WO2014154171A1 - 一种确定上行信道状态信息的方法和装置 - Google Patents
一种确定上行信道状态信息的方法和装置 Download PDFInfo
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- WO2014154171A1 WO2014154171A1 PCT/CN2014/074291 CN2014074291W WO2014154171A1 WO 2014154171 A1 WO2014154171 A1 WO 2014154171A1 CN 2014074291 W CN2014074291 W CN 2014074291W WO 2014154171 A1 WO2014154171 A1 WO 2014154171A1
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- 238000004364 calculation method Methods 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
Definitions
- the present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for determining uplink channel state information. Background technique
- the terminal In the LTE-A (Long Term Evolution-Advanced) system, the terminal periodically transmits an SRS (Sounding Reference Signal) in the uplink to assist the base station to obtain uplink channel state information, and the base station according to the uplink.
- SRS Sounding Reference Signal
- the channel state information is adaptively modulated and encoded, and an appropriate modulation and coding scheme is selected.
- the SRS sent by the terminal occupies the last SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol of the second slot.
- the terminal performs SRS transmission and can be divided into two modes: non-frequency hopping and frequency hopping.
- non-frequency hopping mode in each subframe, the terminal performs full-bandwidth SRS transmission on its configured bandwidth (the base station allocates uplink frequency resources for the terminal).
- the frequency hopping mode the hopping bandwidth can be configured according to the configuration (the hopping bandwidth is one-N of the configured bandwidth width, N is a positive integer, which can be recorded as b h .
- the SRS transmission period (the interval at which the terminal transmits the SRS), the SRS is sent on one of the sub-bands, and after the N periods are transmitted, the SRS is sent once on the N sub-bands, and the N SRS transmission periods are
- the corresponding total duration is a frequency hopping period. For example, if the hopping bandwidth is 1/4 of the configured bandwidth, the configured bandwidth is divided into four sub-bandwidths, and the frequency from low to high may be the first sub-bandwidth, the second sub-bandwidth, the third sub-bandwidth, and the fourth sub-bandwidth, and the period.
- the first SRS transmission period may send SRS on the first sub-band
- the second SRS transmission period may send SRS on the third sub-band
- the third SRS transmission period The SRS may be transmitted on the second sub-band
- the fourth SRS transmission period may transmit the SRS on the fourth sub-band.
- the base station In the non-frequency hopping mode, after the base station receives the SRS on the configured bandwidth, it can determine by calculation. Configure the uplink channel status information corresponding to the bandwidth, such as the transmission matrix, SINR (Signal-to-Interference and Noise Ratio), and path loss.
- SINR Signal-to-Interference and Noise Ratio
- the base station may determine the uplink channel state information corresponding to each sub-bandwidth by calculation.
- the inventor has found that at least the following problems exist in the prior art:
- the SRS transmission is performed in each sub-bandwidth of the terminal configuration bandwidth. It occupies a large amount of terminal uplink resources. Summary of the invention
- an embodiment of the present invention provides a method and apparatus for determining uplink channel state information, so as to improve utilization of uplink resource of a terminal in an acquisition process of uplink channel state information.
- the technical solution is as follows:
- a method for determining uplink channel state information is provided.
- the base station pre-configures a part of the sub-bandwidth in the configured bandwidth of the terminal as a sub-bandwidth for SRS transmission, where the configuration bandwidth includes multiple widths as frequency hopping bandwidths.
- Sub-bandwidth the method includes:
- the base station receives, on the sub-band for SRS transmission, an SRS sent by the terminal on the sub-band for SRS transmission;
- the base station determines, by the base station, the uplink channel state information corresponding to the sub-bandwidth not used for the SRS transmission in the configured bandwidth, according to the uplink channel state information corresponding to each sub-band for the SRS transmission.
- a method for determining uplink channel state information is provided.
- the terminal pre-configures a part of the sub-bandwidth in the configured bandwidth of the terminal as a sub-bandwidth for SRS transmission, where the configuration bandwidth includes multiple widths.
- the sub-bandwidth of the frequency hopping bandwidth includes:
- a base station Transmitting, by the terminal, the SRS to the base station on the sub-band for SRS transmission; to enable the base station to determine each sub-SRS transmission according to the SRS received on each sub-band for SRS transmission Upstream channel state information corresponding to the bandwidth, and determining, according to the uplink channel state information corresponding to each subband of the SRS transmission, uplink channel state information corresponding to the subband that is not used for SRS transmission in the configured bandwidth.
- a base station is provided, the base station including:
- a configuration module where a part of the sub-bandwidth of the configuration bandwidth of the pre-configured terminal is a sub-bandwidth for the SRS transmission, where the configuration bandwidth includes a plurality of sub-bandwidths having a width of a hopping bandwidth;
- a receiving module configured to receive, on the sub-band for SRS transmission, an SRS sent by the terminal on the sub-band for SRS transmission;
- a determining module configured to determine, according to the SRS received on each sub-band for SRS transmission, uplink channel state information corresponding to each sub-band for SRS transmission; according to the sub-bands used for SRS transmission Corresponding uplink channel state information, determining uplink channel state information corresponding to the sub-bandwidth of the configured bandwidth that is not used for SRS transmission.
- a terminal where the terminal includes:
- a configuration module configured to pre-configure a part of the sub-bandwidth of the configured bandwidth of the terminal as a sub-bandwidth for SRS transmission, where the configuration bandwidth includes multiple sub-bandwidths with a width of a hopping bandwidth; Transmitting an SRS to the base station on the sub-band for SRS transmission; so that the base station determines, according to the SRS received on each sub-band for SRS transmission, the sub-bandwidth corresponding to the SRS transmission Upstream channel state information, and determining, according to the uplink channel state information corresponding to each subband of the SRS transmission, uplink channel state information corresponding to the subband that is not used for SRS transmission in the configured bandwidth.
- the base station pre-configures a part of the sub-bandwidth of the configured bandwidth of the terminal as a sub-bandwidth for SRS transmission, and the base station sends the sub-band for SRS transmission on the sub-band for SRS transmission. And determining, according to the received SRS, the uplink channel state information corresponding to each sub-bandwidth used for the SRS transmission, and determining, according to the uplink channel state information corresponding to each sub-bandwidth used for the SRS transmission, that the configured bandwidth is not used for the SRS.
- the uplink channel state information corresponding to the transmitted sub-bandwidth so that the SRS can be sent only on a part of the sub-bandwidth of the configured bandwidth of the terminal, so that the utilization rate of the uplink resource of the terminal can be improved.
- FIG. 1 is a flowchart of a method for determining uplink channel state information according to an embodiment of the present invention
- FIG. 2 is a flowchart of a method for determining uplink channel state information according to an embodiment of the present invention
- FIG. 3 is a flowchart for providing an SRS according to an embodiment of the present invention. Schematic diagram of time-frequency resources transmitted;
- FIG. 4 is a schematic diagram of time-frequency resources for SRS transmission according to an embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of an apparatus for determining uplink channel state information according to an embodiment of the present invention. detailed description
- the embodiment of the present invention provides a method for determining uplink channel state information, where the base station pre-configures a part of the sub-bandwidth in the configured bandwidth of the terminal as a sub-bandwidth for SRS transmission, where the configured bandwidth includes multiple widths.
- the sub-bandwidth of the hopping bandwidth, the processing procedure of the method on the base station side can be as shown in FIG. 1 , and includes the following steps:
- Step 101 The base station receives, on a sub-band for SRS transmission, an SRS sent by the terminal on a sub-band for SRS transmission;
- Step 102 The base station determines uplink channel state information corresponding to each sub-bandwidth used for SRS transmission according to the SRS received on each sub-band for SRS transmission.
- Step 103 The base station determines, according to the uplink channel state information corresponding to each sub-bandwidth used for the SRS transmission, the uplink channel state information corresponding to the sub-bandwidth of the configured bandwidth that is not used for the SRS transmission.
- the terminal pre-configures a part of the sub-bandwidth of the configuration bandwidth of the terminal to be a sub-bandwidth for the SRS transmission, where the configuration bandwidth includes a plurality of sub-bandwidths with a width of a hopping bandwidth
- the processing on the terminal side of the method may include Transmitting, by the terminal, the SRS to the base station on the sub-band for the SRS transmission, so that the base station determines, according to the SRS received on each sub-band for the SRS transmission, an uplink channel corresponding to each sub-band for the SRS transmission.
- the base station pre-configures a part of the sub-bandwidth in the configured bandwidth of the terminal for
- the sub-bandwidth of the SRS transmission receives the SRS sent by the terminal on the sub-band for the SRS transmission, and determines, according to the received SRS, the sub-bandwidth corresponding to the SRS transmission.
- Upstream channel state information and determining, according to the uplink channel state information corresponding to each sub-bandwidth used for the SRS transmission, the uplink channel state information corresponding to the sub-bandwidth of the configured bandwidth that is not used for the SRS transmission, and thus, only in the configured bandwidth of the terminal
- the SRS is transmitted on a part of the sub-bandwidth, thereby improving the utilization of the uplink resources of the terminal.
- An embodiment of the present invention provides a method for determining uplink channel state information.
- a base station and a terminal may pre-configure a portion of the sub-bandwidth in the configured bandwidth of the terminal as a sub-bandwidth for SRS transmission.
- the configuration bandwidth includes multiple sub-bandwidths with a width of a hopping bandwidth.
- the hopping bandwidth can be preset.
- the hopping bandwidth is one-Nth of the configured bandwidth width (N is a positive integer), that is, the configured bandwidth is an integer multiple of the hopping bandwidth.
- the configuration bandwidth can include N widths.
- a partial sub-bandwidth may be selected from all sub-bandwidths of the configured bandwidth as a sub-bandwidth for SRS transmission, that is, one or more sub-bandwidths for SRS transmission in the configured bandwidth, and sub-bandwidths for SRS transmission The number is less than the total number of sub-bandwidths in the configured bandwidth.
- the part of the configured bandwidth of the terminal is configured as a sub-bandwidth for the SRS transmission, and then the corresponding configuration information is sent by the base station to the terminal.
- a part of the sub-bandwidth of the configured bandwidth of the terminal may be configured in the base station and the terminal as sub-bandwidth for SRS transmission, that is, the corresponding configuration information may be directly written into the terminal by other means.
- the sub-bandwidth for SRS transmission is determined, and there may be many different schemes. For example, a certain number of sub-bandwidths may be randomly selected as the sub-bandwidth for SRS transmission in all sub-bandwidths of the configured bandwidth, or a certain number of sub-bandwidths may be selected as the SRS transmission in all sub-bandwidths of the configured bandwidth.
- the sub-bandwidth can also be selected as one sub-bandwidth for SRS transmission among all sub-bandwidths of the configured bandwidth.
- Solution 1 the sub-bandwidth used for SRS transmission, specifically, each interval in each sub-bandwidth of the configured bandwidth
- a preset number of sub-bandwidths selects a plurality of sub-bandwidths obtained from one sub-bandwidth.
- the selection may be started from a sub-bandwidth at an upper boundary or a lower boundary of the configuration bandwidth.
- the preset number may be n-1 (n is any integer that can be divisible by N, and N is the total number of sub-bandwidths in the configured bandwidth).
- the configuration bandwidth of the terminal includes four sub-bandwidths, and the frequency from low to high may be the first sub-bandwidth, the second sub-bandwidth, the third sub-bandwidth, and the fourth sub-bandwidth, and the first sub-bandwidth and the third sub-band may be set.
- the bandwidth is the sub-bandwidth used for SRS transmission.
- the configuration bandwidth of the terminal includes a total of eight sub-bandwidths, and the frequency from low to high may be the first sub-bandwidth, the second sub-bandwidth, the third sub-bandwidth, the eighth sub-bandwidth, and the first sub-band may be set.
- the bandwidth, the third sub-bandwidth, the fifth sub-bandwidth, and the seventh sub-bandwidth are sub-bandwidths for SRS transmission.
- the sub-bandwidth used for the SRS transmission includes at least the sub-bandwidth at the upper boundary of the configuration bandwidth and the sub-bandwidth at the lower boundary.
- the configuration bandwidth of the terminal includes four sub-bandwidths, and the frequency from low to high may be the first sub-bandwidth, the second sub-bandwidth, the third sub-bandwidth, and the fourth sub-bandwidth, and the first sub-bandwidth and the fourth sub-band may be set.
- the bandwidth is the sub-bandwidth used for SRS transmission.
- the configuration bandwidth of the terminal includes a total of eight sub-bandwidths, and the frequency from low to high may be the first sub-bandwidth, the second sub-bandwidth, the third sub-bandwidth, the eighth sub-bandwidth, and the first sub-band may be set.
- the bandwidth and the eighth sub-bandwidth are sub-bandwidths for SRS transmission.
- the terminal in addition to performing the foregoing configuration of the sub-bandwidth, may further configure, in a subframe in the hopping period, a subframe corresponding to each sub-bandwidth used for SRS transmission.
- the base station may also pre-configure a subframe corresponding to each sub-band for SRS transmission in a subframe within the frequency hopping period.
- the SRS transmission is performed according to a preset frequency hopping period, and each Shop transmission period may be performed once for each sub-band for SRS transmission.
- the subframe corresponding to the sub-bandwidth used for the SRS transmission may be a subframe used for SRS transmission of the sub-band, that is, the SRS transmission of the sub-band is performed in the subframe.
- the sub-frame corresponding to the sub-bandwidth used for the SRS transmission is selected in the hopping period, the sub-frame in the hopping period may be arbitrarily selected, or the corresponding selection rule may be set.
- the SRS On each sub-band for SRS transmission, the SRS may be transmitted according to a certain duration interval, and the duration interval is a frequency hopping period, so that each sub-band for SRS transmission is in accordance with frequency hopping.
- the SRS is sent periodically.
- the base station may first configure a subframe corresponding to each sub-bandwidth used for SRS transmission in a subframe in a hopping period, and then the base station sends corresponding configuration information to the terminal.
- the subframes corresponding to each sub-bandwidth used for SRS transmission in the subframes in the hopping period can be configured in the base station and the terminal, that is, the corresponding configuration information can be directly written into the terminal by other means.
- the length of the interval between the subframes corresponding to the pre-configured sub-bandwidth for SRS transmission may be an integer multiple of a preset unit duration.
- the unit duration can be a prior art SRS transmission period.
- the frequency hopping period is N times of the SRS transmission period (N is the total number of subbands in the configured bandwidth), that is, there are N SRS transmission periods in the hopping period.
- N is the total number of subbands in the configured bandwidth
- the SRS transmission period in the prior art may be utilized, that is, the SRS is transmitted in the prior art. Subframe.
- the first SRS transmission period may send the SRS on the first sub-band
- the second SRS transmission period may send the SRS on the third sub-band, the third SRS.
- the transmission period and the fourth SRS transmission period may not transmit the SRS.
- the first SRS transmission period may send the SRS on the first sub-band
- the third SRS transmission period may send the SRS on the third sub-band
- the second SRS transmission period and The fourth SRS transmission period may not transmit the SRS.
- the first SRS transmission period may send the SRS on the first sub-band, and the second SRS transmission period may send the SRS on the fifth sub-band, the third The SRS transmission period may send the SRS on the third sub-band, the fourth SRS transmission period may send the SRS on the seventh sub-band, and the fourth SRS transmission period to the eighth SRS transmission period may not transmit the SRS.
- the first SRS transmission period may send the SRS on the first sub-band
- the third SRS transmission period may send the SS on the fifth sub-band.
- the SRS transmission period may send the SRS on the third sub-band, the seventh SRS transmission period may send the SRS on the seventh sub-band, and the other SRS transmission period may not send the SRS (the slash portion in the figure is the SRS transmission)
- the first SRS transmission period in the above example three, in a frequency hopping period, may be in the first The SRS is transmitted on one sub-band, the fourth SRS transmission period may send the SRS on the fourth sub-band, and the second SRS transmission period and the third SRS transmission period may not transmit the SRS.
- the first SRS transmission period in the above example three, in a frequency hopping period, may be in the first The SRS is transmitted on one sub-band, the fourth SRS transmission period may send the SRS on the fourth sub-band, and the second SRS transmission period and the third SRS transmission period may not transmit the SRS.
- the first SRS transmission period may send the SRS on the first sub-bandwidth
- the third SRS transmission period may send the SRS on the fourth sub-band
- the SRS transmission period and the fourth SRS transmission period may not transmit the SRS (the oblique line portion in the figure is the time-frequency resource for transmitting the SRS, and the vertical axis is the frequency horizontal axis as the time). There are other cases, which are not listed in this embodiment.
- the first SRS transmission period may send the SRS on the first sub-band
- the eighth SRS transmission period may send the SRS on the eighth sub-band
- the second The SRS may not be transmitted from the SRS transmission period to the seventh SRS transmission period.
- the first SRS transmission period may send the SRS on the first sub-band
- the fifth SRS transmission period may send the SRS on the eighth sub-band
- other SRS transmission periods may not Send SRS.
- the processing procedure of the method for determining uplink channel state information may include the following steps:
- Step 201 The terminal sends an SRS to the base station on the sub-band configured for the SRS transmission.
- the sub-bandwidths other than the sub-bandwidth used for SRS transmission are sub-bandwidths that are not used for SRS transmission.
- the terminal may send the SRS to the base station on the sub-band for the SRS transmission corresponding to the subframe in each subframe corresponding to the sub-band for the SRS transmission in each hop period.
- the correspondence between the sub-bands for the SRS transmission and the subframes in the hopping period may be established, and these subframes may be referred to as subframes for SRS transmission.
- SRS transmission when SRS is performed, when the SRS is transmitted on a certain sub-bandwidth, the subframe corresponding to the sub-bandwidth is used.
- Step 202 The base station receives, on the sub-band for SRS transmission, the SRS sent by the terminal on the sub-band for SRS transmission.
- the base station receives the SRS sent by the terminal on the sub-band corresponding to the subframe for SRS transmission in each subframe.
- Step 203 The base station determines uplink channel state information corresponding to each sub-bandwidth used for SRS transmission according to the SRS received on each sub-band for SRS transmission. There are many methods for calculating the sub-bandwidth uplink channel state information according to the SRS, which is not limited by the embodiment of the present invention.
- Step 204 The base station determines, according to the uplink channel state information corresponding to each sub-bandwidth used for the SRS transmission, the uplink channel state information corresponding to the sub-bandwidth of the configured bandwidth that is not used for the SRS transmission.
- the uplink channel state information corresponding to the other sub-bandwidths in the configured bandwidth may be determined according to the uplink channel state information corresponding to each sub-band of the SRS transmission, and there may be many methods. For example, the number of sub-bandwidths used for SRS transmission is 1 , and the uplink channel state information corresponding to the one sub-bandwidth can be directly used as the uplink channel state information corresponding to the other sub-bandwidths. For another example, the average value of the uplink channel state information corresponding to each sub-bandwidth of the SRS transmission may be determined first, and then the average value is used as the uplink channel state information corresponding to the other sub-bandwidths.
- the base station may determine, according to the uplink channel state information corresponding to each sub-bandwidth used for the SRS transmission, the uplink channel state information corresponding to the sub-bandwidth of the configured bandwidth that is not used for the SRS transmission, based on the interpolation method or the curve fitting method.
- the interpolation method can be further divided into an interpolation method and an extrapolation method.
- an interpolation method can be used.
- an extrapolation method and an interpolation method can be used.
- the calculation can be performed using linear interpolation.
- the second sub-interval can be calculated according to the interpolation method or the curve fitting method.
- the SINR corresponding to the bandwidth is 6 dB
- the SINR corresponding to the fourth sub-band is 8 dB.
- the SINR corresponding to the first sub-bandwidth, the third sub-bandwidth, the fifth sub-bandwidth, and the seventh sub-bandwidth is calculated to be 3 dB in step 203, according to the interpolation method or the curve fitting method.
- the SINR corresponding to the second sub-bandwidth, the fourth sub-bandwidth, the sixth sub-bandwidth, and the eighth sub-bandwidth may be calculated to be 3 dB.
- the second sub-interval can be calculated according to the interpolation method or the curve fitting method.
- the SINR corresponding to the bandwidth is 6 dB
- the SINR corresponding to the third sub-band is 7 dB.
- the second sub-interval can be calculated according to the interpolation method or the curve fitting method.
- the SINR corresponding to the bandwidth to the seventh sub-bandwidth is 3 dB.
- the base station pre-configures a part of the sub-bandwidth in the configured bandwidth of the terminal for The sub-bandwidth of the SRS transmission, the base station, on the sub-band for the SRS transmission, receives the SRS sent by the terminal on the sub-band for the SRS transmission, and determines, according to the received SRS, the sub-bandwidth corresponding to the SRS transmission.
- an embodiment of the present invention further provides a base station.
- the base station includes:
- the configuration module 510 is configured to pre-configure a partial sub-bandwidth of the configured bandwidth of the terminal to be a sub-bandwidth for the SRS transmission, where the configuration bandwidth includes a plurality of sub-bandwidths with a width of a hopping bandwidth, and a receiving module 520, configured to: Receiving, on the sub-band for SRS transmission, an SRS sent by the terminal on the sub-band for SRS transmission;
- a determining module 530 configured to determine, according to the SRS received on each sub-band for SRS transmission, uplink channel state information corresponding to each sub-band for SRS transmission; according to the sub-segment for SRS transmission
- the uplink channel state information corresponding to the bandwidth determines uplink channel state information corresponding to the sub-bandwidth of the configured bandwidth that is not used for SRS transmission.
- the configuration module 510 is further configured to: pre-configure a subframe corresponding to each sub-bandwidth used for SRS transmission in a subframe in a frequency hopping period;
- the receiving module 520 is specifically configured to: and send the SRS for the SRS transmission in each hop period.
- the interval between the pre-configured subframes is an integer multiple of a preset unit duration.
- the sub-bandwidth used for the SRS transmission is specifically a plurality of sub-bandwidths obtained by selecting one sub-bandwidth per preset number of sub-bandwidths in each sub-bandwidth of the configured bandwidth.
- the sub-bandwidth for SRS transmission includes at least a sub-bandwidth at an upper boundary of the configuration bandwidth and a sub-bandwidth at a lower boundary.
- the determining module 530 is specifically configured to:
- the embodiment of the present invention further provides a terminal, where the terminal includes: a configuration module, configured to pre-configure a part of the sub-bandwidth in the configured bandwidth of the terminal as a sub-bandwidth for SRS transmission, where The configuration bandwidth includes a plurality of sub-bandwidths having a width of a hopping bandwidth, and a sending module, configured to send, to the base station, an SRS on the sub-band for the SRS transmission, so that the base station is configured according to the SRS
- the SRS received on each sub-band, determining the uplink channel state information corresponding to each sub-band for the SRS transmission, and determining the configuration according to the uplink channel state information corresponding to each sub-band for the SRS transmission
- the configuration module is further configured to: pre-configure a subframe corresponding to each sub-bandwidth for SRS transmission in a subframe in a frequency hopping period;
- the sending module is specifically configured to: send, by the terminal, the SRS for the SRS transmission in each frequency hopping period.
- the interval between the pre-configured subframes is an integer multiple of a preset unit duration.
- the sub-bandwidth used for the SRS transmission is specifically a plurality of sub-bandwidths obtained by selecting one sub-bandwidth per preset number of sub-bandwidths in each sub-bandwidth of the configured bandwidth.
- the sub-bandwidth for SRS transmission includes at least a sub-bandwidth at an upper boundary of the configuration bandwidth and a sub-bandwidth at a lower boundary.
- the base station pre-configures a part of the sub-bandwidth in the configured bandwidth of the terminal for
- the sub-bandwidth of the SRS transmission receives the SRS sent by the terminal on the sub-band for the SRS transmission, and determines, according to the received SRS, the sub-bandwidth corresponding to the SRS transmission.
- Upstream channel state information and determining, according to uplink channel state information corresponding to each sub-bandwidth used for SRS transmission, an uplink channel state information corresponding to the sub-bandwidth of the configured bandwidth that is not used for SRS transmission Therefore, the SRS can be transmitted only on a part of the sub-bandwidth of the configured bandwidth of the terminal, thereby improving the utilization of the uplink resource of the terminal.
- the apparatus for determining the uplink channel state information provided by the foregoing embodiment determines the uplink channel state information
- only the division of each functional module is used for example.
- the foregoing function may be allocated according to requirements. Different functional modules are completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
- the apparatus for determining the uplink channel state information provided by the foregoing embodiment is the same as the method for determining the uplink channel state information. For details, refer to the method embodiment, and details are not described herein again.
- a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
- the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.
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Abstract
本发明公开了一种确定上行信道状态信息的方法和装置,属于无线通信技术领域。所述方法包括:基站预先配置终端的配置带宽中的部分子带宽为用于SRS传输的子带宽,其中,所述配置带宽包括多个宽度为跳频带宽的子带宽;所述基站在所述用于SRS传输的子带宽上,接收所述终端在所述用于SRS传输的子带宽上发送的SRS;所述基站根据在用于SRS传输的各子带宽上接收到的SRS,确定所述用于SRS传输的各子带宽对应的上行信道状态信息;所述基站根据所述用于SRS传输的各子带宽对应的上行信道状态信息,确定所述配置带宽中不用于SRS传输的子带宽对应的上行信道状态信息。
Description
一种确定上行信道状态信息的方法和装置
本申请要求于 2013 年 03 月 28 日提交中国专利局、 申请号为 201310105311.X, 发明名称为 "一种确定上行信道状态信息的方法和装置" 的 中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及无线通信技术领域,特别涉及一种确定上行信道状态信息的方 法和装置。 背景技术
在 LTE- A ( Long Term Evolution- Advanced, 高级长期演进) ***中, 终端 在上行链路会周期发送 SRS ( Sounding Reference Signal, 侦听参考信号), 以 辅助基站获得上行信道状态信息,基站根据上行信道状态信息进行自适应调制 编码, 选择合适的调制编码方案。
现有技术中, 在一个子帧内, 终端发送的 SRS占用第二个 slot (时隙) 的 最后一个 SC-FDMA ( Single Carrier Frequency Division Multiple Access, 单载波 频分多址)符号。 终端进行 SRS发送可分为非跳频和跳频两种模式。 在非跳频 模式下,在每个子帧内,终端在其配置带宽(基站为终端分配的上行频率资源) 上进行全带宽的 SRS发送。 在跳频模式下, 可以先根据配置的跳频带宽(跳频 带宽是配置带宽宽度的 N分之一, N为正整数, 可记作 bh。p )将配置带宽分成 N 个子带宽, 每个 SRS发送周期(终端每次发送 SRS的时间间隔), 在其中的一个 子带宽上发送 SRS, 发送了 N个周期后, 则在 N个子带宽上各发送了一次 SRS , 这 N个 SRS发送周期对应的总时长则为一个跳频周期。 例如, 跳频带宽是配置 带宽的 1/4, 则将配置带宽分成 4个子带宽, 频率由低到高可以是第一子带宽、 第二子带宽、第三子带宽、第四子带宽, 周期为四个子帧,在一个跳频周期内, 第一个 SRS发送周期可以在第一子带宽上发送 SRS , 第二个 SRS发送周期可以 在第三子带宽上发送 SRS, 第三个 SRS发送周期可以在第二子带宽上发送 SRS, 第四个 SRS发送周期可以在第四子带宽上发送 SRS。
在非跳频模式下, 基站在配置带宽上接收到 SRS后, 则可以通过计算确定
配置带宽对应的上行信道状态信息, 如传输矩阵、 SINR ( Signal-to-Interference and Noise Ratio, 信干噪比)、 路径损耗等信息。 在跳频模式下, 基站在各子带 宽上接收到 SRS后, 则可以通过计算确定每个子带宽对应的上行信道状态信 息。
在实现本发明的过程中, 发明人发现现有技术至少存在以下问题: 现有技术中, 在确定上行信道状态信息的过程中, 在终端配置带宽的各子 带宽中都要进行 SRS的传输, 占用了大量的终端上行链路资源。 发明内容
为了解决现有技术的问题,本发明实施例提供了一种定上行信道状态信息 的方法和装置, 以在上行信道状态信息的获取过程中, 提高终端上行链路资源 的利用率。 所述技术方案如下:
一方面, 提供了一种确定上行信道状态信息的方法,基站预先配置终端的 配置带宽中的部分子带宽为用于 SRS传输的子带宽, 其中, 所述配置带宽包括 多个宽度为跳频带宽的子带宽, 所述方法包括:
所述基站在所述用于 SRS传输的子带宽上, 接收所述终端在所述用于 SRS 传输的子带宽上发送的 SRS;
所述基站根据在用于 SRS传输的各子带宽上接收到的 SRS, 确定所述用于
SRS传输的各子带宽对应的上行信道状态信息;
所述基站根据所述用于 SRS传输的各子带宽对应的上行信道状态信息, 确 定所述配置带宽中不用于 SRS传输的子带宽对应的上行信道状态信息。
另一方面, 提供了一种确定上行信道状态信息的方法, 终端预先配置所述 终端的配置带宽中的部分子带宽为用于 SRS传输的子带宽, 其中, 所述配置带 宽包括多个宽度为跳频带宽的子带宽, 所述方法包括:
所述终端在所述用于 SRS传输的子带宽上向基站发送 SRS; 以使所述基站 根据在用于 SRS传输的各子带宽上接收到的 SRS, 确定所述用于 SRS传输的各 子带宽对应的上行信道状态信息, 并根据所述用于 SRS传输的各子带宽对应的 上行信道状态信息, 确定所述配置带宽中不用于 SRS传输的子带宽对应的上行 信道状态信息。
另一方面, 提供了一种基站, 所述基站包括:
配置模块, 用于预先配置终端的配置带宽中的部分子带宽为用于 SRS传输 的子带宽, 其中, 所述配置带宽包括多个宽度为跳频带宽的子带宽;
接收模块, 用于在所述用于 SRS传输的子带宽上, 接收所述终端在所述用 于 SRS传输的子带宽上发送的 SRS;
确定模块, 用于根据在用于 SRS传输的各子带宽上接收到的 SRS , 确定所 述用于 SRS传输的各子带宽对应的上行信道状态信息; 根据所述用于 SRS传输 的各子带宽对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS传输的 子带宽对应的上行信道状态信息。
另一方面, 提供了一种终端, 所述终端包括:
配置模块, 用于预先配置所述终端的配置带宽中的部分子带宽为用于 SRS 传输的子带宽, 其中, 所述配置带宽包括多个宽度为跳频带宽的子带宽; 发送模块, 用于在所述用于 SRS传输的子带宽上向基站发送 SRS; 以使所 述基站根据在用于 SRS传输的各子带宽上接收到的 SRS , 确定所述用于 SRS传 输的各子带宽对应的上行信道状态信息, 并根据所述用于 SRS传输的各子带宽 对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS传输的子带宽对应 的上行信道状态信息。
本发明实施例提供的技术方案带来的有益效果是:
本发明实施例中, 基站预先配置终端的配置带宽中的部分子带宽为用于 SRS传输的子带宽, 基站在用于 SRS传输的子带宽上, 接收终端在用于 SRS传 输的子带宽上发送的 SRS, 并根据接收到的 SRS , 确定用于 SRS传输的各子带 宽对应的上行信道状态信息, 再根据用于 SRS传输的各子带宽对应的上行信道 状态信息, 确定配置带宽中不用于 SRS传输的子带宽对应的上行信道状态信 息, 这样, 可以只在终端的配置带宽中的部分子带宽上发送 SRS, 从而, 可以 提高终端上行链路资源的利用率。 附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所 需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明
的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明实施例提供的确定上行信道状态信息的方法流程图; 图 2是本发明实施例提供的确定上行信道状态信息的方法流程图; 图 3是本发明实施例提供的用于 SRS传输的时频资源示意图;
图 4是本发明实施例提供的用于 SRS传输的时频资源示意图;
图 5是本发明实施例提供的确定上行信道状态信息的装置结构示意图。 具体实施方式
为使本发明的目的、技术方案和优点更加清楚, 下面将结合附图对本发明 实施方式作进一步地详细描述。
实施例一
本发明实施例提供了一种确定上行信道状态信息的方法, 该方法中,基站 预先配置终端的配置带宽中的部分子带宽为用于 SRS传输的子带宽, 其中, 配 置带宽包括多个宽度为跳频带宽的子带宽,该方法基站侧的处理流程可以如图 1所示, 包括以下步骤:
步骤 101 ,基站在用于 SRS传输的子带宽上,接收终端在用于 SRS传输的子 带宽上发送的 SRS;
步骤 102,基站根据在用于 SRS传输的各子带宽上接收到的 SRS ,确定用于 SRS传输的各子带宽对应的上行信道状态信息;
步骤 103 , 基站根据用于 SRS传输的各子带宽对应的上行信道状态信息, 确定配置带宽中不用于 SRS传输的子带宽对应的上行信道状态信息。
该方法中, 终端预先配置该终端的配置带宽中的部分子带宽为用于 SRS传 输的子带宽, 其中, 配置带宽包括多个宽度为跳频带宽的子带宽, 该方法终端 侧的处理可以包括: 终端在所述用于 SRS传输的子带宽上向基站发送 SRS; 以 使基站根据在用于 SRS传输的各子带宽上接收到的 SRS , 确定用于 SRS传输的 各子带宽对应的上行信道状态信息, 并根据用于 SRS传输的各子带宽对应的上 行信道状态信息, 确定配置带宽中不用于 SRS传输的子带宽对应的上行信道状 态信息。
本发明实施例中, 基站预先配置终端的配置带宽中的部分子带宽为用于
SRS传输的子带宽, 基站在用于 SRS传输的子带宽上, 接收终端在用于 SRS传 输的子带宽上发送的 SRS , 并根据接收到的 SRS , 确定用于 SRS传输的各子带 宽对应的上行信道状态信息, 再根据用于 SRS传输的各子带宽对应的上行信道 状态信息, 确定配置带宽中不用于 SRS传输的子带宽对应的上行信道状态信 息, 这样, 可以只在终端的配置带宽中的部分子带宽上发送 SRS, 从而, 可以 提高终端上行链路资源的利用率。 实施例二
本发明实施例提供了一种确定上行信道状态信息的方法, 该方法中,基站 与终端可以预先配置该终端的配置带宽中的部分子带宽为用于 SRS传输的子 带宽。
其中, 配置带宽包括多个宽度为跳频带宽的子带宽。跳频带宽可以是预先 设置的, 跳频带宽是配置带宽宽度的 N分之一(N为正整数), 也即配置带宽是 跳频带宽的整数倍, 这样, 配置带宽可以包括 N个宽度为跳频带宽的子带宽。 可以从配置带宽的所有子带宽中选择部分子带宽, 作为用于 SRS传输的子带 宽, 即配置带宽中用于 SRS传输的子带宽可以有一个或者多个, 用于 SRS传输 的子带宽的个数小于配置带宽中子带宽的总数。
具体的, 可以先在基站配置该终端的配置带宽中的部分子带宽为用于 SRS 传输的子带宽, 然后由基站将相应的配置信息发送给终端。 或者, 也可以分别 在基站和终端配置该终端的配置带宽中的部分子带宽为用于 SRS传输的子带 宽, 即可以通过其它的方式将相应的配置信息直接写入终端。
本发明实施例中, 在终端配置带宽的各子带宽中, 确定用于 SRS传输的子 带宽, 可以有多种不同的方案。 例如, 可以在配置带宽的所有子带宽中随机选 取一定数量的子带宽作为用于 SRS传输的子带宽, 也可以在配置带宽的所有子 带宽中间隔的选取一定数量的子带宽作为用于 SRS传输的子带宽, 还可以在配 置带宽的所有子带宽中选取一个子带宽作为用于 SRS传输的子带宽。 下面给出 了几种优选的方案:
方案一, 用于 SRS传输的子带宽, 具体为在配置带宽的各子带宽中每间隔
预设数目的子带宽选取一个子带宽而得到的多个子带宽。
优选的, 可以从配置带宽的上边界处或下边界处的子带宽开始选取。优选 的, 该预设数目可以为 n-1 ( n是可以被 N整除的任意整数, N为配置带宽中的 子带宽总数)。
例一, 终端的配置带宽中共包括 4个子带宽, 频率由低到高可以是第一子 带宽、 第二子带宽、 第三子带宽、 第四子带宽, 可以设置第一子带宽和第三子 带宽为用于 SRS传输的子带宽。
例二, 终端的配置带宽中共包括 8个子带宽, 频率由低到高可以是第一子 带宽、 第二子带宽、 第三子带宽 ... ...第八子带宽, 可以设置第一子带宽、 第三 子带宽、 第五子带宽和第七子带宽为用于 SRS传输的子带宽。
方案二, 用于 SRS传输的子带宽至少包括配置带宽的上边界处的子带宽和 下边界处的子带宽。
例三, 终端的配置带宽中共包括 4个子带宽, 频率由低到高可以是第一子 带宽、 第二子带宽、 第三子带宽、 第四子带宽, 可以设置第一子带宽和第四子 带宽为用于 SRS传输的子带宽。
例四, 终端的配置带宽中共包括 8个子带宽, 频率由低到高可以是第一子 带宽、 第二子带宽、 第三子带宽 ... ...第八子带宽, 可以设置第一子带宽和第八 子带宽为用于 SRS传输的子带宽。
本发明实施例中, 除了进行上述子带宽的配置外, 终端还可以预先配置跳 频周期内的子帧中与用于 SRS传输的每个子带宽对应的子帧。基站也可以预先 配置跳频周期内的子帧中与用于 SRS传输的每个子带宽对应的子帧。 本发明实 施例中, 按照预设的跳频周期进行 SRS的传输, 每个跳频周期内, 可以在用于 SRS传输的每个子带宽上各进行一次 SRS发送。 其中, 用于 SRS传输的子带宽 对应的子帧, 可以是进行该子带宽的 SRS传输所使用的子帧, 即在该子帧中进 行该子带宽的 SRS传输。 在选取跳频周期内与用于 SRS传输的子带宽对应的子 帧时, 可以在跳频周期内的子帧中任意选取, 也可以设置相应的选取规则。
在每个用于 SRS传输的子带宽上, 可以按照一定的时长间隔进行 SRS的发 送, 该时长间隔即为跳频周期, 这样, 在每个用于 SRS传输的子带宽上, 都按 照跳频周期进行 SRS的发送。
具体的, 可以先在基站配置跳频周期内的子帧中与用于 SRS传输的每个子 带宽对应的子帧, 然后由基站将相应的配置信息发送给终端。 或者, 也可以分 别在基站和终端配置跳频周期内的子帧中与用于 SRS传输的每个子带宽对应 的子帧, 即可以通过其它的方式将相应的配置信息直接写入终端。
优选的, 上述预先配置的与用于 SRS传输的子带宽对应的各子帧之间间隔 的时长可以为预设的单位时长的整数倍。 该单位时长可以是现有技术中的 SRS 发送周期。
在现有技术中进行跳频 SRS发送时 , 跳频周期是 SRS发送周期的 N倍( N 为配置带宽中的子带宽总数), 也即在跳频周期中有 N个 SRS发送周期。 本发明 实施例中, 在配置跳频周期内的子帧中与用于 SRS传输的每个子带宽对应的子 帧时, 可以利用现有技术中的 SRS发送周期, 即利用现有技术中发送 SRS的子 帧。
例如在上面例一中, 在一个跳频周期内, 第一个 SRS发送周期可以在第一 子带宽上发送 SRS , 第二个 SRS发送周期可以在第三子带宽上发送 SRS , 第三 个 SRS发送周期和第四个 SRS发送周期可以不发送 SRS。 或者也可以, 在一个 跳频周期内, 第一个 SRS发送周期可以在第一子带宽上发送 SRS , 第三个 SRS 发送周期可以在第三子带宽上发送 SRS , 第二个 SRS发送周期和第四个 SRS发 送周期可以不发送 SRS。 还有其它情况, 本实施例中不——列举。
又例如在上面例二中, 在一个跳频周期内, 第一个 SRS发送周期可以在第 一子带宽上发送 SRS, 第二个 SRS发送周期可以在第五子带宽上发送 SRS, 第 三个 SRS发送周期可以在第三子带宽上发送 SRS , 第四个 SRS发送周期可以在 第七子带宽上发送 SRS, 第四个 SRS发送周期至第八个 SRS发送周期可以不发 送 SRS。 或者也可以, 如图 3所示, 在一个跳频周期内, 第一个 SRS发送周期可 以在第一子带宽上发送 SRS, 第三个 SRS发送周期可以在第五子带宽上发送 S S , 第五个 SRS发送周期可以在第三子带宽上发送 SRS, 第七个 SRS发送周 期可以在第七子带宽上发送 SRS, 其它的 SRS发送周期可以不发送 SRS (图中 斜线部分为传输 SRS的时频资源, 纵轴为频率横轴为时间)。 还有其它情况, 本实施例中不 列举。
又例如在上面例三中, 在一个跳频周期内, 第一个 SRS发送周期可以在第
一子带宽上发送 SRS , 第四个 SRS发送周期可以在第四子带宽上发送 SRS , 第 二个 SRS发送周期和第三个 SRS发送周期可以不发送 SRS。 或者也可以, 如图 4 所示,在一个跳频周期内, 第一个 SRS发送周期可以在第一子带宽上发送 SRS , 第三个 SRS发送周期可以在第四子带宽上发送 SRS , 第二个 SRS发送周期和第 四个 SRS发送周期可以不发送 SRS (图中斜线部分为传输 SRS的时频资源, 纵 轴为频率横轴为时间)。 还有其它情况, 本实施例中不——列举。
又例如在上面例四中, 在一个跳频周期内, 第一个 SRS发送周期可以在第 一子带宽上发送 SRS , 第八个 SRS发送周期可以在第八子带宽上发送 SRS , 第 二个 SRS发送周期至第七个 SRS发送周期可以不发送 SRS。 或者也可以, 在一 个跳频周期内,第一个 SRS发送周期可以在第一子带宽上发送 SRS ,第五个 SRS 发送周期可以在第八子带宽上发送 SRS,其它的 SRS发送周期可以不发送 SRS。 还有其它情况, 本实施例中不——列举。
如图 2所示, 本发明实施例提供的确定上行信道状态信息的方法的处理流 程可以包括如下的步骤:
步骤 201 , 终端在上述配置的用于 SRS传输的子带宽上向基站发送 SRS。 配 置带宽的各子带宽中, 用于 SRS传输的子带宽之外的子带宽, 则为不用于 SRS 传输的子带宽。
具体的, 终端可以在每个跳频周期内与用于 SRS传输的子带宽对应的各子 帧中在子帧对应的用于 SRS传输的子带宽上向基站发送 SRS。 在终端和基站, 可以建立跳频周期内各用于 SRS传输的子带宽与子帧的对应关系, 这些子帧可 以称为用于 SRS传输的子帧。 在进行 SRS发送时, 在某个子带宽上发送 SRS时, 使用该子带宽对应的子帧。
步骤 202,基站在用于 SRS传输的子带宽上,接收终端在用于 SRS传输的子 带宽上发送的 SRS。
具体的, 基站在每个跳频周期内与用于 SRS传输的子带宽对应的各子帧 中, 接收终端在子帧对应的用于 SRS传输的子带宽上发送的 SRS。
步骤 203,基站根据在用于 SRS传输的各子带宽上接收到的 SRS,确定用于 SRS传输的各子带宽对应的上行信道状态信息。 根据 SRS计算子带宽上行信道 状态信息的方法有很多种, 本发明实施例不对此进行限制。
步骤 204, 基站根据用于 SRS传输的各子带宽对应的上行信道状态信息, 确定配置带宽中不用于 SRS传输的子带宽对应的上行信道状态信息。
根据用于 SRS传输的各子带宽对应的上行信道状态信息确定配置带宽中 其它子带宽对应的上行信道状态信息, 可以有很多中方法。 例如, 用于 SRS传 输的子带宽数目为 1 , 可以将这一个子带宽对应的上行信道状态信息直接作为 其它子带宽对应的上行信道状态信息。 又例如, 可以先确定用于 SRS传输的各 子带宽对应的上行信道状态信息的平均值,然后将此平均值作为其它子带宽对 应的上行信道状态信息。
优选的 , 基站可以根据用于 SRS传输的各子带宽对应的上行信道状态信 息, 并基于插值法或曲线拟合法, 确定配置带宽中不用于 SRS传输的子带宽对 应的上行信道状态信息。 其中, 插值法又可分为内插值法和外插值法, 上述例 三和例四的情况可以使用内插值法,上述例一和例二的情况可以使用外插值法 和内插值法结合。 优选的, 可以釆用线性插值法进行计算。 下面给出了一些基 于插值法或曲线拟合法计算上行信道状态信息的例子, 其中, 以 SINR ( Signal to Interference plus Noise Ratio, 信号与干扰力。噪声比) 的计算为例。
例如在上面例一的情况下, 如果在步骤 203中计算出第一子带宽对应的 SINR为 5dB、 第三子带宽对应的 SINR为 7dB, 那么根据插值法或曲线拟合法可 以计算出第二子带宽对应的 SINR为 6dB、 第四子带宽对应的 SINR为 8dB。
例如在上面例二的情况下, 如果在步骤 203中计算出第一子带宽、 第三子 带宽、 第五子带宽和第七子带宽对应的 SINR均为 3dB , 那么根据插值法或曲线 拟合法可以计算出第二子带宽、 第四子带宽、 第六子带宽和第八子带宽对应的 SINR均为 3dB。
例如在上面例三的情况下, 如果在步骤 203中计算出第一子带宽对应的 SINR为 5dB、 第四子带宽对应的 SINR为 8dB, 那么根据插值法或曲线拟合法可 以计算出第二子带宽对应的 SINR为 6dB、 第三子带宽对应的 SINR为 7dB。
例如在上面例四的情况下, 如果在步骤 203中计算出第一子带宽对应的 SINR为 3dB、 第八子带宽对应的 SINR为 3dB, 那么根据插值法或曲线拟合法可 以计算出第二子带宽至第七子带宽对应的 SINR为 3dB。
本发明实施例中, 基站预先配置终端的配置带宽中的部分子带宽为用于
SRS传输的子带宽, 基站在用于 SRS传输的子带宽上, 接收终端在用于 SRS传 输的子带宽上发送的 SRS , 并根据接收到的 SRS , 确定用于 SRS传输的各子带 宽对应的上行信道状态信息, 再根据用于 SRS传输的各子带宽对应的上行信道 状态信息, 确定配置带宽中不用于 SRS传输的子带宽对应的上行信道状态信 息, 这样, 可以只在终端的配置带宽中的部分子带宽上发送 SRS, 从而, 可以 提高终端上行链路资源的利用率。 实施例三
基于相同的技术构思, 本发明实施例还提供了一种基站, 如图 5所示, 所 述基站包括:
配置模块 510 , 用于预先配置终端的配置带宽中的部分子带宽为用于 SRS 传输的子带宽, 其中, 所述配置带宽包括多个宽度为跳频带宽的子带宽; 接收模块 520 , 用于在所述用于 SRS传输的子带宽上, 接收所述终端在所 述用于 SRS传输的子带宽上发送的 SRS;
确定模块 530,用于根据在用于 SRS传输的各子带宽上接收到的 SRS,确定 所述用于 SRS传输的各子带宽对应的上行信道状态信息; 根据所述用于 SRS传 输的各子带宽对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS传输 的子带宽对应的上行信道状态信息。
优选的, 所述配置模块 510 , 还用于: 预先配置跳频周期内的子帧中与用 于 SRS传输的每个子带宽对应的子帧;
所述接收模块 520, 具体用于: 在每个跳频周期内与所述用于 SRS传输的 宽上发送的 SRS。
优选的,所述预先配置的各子帧之间间隔的时长为预设的单位时长的整数 倍。
优选的, 所述用于 SRS传输的子带宽, 具体为在所述配置带宽的各子带宽 中每间隔预设数目的子带宽选取一个子带宽而得到的多个子带宽。
优选的, 所述用于 SRS传输的子带宽至少包括所述配置带宽的上边界处的 子带宽和下边界处的子带宽。
优选的, 所述确定模块 530 , 具体用于:
根据所述用于 SRS传输的各子带宽对应的上行信道状态信息, 并基于插值 法或曲线拟合法, 确定所述配置带宽中不用于 SRS传输的子带宽对应的上行信 道状态信息。 基于相同的技术构思, 本发明实施例还提供了一种终端, 所述终端包括: 配置模块, 用于预先配置所述终端的配置带宽中的部分子带宽为用于 SRS 传输的子带宽, 其中, 所述配置带宽包括多个宽度为跳频带宽的子带宽; 发送模块, 用于在所述用于 SRS传输的子带宽上向基站发送 SRS; 以使所 述基站根据在用于 SRS传输的各子带宽上接收到的 SRS , 确定所述用于 SRS传 输的各子带宽对应的上行信道状态信息, 并根据所述用于 SRS传输的各子带宽 对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS传输的子带宽对应 的上行信道状态信息。
优选的,所述配置模块,还用于:预先配置跳频周期内的子帧中与用于 SRS 传输的每个子带宽对应的子帧;
所述发送模块, 具体用于: 所述终端在每个跳频周期内与所述用于 SRS传 站发送 SRS。
优选的,所述预先配置的各子帧之间间隔的时长为预设的单位时长的整数 倍。
优选的, 所述用于 SRS传输的子带宽, 具体为在所述配置带宽的各子带宽 中每间隔预设数目的子带宽选取一个子带宽而得到的多个子带宽。
优选的, 所述用于 SRS传输的子带宽至少包括所述配置带宽的上边界处的 子带宽和下边界处的子带宽。
本发明实施例中, 基站预先配置终端的配置带宽中的部分子带宽为用于
SRS传输的子带宽, 基站在用于 SRS传输的子带宽上, 接收终端在用于 SRS传 输的子带宽上发送的 SRS, 并根据接收到的 SRS, 确定用于 SRS传输的各子带 宽对应的上行信道状态信息, 再根据用于 SRS传输的各子带宽对应的上行信道 状态信息, 确定配置带宽中不用于 SRS传输的子带宽对应的上行信道状态信
息, 这样, 可以只在终端的配置带宽中的部分子带宽上发送 SRS, 从而, 可以 提高终端上行链路资源的利用率。 需要说明的是:上述实施例提供的确定上行信道状态信息的装置在确定上 行信道状态信息时, 仅以上述各功能模块的划分进行举例说明, 实际应用中, 可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构 划分成不同的功能模块, 以完成以上描述的全部或者部分功能。 另外, 上述实 施例提供的确定上行信道状态信息的装置与确定上行信道状态信息的方法实 施例属于同一构思, 其具体实现过程详见方法实施例, 这里不再赘述。
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通 过硬件来完成, 也可以通过程序来指令相关的硬件完成, 所述的程序可以存储 于一种计算机可读存储介质中, 上述提到的存储介质可以是只读存储器,磁盘 或光盘等。
以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的 精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的 保护范围之内。
Claims
1、 一种确定上行信道状态信息的方法, 其特征在于, 基站预先配置终端 的配置带宽中的部分子带宽为用于 SRS传输的子带宽, 其中, 所述配置带宽 包括多个宽度为跳频带宽的子带宽, 所述方法包括:
所述基站在所述用于 SRS传输的子带宽上,接收所述终端在所述用于 SRS 传输的子带宽上发送的 SRS;
所述基站根据在用于 SRS传输的各子带宽上接收到的 SRS, 确定所述用 于 SRS传输的各子带宽对应的上行信道状态信息;
所述基站根据所述用于 SRS传输的各子带宽对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS传输的子带宽对应的上行信道状态信息。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括: 所述基站预先配 置跳频周期内的子帧中与用于 SRS传输的每个子带宽对应的子帧;
所述基站在所述用于 SRS传输的子带宽上,接收所述终端在所述用于 SRS 传输的子带宽上发送的 SRS, 具体为: 所述基站在每个跳频周期内与所述用于 S S传输的子带宽对应的各子帧中,接收所述终端在所述子帧对应的用于 SRS 传输的子带宽上发送的 SRS。
3、 根据权利要求 2所述的方法, 其特征在于, 所述预先配置的各子帧之 间间隔的时长为预设的单位时长的整数倍。
4、 根据权利要求 1所述的方法, 其特征在于, 所述用于 SRS传输的子带 宽,具体为在所述配置带宽的各子带宽中每间隔预设数目的子带宽选取一个子 带宽而得到的多个子带宽。
5、 根据权利要求 1所述的方法, 其特征在于, 所述用于 SRS传输的子带 宽至少包括所述配置带宽的上边界处的子带宽和下边界处的子带宽。
6、根据权利要求 1所述的方法,其特征在于,所述基站根据所述用于 SRS 传输的各子带宽对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS 传输的子带宽对应的上行信道状态信息, 具体为:
所述基站根据所述用于 SRS传输的各子带宽对应的上行信道状态信息, 并基于插值法或曲线拟合法, 确定所述配置带宽中不用于 SRS传输的子带宽 对应的上行信道状态信息。
7、 一种确定上行信道状态信息的方法, 其特征在于, 终端预先配置所述
终端的配置带宽中的部分子带宽为用于 SRS传输的子带宽, 其中, 所述配置 带宽包括多个宽度为跳频带宽的子带宽, 所述方法包括:
所述终端在所述用于 SRS传输的子带宽上向基站发送 SRS; 以使所述基 站根据在用于 SRS传输的各子带宽上接收到的 SRS, 确定所述用于 SRS传输 的各子带宽对应的上行信道状态信息, 并根据所述用于 SRS传输的各子带宽 对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS传输的子带宽对 应的上行信道状态信息。
8、 根据权利要求 7所述的方法, 其特征在于, 还包括: 所述终端预先配 置跳频周期内的子帧中与用于 SRS传输的每个子带宽对应的子帧;
所述终端在所述用于 SRS传输的子带宽上向基站发送 SRS , 具体为: 所 述终端在每个跳频周期内与所述用于 SRS传输的子带宽对应的各子帧中在所 述子帧对应的用于 SRS传输的子带宽上向基站发送 SRS。
9、 根据权利要求 8所述的方法, 其特征在于, 所述预先配置的各子帧之 间间隔的时长为预设的单位时长的整数倍。
10、 根据权利要求 7所述的方法, 其特征在于, 所述用于 SRS传输的子 带宽,具体为在所述配置带宽的各子带宽中每间隔预设数目的子带宽选取一个 子带宽而得到的多个子带宽。
11、 根据权利要求 7所述的方法, 其特征在于, 所述用于 SRS传输的子 带宽至少包括所述配置带宽的上边界处的子带宽和下边界处的子带宽。
12、 一种基站, 其特征在于, 所述基站包括:
配置模块, 用于预先配置终端的配置带宽中的部分子带宽为用于 SRS传 输的子带宽, 其中, 所述配置带宽包括多个宽度为跳频带宽的子带宽;
接收模块, 用于在所述用于 SRS传输的子带宽上, 接收所述终端在所述 用于 SRS传输的子带宽上发送的 SRS;
确定模块, 用于根据在用于 SRS传输的各子带宽上接收到的 SRS , 确定 所述用于 SRS传输的各子带宽对应的上行信道状态信息; 根据所述用于 SRS 传输的各子带宽对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS 传输的子带宽对应的上行信道状态信息。
13、 根据权利要求 12所述的基站, 其特征在于, 所述配置模块, 还用于: 预先配置跳频周期内的子帧中与用于 SRS传输的每个子带宽对应的子帧;
所述接收模块, 具体用于: 在每个跳频周期内与所述用于 SRS传输的子 带宽对应的各子帧中, 接收所述终端在所述子帧对应的用于 SRS传输的子带 宽上发送的 SRS。
14、 根据权利要求 13所述的基站, 其特征在于, 所述预先配置的各子帧 之间间隔的时长为预设的单位时长的整数倍。
15、 根据权利要求 12所述的基站, 其特征在于, 所述用于 SRS传输的子 带宽,具体为在所述配置带宽的各子带宽中每间隔预设数目的子带宽选取一个 子带宽而得到的多个子带宽。
16、 根据权利要求 12所述的基站, 其特征在于, 所述用于 SRS传输的子 带宽至少包括所述配置带宽的上边界处的子带宽和下边界处的子带宽。
17、 根据权利要求 12所述的基站, 其特征在于, 所述确定模块, 具体用 于:
根据所述用于 SRS传输的各子带宽对应的上行信道状态信息, 并基于插 值法或曲线拟合法, 确定所述配置带宽中不用于 SRS传输的子带宽对应的上 行信道状态信息。
18、 一种终端, 其特征在于, 所述终端包括:
配置模块,用于预先配置所述终端的配置带宽中的部分子带宽为用于 SRS 传输的子带宽, 其中, 所述配置带宽包括多个宽度为跳频带宽的子带宽; 发送模块, 用于在所述用于 SRS传输的子带宽上向基站发送 SRS; 以使 所述基站根据在用于 SRS传输的各子带宽上接收到的 SRS ,确定所述用于 SRS 传输的各子带宽对应的上行信道状态信息, 并根据所述用于 SRS传输的各子 带宽对应的上行信道状态信息, 确定所述配置带宽中不用于 SRS传输的子带 宽对应的上行信道状态信息。
19、 根据权利要求 18所述的终端, 其特征在于, 所述配置模块, 还用于: 所述发送模块, 具体用于: 所述终端在每个跳频周期内与所述用于 SRS 传输的子带宽对应的各子帧中在所述子帧对应的用于 SRS传输的子带宽上向 基站发送 SRS。
20、 根据权利要求 19所述的终端, 其特征在于, 所述预先配置的各子帧 之间间隔的时长为预设的单位时长的整数倍。
21、 根据权利要求 18所述的终端, 其特征在于, 所述用于 SRS传输的子 带宽,具体为在所述配置带宽的各子带宽中每间隔预设数目的子带宽选取一个 子带宽而得到的多个子带宽。
22、 根据权利要求 18所述的终端, 其特征在于, 所述用于 SRS传输的子 带宽至少包括所述配置带宽的上边界处的子带宽和下边界处的子带宽。
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CN105812088A (zh) * | 2014-12-30 | 2016-07-27 | 中兴通讯股份有限公司 | 探测参考信号srs发送方法、装置及接收方法、装置 |
KR101985126B1 (ko) * | 2015-01-30 | 2019-05-31 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 단일 부대역 사용자 장비를 갖는 무선 통신 시스템 |
CN108737051A (zh) * | 2017-04-25 | 2018-11-02 | 深圳市金立通信设备有限公司 | 一种探测参考信号srs的传输方法、相关设备及*** |
RU2752271C1 (ru) * | 2017-11-16 | 2021-07-26 | Бейдзин Сяоми Мобайл Софтвэр Ко., Лтд. | Способ и устройство для конфигурирования скачкообразной перестройки частоты |
CN110972264B (zh) * | 2018-09-28 | 2023-06-27 | ***通信有限公司研究院 | 一种带宽配置方法、终端、网络设备和存储介质 |
CN113677007B (zh) * | 2020-05-15 | 2024-04-23 | 大唐移动通信设备有限公司 | 一种上行信道状态信息的获取方法及装置 |
KR20230061355A (ko) * | 2020-09-04 | 2023-05-08 | 퀄컴 인코포레이티드 | 부분 대역폭들에서 사운딩 기준 신호들의 주파수 호핑을 위한 방법들 및 장치들 |
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