Techniques for decoupling downlink and uplink operations
First Claim
1. A method for wireless communications by a wireless node, comprising:
- receiving, from a base station of a first cell, information about a random access channel (RACH) configuration for a wireless device;
detecting, based on the RACH configuration, a RACH transmission from the wireless device;
reporting the detected RACH transmission to the base station of the first cell; and
receiving, from the base station of the first cell, first signaling indicating one or more parameters for use in performing at least one of uplink or downlink communications with the wireless device based on the reported RACH transmission, wherein the one or more parameters include at least one of timing advance parameters for uplink transmissions, power adjustment parameters, a virtual cell identification, or a modulation and coding scheme.
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Abstract
Techniques are provided for decoupling uplink and downlink operations. According to certain aspects, a wireless node (e.g., a low power node) may receive, from a base station of a first cell, signaling indicating a random access channel (RACH) configuration for a wireless device. The wireless node may then detect the wireless node performing a RACH detection (based on the RACH configuration) and report the RACH detection and desired UL configuration to the base station of the first cell. The base station of the first cell may then select the wireless node for serving the wireless device for UL operations (e.g., based on the reported RACH detection-and similar reports from other wireless nodes detecting the same RACH procedure).
11 Citations
24 Claims
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1. A method for wireless communications by a wireless node, comprising:
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receiving, from a base station of a first cell, information about a random access channel (RACH) configuration for a wireless device; detecting, based on the RACH configuration, a RACH transmission from the wireless device; reporting the detected RACH transmission to the base station of the first cell; and receiving, from the base station of the first cell, first signaling indicating one or more parameters for use in performing at least one of uplink or downlink communications with the wireless device based on the reported RACH transmission, wherein the one or more parameters include at least one of timing advance parameters for uplink transmissions, power adjustment parameters, a virtual cell identification, or a modulation and coding scheme. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for wireless communications by a base station, comprising:
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transmitting, to a wireless device, a random access channel (RACH) configuration; transmitting, to a wireless node, information about the RACH configuration for the wireless device; receiving, from the wireless node, first signaling indicating a RACH transmission detected by the wireless node based on the information about the RACH configuration; and transmitting, to the wireless node, second signaling indicating one or more parameters for use in performing at least one of uplink or downlink communications with the wireless device based on the first signaling, wherein the one or more parameters include at least one of timing advance parameters for uplink transmissions, power adjustment parameters, a virtual cell identification, or a modulation and coding scheme. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. An apparatus for wireless communications, comprising:
at least one processor configured to; receive, from a base station of a first cell, information about a random access channel (RACH) configuration for a wireless device; detect, based on the RACH configuration, a RACH transmission from the wireless device; report the detected RACH transmission to the base station of the first cell; and
a memory coupled with the at least one processor; andreceive, from the base station of the first cell, first signaling indicating one or more parameters for use in performing at least one of uplink or downlink communications with the wireless device based on the reported RACH configuration, wherein the one or more parameters include at least one of timing advance parameters for uplink transmissions, power adjustment parameters, a virtual cell identification, or a modulation and coding scheme. - View Dependent Claims (15, 16, 17, 18)
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19. An apparatus for wireless communications, comprising:
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at least one processor configured to; transmit, to a wireless device, a random access channel (RACH) configuration; transmit, to a wireless node, information about the RACH configuration for the wireless device; receive, from the wireless node, first signaling indicating a RACH transmission detected by the wireless node based on the information about the RACH configuration; and transmit, to the wireless node, second signaling indicating one or more parameters for use in performing at least one of uplink or downlink communications with the wireless device based on the first signaling; and a memory coupled with the at least one processor, wherein the one or more parameters include at least one of timing advance parameters for uplink transmissions, power adjustment parameters, a virtual cell identification, or a modulation and coding scheme. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification