the first receiving antenna mode deactivation indication, the second receiving unit switches to the second receiving antenna number.
In the above scheme, the first network signaling further includes a validity period;
the switching unit is specifically configured to switch to the corresponding number of receiving antennas at the corresponding time according to the first network signaling in an effective period carried by the first network signaling; and autonomously determining the number of the receiving antennas switched to the corresponding time outside the validity period carried by the first network signaling.
In the above scheme, the terminal further includes a second sending unit, wherein,
the second sending unit is configured to report a terminal capability indication signaling or channel rank indication information RI to the network side device; or reporting a third network signaling to a network side device, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum.
In the above solution, the terminal further includes a second sending unit and a connection reestablishment unit, wherein,
the second sending unit is configured to report a third network signaling to the network side device when the switching unit switches to the corresponding number of receiving antennas at the corresponding time according to the first network signaling, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
and the connection reestablishment unit is used for refusing to execute the first network signaling and initiating the RRC connection reestablishment after the second receiving unit receives the first network signaling.
The embodiment of the invention provides a method and a device for switching the number of receiving antennas in a multi-antenna terminal, wherein network side equipment determines the number of the receiving antennas which should be adopted by the terminal at corresponding time according to downlink data volume information and channel condition information; and accordingly, a first network signaling is sent to the terminal to indicate the terminal to switch the number of various receiving antennas at corresponding time. Therefore, the network side equipment controls the switching of the number of the receiving antennas in the terminal according to the transmission condition, the network performance and the energy-saving effect can be considered, and the terminal cannot be always in multi-antenna receiving or two-antenna receiving. In addition, the embodiment of the invention can control the switching of the number of the receiving antennas in the terminal only through the first network signaling, thereby saving the signaling overhead.
Drawings
Fig. 1 is a schematic flowchart of a method for switching the number of receiving antennas in a multi-antenna terminal applied to a network side device according to embodiment 1 of the present invention;
fig. 2 is a schematic flowchart of a method for switching the number of receiving antennas in a multi-antenna terminal applied to a terminal according to embodiment 1 of the present invention;
fig. 3 is a flowchart illustrating a method for switching the number of receiving antennas in a multi-antenna terminal according to embodiment 2 of the present invention;
fig. 4 is a flowchart illustrating another method for switching the number of receiving antennas in a multi-antenna terminal according to embodiment 2 of the present invention;
fig. 5 is a flowchart illustrating another method for switching the number of receiving antennas in a multi-antenna terminal according to embodiment 2 of the present invention;
fig. 6 is a flowchart illustrating another method for switching the number of receiving antennas in a multi-antenna terminal according to embodiment 2 of the present invention;
fig. 7 is a block diagram of a network-side device according to embodiment 3 of the present invention;
fig. 8 is a block diagram of a terminal according to embodiment 3 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
An embodiment of the present invention provides a method for switching the number of receiving antennas in a multi-antenna terminal, which is applied to a network side device, and as shown in fig. 1, a processing flow of the method of this embodiment includes the following steps:
The number of receiving antennas in the terminal can be various, such as two-antenna receiving, four-antenna receiving, eight-antenna receiving and the like, if the terminal adopts four-antenna receiving or eight-antenna receiving, higher diversity gain and multiplexing gain can be provided, the sensitivity of the receiver is enhanced, the improvement of the throughput rate of users and cells is facilitated, but the power consumption is larger. In a scenario where the downlink load is small or the channel condition information is good, the terminal receives with four antennas or more antennas, but the gain effect is not obvious, but larger power consumption is generated compared with a case where a two-antenna receiving mode is adopted. Therefore, the energy-saving effect and the network performance are comprehensively considered, and the number of the receiving antennas needs to be switched by the terminal according to the actual situation.
In the method of the embodiment, the terminal lacks information of downlink data volume information, so that the switching of different receiving antenna numbers in the terminal is controlled by the network side equipment. The network side equipment can determine the number of receiving antennas adopted by the terminal at corresponding time through information such as downlink data volume information, channel condition information and the like. For example, when a network side device such as a base station detects that downlink data amount information issued to a terminal is less and channel condition information is good, it may determine that the terminal needs to be controlled to receive using two antennas, and when it detects that the downlink data amount information issued to the terminal is more and the channel condition information is not good, it may determine that the terminal needs to be controlled to receive using four antennas.
And 102, sending a first network signaling to the terminal according to the determined number of the receiving antennas adopted by the terminal at the corresponding time.
After determining the number of receiving antennas used by the terminal at a corresponding time, the network side device may send a first network signaling to the terminal accordingly, where the first network signaling is used to instruct the terminal to perform switching of various numbers of receiving antennas at a corresponding time. Therefore, after receiving the first network signaling, the terminal can switch the number of various receiving antennas at corresponding time.
An embodiment of the present invention further provides a method for switching the number of receiving antennas in a multi-antenna terminal, which is applied to a network side device, and as shown in fig. 2, a processing flow of the method of this embodiment includes the following steps:
The first network signaling is used for indicating the number of receiving antennas adopted by the terminal at the corresponding time.
After receiving the first network signaling, the terminal may switch to the corresponding number of receiving antennas at the corresponding time according to the indication of the first network signaling.
The method realizes the aim of giving consideration to both network performance and green energy conservation by controlling the switching among the number of various receiving antennas in the terminal through the network side equipment.
Examples 2,
An embodiment of the present invention provides a method for switching the number of receiving antennas in a multi-antenna terminal, as shown in fig. 3, a processing flow of the method of the present embodiment includes the following steps:
The network side equipment can comprehensively consider the network performance and the energy-saving effect according to the downlink data volume information and the channel condition information, and predetermine the number of receiving antennas adopted by the terminal at the corresponding time; the method of this embodiment is described by taking the number of receiving antennas supported by the terminal as two antennas and four antennas as an example. Illustratively, when the network side device determines in advance that the amount of downlink data to be sent to the terminal is small and the channel condition is good, the control terminal receives the downlink data by using two antennas, and when the amount of downlink data to be sent to the terminal is large and the channel condition is not good, the control terminal receives the downlink data by using four antennas; therefore, the network side equipment can determine the expected downlink data volume information and the channel condition information in advance, and the terminal adopts two-antenna receiving or four-antenna receiving at the corresponding time.
The network side device may send a first network signaling to the terminal according to the number of receiving antennas used by the terminal at the corresponding time, which is determined in step 301 and is expected to be pre-determined by the network side device, where the first network signaling includes: at least one and the number of receiving antennas used by the terminal in the time period. Illustratively, the first network signaling comprises: the first time period T-T +20ms corresponds to the terminal adopting four-antenna reception, and the second time period T +21ms-T +50ms corresponds to the terminal adopting two-antenna reception.
By applying the first network signaling of the above example, the network side device may configure the number of receiving antennas used by the terminal in each time period for a long time.
After receiving the first network signaling, according to the first network signaling of the above example, the terminal switches to the four-antenna mode at time T, and adopts four antennas adopted by the terminal in the first time period indicated in the first network signaling within a first time period of T-T +20 ms; and switching to two antennas at the time T +21ms, and adopting the two antennas adopted by the terminal in the second time period indicated in the first network signaling in the second time period T +21ms-T +50 ms.
It should be noted here that if the terminal receives new first network signaling during the execution of the first network signaling, the terminal starts executing according to the new first network signaling.
An embodiment of the present invention further provides a method for switching the number of receiving antennas in a multi-antenna terminal, as shown in fig. 4, a processing flow of the method of this embodiment includes the following steps:
The terminal receives the second network signaling, recognizes that the network side equipment needs to adopt a semi-static mode to control the switching of the number of various receiving antennas in the terminal, and then the terminal starts to monitor the received activation indication or deactivation indication.
The first network signaling comprises: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication.
For example, the first receiving antenna mode is receiving by using two antennas, the second receiving antenna mode is receiving by using four antennas, and the network side device may send the first network signaling to the terminal when detecting that the amount of downlink data sent to the terminal is small and the channel condition is good: and two-antenna mode activation indication, when detecting that the downlink data volume sent to the terminal is large and the channel condition is not good, sending a first network signaling to the terminal: two antenna mode deactivation indication.
The terminal starts two-antenna receiving when receiving the two-antenna mode activation instruction, starts monitoring the deactivation instruction, switches to four-antenna receiving when receiving the two-antenna mode deactivation instruction, then starts monitoring the activation instruction, and switches to two-antenna receiving when receiving the two-antenna mode activation instruction. Thus, the terminal can be controlled to switch the number of receiving antennas by activating or deactivating the instruction.
Of course, the first network signaling may also be a four-antenna mode activation instruction or a four-antenna mode deactivation instruction, so that the terminal starts four-antenna reception and starts monitoring the four-antenna mode deactivation instruction when receiving the four-antenna mode activation instruction, switches to two-antenna reception and starts monitoring the four-antenna mode activation instruction when receiving the four-antenna mode deactivation instruction, and switches to four-antenna reception when receiving the four-antenna mode activation instruction.
An embodiment of the present invention further provides a method for switching the number of receiving antennas in a multi-antenna terminal, as shown in fig. 5, a processing flow of the method of this embodiment includes the following steps:
The first network signaling is used for indicating the terminal to switch the number of various receiving antennas at corresponding time; the validity period is used to indicate a validity time of the first network signaling. The network side device is pre-stored with a validity period set, and the network side device can select one from the validity period set as the validity period of the first network signaling according to the downlink data volume and the channel condition. Illustratively, the validity period of the first network signaling is T-T +20ms, and the first network signaling indicates that the number of receiving antennas used by the terminal is two antennas.
And after receiving the first network signaling, the terminal starts a timer at the time T, wherein the time of the timer is the length of the validity period in the first network signaling. And in the valid period T-T +20ms, the terminal is switched to two antennas for receiving according to the first network signaling.
The first network signaling is invalid outside the validity period of the first network signaling, and at this time, the terminal may autonomously determine the number of receiving antennas to be used according to its own condition, for example, when the power of the terminal is less than a preset threshold, the terminal may autonomously determine to switch to two antennas, and so on.
If the terminal receives a new first network signaling within the validity period of the first network signaling, and the validity periods of the two signaling are overlapped, the terminal executes the new first network signaling within the overlapped validity period.
It should be noted that, the first network signaling may also be the signaling content in step 302 or 403 plus a validity period; and after receiving the first network signaling, the terminal switches to the corresponding number of receiving antennas at the corresponding time according to the first network signaling in the validity period carried by the first network signaling.
In the three methods described in fig. 3 to fig. 5, there are two methods for issuing the first network signaling: one is to send the first network signaling to all terminals in the cell by way of system broadcast. The terminal supporting various receiving antenna numbers and the terminal supporting only two antennas are not distinguished, and if the terminal supporting only two antennas receives the first network signaling, the terminal can directly discard the first network signaling. The other is an exclusive mode, and the first network signaling is issued to the terminal supporting multiple receiving antenna numbers through Radio Resource Control (RRC) signaling.
If the first network signaling is issued in an exclusive mode, the network side equipment needs to identify a terminal supporting multi-antenna reception before issuing, so that the terminal needs to perform capability reporting, and the network side equipment identifies whether the terminal supports various receiving antenna numbers according to the related capability information reported by the terminal. Optionally, the network side device obtains the number of receiving antennas supported by the terminal according to a terminal Capability indication signaling (e.g., MIMO-Capability DownLink signaling) reported by the terminal, or a channel Rank indication (RI, Rank Index).
Then, the network side may determine, according to the number of receiving antennas supported by the terminal, downlink data amount information corresponding to the terminal, and channel condition information, the number of receiving antennas supported by the terminal that is used by the terminal at a corresponding time. For example, if the network side knows that the terminal only supports two antenna modes, the network side does not issue a first network signaling to switch the number of receiving antennas; if the network side knows that the terminal supports two antennas and four antennas, the network side can send a first network signaling to control the terminal to switch the two antennas and the four antennas for receiving. Or, the network side device may also determine, according to information such as RI reported by the terminal, a number of receiving antennas currently used by the terminal, and if the number of receiving antennas currently used by the terminal meets an expectation of the network side device, the network side device may temporarily not issue the first network signaling, and if not, the network side device may issue the first network signaling to control the terminal to switch the number of receiving antennas.
It should be noted here that, after the terminal receives the first network signaling, if the content of the first network signaling is not in accordance with the terminal expectation, that is, the content carried in the first network signaling starts four-antenna reception from the beginning, but the terminal detects that the terminal has a small power amount and expects to adopt two-antenna reception, the terminal may have the following two options:
selecting one of the following steps: switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling, and reporting a third network signaling to a network side device when switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling, wherein the third network signaling comprises one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum. These parameters may be used to indicate the antenna mode that the terminal currently desires to support. Therefore, the network side can determine the switching time of various receiving antenna numbers supported by the terminal according to the antenna mode expected to be supported by the terminal at present and the information of the downlink data volume information and the channel condition information corresponding to the terminal.
Selecting two: the terminal refuses to execute the first network signaling and initiates RRC connection reconstruction; i.e. the terminal re-accesses the cell.
An embodiment of the present invention further provides a method for switching the number of receiving antennas in a multi-antenna terminal, as shown in fig. 6, a processing flow of the method of this embodiment includes the following steps:
The terminal can report a third network signaling to the network side equipment and inform the network side equipment of an antenna mode expected to be used by the network side equipment; the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum.
For example, if the number of receiving antennas expected by the terminal at present is two antennas and four antennas, the reporting, by the terminal, of the third network signaling to the network side device may be: the number of receiving antennas supported by the terminal is 4, the number of receiving antennas not supported by the terminal is 8, and the number of receiving antennas supported by the terminal is 4.
When determining the number of receiving antennas used by the terminal at a corresponding time, the network side device may comprehensively consider the number of receiving antennas expected by the terminal, and downlink data amount information and channel condition information corresponding to the terminal.
The first network signaling is used for indicating the terminal to switch the number of various receiving antennas at corresponding time.
The specific content of the first network signaling and the implementation procedure at the terminal side may refer to the description in fig. 3-5 above.
Example 3
An embodiment of the present invention further provides a network side device, and as shown in fig. 7, the network side device includes: a determining unit 701 and a first sending unit 702, wherein,
a determining unit 701, configured to determine, according to the downlink data amount information and the channel condition information, the number of receiving antennas used by the terminal at a corresponding time;
a first sending unit 702, configured to send a first network signaling to the terminal according to the number of receiving antennas used by the terminal at the corresponding time determined by the determining unit 701, where the first network signaling is used to indicate the number of receiving antennas used by the terminal at the corresponding time.
Optionally, the first network signaling includes: at least one time period and the number of receiving antennas used by the terminal in the time period.
Optionally, the first sending unit 702 is further configured to send, before sending the first network signaling to the terminal, a second network signaling to the terminal, where the second network signaling is used to notify that switching of the number of receiving antennas in the terminal is to be controlled in a semi-static manner;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication.
Optionally, the first network signaling further includes a validity period, where the validity period is used to indicate a validity time of the first network signaling.
Optionally, the first sending unit 702 is specifically configured to send a first network signaling to the terminal in a broadcast manner or an exclusive manner;
the determining unit 701 is specifically configured to acquire the number of receiving antennas supported by the terminal according to a terminal capability indication signaling or channel rank indication information RI reported by the terminal when the first sending unit 702 sends the first network signaling to the terminal in an exclusive manner; and determining the number of the receiving antennas supported by the terminal adopted by the terminal at the corresponding time according to the number of the receiving antennas supported by the terminal, the downlink data volume information corresponding to the terminal and the channel condition information.
Optionally, the network side device further includes: a first receiving unit 703, in which,
the first receiving unit 703 is configured to receive a third network signaling reported by a terminal, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
correspondingly, the determining unit 701 is specifically configured to determine, according to the third network signaling received by the first receiving unit 703, the downlink data amount information corresponding to the terminal, and the channel condition information, the number of receiving antennas used by the terminal at the corresponding time.
An embodiment of the present invention further provides a terminal, as shown in fig. 8, where the terminal includes: a second receiving unit 801 and a switching unit 802, wherein,
a second receiving unit 801, configured to receive a first network signaling sent by a network side device, where the first network signaling is used to indicate a number of receiving antennas used by the terminal at a corresponding time;
a switching unit 802, configured to switch to a corresponding number of receiving antennas at a corresponding time according to the first network signaling received by the second receiving unit 801.
Optionally, the first network signaling includes: at least one time period and the number of receiving antennas adopted by the terminal in the time period;
the switching unit 802 is specifically configured to use the number of receiving antennas used by the terminal in the time period indicated by the first network signaling received by the second receiving unit 801 in the time period.
Optionally, the second receiving unit 801 is further configured to receive a second network signaling sent by a network side device, where the second network signaling is used to notify that switching of the number of receiving antennas in the terminal is controlled in a semi-static manner;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication;
the switching unit 802 is specifically configured to switch to a first number of receiving antennas when the second receiving unit 801 receives a first receiving antenna mode activation instruction; alternatively, the second receiving unit 801 switches to the second number of receiving antennas when receiving the first receiving antenna mode deactivation instruction.
Optionally, the first network signaling further includes a validity period;
the switching unit 802 is specifically configured to switch to the corresponding number of receiving antennas at the corresponding time according to the first network signaling in the validity period carried by the first network signaling; and autonomously determining the number of the receiving antennas switched to the corresponding time outside the validity period carried by the first network signaling.
Optionally, the terminal further comprises a second sending unit 803, wherein,
the second sending unit 803 is configured to report a terminal capability indication signaling or channel rank indication information RI to a network side device; or reporting a third network signaling to a network side device, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum.
Optionally, as shown in fig. 8, the terminal further includes a second sending unit 803 and a connection reestablishment unit 804, wherein,
the second sending unit 803 is configured to report a third network signaling to a network side device when the switching unit 802 switches to the corresponding number of receiving antennas at the corresponding time according to the first network signaling, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
a connection reestablishing unit 804, configured to refuse to execute the first network signaling and initiate radio resource control RRC connection reestablishment after the second receiving unit 801 receives the first network signaling.
In practical applications, the determining unit 701, the first sending unit 702, and the first receiving unit 703 in this embodiment may be implemented by a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a modem, and other devices on the network-side device. The second receiving unit 801, the switching unit 802, the second sending unit 803, and the connection reestablishing unit 804 in this embodiment may be implemented by a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a modem, or other devices on the terminal.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (18)
1. A method for switching the number of receiving antennas in a multi-antenna terminal, the method comprising:
receiving a third network signaling reported by a terminal, wherein the third network signaling comprises one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
determining the number of receiving antennas adopted by the terminal at corresponding time according to a third network signaling reported by the terminal, downlink data volume information corresponding to the terminal and channel condition information;
and sending a first network signaling to the terminal according to the determined number of the receiving antennas adopted by the terminal at the corresponding time, wherein the first network signaling is used for indicating the number of the receiving antennas adopted by the terminal at the corresponding time.
2. The method of claim 1, wherein the first network signaling comprises: at least one time period and the number of receiving antennas used by the terminal in the time period.
3. The method of claim 1, wherein prior to sending the first network signaling to the terminal, the method further comprises:
sending a second network signaling to the terminal, wherein the second network signaling is used for notifying that the switching of the number of the receiving antennas in the terminal is controlled in a semi-static mode;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication.
4. The method according to any of claims 1-3, wherein the first network signaling further comprises a validity period, and the validity period is used for indicating a validity time of the first network signaling.
5. A method for switching the number of receiving antennas in a multi-antenna terminal, the method comprising:
reporting a third network signaling to a network side device, wherein the third network signaling comprises one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
receiving a first network signaling sent by a network side device, wherein the first network signaling is used for indicating the number of receiving antennas adopted by the terminal at corresponding time; the number of the receiving antennas adopted at the corresponding time is determined by the network side equipment according to the third network signaling, the downlink data volume information corresponding to the terminal and the channel condition information;
and switching to the corresponding number of the receiving antennas at the corresponding moment according to the first network signaling.
6. The method of claim 5, wherein the first network signaling comprises: at least one time period and the number of receiving antennas adopted by the terminal in the time period; the switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling includes:
and adopting the number of the receiving antennas adopted by the terminal in the time period indicated by the first network signaling in the time period.
7. The method according to claim 5, wherein before the receiving the first network signaling sent by the network side device, the method comprises:
receiving a second network signaling sent by a network side device, wherein the second network signaling is used for notifying the switching of the number of receiving antennas in a semi-static mode control terminal;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication; the switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling includes:
switching to a first number of receive antennas upon receiving a first receive antenna mode activation indication; alternatively, the second number of receive antennas is switched to upon receiving the first receive antenna mode deactivation indication.
8. The method according to any of claims 5-7, wherein the first network signaling further comprises a validity period; the switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling includes:
switching to the corresponding number of receiving antennas at the corresponding time according to the first network signaling in the validity period carried by the first network signaling;
and autonomously determining the number of the receiving antennas switched to the corresponding time outside the validity period carried by the first network signaling.
9. The method of claim 5, wherein after receiving the first network signaling sent by the network-side device, the method further comprises:
when the number of the receiving antennas is switched to the corresponding number at the corresponding moment according to the first network signaling, reporting a third network signaling to network side equipment;
or refusing to execute the first network signaling and initiating the reconstruction of the Radio Resource Control (RRC) connection.
10. A network side device, wherein the network side device comprises:
a first receiving unit, configured to receive a third network signaling reported by a terminal, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
a determining unit, configured to determine, according to the third network signaling received by the first receiving unit, downlink data amount information corresponding to the terminal, and channel condition information, the number of receiving antennas used by the terminal at a corresponding time;
a first sending unit, configured to send a first network signaling to the terminal according to the number of receiving antennas used by the terminal at the corresponding time, which is determined by the determining unit, where the first network signaling is used to indicate the number of receiving antennas used by the terminal at the corresponding time.
11. The network-side device of claim 10, wherein the first network signaling comprises: at least one time period and the number of receiving antennas used by the terminal in the time period.
12. The network-side device of claim 10,
the first sending unit is further configured to send a second network signaling to the terminal before sending the first network signaling to the terminal, where the second network signaling is used to notify that switching of the number of receiving antennas in the terminal is to be controlled in a semi-static manner;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication.
13. The network side device according to any of claims 10-12, wherein the first network signaling further includes a validity period, and the validity period is used to indicate a validity time of the first network signaling.
14. A terminal, characterized in that the terminal comprises:
a second sending unit, configured to report a third network signaling to a network side device, where the third network signaling includes one of the following parameters: the number of receiving antennas supported by the terminal, the number of receiving antennas not supported by the terminal, and the number of receiving antennas supported by the terminal at maximum;
a second receiving unit, configured to receive a first network signaling sent by a network side device, where the first network signaling is used to indicate a number of receiving antennas used by the terminal at a corresponding time; the number of the receiving antennas adopted at the corresponding time is determined by the network side equipment according to the third network signaling, the downlink data volume information corresponding to the terminal and the channel condition information;
and the switching unit is used for switching to the corresponding number of the receiving antennas at the corresponding moment according to the first network signaling received by the second receiving unit.
15. The terminal of claim 14, wherein the first network signaling comprises: at least one time period and the number of receiving antennas adopted by the terminal in the time period;
the switching unit is specifically configured to use, in the time period, the number of receiving antennas used by the terminal in the time period indicated by the first network signaling received by the second receiving unit.
16. The terminal of claim 14,
the second receiving unit is further configured to receive a second network signaling sent by a network side device, where the second network signaling is used to notify that switching of the number of receiving antennas in the terminal is controlled in a semi-static manner;
correspondingly, the first network signaling includes: a first receive antenna mode activation indication or a first receive antenna mode deactivation indication;
the switching unit is specifically configured to switch to the first number of receiving antennas when the second receiving unit receives the first receiving antenna mode activation instruction; or, when the second receiving unit receives the first receiving antenna mode deactivation indication, the second receiving unit switches to the second receiving antenna number.
17. The terminal according to any of claims 14-16, wherein the first network signaling further comprises a validity period;
the switching unit is specifically configured to switch to the corresponding number of receiving antennas at the corresponding time according to the first network signaling in an effective period carried by the first network signaling; and autonomously determining the number of the receiving antennas switched to the corresponding time outside the validity period carried by the first network signaling.
18. The terminal according to claim 14, characterized in that the terminal further comprises a connection re-establishment unit, wherein,
the second sending unit is further configured to report a third network signaling to the network side device when the switching unit switches to the corresponding number of receiving antennas at the corresponding time according to the first network signaling;
and the connection reestablishment unit is used for refusing to execute the first network signaling and initiating the RRC connection reestablishment after the second receiving unit receives the first network signaling.
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